СПОСОБ РЕГУЛИРОВАНИЯ СТЕПЕНИ ОБОГАЩЕНИЯ В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ С УПРАВЛЯЕМЫМ ЗАЖИГАНИЕМ

FIELD: internal combustion engines.SUBSTANCE: invention relates to a method for regulating the degree of enrichment of an air-fuel mixture in an internal combustion engine with controlled ignition. Near the full load, the degree of enrichment is adjusted according to the first value (r1) of the degree of enrichment for pre-cooling of exhaust gases. When the temperature (θech) of exhaust gases reaches the first threshold (θ1) of the temperature, which is lower than the second threshold (θ2) of the temperature, the value of the degree of enrichment is increased gradually, for example linearly, from the first value (θ1) of the degree of enrichment to the maximum of the second value (r2) of the degree of enrichment, at which the temperature of exhaust gases is equal to the second threshold (θ2) of the temperature. If the temperature (θech) of exhaust gases reaches the specified second threshold (θ2), before the degree of enrichment reaches the second value (r2) of the degree of enrichment, the degree of enrichment is immediately adjusted to the specified second value (r2) of the degree of enrichment.EFFECT: increase in the reliability of the internal combustion engine by limiting the temperature of parts forming the exhaust circuit under heavy load.6 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 752 657 C2 (51) МПК F02D 41/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02D 41/14 (2021.05) (21)(22) Заявка: 2019132476, 09.03.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): РЕНО С.А.С (FR) Дата регистрации: 29.07.2021 16.03.2017 FR 1770257 (43) Дата публикации заявки: 16.04.2021 Бюл. № 11 (45) Опубликовано: 29.07.2021 Бюл. № 22 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.10.2019 2 7 5 2 6 5 7 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 6272850 B1, 2001.08.14. US 5239965 A, 1993.08.31. FR ...

УСТРОЙСТВО УПРАВЛЕНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к устройству управления для двигателя внутреннего сгорания. Задачей настоящего изобретения является надежная защита, например, каталитического нейтрализатора для очистки выхлопа от повреждения, когда применяемое топливо заменяется на топливо, имеющее другие свойства, во время работы. Устройство управления двигателем внутреннего сгорания работает на разном топливе, которое отличается по стехиометрическому соотношению количества воздуха к количеству топлива. Устройство управления содержит датчик выхлопного газа, установленный в выхлопном канале двигателя внутреннего сгорания, для генерирования выходного сигнала согласно соотношению количества воздуха к количеству топлива выхлопного газа; средство управления с обратной связью соотношением количества воздуха к количеству топлива для выполнения управления с обратной связью соотношением количества воздуха к количеству топлива в соответствии с выходным сигналом от датчика выхлопного газа; средство адаптации к топливу для ...

УСТРОЙСТВО ДЛЯ ЗАЩИТЫ КАТАЛИЗАТОРА И СПОСОБ ЗАЩИТЫ КАТАЛИЗАТОРА ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

FIELD: engines and pumps. SUBSTANCE: invention relates to device for protection of catalytic neutraliser and to method of protection of catalytic neutraliser for internal combustion engine. Device for protection of catalyst comprises: catalytic converter cleaning exhaust gases; unit for gathering data on layer temperature configured to obtain data on catalyst layer temperature for each of multiple catalyst areas along flow of exhaust gases; and fuel injection unit configured for fuel injection when determining need to increase amount of injected fuel for each of regions on the basis of corresponding catalyst layers temperature, in amount, which includes sum of increments of values required for corresponding regions. EFFECT: efficient protection against overheating in compliance with actual temperature distribution in catalytic neutraliser. 6 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 589 585 C1 (51) МПК F01N 11/00 (2006.01) F01N 3/20 (2006.01) F02D 41/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014148069/06, 30.05.2013 (24) Дата начала отсчета срока действия патента: 30.05.2013 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): КОНДО Синья (JP), ТАКАМА Ясуюки (JP), АСО Кодзи (JP) 01.06.2012 JP 2012-126030 (45) Опубликовано: 10.07.2016 Бюл. № 19 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.01.2015 (86) Заявка PCT: 2 5 8 9 5 8 5 (56) Список документов, цитированных в отчете о поиске: US 2012014410 A1, 19.01.2012. US 2011251779 A1, 13.10.2011. JP 2003343242 A, 03.12.2003. FR 2910535 A1, 27.06.2008. EP 2224109 A2, 01.09.2010. RU 2094624 C1, 27.10.1997. R U (73) Патентообладатель(и): ТОЙОТА ДЗИДОСЯ КАБУСИКИ КАЙСЯ (JP) (87) Публикация заявки PCT: C 1 C 1 IB 2013/001200 (30.05.2013) WO 2013/179131 (05.12.2013) R U 2 5 8 9 5 8 5 Адрес для переписки: 125009, Москва, а/я 332, ЗАО "ИНЭВРИКА" (54) УСТРОЙСТВО ДЛЯ ЗАЩИТЫ КАТАЛИЗАТОРА И СПОСОБ ЗАЩИТЫ КАТАЛИЗАТОРА ДЛЯ ...

СПОСОБ РЕГУЛИРОВАНИЯ СТЕПЕНИ ОБОГАЩЕНИЯ В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ С УПРАВЛЯЕМЫМ ЗАЖИГАНИЕМ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 132 476 A (51) МПК F02D 41/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019132476, 09.03.2018 (71) Заявитель(и): РЕНО С.А.С (FR) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ИССАРТЕЛЬ, Давид (FR) 16.03.2017 FR 1770257 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.10.2019 R U (43) Дата публикации заявки: 16.04.2021 Бюл. № 11 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/167406 (20.09.2018) R U (54) СПОСОБ РЕГУЛИРОВАНИЯ СТЕПЕНИ ОБОГАЩЕНИЯ В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ С УПРАВЛЯЕМЫМ ЗАЖИГАНИЕМ (57) Формула изобретения 1. Способ регулирования степени обогащения (r) двигателя внутреннего сгорания с управляемым зажиганием, при этом значение степени обогащения регулируют в области стехиометрического значения, когда двигатель не работает близко к полной нагрузке, и в области значения, более высокого, чем стехиометрическое значение, когда крутящий момент (C) двигателя превышает порог крутящего момента (Cs), меньший максимального крутящего момента (Cmax) двигателя, отличающийся тем, что, когда указанный крутящий момент (C) превышает указанный порог крутящего момента (Cs), он содержит: - этап (400), на котором указанное значение степени обогащения (r) регулируют по первому значению (r1) степени обогащения, превышающему стехиометрическое значение, когда значение температуры (θech) выхлопных газов двигателя ниже первого порога (θ1) температуры; - этап (800), на котором указанное значение степени обогащения (r) немедленно регулируют по второму значению (r2) степени обогащения, превышающему первое значение (r1) степени обогащения, когда указанное значение температуры (θech) превышает второй порог (θ2) температуры, при этом указанный второй порог температуры (θ2) превышает указанный первый порог (θ1); и Стр.: 1 A 2 0 1 9 1 3 2 4 7 6 A Адрес для переписки: 101000, Москва, ул. Мясницкая, д. 13, стр. 5, ООО "Союзпатент" 2 0 1 9 1 3 ...

Abgassteuerungssystem eines Verbrennungsmotors und Steuerungsverfahren eines Abgassteuerungssystems eines Verbrennungsmotors

Abgassteuerungssystem eines Verbrennungsmotors (1) mit einem AGR-Gerät (20), einem Dreiwege-Katalysator (6) und einer elektronischen Steuerungseinheit (10). Die elektronische Steuerungseinheit (10) ist konfiguriert, um das Luft-Kraftstoff-Verhältnis von einem in den Dreiwege-Katalysator einströmenden Abgas derart zu steuern, dass das Luft-Kraftstoff-Verhältnis, verglichen mit dem Luft-Kraftstoff-Verhältnis wenn die AGR-Steuerung nicht während der Ausführung der Kraftstoff-Absperr-Steuerung ausgeführt wird, ein höheres Luft-Kraftstoff-Verhältnis in einem Bereich des fetten Luft-Kraftstoff-Verhältnisses ist, wenn die elektronische Steuerungseinheit eine AGR-Steuerung während einer Ausführung einer Kraftstoff-Absperr-Steuerung ausführt und dann den Anfettungsvorgang ausführt, nachdem die Ausführung der Kraftstoff-Absperr-Steuerung endet.

Brennkraftmaschine mit einer Abgasanlage

Brennkraftmaschine mit zumindest zwei Zylindern mit je zwei Gaswechselauslassventilen und mit einer über die Gaswechselauslassventile Abgas führend verbindbare Abgasanlage, wobei in der Abgasanlage ein Turbinengehäuse mit einem Turbinenrad eines Abgasturboladers und in Strömungsrichtung eines Abgases hinter dem Turbinengehäuse eine erste Abgasreinigungsanlage angeordnet ist, wobei zwischen der Brennkraftmaschine und dem Turbinengehäuse ein erstes Abgasrohr von der Abgasanlage Abgas führend abzweigt und nach der ersten Abgasreinigungsanlage wieder in die Abgasanlage mündet, wobei der Abgasturbolader ein Twin-Scroll-Abgasturbolader ist, wobei zumindest zwei Zylinder entsprechend einer Zündreihenfolge der Brennkraftmaschine zu einer Zylindergruppe zusammen gefasst sind und je ein erstes Gaswechselauslassventil der Zylinder einer Zylindergruppe über ein zweites Abgasrohr mit einem ersten Scroll und je ein zweites Gaswechselauslassventil der Zylinder einer Zylindergruppe über ein drittes Abgasrohr ...

Verfahren zum Betreiben eines Verbrennungsmotors und eines daran angeschlossenen Abgasnachbehandlungssystems mit einem Partikelfilter und einem SCR-Katalysator

Verfahren zum Betreiben eines Verbrennungsmotors, insbesondere eines Kraftfahrzeugs, und eines daran angeschlossenen Abgasnachbehandlungssystems mit mindestens einem Partikelfilter und mindestens einem SCR-Katalysator, dadurch gekennzeichnet, dass nach einer Regeneration des Partikelfilters über das passive Zuwarten im Normalbetrieb des Verbrennungsmotors hinaus eine Anhebung des Frischluftmassenstroms durch den Verbrennungsmotor vorgenommen wird.

System for controlling particulate filter temperature

CONTROL SYSTEM AND PROCEDURE FOR COMBUSTION ENGINE

PROCEEDED OF TEMPERATURE CONTROL CONVERGENCE FAST FOR LAREGENERATION Of a FILTER HAS PARTICLES, AND DEVICE FOR SA IMPLEMENTED

L'invention concerne un procédé de régulation de température pour la régénération d'un filtre à particules d'un moteur à injection alimenté en comburant par un compresseur entraîné par une turbine, ce procédé comprenant des opérations consistant à produire des consignes (KTef, KTam) et des mesures (MTef, MTam) de la température d'entrée du filtre et en amont de la turbine, et une variable d'action (VA1) agissant sur un ou plusieurs paramètres d'injection dans un sens propre à réduire l'écart entre une consigne et une mesure.Le procédé de l'invention consiste essentiellement à imbriquer la régulation de température en amont de la turbine et la régulation de température à l'entrée du filtre pour élaborer la variable d'action (VA1). The invention relates to a method for regulating the temperature for the regeneration of a particulate filter of an injection engine supplied with oxidizer by a compressor driven by a turbine, this method comprising operations consisting in producing set points (KTef, KTam ) and measurements (MTef, MTam) of the inlet temperature of the filter and upstream of the turbine, and an action variable (VA1) acting on one or more injection parameters in a sense capable of reducing the difference between a setpoint and a measurement. The method of the invention essentially consists in interweaving the temperature regulation upstream of the turbine and the temperature regulation at the inlet of the filter to develop the action variable (VA1).

PROCEEDED Of OPTIMIZATION OF the PERFORMANCES Of an INTERNAL COMBUSTION ENGINE Of a VEHICLE, SUCH AS a MOTOR VEHICLE

PROCEEDED OF CONTROL OF the TEMPERATURE OF GASES IN a CIRCUIT Of EXHAUST OF INTERNAL COMBUSTION ENGINE.

CONTROL DEVICE OF AN INTERNAL COMBUSTION VEHICLE ENGINE HAS IMPROVED SCANNING STRATEGY

Post-processing unit i.e. oxidation catalyst, internal temperature controlling method for internal combustion engine, involves adjusting gas composition to compensate difference between input and setting power by modifying potential power

L'invention a pour objet un procédé de contrôle de la température interne d'un catalyseur dans le circuit d'échappement (2) d'un moteur (10), dans lequel le catalyseur (21) est soumis périodiquement à des phases de régénération par élévation de la température des gaz à une température de consigne. Selon l'invention, à partir de la température (Te) et du débit (Qech) des gaz, et compte tenu de leur composition, on détermine la puissance de consigne Wc nécessaire à l'obtention de la température de consigne T5 et la puissance entrante We correspondant à la somme de la puissance de chauffage direct due à la température Te des gaz et de leur puissance potentielle de réaction exothermique Wexo dans le catalyseur (21) et l'on ajuste la composition des gaz avant l'entrée dans le catalyseur (21) de façon à compenser la différence entre la puissance entrante We par une modification correspondante de la puissance potentielle de réaction exothermique.

CONTROL OF FILTER REGENERATION

A system comprises an engine including an exhaust system with a particle filter operable to collect particulate matter in exhaust produced by the engine, a sensor arrangement, a controller, and one or more engine control devices. The sensor arrangement provides a first sensor signal representative of oxygen in the exhaust and a second sensor signal representative of a temperature of the particle filter. The controller regulates operation of the particle filter in response to the sensor arrangement. The controller is structured to generate one or more output signals corresponding to a minimum exhaust flow rate as a function of the first and second sensor signals. The control devices are responsive to the one or more output signals to provide the minimum exhaust flow rate to the filter.

Control device, system, control method, power control device, gas turbine, and power control method

Provided is a control device of a gas turbine including a compressor, a combustor, and a turbine. The control device executes load control of allowing an operation control point for operation control of a gas turbine to vary in response to a load of the gas turbine. The operation of the gas turbine is controlled on the basis of a rated temperature adjustment line for temperature adjustment control of a flue gas temperature at a predetermined load to a rated flue gas temperature at which performance of the gas turbine becomes rated performance, a preceding setting line for setting of the flue gas temperature at the predetermined load to a preceding flue gas temperature that becomes lower in precedence to the rated flue gas temperature, and a limit temperature adjustment line for temperature adjustment control.

CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

To provide a control apparatus for an internal combustion engine that, in a turbocharged internal combustion engine including a waste gate valve, can favorably prevent an exhaust system part disposed downstream of a turbine from overheating, regardless of opening of the waste gate valve. The control apparatus includes a turbocharger having a turbine which is operative by exhaust energy and is disposed in an exhaust passage. The control apparatus further includes a WGV for opening or closing an exhaust bypass passage that bypasses the turbine. Timing to start fuel quantity increase control for preventing an exhaust system part, such as a catalyst, from overheating is advanced when the WGV is in an open state than when the WGV is in a closed state.

System for controlling particulate filter temperature

A system for controlling the temperature of a particulate filter coupled to an exhaust outlet of an internal combustion engine includes a controller responsive to volumetric flow and temperature of exhaust gas to determine a filter regeneration parameter. In a hybrid electric-engine vehicle application, various control strategies are implemented as a function of the regeneration parameter to control exhaust gas temperature suitably for proper regeneration of the particulate filter. Such strategies include shifting the duty cycle of the engine toward lower engine speed operation along lines of constant power output, modifying the ratio of electrical power and engine power and controlling recharging of the battery supplying electrical energy to the vehicle's electric drive motor under vehicle deceleration conditions. In vehicle applications including a transmission coupled directly to the engine, shift points of the transmission are modified as a function of the regeneration parameter to ...

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A control device for the internal combustion engine is provided with a carbon dioxide concentration control part configured to cause a concentration of carbon dioxide in exhaust flowing into the filter to decrease when the temperature of the filter becomes a predetermined first temperature setting or more and less than a predetermined second temperature setting. The first temperature setting is made a temperature selected from a temperature band at which ash deposited on the filter can be made to be separate from the filter when the inside of the filter is in an atmosphere where the concentration of carbon dioxide is lower than when it is in an exhaust atmosphere. The second temperature setting is made a temperature set so as to prevent excessive temperature rise of the catalyst device.

CONTROL DEVICE OF HYBRID VEHICLE

Provided is a control device of a hybrid vehicle powered by an internal-combustion engine and a motor, wherein a catalyst that purifies exhaust gas is located in an exhaust passage of the internal-combustion engine, and the control device comprises: a learning unit configured to, during operation of the internal-combustion engine, learn a parameter for controlling a rotation speed of the internal-combustion engine so that a rotation speed of the internal-combustion engine during idling operation is equal to a target rotation speed; and a controller configured to stop the internal-combustion engine when a state where a correction amount of the parameter to cause the rotation speed during idling operation to be equal to the target rotation speed is equal to or greater than a predetermined value continues for equal to or greater than a predetermined time period, the correction amount being obtained by learning by the learning unit.

Fuel injection control apparatus and fuel injection control method for internal combustion engine

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A control device for an internal combustion engine is mounted on a vehicle, and includes an engine, a catalyst and a control unit. The engine is a bifuel engine using gas fuel and liquid fuel as its fuel source. The control unit makes an air fuel ratio rich and increases a proportion of the gas fuel if a temperature of the catalyst is higher than a predetermined upper limit value at a time when the liquid fuel is used.

