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Небесная энциклопедия

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

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

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Применить Всего найдено 30080. Отображено 100.
05-01-2012 дата публикации

Hydraulic Drive Apparatus for Construction Equipment

Номер: US20120003069A1
Автор: Kensuke Sato, Kouji Ishikawa, Masanori Ezawa, Naoki Hagiwara, Tsuyoshi Nakamura, Yasuo Okano
Принадлежит: Individual

A hydraulic drive system for a working machine provides improved safety during forced regeneration. Upon input of a forced regeneration command signal from a forced regeneration switch, a controller detects non-operated states of all hydraulic actuators such as an arm cylinder arranged on a hydraulic excavator based on a lock detection signal from a gate lock detection switch, and also an attitude of a front working mechanism. The attitude is proper from the standpoint of safety. The detection is based on an arm angle signal from an arm angle sensor, a bucket angle signal from a bucket angle sensor and a boom pressure signal from a boom pressure sensor. Taking the detection of the non-operated states and proper attitude as conditions, the controller outputs control signals to a boosting proportional solenoid valve and flow-rate controlling, proportional solenoid valve to make a forced regenerator conduct forced regeneration.

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Номер записи: 1
10-03-2013 дата публикации

Подогрев топлива при холодном запуске бензинового двигателя с непосредственным впрыском топлива

Номер: RU0000125633U1
Автор: Джозеф Норман УЛРИ, Росс Дикстра ПЁРСИФУЛЛ
Принадлежит: Форд Глобал Технолоджис, ЛЛК

Установлено, что бензиновые двигатели с непосредственным впрыском топлива выбрасывают твердые частицы на протяжении первых 500 секунд работы из-за топлива, ударяющегося о поверхности камеры сгорания. Для того чтобы значительно предотвратить попадание топлива на поверхности в камере сгорания, топливо можно подогревать. В одном варианте осуществления охлаждающая жидкость двигателя, которая нагревается в частях водяной рубашки, ближайших к выпускным каналам, подается непосредственно в трубку в физическом контакте с направляющей-распределителем для топлива. В некоторых вариантах осуществления трубка оснащена электрическим нагревательным элементом. Если в начальные части холодного запуска насос охлаждающей жидкости выключен, температуру топлива в направляющей-распределителе для топлива повышает электрический нагреватель. После того температура охлаждающей жидкости двигателя повышается, в трубку рядом с направляющей-распределителем для топлива подается вода, теплая охлаждающая жидкость, а нагреватель выключается. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 125 633 (13) U1 (51) МПК F02M 31/16 (2006.01) F02M 53/02 (2006.01) F02N 19/10 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2011141174/06, 11.10.2011 (24) Дата начала отсчета срока действия патента: 11.10.2011 (72) Автор(ы): УЛРИ Джозеф Норман (US), ПЕРСИФУЛЛ Росс Дикстра (US) (73) Патентообладатель(и): Форд Глобал Технолоджис, ЛЛК (US) R U Приоритет(ы): (30) Конвенционный приоритет: 11.10.2010 US 12/901,624 (45) Опубликовано: 10.03.2013 Бюл. № 7 1 2 5 6 3 3 R U (57) Формула полезной модели 1. Бензиновый двигатель с непосредственным впрыском топлива, содержащий: направляющую-распределитель для топлива; топливные форсунки, сообщающиеся с направляющей-распределителем для топлива и подающие топливо в цилиндры двигателя; и контур охлаждающей жидкости, содержащий насос охлаждающей жидкости, предназначенный для циркуляции охлаждающей жидкости через ...

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Номер записи: 2
20-09-2014 дата публикации

Система двигателя

Номер: RU0000145314U1
Автор: Джулия Хелен БАКЛЕНД, Мрдьян Я. ЯНКОВИЧ
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система двигателя, содержащая:двигатель, содержащий впуск и выпуск;турбонагнетатель для подачи подвергнутого наддуву заряда воздуха в двигатель, причем турбонагнетатель включает в себя турбину с приводом от выхлопных газов и впускной компрессор;регулятор давления наддува, присоединенный в параллель турбине;непрерывно регулируемый клапан рециркуляции, присоединенный в параллель компрессору;дроссель, присоединенный к впуску ниже по потоку от компрессора; иконтроллер с машиночитаемыми командами для:осуществления работы системы двигателя в первом режиме, в котором положение регулятора давления наддува, впускного дросселя и положение клапана рециркуляции регулируются для обеспечения требуемого давления наддува на основании требования крутящего момента водителя; иосуществления работы системы двигателя во втором режиме, в котором регулируется только положение регулятора давления наддува и впускного дросселя для обеспечения требуемого давления наддува на основании требования крутящего момента водителя.2. Система по п. 1, в которой контроллер выполнен с возможностью осуществления работы системы двигателя в первом режиме в ответ на отсутствие указания ухудшения работы клапана рециркуляции и осуществления работы системы двигателя во втором режиме в ответ на указание ухудшения работы клапана рециркуляции.3. Система по п. 1, в которой при работе системы двигателя в первом режиме положение регулятора давления наддува регулируется с более высокой регулировкой коэффициента передачи, а при работе системы двигателя во втором режиме положение регулятора давления наддува регулируется с более низкой регул� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 145 314 U1 (51) МПК F02B 37/16 (2006.01) F02D 23/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014109740/06, 13.03.2014 (24) Дата начала отсчета срока действия патента: 13.03.2014 (72) Автор(ы): ЯНКОВИЧ Мрдьян Я. (US), БАКЛЕНД Джулия Хелен (US) 14.03. ...

