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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4607. Отображено 200.
20-01-2002 дата публикации

СПОСОБ И УСТРОЙСТВО ДЛЯ МОКРОЙ ОЧИСТКИ СОПЛОВОГО КОЛЬЦА РАБОТАЮЩЕЙ НА ВЫХЛОПНОМ ГАЗЕ ТУРБИНЫ ГАЗОТУРБОНАГНЕТАТЕЛЯ (ВАРИАНТЫ)

Номер: RU2178531C2

Способ и варианты устройства для мокрой очистки соплового кольца работающей на выхлопном газе турбины газотурбонагнетателя. При реализации способа после определения необходимости очистки соплового кольца газотурбонагнетателя запускают автоматически протекающий цикл очистки, при котором воду несколько раз в течение короткого времени впрыскивают в зону перед сопловым кольцом и между впрысками выдерживают паузу для повторного нагрева соплового кольца. Устройства для реализации способа в зоне перед сопловым кольцом газотурбонагнетателя содержат радиальные отверстия с установленными в них форсунками, соединенными через соответствующие линии с подводящей линией для воды. Между измерительным звеном, регистрирующим изменения состояния выхлопных газов двигателя, и находящимся в подводящей линии исполнительным звеном расположен управляющий элемент. Изобретения позволяют улучшить очистку соплового кольца газотурбонагнетателя при использовании меньших количеств воды и при меньшем снижении мощности ...

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24-08-2018 дата публикации

СПОСОБ И СИСТЕМА РЕГУЛИРОВАНИЯ РАБОЧЕЙ ТЕМПЕРАТУРЫ УСТРОЙСТВА СОЗДАНИЯ ДАВЛЕНИЯ НАДДУВА ТРАНСПОРТНОГО СРЕДСТВА И ТРАНСПОРТНОЕ СРЕДСТВО, СОДЕРЖАЩЕЕ СИСТЕМУ ДЛЯ РЕГУЛИРОВАНИЯ ТЕМПЕРАТУРЫ

Номер: RU2665011C2

Изобретение может быть использовано в двигателях внутреннего сгорания транспортных средств. Способ регулирования рабочей температуры устройства создания давления наддува транспортного средства заключается в том, что осуществляют этап (100) нахождения разности (ΔP) давлений между текущим рабочим давлением (Р) устройства создания наддува и целевым давлением (P) наддува, при котором устройство создания давления наддува будет работать при предельной рабочей температуре (T). Осуществляют этап (110) нахождения шага (dP) давления, являющегося функцией разности (ΔP) давлений и заданного количества (N) шагов давления. Осуществляют этап (120) последовательной настройки текущего рабочего давления (Р) с шагом (dP) давления до тех пор, пока рабочая температура (Т) устройства создания давления наддува не станет по существу равной предельной рабочей температуре (T). Раскрыты система регулирования рабочей температуры устройства создания давления наддува транспортного средства, машиночитаемый носитель, ...

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10-10-2010 дата публикации

ДВИГАТЕЛЬ С НАГНЕТАТЕЛЕМ (ВАРИАНТЫ)

Номер: RU2401388C2

Изобретение относится к двигателестроению. Предложен двигатель (1), содержащий нагнетатель (40), состоящий из компрессора (41), имеющего множество лопастей (45) на турбинном валу (42), турбины (42), по меньшей мере, одно средство (44) пошагового перемещения на турбинном валу (42) или множестве лопастей (45) и датчик (62) угловой скорости турбины, который распознает вращение средства (44) пошагового перемещения и вращение множества лопастей (45) соответственно и соединен с БУД 60. В двигателе (1) также предусмотрено средство вычисления угловой скорости турбины, которое вычисляет угловую скорость, принимая множество импульсов на один оборот турбинного вала. Изобретение обеспечивает снижение стоимости, повышение эффективности эксплуатации и надежности двигателя. 5 н.п. ф-лы, 17 ил.

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26-08-2020 дата публикации

СПОСОБ И СИСТЕМА (ВАРИАНТЫ) РЕГУЛИРОВАНИЯ ТЕМПЕРАТУРЫ УСТРОЙСТВА СОЗДАНИЯ ДАВЛЕНИЯ НАДДУВА ТРАНСПОРТНОГО СРЕДСТВА И ТРАНСПОРТНОЕ СРЕДСТВО, СОДЕРЖАЩЕЕ ТАКУЮ СИСТЕМУ

Номер: RU2716091C9

Способ и система регулирования температуры устройства создания давления наддува для транспортного средства, при этом способ содержит: определение температурного сдвига ΔΤ, на который может быть повышен предварительно определенный предел Tрабочей температуры устройства создания давления наддува, причем температурный сдвиг ΔΤ является функцией предварительно определенного максимального температурного сдвига ∆Tи динамического коэффициента SF пересчета. 3 н. и 12 з.п. ф-лы, 5 ил.

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20-09-2005 дата публикации

ДВИГАТЕЛЬ С ТУРБОНАДДУВОМ С ВОСПЛАМЕНЕНИЕМ ОТ СЖАТИЯ

Номер: RU2005112005A
Принадлежит:

... 1. Элемент для турбокомпрессора, содержащий корпус, образующий камеру для заданной части турбокомпрессора; и кожух, окружающий корпус, причем кожух располагается на расстоянии относительно внешней поверхности корпуса для образования пути текучей среды по внешней поверхности корпуса, причем путь текучей среды имеет входное и выходное отверстия для текучей среды. 2. Элемент по п.1, в котором путь текучей среды имеет выходное отверстие для текучей среды, размещенное в наиболее удаленном положении на корпусе от входного отверстия для текучей среды. 3. Элемент по п.1, в котором корпус является корпусом компрессора турбокомпрессора и имеет входное отверстие для воздуха для размещения несжатого воздуха и выходное отверстие для воздуха для выпуска сжатого воздуха в двигатель. 4. Элемент по п.1, в котором кожух выполнен из алюминия и прикреплен к корпусу сваркой. 5. Турбокомпрессор, включающий в себя элемент, содержащий корпус, образующий камеру для заданной части турбокомпрессора, и кожух, окружающий ...

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07-04-1992 дата публикации

Силовая установка

Номер: SU1724911A2
Принадлежит:

Изобретение может быть использовано в системах наддува двигателей внутреннего сгорания для очистки проточных частей турбины и компрессора. Силовая установка содержит двигатель 1 внутреннего сгорания, турбокомпрессор 2 с газоприемным патрубком турбины 3 и воздуховпуекным патрубком компрессора 4, водотрубный котел 5 с пароводяным 6 и водяным 7 барабанами. Двигатель 1 внутреннего сгорания и турбокомпрессор 2 выполнены охлаждаемыми водой. Канал 8 системы охлаждения двигателя подключен к камерам 9 и 10 рубашки водяного охлаждения турбокомпрессора 2.

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30-07-1991 дата публикации

Двигатель внутреннего сгорания

Номер: SU1666789A2
Принадлежит:

Изобретение может быть использовано в системах очистки газовоздушных трактов двигателей. Цель изобретения - повышение эффективности очистки проточной части турбокомпрессора. Двигатель содержит топливный насос 1, трубопроводы 2 высокого давления для подачи топлива к форсункам 3, магистраль слива утечек из топливного насоса 1 и форсунок 3, состоящую из трубопроводов 4 и 5, соединенную через запорный клапан 6 с емкостью 7 сбора жидкости. Емкость 7 соединена трубкой 8 с распылителем 9 моющей жидкости, который установлен во впускном патрубке 10 компрессора 11 и снабжен кожухом 12. Кожух 12 и емкость 7 сообщены при помощи канала 13 с установленным в нем органом 14 перекрытия его проходного сечения с воздухонапорным патрубком 15 компрессора 11. За счет создания повышенного давления в емкости увеличивается подача и скорость истечения моющей жидкости из распылителя, что позволяет повысить эффективность очистки проточной части турбокомпрессора. 1 ил.

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15-05-2014 дата публикации

Method for protecting exhaust gas-driven charging device, such as turbocharger of internal combustion engine of motor vehicle, involves detecting rotational speed of charging device and actuating turbocharger based on target boost pressure

Номер: DE102012220726A1
Принадлежит:

The method involves detecting a rotational speed (50) of the charging device and actuating the turbocharger based on a target boost pressure (40), which depends on the detected rotational speed of the charging device. The target boost pressure is limited to a predetermined value when a gradient of the rotational speed exceeds a threshold value. The target boost pressure is lowered for limiting to the predetermined value. Independent claims are included for the following: (1) a device, particularly processing unit for protecting an exhaust gas-driven charging device of an internal combustion engine; and (2) a computer program with program code medium for protecting an exhaust gas-driven charging device of an internal combustion engine.

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30-07-1981 дата публикации

AUFLADESYSTEM FUER EINE BRENNKRAFTMASCHINE

Номер: DE0003002701A1
Принадлежит:

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26-08-2010 дата публикации

System, das die Turbodrehzahl durch Steuern der Brennstofflieferung begrenzt

Номер: DE112008002049T5
Принадлежит: CATERPILLAR INC, CATERPILLAR INC.

Turboladersteuersystem (10), das Folgendes aufweist: einen Motor (12); ein Brennstoffsystem (14), das konfiguriert ist, um einen Brennstofffluss in den Motor zu regeln; ein Lufteinlasssystem (16), das konfiguriert ist, um einen Luftfluss in den Motor zu regeln; einen Sensor (82), der angeordnet ist, um einen Drehzahlwert des Lufteinlasssystems abzufühlen; und eine Steuervorrichtung (74), die konfiguriert ist, um den Drehzahlwert aufzunehmen und den Brennstofffluss in den Motor als eine Funktion des Drehzahlwertes zu regeln.

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14-11-2013 дата публикации

Durch Gasdruck vorgespanntes Abdichtverfahren für eine Betätigungswelle

Номер: DE112012000911T5
Принадлежит: BORGWARNER INC, BORGWARNER INC.

Die Neigung für eine Gasleckage um eine Welle herum, die sich durch eine Bohrung erstreckt, die Volumen unterschiedlicher Drücke verbindet, z. B. ein Turboladerturbinengehäuse und die Umgebungsluft, wird durch den Zusatz eines Paars von Abdichtringen minimiert, die durch einen Gasdruck vorgespannt werden, um eine durchgehende Gas- und Rußabdichtung bereitzustellen.

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20-09-2012 дата публикации

Abgasturbolader

Номер: DE112010001123T5
Принадлежит: BORGWARNER INC, BORGWARNER INC.

Die Erfindung bezieht sich auf einen Abgasturbolader (1) mit einer Wastegate-Anordnung (5), bei der die baulichen Anpassungsmöglichkeiten für verschiedene Einbaufälle und die Dichtigkeit der Wastegate-Anordnung (5) verbessert wird. Der Abgasturbolader umfasst einen Verdichter (2), eine Turbine (3), die ein Turbinengehäuse (16) mit einer Spirale (15) aufweist und die über einen sich entlang einer Laderachse (L) erstreckenden Rotor (4) mit dem Verdichter (2) verbunden ist, und eine Wastegate-Anordnung (5) der Turbine (3). Die Wastegate-Anordnung (5) weist eine Steuerdose (6), eine durch die Steuerdose (6) bewegbare Regelstange (7), einen Hebel (8), der über ein Führungsstück (9) mit der Regelstange (7) verbunden ist, und eine Spindelwelle (10) auf, die an einem Ende mit dem Hebel (8) und am anderen Ende mit einer Spindel (11) verbunden ist, die einen Klappenteller (12) zum Öffnen und Schließen einer Bypassöffnung (13) trägt. Die Spindelwelle (10) ist hierbei im Wesentlichen parallel zur Laderachse ...

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05-02-2015 дата публикации

Abgasturbolader

Номер: DE112013002154T5
Принадлежит: BORGWARNER INC, BORGWARNER INC.

Die Erfindung betrifft einen Abgasturbolader (1) umfassend ein Lagergehäuse (2), eine im Lagergehäuse 2 gelagerte Welle (3), ein auf der Welle (3) angeordnetes Verdichterrad (5) und ein auf der Welle (3) angeordnetes Turbinenrad (4), ein das Verdichterrad (5) oder das Turbinenrad (4) umschließendes Gehäusebauteil (7), und einen Dichtring (14) zwischen dem Lagergehäuse (2) und dem Gehäusebauteil (7), dadurch gekennzeichnet, dass der Dichtring (14) zur Entfaltung seiner Dichtwirkung in Richtung senkrecht zur Welle (3) verpresst ist.

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05-03-2015 дата публикации

Verfahren zur Entfernung von Auswuchtungsmaterial eines Turbinenrades

Номер: DE112013002879T5
Принадлежит: BORGWARNER INC, BORGWARNER INC.

Ein Turbinenrad (10) für einen Turbolader weist eine Nabe (12) auf und erstreckt sich in einer axialen Richtung zwischen einer Nase (14) und einer Rückwand (22). Die Nabe (12) definiert eine Drehachse (28), die sich in der axialen Richtung erstreckt, und die Rückwand (22) weist eine Umfangskante (20) auf. Mehrere Turbinenschaufeln (26) sind mit der Nabe (12) gekoppelt und in einer Umfangsrichtung im Allgemeinen in gleichen Intervallen um die Drehachse (28) angeordnet. Mindestens ein Bogen (44, 48) ist in der Umfangskante (20) der Rückwand (22) zum Auswuchten des Turbinenrades (10) angeordnet. Der mindestens eine Bogen (44, 48) ist entlang der Umfangskante (20) derart angeordnet, dass die Umfangskante (20) in der Umfangsrichtung um die Drehachse (28) nicht symmetrisch ist.

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03-03-2016 дата публикации

Turbinenseitiges Lagerträger-und Kühlsystem

Номер: DE112014002560T5
Принадлежит: BORGWARNER INC, BORGWARNER INC.

Ein Turbolader (300) weist eine drehbare Welle (312) auf, die durch ein Lagergehäuse (303) verläuft, mit einem turbinenseitigen Lagerträger (580) mit einem Tragriegel (600). Ein turbinenseitiger Lagerträger (580) kann den Tragriegel (600) mit radialen Trägern (610) und (620) umfassen, die mit jeder gegenüberliegenden Seite (492) und (494) des Hohlraums (496) des Lagergehäuses (303) verbunden sind, wobei Öl in Ausnehmungen (640) und (650) über den radialen Trägern (610) und (620) strömen kann. Jeder radiale Träger (610) und (620) des Tragriegels (600) ist vorzugsweise in die entsprechende Seite (492) und (494) integriert. Ein turbinenseitiger Lagerträger (580) kann auch den Tragriegel (600) mit einem Stangenabschnitt (622) umfassen, der einen unteren Verbindungstragriegel (612) bildet, der die Böden beider Lagerträger (490) und (580) unterstützt, die von oben durch das Lagergehäuse (303) gehalten werden. Jeder Tragriegel (600) ist vorzugsweise einteilig mit dem turbinenseitigen Lagerträger ...

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29-09-2016 дата публикации

Aufladevorrichtung

Номер: DE112015000317T5
Принадлежит: BORGWARNER INC, BorgWarner Inc.

Die Erfindung betrifft eine Aufladevorrichtung (1) mit zumindest einem zu dämpfenden Bauteil (2), dadurch gekennzeichnet, dass das Bauteil (2) mit einem Dämpfungselement (3; 7) versehen ist, dessen Dämpfungsmaterial (4) aus Sol-Gelen und/oder Aerogelen aufgebaut ist.

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04-03-2010 дата публикации

Safety device for exhaust turbocharger of motor vehicle, has evaluation device determining temperature of control device via characteristic fields and generating signal when reaching or exceeding predefined temperature threshold value

Номер: DE102008045011A1
Принадлежит:

The device has a sensor device for determining electrical resistance (Rspule) in a coil of an electrical control device. An evaluation device determines coil temperature (Tspule) based on a characteristic field. The coil temperature is in a predefined relation to temperature of the control device, where the relation is stored in another characteristic field. The evaluation device is designed in such a manner to determine the temperature of the control device via the characteristic fields and generate a signal when reaching or exceeding a predefined temperature threshold value. An independent claim is also included for a method for detecting a thermal load of an electrical control device.

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31-07-2014 дата публикации

Leistungssteuerungssystem für ein Fahrzeug, in welchem ein Verbrennungsmotor mit Lader montiert ist

Номер: DE102004028713B4
Принадлежит: DENSO CORP, DENSO CORPORATION

Leistungssteuerungssystem (T) für ein Fahrzeug, umfassend: einen Lader (15, 25) zur Anhebung des Einlaßdrucks in einem Verbrennungsmotor des Fahrzeugs; eine elektrische Rotationsmaschine (11), die als Elektromotor zum Antrieb oder zur Unterstützung des Laders (15, 25) wenigstens im unteren Drehzahlbereich der elektrischen Rotationsmaschine (11) tätig ist; eine erste Speicherenergiequelle (12), die so gestaltet ist, daß sie fähig ist, die elektrische Rotationsmaschine (11) mit Energie zu versorgen; eine oder mehrere andere bordeigene elektrische Einrichtungen (21) als die elektrische Rotationsmaschine (11), wobei diese Einrichtungen auf dem Fahrzeug angebracht sind; eine zweite Speicherenergiequelle (22), die so gestaltet ist, daß sie fähig ist, die bordeigenen elektrischen Einrichtungen (21) mit Energie zu versorgen; einen Hauptgenerator (23), der so gestaltet ist, daß er sowohl die bordeigenen elektrischen Einrichtungen (21) als auch die zweite Speicherenergiequelle (22) mit Energie versorgen ...

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28-12-2000 дата публикации

Exhaust gas turbocharger for internal combustion engine has masses of equal size at equal angular intervals on turbine shaft that engage shaft at equal radial, operationally variable distance

Номер: DE0019928293A1
Принадлежит:

The turbocharger has a turbine (11) acted upon by exhaust gas and a compressor (13) fixed to the turbine via a turbine shaft (12) so as to rotate with the turbine for sucking in air and forcing the compressed air into the engine. Several masses (14) of equal size are mounted at equal angular intervals on the turbine shaft and engage the shaft at an equal radial distance that can be varied during operation.

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30-10-2014 дата публикации

Erkennungsverfahren und Kraftfahrzeug

Номер: DE102014204576A1
Принадлежит:

Es wird ein Erkennungsverfahren (30) zum Erkennen von durch einen Abgasstrom (24) verursachten Ablagerungen an einer in einem Abgasstrang (13) eines Motors (11) angeordneten Turbine (14) beansprucht. In einer Istwertermittlung (32) wird dabei ein Istwert zumindest einer durch die Ablagerungen beeinflussten Zustandsgröße ermittelt und anschließend ausgewertet. Erfindungsgemäß erfolgt die Istwertermittlung (32) in einem Abgasnebenstrom (25), welcher dem Abgasstrom (24) entnommen und in einem Bypass (19) an der Turbine (14) vorbei geführt wird. Zudem wird ein zur Durchführung des Erkennungsverfahrens (30) geeignetes Kraftfahrzeug (10) beansprucht.

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09-08-2007 дата публикации

Turbocharger pressure regulator has flexile membranes arranged so that control rod moves out of regulator on connection to underpressure source

Номер: DE102006021130B3

The pressure regulator has a box (1) covered by a lid (40) with a first flexible membrane (35) spanned by its outer edge (38)between outer edge (39) of the box and the lid. The flexible membrane, its support part (31) and the connection for the underpressure source are assembled and arranged so that the control rod (18) moves out of the regulator on connecting to the underpressure source. A flexible second membrane (16) on the side of the first membrane facing the control rod and fixed by its outer edge (17) on the box (1) bears by its inner edge (22) against the control rod. A guide device (11) for the control rod is attached to the box at a distance from the second membrane, by its side remote from the first membrane. The outer diameter of the second membrane is smaller than the outer diameter of the first membrane clamped between the box and lid.

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20-05-2021 дата публикации

Ladeeinrichtung

Номер: DE102008022468B4

Ladeeinrichtung (1), insbesondere ein Abgasturbolader, mit einer Stelleinrichtung (2) für ein im Wesentlichen bidirektional verstellbares Stellglied (4), insbesondere zur Betätigung eines Wastegate-Ventils oder einer variablen Turbinen-/Verdichtergeometrie (VTG/VFT),- mit einem, an einem Gehäuse (5) der Ladeeinrichtung (1) befestigten, Stellantrieb (6),- mit einem Stellglied (4), das einenends mit dem Stellantrieb (6) und anderenends gelenkig mit einer zu verstellenden Vorrichtung, beispielsweise dem Wastegate-Ventil, wirkungsverbunden ist,- wobei der Stellantrieb (6) schwenkbar am Gehäuse (5) gelagert ist, so dass eine vorzugsweise querkraftfreie Krafteinleitung in das Stellglied (4) erfolgt, dadurch gekennzeichnet,- dass das Gehäuse (5) im Bereich des dem Stellantrieb (6) zugewandten Endes des Stellgliedes (4), eine konvex gewölbte Kontaktfläche (8) oder eine Kontaktkante aufweist, welche mit dem Stellantrieb (6) in Wirkverbindung steht, oder- dass der Stellantrieb (6) über einen, eine ...

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20-01-1999 дата публикации

Monitoring operation of a ceramic gas probe with a heater

Номер: GB0002327271A
Принадлежит:

The gas probe, which is preferably a #-probe for an internal combustion engine, comprises a probe ceramic (Nernst cell) sensing gas molecules, and a probe heating device. The internal resistance of the probe ceramic x is measured and is compared with a desired value y which is determined 10,20 in dependance on the temperature of the gas to be sensed and the heating output of the probe heating device. If the measured value x exceeds the desired value y an error signal is produced and/or output and/or stored. Error detection logic 60 may detect other faults such as a short circuit to positive potential, and/or a fall in load, and/or a short circuit to earth.

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03-12-2003 дата публикации

EGR and VGT system diagnostics and control

Номер: GB0000325310D0
Автор:
Принадлежит:

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04-07-2018 дата публикации

An electric supercharger having a radial flow compressor Assembly

Номер: GB0002557909A
Принадлежит:

A reconfigurable radial flow compressor assembly 3 for an electric supercharger 1 has a vaned insert 22 releasable attached in the diffuser 13 between the compressors wheel 5 and a volute 10 leading to the outlet. The configuration allows the diffuser to be interchangeable between a vaned and non-vaned configuration. Cartridges with and without guide vanes are also disclosed. The walls of either the vaned or non-vanned insert may form part of the diffuser passage 14 together with an opposite surface wall of the diffuser. Vanes are provided in the diffuser to improve the flow characteristics, for example choke and surge, of the compressor. The reconfigurable compressor increases the scope of application over conventional compressors and optimises the manufacturing process. A kit of parts, electrical supercharger, engine system, method of operation and method of manufacture relating to the compressor are also disclosed.

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15-10-2017 дата публикации

Internal combustion engine with a turbocharger

Номер: AT0000517548B1
Принадлежит:

Brennkraftmaschine (1) mit einem Turbolader (2) und einer Steuer- und / oder Regeleinrichtung (3) und wenigstens einer Vorrichtung (4) zur Ermittlung wenigstens eines Kontrollparameters des Turboladers (2), wobei die Vorrichtung (4) mit der Steuer- und/ oder Regeleinrichtung (3) verbunden ist, dadurch gekennzeichnet, dass die Steuer- und/oder Regeleinrichtung (3) dazu ausgebildet ist, nach einem Abschalten der Brennkraftmaschine (1) zu überprüfen, ob der ermittelte Kontrollparameter einer in einem Speicher hinterlegten vorgegebenen thermalen Bedingung entspricht, und, falls der ermittelte Kontrollparameter nicht der vorgegebenen thermalen Bedingung entspricht, eine Meldung auszugeben und/oder einen vorzugsweise in einem Speicher in der Steuer- und/oder Regeleinrichtung (3) ausgebildeten Zähler (5) zu inkrementieren.

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15-10-2006 дата публикации

VERFAHREN ZUM BETRIEB EINER BRENNKRAFTMASCHINE

Номер: AT0000008632U1
Принадлежит:

Regeleinrichtung für eine Brennkraftmaschine mit einem Verdichter (2), insbesondere einem Turbolader, wobei zur Reduktion oder zur Verhinderung eines Pumpens des Verdichters (2) in einem Einlasstrakt der Brennkraftmaschine an mindestens einer Stelle ein Druck des zugeführten Brennstoff-Luft-Gemisches oder des zugeführten Brennstoffes oder der zugeführten Luft bestimmbar ist, wobei eine zeitliche Änderung des Druckes, vorzugsweise die erste zeitliche Ableitung (13) des Druckes, bestimmbar ist und bei Überschreitung eines vorgebbaren Grenzwertes (G) durch die bestimmte zeitliche Änderung des Druckes, vorzugsweise durch die erste zeitliche Ableitung (13) des Druckes, eine Maßnahme zur Reduktion oder zur Verhinderung des Pumpens des Verdichters (2) setzbar ist.