СПОСОБ И УСТРОЙСТВО, ОТНОСЯЩИЕСЯ К ОГРАНИЧЕНИЮ ТЕМПЕРАТУРЫ ДОЗАТОРА В СИСТЕМЕ SCR

FIELD: transport. SUBSTANCE: invention relates to method relevant to SCR system for engine exhaust gases purification. Proposed invention consists in the following: method relates to SCR system for engine exhaust gases purification (150), which system contains batcher (250) placed in thermal contact with engine exhaust system and designed to feed chemical reducing agent to exhaust pipe (240) of exhaust system and includes phase of determination (s340) if there is undesired level of batcher (250) temperature. The method also includes phase (s360) of exhaust pipe (240) temperature limiting if undesired level of temperature is detected. Also, the proposed invention relates to computer software product containing program code (P) for computer (200; 210; 400) designed for implementation of the method according to the invention. The invention also relates to device and vehicle (100) equipped with the proposed device. EFFECT: improved efficiency of SRC system. 17 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 530 681 C2 (51) МПК F01N 11/00 (2006.01) F01N 3/20 (2006.01) F02D 41/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013102499/06, 20.06.2011 (24) Дата начала отсчета срока действия патента: 20.06.2011 (72) Автор(ы): ЛИЛЬЕСТРАНД Андреас (SE), БРЕМБЕРГ Пер (SE) (73) Патентообладатель(и): СКАНИА СВ АБ (SE) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.07.2014 Бюл. № 21 R U 21.06.2010 SE 1050648-3 (45) Опубликовано: 10.10.2014 Бюл. № 28 2008295514 A1, 04.12.2008. WO 2010003424 A1, 14.01.2010. DE 102007000666 A1, 10.07.2008. US 6539708 B1, 01.04.2003. DE 102004050022 A1, 27.04.2006 (86) Заявка PCT: SE 2011/050798 (20.06.2011) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.01.2013 (87) Публикация заявки PCT: 2 5 3 0 6 8 1 WO 2011/162700 (29.12.2011) R U 2 5 3 0 6 8 1 (56) Список документов, цитированных в отчете о поиске: US 2009205316 A1, 20 ...

СИСТЕМА СИЛОВОЙ ПЕРЕДАЧИ

Изобретение относится к системам силовой передачи гибридного транспортного средства. Техническим результатом является предотвращение разрушения катализатора управляющего выхлопными газами. Результат достигается тем, что система силовой передачи включает в себя двигатель внутреннего сгорания с впрыском в проходы. Первый процесс запуска представляет собой процесс, в котором топливо помещается в цилиндр такта сжатия, когда двигатель остановлен, и на основе сохраненной позиции остановки проворота, зажигание выполняется в первом цикле цилиндра такта сжатия при запуске двигателя. Второй процесс запуска представляет собой процесс, в котором, на основе сохраненной позиции остановки проворота, впрыск топлива выполняется для цилиндра такта впуска в то время, когда двигатель остановлен, и на основе сохраненной позиции остановки проворота, зажигание выполняется в первом цикле цилиндра такта впуска при запуске двигателя. Когда температура катализатора в то время, когда запуск двигателя запрашивается ...

СПОСОБ И СИСТЕМА ДЛЯ УПРАВЛЕНИЯ ПРЕЖДЕВРЕМЕННЫМ ВОСПЛАМЕНЕНИЕМ

... 1. Способ для двигателя с наддувом, состоящий в том, что:во время работы в режиме с продуванием, уменьшают перекрытие клапанов в ответ на указание преждевременного воспламенения.2. Способ по п. 1, в котором работа в режиме с продуванием заключается в том, что направляют всасываемый воздух из впускного коллектора ниже по потоку от компрессора в выпускной коллектор выше по потоку от турбины с помощью положительного перекрытия клапанов около ВМТ в конце такта выпуска через один или более цилиндров двигателя, величина положительного перекрытия клапанов основана на условиях эксплуатации.3. Способ по п. 2, в котором условия эксплуатации включают в себя требование крутящего момента водителя и частоту вращения турбины, и при этом, работа в режиме с продуванием происходит в ответ на нажатие педали акселератора водителем.4. Способ по п. 2, в котором направление всасываемого воздуха через положительное перекрытие клапанов заключается в том, что настраивают устройство регулируемой установки фаз кулачкового ...

УСТРОЙСТВО ДЛЯ ЗАЩИТЫ КАТАЛИЗАТОРА И СПОСОБ ЗАЩИТЫ КАТАЛИЗАТОРА ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Устройство для защиты катализатора двигателя внутреннего сгорания, включающее:катализатор, предусмотренный в системе выпуска отработавших газов двигателя внутреннего сгорания и очищающий отработавшие газы;блок сбора данных о температуре слоя, сконфигурированный для получения информации о текущей температуре слоя катализатора; иблок увеличения количества впрыскиваемого топлива, сконфигурированный для увеличения количества впрыскиваемого топлива в двигатель внутреннего сгорания, когда текущая температура слоя превышает заданное значение для определения, при этомблок увеличения количества впрыскиваемого топлива сконфигурирован для увеличения количества впрыскиваемого топлива на первое значение приращения, полученное исходя из (i) первого базового значения приращения, которое получают исходя из рабочего состояния двигателя внутреннего сгорания, и (ii) поправочного коэффициента, который получают исходя из текущей температуры слоя и целевой температуры слоя, меньшей заданного значения для ...

ABGASREINIGUNGSVORRICHTUNG UND ABGASREINIGUNGSVERFAHREN FÜR VERBRENNUNGSMOTOR

Steuern der Temperatur eines Partikelfilters einer Abgasnachbehandlungsanlage während einer Regeneration des Partikelfilters durch Einstellen eines Massenstroms an Luft

Es wird ein Verfahren zum Steuern der Temperatur (T) eines Partikelfilters (142) einer Abgasnachbehandlungsanlage (140) während einer Regeneration des Partikelfilters (142) beschrieben, welcher in einem Abgastrakt (130) einer Brennkraftmaschine (100) angeordnet ist. Das Verfahren weist auf (a) ein Messen der Temperatur (T) des Partikelfilters (142), (b) ein Erfassen eines Beladungszustandes des Partikelfilters (142), und (c) ein Einstellen eines Massenstroms an Luft, welche den Partikelfilter (142) durchströmt, in Abhängigkeit von der gemessenen Temperatur (T) und dem erfassten Beladungszustand des Partikelfilters (142). Der Massenstrom an Luft wird dabei so eingestellt, dass der Partikelfilter (142) durch den Massenstroms an Luft gekühlt wird. Es wird ferner eine Anordnung, eine Brennkraftmaschine (100) sowie ein Computerprogramm zum Durchführen dieses Verfahrens beschrieben.

Motorabgastemperatursteuerung

Es sind die Verfahren und Systeme zum Verbessern eines Betriebs eines Motors bei höheren Drehzahlen und Lasten offenbart. In einem Beispiel kann Kraftstoff in ein Abgassystem des Motors eingespritzt werden, so dass Temperaturen der Abgassystemkomponenten verringert werden können, wenn der Motor bei höheren Drehzahlen und Lasten betrieben wird.

A method and system for an engine

Method of operating a selective catalytic reduction on filter of an automotive system

A method of operating a selective catalytic reduction on diesel particulate filter (SDPF) of an internal combustion engine exhaust gas aftertreatment system 270. The method comprises the steps of: performing an SDPF regeneration; obtaining SDPF inlet and outlet temperature values (preferably using temperature sensors 550, 560) during the regeneration; using the inlet and outlet temperature values to calculate a rate of increase of each of the inlet and outlet temperatures; calculating a ratio between the rate of increase of the outlet and inlet temperatures; and, if the calculated ratio is greater than a threshold thereof, modifying the exhaust gas composition - preferably reducing the oxygen quantity in the exhaust gas by operating an exhaust gas recirculation (EGR) valve 630 or an engine intake throttle valve. Apparatus comprising means for performing, and ECU configured for carrying out, and an computer program comprising a computer code suitable for, performing the method are also disclosed ...

Method of operating a selective catalytic reduction on filter of an automotive system

A method and system for cooling an exhaust gas treatment device

A method and system for improving a purge conversion efficiency of a Lean NOx Trap 72 coupled downstream of a lean-burn internal combustion engine 11 are disclosed. The method is operable to cool the LNT when a temperature threshold is exceeded during purging so as to reduce emissions.

A method of protecting a diesel particulate filter from overheating

Method for operating an internal combustion engine

PROCEDURE FOR THE ACHIEVEMENT OPTIMIZATION OF THE COMBUSTION ENGINE OF A VEHICLE AS FOR INSTANCE A CAR

Controller of internal combustion engine

METHOD FOR REGENERATING A PARTICLE FILTER TEMPERATURE BY BEARINGS IMPREGNATES

METHOD OF PURGING A NITROGEN OXIDE TRAP AND POWERING DEVICE THEREOF

Procédé de purge d'un piège à oxydes d'azote (12), ledit piège étant apte à stocker des oxydes d'azote émis par un moteur (1) à combustion interne de véhicule automobile dans un mode de fonctionnement normal du moteur en mélange pauvre et apte à les réduire sous l'action de carburant du moteur (1), ledit procédé comprenant : une étape (100) dans laquelle on détecte un besoin de purge du piège (12) lorsque la masse d'oxydes d'azotes (MNOx) stockée dans le piège atteint un seuil ; - une étape (700) de purge des oxydes d'azote, dans un mode de fonctionnement du moteur (1) en mélange riche, dans laquelle les oxydes d'azote sont réduits ; CARACTERISE EN CE QU'il comprend en outre - une étape de chauffage (200) du piège (12), qui débute lorsque le besoin de purge est détecté, et qui se poursuit jusqu'à ce que le piège (12) ait atteint une température (θmin) à laquelle l'efficacité de la purge (ϵred) est maximale ; et, - des étapes par lesquelles on maintient ensuite la température (0) du piège autour de ladite température (θmin) d'efficacité maximale, jusqu'à ce que l'étape de purge (700) puisse démarrer. Process for purging a nitrogen oxide trap (12), said trap being able to store nitrogen oxides emitted by a motor vehicle internal combustion engine (1) in a normal operating mode of the engine in a mixture poor and able to reduce them under the action of engine fuel (1), said method comprising: a step (100) in which a trap purge requirement (12) is detected when the mass of nitrogen oxides ( MNOx) stored in the trap reaches a threshold; a step (700) for purging the nitrogen oxides, in a mode of operation of the engine (1) in a rich mixture, in which the nitrogen oxides are reduced; CHARACTERIZED IN THAT it further comprises - a heating step (200) of the trap (12), which starts when the purge requirement is detected, and which continues until the trap (12) has reached a temperature (θmin) at which the purge ...

PROCESS OF ORDERING Of an ENGINE BY EXOTHERMIC REGENERATION Of a COMPONENT OF POSTPROCESSING OF EXHAUST FUMES

On forme une valeur prévisionnelle de la température du composant (22) en fonction d'une augmentation de température résultant des réactions exothermiques pendant la durée du mode de fonctionnement BA2 du moteur (10) réglée pour la régénération. On compare la valeur prévisionnelle à un seuil supérieur (T_max) et on modifie la commande du moteur (10) en cas de dépassement du seuil (T_max) pour que la valeur prévisionnelle formée en tenant compte de la commande modifiée ne dépasse pas la valeur de seuil (T_max). On forme la valeur prévisionnelle en tenant compte du sens de variation de la température actuelle du composant (22).

Exhaust gas temperature controlling method for motor vehicle, involves calculating variable acting on injection parameter, based on difference between measured value and sum of error signal and preset temperature value at turbines upstream

L'invention concerne un procédé de régulation de température pour la régénération d'un filtre à particules d'un moteur à injection alimenté en comburant par un compresseur entraîné par une turbine, ce procédé comprenant des opérations consistant à produire des consignes (KTef, KTam) et des mesures (MTef, MTam) de la température d'entrée du filtre et en amont de la turbine, et une variable d'action (VA1) agissant sur un ou plusieurs paramètres d'injection dans un sens propre à réduire l'écart entre une consigne et une mesure. Le procédé de l'invention consiste essentiellement à imbriquer la régulation de température en amont de la turbine et la régulation de température à l'entrée du filtre pour élaborer la variable d'action (VA1).

METHOD AND DEVICE FOR TREATING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE

METHODS FOR MITIGATING OVER-TEMPERATURE DURING AN EXHAUST GAS SYSTEM PARTICULATE FILTER DEVICE REGENERATION

Methods for mitigating over-temperature during an exhaust gas system particulate filter device regeneration are provided. The exhaust gas system can include an exhaust gas stream supplied by an exhaust gas source to a particulate filter device through an exhaust gas conduit. The methods can include detecting an over-temperature during a particulate filter regeneration, initiating one or more first mitigation strategies, and shutting down the exhaust gas source. The one or more first mitigation strategies can include inhibiting the particulate filter device regeneration, altering the exhaust gas source operating parameters, and activating a cooling fan. The exhaust gas source can include an internal combustion engine configured to power a vehicle, and the operating parameters can be altered by a torque limiter. 1. A method for mitigating over-temperature during an exhaust gas system particulate filter device regeneration , wherein the exhaust gas system includes an exhaust gas stream supplied by an exhaust gas source to a particulate filter device through an exhaust gas conduit , the method comprising:detecting an over-temperature during a particulate filter regeneration;initiating one or more first mitigation strategies, wherein the one or more first mitigation strategies include inhibiting the particulate filter device regeneration, altering the exhaust gas source operating parameters, and activating a cooling fan; andshutting down the exhaust gas source.2. The method of claim 1 , wherein the over-temperature is determined based on the temperature of the particulate filter device.3. The method of claim 1 , wherein the over-temperature is determined based on the temperature of a temperature-sensitive device proximate the exhaust gas system.4. The method of claim 3 , wherein the temperature-sensitive device comprises one or more of an anti-lock brake module.5. The method of claim 1 , wherein the exhaust gas source comprises an internal combustion engine configured to ...

CONTROL DEVICE AND CONTROL METHOD FOR SERIES HYBRID VEHICLE

A control device for a series hybrid vehicle, the series hybrid vehicle including: an engine, a catalyst that is disposed in an exhaust path of the engine, a generator that generates electric power using power output from the engine, a battery that stores the electric power generated by the generator, and a traction electric motor that is driven with electric power of the battery, the control device including an electronic control unit configured to: acquire information on a temperature of the catalyst; and, when the information on the temperature of the catalyst is information corresponding to the temperature of the catalyst being equal to or higher than a predetermined temperature, change an operating point of the engine to an operating point that reduces a temperature of the exhaust gas while generating the electric power by the generator. 1. A control device for a series hybrid vehicle , the series hybrid vehicle including:an engine,a catalyst that is disposed in an exhaust path of the engine and controls exhaust gas,a generator that generates electric power using power output from the engine,a battery that stores the electric power generated by the generator, anda traction electric motor that is driven with electric power of the battery, the control device comprising an electronic control unit configured to:acquire information on a temperature of the catalyst; andwhen the information on the temperature of the catalyst is information corresponding to the temperature of the catalyst being equal to or higher than a predetermined temperature, change an operating point of the engine to an operating point that reduces a temperature of the exhaust gas while generating the electric power by the generator.2. The control device for the series hybrid vehicle according to claim 1 , wherein:the electronic control unit is configured to move the operating point to a power generation operation line that reduces an amount of power generation of the generator at the same vehicle ...

СПОСОБ И УСТРОЙСТВО, ОТНОСЯЩИЕСЯ К ОГРАНИЧЕНИЮ ТЕМПЕРАТУРЫ ДОЗАТОРА В СИСТЕМЕ SCR

1. Способ, относящийся к системе SCR для очистки выхлопных газов из двигателя (150), содержащей дозатор (250), расположенный в тепловом контакте с системой выпуска двигателя и предназначенный для подачи восстанавливающего вещества в выхлопную трубу (240) системы выпуска, причем способ включает этап, на которомопределяют (s340), имеется ли нежелательный уровень температуры дозатора (250), отличающийся тем, что он включает этап, на котором:ограничивают (s360) температуру выхлопной трубы (240) путем управления работой двигателя, если обнаруживается нежелательный уровень температуры.2. Способ по п.1, отличающийся тем, что ограничение температуры достигается путем снижения максимального доступного крутящего момента у выходного вала двигателя (150).3. Способ по п.1 или 2, отличающийся тем, что ограничение температуры достигается путем воздействия на содержание EGR двигателя (150).4. Способ по п.1 или 2, отличающийся тем, что ограничение температуры достигается путем воздействия на моменты впрыска топлива у, по меньшей мере, одного цилиндра двигателя (150) или путем воздействия на время зажигания у, по меньшей мере, одного цилиндра двигателя (150).5. Способ по п.1 или 2, отличающийся тем, что нежелательный уровень температуры задают на основе характеристик восстанавливающего вещества.6. Способ по п.1 или 2, отличающийся тем, что этап, на котором определяют, имеется ли нежелательный уровень температуры дозатора (250), основывается на, по меньшей мере, одном из следующих этапов, на которых:измеряют температуру (Т1) непосредственно у дозатора (250);измеряют температуру у потока выхлопных газов в выхлопной трубе (240) ивычисляют температуру дозатора (250) посредств� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F01N 11/00 (13) 2013 102 499 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013102499/06, 20.06.2011 (71) Заявитель(и): СКАНИА СВ АБ (SE) Приоритет(ы): (30) Конвенционный приоритет: 21.06.2010 SE 1050648-3 (85) ...

Abgasströmungssystem zum Detektieren eines thermischen Ereignisses in einem Abgassystem auf Grundlage von Temperaturgradienten

Abgasströmungssystem für ein Fahrzeug, umfassend: zumindest eine Abgasnachbehandlungsvorrichtung, die in der Abgasströmung positioniert ist; mehrere Temperatursensoren, die an mehreren Orten in Bezug auf die zumindest eine Abgasnachbehandlungsvorrichtung positioniert und betreibbar sind, eine Abgastemperatur zu messen; einen Controller, der funktional mit den mehreren Temperatursensoren verbunden und mit einem Prozessor konfiguriert ist, der einen Algorithmus ausführt, der für jeden der Temperatursensoren: bestimmt, ob eine jeweilige minimale vorbestimmte Temperatur überschritten ist; bestimmt, ob ein jeweiliger vorbestimmter Temperaturgradient überschritten ist, falls die jeweilige minimale vorbestimmte Temperatur überschritten ist; bestimmt, ob eine jeweilige maximale vorbestimmte Temperatur für eine vorbestimmte Zeitperiode überschritten ist, falls der jeweilige vorbestimmte Temperaturgradient überschritten ist; einen Detektionsflag für eine vorbestimmte Zeitperiode setzt, wenn die jeweilige ...