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Номер записи: 3
10-06-2015 дата публикации

Система для датчика кислорода

Номер: RU0000152517U1
Автор: Гопичандра СУРНИЛЛА, Дэниел Джозеф СТАЙЛЗ, Мэттью Джон ГЕРХАРТ, Тимоти Джозеф КЛАРК
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система двигателя, содержащая:двигатель, включающий в себя впускной коллектор;турбонагнетатель, включающий в себя турбину в системе выпуска и компрессор в системе впуска;охладитель наддувочного воздуха, присоединенный ниже по потоку от компрессора;датчик кислорода на впуске, присоединенный к впускному коллектору ниже по потоку от охладителя наддувочного воздуха и выше по потоку от впускного дросселя;датчик давления, присоединенный к впускному коллектору ниже по потоку от охладителя наддувочного воздуха и выше по потоку от впускного дросселя;систему рециркуляции отработавших газов (EGR), включающую в себя канал EGR и клапан EGR, для рециркуляции отработавших остаточных газов из местоположения ниже по потоку от турбины в местоположение выше по потоку от компрессора; иконтроллер с машиночитаемыми командами для:во время состояния перекрытия топлива при замедлении двигателя,изучения опорной точки для упомянутого датчика кислорода при опорном давлении на впуске; инастройки открывания клапана EGR на основании концентрации кислорода на впуске, оцененной упомянутым датчиком относительно изученной опорной точки, и дополнительно на основании давления на впуске относительно опорного давления на впуске.2. Система по п. 1, дополнительно содержащая датчиквлажности для оценки влажности окружающей среды, причем контроллер включает в себя дополнительные команды для дополнительной настройки открывания клапана EGR на основании влажности окружающей среды относительно опорной влажности. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F02M 25/07 F02D 23/00 F02D 41/00 G01M 15/02 (13) 152 517 U1 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014139711/06, 30.09.2014 (24) Дата начала отсчета срока действия патента: 30.09.2014 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): КЛАРК Тимоти Джозеф (US), СУРНИЛЛА Гопичандра (US), ГЕРХАРТ Мэттью Джон (US), СТАЙЛЗ Дэниел ...

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Номер записи: 4
10-06-2015 дата публикации

Система двигателя

Номер: RU0000152593U1
Автор: Гопичандра СУРНИЛЛА, Джеффри Аллен ДОЭРИНГ, Джон Эрик РОЛЛИНГЕР, Джулия Хелен БАКЛЕНД, Майкл Ховард ШЕЛБИ, Мрдьян Я. ЯНКОВИЧ, Мэттью Джон ГЕРХАРТ, Нагиндер ГОГНА, Ральф Уэйн КАННИНГЭМ, Сьюзанн Кей УЭЙТ
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система двигателя, содержащая:устройство сжатия, содержащее компрессор, расположенный во впускном канале;первый дроссель, расположенный ниже по потоку от компрессора во впускном канале;второй дроссель, расположенный выше по потоку от компрессора во впускном канале;контроллер, содержащий процессор и машиночитаемое запоминающее устройство, содержащее команды, исполняемые процессором, дляоткрывания второго дросселя для повышения давления на впуске первого дросселя при переходном состоянии, когда требуемое давление во впускном коллекторе больше, чем давление на впуске дросселя у первого дросселя, если падение давления на втором дросселе больше, чем пороговое значение давления.2. Система двигателя по п. 1, дополнительно содержащая:систему регулируемой установки фаз клапанного распределения;при этом машиночитаемое запоминающее устройство дополнительно содержит команды, исполняемые процессором для:регулировки системы регулируемой установки фаз клапанного распределения для уменьшения внутреннего захватывания EGR в цилиндрах двигателя при переходном состоянии, когда требуемое абсолютное давление во впускном коллекторе больше, чем давление на впуске дросселя, если коэффициент наполнения цилиндров меньше, чем пороговое значение коэффициента наполнения.3. Система двигателя по п. 1, дополнительно содержащая:систему LP-EGR для подачи LP-EGR из выпускного канала во впускной канал выше по потоку от компрессора;при этом машиночитаемое запоминающее устройство дополнительно содержит команды, исполняемые процессором для:уменьшения потока LP-EGR при переходном состоянии, когда требуемое абсолютное давление во впуск� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 152 593 U1 (51) МПК F02D 23/00 (2006.01) F02D 43/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014120400/06, 20.05.2014 (24) Дата начала отсчета срока действия патента: 20.05.2014 Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: ...