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04-03-2021 дата публикации

Safety control system and method for fuel-consuming apparatus

Номер: AU2019330769A1
Принадлежит:

A safety control system for a fuel-consuming apparatus includes a switching assembly. The switching assembly includes a first end electrically connected to a power source node, a second end electrically connected to an input power node of a fuel safety shutoff valve of the fuel -consuming apparatus, and one or more switch units serially connected between the first and second ends. Each of the switch units is configured to be switched on or off based on a corresponding one of one or more environmental conditions of the fuel-consuming apparatus. An electrical connection path between the first and second ends is deactivated upon at least one of the one or more switch units being switched off to stop supplying of fuel into the fuel-consuming apparatus.

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16-03-1995 дата публикации

Improvements relating to scavenged internal combustion engines

Номер: AUPN126195A0
Автор:
Принадлежит:

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23-12-1999 дата публикации

Fuel supply system for automotive engines

Номер: AU0000714302B1
Принадлежит:

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15-10-1991 дата публикации

VIBRATION RESISTANT RUPTURABLE PRESSURE RELIEF MEMBER

Номер: CA0001290642C

E.D. 141 A vibration resistant rupturable pressure relief member for protecting structure subject to vibration from reaching an overpressure condition. The rupturable pressure relief member is comprised of a rupture panel having an elongated concave-convex bulged portion formed therein and having a score pattern on a side thereof which includes an elongated score extending longitudinally across the bulged portion the ends of which connect with additional divergent scores forming opposing V-shapes.

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30-11-1976 дата публикации

Номер: CH0000582306A5
Автор:

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31-12-1963 дата публикации

Brennkraftmaschine

Номер: CH0000374247A

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29-02-1980 дата публикации

Injection valve for a turbocharger-washing device

Номер: CH0000615987A5
Принадлежит: SULZER AG, SULZER (GEBRUEDER) AG

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15-02-2007 дата публикации

Mechanism for the monitoring of a Verdichterrades.

Номер: CH0000696215A5
Автор: BUCHER JAKOB, BUCHER JAKOB

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29-11-2019 дата публикации

Electronic supercharger for automobile

Номер: CN0209704694U
Автор:
Принадлежит:

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19-07-2019 дата публикации

State quantity estimation device

Номер: CN0110036206A
Автор:
Принадлежит:

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07-08-2020 дата публикации

Turbine housing and method for cleaning turbine housing

Номер: CN0111512033A
Автор:
Принадлежит:

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02-02-2005 дата публикации

Turbocharged engine

Номер: CN0001573045A
Принадлежит:

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18-02-2015 дата публикации

Internal combustion engine and control method thereof

Номер: CN104364500A
Принадлежит:

In order to avoid a surge state of the compressor (5b) of a turbocharger (5), an ECU (20) is configured to be provided with a surge avoidance means (process) which, during vehicle deceleration, determines whether or not the compressor (5b) of the turbocharger (5) enters a surge state; if the compressor (5b) is determined to enter a surge state, then, as surge avoidance control, the surge avoidance means acquires a first target opening degree (TAn) of the nozzle vane (5c) of a turbine (5a) of the turbocharger (5) based on the driving state and a first opening degree map (M1); if the first target opening degree (TAn) is less than a pre-set surge avoidance first target opening degree (TAx), then the surge avoidance means controls the nozzle vane (5c) to the surge avoidance first target opening degree (TAx), and if the first target opening degree (TAn) is greater than or equal to the surge avoidance first target opening degree (TAx), controls the nozzle vane (5c) to the first target opening ...

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21-12-2016 дата публикации

The bearing housing of the turbocharger for cooling structure

Номер: CN0103582748B
Автор:
Принадлежит:

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17-11-2000 дата публикации

CAPACITIVE MEASURING EQUIPMENT

Номер: FR0002784179B1
Автор: GAY, KAYSER, GAGEANT

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11-05-2007 дата публикации

METHOD AND APPARATUS FOR MANAGING AN INTERNAL COMBUSTION ENGINE

Номер: FR0002851610B1
Автор: BAEUERLE
Принадлежит: ROBERT BOSCH GMBH

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10-05-2013 дата публикации

PROCEEDED OF DIAGNOSIS OF FAILURE Of an ENGINE OVERFEEDS AND DRIVING OVERFEEDS

Номер: FR0002974392B1
Автор: FONTVIEILLE LAURENT
Принадлежит: RENAULT S.A.S.

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29-05-2009 дата публикации

Supercharged internal combustion engine i.e. supercharged diesel engine, has air recirculation pipeline hooked on suction pipeline, where recirculation pipeline has outlet which is emerged in channels of part of suction pipeline

Номер: FR0002924170A1
Автор: AMMAR ALI
Принадлежит:

La présente invention concerne un moteur à combustion interne suralimenté comprenant un compresseur placé sur le trajet d'une conduite d'admission (1) dont une partie située en amont de l'entrée du compresseur est séparée intérieurement en au moins deux canaux (21, 22) parallèles, et une conduite de recirculation (9) piquée sur la conduite d'admission (1) de part et d'autre du compresseur, cette conduite de recirculation présentant une sortie qui débouche dans un des canaux (22) de ladite partie de la conduite d'admission.

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04-10-2019 дата публикации

Номер: KR0102028500B1
Автор:
Принадлежит:

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26-06-2012 дата публикации

Airline blocking system of CNG Engine

Номер: KR0101158814B1
Автор:
Принадлежит:

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16-08-2012 дата публикации

APPARATUS FOR BYPASS OF TURBOCHARGER

Номер: KR0101174564B1
Автор:
Принадлежит:

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30-09-2019 дата публикации

Номер: KR0101989544B1
Автор:
Принадлежит:

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12-10-2016 дата публикации

SUB-COOLING SYSTEM

Номер: KR101664731B1
Принадлежит: HYUNDAI MOTOR COMPANY

The present invention provides a sub-cooling system separately installed from an engine cooling flow channel in a vehicle equipped with a turbo engine, capable of enhancing fuel efficiency by improving knocking characteristics by cooling an exhaust gas recirculation (EGR) gas, comprising: a first line connecting a radiator and an intercooler and having an electric water pump installed to allow a coolant to flow from the radiator toward the intercooler; a second line connecting the intercooler and an intake manifold to allow the coolant to flow; a third line connecting the intake manifold and the radiator to allow the coolant to flow; and a bypass valve selectively transferring a coolant heated through a turbine housing positioned in a path of the third line directly to the radiator or transferring the heated coolant to the radiator through an engine block or a heater, wherein the coolant discharged from the intake manifold is supplied to an ETC to lower a temperature of intake air passing ...

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28-03-2008 дата публикации

AIR SUPPLY DEVICE FOR A VEHICLE IN WHICH A HEAT RADIATION PLATE IS ARRANGED IN A MOTOR ASSEMBLY TO COOL THE HEATER OF THE MOTOR ASSEMBLY

Номер: KR1020080027515A
Принадлежит:

PURPOSE: An air supply device for a vehicle is provided to improve accuracy by assembling a motor assembly to an inlet duct and an outlet duct and supporting a rotary shaft through the motor assembly. CONSTITUTION: An air supply device for a vehicle includes a motor assembly, an inlet duct(110), an impeller(180), an outlet duct(170), and an end plate(190). The motor assembly rotates a rotary shaft(120), and has an air flow channel(130a) formed through the top and bottom of the motor assembly. The inlet duct is joined onto the motor assembly, and guides air introduced through an inlet(111) to the air flow channel of the motor assembly. The impeller is joined beneath the rotary shaft, and compresses air by rotating together with the rotary shaft. The outlet duct is joined beneath the motor assembly and accommodates the impeller into the center thereof. The outlet duct has an opening(171) for guiding air passed through the air flow channel of the motor assembly toward the impeller, and a volute ...

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10-08-2006 дата публикации

TURBOMACHINE, PARTICULARLY EXHAUST GAS TURBOCHARGER IN WHICH WATER LEAKAGE IS PREVENTED IN BOTH TURBINE WHEEL DIRECTION AND BEARING CASE DIRECTION

Номер: KR1020060090197A
Принадлежит:

PURPOSE: A turbomachine is provided to achieve improved sealing of a chamber influenced by the affection of a medium including liquid pressure or air pressure. CONSTITUTION: A turbomachine(1) comprises a compressor wheel(3) arranged in a compressor housing; a turbine wheel(4) arranged in a turbine housing; a rotor shaft(6) which is guided in a bearing case(5), and has one side where the compressor wheel is fixed and the other side where the turbine wheel is fixed; and a rotor shaft sealing unit(8) which is interposed between a turbine side end(7) of the bearing case and the rotor shaft, and includes a counter ring and a biasing member fixed at the rotor shaft. A slide ring is interposed between the counter ring and the biasing member. The slide ring contacts the counter ring when installed. The slide ring is fixed by the biasing member and a sleeve inserted in the bearing case. © KIPO 2006 ...

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04-01-2017 дата публикации

COOLING DEVICE FOR TURBOCHARGER ACTUATOR

Номер: KR1020170000912A
Автор: LEE, WOO JIN
Принадлежит:

The present invention relates to a cooling device for a turbocharger actuator, which cools a turbocharger actuator without an additional energy loss with surrounding waste heat of the turbocharger actuator to realize a normal function without malfunction under a high temperature environment. According to an embodiment of the present invention, the cooling device for a turbocharger actuator comprises: a plurality of thermoelectric elements installed in a plurality of heat sources to convert waste heat to electric energy; and a cooling fan installed to be adjacent to an actuator to air-cool the actuator of a turbocharger, and operated by being supplied with the electric energy converted in the thermoelectric elements. COPYRIGHT KIPO 2017 ...

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06-08-2020 дата публикации

ENGINE SYSTEM

Номер: KR1020200093949A
Автор:
Принадлежит:

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15-12-2009 дата публикации

TURBOCHARGER HAVING A DEVICE FOR DETECTING A MALFUNCTION OF THE TURBOCHARGER AND A METHOD FOR DETECTING SUCH A MALFUNCTION

Номер: KR1020090128562A
Автор: KAUFMANN ANDRE, KOCH ACHIM
Принадлежит:

The turbocharger according to the invention having a device for detecting a malfunction of the turbocharger, particularly a malfunction of at least one bearing of the turbocharger comprises the following: The device for detecting a malfunction of the turbocharger comprises a memory device, in which the target operating states of an intact turbocharger are stored. The device for detecting a malfunction of the turbocharger further comprises a comparing device, in which the determined actual operating state of the turbocharger is compared to a corresponding target operating state of an intact turbocharger. The turbocharger further comprises a measuring device for determining an actual operating state of the turbocharger, wherein the device for detecting a malfunction of the turbocharger emits an error message if the comparing device detects that the actual operating stage deviates from the target operating state by a predefined measure. COPYRIGHT KIPO & WIPO 2010 ...

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17-06-2008 дата публикации

APPARATUS FOR SUPPLYING OIL TO A TURBOCHARGER, CAPABLE OF MAINTAINING THE ENDURANCE OF A TURBOCHARGER BY PREVENTING THE TURBOCHARGER FROM BEING DAMAGED

Номер: KR1020080054240A
Автор: HAN, JOUNG WAN
Принадлежит:

PURPOSE: An apparatus for supplying oil to a turbocharger is provided to prevent a turbocharger from being damaged by supplying oil to the turbocharger for a predetermined time during initial ignition of a vehicle provided with an exhaust gas turbocharger. CONSTITUTION: An apparatus for supplying oil to a turbocharger comprises an exhaust gas turbocharger(24) having an emergency oil tank(22). An oil reservoir(28) is installed at the bottom of the exhaust gas turbocharger and has a solenoid valve(26), which is opened and closed by an electric signal, at one side thereof. An oil pipe(30) is connected from the oil reservoir to the top end of the emergency oil tank. A vacuum pump(34) is connected with the exhaust gas turbocharger through a vacuum hose(32). An electronic control unit(36) detects ignition of an engine and operates the solenoid valve using an electric signal after the engine is ignited. © KIPO 2008 ...

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06-04-2012 дата публикации

TURBO DEVICE WITH AN ANTI SURGE VALVE, CAPABLE OF REDUCING NOISE GENERATED WHEN AIR CIRCULATES TO THE FRONT END OF A COMPRESSOR

Номер: KR1020120033114A
Принадлежит:

PURPOSE: A turbo device with an anti surge valve is provided to reduce noise generated between air and a blade rotating at high speed by adjusting the flow of air supplied to the blade of a compressor. CONSTITUTION: A turbo device with an anti surge valve comprises a compressor(130a) and an anti surge valve(100). The compressor is installed in a suction line in order to compress intake air. The anti surge valve is placed between the upper part and lower part of the compressor, the intake air circulates from the lower part to the upper part thereof. A path is formed in the anti surge valve. The intake air, which has flown in the intake line through the path, flows to the edge at the center of rotation of the blade of the compressor. COPYRIGHT KIPO 2012 ...

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10-10-2012 дата публикации

TURBOCHARGER, CAPABLE OF PREVENTING NOISE BY INCREASING THE VISCOSITY OF OIL DURING THE INITIAL STARTING OF AN ENGINE

Номер: KR1020120111328A
Принадлежит:

PURPOSE: A turbocharger is provided to prevent initial vibration and noise as the oil is heated by a heater during the initial starting of an engine. CONSTITUTION: A turbocharger comprises a turbine housing(10), a center housing(30), a compressor housing(20), a supply pipe(40), and a heater(50). The turbine housing accepts a turbine wheel(12). The center housing contacts with the turbine housing, and comprises an oil feed(32). The compressor housing contacts with the center housing, and comprises a compressor wheel. The supply pipe guides the oil to the oil feed. The heater heats the oil passing through the oil feed. COPYRIGHT KIPO 2013 ...

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21-12-2007 дата публикации

ENGINE WITH SUPERCHARGER

Номер: WO000002007145021A1
Принадлежит:

An engine (1) with a supercharger (40) comprises a compressor (41) having blades (45) on a turbine (42) shaft, and the turbine (42). At least one index (44) is provided on the turbine (42) shaft or the blade (45). A turbo angular velocity sensor (62) is provided to detect the rotation of the index (44) and the rotation of the blades (45), and the sensor is connected to an ECU (60). The engine (1) further includes a turbo angular velocity calculation means for receiving pulses per each rotation of the turbine shaft and calculating the angular velocity.

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08-12-2011 дата публикации

COMPRESSOR OF AN EXHAUST-GAS TURBOCHARGER

Номер: WO2011153021A2
Автор: WALTER, Norbert
Принадлежит:

The invention relates to a compressor (1) of an exhaust-gas turbocharger (ATL), having a compressor housing (3) which has a housing inlet connecting piece (20) and a noise ring (21). The noise ring (21) is arranged in the housing inlet connecting piece (20) and is provided, on its outer circumference (22), with a multiplicity of chambers (23, 24, 23', 24').

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19-06-1984 дата публикации

Safety control system for a turbocharged engine

Номер: US0004454718A1
Принадлежит: Aisin Seiki Kabushiki Kaisha

In a turbocharged, carbureted internal combustion engine, a safety control system including a vacuum motor responsive to vacuum created in one barrel of the carburetor to control fluid flow through a second barrel in the carburetor and a vacuum control valve responsive to turbocharger output fluid pressure for communicating air at atmospheric pressure to the vacuum motor to reduce fluid flow through the second barrel of the carburetor when the output fluid pressure exceeds a predetermined level.

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03-09-1991 дата публикации

Control system for internal combustion engine with supercharger

Номер: US0005044162A1
Принадлежит: Mazda Motor Corporation

Control system for engine comprising supercharger for supercharging an intake gas introduced into the engine, pressure detector for detecting a supercharging pressure of the intake gas, supercharging pressure control device for controlling the supercharging pressure to a first predetermined pressure provided in accordance with engine operating condition, engine output control device for controlling an engine output other than the supercharging pressure control device. The engine output is restricted by the engine output control device when the pressure is increased beyond a second predetermined pressure which is greater than the first predetermined pressure. The second predetermined pressure is increased as the first predetermined pressure is increased for an improved supercharging pressure control.

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03-07-2001 дата публикации

Device for controlling boost pressure in an internal combustion engine

Номер: US0006253551B1

An arrangement includes a first controller which is only switched through to an actuator for a turbocharger if a fault recognition device detects no fault in the operation of the engine. A switchover is made from the first controller to a second controller, if the fault recognition device detects a critical fault. In this connection, the second controller receives a system deviation as an input signal that is different from the one received by the first controller. Thus in the event of a fault, the turbocharger can be controlled in a very flexible manner without the danger that the speed of the turbocharger is increased into its critical range.

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01-07-1986 дата публикации

Control system for air charge pressure in an internal combustion engine

Номер: US0004597265A
Автор:
Принадлежит:

The air charge pressure sensor of the control system for a turbo supercharger of an internal combustion engine measures absolute charge pressure, but is used, in the idling condition of the engine, to measure atmospheric pressure, which is stored when the engine is idling for deriving the relative charge pressure for the control system.

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30-09-2014 дата публикации

Anti-sticking and diagnostic strategy for exhaust system valves

Номер: US0008849548B2

An engine system includes an exhaust system fluidly connected to an electronically controlled engine. Exhaust from the engine may travel a first pathway through a turbine of a turbocharger, or a second pathway that bypasses the turbine. An electronically controlled wastegate vale is biased to close the second pathway. An electronic controller is in communication with the electronically controlled engine and the electronically controlled wastegate valve. The electronic controller is configured to execute a wastegate diagnostic algorithm to detect a stuck closed default condition of the electronically controlled wastegate valve, and derate the engine in response to detection of a stuck closed fault condition.

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13-12-2018 дата публикации

SURGING DETECTION METHOD AND SURGING DETECTION DEVICE FOR TURBOCHARGER

Номер: US20180355876A1

A method of detecting surging in a turbocharger provided for an internal combustion engine, includes: a first characteristic quantity calculation step of calculating a first characteristic quantity in at least one first frequency region corresponding to at least one first peak frequency component unique to the time of occurrence of surging in the turbocharger on the basis of a time-variable waveform indicating a time-series change of a rotation speed of the turbocharger; a second characteristic quantity calculation step of calculating a second characteristic quantity in a second frequency region including the at least one first frequency region on the basis of the time-variable waveform; and a detection step of detecting surging in the turbocharger on the basis of a relationship between the first characteristic quantity and the second characteristic quantity. The second frequency region further includes at least one second peak frequency unique to the time of acceleration and deceleration ...

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22-07-2014 дата публикации

Variable geometry turbine

Номер: US8784039B2

A variable geometry turbine comprising: a housing; a turbine wheel supported within said housing for rotation about a turbine axis; an annular inlet passage within said housing upstream of said turbine wheel and defined between respective radial inlet surfaces of first and second wall members; an outlet passage within said housing downstream of said turbine wheel; an array of vanes extending across the inlet passage, said vanes being connected to said first wall member; at least one of said first and second wall members being moveable along the turbine axis to vary the size of the inlet passage and/or at least one of said vanes being rotationally moveable about an axis that is substantially parallel to said turbine axis to vary the size of the inlet passage; wherein at least one particulate filter is provided within said housing at a location such that said particulate filter can be contacted by particulate matter flowing through said turbine during use.

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02-08-2022 дата публикации

Gas heat pump system

Номер: US0011402133B2
Принадлежит: LG ELECTRONICS INC.

The present invention relates to a gas heat pump system. A gas heat pump system according to one embodiment of the present invention comprises: a compressor for compressing a refrigerant; a gas engine for driving the compressor; a mixer for mixing air and fuel to generate a mixed gas to be supplied to the gas engine; a mixed gas supply line connected between the mixer and the gas engine; and a supercharger for supercharging the mixed gas supplied to the gas engine through the mixed gas supply line, wherein the supercharger comprises a sealed housing formed by sealing the remaining parts thereof other than an inlet port and an outlet port through which the mixed gas moves into and out of the housing, and a bypass line is provided between the sealed housing and the inlet port of the supercharger so as to resupply a mixed gas in the sealed housing to the inlet port of the supercharger. Therefore, the system can prevent a safety-related accident resulting from the leakage of the mixed gas out ...

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29-12-2010 дата публикации

SUPERCHARGER CONTROLLER FOR INTERNAL-COMBUSTION ENGINE

Номер: EP2267284A1
Автор: IWATANI, Kazuki
Принадлежит:

A first and a second supercharger are arranged in parallel with each other on an intake air passage and an exhaust passage. At least one of the first and the second superchargers includes a variable supercharging mechanism. The control unit determines a target air amount ratio of the first and the second superchargers, and controls the variable supercharging mechanism such that an actual air amount ratio of the first and the second superchargers becomes equal to the target air amount ratio. The air amount ratio which does not cause the surge in the first and the second superchargers is set as the target air amount ratio, and the variable supercharging mechanism is controlled by using it as a target.

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19-08-2009 дата публикации

ELEMENT WHICH GENERATES A MAGNETIC FIELD

Номер: EP2089617A1
Принадлежит:

Подробнее
13-04-2011 дата публикации

Abnormality-determining device for turbo-supercharger

Номер: EP2309111A1
Принадлежит:

An abnormality-determining device for a turbosupercharger, which properly decides whether or not to execute the abnormality determination of variable vanes during a time period from the start of an internal combustion engine until the variable vanes become non-stuck, thereby being capable of preventing a turbosupercharger and devices of an exhaust system from becoming faulty, and at the same time is capable of improving drivability. The abnormality-determining device determines whether or not the variable vanes are abnormal, and at the same time determines whether or not the variable vanes are non-stuck. Further, during the time period after the start of the engine until it is determined that the variable vanes are non-stuck, the abnormality-determining device determines whether or not to execute abnormality determination of the variable vanes based on a relationship between the detected boost pressure and the set target boost pressure.

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06-09-2017 дата публикации

SUPERCHARGER AND ENGINE WITH SAME

Номер: EP3214287A1
Принадлежит:

A turbocharger 1 is provided with: a turbine shaft supported by bearings (28, 29) and having one end connected to a compressor impeller (19); a bearing pedestal (5) for receiving the turbine shaft; an oil tank (35) provided to the bearing pedestal (5); a bearing oil passage (36) for connecting the oil tank (35) and the bearings (28, 29); an impeller cooling channel (44) formed within the bearing pedestal (5) and located on the rear surface side of the compressor impeller (19); and a cooling oil supply passage (47) for connecting the impeller cooling channel (44) and the oil tank (35). Inside the oil tank (35), the height (H2) of the inlet opening (47a) of the cooling oil supply passage (47) is greater than the height (H1) of the inlet opening (36a) of the bearing oil passage (36).

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23-11-2016 дата публикации

Methods and devices used for automatically controlling speed of an expander

Номер: EP2447629B1
Автор: Rossi, David
Принадлежит: Nuovo Pignone S.p.A.

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15-01-2003 дата публикации

IC engine-turbocharger unit for a motor vehicle, in particular an industrial vehicle, with turbine power control

Номер: EP0001275833A1
Принадлежит:

An engine-turbocharger unit (1) for a vehicle, in particular an industrial vehicle, having an internal combustion engine (2); a decompression brake device (6); and a turbocharger (3) in turn having a variable-geometry turbine (7) driven by the exhaust gas from the engine (2), and a compressor (8) driven by the turbine (7) and connected at the outlet to an intake manifold (4) of the engine (2); the unit (1) also has a throttling device (21) located on the outlet side of the turbine (7) and settable between a fully-open attitude and a closed attitude; the variable-geometry turbine (7) and the throttling device (21) are jointly controlled, thereby allowing independent control of the exhaust manifold pressure (Pi) of the combustion engine (2) and of the expansion ratio (Pi/Pu) of the turbine (7).

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16-11-1992 дата публикации

Номер: JP0004125636U
Автор:
Принадлежит:

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28-12-2006 дата публикации

EXHAUST-DRIVEN SUPERCHARGER OF INTERNAL COMBUSTION ENGINE

Номер: JP2006348940A
Автор: SPENGLER MICHAEL
Принадлежит:

PROBLEM TO BE SOLVED: To provide an exhaust-driven supercharger of an internal combustion engine comprising a turbine expanding an exhaust gas flow from the engine of the internal combustion engine and a compressor for compressing a combustion air flow to be supplied to the engine of the internal combustion engine, and having an inlet chamber 10 formed as a bend to introduce the exhaust gas flow to be expanded in the turbine into a turbine rotor, and a washing nozzle installed in the inlet chamber 10 to supply a washing medium to the inlet chamber 10 at a low engine load operating point. SOLUTION: The washing nozzle is disposed on a line or a straight line aligned with the rotating axis 14 of the turbine rotor. COPYRIGHT: (C)2007,JPO&INPIT ...

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16-12-1992 дата публикации

Номер: JP0004053561Y2
Автор:
Принадлежит:

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06-04-1988 дата публикации

Номер: JP0063051123U
Автор:
Принадлежит:

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14-07-2010 дата публикации

Номер: JP0004502277B2
Автор:
Принадлежит:

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03-10-2000 дата публикации

Номер: JP0003094189B2
Автор:
Принадлежит:

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13-04-1994 дата публикации

Номер: JP0006014035Y2
Автор:
Принадлежит:

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29-08-1983 дата публикации

METHOD OF PREVENTING SEIZURE OF TURBOCHARGER

Номер: JP0058144646A
Принадлежит:

PURPOSE: To prevent seizure of a turbocharger shaft, by increasing the engine speed to a prescribed reference speed by controlling an idle-speed control means by a control valve when the engine speed is lower than said prescribed reference speed during idling operation after high-speed, high-load operation of an engine. CONSTITUTION: A turbocharger 1 supercharges combustion air to a combustion chamber 25 by carrying exhaust gas produced in the combustion chamber 25 to a turbine impeller 3 from an exhaust manifold 6 and thereby turning the impeller 3 and a compressor impeller 2. Here, output signals of a vehicle-speed sensor 21, an air-flow meter 22, a rotational angle sensor 23 and a throttle sensor 24 are furnished to an ECU (engine control unit) 20. With such an arrangement, in case that it is detected that the engine speed is lower than a prescribed reference speed at the time of idling operation after high-load or high- speed operation of an engine, the engine speed is controlled to ...