Verfahren zur Steuerung eines Partikelfilters und Kraftfahrzeug

Betriebsverfahren (60) für ein Kraftfahrzeug (10) mit einem Motor (11), einem Zuluftstrang (12), einem Abgasstrang (13), einem in dem Abgasstrang (13) angeordneten Partikelfilter (22), einem Injektor (29, 68), der ausgebildet ist, Kraftstoff (31) in eine Brennkammer (34) des Motors (11) oder in den Abgasstrang (13) einzubringen, einem Niederdruck-Abgasrückführungsstrang (19), der ausgebildet ist, Abgas (36) aus dem Abgasstrang (13) von einer stromabwärts des Partikelfilters (22) angeordneten Niederdruck-Abgasentnahmestelle (24) an eine in dem Zuluftstrang (12) angeordnete Niederdruck-Abgaseinleitstelle (25) zu leiten, und einem Hochdruck-Abgasrückführungsstrang (45), der ausgebildet ist, Abgas (36) aus dem Abgasstrang (13) von einer stromaufwärts des Partikelfilters (22) angeordneten Hochdruck-Abgasentnahmestelle (46) an eine in dem Zuluftstrang (12) angeordnete Hochdruck-Abgaseinleitstelle (47) zu leiten, dadurch gekennzeichnet, dass zur Steuerung des Partikelfilters (22), wenn in einer ...

Method for operating an engine system

A method is disclosed for operating an engine system having an engine 10 with an emission control system including a lean NOx trap 70 (LNT) and a particulate filter (DPF) 76. The method includes, after lean exhaust gas air-fuel ratio regeneration of the particulate filter 76 at an elevated regeneration temperature, using a rich or intermittently rich exhaust air-fuel ratio for a duration lasting until the temperature of the lean NOx trap 70 falls to a minimum threshold temperature. The rich or intermittently rich operation is used to reactivate catalysts in the lean NOx trap 70 and reverse deactivation caused by the elevated temperature lean operation associated with the previous regeneration of the particulate filter 76.

Method of operating a selective catalytic reduction on filter of an automotive system

A method of protecting a diesel particulate filter from overheating

Disclosed is a method of operating a Diesel internal combustion engine which prevents overheating of a diesel particulate trap, DPF 15, when an engine 10 from which the diesel particulate trap 15 receives a flow of exhaust gas is idling and regeneration of the DPF 15 is occurring. The method comprises using an electric machine such as an electric motor/generator 16 to apply a load to the engine 10 and compensating for the increase in applied load by increasing an engine torque set point. The load provides a drag on the engine and allows the engine to operate with a richer air to fuel ratio than would normally be the case when idling. This causes the quantity of oxygen reaching the DPF 15 to drop, slowing the rate of soot combustion at the DPF 15 and thus lowering the temperature of the DPF 15. The embodiment uses a rechargeable battery-operated starter-generator as the electric motor. The electric motor may also be used to provide a limited torque boost to the engine when accelerated. An ...

PROTECT AN OXIDATION CATALYST UPSTREAM A PARTICLE FILTER FOR A DIESEL ENGINE BY DELIMITATION OF INJECTED FUEL

Control device, system, and control method, power control device, gas turbine, and power control method

METHOD AND DEVICE FOR REGULATING THE EXHAUST GAS TEMPERATURE OF AN INTERNAL COMBUSTION ENGINE

METHOD FOR CONTROLLING THE REGENERATION OF A PARTICLE FILTER

MOTEUR A COMBUSTION INTERNE COMPORTANT UN DISPOSITIF DE DEPOLLUTION DES OXYDES D'AZOTE ET PROCEDE DE COMMANDE

The method involves allowing an internal combustion heat engine (10) to take two operating modes, where emission rate of nitrogen oxides is greater than and lower than predetermined threshold in the operating modes, respectively. The nitrogen oxides are processed by a processing device (14) if temperature of exhaust gas in upstream of the processing device is greater than the predetermined threshold, where the processing device is chosen from a urea injecting device and a nitrogen oxides trap. Independent claims are also included for the following: (1) an internal combustion heat engine comprising a processing device (2) a vehicle comprising an internal combustion heat engine.

METHOD FOR ADJUSTING THE RICHNESS IN AN INTERNAL COMBUSTION ENGINE WITH CONTROLLED IGNITION

L'invention propose un procédé de réglage de la richesse (r) dans un moteur à combustion interne à allumage commandé, apte à limiter la température des pièces composant le circuit d'échappement à forte charge. Au voisinage de la pleine charge, la richesse est réglée à une première valeur de richesse (r1) pour pré-refroidir les gaz d'échappement. Quand la température des gaz d'échappement (θech) atteint un premier seuil de température (θ1), qui est inférieur à un second seuil de température (θ2) correspondant à une limite de fiabilité des pièces, la valeur de richesse est progressivement augmentée, par exemple linéairement, depuis la première valeur de richesse (r1) jusqu'à au maximum une seconde valeur de richesse (r2), à laquelle la température des gaz d'échappement est égale au second seuil de température (θ2). Si la température des gaz d'échappement (θech) atteint ledit second seuil (θ2) avant que la richesse ait atteint la seconde valeur de richesse (r2), la richesse est alors immédiatement réglée sur ladite seconde valeur de richesse (r2). The invention proposes a method for controlling the richness (r) in a spark-ignition internal combustion engine, able to limit the temperature of the components of the high-load exhaust circuit. In the vicinity of the full load, the richness is set to a first richness value (r1) to pre-cool the exhaust gas. When the temperature of the exhaust gases (θech) reaches a first temperature threshold (θ1), which is less than a second temperature threshold (θ2) corresponding to a reliability limit of the parts, the value of richness is progressively increased, for example linearly, from the first richness value (r1) to at most a second richness value (r2), at which the temperature of the exhaust gas is equal to the second temperature threshold (θ2). If the exhaust gas temperature (θech) reaches said second threshold (θ2) before the wealth has reached the second richness value (r2), the wealth is then ...

EXHAUST GAS PURIFICATION SYSTEM

LNT DESULFATION STRATEGY

A fuel reformer (12) is configured in an exhaust line upstream of a lean NOx trap (13). To desulfate the lean NOx trap (13), over a first period, fuel is provided to the exhaust to make the exhaust rich. While producing reformate, the reformer (12) is allowed to heat to a relatively large extent, typically at least about 75°C. Before the reformer (12) overheats, the provision of fuel is reduced and typically stopped entirely for a second period, over which the reformer (12) cools. The heating and cooling periods are repeated to complete the desulfation process. The reduced efficiency of operating the reformer (12) over an extended temperature range is more than compensated for by the benefits of extending the rich pulse ...

Exhaust purifying apparatus and exhaust purifying method for internal combustion engine

In an exhaust purifying apparatus for an internal combustion engine on a vehicle, heating control is executed for supplying fuel to exhaust purification catalysts, thereby increasing the catalyst bed temperature. The heating control is suspended when the vehicle is determined to be driving downhill. Adverse influences due to deactivation of the exhaust purification catalysts during the heating control are reliably avoided.

Control method of internal combustion engine

The invention provides a method for preferably controlling an internal combustion engine by precisely estimating a current value of a temperature of an exhaust device of an internal combustion engine provided with a variable valve, an exhaust turbo supercharger and the like, and controlling an affector of a temperature of an exhaust gas on the basis of a difference between a reference value of the exhaust device temperature and the current value of the exhaust device temperature. The method computes a temperature of an exhaust gas on the basis of a rotating speed, a charging efficiency, an ignition timing, an equivalent ratio, an external EGR rate, an exhaust valve opening timing, and a supercharging pressure, estimates a temperature of an exhaust device on the basis of the exhaust gas temperature, an amount of an intake air, a temperature of a fluid around the exhaust device and a flow rate around the exhaust device, and transiently corrects at least one of the ignition timing, the equivalent ...

Method for controlling an internal combustion engine in connection with an exothermal regeneration of an exhaust gas aftertreatment component

A method is presented for controlling an internal combustion engine (10), which includes an exhaust gas system (12) having an exhaust gas aftertreatment component (22) that temporarily stores exhaust gas constituents and can be regenerated, wherein an expected value for a temperature of the exhaust gas aftertreatment component (22) is formed as a function of an increase in temperature, which arises as a result of exothermal reactions during the duration of an operating mode (BA2) of the internal combustion engine (10) which is set for the regeneration of said exhaust gas aftertreatment component (22), wherein the expected value is compared with an upper threshold value (T_max) and the control of said internal combustion engine (10) is changed when the threshold value (T_max) is exceeded, such that an expected value formed while taking the changed control into account does not exceed said threshold value (T_max). The method is thereby characterized in that a direction of change of a current ...

Fuel injection control apparatus and fuel injection control method for internal combustion engine

An internal combustion engine includes an in-cylinder injection valve and an intake passage injection valve. A control apparatus of the engine determines whether the temperature of a component located in the exhaust passage is higher than or equal to a predetermined temperature. When the temperature of the component is higher than or equal to the predetermined temperature, the control apparatus increases, without changing the total amount of fuel supplied to the cylinder, the ratio of a fuel injection amount of the intake passage injection valve to a fuel injection amount of the in-cylinder injection valve compared to a case where the temperature of the component is not higher than or equal to the predetermined temperature. Therefore, the catalyst is reliably prevented from being overheated, while preventing the fuel economy from deteriorating.

AIR/FUEL RATIO CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A catalyst (52) having an oxidization capability is provided in an exhaust passage. After a rich control for controlling the air/fuel ratio of a mixture formed in a combustion chamber (25) to be an air/fuel ratio richer than the stoichiometric air/fuel ratio, a lean control is carried out so that the air/fuel ratio of the mixture formed in the combustion chamber is controlled to be an air/fuel ratio leaner by a predetermined degree than the stoichiometric air/fuel ratio, or the air/fuel ratio of the mixture formed in the combustion chamber is controlled to temporarily be the air/fuel ratio leaner by the predetermined degree than the stoichiometric air/fuel ratio. If the lean control is carried out after the rich control is finished, there is provided temporary lean control so that a degree of how much the air/fuel ratio of the mixture is leaner than the stoichiometric air/fuel ratio when the air/fuel ratio of the mixture formed in the combustion chamber is controlled to be the air/fuel ...

ENGINE CONTROLLER AND ENGINE CONTROLLING METHOD

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND AN INTERNAL COMBUSTION ENGINE

УСТРОЙСТВО ДЛЯ ЗАЩИТЫ КАТАЛИЗАТОРА И СПОСОБ ЗАЩИТЫ КАТАЛИЗАТОРА ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к системам обработки отработавших газов двигателя внутреннего сгорания. Устройство для защиты катализатора включает в себя: катализатор, предусмотренный в системе выпуска отработавших газов двигателя внутреннего сгорания и очищающий отработавшие газы; блок сбора данных о температуре слоя, получающий информацию о текущей температуре слоя катализатора; блок расчета базового значения приращения, рассчитывающий базовое значение приращения, которое является базовой величиной значения приращения количества топлива, впрыскиваемого форсункой, предусмотренной в двигателе внутреннего сгорания, для охлаждения катализатора, когда текущая температура слоя превышает заданное значение для определения температуры перегрева; компенсатор, получающий скорректированное значение приращения посредством корректировки базового значения приращения с использованием коэффициента уменьшения, рассчитываемого с задействованием значения целевой температуры слоя, заданной явно ниже значения определения ...

СИСТЕМА ОЧИСТКИ ВЫХЛОПНЫХ ГАЗАОВ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Система очистки выхлопных газов для двигателя внутреннего сгорания (1), указанная система очистки включает фильтр (13), предусмотренный в системе выпуска выхлопных газов двигателя внутреннего сгорания для улавливания твердых частиц в выхлопных газах, указанная система очистки сконфигурирована для осуществления регенерации фильтра посредством выполнения подвпрыска, который является впрыском топлива от клапана (21) впрыска топлива, выполняемым после впрыска топлива от клапана впрыска топлива в камеру (2) сгорания для обеспечения работы двигателя, для подачи компонента топлива на каталитический нейтрализатор (11, 12, 13), предусмотренный в системе выпуска выхлопных газов, и сжигания твердых частиц, отложившихся на фильтре, с целью удаления твердых частиц с использованием тепла окисления компонента топлива на каталитическом нейтрализаторе для повышения температуры фильтра, характеризующаяся тем, что она включает средство (25) коррекции для уменьшения объема подвпрыска во время выполнения ...

Verfahren und Vorrichtung zur Regelung von Emissionen eines Magerkonzeptverbrennungsmotors

Verfahren zur Regelung von Emissionen während einer Spülung einer Abgas-Nachbehandlungsvorrichtung (72) eines Magerkonzept-Verbrennungsmotors, die nachgeordnet über eine Abgasleitung (74) an den Verbrennungsmotor angeschlossen ist, wobei die Abgasleitung (74) einen ersten Zweig (77) und einen zweiten Zweig (78) umfasst, der länger als der erste Zweig (77) ist, wobei die Abgasleitung (74) ferner in seinem ersten Zweig (77) ein Regelventil (76) umfasst, umfassend: Bereitstellen einer Angabe, dass die Temperatur der Vorrichtung (72) innerhalb eines festgelegten Bereichs liegt, innerhalb dessen eine Kapazität der Vorrichtung (72) zur Speicherung einer Abgaskomponente mit einer weiteren Zunahme der Vorrichtungstemperatur abnimmt; und Justieren des Regelventils (76) in Reaktion auf diese Angabe, so dass ein Strom eines Abgasgemisches durch den ersten Zweig (77) im Wesentlichen versperrt wird.

Verfahren zur Steuerung eines Verbrennungsmotors in Verbindung mit einer exothermen Regeneration einer Abgasnachbehandlungkomponente

Vorgestellt wird ein Verfahren zur Steuerung eines Verbrennungsmotors (10), der ein Abgassystem (12) mit einer Abgasbestandteile temporär speichernden und regenerierbaren Abgasnachbehandlungskomponente (22) aufweist, wobei ein Erwartungswert für eine Temperatur der Abgasnachbehandlungskomponente (22) in Abhängigkeit von einem Temperaturanstieg gebildet wird, der sich als Folge exothermer Reaktionen während der Zeitdauer einer zur Regeneration eingestellten Betriebsart (BA2) des Verbrennungsmotors (10) einstellt, der Erwartungswert mit einem oberen Schwellenwert (T_max) verglichen wird und die Steuerung des Verbrennungsmotors (10) bei einem Überschreiten des Schwellenwertes (T_max) so verändert wird, dass ein unter Berücksichtigung der veränderten Steuerung gebildeter Erwartungswert den Schwellenwert (T_max) nicht überschreitet. Das Verfahren zeichnet sich dadurch aus, dass bei der Bildung des Erwartungswertes eine Änderungsrichtung einer aktuellen Temperatur der Abgasnachbehandlungskomponente ...

Verfahren zur Steuerung eines Partikelfilters und Kraftfahrzeug

Betriebsverfahren (60) für ein Kraftfahrzeug (10) mit einem Motor (11), einem Zuluftstrang (12), einem Abgasstrang (13), einem in dem Abgasstrang (13) angeordneten Partikelfilter (22), einem Injektor (29, 68), der ausgebildet ist, Kraftstoff (31) in eine Brennkammer (34) des Motors (11) oder in den Abgasstrang (13) einzubringen, einem Niederdruck-Abgasrückführungsstrang (19), der ausgebildet ist, Abgas (36) aus dem Abgasstrang (13) von einer stromabwärts des Partikelfilters (22) angeordneten Niederdruck-Abgasentnahmestelle (24) an eine in dem Zuluftstrang (12) angeordnete Niederdruck-Abgaseinleitstelle (25) zu leiten, und einem Hochdruck-Abgasrückführungsstrang (45), der ausgebildet ist, Abgas (36) aus dem Abgasstrang (13) von einer stromaufwärts des Partikelfilters (22) angeordneten Hochdruck-Abgasentnahmestelle (46) an eine in dem Zuluftstrang (12) angeordnete Hochdruck-Abgaseinleitstelle (47) zu leiten, bei dem zur Steuerung des Partikelfilters (22), wenn in einer Partikelfilterprüfung ...

Verfahren und Vorrichtung zur Abgastemperaturregelung

Verfahren zur Abgastemperaturregelung für eine Brennkraftmaschine mit einer Vorrichtung zur Erfassung einer Abgastemperatur (13), einer Vorgabe einer Maximal-Abgastemperatur (12) und einer Steuerung für eine Gemischaufbereitung mit Parametern Verbrennungsluftverhältnis und Zylinderfüllung, dadurch gekennzeichnet, dass bei Überschreitung der vorgegebenen Maximal-Abgastemperatur (12) im Gemisch das Verbrennungsluftverhältnis bis zu einem unteren Grenzwert (22) stetig oder in mehreren Schritten abgesenkt und bei Erreichen dieses Grenzwertes (22) die Zylinderfüllung stetig oder in mehreren Schritten reduziert wird.

Wassereinspritzung für Katalysatorsauerstoffverringerung und Katalysatortemperatursteuerung während vorübergehender Ereignisse

Es werden Verfahren und Systeme zum Einspritzen von Wasser auf der Basis einer Dauer einer Zylinderdeaktivierung und einer Abgaskatalysatortemperatur während eines Kraftmaschinenzylinder-Deaktivierungsereignisses geschaffen, um eine Abgaskatalysator-Regenerationsanforderung nach der Zylinderdeaktivierung zu verringern und eine Katalysatorverschlechterung zu verhindern.