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Номер записи: 5
12-01-2012 дата публикации

Method and control device for determining a characteristic viscosity variable of an oil

Номер: US20120006289A1
Автор: Andreas Petz, Ilia TARASSOV, Marco DI PACE, Piergiacomo Traversa
Принадлежит: Schaeffler Technologies AG and Co KG

In order for the viscosity of the engine oil to be determined as directly as possible, particularly in the case of a motor vehicle with hydraulic control of the gas exchange valves, provision is made for a time period which a hydraulic component, in particular a solenoid valve, requires to move from a first position to a second position to be used as a measure of the viscosity. In particular, an electrical control signal for the solenoid valve is evaluated in the process. An additional sensor arrangement is not required. The determined viscosity is preferably actively used for controlling the gas exchange valves.

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Номер записи: 6
12-01-2012 дата публикации

Assembly for connecting double high pressure wall line to a single-walled high pressure connector

Номер: US20120006299A1
Автор: Dave RICHTER, Joseph Worthington, Josh KNIGHT, Prasad KHEDEKAR, Thomas O. Hahn, Vijay SONAWANE
Принадлежит: Cummins Intellectual Property Inc

This disclosure provides a fuel line assembly for use with an internal combustion engine, an internal combustion engine including such as fuel line assembly, and a method for providing leak containment and detection in a fuel system, each of which include a double-walled fuel line including a high pressure fuel line component. The double-walled fuel line includes a high pressure fuel line, a jacket surrounding the high pressure fuel line, and a low pressure passage between the high pressure fuel line and the jacket. A fuel line nut includes a main body that houses a portion of the high pressure fuel line, and a first end portion supporting an enlarged end portion of the high pressure fuel line protruding from the first end portion. A second end portion of the fuel line nut sealingly connects to the jacket to extend the low pressure passage into an area between the main body and the housed high pressure fuel line. A fuel line connector mechanically and sealingly engages with the fuel line nut to house the supported enlarged end portion of the high pressure fuel line. The fuel line connector can connect to a single-walled high pressure tube provided in a bore of the cylinder head between an inlet of a fuel injector and the environment exterior of the cylinder head.

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Номер записи: 7
12-01-2012 дата публикации

Control device for internal combustion engine

Номер: US20120010801A1
Автор: Kaoru Ohtsuka, Kiyonori Takahashi, Naoto Kato, Shinichi Soejima
Принадлежит: Toyota Motor Corp

In a control device which uses a specific physical quantity as a control variable of an internal combustion engine, and controls the internal combustion engine by manipulation of one or a plurality of actuators, switching of setting of a manipulation variable based on a required value of a physical quantity and setting of the manipulation variables by direct instruction to individual actuators is performed without generating discontinuity in a realized value of the physical quantity. When a manipulation variable instruction value directly designating a manipulation variable of an actuator is present, the manipulation variable instruction value is converted into a value of a physical quantity which is realized in the internal combustion engine by the operation quantity instruction value. When a deviation between a physical quantity conversion value converted from the manipulation variable instruction value and the physical quantity required value is within a predetermined range, switch of information for use in setting of the manipulation variable of each of the actuators is permitted.

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Номер записи: 8
19-01-2012 дата публикации

Catalyst overheat prevention apparatus

Номер: US20120014410A1
Автор: Masahiro Kachi, Shinya Kondo
Принадлежит: Toyota Motor Corp

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.

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Номер записи: 9
19-01-2012 дата публикации

Emission deterioration informing device

Номер: US20120016563A1
Автор: Satoru Ohsaki
Принадлежит: Denso Corp

An emission deterioration informing device senses actual injection timing, at which fuel injection is actually performed from an injector. The device calculates a deviation amount of the sensed actual injection timing from target injection timing. The device has a warning light for informing deterioration of exhaust emission when the calculated deviation amount is larger than a predetermined threshold value. The device determines whether an operation state of an internal combustion engine is an impact state, in which the exhaust emission receives a predetermined influence or more from the deviation of the actual injection timing from the target injection timing. The device allows lighting of the warning light when the operation state is determined to be the impact state. The device prohibits the lighting of the warning light when the operation state is not determined to be the impact state.