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13-12-1989 дата публикации

Номер: JP0001042719Y2
Автор:
Принадлежит:

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25-12-1989 дата публикации

Номер: JP0001044744Y2
Автор:
Принадлежит:

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31-05-2002 дата публикации

METHOD AND DEVICE FOR CONTROLLING EXHAUST TURBINE SUPERCHARGER

Номер: JP2002155752A
Автор: USHIKUBO SATOSHI
Принадлежит:

PROBLEM TO BE SOLVED: To prevent an exhaust turbine supercharger from overrunning when a trouble occurs in he EGR valve control while the engine is operated in the medium-high load region with reduced supercharging pressure. SOLUTION: The device has an EGR controller 3 controlled by an engine controller 1, and EGR actuator 5 to control an EGR valve by the EGR controller 3, an exhaust turbine controller 2 controlled by the engine controller 1, and an actuator 6 of an exhaust turbine rotational frequency controller to control the exhaust turbine by an exhaust turbine controller 4. When a trouble occurs in controlling the EGR valve when the engine is operated with reduced supercharging pressure, the excess rotation of the exhaust turbine is controlled by the trouble detection signal. COPYRIGHT: (C)2002,JPO ...

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16-10-2018 дата публикации

СИСТЕМА ЗАЩИТЫ БЛОКА ТУРБОНАДДУВА, ТРАНСПОРТНОЕ СРЕДСТВО, СОДЕРЖАЩЕЕ ТАКУЮ СИСТЕМУ И СПОСОБ ЗАЩИТЫ БЛОКА ТУРБОНАДДУВА

Номер: RU2669889C2

Изобретение может быть использовано в двигателях внутреннего сгорания. Система защиты блока турбонаддува предназначена для предотвращения повреждения при недостаточном давлении смазочного масла. Система защиты блока турбонаддува содержит первые средства перепуска выхлопного газа, управляемые в зависимости от давления смазочного масла в блоке турбонаддува и предназначенные для обеспечения перепуска по меньшей мере части указанных выхлопных газов в обход турбины, когда указанное давление ниже первого заданного значения. Блок турбонаддува содержит смазочный контур. Средства перепуска содержат клапан минимального давления с приводным входом, функционально соединенным со смазочным контуром. Система дополнительно содержит вторые средства перепуска выхлопных газов, управляемые в зависимости от давления воздуха, измеряемого в соответствующем впускном коллекторе, и содержащие регулятор давления наддува. Первые и вторые средства перепуска содержат общую обводную трубу. Регулятор (166) давления наддува ...

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20-10-2012 дата публикации

ВЗРЫВОБЕЗОПАСНАЯ СИЛОВАЯ УСТАНОВКА

Номер: RU2464430C2

Изобретение может быть использовано в силовых установках, содержащих двигатель внутреннего сгорания с электрической системой управления. Силовая установка содержит двигатель внутреннего сгорания с электрическим управлением. Двигатель внутреннего сгорания снабжен турбонагнетателем, размещенным в первом кожухе с герметизированными вводами и выводами всех соединений. Турбонагнетатель погружен в охлаждающую жидкость, которая протекает через первый кожух. Первый кожух прикреплен к коллектору системы выпуска отработавших газов с жидкостным охлаждением для получения из него охлаждающей жидкости. Двигатель внутреннего сгорания снабжен дополнительно устройством обработки отработавших газов, сообщающимся с выпускным отверстием турбонагнетателя для получения из него газов. Устройство обработки отработавших газов размещено во втором кожухе, имеющем двойную стенку, в которую поступает охлаждающая жидкость из первого кожуха. Охлаждающая жидкость протекает между внешним слоем и внутренним слоем двойной ...

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30-03-2022 дата публикации

Способ экспресс-диагностирования турбокомпрессора дизельного двигателя

Номер: RU2769291C2

Изобретение относится к испытаниям турбокомпрессоров, используемых для наддува дизельных двигателей. Способ испытания турбокомпрессора заключается в том, что на двигателе монтируют комплект измерительных приборов устройства экспресс-диагностирования турбокомпрессора, в котором введен массив эталонных данных, необходимых для формирования показателей оценочных критериев, отсоединяют фильтр очистки воздуха, производят пуск двигателя, обеспечивают его прогрев, измеряют давление 1 наддувочного воздуха после компрессорной части турбокомпрессора (Рк1), давление 4 газов в картере двигателя (Ркг1), температуру 2 наддувочного воздуха после компрессорной части турбокомпрессора (Тк1), температуру 3 отработавших газов на входе в турбинную часть турбокомпрессора (Тт1), затем перемещают орган управления топливоподачи в положение максимальной подачи с заданным темпом, начало перемещения органа топливоподачи является началом временного отсчета измерений (t1). В момент, когда давление наддувочного воздуха ...

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19-01-2012 дата публикации

Method and device for determining the pressure upstream from the turbine of a supercharging turbocharger of a thermal engine

Номер: US20120016602A1
Принадлежит: RENAULT SAS

A method for determining, in a turbocharger for supercharging a thermal engine including a turbine and a compressor, the pressure upstream from the turbine based on the inlet air flow, the pressure upstream from the compressor, the temperature upstream from the compressor, the pressure downstream from the compressor, the temperature upstream from the turbine, and the pressure downstream from the turbine.

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22-03-2012 дата публикации

Torque limiting engine lubrication protection system

Номер: US20120067327A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A lubrication torque limit module includes a temperature module that determines a temperature of an engine and generates an engine temperature signal. A limit module generates a torque limit signal based on the temperature signal and a speed of the engine. The torque limit signal identifies an indicated torque maximum limit. A torque arbitration module limits indicated torque of the engine based on the indicated torque maximum limit. The indicated torque of the engine is equal to an unmanaged brake torque of the engine plus an overall friction torque of the engine.

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03-05-2012 дата публикации

Method for controlling the speed of an internal combustion engine supercharged by means of a turbocharger

Номер: US20120109491A1
Автор: Marco Panciroli
Принадлежит: Individual

A method controls a supercharged internal-combustion engine and comprises steps of: establishing predetermined lower-limit and higher-limit speeds (PLLS, PHLS) of a turbocharger; calculating a reduced lower-limit speed (RLLS) according to the PLLS and an absolute temperature upstream of a compressor; calculating a reduced higher-limit speed (RHLS), according to the PHLS and temperature, higher than the RLLS; determining an “over-speed” interval (OSI) between the RRLS and RHLS; calculating a current reduced-limit speed (CRLS); controlling the turbocharger to bring the CRLS back to no greater than the RLLS every time the CRLS is detected and within the OSI; establishing in a preliminary adjustment and set-up phase a threshold value; and controlling the turbocharger to bring the CRLS back to no greater than the RLLS after a time interval, which is equal to the threshold value, has elapsed from a moment in which the CRLS is detected and within the OSI.

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10-05-2012 дата публикации

Turbocharger overheating protection device and method of its manufacture

Номер: US20120110997A1
Принадлежит: HERAEUS SENSOR TECHNOLOGY GMBH

A housing between mineral-insulated cable and connecting wire in a turbocharger overheating protection device may include the following characteristics: coiled regions of springs ( 10 ) arranged point-symmetrically to each other; or the springs ( 10 ) are not placed on axes; or the coil regions of the coil springs ( 10 ) for cushioning the film resistor are shorter than its substrate length and longer than its substrate width; or the connecting wires of the film resistor are shorter than its substrate length and longer than its substrate width; or the springs are arranged staggered in their longitudinal direction adjacent to each other; or coil springs ( 10 ) are used, in which the coils are located only in one half of the spring ( 10 ) and the coils of one spring are arranged staggered in the longitudinal direction to the coils of the other spring ( 10 ).

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05-07-2012 дата публикации

Engine Idle Speed and Turbocharger Speed Control

Номер: US20120173123A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Various methods are described for controlling engine operation for an engine having a turbocharger and direction injection. One example method includes performing at least a first and second injection in response to a driver action. The first and second injection may be performed during a cylinder cycle, the first injection generating a lean combustion and the second injection injected after combustion such that it exits the cylinder unburned into the exhaust upstream of a turbine of the turbocharger.

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12-07-2012 дата публикации

Control device for turbocharged engine

Номер: US20120179356A1
Принадлежит: Mitsubishi Heavy Industries Ltd

An object of the present invention is to provide a control device for a turbocharged engine capable of accurately estimating the revolution speed of a turbine without using additional components for directly detecting the turbine revolution speed, and by accurately estimating the turbine revolution speed, capable of accurately keeping the turbine revolution speed at an allowed value or below and preventing excessive rotation. The control device for a turbocharged engine includes a turbocharger having a compressor disposed in an intake passage of an engine, and a turbine disposed in an exhaust passage of the engine, a fuel injection amount control unit for controlling a fuel injection amount to the engine according to an operating state of the engine, and a turbine revolution speed estimation unit for determining by calculations an estimated value of a revolution speed of the turbine from the operating state of the engine. When the estimated value of the turbine revolution speed exceeds a predetermined allowed value, the fuel injection control unit controls the fuel injection amount such that the estimated value of the turbine revolution speed becomes equal to or less than the allowed value.

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16-08-2012 дата публикации

Method for controlling the operation of a compressor

Номер: US20120204560A1
Автор: Jon Dixon
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for controlling a compressor of a turbocharger is disclosed. In one example, the method comprises varying a maximum permitted compressor outlet temperature based upon a function of compressor outlet temperature and operating time, and controlling the operation of the compressor so that the maximum permitted compressor outlet temperature is not exceeded. In this way a higher boost pressure can safely be used during the early life of the compressor but excessive coking of the compressor with a resultant loss of efficiency later in the life of the compressor is reduced.

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23-08-2012 дата публикации

Method for operating a turbocharger arrangement and control unit for a turbocharger arrangement

Номер: US20120210710A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for operating a turbocharger arrangement of an internal combustion engine, the turbocharger arrangement comprising a low-pressure and a high-pressure turbocharging stage arranged sequentially, the low-pressure turbo-charging stage comprising a low-pressure turbine with a sensorless low-pressure turbine bypass valve, is provided. The method comprises evaluating at least one sensor signal of the turbocharger arrangement for detecting a failure mode of the sensorless low-pressure turbine bypass valve. In this way, the low-pressure turbine bypass valve may be monitored for degradation without utilizing a position sensor.

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25-10-2012 дата публикации

Method for managing the automatic stoppage of an automobile

Номер: US20120271535A1
Принадлежит: RENAULT SAS

A method including: a) determining a value representative of temperature of exhaust gases flowing in an exhaust duct of an engine upstream from a turbine; b) comparing the representative value with a predetermined threshold value; c) if the representative value is higher than the threshold value, initiating timing-out of a first time delay during which a) and b) are repeated; d) if the representative value is lower than the threshold value, initiating the timing-out of a second time delay during which a) and b) are repeated; e) if the first time delay has elapsed and the representative value is higher than the threshold value, preventing the automatic stoppage of the engine; f) if the second time delay has elapsed and the representative value is lower than the threshold value, authorizing the automatic stoppage of the engine and resetting the measure of the timing-out of the first time delay.

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14-11-2013 дата публикации

Control device for internal combustion engine with supercharger

Номер: US20130304355A1
Автор: Kiyonori Takahashi
Принадлежит: Toyota Motor Corp

An object of the present invention is to prevent hunting of a throttle in a region in which a throttle upstream pressure and a throttle downstream pressure become substantially equal to each other in an internal combustion engine with a supercharger. For this purpose, a control device for an internal combustion engine with a supercharger provided by the present invention processes a signal of a throttle opening which is calculated by using a formula of throttling when a ratio of the throttle upstream pressure and the throttle downstream pressure has a value close to 1, and controls an operation of the throttle with the throttle opening the change speed of which is lessened as a target throttle opening.

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09-01-2014 дата публикации

SYSTEM AND METHOD FOR FAULT DIAGNOSIS IN FUEL INJECTION SYSTEM

Номер: US20140012484A1
Принадлежит: CATERPILLAR INC.

A method for fault diagnosis in a fuel injection system having first and second fuel injectors. The method includes initiating a current flow in the first and second fuel injectors. Further, a rise duration of the current flow to reach a threshold level is measured. The method further includes comparing the rise duration and a preset duration. The fuel injection system is controlled based on the comparison. 1. A method for fault diagnosis in a fuel injection system having first and second fuel injectors , the method comprising:initiating a current flow in the first and second fuel injectors;measuring a rise duration of the current flow from the first and second fuel injectors, to reach a threshold level;comparing the rise duration and a preset duration; andcontrolling the fuel injection system based at least on the comparison.2. The method of claim 1 , wherein the current flow is initiated in the first and second fuel injectors claim 1 , for a preselected time.3. The method of further includes generating a fault signal indicative of a short-circuited fuel injector from the first and second fuel injectors claim 1 , based on the comparison.4. The method of claim 3 , wherein the fault signal is generated when the rise duration is greater than the preset duration.5. The method of claim 3 , wherein the fault signal is generated when the rise duration is greater than the preset duration by more than a tolerance limit.6. The method of claim 1 , wherein controlling the fuel injection system includes opening the first and second fuel injectors claim 1 , in response to the fault signal.7. A control system for fault diagnosis in a fuel injection system having first and second fuel injectors claim 1 , the control system comprising:a first module configured to initiate current flow in the first and second fuel injectors;a second module configured to measure a rise duration of the current flow, from the first and second fuel injectors, to reach a threshold level;a third module ...

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20-02-2014 дата публикации

COMBUSTION ENGINE AND METHOD FOR OPERATING A COMBUSTION ENGINE HAVING A DISCHARGE LINE FOR CONDENSATION WATER FROM THE INDUCTION TRACT

Номер: US20140048050A1
Автор: Pfab Christian
Принадлежит: Audi AG

A method for operating a combustion engine comprising charging and charge air cooling, wherein in a critical operating state the charge air volume flow through a charge air cooler is adjusted and/or temporally changed by means of at least one charge air cooler valve in such a manner that condensation water present in the charge air cooler and/or in the subsequent induction tract is fed only in harmless quantities successively into the combustion chamber and is thus discharged. The invention further relates to a combustion engine that can be operated according to the method 110.-. (canceled)11. A method for operating a combustion engine with charge and charge air cooling , comprising adjusting or changing over time a charge air volume flow through a charge air cooler by means of at least one charge air cooler valve in a critical operating state so that condensation water present in the charge air cooler and/or in an induction tract downstream of the charge air cooler is gradually fed in harmless amounts into a combustion chamber of the combustion engine and discharged.12. The method of claim 11 , wherein the critical operating state of the combustion engine includes a cold start phase of the combustion engine.13. The method of claim 12 , further comprising dividing the charge air volume flow into a partial volume flow through the charge air cooler and a partial volume flow through a bypass claim 12 , with the partial volume flow through the bypass being separately settable and/or changeable over time with at least one bypass valve.14. The method of claim 13 , wherein the charge air cooler valve and the bypass valve are controlled and/or regulated by a control device.15. The method of claim 14 , wherein the charge air cooler valve and optionally the bypass valve are controlled or regulated as a function of measuring values of at least one temperature sensor which is arranged in a region of the charge air cooler or in the downstream induction tract.16. The method of ...

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07-01-2016 дата публикации

BEARING PLATE BLEED PORT FOR ROOTS-TYPE SUPERCHARGERS

Номер: US20160003129A1
Принадлежит:

A Roots-type supercharger includes a housing a first rotor a second rotor an outlet volume a transfer volume and a bleed port The housing includes an interior chamber an inlet port and an outlet port The first rotor and the second rotor have a plurality of lobes respectively. The outlet volume is substantially bounded between the outlet port, the first rotor, the second rotor, and the interior chamber of the housing. The transfer volume is substantially bounded between the first rotor, the second rotor, and the interior chamber of the housing. The bleed port is adapted to fluidly connect the outlet volume and the transfer volume at least during a portion of a transfer volume cycle. The variable bleed port may include a plate that pivots about a pivot or slides along a slide. The plate may be arc shaped and may arc around a centerline of one of the rotors. The plate may be positioned within an operating cavity. The operating cavity may be defined within the housing between a bearing plate and a main housing of the housing. A method of supercharging an internal combustion engine includes bleeding a transfer volume to an outlet volume through a bleed port. 1100. A Roots-type supercharger comprising:{'b': 120', '130', '140', '150, 'a housing including an interior chamber , an inlet port , and an outlet port ;'}{'b': 200', '210, 'a first rotor with a plurality of lobes ;'}{'b': 300', '310, 'a second rotor with a plurality of lobes ;'}{'b': '400', 'an outlet volume substantially bounded between the outlet port, the first rotor, the second rotor, and the interior chamber of the housing;'}{'b': '500', 'a transfer volume substantially bounded between the first rotor, the second rotor, and the interior chamber of the housing; and'}{'b': 600', '600, 'a bleed port , ′ adapted to fluidly connect the outlet volume and the transfer volume at least during a portion of a transfer volume cycle.'}2160152. The Roots-type supercharger of claim 1 , wherein the housing includes a first ...

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07-01-2016 дата публикации

SYSTEM FOR ESTIMATING EXHAUST MANIFOLD TEMPERATURE

Номер: US20160003180A1
Принадлежит:

A system for estimation of exhaust gas temperature for internal combustion engine at low operating temperatures allows determination of when use of exhaust gas temperature sensor measurements is allowable for engine diagnostic. One approach implements a physical model of pressure and temperature drops across a dual stage waste-gated turbo-charger along with modifiers based on current operating conditions to estimate the temperature in the exhaust manifold. Another models combustion to estimate the temperature in the exhaust manifold. 1. An apparatus for estimating exhaust gas temperature from an internal combustion engine having an exhaust system , an induction system and an exhaust gas recirculation system , the apparatus comprising:a plurality of engine sensors providing values for operating variables of the internal combustion engine, a plurality of exhaust system sensors providing values for operating variables of the exhaust system, a plurality of induction system sensors providing values for operating variables of the induction system and at least a first sensor providing values for an operating variable relating to operation of the exhaust gas recirculation system;a source of a torque demand signal; anddata processing means connected to receive data from the engine sensors, the induction system sensors, the exhaust system sensors, the at least first sensor for the exhaust gas recirculation system and the torque demand signal, providing for selection from at least two differentiated sets of sensors from which to calculate estimates of gas temperature in an exhaust manifold for the exhaust system and providing the estimates.2. The apparatus according to claim 1 , wherein a set of sensors is selected to implement a combustion model for exhaust gas temperature.3. The apparatus according to claim 2 , further comprising:the set of sensors selected to implement the combustion model includes sensors for measuring intake air mass flow sensor and a sensor relating to ...

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02-01-2020 дата публикации

Energy Saving Device for Internal Combustion Engine

Номер: US20200003138A1
Автор: Cheng Ming-Hung
Принадлежит:

An energy saving device includes a control box, a battery, an operation setting system, a car speed sensor assembly, and an air intake fan motor. Thus, the IC chip of the car speed sensor assembly identifies the car speed information detected by the five car speed sensors of the car speed sensor assembly, and transmits the car speed information to the IC circuit board of the control box, and the IC circuit board controls and regulates the rotation speed of the air intake fan motor according to the grades of the car speed preset by the operation setting system, such that the rotation speed of the air intake fan motor increases the air flow rate by a grade when the car speed is increased by a predetermined constant value. 1. An energy saving device comprising:a control box, a battery, an operation setting system, a car speed sensor assembly, and an air intake fan motor;wherein:the control box includes an IC circuit board which is electrically connected with the battery, the operation setting system, the car speed sensor assembly, and the air intake fan motor;the battery is electrically connected with the IC circuit board of the control box, to provide an electric power to actuate the air intake fan motor;the operation setting system is electrically connected with the IC circuit board of the control box, and includes an operation setting monitor which presets a plurality of grades according to a car speed and an air flow rate of the air intake fan motor;the car speed sensor assembly includes a first car speed sensor for a car propeller shaft, a second car speed sensor for an ABS brake system, a third car speed sensor for an EBS brake system, a fourth car speed sensor for a PDF spark ignition system, and a fifth car speed sensor for a GPS;the car speed sensor assembly is provided with an IC chip which is electrically connected with the IC circuit board of the control box;the IC chip of the car speed sensor assembly identifies a car speed information detected by the ...

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02-01-2020 дата публикации

TECHNIQUES FOR MEASURING FUEL INJECTOR FLOW IRREGULARITY WITHOUT REMOVAL FROM VEHICLE

Номер: US20200003144A1
Автор: Faied Louai
Принадлежит:

Diagnostic systems and methods for a fuel system of an engine of a vehicle utilize a fuel rail pressure sensor, an engine speed sensor, an exhaust oxygen (O2) sensor, and a controller configured to perform a diagnostic routine for the fuel system during which fuel injectors of the fuel system do not need to be removed from the engine. The diagnostic routine comprises operating the engine at a set of predetermined operating points and detecting one or more malfunctions of one or more of the fuel injectors based on measured fuel rail pressure, measured engine speed, and measured O2 concentration at each of the set of predetermined operating points. Any fuel injector malfunctions detected during the diagnostic routine could be output to a diagnostic device operated by a human technician, e.g., in a single diagnostic report. 1. A diagnostic system for a fuel system of an engine of a vehicle , the diagnostic system comprising:a fuel rail pressure sensor configured to measure a fuel rail pressure indicative of a pressure of a fuel in a fuel rail of the fuel system, wherein the fuel rail provides the fuel to fuel injectors of the fuel system;an engine speed sensor configured to measure an engine speed indicative of a rotational speed of a crankshaft of the engine;an exhaust oxygen (O2) sensor configured to measure an O2 concentration indicative of an oxygen level of exhaust gas produced by the engine; and operating the engine at a set of predetermined operating points; and', 'detecting one or more malfunctions of one or more of the fuel injectors while the one or more fuel injectors remain installed on the engine based on the measured fuel rail pressure, the measured engine speed, and the measured O2 concentration at each of the set of predetermined operating points., 'a controller configured to perform a diagnostic routine for the fuel system during which the fuel injectors do not need to be removed from the engine, the diagnostic routine comprising2. The system of claim ...

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07-01-2021 дата публикации

ROTATING BODY AND TURBOCHARGER

Номер: US20210003068A1
Автор: UNEURA Yutaka
Принадлежит: IHI CORPORATION

Provided is a rotating body, including: a shaft; an impeller (compressor impeller) having an insertion hole, which passes through the impeller in an axial direction of the shaft and is configured to receive one end side of the shaft inserted therethrough; an axial-end hole, which is formed in the shaft, is opened at one end of the shaft, and extends to a radially inner side of the insertion hole in the axial direction of the shaft; a radial-expansion member arranged in the axial-end hole; and a tubular wall portion, which forms the axial-end hole, and is configured to press an inner peripheral surface of the insertion hole. 1. A rotating body , comprising:a shaft;an impeller having an insertion hole, which passes through the impeller in an axial direction of the shaft, and is configured to receive one end side of the shaft inserted therethrough;an axial-end hole, which is formed in the shaft, is opened at one end of the shaft, and extends to a radially inner side of the insertion hole in the axial direction of the shaft;a radial-expansion member arranged in the axial-end hole; anda tubular wall portion, which forms the axial-end hole, and is configured to press an inner peripheral surface of the insertion hole.2. The rotating body according to claim 1 , further comprising a cutout portion claim 1 , which is formed in the tubular wall portion claim 1 , and extends in the axial direction from the one end.3. The rotating body according to claim 1 , wherein the radial-expansion member has a tapered portion claim 1 , which becomes thinner as extending toward a bottom portion of the axial-end hole and is configured to press an inner peripheral surface of the axial-end hole.4. The rotating body according to claim 2 , wherein the radial-expansion member has a tapered portion claim 2 , which becomes thinner as extending toward a bottom portion of the axial-end hole and is configured to press an inner peripheral surface of the axial-end hole.5. The rotating body according to ...

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07-01-2021 дата публикации

DYNAMIC CONTROL OF AN AIR HANDLING SYSTEM FOR VEHICLE ACCELERATION PERFORMANCE

Номер: US20210003083A1
Автор: BELLINGER Steven M.
Принадлежит:

System, apparatus, and methods are disclosed for improving vehicle acceleration performance. One or more devices of the internal combustion engine system are controlled in response to a torque transition event indicator and/or one or more vehicle acceleration event indicators indicating a vehicle acceleration event is imminent to improve vehicle response during acceleration.