A method for operating an engine system

HEAT CONTROL OF THE SUBSEQUENT TREATMENT SYSTEM

PROCESS OF MONITORING OF the APTITUDE FOR the CONVERSION OF POLLUTING PRODUCTS IN a SYSTEM OF POSTPROCESSING OF EXHAUST FUMES

Procédé de surveillance de l'aptitude à la conversion de produits polluants d'un composant de post-traitement des gaz d'échappement (36, 38), oxydant, à revêtement catalytique équipant un système de gaz d'échappement (12) d'un moteur à combustion interne (10). A partir de l'efficacité d'un catalyseur SCR (44) en aval, on détermine l'aptitude du revêtement catalytique des composants de post-traitement des gaz d'échappement (36, 38) pour oxyder des oxyde d'azote NO en oxyde d'azote NO .

Exhaust gas temperature regulating method for e.g. turbocharged diesel engine of motor vehicle, involves modifying flow of air sucked by internal combustion engine and/or modifying rate of exhaust gas recirculated in engine

Procédé de régulation de la température (Tavt) des gaz d'échappement d'un moteur à combustion interne (19) comprenant une étape de modification du débit d'air aspiré par le moteur et/ou de modification du taux de gaz d'échappement recirculés dans le moteur.

METHOD FOR OPTIMISING THE PERFORMANCE OF THE INTERNAL COMBUSTION ENGINE OF A VEHICLE, SUCH AS AN AUTOMOTIVE VEHICLE

La présente invention concerne un procédé d'optimisation des performances d'un moteur à combustion interne d'un véhicule, tel qu'un véhicule automobile. Selon l'invention, le procédé est caractérisé en ce qu'il consiste à incrémenter un compteur de temps (CT) à chaque fois que le moteur entre dans une zone de fonctionnement critique définie par le régime et la charge du moteur correspondant aux températures les plus élevées des gaz d'échappement et à changer les réglages du moteur dans un sens de réduction des températures des gaz d'échappement lorsque le moteur a fonctionné dans la zone critique pendant une durée cumulée déterminée. L'invention trouve application dans le domaine de l'automobile.

METHOD FOR REGENERATING A PARTICLE FILTER TEMPERATURE BY IMPREGNATED BEARINGS

L'invention porte sur un procédé de régénération d'un filtre à particules imprégné de réducteur pour une catalyse sélective, le filtre à particules imprégné étant présent dans une ligne d'échappement d'un moteur thermique d'un véhicule automobile, la régénération se faisant par une augmentation de la température dans la ligne d'échappement en amont du filtre à particules imprégné, caractérisé en ce que la régénération se fait par au moins deux paliers de température (1, 2) de régénération dans le filtre à particules imprégné avec un premier palier d'initiation (1) de la régénération à une première température (T1) de régénération et un deuxième palier de continuation (2) de la régénération à une deuxième température (T2) de régénération, la deuxième température (T2) étant inférieure à la première (T1) afin de limiter l'exotherme de la régénération dans le filtre. Application dans le domaine des véhicules automobiles. The invention relates to a method for regenerating a particulate filter impregnated with a reducing agent for selective catalysis, the impregnated particulate filter being present in an exhaust line of a combustion engine of a motor vehicle, the regeneration being carried out by increasing the temperature in the exhaust line upstream of the impregnated particle filter, characterized in that regeneration is effected by at least two regeneration temperature stages (1, 2) in the particulate filter impregnated with a first initiation stage (1) of the regeneration at a first regeneration temperature (T1) and a second continuation stage (2) of the regeneration at a second regeneration temperature (T2), the second temperature (T2) being less than the first (T1) to limit the exotherm of the regeneration in the filter. Application in the field of motor vehicles.

PROCEEDED OF REGENERATION CONTROL Of a FILTER HAS PARTICLES

Procédé de commande de la régénération d'un filtre à particules (9) par production d'exotherme contrôlé dans la ligne d'échappement (7) grâce à l'injection de carburant destiné au chauffage préliminaire d'un catalyseur d'oxydation (8) situé en amont du filtre à particules (9) dans la ligne d'échappement, caractérisé en ce qu'à partir d'un seuil prédéterminé de température dans le filtre à particules (9), les quantités de carburant injectées sont régulées en fonction de la température, et du taux d'oxygène dans les gaz d'échappement en d'entrée du filtre (9).

METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE

The invention relates to an internal combustion engine comprising at least one cylinder and an exhaust gas tract, which contains a component to be protected. An estimated dynamic component temperature of the component to be protected is determined in accordance with at least one operating variable of the internal combustion engine, taking into consideration the dynamic behaviour of the section of the internal combustion engine. An estimated stationary component temperature of the component to be protected is determined in accordance with at least one operating variable of the internal combustion engine without taking into consideration the dynamic behaviour of the section of the internal combustion engine. An actual value is determined for the component temperature of the component in accordance with the estimated dynamic and stationary component temperatures of the component to be protected. Protective measures for said component are implemented in accordance with the actual value of the ...

REGENERATION CONTROL DEVICE FOR DIESEL PARTICULATE FILTER AND REGENERATION CONTROL METHOD THEREFOR

In order to prevent a drop in the filtering function of a diesel particulate filter from occurring, the present invention is provided with a regeneration control unit which, when the deposition amount of particulate matter deposited on a diesel particulate filter for eliminating the particulate matter from exhaust gas in an engine exceeds a predetermined value, burns the deposited particulate matter to regenerate the diesel particulate filter. The regeneration control unit performs engine speed lower limit control for making the lower limit of the engine speed a predetermined value (Nth) or more in an automatic forced regeneration period (TA) and a continuation period (TB) after automatic forced regeneration to thereby increase the amount of flow of the exhaust gas to the diesel particulate filter and eliminate heat filled in the diesel particulate filter.

Method for controlling the regeneration of a particle filter

Procédé de commande de la régénération d'un filtre à particules (9) par production d'exotherme contrôlé dans la ligne d'échappement (7) grâce à l'injection de carburant destiné au chauffage préliminaire d'un catalyseur d'oxydation (8) situé en amont du filtre à particules (9) dans la ligne d'échappement, caractérisé en ce qu'à partir d'un seuil prédéterminé de température dans le filtre à particules (9), les quantités de carburant injectées sont régulées en fonction de la température, et du taux d'oxygène dans les gaz d'échappement en d'entrée du filtre (9).

СИСТЕМА ОЧИСТКИ ВЫХЛОПНЫХ ГАЗОВ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

FIELD: engines and pumps. SUBSTANCE: proposed system comprises filter 13 to entrap solid particles and catalyst neutraliser 11, 12. System is arranged so that, in changing over to engine operation conditions whereat amount of sucked in air (GA) is smaller during secondary injection and amount of fuel injected during secondary injection decreases to decrease amount of fuel that sticks to cylinder inner walls, thus, limiting oil thinning by fuel, fuel being intended for lubing ICE 1. Secondary injection is not interrupted but volume of secondary injection is decreased. Therefore, when frequent changing from smaller amount of sucked-in air to larger amount of sucked-in air and visa versa, filter temperature does not decrease notably in changing to smaller amount of sucked-in air. Then changing to larger amount of sucked-in air, increasing filter temperature to degree required for combustion of solid particles does not required much time. EFFECT: reduced time filter regeneration. 7 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 397 346 (13) C2 (51) МПК F02D 41/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (72) Автор(ы): ОЦУБО Ясухико (JP), КАТАЯМА Масанобу (JP), ЙОКОИ Тацухиса (JP) (21), (22) Заявка: 2007142519/06, 19.11.2007 (24) Дата начала отсчета срока действия патента: 19.11.2007 (73) Патентообладатель(и): ТОЙОТА ДЗИДОСЯ КАБУСИКИ КАЙСЯ (JP) (43) Дата публикации заявки: 27.05.2009 2 3 9 7 3 4 6 (45) Опубликовано: 20.08.2010 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: ЕР 1380742 А1, 14.01.2004. ЕР 1515013 А2, 16.03.2005. ЕР 1512847 А1, 09.03.2005. RU 2247251 C2, 27.11.2003. SU 1437540 A1, 15.11.1988. 2 3 9 7 3 4 6 R U (54) СИСТЕМА ОЧИСТКИ ВЫХЛОПНЫХ ГАЗОВ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ уменьшается объем подвпрыска. Следовательно, в условиях, когда происходят частые переходы области работы двигателя с области малого количества всасываемого воздуха на другую ...

СПОСОБ (ВАРИАНТЫ) И СИСТЕМА ДЛЯ КОНТРОЛЯ ТЕМПЕРАТУРЫ ВЫПУСКНОЙ СИСТЕМЫ ДВИГАТЕЛЯ

А 2016123338 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) ааа дж < 53) ВО т. *. — *. ах к —. А (50) МПК [020 33/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016123338, 14.06.2016 (71) Заявитель(и): Форд Глобал Текнолоджиз, ЛЛК (0$) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 22.06.2015 95 14/746,616 МАРТИН Дуглас Реймонд (05), (43) Дата публикации заявки: 19.12.2017 Бюл. № 35 РОЛЛИНГЕР Джон Эрик (05) Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРС- ПАТЕНТ", МВ. Хмара (54) СПОСОБ (ВАРИАНТЫ) И СИСТЕМА ДЛЯ КОНТРОЛЯ ТЕМПЕРАТУРЫ ВЫПУСКНОЙ СИСТЕМЫ ДВИГАТЕЛЯ (57) Формула изобретения 1. Способ управления работой двигателя, содержащий этапы, на которых: эксплуатируют двигатель, работающий по циклу Миллера, с впрыском топлива в выпускную систему двигателя, работающего по циклу Миллера, в место, расположенное по ходу потока перед турбиной, соединенной с коленчатым валом двигателя, работающего по циклу Миллера; и пропускают отработавшие газы двигателя, работающего по циклу Миллера, через турбину. 2. Способ по п. 1, в котором турбина соединена с коленчатым валом посредством трансмиссии. 3. Способ по п. 2, в котором турбина соединена с коленчатым валом посредством муфты турбины. 4. Способ по п. 1, в котором дополнительно выборочно открывают и замыкают муфту расцепления привода для соединения турбины с двигателем, работающим по циклу Миллера. 5. Способ по п. 1, в котором пропускают через турбину отработавшие газы, более обогащенные, нежели отработавшие газы со стехиометрическим соотношением. 6. Способ по п. 5, в котором дополнительно смешивают отработавшие газы, более обогащенные, нежели отработавшие газы со стехиометрическим соотношением, с воздухом из впускного коллектора двигателя, работающего по циклу Миллера. 7. Способ по п. 6, в котором смешивание отработавших газов, более обогащенных, нежели отработавшие газы со стехиометрическим соотношением, с воздухом из впускного коллектора двигателя, ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ПОВЫШЕНИЯ И/ИЛИ ПОНИЖЕНИЯ ТЕМПЕРАТУРЫ ОТРАБОТАВШИХ ГАЗОВ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ С РАСПОЛОЖЕННЫМ В ТРУБОПРОВОДЕ ОТРАБОТАВШИХ ГАЗОВ УСТРОЙСТВОМ ДЛЯ СНИЖЕНИЯ ТОКСИЧНОСТИ ОТРАБОТАВШИХ ГАЗОВ

СПОСОБ ЗАЩИТЫ ДИЗЕЛЬНОГО САЖЕВОГО ФИЛЬТРА ОТ ПЕРЕГРЕВА

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 132 639 A (51) МПК F01N 3/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016132639, 09.08.2016 (71) Заявитель(и): ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 11.08.2015 GB 1514120.3 Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" Стр.: 1 A 2 0 1 6 1 3 2 6 3 9 R U A (57) Формула изобретения 1. Способ предотвращения перегрева дизельного сажевого фильтра во время события регенерации, когда двигатель моторного транспортного средства, с которым соединен дизельный сажевый фильтр, находится в режиме эксплуатации на холостом ходу, содержащий этапы, на которых эксплуатируют электрическую машину, соединенную с возможностью передачи приводного усилия с двигателем, в режиме генератора для заряда аккумуляторной батареи и регулируют подачу топлива к двигателю для компенсации дополнительной нагрузки, прикладываемой к двигателю электрической машиной, когда происходит регенерация дизельного сажевого фильтра, двигатель работает на холостом ходу, и одно из прогноза температуры и воспринимаемой температуры указывает на то, что температуру внутри дизельного сажевого уловителя прогнозируют и/или воспринимают как недопустимо высокую, причем регулировка подачи топлива к двигателю содержит этап, на котором уменьшают отношение воздуха к топливу так, чтобы увеличивать обогащенность смеси, подаваемой к дизельному сажевому фильтру, путем впрыска большего количества топлива в двигатель для увеличения выхода крутящего момента от двигателя. 2. Способ по п. 1, в котором электрическая машина представляет собой интегрированный стартер-генератор. 3. Способ по п. 1 или 2, причем способ дополнительно содержит этап, на котором проверяют скорость двигателя для подтверждения того, что двигатель эксплуатируется в режиме холостого хода. 4. Способ по п. 1 или 2, дополнительно содержащий этап, на ...

СПОСОБ ЭКСПЛУАТАЦИИ ДВИГАТЕЛЯ

... 1. Способ эксплуатации двигателя, в котором выборочно отключают один или несколько цилиндров двигателя с помощью деактивируемых топливных форсунок во время определенного процесса в трансмиссии, причем в один или несколько отключенных цилиндров двигателя впрыскивают воду для уменьшения насыщения кислородом первого каталитического нейтрализатора выхлопных газов.2. Способ по п. 1, в котором в режиме работы с отключенными цилиндрами впрыск воды в один или несколько цилиндров выполняют при превышении порогового числа циклов впрыска воды.3. Способ по п. 1, в котором в режиме работы с отключенными цилиндрами впрыск воды в один или несколько цилиндров выполняют при превышении порогового значения температуры каталитического нейтрализатора выхлопных газов.4. Способ по п. 2, в котором число циклов впрыска воды зависит от оцененной продолжительности работы с отключенными цилиндрами на основании одного или нескольких рабочих условий двигателя.5. Способ по п. 1, в котором процесс переключения передачи ...

Verfahren zum Unterdrücken eines Ammoniakschlupfes im Betrieb eines SCR-Katalysators eines Hybridelektroantriebs

Die Erfindung betrifft ein Verfahren zum Unterdrücken eines Ammoniakschlupfes im Betrieb eines SCR-Katalysators (8) eines Hybridelektroantriebs (1), insbesondere eines Kraftfahrzeugs. Um betriebsbedingte Stickoxidemissionen eines Hybridelektroantriebs (1) und einen Ammoniakschlupf eines SCR-Katalysators (8) weitestgehend zu reduzieren, wird mit der Erfindung vorgeschlagen, dass eine Temperatur eines durch den SCR-Katalysator (8) strömenden Abgases des Hybridelektroantriebs (1) in Abhängigkeit einer vorgegebenen Grenztemperatur des SCR-Katalysators (8), ab deren Überschreitung eine unkontrollierte Freisetzung von in dem SCR-Katalysator (8) gespeichertem Ammoniak erfolgt, derart geregelt wird, dass eine Temperatur des SCR-Katalysators (8) nicht die vorgegebene Grenztemperatur übersteigt.

BRENNKRAFTMASCHINE GETEILTER BAUART

Verfahren zur Rückgewinnung von Wasser aus einem Abgas eines Verbrennungsmotors

Die Erfindung betrifft ein Verfahren zur Rückgewinnung von Wasser aus einem Abgas eines Verbrennungsmotors (2), umfassend die Schritte:- Ermitteln einer Temperatur Teines Hauptabgasmassenstroms ṁeiner Hauptabgasleitung (3) des Verbrennungsmotors (1);- Ermitteln einer Temperatur Teines gekühlten zweiten Abgasmassenstroms ṁeiner zweiten Abgasteilleitung (4) des Verbrennungsmotors (2);- Einleiten des gekühlten zweiten Abgasmassenstroms ṁin einen Abscheider (7) zur Rückgewinnung von Wasser aus dem gekühlten zweiten Abgasmassenstrom ṁin einem Kondensatstrom ṁ;- Regeln der Temperatur Tdes gekühlten zweiten Abgasmassenstroms ṁabhängig von der Temperatur Tdes Hauptabgasmassenstroms ṁ.

Vehicle with catalytic converter, comprises arrangement for switching off engine temporarily when temperature threshold value has been reached

The vehicle has an internal combustion engine working with jet guided direct fuel injection and stratified charge. When an idle state is detected and in particular the temperature in the catalytic converter has exceeded the predetermined threshold value the engine is temporarily switched off. The catalytic converter is not cooled down unnecessarily by cold gas. The heating power present is distributed within the catalytic converter instead and increases the heat further.

Method for controlling combustion engine with combustion chamber, involves overflowing air mass from air intake system into waste gas system during valve overlap of gas shuttle valves

The method involves overflowing an air mass (mL-abg) from the air intake system (20) into the waste gas system (22) during a valve overlap of the gas shuttle valves (16,18) by controlling interferences on a variable control. The extent of the enrichment of the combustion chamber-fuel/air mixture is examined for detecting an overheating risk in the catalyzer (52). A measure is captured which limits the free amount of heat liberated by an exothermic reactions in catalyzer. An independent claim is also included for a control device of a combustion engine.

Methods of operating i.c. engines having electrically controlled actuators for the inlet and/or exhaust valves

In the methods one or more electrically controlled actuator(s) eg electro-hydraulic actuators (18,19; 21,22 - see Figure 1) is/are used to open and close an inlet and/or exhaust valve. In a first method the valves are controlled such that the compression ratio is lower than normal when the engine is cold. In a second method the exhaust valve is opened earlier than normal when a catalytic converter is cold. In a third method the valves are operated to reduce exhaust temperature when a catalytic converter overheats. In a fourth method a knock sensor is used and valve overlap is varied when knock is sensed to reduce pre-ignition. In a fifth aspect the inlet valve is used to throttle the engine. In a sixth method the valve operation is varied to suit driving style. In a seventh method a cylinder is deactivated by closing the valves with combusted gases trapped. In an eighth method, swirl and tumble of in-cylinder gases is varied by varying the valve operations. In a ninth method, the valve ...

Methods and apparatus for mitigating fuel in oil

Mitigating fuel in oil in an internal combustion engine of a hybrid electric vehicle, by detecting one or more of a catalyst temperature and a turbine temperature 110; and when the one or more of the catalyst temperature and the turbine temperature exceeds a first temperature threshold, limiting engine torque below a threshold engine torque required for the operation of an enrichment phase of engine operation 120, wherein the enrichment phase of engine operation provides a lambda value less than 1. The first temperature threshold is between 825°C and 925°C, preferably 875°C. When the one or more of the catalyst temperature and the turbine temperature decreases to a second temperature threshold, the engine torque is allowed to increase. The second temperature threshold is between 775°C and 825°C, preferably 800°C.

PROTECTING THE OXIDATION CATALYST UPSTREAM OF A PARTICULATE FILTER FOR A DIESEL ENGINE BY LIMITATION OF INJECTED FUEL

Internal combustion engine exhaust gas treatment control comprises monitoring of exhaust system temperature and components and adjusting as necessary

Procédé de commande d'un système de traitement aval des gaz d'échappement d'un moteur à combustion interne (1) comportant un bloc-moteur (10) et au moins un système de gaz d'échappement (20) équipé d'au moins un catalyseur (40) et d'un filtre à particules (50) en aval. A l'aide d'au moins une installation de mesure on surveille la température du système de gaz d'échappement et la température d'au moins l'un de ses composants et en cas de dépassement de température on applique un concept de mesures à plusieurs niveaux.

Catalyst overheat prevention apparatus

A catalyst overheat prevention apparatus has a temperature obtaining portion that estimates a convergence temperature of a catalyst provided in the exhaust system of an internal combustion engine and the present temperature of the catalyst. The catalyst overheat prevention apparatus also has a fuel increment calculation portion, a comparison portion, a correction portion, and a fuel increment setting portion, which are used to execute OT fuel increase control when the convergence temperature and present catalyst temperature obtained by the temperature obtaining portion are equal to or higher than an OT determination temperature. The catalyst overheat prevention apparatus also has a present temperature correction portion that corrects the present catalyst temperature to be equal to the OT determination temperature when the present catalyst temperature is equal to or higher than the OT determination temperature and the convergence temperature is equal to the OT determination temperature.

Air-fuel ratio control apparatus for an internal combustion engine

After rich control for controlling the air/fuel ratio of a mixture to be an air/fuel ratio richer than stoichiometric air/fuel ratio, lean control is carried out so that air/fuel ratio of the mixture formed in the combustion chamber is controlled to be an air/fuel ratio leaner by a predetermined degree than the stoichiometric air/fuel ratio, or the air/fuel ratio of the mixture is controlled to temporarily be the air/fuel ratio leaner by the predetermined degree than the stoichiometric air/fuel ratio. If lean control is carried out after rich control is finished, temporary lean control provides that a degree of how much the air/fuel ratio of the mixture is leaner than the stoichiometric air/fuel ratio when the air/fuel ratio of the mixture is controlled to be the air/fuel ratio leaner than the stoichiometric air/fuel ratio in lean control is lower than the predetermined degree according to the temperature of a catalyst.

Systems and methods for an engine

Various methods and systems for an engine are provided. In one example, an engine system includes an exhaust passage through which exhaust gas is configured to flow from the engine, and a turbocharger with a turbine positioned in the exhaust passage. The engine system further includes an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine, the exhaust gas treatment system including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition.

Ammonia storage control

Various methods for controlling ammonia levels stored in a catalyst by controlling exhaust gas temperatures are provided. In one embodiment, a temperature of a catalyst in an internal combustion engine is determined. If the temperature of the catalyst exceeds a first threshold at which an ammonia capacity of the catalyst for the temperature is below a current stored ammonia level in the catalyst, a load of the engine is reduced including adjusting a torque output of a motor operatively coupled to the engine.

SYSTEM AND METHOD FOR ADAPTING COMBUSTION TO MITIGATE EXHAUST OVERTEMPERATURE

A system and method for monitoring the temperature in a vehicle after-treatment system is provided. The system includes one or more temperature sensors positioned in the vehicle after-treatment system and an electronic control unit (ECU) configured by programming instructions encoded in computer readable media to execute a method. The method includes monitoring the temperature presented by the one or more temperature sensors, executing a lower oxygen combustion strategy for a slower exothermic reaction when the temperature exceeds a first threshold level, and deactivating the lower oxygen combustion strategy when the temperature drops below a second threshold level. 1. A method in a vehicle , comprising:monitoring the temperature in a vehicle after-treatment system;executing a lower oxygen combustion strategy for a slower exothermic reaction when the temperature exceeds a first threshold level; anddeactivating the lower oxygen combustion strategy when the temperature drops below a second threshold level.2. The method of claim 1 , wherein the monitoring is performed by a vehicle electronic control unit (ECU).3. The method of claim 2 , wherein the executing is performed under the control of the ECU.4. The method of claim 3 , wherein the deactivating is performed under the control of the ECU.5. The method of claim 1 , wherein the lower oxygen combustion strategy comprises reducing oxygen content by reducing airflow into one or more combustion cylinders.6. The method of claim 5 , wherein the lower oxygen combustion strategy comprises reducing oxygen content by adding EGR gases into one or more combustion cylinders.7. The method of claim 1 , wherein the lower oxygen combustion strategy comprises delaying the main injection SOI (start of injection).8. The method of claim 1 , wherein the lower oxygen combustion strategy comprises reducing the air-to-fuel ratio and combustion efficiency in the combustion chamber by adding one or more after injections.9. The method of claim ...

SYSTEM FOR MANAGING CATALYTIC CONVERTER TEMPERATURE

Various methods and arrangements for controlling catalytic converter temperature are described. In one aspect, an engine controller includes a catalytic monitor and a firing timing determination unit. The catalytic monitor obtains data relating to a temperature of a catalytic converter. Based at least partly on this data, the firing timing determination unit generates a firing sequence for operating the engine in a skip fire manner. Another aspect of the invention relates to an engine exhaust system that can help expedite the heating of a catalytic converter. 1. An engine controller for operating an internal combustion engine in a skip fire manner , the engine controller including a plurality of working chambers , the engine controller comprising:a catalytic monitor arranged to obtain data relating to a temperature of a catalytic converter wherein the catalytic converter temperature data is obtained from one selected from the group consisting of a catalytic converter temperature model and a sensed catalytic converter temperature; anda firing timing determination unit that is arranged to determine a firing sequence for operating the working chambers of the engine in a skip fire manner wherein the firing sequence is generated at least in part based on the catalytic converter temperature data.2. An engine controller as recited in wherein the catalytic converter temperature model is based on one or more selected from the group consisting of oxygen sensor data claim 1 , exhaust gas temperature claim 1 , ambient temperature claim 1 , ambient humidity claim 1 , barometric pressure and engine coolant temperature.3. An engine controller as recited in wherein the engine controller is arranged to generate the firing sequence during an engine startup period that takes place immediately after the engine is activated from a cold start.4. An engine controller as recited in wherein the firing sequence is determined on a firing opportunity by firing opportunity basis.5. An engine ...

FUEL INJECTION CONTROLLER AND CONTROLLING METHOD FOR ENGINE

A fuel injection controller updates an air-fuel ratio learning value such that the amount of correction of a fuel injection amount according to an air-fuel ratio feedback correction value approaches zero. Further, the fuel injection controller makes an update rate of the air-fuel ratio learning value lower when the variation among respective-cylinder correction values, which are set for the respective cylinders in order to differentiate air-fuel ratios of a plurality of cylinders, is great than when the variation among the respective-cylinder correction values of the cylinders is small. 1. A fuel injection controller for an engine , the engine including a plurality of cylinders and a plurality of fuel injection valves provided respectively in the cylinders , whereinthe fuel injection controller is configured to control each of fuel injection amounts of the fuel injection valves, an air-fuel ratio feedback correction value, which is updated such that a difference between an exhaust air-fuel ratio, which is detected by an air-fuel ratio sensor installed in an exhaust passage, and a target air-fuel ratio approaches zero,', 'an air-fuel ratio learning value, which is updated based on the air-fuel ratio feedback correction value such that an amount of correction of the fuel injection amount according to the air-fuel ratio feedback correction value approaches zero, and', 'respective-cylinder correction values, which are set for the respective cylinders to differentiate the air fuel ratios of the cylinders, and, 'the fuel injection controller is configured to have, as correction values for fuel injection amounts of the fuel injection valves,'}the fuel injection controller is configured to make an update rate of the air-fuel ratio learning value lower when a variation among the respective-cylinder correction values of the cylinders is great than when the variation among the respective-cylinder correction values of the cylinders is small.2. The fuel injection controller for ...

Methods for operating and diagnosing internal combustion engine exhaust gas treatment systems

Internal combustion engine (ICE) exhaust gas treatment systems include the ICE having one or more cylinders configured to receive a mixture of air and fuel defined by an air to fuel ratio (AFR) for combustion therein, a control module configured to control the AFR, a diesel oxidation catalyst (DOC) configured to receive exhaust gas generated by the ICE and oxidize NOx species within the exhaust gas, and a selective catalytic reduction device (SCR) configured to receive exhaust gas from the DOC. Methods for operating and diagnosing such systems include determining, via the control module, a baseline value of a SCR performance parameter which is unsuitable, changing, via the control module, the AFR to change the DOC outlet NO2:NOx ratio, subsequently assessing a second value of the SCR performance parameter, and implementing a control action based on the second value of the SCR performance parameter.

METHOD OF CONTROLLING WATER INJECTOR FOR PREVENTING DAMAGE TO CATALYST FOR EXHAUST GAS PURIFICATION AND ENGINE DRIVEN BY METHOD

Disclosed are a method of controlling a water injector for preventing damage to a catalyst for exhaust gas purification and an engine driven by the method. A method of controlling the operation of an injector for injecting water into the combustion chamber of an engine to which a turbo system for increasing the amount of air by compressing air has been applied includes a catalyst state determination step of determining the danger condition of a catalyst for exhaust gas purification by detecting the state of the catalyst, a water injection amount calculation step of calculating a water injection flow value F at which a temperature of exhaust gas drops to a preset temperature when the catalyst is in the danger condition, and a water injection step of performing the waterjet operation of a water injector based on the water injection flow value calculated in the water injection amount calculation step. 1. A method of controlling an operation of an injector for injecting water into a combustion chamber of an engine to which a turbo system for increasing an amount of air by compressing air has been applied , the method comprising:a catalyst state determination step of determining a danger condition of a catalyst for exhaust gas purification by detecting a state of the catalyst;{'b': '1', 'a water injection amount calculation step of calculating a water injection flow value F at which a temperature of exhaust gas is able to drop to a preset temperature when the catalyst is in the danger condition; and'}{'b': '1', 'a water injection step of performing a waterjet operation of a water injector based on the water injection flow value F calculated in the water injection amount calculation step.'}2. The method of claim 1 , wherein in the catalyst state determination step claim 1 , the danger condition is determined when the temperature of the catalyst for exhaust gas purification exceeds the preset temperature.3. The method of claim 1 , wherein when the state of the catalyst is ...

VARIABLE CONTROL METHOD OF AN EXHAUST TEMPERATURE INCREASE IN A DLEV SYSTEM

A variable control method of exhaust temperature increase includes, when a cam phaser, which is connected to a double cam shaft having a coaxial arrangement structure of an outer shaft and an inner shaft, is operated and when a cam angle is determined as being varied by a controller, a cam phaser position change control is performed of decreasing a flow rate of an internal exhaust gas recirculation (EGR) supplied to a cylinder of an engine with a cam advance angle, increasing the flow rate of the EGR with a cam retard angle, or blocking the flow rate of the EGR with a maximal cam advance angle. 1. A variable control method of exhaust temperature increase , comprising:when a cam phaser is operated, the cam phaser being connected to a double cam shaft having a coaxial arrangement structure of an outer shaft and an inner shaft, and when a cam angle is determined as being varied by a controller, performing a cam phaser position change control of decreasing a flow rate of an internal exhaust gas recirculation (EGR) supplied to a cylinder of an engine with a cam advance angle, increasing the flow rate of the EGR with a cam retard angle, or blocking the flow rate of the EGR with a maximal cam advance angle.2. The variable control method of claim 1 , wherein the cam advance angle is determined through a catalyst temperature increase by a light-off time (LOT) of a catalyst for purifying an exhaust gas emitted from the engine claim 1 , and the cam advance angle is achieved by a cam advance angle control.3. The variable control method of claim 2 , wherein the cam advance angle control includes:determining a change of a cam angle of a double cam shaft to the cam advance angle according to an operating condition of the engine;determining the change of the cam angle to the cam advance angle based on an engine combustion condition or an exhaust gas purification condition; andchecking the change of the cam angle to the cam advance angle through determining of the cam advance angle. ...

INTEGRATED START/STOP AND AFTER-TREATMENT CONTROLS

An apparatus and method for controlling engine start/stop operations based at least in part on considerations relating to the thermal management of an exhaust gas after-treatment system. A control system may monitor and/or predict conditions and/or properties of the after-treatment system, including conditions related to the thermal management of a selective catalytic reduction system and the properties of an exhaust gas stream that has been released from an internal combustion engine and into the after-treatment system. Such conditions may be evaluated in determining whether the thermal management of the after-treatment system is at, or will be in, a condition that may accommodate a start/stop operation of the internal combustion engine with minimal, if any, adverse impact on the thermal management of the after-treatment system. Such an evaluation may, in at least certain situations, provide at least a consideration as to whether to de-activate or activate start/stop operations. 1. A method comprising:releasing, from an internal combustion engine, an exhaust gas stream into an exhaust gas after-treatment system;managing one or more thermal properties of the exhaust gas after-treatment system; andinhibiting start/stop operations of the internal combustion engine based on a status of the managed one or more thermal properties of the exhaust gas after-treatment system.2. The method of claim 1 , further including the step of detecting one or more characteristics of the released exhaust gas stream.3. The method of claim 2 , wherein the step of managing one or more thermal properties comprises managing claim 2 , using at least the detected one or more characteristics of the released exhaust gas stream claim 2 , the operation of a selective catalytic reduction system.4. The method of claim 3 , wherein the status of the managed one or more thermal properties comprises an inlet temperature of the exhaust gas stream in the selective catalytic reduction system relative to a ...

METHODS AND SYSTEMS FOR THERMAL MANAGEMENT USING DIESEL CYLINDER DEACTIVATION

A method for operating a multiple cylinder diesel engine system in a thermal management mode comprises monitoring an aftertreatment temperature, monitoring operating conditions, and determining that the aftertreatment temperature is below an ideal temperature. Fuel injected in to firing cylinders of the multiple cylinder diesel engine can be increased until the aftertreatment temperature is above the ideal temperature, which can comprise selecting a get hot mode that provides an optimal heat transfer rate for transferring heat exhausted from the multiple cylinder diesel engine to the aftertreatment. When the aftertreatment temperature is above the ideal temperature, and when the multiple cylinder diesel engine system is operating within at least one threshold range, cylinder deactivation mode can be entered in at least one cylinder of the multiple cylinder diesel engine. The method can modulate the number of cylinders in cylinder deactivation mode to maintain the aftertreatment temperature above the ideal temperature. 1. A thermal management system for a diesel engine , comprising: piston connected to a crankshaft;', 'fuel injector connected to an injection controller;', 'intake valve connected to an intake valve controller; and', 'exhaust valve connected to an exhaust valve controller;, 'a diesel engine comprising a plurality of combustion cylinders, each of the plurality of combustion cylinders comprising a respective an aftertreatment for filtering pollution from an exhaust stream exiting the exhaust valve; and', 'a sensor connected to measure a temperature of the aftertreatment; and, 'an exhaust system connected to the exhaust valves, the exhaust system comprising receive aftertreatment temperature data from the sensor;', 'determine an aftertreatment temperature in the exhaust stream;', 'determine whether the aftertreatment temperature is above or below an ideal temperature; and', select at least one of the plurality of combustion cylinders for deactivation;', ' ...

Method and device for raising and/or lowering an exhaust gas temperature of a combustion engine having an exhaust gas aftertreatment device arranged in an exhaust line

A method and a control device for raising and/or lowering an exhaust gas temperature of a combustion engine having an exhaust gas aftertreatment device arranged in an exhaust line sets the exhaust gas temperature for the exhaust gas aftertreatment using an electric-motor mode and/or a generator mode of an electrified exhaust turbocharger. 12356b,. A method for raising and/or lowering an exhaust gas temperature of a combustion engine () having an exhaust gas aftertreatment device () arranged in an exhaust line () , the method comprising:{'b': '10', 'using at least one selected from the group consisting of an electric-motor mode and a generator mode of an electrified exhaust turbo-charger () to set the exhaust gas temperature for exhaust gas after-treatment.'}24310. The method according to claim 1 , further comprising starting the electric-motor mode (S) and/or the generator mode (S) of the electrified exhaust turbocharger () after satisfaction of at least one activation condition for activation of an exhaust gas temperature management.331011121310. The method according to claim 2 , wherein the generator mode (S) of the electrified exhaust turbocharger () claim 2 , which brakes a rotor ( claim 2 , claim 2 , ) of the electrified exhaust turbocharger () claim 2 , is started when the satisfaction of the at least one activation condition indicates that the current exhaust gas temperature needs to be increased.441011121310. The method according to claim 2 , wherein the electric-motor mode (S) of the electrified exhaust turbocharger () claim 2 , which accelerates a rotor ( claim 2 , claim 2 , ) of the electrified exhaust turbocharger () claim 2 , is started when the satisfaction of the at least one activation condition indicates that the current exhaust gas temperature needs to be reduced.5. The method according to claim 2 , further comprising claim 2 , when the satisfaction of the at least one activation condition indicates that the current exhaust gas temperature needs to ...