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12-01-2017 дата публикации

SYSTEM AND METHOD FOR FLOWING A MIXTURE OF COOLANTS TO A CHARGE AIR COOLER

Номер: US20170009642A1
Принадлежит:

Methods and systems are provided for flowing a first coolant and a second coolant to a charge air cooler. In one example, a method may include flowing only a first coolant, flowing only a second coolant, or flowing a mixture of the first and the second coolants to the charge air cooler based on engine operating conditions. Further, the method may include adjusting additional engine operating parameters based on a ratio of the first coolant to second coolant flowing to the charge air cooler. 1. A method , comprising:flowing a mixture of coolants including a first coolant at a first temperature and a second coolant at a second temperature, lower than the first temperature, to a charge air cooler and adjusting a temperature of the mixture via adjusting a ratio of the first coolant to the second coolant in response to an engine operating condition and an outlet temperature of the charge air cooler.2. The method of claim 1 , wherein adjusting the temperature of the mixture includes increasing the ratio of the first coolant to the second coolant in response to one or more of decreasing engine load claim 1 , the outlet temperature of the charge air cooler decreasing below a desired outlet temperature claim 1 , intake manifold temperature decreasing below a threshold intake manifold temperature claim 1 , combustion phasing retarding beyond a target timing claim 1 , deceasing engine temperature claim 1 , decreasing after-treatment temperature claim 1 , and increasing condensate formation in the charge air cooler.3. The method of claim 1 , wherein adjusting the temperature of the mixture includes decreasing the ratio of the first coolant to the second coolant in response to one or more of increasing engine load claim 1 , the outlet temperature of the charge air cooler increasing above a desired outlet temperature claim 1 , intake manifold temperature increasing above a threshold intake manifold temperature increasing engine temperature claim 1 , increasing after-treatment ...

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12-01-2017 дата публикации

SUPERCHARGER SYSTEM FOR MOTORZIED VEHICLES AND RELATED TRANSPORTATION

Номер: US20170009643A1
Автор: Magana Chad, Simons Robert
Принадлежит:

A supercharger system is disclosed herein having a front end, a rear end, an inlet and an outlet, the system contained within a housing, wherein the supercharger system includes a rotor assembly, and a plurality of intake runners that comprise an interlaced cross-runner pattern, wherein the supercharger system comprises a front drive, front inlet configuration and an inverted orientation. 1. A supercharger system contained within a housing , the supercharger system having a front end , a rear end , an inlet and an outlet and comprising:a rotor assembly; andthe supercharger system in an inverted orientation having a plurality of intake runners, the plurality of intake runners comprising an interlaced cross-runner pattern, and wherein the supercharger system comprises a front drive, front inlet configuration.2. An engine of a motorized vehicle claim 1 , having a supercharger system of installed therein.3. The engine of claim 2 , wherein the engine comprises an intake manifold having a housing and a crankshaft.4. The engine of claim 3 , wherein the supercharger system housing is integrated with the intake manifold housing.5. The engine of claim 3 , wherein the outlet of the supercharger system points upward and away from the crankshaft.6. The supercharger system of claim 1 , wherein the rotor assembly is located in and installed from the rear end of the housing.7. The supercharger system of claim 1 , wherein the rotor assembly comprises at least two rotors.8. The supercharger system of claim 7 , wherein each rotor comprises at least two lobes.9. The supercharger system of claim 8 , wherein each rotor comprises at least four lobes.10. The supercharger system of claim 8 , wherein each lobe comprises at least 60 twist.11. The supercharger system of claim 10 , wherein each lobe comprises at least 160 twist.12. The supercharger system of claim 1 , wherein the system further comprises an integrated bypass valve claim 1 , an electric throttle body claim 1 , an intercooler ...

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12-01-2017 дата публикации

INTERNAL COMBUSTION ENGINE CONTROL APPARATUS

Номер: US20170009688A1
Принадлежит: HONDA MOTOR CO., LTD.

An internal combustion engine control apparatus includes a cylinder pressure sensor, a driving condition detector, a reference crank angle setter, a reference cylinder pressure calculator, an air-fuel ratio estimator, and a controller. The cylinder pressure sensor detects a cylinder pressure. The driving condition detector detects a driving condition in an engine. The reference crank angle setter calculates a reference crank angle immediately before which an air-fuel mixture starts combusting in accordance with the driving condition. The reference cylinder pressure calculator calculates a reference cylinder pressure in the cylinder at the reference crank angle based on temperature characteristics of a specific-heat ratio of the air-fuel mixture under a condition. The air-fuel ratio estimator calculates an air-fuel ratio based on a pressure difference between the reference cylinder pressure and the cylinder pressure at the reference crank angle. The controller controls the engine in accordance with the air-fuel ratio. 1. An internal combustion engine control apparatus for estimating an air-fuel ratio of an air-fuel mixture , with which a cylinder is filled , and controlling an internal combustion engine using the estimated air-fuel ratio , the control apparatus comprising:a cylinder pressure sensor that detects a pressure in the cylinder as a cylinder pressure;an operational status detection unit that detects an operational status of the internal combustion engine;a reference crank angle setting unit that sets, as a reference crank angle, a crank angle immediately before combustion of the air-fuel mixture is started in accordance with the detected operational status of the internal combustion engine;a reference cylinder pressure calculation unit that calculates, as a reference cylinder pressure, a pressure in the cylinder generated at the set reference crank angle on a basis of a temperature property of a specific-heat ratio of the air-fuel mixture on the conditions ...

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12-01-2017 дата публикации

CONTROL METHOD OF ELECTRONIC WASTE GATE ACTUATOR

Номер: US20170009692A1
Принадлежит:

A control method includes an electronic waste gate actuator (EWGA) and a waste gate valve, connected to each other through a rod. The control method includes an operation condition determination step for determining whether an engine is in cold operation or hot operation by measuring engine soak time and initial coolant temperature when the engine starts and by comparing them with a predetermined reference soak time and reference coolant temperature. The control method also includes a cold control step for setting cold operation reference voltage, performing cold operation learning, and applying cold operation learning data to the cold operation reference voltage, when the engine is in cold operation. The control method further includes a hot control step for setting hot operation reference voltage, performing hot operation learning, and applying hot operation learning data to the hot operation reference voltage, when the engine is in hot operation. 1. A method for controlling an electronic waste gate actuator (EWGA) in an electronic waste gate actuator system in which the electronic waste gate actuator is connected to a waste gate valve via a rod , the method comprising:an operation condition determination step for determining whether an engine is in cold operation or in hot operation by measuring an engine soak time and an initial temperature of coolant when the engine starts and by respectively comparing the engine soak time and the initial temperature of the coolant with a predetermined reference soak time and a predetermined reference coolant temperature;a cold control step for setting a cold operation reference voltage, for performing cold operation learning, and for applying cold operation learning data to the cold operation reference voltage, when it is determined at the operation condition determination step that the engine is in cold operation; anda hot control step for setting a hot operation reference voltage, for performing hot operation learning, and ...

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14-01-2016 дата публикации

SUPERCHARGING SYSTEM AND DIAGNOSTIC METHOD FOR SUPERCHARGING SYSTEM

Номер: US20160010572A1
Автор: TSUTSUJI Shunichi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A supercharging system includes a waste gate valve () mounted in a bypass passage () that bypasses a turbine () and through which exhaust gas flows. An electronic control unit () that diagnoses abnormality of the supercharging system makes a first abnormality determination and a second abnormality determination, each of which is based on an integrated value of an intake air amount and an increased amount of supercharging pressure in each of a first determination period from initiation to termination of an increase in the supercharging pressure and a second determination period from initiation to termination of an increase in the intake air amount. 1. A supercharging system comprising:a supercharger configured to supercharge an internal combustion engine;a supercharging pressure lowering mechanism configured to lower supercharging pressure by the supercharger; and (i) execute a first abnormality determination, the first abnormality determination having a period from initiation of an increase in the supercharging pressure that occurs after initiation of an increase in an intake air amount to termination of the increase in the supercharging pressure as a first determination period,', '(ii) determine presence or absence of abnormality of the supercharging system based on a first air amount integrated value of the intake air amount and a first peak supercharging pressure in the first determination period when an increased amount of the supercharging pressure in the first determination period is set as the first peak supercharging pressure,', '(iii) execute a second abnormality determination, the second abnormality determination having a period from initiation of an increase in the intake air amount to termination of an increase in the supercharging pressure as a second determination period, and', '(iv) determine presence or absence of the abnormality of the supercharging system based on a second air amount integrated value of the intake air amount and a second peak ...

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11-01-2018 дата публикации

CONTROL DEVICE OF VEHICLE

Номер: US20180010534A1
Принадлежит: Honda Motor Co.,Ltd.

A control device of a vehicle capable of improving acceleration responsiveness and suppressing increase in the NOx emission amount when a required torque is increased during a steady lean operation. A target air-fuel ratio (AFCMD) is set according to an accelerator pedal operation of a driver. When the driver depresses an accelerator pedal to make an acceleration request during the lean operation, in which the AFCMD is set to a predetermined lean air-fuel ratio (AFLN), air-fuel ratio reduction control is executed to reduce the AFCMD according to the acceleration request. In the air-fuel ratio reduction control, when the AFCMD calculated according to a required torque (TRQCMD) is smaller than a limit air-fuel ratio (AFLMT), the AFCMD is set to the AFLMT, and the AFLMT is set to a value smaller than the AFLN set in a steady state of the lean operation and larger than a theoretical air-fuel ratio (AFST). 1. A control device of a vehicle that is drivable by an internal combustion engine comprising a supercharger , wherein the internal combustion engine is capable of executing a lean operation , in which an air-fuel ratio of an air-fuel mixture that burns in the internal combustion engine is set to a lean side of a theoretical air-fuel ratio , and a lean supercharging operation , in which supercharging is performed by the supercharger during the lean operation , the control device of the vehicle comprising:a required torque setting unit setting a required torque of the internal combustion engine based on a request of a driver;a target air-fuel ratio setting unit setting a target air-fuel ratio of the air-fuel mixture based on the required torque; anda fuel supply unit supplying a fuel to the internal combustion engine based on the target air-fuel ratio,wherein when the driver makes an acceleration request during execution of the lean operation, the target air-fuel ratio setting unit executes an air-fuel ratio reduction control to reduce the target air-fuel ratio ...

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11-01-2018 дата публикации

METHOD FOR DETECTING CONTINUOUS INJECTION DURING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE, INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE

Номер: US20180010542A1
Автор: Dölker Armin
Принадлежит:

A method for detecting continuous injection during the operation of an internal combustion engine with an injection system having a high-pressure accumulator for a fuel, wherein —a high pressure in the injection system is monitored as a function of time, wherein —in order to detect continuous injection it is checked whether the high pressure has dropped by a predetermined continuous injection differential pressure value within a predetermined continuous injection time interval, wherein —it is checked whether a reduction valve which connects the high-pressure accumulator to a fuel reservoir has been triggered, and wherein —continuous injection is detected if —a reduction valve has not been triggered in a predetermined checking time interval before the dropping of the high pressure, and if —the high pressure has dropped by the predetermined continuous injection differential value amount within the predetermined continuous injection time interval. 111-. (canceled)12. A method for detecting continuous injection during operation of an internal combustion engine with an injection system having a high-pressure accumulator for a fuel , the method comprising the steps of:monitoring a high pressure in the injection system as a function of time;detecting continuous injection by checking whether the high pressure has dropped by a predetermined continuous injection differential pressure absolute value within a predetermined continuous injection time interval; andchecking whether a deactivation valve which connects the high-pressure accumulator to a fuel reservoir has been triggered,wherein continuous injection is detected when no deactivation valve has been triggered in a predetermined checking time interval before the dropping of the high pressure, and when the high pressure has dropped by the predetermined continuous injection differential pressure absolute value within the predetermined continuous injection time interval.13. The method according to claim 12 , including ...

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08-01-2015 дата публикации

CONTROL UNIT FOR VEHICLE DRIVING DEVICE

Номер: US20150012205A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control device of a vehicle drive device includes an engine having a supercharger and an automatic transmission outputting power of the engine to drive wheels. When an upshift of the automatic transmission is performed by executing an acceleration operation, if a progress status of a supercharging pressure increase in a supercharger pressure increasing process by the supercharger is a status in an initial period of the increasing process, a supercharging pressure increase degree before start of an inertia phase of the upshift is made smaller than a supercharging pressure increase degree after a predetermined timing subsequent to the start of the inertia phase, while if the progress status of the supercharging pressure increase is a status in an ending period of the increasing process, the supercharging pressure increase degree before the start of the inertia phase is made larger than the supercharging pressure increase degree after the predetermined timing. 1. A control device of a vehicle drive device including an engine having a supercharger and an automatic transmission outputting power of the engine to drive wheelswhen an upshift of the automatic transmission is performed by executing an acceleration operation, if a progress status of a supercharging pressure increase in a supercharger pressure increasing process by the supercharger is a status in an initial period of the increasing process, a supercharging pressure increase degree before start of an inertia phase of the upshift being made smaller than a supercharging pressure increase degree after a predetermined timing subsequent to the start of the inertia phase, while if the progress status of the supercharging pressure increase is a status in an ending period of the increasing process, the supercharging pressure increase degree before the start of the inertia phase being made larger than the supercharging pressure increase degree after the predetermined timing.2. The control device of a vehicle drive ...

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03-02-2022 дата публикации

Secondary Throttle Control Systems and Methods

Номер: US20220034269A1
Принадлежит:

An engine system includes: a first throttle valve; a turbocharger compressor disposed downstream of the first throttle valve; a charge air cooler disposed downstream of the turbocharger compressor; a second throttle valve located downstream of the turbocharger compressor; a purge inlet located downstream of the first throttle valve and configured to introduce fuel vapor from a fuel tank into intake air; and an engine control module configured to: maintain the first throttle valve in a fully open position; and selectively close the first throttle valve relative to the fully open position in response to receipt of a request to at least one of: purge fuel vapor from the fuel tank; and at least one of decrease and prevent icing of the charge air cooler. 1. An engine system , comprising:a first throttle valve;a turbocharger compressor disposed downstream of the first throttle valve;a charge air cooler disposed downstream of the turbocharger compressor;a second throttle valve located downstream of the turbocharger compressor;a purge inlet located downstream of the first throttle valve and configured to introduce fuel vapor from a fuel tank into intake air; and maintain the first throttle valve in a fully open position; and', 'selectively close the first throttle valve from the fully open position in response to receipt of a request to purge the fuel vapor from the fuel tank., 'an engine control module configured to2. The engine system of wherein the engine system does not include a purge pump configured to pump the fuel vapor from the fuel tank to the purge inlet.3. The engine system of wherein the charge air cooler is an air-to-air charge air cooler.4. The engine system of wherein the engine control module is further configured to selectively close the first throttle valve relative to the fully open position in response to receipt of a request to decrease air induction noise.5. The engine system of wherein the engine control module is further configured to selectively ...

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18-01-2018 дата публикации

HYDRAULIC SERVO DEVICE AND TURBOCHARGER

Номер: US20180016969A1
Принадлежит:

A hydraulic servo device includes: a servo piston configured to move in an axial direction with respect to a device main body; and a stroke sensor configured to detect an amount of movement of the servo piston with respect to the device main body. The hydraulic servo device is configured to change a supply flow rate of exhaust gas to a turbine of a turbocharger by moving the servo piston according to applied hydraulic pressure. A cooling water channel through which cooling water is to be supplied is provided at a part between the turbocharger and the stroke sensor. 1. A hydraulic servo device comprising:a servo piston configured to move in an axial direction with respect to a device main body; anda stroke sensor configured to detect an amount of movement of the servo piston with respect to the device main body,wherein the hydraulic servo device is configured to change a supply flow rate of exhaust gas to a turbine of a turbocharger by moving the servo piston according to applied hydraulic pressure,wherein a cooling water channel through which cooling water is to be supplied is provided at a part between the turbocharger and the stroke sensor and the hydraulic servo device comprises a heat shield portion at a part surrounding the stroke sensor, andwherein the heat shield portion includes the cooling water channel.2. (canceled)3. The hydraulic servo device according to claim 1 , wherein the cooling water channel includes a plate-shaped space that is provided inside a thick portion of the heat shield portion.4. The hydraulic servo device according to claim 1 , a moving element that is provided at one end portion of the servo piston; and', 'a stator that is disposed to the device main body, at a part around the moving element, and that is configured to detect a change in a position of the moving element with respect to the device main body, and, 'wherein the stroke sensor includeswherein the device main body is provided with the cooling water channel at a sensor holding ...

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18-01-2018 дата публикации

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING AT LEAST ONE TURBOCHARGER, CONTROL DEVICE, EQUIPPED FOR IMPLEMENTING A METHOD OF THIS TYPE, INTERNAL COMBUSTION ENGINE HAVING A CONTROL DEVICE OF THIS TYPE AND MOTOR VEHICLE HAVING AN INTERNAL COMBUSTION ENGINE OF THIS TYPE

Номер: US20180016996A1
Принадлежит:

A method for operating an internal combustion engine having a turbocharger, wherein a fuel quantity is supplied to the combustion chamber of the engine in a stationary state, which fuel quantity is determined according to a first predetermined relationship between a load requirement to the engine and a rating determining a fuel quantity to be supplied to the combustion chamber, wherein a second predetermined relationship between the rating and the load requirement is used, wherein according to the second relationship, a given load requirement is assigned a larger quantity of fuel than according to the first relationship. In a transient state of the engine, the fuel quantity supplied to the combustion chamber is determined based on an interpolated value of the rating, which is determined for the rating by an interpolation between a value resulting from the first relationship and a value resulting from the second relationship. 110-. (canceled)11. A method for operating an internal combustion engine having at least one turbocharger , comprising the steps of:feeding a quantity of fuel to a combustion chamber of the internal combustion engine in a steady state, the quality of fuel being determined according to a first predetermined relationship between a load requirement made of the internal combustion engine and a rated variable that determines the quantity of fuel to be fed to the combustion chamber; andproviding a second predetermined relationship between the rated variable and the load requirement is used, wherein according to the second relationship of a given load requirement a larger quantity of fuel is assigned than according to the first relationship, whereinthe quantity of fuel fed to the combustion chamber is determined in a transient state of the internal combustion engine based on an interpolated value of the rated variable obtained by interpolation between a value for the rated variable, resulting from the first relationship, and a value for the rated ...

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18-01-2018 дата публикации

METHOD OF DETECTING ENGINE TUNING OF VEHICLE

Номер: US20180017006A1
Автор: KIM Pan Sang
Принадлежит: HYUNDAI MOTOR COMPANY

A method of detecting illegal tuning of the vehicle may include obtaining and storing, by a controller, at least one of learning information including a variable value and a control value and engine state information at a time of controlling the vehicle while the vehicle is driven, as a learning value; comparing, by the controller, a learning value, which is newly obtained over time, with a prestored previous learning value; determining, by the controller, that a tuning chip for changing component performance in the vehicle is mounted when the learning value is changed and there remains a difference between the obtained learning value and the prestored previous learning value at a predetermined level or higher for a predetermined period of time; and creating and storing, by the controller, a tuning detection code when it is determined that the tuning chip is mounted. 1. A method of detecting tuning of a vehicle , the method comprising:obtaining and storing, by a controller, at least one of learning information including a variable value and a control value and engine state information at a time of controlling the vehicle while the vehicle is driven, as a learning value;comparing, by the controller, a learning value, which is newly obtained over time, with a prestored previous learning value;determining, by the controller, that a tuning chip for changing component performance in the vehicle is mounted when the learning value is changed and there remains a difference between the obtained learning value and the prestored previous learning value at a predetermined level or higher for a predetermined period of time; andcreating and storing, by the controller, a tuning detection code when it is determined that the tuning chip is mounted.2. The method of claim 1 , wherein the variable value and the control value are a variable value and a control value at a time of controlling a turbocharger and an engine in a turbocharged vehicle claim 1 , and the tuning chip for changing ...

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25-01-2018 дата публикации

COMPRESSOR OVERRIDE CONTROL

Номер: US20180023490A1
Автор: Beno Radek, Pachner Daniel
Принадлежит:

An engine system incorporating an intake manifold, a compressor, and a controller. The compressor may provide air to the intake manifold and the controller may be connected to the intake manifold and the compressor. The controller may receive a control signal and control air flow from the compressor to the intake manifold based on the received control signal. The controller may control the air flow from the compressor to the intake manifold based on a first equation when a value related to the control signal is on a first side of a threshold and according to a second equation when the value is on a second side of the threshold. The controller may control the air flow between the compressor and intake manifold according to the second equation to prevent the compressor from operating at a surge condition when controlling the air flow according to the first equation. 1. An engine system comprising:an intake manifold;a compressor for providing an air flow to the intake manifold; and receive a control signal;', 'control airflow from the compressor to the intake manifold based on the control signal received according to a first equation when a value related to the control signal is on a first side of a threshold; and', 'control airflow from the compressor to the intake manifold based on the control signal received according to a second equation when the value related to the control signal has crossed from the first side of the threshold to a second side of the threshold., 'a controller connected to the intake manifold and the compressor, the controller is configured to2. The engine system of claim 1 , wherein the threshold is a surge line on a compressor map of flow rate of the air flow from the compressor to the intake manifold versus a pressure ratio of a pressure at an output of the compressor over a pressure at an input of the compressor.3. The engine system of claim 1 , wherein the value is a predicted value of a function dependent on a flow rate of the air flow from ...

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24-01-2019 дата публикации

CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20190024575A1
Принадлежит: Mitsubishi Electric Corporation

In a control device for an internal combustion engine, when a target pre/post compressor pressure ratio calculated by a target pre/post compressor pressure ratio calculation part is more than a turbine-limit-time pre/post compressor pressure ratio calculated by a turbine-limit-time pre/post compressor pressure ratio calculation part, an upper limit of the target pre/post compressor pressure ratio is limited by the turbine-limit-time pre/post compressor pressure ratio, and a change rate of the target pre/post compressor pressure ratio is limited by a change rate limit value during a change rate limitation period after upper limit limitation processing starts, thereby preventing the target pre/post compressor pressure ratio from being suddenly fluctuated by a sudden fluctuation in a compressor passage flow rate, and suppressing the occurrence of the over rotation of the turbine and the control hunting. 1. A control device for an internal combustion engine , which is configured to control an internal combustion engine provided for a vehicle , a throttle valve, which is provided in an intake passage of the internal combustion engine;', 'an air flow sensor, which is configured to detect an intake air flow rate in the intake passage of the internal combustion engine;', 'a turbocharger, which includes a turbine provided in an exhaust passage of the internal combustion engine, and a compressor provided in the intake passage of the internal combustion engine and configured to rotate integrally with the turbine;', 'an exhaust bypass passage, which is configured to allow an upstream side and a downstream side of the turbine to communicate to each other;', 'a wastegate valve, which is provided in the exhaust bypass passage, and is configured to adjust a flow rate of exhaust gas of the internal combustion engine, which flows through the exhaust bypass passage;', 'an actuator, which is configured to drive the wastegate valve to change an open position of the wastegate valve; and ...

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24-04-2014 дата публикации

METHOD FOR MONITORING A PASSIVE PRESSURE REGULATION VALVE

Номер: US20140109876A1
Автор: Dölker Armin
Принадлежит: MTU Friedrichshafen GmbH

Proposed is a method for monitoring a passive pressure limiting valve () via which fuel is discharged from the rail () of a common rail system into the fuel tank (), in which method, upon the detection of a defective rail pressure sensor (), a switch is made from a rail pressure regulation mode into an emergency mode, wherein in the emergency mode, the rail pressure is successively increased until the pressure limiting valve () reacts, in which method, in the emergency mode, the pressure limiting valve () is set as open when the starting phase of the internal combustion engine has additionally been detected as having ended, and in which method, in addition, the opening duration of the pressure limiting valve () is monitored. 1. Method for monitoring a passive pressure limiting valve via which fuel is discharged from the rail of a common rail system into the fuel tank , wherein upon the detection of a defective rail pressure sensor , a switch is made from a rail pressure regulation mode into an emergency mode , wherein in the emergency mode , the rail pressure is gradually increased until the pressure limiting valve responds , wherein the pressure limiting valve is set as open in the emergency mode if the starting phase of the combustion is also detected as having ended , and wherein the opening duration of the pressure limiting valve is additionally monitored.2. Method according to claim 1 , wherein the opening duration is monitored in that upon setting an open pressure limiting valve claim 1 , a first time limit and a second time limit are defined for further operation claim 1 , a yellow alarm is triggered upon reaching the first the time limit to warn the operator and a red alarm is triggered upon reaching the second time limit as a recommendation that the pressure limiting valve should be replaced.3. Method according towhereinthe current opening duration is saved when the combustion engine is switched off and said duration continues to be recorded when the ...

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23-01-2020 дата публикации

Evaporated Fuel Processing Device for Forced Induction Internal Combustion Engine and Control Method for the Same

Номер: US20200025156A1
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

An evaporated fuel processing device for a forced induction internal combustion engine according to the present invention includes: a first purge path extending from the downstream of a purge control valve to an intake pipe at the downstream of a throttle valve; and a second purge path extending from the downstream of the purge control valve to an ejector provided in a reflux pipe providing communication between the intake pipe at the downstream of a compressor and the intake pipe at the upstream of the compressor. The evaporated fuel processing device switches first control characteristic data for the first purge path and second control characteristic data for the second purge path, when the first purge path and the second purge path are switched.