Internal combustion engine with turbocharger

An internal combustion engine with a turbocharger includes a catalyst, downstream of a turbine, in an exhaust passage. The internal combustion engine includes a waste gate, and a waste gate valve. The internal combustion engine further includes a flow-adjusting member or a flow-adjusting mechanism. The flow-adjusting member disperses a flow of exhaust gas from the waste gate when the opening degree of the waste gate valve is small and concentrates the flow when the opening degree of the waste gate valve is large. The flow-adjusting mechanism switches between a dispersed state in which the flow is dispersed and a concentrate state in which the flow is concentrated.

HYBRID VEHICLE

When a temperature of a catalyst in an exhaust emission control device mounted in an exhaust system of an engine is equal to or higher than a predetermined temperature at a time of a request for stopping the engine, a hybrid vehicle including the engine and a motor continues fuel injection of the engine until satisfaction of a predetermined condition and stops fuel injection of the engine on satisfaction of the predetermined condition. When the temperature of the catalyst is lower than the predetermined temperature at the time of the request for stopping the engine, on the other hand, the hybrid vehicle immediately stops fuel injection of the engine. 1. A hybrid vehicle comprising an engine , a motor , and a control device configured to control the engine and the motor , whereinat a time of a request for stopping the engine,when a temperature of a catalyst in an exhaust emission control device mounted in an exhaust system of the engine is equal to or higher than a predetermined temperature, the control device continues fuel injection of the engine until satisfaction of a predetermined condition and stops fuel injection of the engine on satisfaction of the predetermined condition, andwhen the temperature of the catalyst is lower than the predetermined temperature, the control device immediately stops fuel injection of the engine.2. The hybrid vehicle according to claim 1 ,wherein the motor is connected with an output shaft of the engine, andwhen stopping fuel injection of the engine, the control device controls the motor to reduce a rotation speed of the engine.3. The hybrid vehicle according to claim 1 ,wherein the predetermined condition includes an air-fuel ratio condition that an air-fuel ratio in the catalyst reaches a stoichiometric ratio.4. The hybrid vehicle according to claim 3 ,wherein the engine includes a variable valve timing mechanism configured to change an open-close timing of an intake valve, andthe predetermined condition includes an open-close ...

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

A control device () to be applied to an internal combustion engine () having a fuel reformation cylinder () and an output cylinder (), wherein the compression end gas temperature of the fuel reformation cylinder () is adjusted by changing an EGR gas amount, an effective compression ratio, or a polytropic number according to an equivalence ratio in the fuel reformation cylinder () so as to achieve a target concentration of a specific gas component in reformed fuel generated in the fuel reformation cylinder (). The target concentration is defined according to a required engine power. 1. A control device for an internal combustion engine including a fuel reformation cylinder and an output cylinder to which reformed fuel generated in the fuel reforming cylinder is supplied , the output cylinder being configured to yield an engine power by combusting the reformed fuel , the control device comprising:a gas temperature adjustment unit configured to adjust a gas temperature in the fuel reformation cylinder at a time of fuel reformation according to an equivalence ratio in the fuel reformation cylinder so that a concentration of a specific gas component in the reformed fuel generated in the fuel reformation cylinder is a target concentration defined according to a required engine power.2. The control device according to claim 1 , wherein:the fuel reformation cylinder is structured as a reciprocation type in which a piston reciprocates in the cylinder, andthe gas temperature adjustment unit configured to adjust the gas temperature in the fuel reformation cylinder at a timing of the piston reaching a compression top dead point in the fuel reformation cylinder, according to an equivalence ratio in the fuel reformation cylinder.3. The control device according to claim 1 , wherein:the gas temperature adjustment unit is configured to set the gas temperature in the fuel reformation cylinder at the time of fuel reformation so that the gas temperature is higher for a higher target ...

ENGINE APPARATUS

At every ignition cycle, when a duration change amount ΔT30[i] is equal to or less than a reference value ΔT30ref2, a misfire counter Cmf is kept unchanged. When the duration change amount ΔT30[i] is greater than the reference value ΔT30ref2, on the other hand, the misfire counter Cmf is incremented by value 1. A misfire ratio Rmf is set to provide a smaller value when an amount increasing determination flag F[i] is equal to value 1 than a value when the amount increasing determination flag F[i] is equal to value 0. In the case where an ignition counter Ci reaches or exceeds a reference value Ciref, it is determined whether a conversion catalyst is overheated by comparison between the misfire counter Cmf and an accumulated misfire ratio Rmfsum that is an accumulated value of the misfire ratio Rmf. 1. An engine apparatus , comprising:an engine that is configured to have a plurality of cylinders;a catalytic converter that is configured to include a catalyst for emission control of the engine; anda controller that is configured to compute an amount of change in a time period required for rotating an output shaft of the engine by a predetermined rotational angle at every predetermined cycle that is equal to or shorter than an ignition cycle of the engine, and when the amount of change is greater than a first reference value, to start a predetermined amount increasing operation with regard to a cylinder that is in an expansion stroke during computation of the amount of change among the plurality of cylinders, such as to increase an amount of fuel injection to be greater than an amount of fuel injection when the amount of change is equal to or less than the first reference value, whereinat every predetermined cycle, the controller keeps a value of a counter unchanged when the amount of change is equal to or less than a second reference value that is larger than the first reference value, while incrementing the value of the counter when the amount of change is greater than ...

Lean-burn engine

In a lean-burn engine equipped with a turbocharger, a responsiveness of a super-charging pressure in a lean region is enhanced by control of a valve timing of an exhaust valve while a combustion state is restrained from varying. A variable valve mechanism that can change an opening timing of the exhaust valve while keeping a closing timing of the exhaust valve constant, is included in the lean-burn engine. When a target operation point is located in the lean region, and when an actual supercharging pressure is lower than a target supercharging pressure, supercharging pressure increasing control that advances the opening timing while keeping the closing timing constant is executed by operating the variable valve mechanism.

EXHAUST GAS PURIFICATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

The deterioration of an exhaust gas purification catalyst is suppressed as ranch as possible. An exhaust gas purification system for an internal combustion engine comprising: a throttle valve; a turbocharger; an exhaust gas purification catalyst; a bypass passage; a turbo bypass valve (TBV); and a controller. The controller is configured to carry out fuel out processing and deterioration suppression control. In the deterioration suppression control, when a temperature of the exhaust gas purification catalyst is equal to or higher than a predetermined temperature in the course of the execution of the fuel cut processing, the degree of opening of the TBV becomes smaller, and the degree of opening of the throttle valve becomes larger, than when the temperature of the exhaust gas purification catalyst is lower than the predetermined temperature in the course of the execution of the fuel cut processing. 1. An exhaust gas purification system for an internal combustion engine comprising:throttle valve that is arranged in an intake passage of said internal combustion engine;a turbocharger with a turbine that is arranged in an exhaust passage of said internal combustion engine;an exhaust gas purification catalyst that is arranged in said exhaust passage at the downstream side of said carbine, said exhaust gas purification catalyst having an ability to store oxygen in an exhaust gas;a bypass passage that branches from said exhaust passage at a location upstream of said turbine, and merges to said exhaust passage at a location upstream of said exhaust gas purification catalyst, while bypassing said turbine, wherein said bypass passage is constructed to have an outlet of which diameter is smaller than a diameter of an upstream side end face of said exhaust gas purification catalyst, and is also constructed so as to direct a direction of flow of a bypass exhaust gas, which is the exhaust gas flowing out from, said bypass passage into said exhaust passage, toward the upstream ...

METHOD OF OPERATING A SELECTIVE CATALYTIC REDUCTION ON FILTER OF AN AUTOMOTIVE SYSTEM

A method of operating a Selective Catalytic Reduction on Diesel Particulate Filter or SDPF is disclosed. During a SDPF regeneration; temperature values are obtained for the SDPF inlet and SDPF outlet. The temperature values are used to calculate a rate of increase of SDPF outlet temperature and a rate of increase of SDPF inlet temperature. A ratio between the rate of increase of SDPF outlet temperature values and the rate of increase of SDPF inlet temperature values is calculated, and if the ratio is greater than a threshold thereof, the exhaust gas composition is modified in some manner. 115- (canceled)16. A method of operating an internal combustion engine equipped with an aftertreatment system for treating exhaust gas , the method comprising:regenerating a selective catalytic reduction on a particulate filter;obtaining temperature values at an inlet and an outlet of the particulate filter during said regeneration;calculating a rate of change of the outlet temperature and a rate of change of the inlet temperature based on the temperature values;calculating a ratio between the rate of change of the outlet temperature values and the rate of change of the inlet temperature values; andmodifying the exhaust gas composition when the calculated ratio is greater than a threshold value thereof.17. The method according to claim 16 , further comprising obtaining SDPF inlet and SDPF outlet temperature values from an SDPF inlet temperature sensor and an SDPF outlet temperature sensor.18. The method according to claim 16 , further comprising reducing the oxygen quantity in the exhaust gas to modify the exhaust gas composition.19. The method according to claim 18 , further comprising operating a valve connecting a long route EGR conduit to an intake duct of the internal combustion engine to reduce the oxygen quantity in the exhaust gas.203. The method according to claim claim 18 , further comprising operating a throttle valve regulating a flow of air into an intake manifold of ...

METHOD FOR CONTROLLING A HEAT ENGINE

Disclosed is a method for controlling a combustion engine, the combustion engine including an inlet circuit and an exhaust circuit, the method including the steps: determining a temperature of the exhaust gases flowing through the exhaust circuit of the combustion engine; comparing the determined temperature with a maximum threshold; and if the determined temperature is less than the maximum threshold, controlling the engine by decrementing the richness of operation by a predetermined value and jointly incrementing by a predetermined value a level of exhaust gases recirculated between the exhaust circuit and the inlet circuit of the combustion engine. 1123. Method for controlling a combustion engine () , said combustion engine comprising an inlet circuit () and an exhaust circuit () , said method comprising the steps:{'b': 3', '60, 'determining a temperature of the exhaust gases flowing through the exhaust circuit () of the combustion engine (step ),'}{'b': '61', 'comparing the determined temperature with a maximum threshold (step ),'}{'b': 3', '2', '1', '64, 'if the determined temperature is less than the maximum threshold, controlling the engine by decrementing the richness of operation by a predetermined value and jointly incrementing by a predetermined value a level of exhaust gases recirculated between the exhaust circuit () and the inlet circuit () of the combustion engine () (step ).'}21331. Method according to claim 1 , whereby the temperature of the exhaust gases is determined based on information provided by a sensor () mounted on the exhaust circuit () of the combustion engine ().3. Method according to claim 1 , whereby the maximum temperature threshold depends on a set operating richness of the combustion engine.463. Method according to claim 1 , including a verification step to ensure that the richness of operation is greater than 1 (step ).514. Method according to claim 1 , whereby the richness of operation is determined based on the information issued ...

Control apparatus for internal combustion engine

In an internal combustion engine that includes: an EGR channel that connects a portion of an exhaust channel on the upstream side of a downstream-side catalyst and a portion of an intake channel on the downstream side of both of a compressor and a throttle valve; and an EGR valve configured to open and close the EGR channel, a control apparatus is programmed, where an occurrence of a blow-through air that flows from the intake channel to the exhaust channel via the EGR channel is detected, to limit a throttle downstream pressure to reduce the overheating of the downstream-side catalyst.

Method and apparatus for avoiding overheating of a dosing unit in an SCR system

Method and system for controlling the intake and exhaust valves in an internal combustion engine

The present invention relates to method for controlling a compression-ignition internal combustion engine, said internal combustion engine having at least one combustion chamber, wherein intake of air to said combustion chamber is controlled using an intake valve, and wherein evacuation of said combustion chamber is controlled using an exhaust valve. The method includes:- controlling opening of said intake valve and closing of said exhaust valve in dependence of the position of a reciprocating member in said combustion chamber, wherein opening of said intake valve and closing of said exhaust valve, respectively, in relation to the position of said reciprocating member is individually controllable, and- wherein, in one mode of operation, opening of said intake valve and closing of said exhaust valve, respectively, are controlled such that both valves are simultaneously open during a period of variable length.

Method for regenerating a particle filter and computer program product for carrying out the method

Die Erfindung betrifft Verfahren zur Regeneration eines Partikelfilters in einem Abgasnachbehandlungssystem einer Brennkraftmaschine durch Verbrennung der an dem Partikelfilter angelagerten Partikel. Dabei ist es vorgesehen, dass zumindest während der Regeneration des Partikelfilters zumindest einem Brennraum der Brennkraftmaschine mittelbar oder unmittelbar Wasser zugeführt wird.Die Erfindung betrifft weiterhin ein Computerprogrammprodukt zur Durchführung des Verfahrens.Das Verfahren und das Computerprogrammprodukt ermöglichen die Regeneration eines Partikelfilters bei für die Regeneration ungünstigen Betriebsbedingungen der Brennkraftmaschine. The invention relates to methods for the regeneration of a particulate filter in an exhaust aftertreatment system of an internal combustion engine by combustion of the adsorbed on the particulate filter particles. The invention also relates to a computer program product for carrying out the method. The method and the computer program product enable the regeneration of a particle filter at unfavorable conditions for the regeneration Operating conditions of the internal combustion engine.

Control device for internal combustion engine

提供一种用于内燃发动机的控制装置，该内燃发动机除能够执行按期喷射之外还能够执行附加喷射，该控制装置包括电子控制单元。电子控制单元构造成在压缩上止点之前的预定曲轴角度处计算点火正时。电子控制单元构造成在预定时间间隔处计算燃料的喷射量并且在预定曲轴角度处计算燃料的喷射量。电子控制单元构造成控制燃料喷射阀使得在按期喷射了在预定时间间隔处计算出的喷射量的燃料之后当在预定曲轴角度处计算出的所述喷射量由于计算出的点火正时的延迟而增加时，燃料喷射阀在点火之前以增加量附加地喷射燃料。

For controlling the method and system of internal combustion engine

本发明涉及用于控制压缩点火式内燃机的方法，所述内燃机具有至少一个燃烧室，其中，使用进气阀，控制所述燃烧室的进气，并且使用排气阀，控制所述燃烧室的排出。该方法包括：‑取决于往复构件在所述燃烧室中的位置，控制所述进气阀的打开和所述排气阀的关闭，其中，所述进气阀的打开和所述排气阀的关闭分别相对于所述往复构件的位置可以被独立控制，并且‑其中，在一个操作模式中，分别控制所述进气阀的打开和所述排气阀的关闭，使得两个阀在可变长度的时段期间同时打开。

Method and system for pre-ignition control

FIELD: internal combustion engines.SUBSTANCE: invention relates to methods and systems for addressing pre-ignition occurring in an engine operating with blow-though air delivery. Variable cam timing device used to provide positive intake to exhaust valve overlap is adjusted in response to an indication of pre-ignition to transiently reduce valve overlap. Pre-ignition mitigating load limiting and enrichment applied during a blow-through mode is adjusted differently from those applied when blow-through air is not being delivered.EFFECT: technical result is the prevention of pre-ignition.19 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F01L 1/34 (2006.01) F01N 11/00 (2006.01) F01N 3/10 (2006.01) F02B 33/44 (2006.01) F02B 37/16 (2006.01) F02D 13/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА F02D 21/08 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ F02D 35/02 (2006.01) F02D 41/00 (2006.01) F02D 41/02 (2006.01) (12) (13) 2 669 433 C2 F02D 41/10 (2006.01) F02D 45/00 (2006.01) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК (21)(22) Заявка: 2015101848, 21.01.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.10.2018 Приоритет(ы): (30) Конвенционный приоритет: 23.01.2014 US 14/162,634 (43) Дата публикации заявки: 10.08.2016 Бюл. № 2 6 6 9 4 3 3 R U (56) Список документов, цитированных в отчете о поиске: SU 1760140 A1, 07.09.1992. RU (45) Опубликовано: 11.10.2018 Бюл. № 29 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" 2191910 C2, 27.10.2002. US 6971360 B2, 06.12.2005. US 8061136 B2, 22.11.2011. JP 2007263082 A, 11.10.2007. (54) СПОСОБ И СИСТЕМА ДЛЯ УПРАВЛЕНИЯ ПРЕЖДЕВРЕМЕННЫМ ВОСПЛАМЕНЕНИЕМ (57) Реферат: Изобретение относится к способам и системам чтобы кратковременно уменьшать перекрытие для подавления преждевременного клапанов. Подавляющие преждевременное воспламенения в двигателе, работающем с воспламенение ограничение нагрузки и продувочным воздухом. Устройство обогащение, применяемые во время ...

Method (embodiments) and engine exhaust system temperature control system

FIELD: internal combustion engines. SUBSTANCE: invention can be used in the internal combustion engines. In one of the examples, the fuel injection into the engine exhaust system can be performed so that temperature of the exhaust system components can be reduced at engine operation at high rotation speeds and loads. EFFECT: disclosed are methods and systems for improving engine operation at high speeds of rotation and loads. 20 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 701 927 C1 (51) МПК F02B 41/10 (2006.01) F02D 41/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01N 3/204 (2019.05); F01N 3/2046 (2019.05); F01N 3/2066 (2019.05); F02B 37/105 (2019.05); F02B 37/166 (2019.05); F02B 37/168 (2019.05); F02B 39/12 (2019.05); F02D 13/0269 (2019.05); F02D 41/0007 (2019.05) (21)(22) Заявка: 2016123338, 14.06.2016 14.06.2016 (73) Патентообладатель(и): Форд Глобал Текнолоджиз, ЛЛК (US) Дата регистрации: 02.10.2019 22.06.2015 US 14/746,616 (45) Опубликовано: 02.10.2019 Бюл. № 28 2 7 0 1 9 2 7 R U (54) СПОСОБ (ВАРИАНТЫ) И СИСТЕМА ДЛЯ КОНТРОЛЯ ТЕМПЕРАТУРЫ ВЫПУСКНОЙ СИСТЕМЫ ДВИГАТЕЛЯ (57) Реферат: Изобретение может быть использовано в осуществляться таким образом, что температура двигателях внутреннего сгорания. Раскрыты компонентов выпускной системы может быть способы и системы для улучшения работы снижена при работе двигателя при высоких двигателя при высоких скоростях вращения и скоростях вращения и нагрузках. 3 н. и 17 з.п. фнагрузках. В одном из примеров впрыск топлива лы, 9 ил. в выпускную систему двигателя может Стр.: 1 C 1 C 1 Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара 2 7 0 1 9 2 7 (56) Список документов, цитированных в отчете о поиске: US 20140158072 A1, 12.06.2014. US 20050229900 A1, 20.10.2005. RU 2231658 C2, 27.06.2004. Приоритет(ы): (30) Конвенционный приоритет: R U (24) Дата начала отсчета срока действия патента: (72) Автор(ы): МАРТИН Дуглас Реймонд (US), ...