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02-02-2017 дата публикации

ENHANCING CYLINDER DEACTIVATION BY ELECTRICALLY DRIVEN COMPRESSOR

Номер: US20170030257A1
Принадлежит:

An electrically driven compressor is used to supplement a turbocharger on an engine featuring cylinder deactivation to alleviate the shortcomings of a single turbocharger in order to extend the deactivated operating ranges. The electrically driven compressor is also operable to enhance transient boost development of a turbocharged engine. 1. A powertrain system , comprising:an internal combustion engine defining a plurality of cylinders;an exhaust system in communication with said plurality of cylinders;an intake system in communication with said plurality of cylinders;a turbocharger including a turbine in communication with the exhaust system and a compressor in communication with the intake system;an electrically driven compressor in communication with the intake system;a cylinder deactivation mechanism associated with at least one cylinder for deactivating the at least one cylinder; anda controller for controlling the electrically driven compressor in response to a deactivation of said at least one cylinder.2. The powertrain system according to claim 1 , further comprising an exhaust gas recirculation passage in communication between the exhaust system and the intake system.3. The powertrain system according to claim 1 , wherein the electrically driven compressor is upstream of the turbocharger compressor within the intake system.4. The powertrain system according to claim 1 , wherein the electrically driven compressor is downstream of the turbocharger compressor within the intake system.5. The powertrain system according to claim 1 , further comprising a bypass passage in the intake system and including a bypass valve controlled by the controller for bypassing the electrically driven compressor.6. A powertrain system claim 1 , comprising:an internal combustion engine defining a plurality of cylinders;an exhaust system in communication with said plurality of cylinders;an intake system in communication with said plurality of cylinders;an electrically driven ...

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02-02-2017 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20170030284A1
Автор: Tanaka Satoru
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

Respective learned values of four parameters, that are an intake valve working angle deviation amount, an exhaust valve working angle deviation amount, an intake valve timing deviation amount and an exhaust pressure loss deviation amount, are calculated based on learned values of an intake valve flow rate error that are obtained under at least four different operating conditions. A correction amount with respect to an intake valve flow rate that is calculated with an intake valve model equation is calculated based on respective learned values of the four parameters using an intake valve flow rate error model equation in which coefficients are represented by functions of state quantities of an engine that include an engine speed and an intake pipe pressure. 1. A control device for an internal combustion engine equipped with an air flow sensor and an intake pipe pressure sensor that is configured to estimate an intake valve flow rate based on an estimated value or a measured value of an intake pipe pressure using an intake valve model equation in which an intake valve flow rate is represented by a linear expression that adopts an intake pipe pressure as a variable , the control device comprising:an error learning unit that is configured to learn, under at least four different operating conditions of the internal combustion engine, an intake valve flow rate error that is an error between a first intake valve flow rate obtained by inputting a measured value of an intake pipe pressure that is measured by the intake pipe pressure sensor into the intake valve model equation and a second intake valve flow rate that is calculated based on a measured value of a fresh air flow rate that is measured by the air flow sensor;a parameter learned value calculating unit that is configured to use an intake valve flow rate error model equation in which the intake valve flow rate error is represented by a polynomial expression comprising a first order term of a first parameter that is ...

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04-02-2016 дата публикации

FUEL SYSTEM DIAGNOSTICS

Номер: US20160032853A1
Автор: Huang Jian, Munshi Sandeep
Принадлежит:

A method and apparatus for in situ operating an internal combustion engine comprising determining at least one combustion characteristic for a combustion chamber of the internal combustion engine, comprising an actual heat release signal for the combustion chamber; and inputting the actual heat release signal into a diagnostic logic tree for diagnosing changes in combustion characteristics due to at least one of: a malfunctioning fuel injector, a start of combustion timing error; and a change in fuel quality; and performing a mitigation technique to compensate for the changes in combustion characteristics. 1. A method for in situ operating an internal combustion engine comprising:determining at least one combustion characteristic for a combustion chamber of said internal combustion engine, comprising an actual heat release signal for said combustion chamber; and a malfunctioning fuel injector associated with said combustion chamber,', 'a start of combustion timing error; and', 'a change in fuel quality; and, 'inputting said actual heat release signal into a diagnostic logic tree for diagnosing changes in combustion characteristics due to at least one ofperforming a mitigation technique to compensate for said changes in combustion characteristics.2. The method of claim 1 , further comprising:determining a desired heat release signal as a function of engine operating conditions;comparing a difference between said actual heat release signal and said desired heat release signal with a predetermined tolerance; anddiagnosing said fuel injector is malfunctioning when said difference is outside a range of said predetermined tolerance.3. The method of claim 2 , further comprising diagnosing that said malfunctioning fuel injector is: (a) introducing too much fuel when said difference is greater than a positive value of said predetermined tolerance; and claim 2 , (b) introducing too little fuel when said difference is less than a negative value of said predetermined tolerance. ...

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01-02-2018 дата публикации

AIR-BYPASS VALVE CONTROL DEVICE

Номер: US20180030939A1
Автор: MURAMATSU Konosuke
Принадлежит: SUBARU CORPORATION

An air-bypass valve control device is disposed in an engine. The engine includes an intake passage, a compressor, a throttle valve, an air-bypass passage and the air-bypass valve. The air-bypass valve control device includes an intake air amount detector, a controller. The intake air amount detector detects an intake air amount of the engine. The controller configured to temporarily bring the air-bypass valve into an opened state in the case where the intake air amount of the engine immediately before a decrease in an opening degree of the throttle valve is equal to or larger than a predetermined value when the opening degree of the throttle valve decreases at a predetermined speed or higher. 1. An air-bypass valve control device configured to be installed in an engine , the engine comprising:an intake passage configured to introduce air into the engine;a compressor provided in the intake passage and capable of compressing the air;a throttle valve disposed downstream of the compressor in the intake passage;an air-bypass passage configured to bypass the compressor from an upstream region to a downstream region thereof in the intake passage; andan air-bypass valve configured to be driven by an electric actuator to open/close the air-bypass passage, the air-bypass valve control device comprising:an intake air amount detector configured to detect an intake air amount of the engine; anda controller configured to temporarily bring the air-bypass valve into an opened state in a case where the intake air amount of the engine immediately before a decrease in an opening degree of the throttle valve is equal to or larger than a first predetermined value when the opening degree of the throttle valve decreases at a predetermined speed or higher.2. The air-bypass valve control device according to claim 1 , whereinthe first predetermined value is set such that the air-bypass valve is temporarily brought into the opened state in a case where an expected amplitude of a pressure ...

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09-02-2017 дата публикации

CONTROLLER FOR INTERNAL COMBUSTION ENGINE

Номер: US20170037807A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A controller for an internal combustion engine includes a combustion pressure sensor and a temperature calculator. The combustion pressure sensor has a pressure receiver, a semiconductor device, and a detection circuit. The pressure receiver is arranged in a combustion chamber. The internal pressure applied to the pressure receiver is transmitted to the semiconductor device, and the resistance value of the semiconductor device is changed in accordance with own temperature and own deformation caused by the internal pressure. The detection circuit outputs power in accordance with the pressure applied to the pressure receiver and the temperature of the semiconductor device. The temperature calculator calculates a temperature of the combustion chamber based on an output of the detection circuit at the time when a combustion pressure is not acting on the pressure receiver. 1. A controller for an internal combustion engine , comprising: a pressure receiver, which is configured to be arranged in a combustion chamber of the internal combustion engine and receives an internal pressure of the combustion chamber,', 'a semiconductor device, wherein the internal pressure applied to the pressure receiver is transmitted to the semiconductor device, and a resistance value of the semiconductor device is changed in accordance with both of an own temperature and an own deformation caused by the transmitted internal pressure, and', 'a detection circuit, which outputs power in accordance with the pressure applied to the pressure receiver and the temperature of the semiconductor device; and, 'a combustion pressure sensor, which includes'}a temperature calculator, which is configured to calculate a temperature of the combustion chamber based on an output of the detection circuit at the time when a combustion pressure of the internal combustion engine is not acting on the pressure receiver.2. The controller for an internal combustion engine according to claim 1 , whereinthe combustion ...

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24-02-2022 дата публикации

Detecting a State of an Air Diverter Valve of an Air Induction System for a Vehicle

Номер: US20220056860A1
Принадлежит: PACCAR INC

Examples of the present disclosure describe systems and methods for determining a state of an air diverter valve of an air induction system of a vehicle. The determined state of the air diverter valve may be based on an intercooler-based estimated ambient air temperature and a comparison between an ambient air temperature sensor value and a pre-compressor sensor value. 1. A system , comprising:a processor; and{'claim-text': ['receiving an ambient air temperature sensor reading from an ambient air temperature sensor associated with a vehicle;', 'determining, from a first model, a first ambient air temperature estimate;', 'determining from a second model, a second ambient air temperature estimate;', {'claim-text': ['whether the ambient air temperature sensor reading is lower than the first ambient air temperature estimate; or', 'whether the ambient air temperature sensor reading is higher than the first ambient air temperature estimate; and'], '#text': 'comparing the first ambient air temperature estimate to the ambient air temperature sensor reading to determine:'}, {'claim-text': ['the comparison between the ambient air temperature sensor reading and the first ambient air temperature estimate; and', 'the second ambient air temperature estimate.'], '#text': 'determining a state of an air diverter valve associated with the vehicle based, at least in part, on:'}], '#text': 'a memory communicatively coupled to the processor and storing instructions that, when executed by the processor, perform operations, comprising:'}2. The system of claim 1 , wherein the first model includes a pre-compressor sensor that measures a temperature of air prior to the air entering a compressor associated with the vehicle.3. The system of claim 1 , wherein the second model is based at least on a temperature drop of air as the air passes through an intercooler associated with the vehicle.4. The system of claim 1 , further comprising instructions for determining the air diverter valve is in a ...

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06-02-2020 дата публикации

INTAKE PASSAGE STRUCTURE FOR TURBOCHARGER-EQUIPPED ENGINE

Номер: US20200040810A1
Принадлежит: MAZDA MOTOR CORPORATION

An intake passage structure for a turbocharger-equipped engine () includes a supercharging passage () and an air relief passage () that are provided in a compressor case (). The air relief passage () has a first passage () and a second passage (), each of which is in a non-linear shape. The first and second passages () and () each have an air outflow port () formed through an inner wall surface of an upstream portion () of the supercharging passage () upstream of a compressor (). The air outflow ports () are formed through different portions of the inner wall surface in a circumferential direction of the inner wall surface so as to overlap with each other in a direction along a central axis of the upstream portion (). 1. An intake passage structure for a turbocharger-equipped engine , the intake passage structure comprising:a compressor of the turbocharger housed in a compressor case;an upstream intake passage supplying intake air into the compressor case;a downstream intake passage supplying the intake air supplied into the compressor case and supercharged by the compressor to an intake port of the engine; anda throttle valve disposed in the downstream intake passage, whereina supercharging passage and an air relief passage are provided in the compressor case, the supercharging passage including the compressor and connecting the upstream intake passage and the downstream intake passage together, the air relief passage connecting an upstream portion of the supercharging passage upstream of the compressor and a downstream portion of the supercharging passage downstream of the compressor together without passing through the compressor, and returning a portion of the intake air supercharged by the compressor to the upstream portion of the supercharging passage upstream of the compressor,the air relief passage has a first passage and a second passage, each of which is in a non-linear shape,the first and second passages each have an air outflow port formed through an ...

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06-02-2020 дата публикации

INTAKE PASSAGE STRUCTURE FOR TURBOCHARGER-EQUIPPED ENGINE

Номер: US20200040855A1
Принадлежит: MAZDA MOTOR CORPORATION

An intake passage structure for a turbocharger-equipped engine () includes a supercharging passage () and an air relief passage () provided in a compressor case (). The air relief passage () has an air outflow port () formed through an inner wall surface of an upstream portion () of the supercharging passage () upstream of the compressor (). A projecting member () projecting radially inward of a specific portion () is provided on a portion of an inner wall surface of the specific portion () in a circumferential direction of the inner wall surface. The specific portion () ranges from a downstream portion of an upstream intake passage () to a portion of the supercharging passage () upstream of the air outflow port (). 1. An intake passage structure for a turbocharger-equipped engine , the intake passage structure comprising:a compressor of the turbocharger housed in a compressor case;an upstream intake passage supplying intake air into the compressor case;a downstream intake passage supplying the intake air supplied into the compressor case and supercharged by the compressor to an intake port of the engine; anda throttle valve disposed in the downstream intake passage, whereina supercharging passage and an air relief passage are provided in the compressor case, the supercharging passage including the compressor and connecting the upstream intake passage and the downstream intake passage together, the air relief passage connecting an upstream portion of the supercharging passage upstream of the compressor and a downstream portion of the supercharging passage downstream of the compressor together without passing through the compressor, and returning a portion of the intake air supercharged by the compressor to the upstream portion of the supercharging passage upstream of the compressor,the air relief passage has an air outflow port formed through an inner wall surface of the upstream portion of the supercharging passage upstream of the compressor, andat least one ...

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19-02-2015 дата публикации

METHOD FOR ESTIMATING CHARGE AIR COOLER CONDENSATION STORAGE AND/OR RELEASE WITH AN INTAKE OXYGEN SENSOR

Номер: US20150047603A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for estimating water storage in a charge air cooler (CAC). In one example, an amount of water in charge air exiting the CAC may be based on an output of an oxygen sensor positioned downstream of the CAC. Further, engine actuators may be adjusted to increase combustion stability and/or reduce condensate formation based on the amount of water exiting the CAC. 1. An engine method , comprising:adjusting engine actuators based on an amount of water in charge air exiting a charge air cooler, the amount of water based on an oxygen sensor output positioned downstream of the charge air cooler.2. The method of claim 1 , wherein the oxygen sensor is positioned at an outlet of the charge air cooler.3. The method of claim 1 , further comprising operating the oxygen sensor in a variable voltage mode responsive to an exhaust gas recirculation flow being at or greater than a threshold.4. The method of claim 3 , wherein the threshold is based on a maximum exhaust gas recirculation flow rate for which water is a major diluent in the charge air.5. The method of claim 3 , wherein operating the oxygen sensor in the variable voltage mode includes increasing a reference voltage of the oxygen sensor from a base claim 3 , first voltage to a second voltage claim 3 , the second voltage higher than the first voltage.6. The method of claim 5 , wherein the amount of water is estimated based on a difference in pumping current when increasing the reference voltage from the first voltage to the second voltage and wherein the amount of water is further based on a saturation water value at an outlet temperature condition of the charge air cooler.7. The method of claim 1 , further comprising operating the oxygen sensor in one or more of a base mode and a variable voltage mode responsive to an exhaust gas recirculation flow being less than a threshold.8. The method of claim 1 , wherein adjusting engine actuators based on the amount of water includes one or more of ...

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19-02-2015 дата публикации

METHODS AND SYSTEMS FOR SURGE CONTROL

Номер: US20150047605A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for recirculating compressed air across a compressor through a high flow and a low flow compressor recirculation path. Flow through the recirculation paths is controlled via respective valves and valve opening is adjusted based on a throttle mass flow so as to maintain a compressor flow rate at or above a surge constrained flow rate. By maintaining a sufficiently high compressor flow rate during steady state and transient conditions, the compressor state can be maintained outside a surge region. 1. A method for a boosted engine , comprising:adjusting flow through each of a first higher flow compressor recirculation path and a second lower flow compressor recirculation path based on a throttle mass flow to maintain a compressor flow rate at or above a threshold flow rate, the second recirculation passage positioned in parallel to the first recirculation passage.2. The method of claim 1 , wherein each of the first and second compressor recirculation recirculate compressed airflow from downstream of a charge air cooler and upstream of an intake throttle to a compressor inlet3. The method of claim 2 , wherein adjusting flow through each of the first compressor recirculation and second compressor recirculation paths includes adjusting one or more of a first on/off valve coupled in the first recirculation passage and a second on/off valve coupled in the second recirculation passage.4. The method of claim 3 , wherein the second lower flow recirculation path includes a flow restriction downstream of the second valve.5. The method of claim 4 , wherein the flow restriction is an orifice.6. The method of claim 4 , wherein the flow restriction is a venturi.7. The method of claim 4 , wherein the adjusting includes claim 4 , during steady-state and transient conditions claim 4 , estimating a desired throttle mass flow; estimating the threshold flow rate based on a compressor surge limit; and adjusting an opening of the first valve and the second ...

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18-02-2016 дата публикации

METHOD FOR CONTROLLING A VARIABLE CHARGE AIR COOLER

Номер: US20160047297A1
Принадлежит:

Embodiments for a charge air cooler are provided. In one example, an engine method comprises during a first mode, decreasing a volume of a charge air cooler in response to a compressor operation upstream of the charge air cooler. In this way, compressor surge may be prevented. 1. A method of operating an engine having an electronic control unit including non-transitory instructions stored in memory , the method comprising:coordinately adjusting a position of a compressor recirculation valve configured to divert intake air around a compressor and a volume of charge air flowing through a charge air cooler disposed downstream of the compressor based on determined operating conditions of the compressor indicating whether the compressor is operating in a compressor surge region and an estimated condensation value of the charge air cooler.2. The method of claim 1 , wherein the coordinately adjusting the position of the compressor recirculation valve and the volume of charge air flowing through the charge air cooler includes adjusting the volume of charge air flowing through the charge air cooler by adjusting an actuator of the charge air cooler to adjust a number of passages through which the charge air flows within the charge air cooler.3. The method of claim 2 , wherein the actuator includes a charge air cooler valve positioned in an inlet tank of the charge air cooler claim 2 , where the inlet tank includes inlets to the passages through which charge air flows within the charge air cooler.4. The method of claim 3 , wherein the coordinately adjusting includes closing the charge air cooler valve to reduce the volume of charge air flowing through the charge air cooler claim 3 , in addition to or instead of adjusting the compressor recirculation valve claim 3 , in response to the estimated condensation value being above a threshold and the determined operating conditions of the compressor indicating that the compressor is operating in the compressor surge region.5. The ...

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18-02-2016 дата публикации

SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH EXHAUST-GAS TURBOCHARGER AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE OF SAID TYPE

Номер: US20160047324A1
Принадлежит:

Embodiments for inducing swirl upstream of a compressor are provided. In one example, a method includes during a first condition, flowing exhaust gas from downstream of a turbine to upstream of a compressor via a tangential flow duct of an exhaust gas recirculation (EGR) injector circumferentially surrounding an intake passage upstream of the compressor, and during a second condition, flowing exhaust gas from downstream of the turbine to upstream of the compressor via a radial flow duct of the EGR injector. 1. A supercharged internal combustion engine havingan intake system for supply of charge air,an exhaust-gas discharge system for discharge of exhaust gas,at least one exhaust-gas turbocharger which comprises a turbine arranged in the exhaust-gas discharge system and a compressor arranged in the intake system, the compressor being equipped with at least one impeller which is mounted on a rotatable shaft in a compressor housing,an exhaust-gas recirculation arrangement comprising a recirculation line system which branches off from the exhaust-gas discharge system downstream of the turbine of the at least one exhaust-gas turbocharger and which opens out into the intake system upstream of the at least one compressor impeller, andan additional exhaust-gas recirculation arrangement which comprises a line which branches off from the exhaust-gas discharge system upstream of the turbine and which opens out into the intake system again downstream of the compressor,wherein the recirculation line system comprises at least two annular ducts which surround the intake system in spiral form at least in sections upstream of the at least one compressor impeller, with multiple ducts extending from each annular duct, said ducts each being connected in terms of flow at an intake side, by way of an inlet opening, to the intake system,a first annular duct of the at least two annular ducts has ducts which, at least at the intake side, are oriented substantially radially with respect to ...

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26-02-2015 дата публикации

METHODS AND SYSTEMS FOR AIR FUEL RATIO CONTROL

Номер: US20150053176A1
Принадлежит:

Various methods and systems for an engine driving an electrical power generation system are provided. In one embodiment, an example method for an engine driving an electrical power generation system includes adjusting an engine speed in response to a relationship between oxygen and fuel while maintaining a power transmitted to the electrical power generation system.

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14-02-2019 дата публикации

CONTROLLER FOR INTERNAL COMBUSTION ENGINE

Номер: US20190048816A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A controller for an internal combustion engine includes a processing circuit that performs a dither control process on condition that a temperature increase request of a catalyst is made. The processing circuit operates fuel injection valves so that during the dither control process, one or more cylinders are lean combustion cylinders in a first period and another one or more cylinders are rich combustion cylinders and so that the average value of an exhaust gas-fuel ratio is a target air-fuel ratio in a second period including the first period. The dither control process is restricted in a manner that, on condition that the rich process is performed, the degree of richening of the richest exhaust gas-fuel ratio of exhaust gas-fuel ratios in the cylinders is reduced. 1. A controller for an internal combustion engine , wherein the internal combustion engine includes a catalyst configured to purify exhaust gas discharged from a plurality of cylinders , and a plurality of fuel injection valves respectively configured to supply fuel to the plurality of cylinders , and the internal combustion engine is configured to allow oxygen to flow into the catalyst without undergoing a combustion stroke , the controller comprisinga processing circuit configured to perform a dither control process on condition that a temperature increase request of the catalyst is made, wherein the processing circuit operates the fuel injection valves so that during the dither control process, one or more of the plurality of cylinders are lean combustion cylinders and another one or more of the plurality of cylinders are rich combustion cylinders in a first period and so that an average value of an exhaust gas-fuel ratio is a target air-fuel ratio in a second period including the first period, and wherein the lean combustion cylinders are cylinders having a leaner air-fuel ratio than a stoichiometric air-fuel ratio, and the rich combustion cylinders are cylinders having a richer air-fuel ratio than ...

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25-02-2016 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20160053695A1
Автор: KUZE Yasuhiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An internal combustion engine of the present invention is an internal combustion engine equipped with port injectors. Further, the internal combustion engine has an ISC passage that connects an upstream side and a downstream side of a throttle valve in an intake passage, and an ISC valve that regulates an amount of air flowing in the ISC passage. A control device of the present invention performs valve opening control that makes an opening degree of the ISC valve an opening degree larger than a reference opening degree when request torque required by the internal combustion engine is smaller than estimated torque that can be generated in the internal combustion engine, and sets a timing for fuel injection from the port injector at an opening timing of an intake valve of a cylinder in which the port injector is installed during the valve opening control. 1. A control device for an internal combustion engine , comprising:a throttle valve that is installed in an intake passage of the internal combustion engine including a supercharger;an ISC passage that connects an upstream side and a downstream side of the throttle valve, in the intake passage;an ISC valve that regulates an amount of air that flows in the ISC passage by being controlled to a predetermined opening degree;a port injector that is installed to inject fuel to an intake port of each of cylinders of the internal combustion engine;control means for executing valve opening control that makes an opening degree of the ISC valve an opening degree larger than a reference opening degree, when request torque required by the internal combustion engine is smaller than estimated torque that can be generated in the internal combustion engine; andrestriction means for restricting a timing for fuel injection from the port injector, during execution of the valve opening control.2. The control device for an internal combustion engine according to claim 1 ,wherein the restriction means includes means for setting a timing ...

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13-02-2020 дата публикации

METHOD AND ENGINE CONTROLLER FOR DIAGNOSING WASTE GATE VALVE MALFUNCTION AND RELATED POWER GENERATION SYSTEM

Номер: US20200049093A1
Принадлежит:

A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented. 1. A method for diagnosing a waste gate valve malfunction in a power generation system , comprising:(i) determining an actual pressure differential across a throttle valve;(ii) determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system;(iii) determining an absolute difference between the actual pressure differential and the estimated pressure differential; and (a) determining an operating condition of the throttle valve; and', '(b) determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve without any sensors associated with the waste gate valve, wherein determining whether the waste gate valve has malfunctioned enables the engine controller to determine one or more corrective measures for the power generation system., '(iv) comparing the absolute difference between the actual pressure differential and the estimated pressure differential ...

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05-03-2015 дата публикации

Method of Operating an Internal Combustion Engine with a Turbocharger

Номер: US20150059714A1
Принадлежит:

The present disclosure relates to a method for operating an internal combustion engine for a motor vehicle, in particular a passenger car having a turbocharger with a compressor and a turbine. The method includes determining a change quantity of a gas flow quantity of a gas flow through the internal combustion engine and regulating the compressor based on this change quantity. 113-. (canceled)14. A method for operating an internal combustion engine for a motor vehicle comprising:measuring an first gas flow quantity in a turbocharger at the start of a time interval with a sensor, wherein the turbocharger is operably coupled to the engine;measuring a second gas flow quantity in the turbocharger at the end of the time interval with the sensor, wherein the second gas flow represent a current gas flow quantity;determining a gas flow rate as a function of the difference between the first and second gas flow divided by the time interval; andregulating the turbocharger as a function of the gas flow rate.15. The method according to further comprising:determining an estimated gas flow quantity as a function of the current gas flow quantity and the gas flow rate; andregulating the turbocharger based on the estimated gas flow quantity.16. The method according to claim 15 , wherein the estimated gas flow quantity is determined as a function of an inertia quantity representing a reaction inertia of the turbocharger claim 15 , wherein the reaction inertia is selected from the group consisting of a reaction inertia of an actuator of the turbocharger claim 15 , a reaction inertia of a compressor of the turbocharger claim 15 , a reaction inertia of a turbine of the turbocharger claim 15 , a reaction inertia of the gas flow through the turbocharger claim 15 , and combinations thereof.17. The method according to further comprising regulating the compressor based on a preset allocation of the current gas flow quantity to a regulating set point value.18. The method according to claim 17 ...

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03-03-2016 дата публикации

METHOD AND APPARATUS FOR CONTROLLING AN ENGINE WITH EGR AND A TURBOCHARGER

Номер: US20160061125A1
Принадлежит: VOLVO TRUCK CORPORATION

A control system is provided for controlling an internal combustion engine. The internal combustion engine includes a turbocharging unit and an exhaust gas recirculation assembly. The control system is adapted to issue a boost pressure control signal. The control system includes a boost pressure controller adapted to determine the boost pressure control signal. The boost pressure controller has a first response time. The control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly. The control system includes an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal. The exhaust gas recirculation controller has a second response time, wherein the first response time differs from the second response time. 1. A control system for controlling an internal combustion engine , the internal combustion engine comprising a turbocharging unit and an exhaust gas recirculation assembly , the control system being adapted to issue a boost pressure control signal , the control system comprising a boost pressure controller adapted to determine the boost pressure control signal , the boost pressure controller having a first response time ,wherein the control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly, the control system comprising an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal, the exhaust gas recirculation controller having a second response time, wherein the first response time differs from the second response time.2. The control system according to claim 1 , wherein the first response time is at least three times greater than the second ...

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03-03-2016 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20160061126A1
Автор: KUZE Yasuhiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An internal combustion engine of the present invention is an internal combustion engine including a supercharger and an EGR device. Further, the internal combustion engine has an ISC passage that connects an upstream side and a downstream side of a throttle valve in an intake passage, and an ISC valve that regulates an amount of air that flows in the ISC passage. A control device of the present invention performs valve opening control that makes an opening degree of the ISC valve an opening degree larger than a reference opening degree when request torque required by the internal combustion engine is smaller than estimated torque that can be generated in the internal combustion engine, and prohibits opening of an EGR valve of the EGR device during execution of the valve opening control. 1. A control device for an internal combustion engine including a supercharger , comprising:an EGR device that recirculates part of an exhaust gas to an intake passage from an exhaust passage of the internal combustion engine, as an EGR gas;a throttle valve that is installed in the intake passage;an ISC passage that connects an upstream side and a downstream side of the throttle valve, in the intake passage;an ISC valve that regulates an amount of air that flows in the ISC passage by being controlled to a predetermined opening degree;control means for executing valve opening control that makes an opening degree of the ISC valve an opening degree larger than a reference opening degree, when request torque required by the internal combustion engine is smaller than a predicted generation torque calculated in accordance with control target values which are set at present; andmeans for prohibiting opening of an EGR valve of the EGR device, during execution of the valve opening control.2. The control device for an internal combustion engine according to claim 1 , further comprising:means for closing the EGR valve before execution of the valve opening control when there is an execution ...

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03-03-2016 дата публикации

CONTROL METHOD OF INTERNAL COMBUSTION ENGINE

Номер: US20160061140A1
Автор: Hotta Shintaro
Принадлежит:

A control method takes an internal combustion engine including a port injection valve that injects fuel into an intake port and a cylinder injection valve that directly injects fuel into a combustion chamber as a control target. In the control method, when request torque to the internal combustion engine is in a first torque range, lean combustion is realized by port asynchronous injection. When the request torque is increased from the first torque range to a second torque range which is higher than the first torque range, fuel injection is switched to port synchronous injection from port asynchronous injection, and lean combustion is realized by the port synchronous injection. When the request torque is increased from the second torque range to a third torque range that is higher than the second torque range, the port synchronous injection is stopped, and lean combustion is realize by cylinder injection. 1. A control method of an internal combustion engine that causes an internal combustion engine including a port injection valve that injects fuel into an intake port and a cylinder injection valve that directly injects fuel into a combustion chamber to selectively execute port asynchronous injection that starts fuel injection by the port injection valve while an intake valve is closed and ends the fuel injection by the port injection valve before the intake valve opens , port synchronous injection that starts fuel injection by the port injection valve while the intake valve is closed and ends the fuel injection by the port injection valve while the intake valve opens , and cylinder injection that performs fuel injection by the cylinder injection valve ,wherein when request torque to the internal combustion engine is in a first torque range, lean combustion in which fuel is leaner than stoichiometric combustion is realized by the port asynchronous injection,when the request torque increases from the first torque range to a second torque range that is higher than the ...

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01-03-2018 дата публикации

SYNERGISTIC INDUCTION AND TURBOCHARGING IN INTERNAL COMBUSTION ENGINE SYSTEMS

Номер: US20180058352A1
Принадлежит:

Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other. 120-. (canceled)21. An internal combustion engine system comprising:a turbocharging system comprising a turbocharger, wherein the turbocharger comprises a turbine inlet; a first cylinder having a first cylinder displacement;', a first intake valve controlling admission of combustion air to the first cylinder from a first intake port; and', 'a second intake valve controlling admission of combustion air to the first cylinder from a second intake port;, 'a first intake valve system comprising, 'a first exhaust valve system comprising one or more first cylinder exhaust valves controlling discharge of exhaust gas from the first cylinder to one or more first cylinder exhaust ports, wherein the one or more first cylinder exhaust ports are connected to the turbine inlet to deliver exhaust gas from the first cylinder to the turbine inlet;', a first throttle plate operationally affixed to control combustion air flow into the first cylinder through the first intake port, wherein the first throttle plate and the first intake valve define a first throttle-to-intake volume in a first intake channel; and', ...

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01-03-2018 дата публикации

ENGINE IDLING CONTROL SYSTEM OF CONSTRUCTION MACHINE

Номер: US20180058355A1
Автор: PARK Seong-Cheol
Принадлежит: VOLVO CONSTRUCTION EQUIPMENT AB

An engine idling control method for a construction machine includes setting, by an E-ECU, an initial engine RPM as a starting mode (S mode) by receiving a signal from a V-ECU at the time of an engine startup; receiving, by the E-ECU, a first instruction via an engine speed control switch in a state other than an automatic idle mode; activating the automatic idle mode when the first instruction is not input to a machine during a certain time period, and setting the engine RPM as the starting mode (S mode); deactivating the automatic idle mode when a second instruction is input to the machine via the engine speed control switch while the automatic idle mode is activated; and calculating, by the V-ECU, an actual torque required for a pump for starting the machine according to the second instruction when the automatic idle mode is deactivated, and sending the actual torque to the E-ECU. 1. An engine idling control method for a construction machine , the method comprising:setting, by an E-ECU, an initial engine RPM as a starting mode (S mode) by receiving a signal from a V-ECU when, an engine starts;receiving, by the E-ECU a first instruction via an engine speed control switch in a state other than an automatic idle mode;activating the automatic idle mode when the first instruction is not input to the machine for a certain time period, and setting, by the E-ECU, the engine RPM as the starting mode (S mode);deactivating the automatic idle mode when a second instruction is input to the machine via the engine speed control switch while the automatic idle mode is activated; and calculating, by the V-ECU, an actual torque required for a pump for operating the machine according to the second instruction when the automatic idle mode is deactivated, and sending the calculated actual torque to the E-ECU.the method, further comprising: after setting by the E-ECU, the initial engine RPM as the starting mode (S mode) by receiving the signal from the V-ECU when the engine starts, ...

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20-02-2020 дата публикации

TURBOCHARGER WITH PREDETERMINED BREAKING POINT FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20200056542A1
Принадлежит: Vitesco Technologies GmbH

Disclosed is a turbocharger for an internal combustion engine, having a bearing housing. A turbocharger rotor is mounted to be rotatable in the bearing housing about the rotor axis of rotation of its rotor shaft, wherein a turbine wheel is arranged for conjoint rotation on the rotor shaft and in a turbine housing fixed on the bearing housing. Between the rotor shaft and the bearing housing, an oil seal for sealing the bearing housing with respect to the turbine housing is arranged between the turbine wheel and a radial bearing associated with the turbine wheel in order to seal the bearing housing with respect to the turbine housing. A predetermined breaking point is formed for the turbocharger rotor of the turbocharger which lies in a breaking point region and extends axially between the turbine wheel back and an axial end, facing the turbine wheel back, of the rotor-shaft oil seal. 1. A turbocharger for an internal combustion engine , comprising:a bearing housing having a compressor side and a turbine side and a bearing housing interior,a turbine housing, which is fixed mechanically on the bearing housing on the turbine side;a turbocharger rotor, which has a rotor shaft and a turbine wheel, wherein the rotor shaft of the turbocharger rotor is rotatably mounted in the bearing housing by means of at least two radial bearings, and the turbine wheel is arranged for conjoint rotation on a turbine end of the rotor shaft and in the turbine housing, andat least one turbine-side rotor-shaft oil seal for sealing the bearing housing interior with respect to the turbine housing, the seal being arranged on the rotor shaft and between the rotor shaft and the bearing housing, wherein, axially in relation to a rotor axis of rotation, the turbine-side rotor-shaft oil seal is arranged on the rotor shaft between a turbine wheel back, which faces the bearing housing, and a radial bearing closest to the turbine wheel,wherein a predetermined breaking point is formed for the turbocharger ...

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04-03-2021 дата публикации

ENGINE DEVICE

Номер: US20210062740A1
Автор: Yasuda Hiromichi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An engine device is provided with a fuel vapor processor comprising a first supply pipe configured to supply a vaporized fuel gas including fuel vapor generated in the fuel tank, to a downstream side of the compressor in the intake pipe; a first valve provided in the first supply pipe; a second supply pipe configured to supply the vaporized fuel gas to an upstream side of the compressor in the intake pipe; a second valve provided in the second supply pipe; and a buffer portion provided on an intake pipe side of the second valve in the second supply pipe and configured to adsorb at least part of the fuel vapor. 1. An engine device , comprising:an engine configured to receive a supply of a fuel from a fuel tank and output a power;a supercharger having a compressor that is placed in an intake pipe of the engine; anda fuel vapor processor comprising a first supply pipe configured to supply a vaporized fuel gas including fuel vapor generated in the fuel tank, to a downstream side of the compressor in the intake pipe; a first valve provided in the first supply pipe; a second supply pipe configured to supply the vaporized fuel gas to an upstream side of the compressor in the intake pipe; a second valve provided in the second supply pipe; and a buffer portion provided on an intake pipe side of the second valve in the second supply pipe and configured to adsorb at least part of the fuel vapor.2. The engine device according to claim 1 , further comprising:a controller programmed to control the fuel vapor processor, whereinwhile the supercharge operates during operation of the engine and the first valve is closed, when a pressure in the fuel tank becomes equal to or higher than a predetermined pressure, the controller causes the second valve to be opened.3. The engine device according to claim 2 ,wherein the fuel vapor processor further comprises a canister connected with an intake pipe side of the first valve in the first supply pipe via a first piping, opened to atmosphere ...

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04-03-2021 дата публикации

SYSTEMS AND METHODS FOR INCREASING ENGINE POWER OUTPUT UNDER GLOBALLY STOICHIOMETRIC OPERATION

Номер: US20210062741A1
Принадлежит:

Methods and systems are provided for increasing engine power while reducing vehicle emissions and engine system degradation. In one example, a method may include, responsive to an engine load reaching a threshold load, increasing engine torque by increasing an amount of boost without providing exhaust gas recirculation (EGR), and, responsive to the engine torque reaching a first threshold torque, increasing the engine torque by increasing an EGR rate over a plurality of engine cycles while further increasing the amount of boost. In this way, cooling effects from the EGR enable engine air flow, and thus engine power, to be increased while engine vibrations and heat-related exhaust component degradation are decreased. 1. A method , comprising:responsive to an engine load reaching a threshold load, increasing engine torque by increasing an amount of boost without providing exhaust gas recirculation (EGR) until reaching a first threshold torque; andresponsive to the engine torque reaching the first threshold torque, increasing the engine torque by increasing an EGR rate over a plurality of engine cycles while further increasing the amount of boost.2. The method of claim 1 , wherein increasing the amount of boost includes increasing an intake compressor speed claim 1 , and the method further comprises maintaining a stoichiometric air-fuel ratio (AFR) while increasing the amount of boost.3. The method of claim 1 , further comprising claim 1 , responsive to the engine torque reaching a second threshold torque claim 1 , greater than the first threshold torque claim 1 , decreasing the EGR rate to a non-zero rate while increasing a lambda split between a first set of one or more engine cylinders and a second set of one or more engine cylinders over a plurality of engine cycles.4. The method of claim 3 , further comprising claim 3 , further increasing the amount of boost while increasing the lambda split between the first set of one or more engine cylinders and the second set ...

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28-02-2019 дата публикации

METHOD AND SYSTEM FOR A BOOSTED ENGINE

Номер: US20190063347A1
Принадлежит:

Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes. 1. A method , comprising:responsive to driver torque demand,generating an overall pressure ratio command for a first, slower, compression device of an engine intake; andadjusting a pressure ratio command for a second, faster, compression device in the engine intake responsive to a boost pressure shortfall required for the driver torque demand.2. The method of claim 1 , wherein the generating includes generating the overall pressure ratio command based on the driver torque demand claim 1 , wherein the boost pressure shortfall includes one of an airflow shortfall and a pressure ratio shortfall claim 1 , and wherein the adjusting includes estimating an actual pressure ratio across the first compression device claim 1 , estimating the boost pressure shortfall based on the actual pressure ratio relative to the overall pressure ratio command claim 1 , and adjusting the pressure ratio command for the second compression device based on the boost pressure shortfall.3. The method of claim 2 , wherein the adjusting further includes dynamically reducing the boost pressure shortfall as the actual pressure ratio across the first compression device approaches the overall pressure ratio command claim 2 , and dynamically adjusting the pressure ratio command for the second compression device as the boost pressure shortfall reduces.4. ...

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28-02-2019 дата публикации

METHOD AND SYSTEM FOR A BOOSTED ENGINE

Номер: US20190063348A1
Принадлежит:

Methods and systems are provided for coordinated control of a compound boosting system, including a first compressor staged upstream of a second compressor in an engine intake. In one example, a method may include operating the second, downstream compressor in steady-state to achieve an overall pressure ratio across the compound boosting system while operating the first, upstream compressor transiently, based on an airflow shortfall at the downstream compressor. A timing and amount of electric assistance provided to transiently operate the first, upstream compressor may be adjusted dynamically as the pressure ratio across the second compressor changes. 1. A method , comprising:operating a first compression device of an engine intake based on operator torque demand; and operating an electric motor in a motor mode to provide positive motor torque to a second compression device of the engine intake while an airflow shortfall at the first compression device is higher than a threshold;', 'operating the electric motor in a generator mode to provide negative motor torque to the second compression device while the airflow shortfall at the first compression device is smaller than the threshold; and', 'disconnecting the second compression device, bypassing the second compression device by opening a bypass valve of the second compression device, and providing compressed air via only the first compression device when there is substantially no airflow shortfall at the first compression device., 'while operating the first compression device24-. (canceled)5. The method of claim 1 , wherein providing positive motor torque to the second compression device includes accelerating the second compression device and increasing a pressure ratio across the second compression device claim 1 , and wherein providing negative motor torque to the second compression device includes decelerating the second compression device and decreasing the pressure ratio across the second compression device.6. ...

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17-03-2016 дата публикации

Air Handling Control For Opposed-Piston Engines With Uniflow Scavenging

Номер: US20160076468A1
Принадлежит: Achates Power, Inc.

In an air handling system of a uniflow-scavenged, two-stroke cycle opposed-piston engine, one or more engine operating state parameters are sensed, numerical values of air handling parameters based on trapped conditions in a cylinder of the engine at the last port closing of an engine operating cycle are determined in response to the sensed parameters, the numerical values are evaluated, and one or more of the numerical values is adjusted in response to the evaluation. The adjusted numerical values are used to control charge air flow and EGR flow in the air handling system. 1. A uniflow-scavenged , opposed-piston engine equipped with an air handling system , comprising:at least one cylinder with a bore, axially-spaced exhaust and intake ports, and a pair of pistons disposed in opposition in the bore and operative to open and close the exhaust and intake ports during operation of the engine;a charge air channel to provide charge air to at least one intake port;an exhaust channel to receive exhaust gas from at least one exhaust port;a supercharger operable to pump charge air in the charge air channel; and,a control mechanization operable to determine a value of a first trapped air handling parameter in response to an engine operating state and to adjust, based on the determined value of the first trapped air handling parameter, charge air flow in the charge air channel.2. The opposed-piston engine of claim 1 , in which the control mechanization is operable to adjust charge air flow based on the determined value of the first trapped air handling parameter by one of changing a speed of the supercharger and operating a first valve to shunt charge air flow from an output to an input of the supercharger.3. The opposed-piston engine of claim 1 , in which the engine includes an exhaust gas recirculation (EGR) loop having a loop input coupled to the exhaust channel and a loop output coupled to the charge air channel and the control mechanism is further operable to determine a ...

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15-03-2018 дата публикации

BLOW-BY GAS SUPPLY DEVICE FOR ENGINE

Номер: US20180073451A1
Автор: OZAWA Tomoya
Принадлежит: SUBARU CORPORATION

A blow-by gas supply device includes an upstream-side passage, a downstream-side passage, a gas passage, a bypass passage, a valve mechanism, and a valve control unit. The device is provided in an engine including a compressor, and recirculates blow-by gas upstream of the compressor. The upstream-side passage is coupled to an input port of the compressor. The downstream-side passage is coupled to an output port of the compressor. The gas passage is coupled to the upstream-side passage and guides the blow-by gas from inside of the engine to the upstream-side passage. The bypass passage is coupled to the upstream-side passage and the downstream-side passage and guides the intake air from the downstream side passage to the upstream side passage. The valve mechanism is provided in the bypass passage and switched between communication and cutoff states. The valve control unit controls the valve mechanism in the communication or cutoff state. 1. A blow-by gas supply device for an engine , the engine including a compressor that is configured to compress intake air , the blow-by gas supply device being configured to be provided in the engine and to recirculate blow-by gas to an upstream side of the compressor , the blow-by gas supply device comprising:an upstream-side passage configured to be coupled to an input port of the compressor and guide the intake air to be suctioned into the input port;a downstream-side passage configured to be coupled to an output port of the compressor and guide the intake air discharged from the output port;a gas passage coupled to the upstream-side passage and configured to guide the blow-by gas from inside of the engine to the upstream-side passage;a bypass passage coupled to the upstream-side passage and the downstream-side passage and configured to guide the intake air from the downstream side passage to the upstream. side passage;a valve mechanism provided in the bypass passage and configured to be switched between a communication state ...

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07-03-2019 дата публикации

COMPRESSOR ARRANGEMENT SUPPLYING CHARGED AIR TO A COMBUSTION ENGINE

Номер: US20190072029A1
Принадлежит: SCANIA CV AB

Provided is a compressor arrangement in an air line supplying charged air to a combustion engine. The compressor arrangement comprises a compressor unit comprising a housing including an air intake passage, a compressor wheel arranged in said air intake passage, and an additional air passage allowing recirculation of air from the air intake passage in a position radially outwardly of a part of the compressor wheel. The additional air passage is configured to allow recirculation of air to an air conduit delivering an air flow to the air intake passage of the compressor unit. 1. A compressor arrangement in an air line supplying charged air to a combustion engine , wherein the compressor arrangement comprises:a compressor unit comprising a housing including an air intake passage;a compressor wheel arranged in said air intake passage; andan additional air passage allowing recirculation of air from the air intake passage in a position radially outwardly of a part of the compressor wheel to an air conduit delivering an air flow to the air intake passage of the compressor unit in a position located at a flow distance from the compressor wheel corresponding to at least 1 to 5 times the inlet diameter of the compressor wheel, wherein the additional air passage comprises a return conduit having an extension between a downstream end connected to an opening in the housing and an upstream end connected to an opening in the air conduit and that the air conduit has a curved portion close to the intake passage of the compressor unit, wherein the return conduit is configured to return air to an upstream position of said curved portion of the air conduit.2. A compressor arrangement according to claim 1 , wherein the additional air passage is configured to return air to the air conduit in a position located at a flow distance from the compressor wheel within the range of 2 to 5 times the inlet diameter of the compressor wheel.3. A compressor arrangement according to claim 1 , wherein ...

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16-03-2017 дата публикации

METHOD AND SYSTEM FOR SURGE CONTROL

Номер: US20170074180A1
Принадлежит:

Methods and systems are provided for improving surge detection and mitigation. In one example, a surge detection method may selectively filter an aggregate of temperature-adjusted manifold pressure and boost pressure in a frequency range indicative of surge to reduce the effect of non-minimum phase behavior of throttle inlet pressure on surge detection. In addition, the noise contribution of particular engine actuators on throttle inlet pressure in the selected frequency range may be accounted for, reducing the occurrence of false surge indications. 1. A method for a boosted engine , comprising:combining one or more of manifold airflow and manifold pressure with throttle inlet pressure into an aggregate intake pressure; andadjusting an operating parameter responsive to compressor surge, the surge determined based on the aggregate intake pressure, and further based on intake temperature.2. The method of claim 1 , further comprising claim 1 , processing the aggregate intake pressure via a filter.3. The method of claim 2 , wherein the filter passes selected frequencies indicative of surge and disables the passing of frequencies outside of surge.4. The method of claim 3 , wherein the selected frequencies that are passed through the filter include a range of frequencies that change with engine operating conditions including temperature.5. The method of claim 4 , wherein the temperature includes one or more of an intake manifold air charge temperature and a compressor inlet temperature.6. The method of claim 4 , wherein the temperature includes a weighted average of an intake manifold air charge temperature and a compressor inlet temperature.7. The method of claim 2 , wherein the filter includes one or more of a low-pass filter and a band-pass filter claim 2 , and wherein a passing range of the filter is adjusted based on engine operating conditions.8. The method of claim 3 , further comprising claim 3 , during a tip-in event claim 3 , ignoring an output of the filter ...

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12-06-2014 дата публикации

CONTROLLED TRANSIENT ACCELERATION TO EVACUATE CONDENSATE FROM A CHARGE AIR COOLER

Номер: US20140157772A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for purging condensate from a charge air cooler. In response to condensate in a charge air cooler during a tip-in, airflow is increased at a controlled rate to the intake manifold, purging condensate from the charge air cooler. 1. An engine method , comprising:in response to a condensate level in a charge air cooler, limiting an increase in engine airflow during vehicle acceleration.2. The method of claim 1 , wherein the vehicle acceleration includes a tip-in.3. The method of claim 1 , wherein the limiting is responsive to the condensate level in the charge air cooler being above a first threshold level.4. The method of claim 1 , wherein the limiting includes controlling opening of a throttle based on a rate of increase in engine airflow.5. The method of claim 4 , wherein the rate of increase in engine airflow is adjusted based on one or more of the condensate level in the charge air cooler and a target condensate ingestion rate.6. The method of claim 4 , wherein the limiting is reduced responsive to the condensate level in the charge air cooler decreasing below a second threshold level.7. The method of claim 6 , further comprising increasing boost and a throttle opening at a controlled rate to increase torque to a demanded level during the vehicle acceleration.8. The method of claim 4 , wherein the limiting is reduced when the vehicle acceleration ends.9. The method of claim 1 , wherein the limiting further includes limiting engine load.10. The method of claim 1 , further comprising increasing a boost level during the limiting.11. An engine method claim 1 , comprising: during a first condition, limiting an increase in engine airflow and;', 'during a second condition, maintaining engine airflow., 'in response to a condensate level in a charge air cooler above a first threshold level,'}12. The method of claim 11 , wherein the first condition includes when a rate of change in pedal position is greater than a threshold rate of change.13 ...

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26-03-2015 дата публикации

CONTROL APPARATUS AND CONTROL METHOD FOR DIESEL ENGINE

Номер: US20150083071A1
Принадлежит:

A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug. 1. A control apparatus for a diesel engine including:a neighboring temperature estimating section configured to estimate a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup; anda supercharging pressure control section configured to control a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug.2. The control apparatus for the diesel engine according to claim 1 , whereinthe supercharging pressure control section is configured to control the supercharging pressure upon startup at a low temperature.3. The control apparatus for the diesel engine according to claim 1 , whereinthe supercharging pressure control section is configured to control the supercharging pressure in such a way that the supercharging pressure is maximized in an equal rotational fluctuation region.4. The control apparatus for the diesel engine according to claim 1 , whereinthe supercharging pressure control section is configured to control the supercharging pressure in such a way that the temperature of the neighborhood of the glow plug does not decrease, until entering a stable region in which the rotational fluctuation is small.5. The control apparatus for the diesel engine according to claim 1 , further includinga glow energizing control section configured to set the amount of energization of the glow plug larger upon supercharging than upon non-supercharging, until entering the stable region ...