Control device, system and control method and power control unit, gas turbine and power-control method

一种具备压缩机、燃烧器及涡轮的燃气轮机的控制装置，根据燃气轮机的负荷，执行改变用于对燃气轮机的运行进行控制的运行控制点的负荷控制，基于额定调温线(T1)、先行设定线(T2)及临界调温线(T3)，控制燃气轮机的运行，额定调温线(T1)用于将预定的负荷下的废气温度调温控制成额定废气温度，使得燃气轮机的性能变成额定性能，先行设定线(T2)用于将预定的负荷下的废气温度设定为比额定废气温度先降低的先行废气温度，临界调温线(T3)用于对预定的负荷下的废气温度进行调温控制，使得不会超过比额定废气温度高的临界废气温度。

Control device for internal combustion engine

【課題】一部の気筒における燃料供給を停止したことに起因して三元触媒３２の温度が過度に上昇することを抑制できるようにした内燃機関の制御装置を提供する。【解決手段】ＣＰＵ７２は、ＧＰＦ３４が捕集するＰＭ量が所定量に達する場合、ＧＰＦ３４を再生する再生処理を実行する。すなわち、ＣＰＵ７２は、気筒＃１～＃４のうちのいずれか１つへの燃料の供給を停止する一方、残りの気筒に供給する燃料量を増量する。ＣＰＵ７２は、三元触媒３２の温度が第１温度以上となる場合、排気の温度を低下させるべく、噴射量を増量する。ＣＰＵ７２は、再生処理の実行中に三元触媒３２の温度が第１温度以上となる場合、噴射量を増量しない。【選択図】図１

Patent RU2015101848A3

`”ВУ“” 2015101848°” АЗ Дата публикации: 02.08.2018 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2015101848/06(002751) 21.01.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14/162,634 23.01.2014 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СПОСОБ И СИСТЕМА ДЛЯ УПРАВЛЕНИЯ ПРЕЖДЕВРЕМЕННЫМ ВОСПЛАМЕНЕНИЕМ Заявитель: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи, ЦЗ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕОТГ. 1/34 (2006.01) Е02В 37/16 (2006.01) Е020 41/00 (2006.01) ЕО1М 11/00 (2006.01) Е02р0 13/02 (2006.01) Е02р 41/02 (2006.01) ЕО1М 3/10 (2006.01) Е020 21/08 (2006.01) Е02р 41/10 (2006.01) Е02В 33/44 (2006.01) Е020 35/02 (2006.01) Е020 45/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВОТ. 1/00-35/00; НОТМ 1/00-13/00; ВО2В 1/00-79/00; 802) 1/00-45/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, ...

Safety device for cylinder number controlled engine

Device for controlling internal combustion engine

To provide a control apparatus for an internal combustion engine that, in a turbocharged internal combustion engine including a waste gate valve, can favorably prevent an exhaust system part disposed downstream of a turbine from overheating, regardless of opening of the waste gate valve. The control apparatus includes a turbocharger (20) having a turbine (20b) which is operative by exhaust energy and is disposed in an exhaust passage (14). The control apparatus further includes a WGV (32) for opening or closing an exhaust bypass passage (30) that bypasses the turbine (20b). Timing to start fuel quantity increase control for preventing an exhaust system part, such as a catalyst (34), from overheating is advanced when the WGV (32) is in an open state than when the WGV (32) is in a closed state.

Control device, system, and control method, and power control device, gas turbine, and power control method

압축기와, 연소기와, 터빈을 구비하는 가스 터빈의 제어 장치에 있어서, 가스 터빈의 부하에 따라, 가스 터빈의 운전을 제어하기 위한 운전 제어점을 변화시키는 부하 제어를 실행하고 있고, 소정의 부하에 있어서의 배기 가스 온도가 가스 터빈의 성능이 정격 성능이 되는 정격 배기 가스 온도로 온도 조절 제어하기 위한 정격 온도 조절선 T1과, 소정의 부하에 있어서의 배기 가스 온도가 정격 배기 가스 온도보다 선행하여 낮아지는 선행 배기 가스 온도로 설정하기 위한 선행 설정선 T2와, 소정의 부하에 있어서의 배기 가스 온도가 정격 배기 가스 온도보다 높은 한계 배기 가스 온도를 넘지 않도록 온도 조절 제어하기 위한 한계 온도 조절선 T3에 근거하여, 가스 터빈의 운전을 제어한다.

Exhaust gas purification system for internal combustion engine

Exhaust gas cleaning system for internal combustion engine

本发明的课题是在内燃机的排气通路中配置有包含SCR催化剂的排气净化装置的排气净化系统中，抑制对内燃机的运转状态、排气净化装置的净化性能造成不良影响，并且调整NO 2 比率。为解决这样的课题，本发明的内燃机的排气净化系统具备：处理单元，其在要使排气的NO 2 比率增加的情况下执行使在内燃机中燃烧的混合气的空燃比增加的处理和/或使通过EGR装置所回流的EGR气体增加的处理；和控制单元，其控制处理单元，以使得在排气净化装置的温度高的情况下与其温度低的情况相比，空燃比的增加量变大，并且EGR气体的增加量变少。

Method and device for increasing and/or lowering temperature of exhaust gases of internal combustion engine with device for reducing toxicity of exhaust gases located in pipeline of exhaust gases

FIELD: machine building. SUBSTANCE: invention can be used in the internal combustion engines. Method of controlling temperature of exhaust gases of an internal combustion engine with a device for reducing toxicity of exhaust gases located in the outlet pipeline. To control temperature of exhaust gases to reduce toxicity of exhaust gases mode (S4) of electric motor and/or mode (S3) of generator of electrically operated on exhaust gases of turbo-compressor is used. Mode of electric motor and/or mode of generator of electrically operated on exhaust gases of turbo-compressor is started (S1, S2) after fulfillment of activation condition for control of temperature of exhaust gases. Mode of generator of electrically operated turbo compressor operating on exhaust gases, when performance of activation condition shows that actual temperature of exhaust gases is subject to increase. Electric motor mode of electrically operated exhaust gas turbo compressor is started when the condition of activation shows that actual temperature of exhaust gases is subject to reduction. Disclosed are a control device and a vehicle. EFFECT: technical result consists in reduction of toxicity of exhaust gases due to quick achievement of device for reducing toxicity of exhaust gases of starting temperature. 8 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 713 783 C2 (51) МПК F01N 9/00 (2006.01) F02B 39/10 (2006.01) F02B 37/00 (2006.01) F01N 3/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01N 3/02 (2019.05); F01N 3/0235 (2019.05); F01N 3/2046 (2019.05); F02B 39/10 (2019.05); F02D 41/0007 (2019.05); F02D 41/024 (2019.05); F02D 41/0245 (2019.05) (21)(22) Заявка: 2016104505, 11.02.2016 11.02.2016 (73) Патентообладатель(и): МАН ТРАК УНД БАС АГ (DE) Дата регистрации: 07.02.2020 12.02.2015 DE 102015001797.7 (43) Дата публикации заявки: 16.08.2017 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: US 2006236692 A1, 26.10. ...

Method for controlling internal combustion engine

本发明描述了一种用于控制燃烧发动机（1）的方法，该燃烧发动机包括进入回路（2）和排出回路（3），该方法包括以下步骤：‑ 确定流经燃烧发动机的排出回路（3）的排气的温度（步骤60），‑ 比较所确定的温度与最大阈值（步骤61），‑ 如果所确定的温度小于最大阈值，则通过将运行富燃料度减少预定值并且通过将在燃烧发动机（1）的排出回路（3）和进入回路（2）之间的再循环排气的比率同步地增加预定值来控制发动机（步骤64）。

Exhaust gas treatment of an internal combustion engine

Beschrieben ist ein Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors (10). In jedem Brennraum (12) ist mindestens eine Zündeinrichtung (14) angeordnet, um ein stöchiometrisches Verbrennungsluftgemisch in dem Brennraum (12) zu zünden. Die Abgasanlage (40) weist einen Abgaskanal (46) auf, in welchem mindestens eine Abgasnachbehandlungskomponente (50, 52, 54) angeordnet ist. Die Abgasanlage (40) ist über eine Abgasrückführung (60) mit einem Ansaugtrakt (20) des Verbrennungsmotors (10) verbunden, wobei in der Abgasrückführung (60) ein Abgasrückführungskühler (70) angeordnet ist. Das Verfahren umfasst folgende Schritte:- Betreiben des Verbrennungsmotors (10) mit einem stöchiometrischen Verbrennungsluftgemisch (λ = 1), wobei das Abgas des Verbrennungsmotors (10) durch die mindestens eine Abgasnachbehandlungskomponente (50, 52,54) gereinigt wird,- Ermitteln eines Betriebspunktes des Verbrennungsmotors (10), wobei eine Abgasrückführungsrate bei konstantem Lastpunkt des Verbrennungsmotors (10) angepasst wird, um die Abgastemperatur (T_EG) zu verändern. A method for exhaust gas aftertreatment of an internal combustion engine (10) is described. At least one ignition device (14) is arranged in each combustion chamber (12) in order to ignite a stoichiometric combustion air mixture in the combustion chamber (12). The exhaust gas system (40) has an exhaust gas duct (46) in which at least one exhaust gas aftertreatment component (50, 52, 54) is arranged. The exhaust system (40) is connected via an exhaust gas recirculation (60) to an intake tract (20) of the internal combustion engine (10), an exhaust gas recirculation cooler (70) being arranged in the exhaust gas recirculation (60). The method comprises the following steps: operating the internal combustion engine (10) with a stoichiometric combustion air mixture (λ = 1), the exhaust gas of the internal combustion engine (10) being cleaned by the at least one exhaust gas aftertreatment component (50 ...

METHOD FOR CONTROLLING A THERMAL ENGINE

La présente invention présente un procédé de contrôle d'un moteur thermique (1), ce moteur thermique comportant un circuit d'admission (2) et un circuit d'échappement (3), ce procédé comportant les étapes : Déterminer une température des gaz d'échappement circulant dans le circuit d'échappement (3) du moteur thermique (étape 60), Comparer la température déterminée avec un seuil maximal (étape 61) Si la température déterminée est inférieure au seuil maximal, contrôler le moteur en décrémentant la richesse de fonctionnement d'une valeur prédéterminée et en incrémentant conjointement d'une valeur prédéterminée un taux de gaz d'échappement recirculés entre le circuit d'échappement (3) et le circuit d'admission (2) du moteur thermique (1) (étape 64). The present invention presents a method of controlling a heat engine (1), this heat engine comprising an intake circuit (2) and an exhaust circuit (3), this process comprising the steps of: determining a temperature of the gases Exhaust circulating in the exhaust circuit (3) of the engine (step 60), Compare the determined temperature with a maximum threshold (step 61) If the determined temperature is below the maximum threshold, control the engine by decreasing the wealth of operation of a predetermined value and by conjointly incrementing by a predetermined value a rate of recirculated exhaust gas between the exhaust circuit (3) and the intake circuit (2) of the heat engine (1) (step 64).

FUEL INJECTION SYSTEM TYPE A ACCUMULATION

REGENERATION WITHOUT OVERHEATING AN AUTOMOTIVE VEHICLE POST-PROCESSING DEVICE

METHOD AND DEVICE FOR REGULATING THE REGENERATION OF A PARTICLE FILTER

OXIDATION CATALYST PROTECTION PLACED AHEAD OF PARTICULATE FILTER FOR DIESEL ENGINE BY FUEL INJECTION LIMITATION

L'invention concerne un procédé de commande d'un moteur (2) comprenant un convertisseur catalytique à oxydation (4), le procédé comprenant l'étape consistant, si certains critères sont vérifiés, à calculer une quantité maximale de carburant à post-injecter à partir d'un débit d'air mesuré et d'une température limite de fonctionnement du convertisseur catalytique à oxydation (4). The invention relates to a method of controlling an engine (2) comprising an oxidation catalytic converter (4), the method comprising the step of, if certain criteria are verified, calculating a maximum amount of fuel to be post-injected from a measured airflow and an operating limit temperature of the oxidation catalytic converter (4).

METHOD AND DEVICE FOR REGULATING THE REGENERATION OF A PARTICLE FILTER

Dispositif de régulation de la régénération d'un filtre à particules (42) installé dans le système des gaz d'échappement d'un moteur thermique (10) avec un catalyseur d'oxydation (41) et une unité de commande. L'unité de commande comporte des régulateurs PI (57, 58) ainsi que d'autres installations pour un circuit de régulation interne et externe (51, 52) pour prédéfinir des motifs d'injection (60, 70) ainsi que des mémoires pour des champs de caractéristiques de températures de consigne servant à prédéfinir des températures de consigne (53, 55) dépendant du point de fonctionnement, en amont du catalyseur d'oxydation (41) et en amont du filtre à particules (42). Pour la régénération, on détermine une charge de noir de fumée, spécifique, et on réduit la température dans le catalyseur (41) et dans le filtre (42) en dessous de la température de consigne respective (53, 55). A device for regulating the regeneration of a particulate filter (42) installed in the exhaust system of a heat engine (10) with an oxidation catalyst (41) and a control unit. The control unit comprises PI controllers (57, 58) and other installations for an internal and external regulation circuit (51, 52) for predefining injection patterns (60, 70) as well as memories for setpoint temperature characteristic fields for presetting operating-point dependent setpoint temperatures (53, 55) upstream of the oxidation catalyst (41) and upstream of the particulate filter (42). For the regeneration, a specific scavenger charge is determined, and the temperature in the catalyst (41) and the filter (42) is reduced below the respective setpoint temperature (53, 55).

METHOD AND CONTROL APPARATUS FOR MANAGING AN INTERNAL COMBUSTION ENGINE WITH AIR PASSAGE

Procédé de commande d'un moteur à combustion interne (10) équipé d'une chambre de combustion (12), d'une commande variable des soupapes d'échange de gaz (16, 18) de la chambre de combustion (12), d'un système d'admission (20), d'un système d'échappement (22) avec un turbocompresseur (26) et au moins un catalyseur (52). On commande la masse d'air (mL-abg) qui passe du système d'admission (20) dans le système d'échappement (22) en cas de chevauchement des soupapes d'échange de gaz (16, 18) par action sur la commande variable. On assure un premier degré d'enrichissement du mélange carburant/air dans chambre de combustion, on vérifie s'il y a un risque de surchauffe (TR) du catalyseur (52) et en cas de risque on prend une action qui limite la quantité de chaleur (Q) libérée par réaction exothermique dans le catalyseur (52). L'invention concerne également un appareil de commande (30) pour la mise en oeuvre du procédé. A method of controlling an internal combustion engine (10) equipped with a combustion chamber (12), a variable control of the gas exchange valves (16, 18) of the combustion chamber (12), an intake system (20), an exhaust system (22) with a turbocharger (26) and at least one catalyst (52). The mass of air (mL-abg) that passes from the intake system (20) into the exhaust system (22) is controlled in the event of an overlap of the gas exchange valves (16, 18) by action on the variable order. It provides a first degree of enrichment of the fuel / air mixture in the combustion chamber, it is checked whether there is a risk of overheating (TR) of the catalyst (52) and in case of risk we take an action that limits the amount of heat (Q) released by exothermic reaction in the catalyst (52). The invention also relates to a control apparatus (30) for carrying out the method.

METHOD FOR MONITORING THE CONVERSION SUCCESS OF POLLUTANTS IN AN EXHAUST GAS POST-PROCESSING SYSTEM

METHOD FOR CONTROLLING A THERMAL ENGINE

L'invention porte principalement sur un procédé de pilotage d'un moteur thermique (10), notamment d'un véhicule automobile, caractérisé en ce qu'il comporte: - une étape de mesure d'une quantité de particules accumulées dans le filtre à particules (16) dans le cas où des conditions de roulage du véhicule automobile sont réunies pour effectuer une telle mesure, - une étape de génération d'une information, dite de client critique, dans le cas où les conditions de roulage du véhicule automobile ne sont pas réunies pour effectuer la mesure de la quantité de particules accumulées dans le filtre à particules (16), - et, lorsque la quantité de particules accumulées dépasse un seuil et/ou lorsque l'information, dite de client critique, est générée sur une distance de roulage dépassant un seuil ou pendant une durée dépassant un seuil, - ledit procédé comporte une étape d'activation d'au moins un mode de reconfiguration du moteur thermique (10) visant à empêcher toute régénération du filtre à particules (16). The invention relates primarily to a method for controlling a heat engine (10), particularly a motor vehicle, characterized in that it comprises: - a step of measuring a quantity of particles accumulated in the filter to particles (16) in the case where driving conditions of the motor vehicle are met to perform such a measurement, - a step of generating information, called critical customer, in the case where the driving conditions of the motor vehicle do not are not met to measure the amount of particles accumulated in the particulate filter (16), and, when the amount of accumulated particles exceeds a threshold and / or when the so-called critical customer information is generated on a running distance exceeding a threshold or for a duration exceeding a threshold, - said method comprises a step of activating at least one mode of reconfiguration of the heat engine (10) aimed at preventing r any regeneration of the particulate filter ( ...