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12-06-2014 дата публикации

CONTROLLING CHARGE AIR COOLER CONDENSATION BY USING HEATED INTAKE AIR

Номер: US20140158089A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for adjusting the temperature of intake air entering an engine. In response to condensate in a charge air cooler and engine operating conditions, the position of an induction valve is adjusted to draw in air from a warm or cool air duct. Induction valve operation is further controlled to reduce fuel economy losses. 1. An engine method , comprising:adjusting a fresh air source position of intake air responsive to a condition of a charge air cooler.2. The method of claim 1 , wherein the condition of the charge air cooler includes condensate formation in the charge air cooler claim 1 , wherein the adjusting is further responsive to one or more of an engine knock indication claim 1 , a throttle body icing condition claim 1 , engine temperature claim 1 , and engine load.3. The method of claim 2 , wherein the adjusting includes adjusting a position of an induction valve claim 2 , and wherein the engine knock indication includes whether spark timing is within a threshold of a borderline limit or an amount of retard from MBT timing.4. The method of claim 3 , wherein when the induction valve is in a first position claim 3 , warmed intake air is drawn from under a hood of a vehicle.5. The method of claim 3 , wherein when the induction valve is in a second position claim 3 , intake air is drawn with less warming than in the first position.6. The method of claim 4 , wherein the induction valve is adjusted into the first position claim 4 , responsive to each of an amount of condensate in the charge air cooler above a first threshold level and engine temperature below a threshold temperature.7. The method of claim 6 , wherein engine temperature below the threshold temperature includes an engine warm-up period from an engine cold start condition.8. The method of claim 6 , wherein the induction valve is adjusted into the first position further responsive to an idle condition.9. The method of claim 6 , further comprising adjusting the induction valve ...

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22-03-2018 дата публикации

Position detection device

Номер: US20180080801A1
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

The purpose of the present invention is to provide an eddy current position sensor that is less susceptible to the influence of changes in gaps due to installation or changes in temperature, or by changes in coil properties due to changes in temperature. The present invention is configured to detect the position of an object 4 to be measured by detecting the difference in signals from a reference coil 8 A and a sensing coil 8 B, which are configured such that, even if the object 4 to be measured rotates in a rotation direction 6 A, a gap 7 A between the reference coil 8 A in a sensor 2 and a reference surface 9 A on the object 4 to be measured does not change and a gap 7 B between the sensing coil 8 B and a sensing surface 9 B on the object 4 to be measured changes, wherein changes in a gap 7 between the object 4 to be measured and each of coils 8 A, 8 B are signal output as magnetic field changes.

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24-03-2016 дата публикации

CONTROL DEVICE OF ENGINE WITH TURBOCHARGER AND METHOD OF CONTROLLING THE ENGINE

Номер: US20160084178A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control device of an engine including an exhaust gas turbocharger having an exhaust driven turbine with a turbine wheel and a compressor wheel includes an electronic control unit configured to set a target output torque based on a required value of an output torque for the engine, regulate the output torque of the engine to the target output torque, and limit an increase of an actual output torque of the engine from a timing at which a rate of increase of the actual output torque exceeds a predetermined value, when the target output torque is larger by at least a predetermined amount than the actual output torque and the rate of increase of the actual output torque is equal to or smaller than the predetermined value. 1. A control device of an engine including an exhaust gas turbocharger having an exhaust gas driven turbine with a turbine wheel and a compressor wheel , the control device comprising:an electronic control unit configured to(a) set a target output torque based on a required value of an output torque for the engine;(b) regulate the output torque of the engine to the target output torque; and(c) limit an increase of an actual output torque of the engine from a timing at which a rate of increase of the actual output torque exceeds a predetermined value, when the target output torque is larger by at least a predetermined amount than the actual output torque and the rate of increase of the actual output torque is equal to or smaller than the predetermined value.2. The control device according to claim 1 , wherein the electronic control unit is configured to limit the increase of the actual output torque by controlling an opening of a throttle valve.3. The control device according to claim 1 , wherein the electronic control unit is configured to put a reduced limitation on the increase of the actual output torque claim 1 , when the required value of the output torque for the engine increases while the increase of the actual output torque is being limited.4. ...

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24-03-2016 дата публикации

EXHAUST SYSTEM HAVING AFTERTREATMENT REGENERATION CYCLE CONTROL

Номер: US20160084184A1
Принадлежит: Progress Rail Services Corporation

An exhaust system for an engine is provided that may have an exhaust passage configured to direct exhaust from the engine to the atmosphere. The exhaust system may also have an aftertreatment component disposed within the exhaust passage, a throttle configured to generate a throttle position signal indicative of a throttle position of the engine, and a temperature sensor configured to generate a temperature signal indicative of the exhaust temperature. The exhaust system may also have a controller in communication with the engine, the throttle, the sensor, and the aftertreatment component, configured to monitor the temperature signal and track a total duration for which the temperature signal is less than a threshold temperature. The controller may also be configured to initiate a load increase on the engine to raise a temperature of exhaust exiting the engine when the total duration is greater than a threshold duration. The threshold temperature and the threshold duration vary during operation of the engine, and are determined by the controller based on one or more inputs including at least the throttle position. 1. An exhaust system for an engine , comprising:an exhaust passage configured to direct exhaust from the engine to the atmosphere;an aftertreatment component disposed within the exhaust passage;a throttle configured to generate a throttle position signal indicative of a throttle position of the engine;a temperature sensor configured to generate a temperature signal indicative of the exhaust temperature; and monitor the temperature signal and track a total duration for which the temperature signal is less than a threshold temperature; and', 'initiate a load increase on the engine to raise a temperature of exhaust exiting the engine when the total duration is greater than a threshold duration;', 'wherein the threshold temperature and the threshold duration vary during operation of the engine, and are determined by the controller based on one or more inputs ...

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25-03-2021 дата публикации

LIQUID-COOLED POWER ELECTRONICS ASSEMBLY FOR ELECTRICALLY-ACTUATED TURBOCHARGERS

Номер: US20210087967A1
Принадлежит:

A power electronics assembly that controls an electrically-actuated turbocharger includes a printed circuit board (PCB) having a non-conductive substrate supporting one or more electrical components that attach to the non-conductive substrate on one or more sides of the PCB; one or more conductive layers that couple with the non-conductive substrate and conduct electrical current within the PCB; a fluid barrier layer applied to an outer surface of the non-conductive substrate or conductor layer; and a PCB housing, configured to couple with the electrically-actuated turbocharger, having a fluid cavity that communicates liquid from an internal combustion engine (ICE) to the fluid barrier layer separating the liquid and the PCB. 1. A power electronics assembly that controls an electrically-actuated turbocharger , comprising: a non-conductive substrate supporting one or more electrical components that attach to the non-conductive substrate on one or more sides of the PCB;', 'one or more conductive layers that couple with the non-conductive substrate and conduct electrical current with the PCB;, 'a printed circuit board (PCB) includinga fluid barrier layer applied to an outer surface of the non-conductive substrate or conductor layer; anda PCB housing, configured to couple within the electrically-actuated turbocharger, having a fluid cavity that communicates liquid from an internal combustion engine (ICE) to the fluid barrier layer separating the liquid and the PCB.2. The power electronics assembly recited in claim 1 , further comprising a second fluid barrier layer applied to a surface of the PCB opposite of the fluid barrier layer.3. The power electronics assembly recited in claim 1 , further comprising a second fluid cavity.4. The power electronics assembly recited in claim 1 , further comprising a plurality of electrical components covered by the fluid barrier layer.5. The power electronics assembly recited in claim 2 , further comprising a plurality of electrical ...

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31-03-2016 дата публикации

SUPERCHARGING SYSTEM

Номер: US20160090926A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A supercharging system includes a waste gate valve and an ECU. The ECU is configured to: calculate a first parameter and a second parameter, each of which has a positive correlation with an intake air amount; obtain a first difference by subtracting a first boost pressure from a second boost pressure; obtain a second difference by subtracting the first parameter from the second parameter; obtain a quotient by dividing the first difference by the second difference; and determine that a malfunction occurs in the waste gate valve when the quotient is larger than a threshold value. 1. A supercharging system for an internal combustion engine including an exhaust passage , the supercharging system comprising:a supercharger including a turbine provided in the exhaust passage;a bypass passage located in the exhaust passage so as to bypass the turbine;a waste gate valve configured to interrupt flow of exhaust gas into the bypass passage when the waste gate valve is closed;a first sensor configured to detect an intake air amount of the internal combustion engine;a second sensor configured to detect a boost pressure; and (i) conduct a malfunction diagnosis of the waste gate valve when a precondition is satisfied, the precondition including a condition that a valve opening command is generated, by the electronic control unit, to the waste gate valve;', '(ii) calculate a parameter having a positive correlation with an integrated intake air amount over a predetermined integration period, when the precondition is satisfied;', '(iii) detect one of a first boost pressure and a second boost pressure at a point in time during a period from when the predetermined integration period elapses until when the precondition ceases to be satisfied;', '(iv) detect the first boost pressure when the intake air amount is within a first region, and store the parameter obtained when the first boost pressure is detected as a first parameter;', '(v) detect the second boost pressure when the intake air ...

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30-03-2017 дата публикации

METHOD AND CONTROL UNIT FOR CARRYING OUT A GAS EXCHANGE IN A CYLINDER OF AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE HAVING SUCH A CONTROL UNIT

Номер: US20170089271A1
Принадлежит:

A method for carrying out a gas exchange in a cylinder of an internal combustion engine is provided. The cylinder is connected to a gas line section via a valve. An actuator adjusts a gas pressure in the gas line section. The valve closes at a fixed point in time in a working cycle of the internal combustion engine in case of a constant torque of the internal combustion engine. The method includes the steps of recognizing a torque change request; determining a target value for the gas pressure in the gas line section in dependence on the torque change request; and determining a variable point in time for closing the valve as a result of the torque change request, wherein the variable point in time is shifted in the working cycle relative to the fixed point in time in dependence on the target value of the gas pressure. 1. A method for carrying out a gas exchange in a cylinder of an internal combustion engine , the method comprising:providing the internal combustion engine such that the cylinder is connected, via a valve, to a gas line section and providing, in the gas line section, an actuator for adjusting a gas pressure in the gas line section, wherein the valve closes at a fixed point in time in a working cycle of the internal combustion engine in case of a constant torque of the internal combustion engine;recognizing a torque change request;determining a target value for the gas pressure in the gas line section in dependence on the torque change request and subsequently determining a variable point in time for closing the valve as a result of the torque change request, wherein the variable point in time is shifted in the working cycle relative to the fixed point in time in dependence on the target value of the gas pressure; andcontrolling the actuator as a result of the torque change request in such a way that the target value of the gas pressure prevails in the gas line section.2. The method according to claim 1 , which comprises determining the target value for ...

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30-03-2017 дата публикации

CONTROL SYSTEM OF TURBOCHARGED ENGINE

Номер: US20170089276A1
Принадлежит:

A control system of a turbocharged engine is provided, which includes a turbocharger having a compressor disposed in an intake passage, a bypass passage for bypassing the compressor in the intake passage, and a bypass valve provided to the bypass passage and for opening and closing the bypass passage. The control system includes a processor configured to execute a surge estimating module for estimating an occurrence of a surge, a bypass valve controlling module for opening the bypass valve when the surge estimating module estimates that the surge occurs, and a target air charge amount setting module for suppressing, when the bypass valve controlling module opens the bypass valve, a reduction of a target air charge amount until the opening operation of the bypass valve completes. 1. A control system of a turbocharged engine including a turbocharger having a compressor disposed in an intake passage , a bypass passage for bypassing the compressor in the intake passage , and a bypass valve provided to the bypass passage and for opening and closing the bypass passage , the control system comprising a processor configured to execute:a surge estimating module for estimating an occurrence of a surge;a bypass valve controlling module for opening the bypass valve when the surge estimating module estimates that the surge occurs; anda target air charge amount setting module for suppressing, when the bypass valve controlling module opens the bypass valve, a reduction of a target air charge amount until the opening operation of the bypass valve completes.2. The control system of claim 1 , wherein the processor is further configured to execute:a throttle valve opening estimating module for estimating an opening of a throttle valve for after a predetermined period of time from a current timing based on a target opening of the throttle valve that is set corresponding to an acceleration request from a vehicle driver;a throttle valve upstream-downstream pressure estimating module for ...

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30-03-2017 дата публикации

METHOD AND ENGINE CONTROLLER FOR DIAGNOSING WASTE GATE VALVE MALFUNCTION AND RELATED POWER GENERATION SYSTEM

Номер: US20170089286A1
Принадлежит:

A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented. 1. A method for diagnosing a waste gate valve malfunction in a power generation system , comprising:(i) determining an actual pressure differential across a throttle valve;(ii) determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system;(iii) determining an absolute difference between the actual pressure differential and the estimated pressure differential; and (a) determining an operating condition of the throttle valve; and', '(b) determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve., '(iv) comparing the absolute difference between the actual pressure differential and the estimated pressure differential with a threshold value, and, if the absolute difference between the actual pressure differential and the estimated pressure differential is greater than the threshold value,'}2. The method of claim 1 , comprising determining that the ...

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09-04-2015 дата публикации

METHODS AND SYSTEMS FOR DETECTING COMPRESSOR RECIRCULATION VALVE FAULTS

Номер: US20150096296A1
Принадлежит:

Methods are provided for identifying degradation in components of a compressor recirculation valve (CRV). One method may include inferring degradation of the CRV based on adaptation of a compressor surge line outside an expected range. 1. A method for an engine , comprising:indicating degradation of a compressor recirculation valve based on a surge line adaptation of a surge line on a compressor map stored in a controller of the engine.2. The method of claim 1 , wherein the surge line adaptation is learned over one or more drive cycles.3. The method of claim 2 , wherein learning the surge line adaptation includes learning a range of the surge line adaptations including a left surge line boundary and a right surge line boundary.4. The method of claim 3 , further comprising indicating a compressor recirculation valve opening amount less than a desired amount based on the surge line adapted to a right side of the right surge line boundary.5. The method of claim 4 , further comprising indicating the compressor recirculation valve opening amount greater than the desired amount based on the surge line adapted to a left side of the left surge line boundary.6. The method of claim 3 , wherein the surge line adaptation is learned based on one or more of a compressor surge event claim 3 , a number of surge events claim 3 , a tip-out greater than a threshold amount and the compressor not surging during the tip-out claim 3 , and a number of tip-outs claim 3 , each tip-out greater than the threshold amount and the compressor not surging during each of the tip-outs.7. The method of claim 6 , wherein the surge is detected based on a frequency of a throttle position sensor greater than a threshold frequency claim 6 , the sensor located downstream of the compressor.8. The method of claim 6 , wherein the surge line is adapted to the left of an initial surge line in response to the number of tip-outs greater than a threshold number of tip-outs.9. The method of claim 6 , wherein the ...

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09-04-2015 дата публикации

SHAFT SEALING SYSTEM FOR A TURBOCHARGER

Номер: US20150097345A1
Принадлежит:

The propensity for gas and soot leakage around a shaft, which extends through a bore which connects volumes of differing pressures (e.g., a turbocharger turbine housing and the ambient air), is minimized by the addition of a complementary pair of narrowing sealing surfaces which provide a seal against the passage of said gases and soot. Such sealing surfaces can be frusto-spherical or frusto-conical. A biasing element is operatively positioned to exert biasing forces on one or more structures to maintain the sealing surfaces in engagement with each other to form a seal. 150. A sealing system () for a turbocharger comprising:{'b': 18', '70', '61', '60, 'a rotatable element including a shaft () having an associated axis of rotation (), an inner portion () and an outer portion ();'}{'b': 60', '18, 'a structure operatively connected to the outer portion () of the shaft ();'}a structure having a bore, at least a portion of the rotatable element being received within the bore;{'b': 52', '54', '54', '61', '52, 'a pair of complementary narrowing sealing surfaces (, ), one of the sealing surfaces () being provided on the inner portion () of rotatable element and the other sealing surface () being provided on the structure having a bore;'}{'b': 58', '60', '18', '58', '60', '18', '66', '58', '68', '66', '52', '54, 'a biasing element () operatively positioned between the structure having a bore and the structure operatively connected to the outer portion () of the shaft (), the biasing element () exerting a force on the structure operatively connected to the outer portion () of the shaft () in a first direction (), and the biasing element () further exerting a force on the structure having a bore in a second direction () opposite to the first direction (), whereby the sealing surfaces (, ) are brought into engagement with each other to form a seal.'}218181822. The sealing system of claim 1 , wherein the shaft () is a VTG or wastegate pivot shaft () claim 1 , and the structure ...

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19-03-2020 дата публикации

SUPERCHARGING SYSTEM, POWER SUPPLY DEVICE FOR SUPERCHARGING SYSTEM, POWER SUPPLY CONTROL METHOD FOR SUPERCHARGING SYSTEM, AND ENGINE SYSTEM

Номер: US20200088092A1

A power supply device includes a first power supply circuit, a second power supply circuit, and a power supply-switching unit. The first power supply circuit includes a power storage device having a first capacity and supplies electricity of a first voltage to the electric motor. The second power supply circuit includes a power storage device having a second capacity smaller than the first capacity and supplies electricity of a second voltage higher than the first voltage to the electric motor. The power supply-switching unit supplies electricity from the second power supply circuit to the electric motor at the tune of starting an operation of the electric motor and thereafter supplies electricity from the first power supply circuit to the electric motor. 1. A power supply device for a supercharging system that includes:a first compressor disposed in an intake air flow passage in which intake air supplied to an engine is circulated and configured to compress the intake air by being driven;an electric motor that is configured to drive the first compressor;a second compressor disposed in the intake air flow passage independently from the first compressor and configured to compress the intake air; anda turbine disposed in an exhaust gas flow passage in which exhaust gas from the engine is circulated and configured to drive the second compressor by being rotated in accordance with the exhaust gas,the power supply device comprising:a first power supply circuit including a power storage device having a first capacity and configured to supply electricity of a first voltage to the electric motor;a second power supply circuit including a power storage device having a second capacity smaller than the first capacity and configured to supply electricity of a second voltage higher than the first voltage to the electric motor; anda power supply-switching unit that is configured to supply electricity from the second power supply circuit to the electric motor when an operation of ...

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09-04-2015 дата публикации

HEAT ISOLATING ACTUATOR LINKAGE

Номер: US20150098750A1
Принадлежит: BORGWARNER INC.

A heat isolating actuator linkage () that includes a rod end housing () including a bearing opening () with a rod end ball () disposed therein. A race insert () is disposed between the rod end housing () and the rod end ball (). A threaded portion () extends from the rod end housing () and may comprise male or female threads. A shield () extends from the rod end housing (). The shield () is integrally formed with the rod end housing (). The shield () extends around a majority of the rod end housing () and may extend to one side of the bearing opening (). Alternatively, a first portion () of the shield may extend towards one side of the bearing opening () and a second portion (932) of the shield may extend towards the other side. 1805905. A heat isolating actuator linkage ( , ) , comprising:{'b': 810', '910', '814', '914, 'a rod end housing (, ) including a bearing opening (, ) formed therethrough;'}{'b': 830', '930', '810', '910, 'a shield (, ) extending from the housing (, ); and'}{'b': 812', '912', '814', '914, 'a rod end ball (, ) disposed in said bearing opening (, ).'}2805905816916810910812912. The heat isolating actuator linkage ( claim 1 , ) according to claim 1 , further comprising a race insert ( claim 1 , ) disposed between the rod end housing ( claim 1 , ) and the rod end ball ( claim 1 , ).3805905818918810910. The heat isolating actuator linkage ( claim 1 , ) according to claim 1 , further comprising a threaded portion ( claim 1 , ) extending from the rod end housing ( claim 1 , ).4805905818918. The heat isolating actuator linkage ( claim 3 , ) according to claim 3 , wherein the threaded portion ( claim 3 , ) comprises male threads.5805905830930810910. The heat isolating actuator linkage ( claim 1 , ) according to claim 1 , wherein the shield ( claim 1 , ) is integrally formed with the rod end housing ( claim 1 , ).6805905830930810910. The heat isolating actuator linkage ( claim 1 , ) according to claim 1 , wherein the shield ( claim 1 , ) extends around ...

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01-04-2021 дата публикации

ENGINE CONTROL APPARATUS

Номер: US20210095603A1
Автор: MURAMATSU Konosuke
Принадлежит:

An engine control apparatus includes a throttle valve, an accelerator opening detector, a throttle opening controller, and an intake air density detector. The throttle valve is configured to regulate an intake air volume of an engine. The accelerator opening detector is configured to detect an accelerator opening that is an operation amount of an accelerator operation member with which a driver operates an accelerator. The throttle opening controller is configured to increase a throttle opening of the throttle valve in accordance with an increase in the accelerator opening. The intake air density detector is configured to detect information about an intake air density of the engine. In a low intake air density state where the intake air density is a predetermined value or lower, the throttle opening controller decreases a sensitivity of the throttle opening relative to the accelerator opening in a partial range of a range where the accelerator opening is variable. 1. An engine control apparatus comprising:a throttle valve configured to regulate an intake air volume of an engine;an accelerator opening detector configured to detect an accelerator opening that is an amount of operation of an accelerator operation member on which a driver performs an accelerator operation;a throttle opening controller configured to increase a throttle opening of the throttle valve in accordance with an increase in the accelerator opening; andan intake air density detector configured to detect information about an intake air density of the engine, whereinin a low intake air density state where the intake air density is equal to or lower than a predetermined value, the throttle opening controller decreases a sensitivity of the throttle opening relative to the accelerator opening in a partial range of a range within which the accelerator opening is variable.2. The engine control apparatus according to claim 1 , whereinthe throttle opening controller increases an amount of decrease in the ...

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05-04-2018 дата публикации

PROTECTIVE DEVICE FOR PREVENTING EXHAUST GAS ESCAPE

Номер: US20180094566A1
Принадлежит:

Methods and systems are provided for a coupling device and enclosure for an interface through which exhaust gas flow. The coupling device secures two sides of the interface to one another and the enclosure surrounds the interface and seals exhaust gases within the enclosure in an event that the interface becomes separated. 1. An arrangement of an internal combustion engine with an exhaust gas section , in which at least one turbine with a first flange and an exhaust gas aftertreatment device with a second flange are arranged , which turbine and exhaust gas aftertreatment device are connected to one another at their flanges by means of at least one band bracket , wherein a protective device is arranged in the region of the turbine , the band bracket and the exhaust gas aftertreatment device.2. The arrangement as claimed in claim 1 , in which the protective device includes at least one first part and at least one second part which overlap one another claim 1 , the first part having a greater diameter in the overlapping region than the second part.3. The arrangement as claimed in claim 2 , in which the first part and the second part of the protective device are of telescopic configuration.4. The arrangement as claimed in claim 2 , in which the first part of the protective device is welded to the exhaust gas section upstream of the turbine claim 2 , and the second part is welded to the exhaust gas section downstream of the exhaust gas aftertreatment device.5. The arrangement as claimed in claim 2 , in which the first part of the protective device is clamped to the exhaust gas section upstream of the turbine claim 2 , and the second part is clamped to the exhaust gas section downstream of the exhaust gas aftertreatment device.6. The arrangement as claimed in claim 1 , in which the material of the protective device is temperature-resistant.7. The arrangement as claimed in claim 6 , in which the material of the protective device has a metal.8. The arrangement as claimed in ...

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16-04-2015 дата публикации

CONTROLLER FOR INTERNAL COMBUSTION ENGINES

Номер: US20150101569A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An object of this invention is, with respect to a torque-demand-control type controller that subjects two kinds of actuators provided upstream and downstream in an intake passage to coordinated operations based on a requested torque for an internal combustion engine, to enable realization of a pulse-like torque change in a torque decreasing direction that is requested, for example, when performing an upshift operation in an electronically controlled automatic transmission. To achieve this object, according to a controller for an internal combustion engine of this invention, when a pulse component in a torque decreasing direction is included in a requested torque, a second requested torque that does not include the pulse component is generated. In this case, a first actuator provided on the downstream side in the intake passage is operated based on the requested torque. On the other hand, although a second actuator provided on the upstream side in the intake passage is operated based on the requested torque when there is not a valid value of the second requested torque, the second actuator is operated based on the second requested torque when there is a valid value of the second requested torque. 1. A controller for an internal combustion engine having a first actuator that is provided at a first position in an intake passage of the internal combustion engine and that acts on a pressure on a downstream side of the first position , and a second actuator that is provided at a second position that is upstream of the first position in the intake passage and that acts on a pressure on a downstream side of the second position , the controller comprising:a first requested torque generation element that generates a first requested torque with respect to the internal combustion engine based on a request from a driver and a request from an on-board system;a second requested torque generation element that, in a case where a pulse component in a torque decreasing direction is ...

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16-04-2015 дата публикации

METHOD OF ESTIMATING THE BOOST CAPABILITY OF A TURBOCHARGED INTERNAL COMBUSTION ENGINE

Номер: US20150101578A1
Принадлежит:

A method of estimating a boost pressure of a turbocharger is disclosed. A throttle body temperature is estimated as a function of engine operating parameters. An intake air mass flow and an exhaust mass flow are estimated as a function of the throttle body temperature. A turbine inlet pressure and a turbine outlet pressure are estimated as a function of engine operating parameters. A turbine speed is estimated as a function of the intake air mass flow, exhaust mass flow and turbine inlet and outlet pressure. The boost pressure is estimated as a function of the turbine speed. Estimation of the maximum boost pressure of a turbocharged internal combustion engine is performed method cyclically as follows: estimating a throttle temperature, estimating an air mass flow and an exhaust mass flow, estimating a turbine inlet pressure and a turbine outlet pressure, estimating a turbine speed, and estimating the maximum boost pressure. 114-. (canceled)15. A method of controlling a boost pressure of a turbocharger for internal combustion engine comprising:estimating a throttle body temperature as a function of an engine operating parameters;estimating an intake air mass flow and an exhaust mass flow as a function of said throttle body temperature;estimating a turbine inlet pressure and a turbine outlet pressure as a function of at least one engine operating parameter;estimating a turbine speed as a function of said intake air mass flow, exhaust mass flow and turbine inlet and outlet pressure;estimating a boost pressure as a function of said turbine speed; andgenerating a control signal based on said estimated boost pressure to control the turbocharger.16. The method according to further comprising controlling the turbocharger using the control signal to adjust the boost pressure for generating the estimated boost pressure.17. The method according to claim 15 , wherein the method is performed cyclically.18. The method according to claim 17 , wherein the method is performed ...

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28-03-2019 дата публикации

CONTROL APPARATUS FOR ENGINE

Номер: US20190093585A1

The control apparatus for an engine includes: a first controller that sets a valve-opening timing of an intake valve of the engine in response to an amount of intake air; and a second controller that sets an injection start time of a fuel injector of the engine in response to the amount of intake air. In a case where the amount of intake air is within a first range being equal to or more than a predetermined value, the first controller advances the valve-opening timing as compared with a case where the amount of intake air is equal to the predetermined value, and the second controller delays the injection start time as compared with a case where the amount of intake air is within a second range being less than the predetermined value. 1. A control apparatus for an engine , the engine comprising a fuel injector that injects fuel into an intake port , a variable valve mechanism that changes opening/closing timings of at least an intake valve , and a first detector that detects an amount of intake air flowing through an intake passage of the engine , the control apparatus comprising:a first controller that sets a valve-opening timing of the intake valve in response to the amount of intake air; anda second controller that sets an injection start time of the fuel injector in response to the amount of intake air, wherein:in a case where the amount of intake air is within a first range being equal to or more than a predetermined value, the first controller advances the valve-opening timing as compared with a case where the amount of intake air is equal to the predetermined value; andin the case where the amount of intake air is within the first range, the second controller delays the injection start time as compared with a case where the amount of intake air is within a second range being less than the predetermined value.2. The control apparatus according to claim 1 , wherein:the first controller advances the valve-opening timing as the amount of intake air increases ...

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14-04-2016 дата публикации

INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE THEREOF

Номер: US20160102603A1
Принадлежит:

In an internal combustion engine provided with a turbocharger, a throttle valve, and an actuator, if there is a request for switching from stoichiometric combustion to lean combustion and also there is a request for raising a supercharging pressure after the switching of combustion to a pressure higher than the supercharging pressure before the switching of combustion, the supercharging pressure reserve control for raising the supercharging pressure while a requested intake air amount S required for realizing a requested torque of the internal combustion engine in the stoichiometric combustion is maintained is executed by using the throttle valve and the actuator. After the supercharging pressure reserve control is finished, the switching of combustion is executed. When an actual supercharging pressure reaches the lower of a requested supercharging pressure L and a realizable supercharging pressure, the supercharging pressure reserve control is finished. 1. A control device for controlling an internal combustion engine that includes: (i) a supercharger including a compressor arranged in an intake passage of the internal combustion engine and supercharging intake air; (ii) a throttle valve arranged in the intake passage on a downstream side from the compressor and adjusting an intake air amount; and (iii) an actuator configured to control a supercharging pressure by adjusting a driving force of the compressor , the control device comprising:reserve control executing means for executing supercharging pressure reserve control in which, when there is (1) a request for switching of combustion from a first combustion at an air/fuel ratio at a stoichiometric air/fuel ratio or less to a lean combustion at an air/fuel ratio larger than the stoichiometric air/fuel ratio and (2) also there is a request for raising the supercharging pressure after the switching of combustion to a pressure higher than the supercharging pressure before the switching of combustion, the ...

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14-04-2016 дата публикации

METHOD FOR REDUCING ENGINE OIL DILUTION

Номер: US20160102623A1
Принадлежит:

Various systems and methods are described for reducing engine oil dilution in a boosted engine. One method comprises, when engine oil dilution is higher than a first threshold and engine oil temperature is below a temperature threshold, adjusting a position of an air induction system (AIS) throttle, generating a vacuum, and providing the vacuum to a crankcase of the boosted engine to enhance fuel evaporation from engine oil. The providing of vacuum may be discontinued when engine oil dilution is lower than the first threshold and/or when engine oil temperature rises above the temperature threshold. 1. A method for a boosted engine comprising: adjusting a position of an air induction system (AIS) throttle;', 'generating a vacuum; and', 'applying the vacuum to a crankcase to enhance fuel evaporation from engine oil., 'when engine oil dilution is higher than a first threshold and engine oil temperature is below a temperature threshold,'}2. The method of claim 1 , wherein the adjusting includes adjusting the AIS throttle to a more closed position.3. The method of claim 2 , wherein the applying of vacuum is disabled when engine oil dilution is lower than the first threshold.4. The method of claim 3 , wherein the applying of vacuum is disabled when engine oil temperature is higher than the temperature threshold.5. The method of claim 4 , further comprising adjusting the position of the AIS throttle responsive to a change in an engine operating parameter.6. The method of claim 5 , wherein the engine operating parameter is engine torque.7. The method of claim 6 , wherein the position of the AIS throttle is adjusted to a more open position in response to an increase in engine torque.8. The method of claim 4 , wherein the applying of vacuum is disabled in response to a level of pressure in crankcase decreasing below a pressure threshold.9. The method of claim 1 , further comprising adjusting one or more of a fuel injection amount and fuel injection timing based on fuel vapors ...

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03-07-2014 дата публикации

TURBO-CHARGER SYSTEM

Номер: US20140182287A1
Принадлежит:

A turbocharger system includes a compressor that is connected with a turbine operated by an exhaust gas by a rotary shaft and compresses and supplies external gas to a combustion chamber of an engine, an intercooler and a throttle valve disposed in an intake line connecting the compressor with the combustion chamber of the engine, a branch line connecting an intake line between the compressor and the intercooler with an intake line between the intercooler and the throttle valve, a shutoff valve disposed in the branch line to selectively open/close the branch line, and an engine control unit controlling the operation of the shutoff valve 1. A turbocharger system comprising:a compressor connected with a turbine operated by an exhaust gas by a rotary shaft and compresses and supplies external gas to a combustion chamber of an engine;an intercooler and a throttle valve disposed in an intake line connecting the compressor with the combustion chamber of the engine;a branch line connecting an intake line between the compressor and the intercooler with an intake line between the intercooler and the throttle valve;a shutoff valve disposed in the branch line to selectively open/close the branch line; andan engine control unit controlling the operation of the shutoff valve.2. The turbocharger system of claim 1 , wherein the shutoff valve is an electronic solenoid valve turned ON and OFF in response to a control signal.3. The turbocharger system of claim 1 , wherein the engine control unit opens the shutoff valve such that compressed air supplied from the compressor is supplied directly to the upstream side further than the throttle valve without passing through the intercooler claim 1 , in sudden acceleration of a vehicle.4. The turbocharger system of claim 1 , wherein the engine control unit removes oversupplied pressure due to the compressed air at the upstream side further than the throttle valve to the upstream side further than the intercooler by opening the shutoff valve ...

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23-04-2015 дата публикации

INTERNAL COMBUSTION ENGINE, VEHICLE EQUIPPED WITH SAME, AND CONTROL METHOD THEREFOR

Номер: US20150107564A1
Автор: Itoh Hikaru
Принадлежит: Isuzu Motors Limited

A supercharger and a turbocharger are provided, as well as a load sensor detecting a traction load of a trailer towed by a semi-trailer and being arranged in a coupler. A combined supercharging and turbocharging is performed by the supercharger and the turbocharger when the traction load is heavier than a previously defined traction determination value. Only supercharging is performed by the turbocharger when the traction load is not more than the traction determination value. 1. An internal combustion engine including a supercharger and a turbocharger , and comprising:a control device which switches between a combined supercharging performed by the supercharger and the turbocharger and a single supercharging performed only by the turbocharger, according to a traction load which a vehicle tows or a loading load loaded on the vehicle.2. The internal combustion engine according to claim 1 , whereinthe internal combustion engine further comprises a load sensor which detects the traction load or the loading load; andthe control device includes:a load determining unit configured to determine whether or not the traction load or the loading load is greater than a previously defined determination value;a combined supercharging unit configured to perform the combined supercharging by the supercharger and the turbocharger on the basis of an operating state of the vehicle in a case where the traction load or the loading load is greater than the determination value; anda single supercharging unit configured to perform the single supercharging only by the turbocharger in a case where the traction load or the loading load is not more than the determination value.3. The internal combustion engine according to claim 1 , whereinthe internal combustion engine further comprises a low pressure exhaust gas recirculation system which recirculates an exhaust gas in a downstream side of the exhaust gas in the turbocharger, and a high pressure exhaust gas recirculation system which ...

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04-04-2019 дата публикации

CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

Номер: US20190101066A1
Принадлежит: Honda Motor Co.,Ltd.

In the disclosure, an F/B correction coefficient correcting a fuel injection amount so that a detected equivalence ratio detected by an LAF sensor becomes a target equivalence ratio is calculated by using a feedback control containing a predetermined gain, and a reference F/B correction coefficient is further set. By changing a valve overlap characteristic between an intake valve and an exhaust valve in a supercharging state, a scavenging control that scavenges a combustion chamber by blow-by of intake air is executed. During the scavenging control, when the F/B correction coefficient is changing relative to the reference F/B correction coefficient in a direction of further correcting the fuel injection amount to a rich side, the gain of the feedback control is reduced. 1. A control device of an internal combustion engine , the internal combustion engine comprising a supercharger that supercharges intake air , and being capable of changing a valve overlap characteristic between an intake valve and an exhaust valve , wherein the control device comprises:an air-fuel ratio sensor provided upstream of a turbine of the supercharger in an exhaust passage, detecting an air-fuel ratio of a mixture burning in a combustion chamber;a feedback correction value calculation part, calculating a feedback correction value for correcting a fuel injection amount so that a detected air-fuel ratio detected by the air-fuel ratio sensor becomes a target air-fuel ratio, by using a feedback control containing a predetermined gain;a reference feedback correction value setting part, setting a reference feedback correction value based on the feedback correction value;a scavenging control part, executing a scavenging control that scavenges the combustion chamber by causing a portion of the intake air flowing into the combustion chamber via the intake valve to flow out via the exhaust valve, by changing the valve overlap characteristic into a predetermined characteristic for scavenging control, ...

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23-04-2015 дата публикации

Exhaust-gas turbocharger

Номер: US20150110650A1
Автор: Ralf Christmann
Принадлежит: BorgWarner Inc

An exhaust-gas turbocharger ( 1 ) with a housing ( 2 ), a shaft ( 3 ) mounted in the housing ( 2 ), a compressor wheel ( 5 ) which is arranged on the shaft ( 3 ) and which has a plurality of blades ( 6 ), and a turbine wheel ( 4 ) which is arranged on the shaft ( 3 ) and which has a plurality of blades ( 6 ), with a rotary measurement arrangement having a pressure sensor ( 8 ), wherein the pressure sensor ( 8 ) is arranged to detect pressure fluctuations ( 10 ) in the gas at the compressor wheel ( 5 ) or turbine wheel ( 4 ).

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02-06-2022 дата публикации

Injector Diagnosis Device and Injector Diagnosis Method

Номер: US20220170427A1
Принадлежит:

An injector diagnosis device includes: an engine sound model generator configured to generate a normal engine sound model and an abnormal engine sound model based on the number of cylinders of the engine and a combustion pattern of the engine; an operating sound obtainment unit configured to obtain the operating sound of the engine operating with the combustion pattern; a frequency characteristics calculation unit configured to calculate the frequency characteristics of the operating sound obtained by the operating sound obtainment unit and an injector diagnosis unit configured to diagnose whether or not the injectors have a failure based on the frequency characteristics of the operating sound which is calculated by the frequency characteristics calculation unit and the normal engine sound model and the abnormal engine sound model which is generated by the engine sound model generator 1. An injector diagnosis device configured to diagnose a status of each of injectors installed in a multi-cylinder engine , wherein the injector injects fuel to a corresponding cylinder , said injector diagnosis device comprising:an engine sound model generator configured to generate a normal engine sound model and an abnormal engine sound model based on the number of the cylinders of the engine and a combustion pattern of the engine;an operating sound obtainment unit configured to obtain the operating sound of the engine operating with the combustion pattern;a frequency characteristics calculation unit configured to calculate the frequency characteristics of the operating sound obtained by the operating sound obtainment unit; andan injector diagnosis unit configured to diagnose whether or not the injectors have a mechanical failure based on the frequency characteristics of the operating sound which is calculated by the frequency characteristics calculation unit, and the normal engine sound model and the abnormal engine sound model which is generated by the engine sound model generator ...

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19-04-2018 дата публикации

Air compressor

Номер: US20180106184A1
Принадлежит: Individual

A supercharged internal combustion engine has a supercharger operable to selectively supply a mass of air from below through above atmospheric air pressure according to the operating requirements of the engine. The supercharger has a shuttle combined with a throttle valve that controls the mass of air directed to an air mass bypass opening and supplied to the internal combustion engine. The shuttle has rollers that ride on rails that allow the shuttle to move to open and close the air mass bypass opening in communication with a casing that directs a mass of atmospheric air and a bypass mass of air interfused with the mass of atmospheric air to an air mass inlet of the supercharger.

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19-04-2018 дата публикации

Apparatus and Method for Reducing Flow Noise in a Commercial Engine Vehicle

Номер: US20180106188A1
Автор: Lee Jae Gab, So Hyun Kee
Принадлежит: HYUNDAI MOTOR COMPANY

An apparatus for reducing flow noise in a commercial engine vehicle includes an actuator into which first compressed air generated according to operation of an accelerator pedal and second pressed air generated from an air tank of a vehicle are selectively introduced. The apparatus also includes a lift plate moving up and down in the actuator by a pressure of the first or second compressed air introduced thereinto. The apparatus also includes a waste gate valve operated by a pressure according to the up and down movement of the lift plate in the actuator, in order to bypass exhaust gas in a turbine when the waste gate valve is opened. 1. An apparatus for reducing flow noise in a vehicle , the apparatus comprising:an actuator configured to receive first compressed air generated according to operation of an accelerator pedal and second compressed air generated from an air tank of the vehicle;a lift plate configured to move up and down in the actuator by a pressure of the first or second compressed air introduced into the actuator; anda waste gate valve operable by a pressure according to the up and down movement of the lift plate in the actuator, in order to bypass exhaust gas in a turbine when the waste gate valve is opened.2. The apparatus of claim 1 , wherein the lift plate comprises:a first plate installed in a first passage within the actuator, the first plate configured to move up and down in the first passage by the pressure of the first compressed air introduced when the accelerator pedal is depressed; anda second plate installed in a second passage separated from the first passage within the actuator, the second plate configured to move up and down within the second passage by the pressure of the second compressed air received from the air tank when the accelerator pedal is released.3. The apparatus of claim 2 , wherein the actuator comprises a control valve installed on a connection passage that is branched from the second passage and is configured to ...

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19-04-2018 дата публикации

SURGE WEAR PREDICTOR FOR A TURBOCHARGER

Номер: US20180106262A1
Принадлежит:

A turbocharged device subject to a surge event during operation, the turbocharged device including a turbocharger having a controller and a bearing assembly, a first sensor configured to detect the oil pressure provided to the bearing assembly, a second sensor in operable communication with the turbocharger, where the controller is configured to determine the magnitude of the surge event based at least in part on a signal provided by the second sensor in response to the surge event, and where the controller is configured to determine the wear inflicted on the turbocharger during the surge event based at least in part on the magnitude of the surge event and a signal provided by the first sensor in response to the surge event. 1. A turbocharged device subject to a surge event during operation , the turbocharged device comprising:a turbocharger having a bearing assembly;a first sensor in operable communication with the turbocharger;a second sensor in operable communication with the turbocharger;a third sensor operable to detect the oil pressure provided to the bearing assembly; and determine a first preliminary surge score based at least in part on a signal provided by the first sensor in response to the surge event,', 'determine a second preliminary surge score based at least in part on a signal provided by the second sensor in response to the surge event,', 'determine a first weighted surge score based at least in part on the first preliminary surge score and a first weighting factor,', 'determine a second weighted surge score based at least in part on the second preliminary surge score and a second weighting factor, and', 'determine a combined surge score by combining the first weighted surge score and the second weighted surge score., 'a controller configured to2. The turbocharged device of claim 1 , wherein the controller is also configured to determine the wear inflicted on the turbocharger during the surge event based at least in part on the combined surge score ...

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30-04-2015 дата публикации

METHOD AND SYSTEM FOR ENGINE TORQUE CONTROL

Номер: US20150114345A1
Принадлежит:

Methods and systems are provided for improving vehicle torque control accuracy. Data points of an engine torque data set are adjusted en masse by an on-board vehicle controller while also being adjusted individually by an off-board controller. By adjusting engine operation based on a torque data set that is updated by each of the on-board and off-board controllers, engine torque errors can be reliably determined and compensated for. 1. A method for controlling vehicle torque , comprising:adjusting each data point of an engine torque data set with a slope and offset modifier from engine torque data on-board the vehicle;adjusting individual data points of the engine torque data set from engine torque data off-board the vehicle; andadjusting an engine airflow control based on the engine torque data set.2. The method of claim 1 , wherein adjusting airflow control includes adjusting a throttle of the engine.3. The method of claim 2 , wherein the engine is a turbocharged engine.4. The method of claim 1 , wherein adjusting airflow control includes adjusting airflow control of engine torque by controlling boost of a turbocharger of the engine.5. The method of claim 2 , wherein adjusting each data point with a slope and offset modifier from engine torque data on-board the vehicle includes adjusting each data point with the same slope and same offset modifier.6. The method of claim 2 , wherein adjusting individual data points from engine torque data off-board the vehicle includes adjusting one or more data points claim 2 , each of the one or more data points adjusted with different claim 2 , independent adjustments.7. The method of claim 2 , wherein adjusting on-board the vehicle includes adjusting using a first computation model having a first claim 2 , smaller number of parameters claim 2 , and wherein adjusting off-board the vehicle include adjusting using a second computation model having a second claim 2 , larger number of parameters.8. The method of claim 2 , wherein ...

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30-04-2015 дата публикации

METHODS AND SYSTEMS FOR ADJUSTING ENGINE AIRFLOW BASED ON OUTPUT FROM AN OXYGEN SENSOR

Номер: US20150114346A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for adjusting a throttle based on an intake oxygen sensor output. In one example, a method may include adjusting a position of a throttle based on a dilution threshold and a total aircharge dilution level, the total dilution aircharge level based on an output of an intake oxygen sensor. Additionally, spark timing may be adjusted based on the total aircharge dilution level. 1. An engine method , comprising:adjusting a position of a throttle based on a dilution threshold when a total aircharge dilution level is greater than the dilution threshold, the total aircharge dilution level based on an output of an intake oxygen sensor.2. The method of claim 1 , wherein the dilution threshold is based on a saturation vapor pressure at a throttle inlet temperature when exhaust gas recirculation is not flowing and wherein the dilution threshold is further based on a target exhaust gas recirculation rate when exhaust gas recirculation is flowing.3. The method of claim 1 , further comprising adjusting spark timing based on the total aircharge dilution level and wherein adjusting spark timing includes advancing spark timing when the total aircharge dilution level is over a threshold and a pedal position is above a threshold and advancing spark timing when the total aircharge dilution level is over the threshold and the pedal position is below a threshold position.4. The method of claim 1 , further comprising adjusting the position of the throttle based on the total aircharge dilution level when the total aircharge dilution level is less than the dilution threshold.5. The method of claim 4 , wherein adjusting the position of the throttle includes increasing an opening of the throttle as the total aircharge dilution level increases.6. The method of claim 1 , further comprising adjusting the position of the throttle based on a torque demand.7. The method of claim 1 , wherein the oxygen sensor is positioned in an intake passage claim 1 , downstream of a ...

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20-04-2017 дата публикации

CONTROL DEVICE OF TURBOCHARGED ENGINE

Номер: US20170107898A1
Автор: Nishio Takafumi
Принадлежит:

When it is detected that an exhaust cut valve is stuck in a closed state, a control device stops feedback control and maintains a wastegate valve in a completely open state in each of an open operation range and a closed operation range. When it is detected that the exhaust cut valve is stuck in an open state, the control device stops the feedback control and maintains the wastegate valve in the completely open state in the closed operation range, whereas the control device performs the feedback control in the open operation range. 1. A control device of a turbocharged engine ,the control device comprising:a turbocharger including a turbine disposed on an exhaust passage of the engine and a compressor disposed on an intake passage of the engine;an exhaust cut valve configured to be switched between an open state and a closed state to switch a flow velocity of an exhaust gas of the engine between two velocities that are high and low velocities in front of the turbine in the exhaust passage;an exhaust bypass passage through which the exhaust gas flows so as to bypass the turbine;a wastegate valve disposed on the exhaust bypass passage;a supercharging pressure detector configured to detect supercharging pressure of intake air supercharged by the compressor; and switch the exhaust cut valve between the open state and the closed state in accordance with an operation range of the engine and', 'perform feedback control for an opening degree of the wastegate valve such that actual supercharging pressure detected by the supercharging pressure detector becomes target supercharging pressure preset in accordance with an operation state of the engine in each of an open operation range where the exhaust cut valve becomes the open state and a closed operation range where the exhaust cut valve becomes the closed state, wherein:, 'a valve control device configured to'}the open operation range denotes a range where revolution of the engine is higher than predetermined revolution; ...

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20-04-2017 дата публикации

Diesel Engine Control Device and Control Method

Номер: US20170107929A1
Автор: UEHARA Isshou
Принадлежит:

A direct injection diesel engine is provided with a fuel injection nozzle which is capable of performing a multistage injection. In a middle-or-high load region, in order to reduce soot, an after-injection is performed immediately after a main injection. An injection timing of the after-injection is set from a map in accordance with a driving condition. During a transient time, the injection timing of the after-injection is corrected on a basis of a difference ΔP between an actual rail pressure rPrail and a target rail pressure tPrail. In a case where the injection timing after the correcting is more retardation angle side than a threshold value, the after-injection is inhibited. 1. A control apparatus for a direct injection diesel engine , the diesel engine having a fuel injection nozzle capable of performing a multi-stage injection and in which an after-injection is performed immediately after a main injection , the control apparatus comprising:means for setting a target fuel pressure on a basis of an engine revolution speed and a load and variably controlling a fuel pressure supplied to the fuel injection nozzle along the target fuel pressure;means for setting a base value of an injection timing of the after-injection on a basis of the engine revolution speed and the load; andmeans for correcting the base value of the injection timing of the after-injection toward an advance side in a case where an actual fuel pressure is higher than the target fuel pressure, on a basis of a difference between the detected actual fuel pressure and the target fuel pressure, during a transient time of the engine.2. The control apparatus for the direct injection diesel engine as claimed in claim 1 , wherein the diesel engine includes a turbosupercharger and the control apparatus further comprises:means for setting a target boost pressure on a basis of the engine revolution speed and the load; andmeans for correcting the base value of the injection timing of the after-injection ...

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11-04-2019 дата публикации

Method For Reducing Range Of Fluctuation Of Exhaust Emission Values Of Identically Contructed Engine Arrangements Of A Production Series

Номер: US20190107063A1
Автор: BRIER BERND, DECKER MARKO
Принадлежит:

A method for reducing the range of fluctuation of the exhaust emission values of identically constructed engine arrangements of a production series, each having an internal combustion engine and an exhaust after treatment system. After manufacturing identically constructed engines, their engine controls are placed into a calibration operating mode and the engines are operated in calibration operating mode. At least one exhaust gas state variable is recorded along the exhaust gas flow and the measurement value is compared with a desired value or desired value range defined for the production series. If necessary, at least one setting variable of the respective engine is adjusted so that the actual value corresponds to the desired value or lies in the desired value range. Then the calibration operating mode stopped, the engine controls are put into a normal operating mode, and the internal combustion engines are operated in the normal operating mode. 116.-. (canceled)17. A method for reducing a range of fluctuation of exhaust emission values of a plurality of identically constructed engine arrangements of a given production series , wherein each of the respective engine arrangements has an internal combustion engine and an exhaust after treatment system , the method comprising the following steps:manufacturing a plurality of identically constructed internal combustion engines;placing respective engine controls of the internal combustion engines into a calibration operating mode;operating the internal combustion engines in the calibration operating mode;recording at least one exhaust gas state variable at a point along an exhaust gas flow downstream of the respective internal combustion engine or between the respective internal combustion engine and an associated exhaust after treatment system;comparing an actual value of the respectively recorded exhaust gas state variable with a desired value or desired value range of a relevant exhaust gas state variable defined for ...

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