Internal combustion engine system, power output apparatus, vehicle, and method for controlling the internal combustion engine system

When a catalyst temperature θc is higher than a threshold value θref (S 320 ), an increase coefficient Kf is set so as to tend to be larger as opening and closing timing of an intake valve is advanced, an intake air flow Qa is larger, and a rotation speed Ne of the engine 22 becomes higher (S 340 ), a target fuel injection quantity Qf* is set based on a product of a basic fuel injection quantity Qftmp set based on the intake air flow Qa and an increase coefficient Kf (S 350 ), and fuel injection of the set target fuel injection quantity Qf* is performed (S 360 ).

Device for controlling an internal combustion engine of a motor vehicle with improved scanning strategy

The device is intended to determine a maximum permissible temperature of a catalyst (20) based on richness of gases and the rate of oxygen, so as to modify a parameter of a sweeping rate of a supercharged direct-injection petrol engine (10) or richness of gases in the engine when the temperature of the catalyst exceeds the maximum permissible temperature. The device modifies the parameters of sweeping rate of engine, richness of gases, and rate of opening/closing of a pass valve of an automatically-controlled governor of a turbocompressor of the engine.

Exhaust gas purification system for internal combustion engine

本発明は、ＳＣＲ触媒を含む排気浄化装置が内燃機関の排気通路に配置された排気浄化システムにおいて、内燃機関の運転状態や排気浄化装置の浄化性能に悪影響が及ぶことを抑制しつつ、ＮＯ２比率を調整することを課題とする。このような課題を解決するために、本発明の内燃機関の排気浄化システムは、排気のＮＯ２比率を増加させる場合に、内燃機関で燃焼される混合気の空燃比を増加させる処理、又はＥＧＲ装置により還流されるＥＧＲガスを増加させる処理の少なくとも一方を実行する処理手段と、排気浄化装置の温度が高い場合は低い場合に比べ、空燃比の増加量が大きくなるとともにＥＧＲガスの増加量が少なくなるように処理手段を制御する制御手段と、を備えるようにした。 The present invention relates to an exhaust gas purification system in which an exhaust gas purification device including an SCR catalyst is disposed in an exhaust passage of an internal combustion engine, while suppressing adverse effects on the operating state of the internal combustion engine and the purification performance of the exhaust gas purification device. It is an issue to adjust. In order to solve such a problem, an exhaust gas purification system for an internal combustion engine according to the present invention is a process for increasing the air-fuel ratio of an air-fuel mixture combusted in an internal combustion engine or an EGR device when the NO2 ratio of exhaust gas is increased. When the temperature of the exhaust gas purification device is high and the temperature of the exhaust gas purification device is high, the increase amount of the air-fuel ratio is small and the increase amount of the EGR gas is small. And a control means for controlling the processing means.

Overcombustion detection method during particulate filter regeneration processing

Method and arrangement for cooling an exhaust system

Method of engine operation (versions)

FIELD: engines and pumps. SUBSTANCE: methods and system for controlling injection of water into the disconnected cylinders based on duration of engine operation in mode with one or several disconnected cylinders and the temperature of catalytic converter of exhaust gases are proposed. The invention enables to reduce saturation of catalytic converter with oxygen due to injection of water into disconnected cylinders, which expands and turns into steam, prevents air from getting into the disconnected cylinders and entering the catalytic converter. EFFECT: reduction of necessity for regeneration of catalytic converter of exhaust gases after disconnection of cylinders, prevention of decrease of catalytic converter efficiency, improvement of fuel efficiency and reduction of toxicity. 18 cl, 8 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 641 423 C2 (51) МПК F02B 47/02 (2006.01) F02D 17/02 (2006.01) F02M 25/038 (2006.01) F01N 3/04 (2006.01) F01N 3/20 (2006.01) F02D 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F01N 3/04 (2017.08); F02D 41/0087 (2017.08); F02D 41/0275 (2017.08); F02D 41/123 (2017.08) (21)(22) Заявка: 2014124480, 17.06.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Форд Глобал Технолоджис, ЛЛК (US) 17.01.2018 (56) Список документов, цитированных в отчете о поиске: RU 2472023 C2, 10.01.2013. US 17.06.2013 US 13/919,935 (43) Дата публикации заявки: 27.12.2015 Бюл. № 36 7877189 B2, 25.01.2011. US 20070191183 A1, 16.08.2007. (45) Опубликовано: 17.01.2018 Бюл. № 2 2 6 4 1 4 2 3 R U (54) СПОСОБ ЭКСПЛУАТАЦИИ ДВИГАТЕЛЯ (ВАРИАНТЫ) (57) Реферат: Изобретение может быть использовано в которая расширяясь и превращаясь в пар, двигателях внутреннего сгорания. Предложены предотвращает поступление воздуха в способы и система регулирования впрыска воды отключенные цилиндры и из них в каталитический в отключенные цилиндры на основании нейтрализатор. В ...

Exhaust purifying apparatus and exhaust purifying method for internal combustion engine

Exhaust gas purification device for internal combustion engine

Method for controlling the temperature of the gases in an internal combustion engine exhaust circuit

L'invention a pour objet un procédé de contrôle de la température interne d'un catalyseur dans le circuit d'échappement (2) d'un moteur (10), dans lequel le catalyseur (21 ) est soumis périodiquement à des phases de régénération par élévation de la température des gaz à une température de consigne. Selon l'invention, à partir de la température (T<SUB>e</SUB>) et du débit (Q<SUB>eCh</SUB>) des gaz, et compte tenu de leur composition, on détermine la puissance de consigne W<SUB>c</SUB> nécessaire à l'obtention de la température de consigne T<SUB>3</SUB> et la puissance entrante W<SUB>e</SUB> correspondant à la somme de la puissance de chauffage direct due à la température T<SUB>e</SUB> des gaz et de leur puissance potentielle de réaction exothermique W<SUB>exo</SUB> dans le catalyseur (21 ) et l'on ajuste la composition des gaz avant l'entrée dans le catalyseur (21) de façon à compenser la différence entre la puissance entrante We par une modification correspondante de la puissance potentielle de réaction exothermique.

CONTROL PROCEDURE OF A THERMAL ENGINE

L'invention porte principalement sur un procédé de pilotage d'un moteur thermique (10), notamment d'un véhicule automobile, caractérisé en ce qu'il comporte: - une étape de mesure d'une quantité de particules accumulées dans le filtre à particules (16) dans le cas où des conditions de roulage du véhicule automobile sont réunies pour effectuer une telle mesure, - une étape de génération d'une information, dite de client critique, dans le cas où les conditions de roulage du véhicule automobile ne sont pas réunies pour effectuer la mesure de la quantité de particules accumulées dans le filtre à particules (16), - et, lorsque la quantité de particules accumulées dépasse un seuil et/ou lorsque l'information, dite de client critique, est générée sur une distance de roulage dépassant un seuil ou pendant une durée dépassant un seuil, - ledit procédé comporte une étape d'activation d'au moins un mode de reconfiguration du moteur thermique (10) visant à empêcher toute régénération du filtre à particules (16). The invention mainly relates to a method for controlling a heat engine (10), in particular a motor vehicle, characterized in that it comprises: a step of measuring a quantity of particles accumulated in the filter. particles (16) in the case where the driving conditions of the motor vehicle are met to perform such a measurement, - a step of generating information, called critical customer, in the case where the driving conditions of the motor vehicle do not are not assembled to measure the quantity of particles accumulated in the particle filter (16), - and, when the quantity of accumulated particles exceeds a threshold and / or when the so-called critical customer information is generated on a driving distance exceeding a threshold or for a period exceeding a threshold, - said method comprises a step of activating at least one mode of reconfiguration of the heat engine (10) aimed at preventing any regeneration of the filter by rticles ...

Exhaust gas purification device of internal combustion engine

The invention relates to an exhaust gas purification device of an internal combustion engine comprising a catalyst ( 45 ) having an active element and a composite oxidation which carries the active element in an exhaust passage ( 40 ), the active element transforming into the composite oxide as a solid solution when the catalyst temperature is higher than or equal to a predetermined solid solution temperature and the atmosphere of the interior of the catalyst is an oxidation atmosphere and the active element precipitating from the composite oxide when the catalyst temperature is higher than or equal to a predetermined precipitation temperature and the atmosphere of the interior of the catalyst is a reduction atmosphere. According to the invention, in case that the performance of the fuel supply stop control is inhibited when the catalyst temperature is higher than or equal to the performance inhibiting temperature, a temperature lower than a base temperature of the performance inhibiting temperature is set as the performance inhibiting temperature while the use degree of the catalyst is lower than or equal to a predetermined degree and in case that the performance of the fuel supply amount increase control is permitted when the catalyst temperature is higher than or equal to a performance permitting temperature, a temperature higher than a base temperature of the performance permitting temperature is set as the performance permitting temperature while the use degree of the catalyst is smaller than or equal to the predetermined degree.

Device for controlling internal combustion engine

Provided is a device for controlling a turbocharged internal combustion having a waste gate valve, the device being adapted to allow the parts of the exhaust system disposed on the downstream side of the turbine to be favorably inhibited from overheating irrespective of the opening position of the waste gate valve. The control device comprises: a turbocharger (20) in which a turbine (20b) operated by exhaust energy is provided to an exhaust passage (14); and a WGV (32) responsible for opening and closing an exhaust bypass passage (30) for bypassing the turbine (20b). Controlling the increase in fuel feel rate in order to inhibit a catalyst (34) and other parts of the exhaust system from overheating is started earlier when the WGV (32) is in an open state than when the WGV (32) is in a closed state.

Engine with turbocharger

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method for calibration of an engine controller and engine controller obtained using said method

The device for measuring combustion engine (14) exhaust gas (18) temperature in the exhaust system catalyzer (12) has an image recording device (36), the objective (40) of which is aimed, at least some of the time, at one or more measurement surfaces of the catalyzer through which the gas passes. An evaluation device is used to analyze the images and thus determine the temperature profile of the measurement surface or surfaces. An independent claim is made for a method for determining the temperature of exhaust gas passing through a catalyzer, wherein the temperature of a measurement surface of the catalyzer is optically measured, especially thermographically.

Fuel injection control device for controlling temperature increase of catalyst to clean exhaust gas of combustion engine of vehicle, has fuel increase control unit increasing fuel injection amount into combustion engine

The device (24) has a control unit (31) for preventing fuel interrupt control when temperature of a catalyst is higher than or equal to set temperature. An acceleration switching determining unit (36) determines whether acceleration of a vehicle is switched over a set-up period. A fuel increase control unit increases a fuel injection amount into a combustion engine (1) when the catalyst temperature is higher than or equal to another set temperature such that the acceleration switchover is detected by the acceleration switching determining unit.

Method and device for operating an internal combustion engine

본 발명은 하나 이상의 실린더 및, 피보호 부품을 포함하는 배기 가스관을 포함하는 내연기관에 관한 것이다. 피보호 부품의 평가된 동적 부품 온도는 내연기관의 섹션의 동적 거동을 고려하여 내연기관의 하나 이상의 작동 변수에 따라 결정된다. 피보호 부품의 평가된 정적 부품 온도는 내연기관의 섹션의 동적 거동을 고려하지 않고 내연기관의 하나 이상의 작동 변수에 따라 결정된다. 실제값은 피보호 부품의 평가된 동적 및 정적 부품 온도에 따라 부품의 부품 온도를 결정한다. 상기 보품의 보호 조치는 피보호 부품의 부품 온도의 실제 값에 따라 실시된다. The present invention relates to an internal combustion engine comprising at least one cylinder and an exhaust gas pipe comprising a part to be protected. The estimated dynamic part temperature of the part to be protected is determined in accordance with one or more operating variables of the internal combustion engine taking into account the dynamic behavior of the section of the internal combustion engine. The estimated static part temperature of the part to be protected is determined in accordance with one or more operating parameters of the internal combustion engine without taking into account the dynamic behavior of the sections of the internal combustion engine. The actual value determines the part temperature of the part according to the evaluated dynamic and static part temperature of the part being protected. The protection of the treasure is carried out in accordance with the actual value of the part temperature of the protected part.

Temperature control method and device for engine exhaust manifold

本发明公开一种发动机排气歧管的温度控制方法及装置，所述方法包括：获取发动机排气歧管当前温度，根据所述当前温度和目标温度确定第一频率，以所述第一频率输出第一步长，所述第一频率与所述当前温度和目标温度的差值正相关；在每次输出所述第一步长时，累加所述第一步长至第一当前喷油系数，以调整所述发动机排气歧管的温度，所述第一当前喷油系数是所述第一步长被输出时的喷油系数，所述喷油系数用于控制喷油量。所述方法及装置可以改善发动机排气歧管的温度控制的控制效果。

System and method for controlling the emissions of a spark-ignition internal combustion engine of a motor-vehicle

A system for controlling emissions of a motor-vehicle spark-ignition internal combustion engine includes first and second exhaust gas treatment devices and a secondary air feeding system for feeding secondary air into an exhaust gas conduit, between the first and second exhaust gas treatment devices. The secondary air feeding system is activated only when engine load is greater than a predetermined load value and/or when engine rotational speed is greater than a predetermined speed value. In this condition, an air/fuel ratio of the engine is kept at a value lower than the stoichiometric value, so as to feed the engine with a rich mixture. In one example, an electronic controller is configured for controlling activation of the secondary air feeding system on the basis of a map, as a function of values of the engine load and rotational speed. The map is predetermined depending upon specific characteristics of the engine.

Exhaust gas purification system

　本願発明は、排気ガス浄化装置５０の再生に際して、燃費向上とエンジンオイル希釈の回避とを両立させることを目的としたものである。本願発明の排気ガス浄化システムは、コモンレール式エンジン７０の排気経路７７に配置された排気ガス浄化装置５０と、前記エンジン７０の吸排気系７６，７７に配置された吸気絞り装置８１及び排気絞り装置８２のうち少なくとも一方とを備える。前記排気ガス浄化装置５０の詰り状態が規定水準以上になると、前記吸気絞り装置８１及び前記排気絞り装置８２のうち少なくとも一方を作動させることによって前記エンジン７０からの排気ガス温度を上昇させる補助再生モードを実行する。前記補助再生モードを実行しても前記排気ガス浄化装置５０の詰り状態が改善しない場合は、ポスト噴射Ｅにて燃料を前記排気ガス浄化装置５０内に供給する強制再生モードを実行する。

Internal combustion engine exhaust purification device

A hydrocarbon supply valve (15) and an exhaust gas purification catalyst (13) are arranged in the engine exhaust gas passage of an internal combustion engine. The exhaust gas purification catalyst (13) comprises an upstream catalyst (14a) and a downstream catalyst (14b) arranged in series, and the upstream catalyst (14a) forms a circular truncated cone widening towards the downstream catalyst (14b). The concentration of hydrocarbons flowing into the upstream catalyst (14a) oscillates at an amplitude within a pre-set range of 200ppm or greater and at a period within a pre-set range of 5 seconds or less, thereby reducing the NO x contained in the exhaust gas in the exhaust gas purification catalyst (13).

Control device for internal-combustion engine

A control device for an engine, includes: an air intake controller controlling a quantity of intake air to be supplied to a catalyst provided in an exhaust passage by controlling an open degree of a throttle valve provided in an intake passage; a fuel controller controlling fuel supply to the engine, wherein the fuel controller stops the fuel supply and the air intake controller performs a first control supplying intake air to the catalyst by opening the throttle valve, for a predetermined period of time after an end of the first control, the fuel controller stops the fuel supply, and the air intake controller performs a second control decreasing the open degree of the throttle valve to an open degree smaller than that during the first control, and after the predetermined period of time passes, the fuel controller starts a third control supplying the fuel to the engine.

Method for controlling a heat engine

The present invention describes a method for controlling a heat engine (1), said heat engine comprising an inlet circuit (2) and an exhaust circuit (3), said method comprising the steps: - determining a temperature of the exhaust gas circulating in the exhaust circuit (3) of the heat engine (step 60), - comparing the determined temperature with a maximum threshold (step 61) - if the determined temperature is less than the maximum threshold, controlling the engine by incrementally decreasing the richness of operation by a predetermined value and jointly incrementing by a predetermined value a level of exhaust gas recirculated between the exhaust circuit (3) and the inlet circuit (2) of the heat engine (1) (step 64).

Control device and control method for a hybrid vehicle

Control device for internal combustion engine

Exhaust gas purification system for internal combustion engine

Control device for internal combustion engine and control method for internal combustion engine

Patent RU2016104505A3

Exhaust gas purification system for an internal combustion engine

The deterioration of an exhaust gas purification catalyst is suppressed as much as possible. An exhaust gas purification system for an internal combustion engine comprising: a throttle valve; a turbocharger; an exhaust gas purification catalyst; a bypass passage; a turbo bypass valve (TBV); and a controller. The controller is configured to carry out fuel cut processing and deterioration suppression control. In the deterioration suppression control, when a temperature of the exhaust gas purification catalyst is equal to or higher than a predetermined temperature in the course of the execution of the fuel cut processing, the degree of opening of the TBV becomes smaller, and the degree of opening of the throttle valve becomes larger, than when the temperature of the exhaust gas purification catalyst is lower than the predetermined temperature in the course of the execution of the fuel cut processing.

The emission-control equipment of internal combustion engine and the exhaust gas-cleaning method of internal combustion engine

一种内燃机的排气净化装置，具备第一催化剂、过滤器和电子控制单元。电子控制单元交替地多次实施稀控制和浓控制，所述稀控制是在比从将内燃机的目标空燃比设定成为规定稀空燃比的时间点到从第一催化剂流出的排气的空燃比变得大于理论空燃比的时间点的期间长的整个期间，将目标空燃比设定为所述规定稀空燃比的控制，所述浓控制是在比从将目标空燃比设定成为规定浓空燃比的时间点到从第一催化剂流出的排气的空燃比变得小于理论空燃比的时间点的期间长的整个期间，将目标空燃比设定为所述规定浓空燃比的控制，所述规定稀空燃比是大于理论空燃比的空燃比，所述规定浓空燃比是小于理论空燃比的空燃比。