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Номер записи: 10
02-02-2012 дата публикации

Calibration scheme for an exhaust gas sensor

Номер: US20120029793A1
Автор: Chuan He, Dave Charles Weber, David John Kubinski, Michiel J. Van Nieuwstadt
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Various systems and methods are described for controlling an engine in a vehicle in response to an equilibrium value of an exhaust gas constituent generated from an exhaust gas sensor. One example method comprises during engine fueling below a threshold amount where at least one intake valve and one exhaust valve of the engine are operating: generating an equilibrium value of an exhaust gas constituent reading of the exhaust gas sensor, the equilibrium value based on a trajectory of the exhaust gas constituent reading, and under selected engine combusting conditions, adjusting the sensor signal based on the equilibrium value.

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Номер записи: 11
09-02-2012 дата публикации

Method and apparatus for operating a compression ignition engine

Номер: US20120031384A1
Автор: Ibrahim Haskara, Yue-Yun Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for operating an internal combustion engine includes monitoring oxygen concentration in an exhaust gas feedstream, a mass flowrate of intake air, and a commanded fuel pulse of fuel. A blend ratio of biodiesel fuel and petrodiesel fuel of the fuel is determined. Engine operation is controlled in response to the blend ratio of biodiesel fuel and petrodiesel fuel of the fuel.

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Номер записи: 12
09-02-2012 дата публикации

Method for managing transitions in internal combustion engines with a hybrid drive powertrain

Номер: US20120035793A1
Автор: Chen-Fang Chang, Jun-Mo Kang, Man-Feng Chang, Paul M. Najt
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for controlling combustion mode transitions for an engine of a hybrid powertrain includes commanding an increase in engine torque, adjusting motor torque output from a torque machine responsive to the operator torque request and the commanded increase in engine torque, executing the combustion mode transition, and operating the torque machine in a torque reclamation state.

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Номер записи: 13
09-02-2012 дата публикации

Onboard network for a vehicle having a start-stop system

Номер: US20120035836A1
Автор: Guenter Reitemann, Marcus Abele, Michael Merkle, Wolfgang Mueller
Принадлежит: ROBERT BOSCH GMBH

An onboard network for a vehicle having a start-stop system includes a central module having a control unit SG and switch elements, the central module including terminals port A, port B, port C, port D, port E, and port F for the connection of further components of the onboard network. A generator of the onboard network is connected to a first terminal port A, a starter is connected to a second terminal port B, at least one energy storage is connected to a third terminal port C, a further energy storage is connected to a fourth terminal port D, and electrical consumers of the onboard network are connected to the fifth terminal port E.

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Номер записи: 14
16-02-2012 дата публикации

Programmable diesel fuel injector

Номер: US20120037126A1
Автор: Charles B. Bright
Принадлежит: Great Plains Diesel Technologies LC

An apparatus for injecting fuel into a combustion chamber of an internal combustion engine. The apparatus includes a solid magnetostrictive material with a favored direction of magnetostrictive response formed into a shape with ends that are substantially parallel to each other and substantially perpendicular to the favored direction of magnetostrictive response. A fuel control valve element is located coaxial to the favored direction of magnetoelastic response of the magnetostrictive material, the element opening inwardly. A solenoid coil is located concentric with the magnetostrictive material and coaxial to the favored direction of magnetoelastic response, the solenoid coil adapted to excite the magnetostrictive material into mechanical motion. An excitation signal is provided within the solenoid coil consisting of a signal, before a main current signal, sufficient to cause magnetic domain alignment but not rotation, and finally a magnetic return path circuit is provided in magnetic communication with the solid magnetostrictive material.

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Номер записи: 15
16-02-2012 дата публикации

Method and apparatus for engine control module wake-up test

Номер: US20120041631A1
Автор: Paul William Rasmussen, Robert Jackson, Wenbo Wang, William R. Cadman
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A fuel system diagnostic wakeup system for a vehicle includes a first control module. The first control module generates a wakeup request, powers off when the vehicle powers off, and powers on and performs a fuel system diagnostic in response to a wakeup signal while the vehicle is powered off. A second control module independent of the first control module receives the wakeup request and generates the wakeup signal after the vehicle powers off based on the wakeup request.

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Номер записи: 16
01-03-2012 дата публикации

Exhaust gas cleaning system for engineering vehicle

Номер: US20120047883A1
Автор: Hidenobu Tsukada, Kensuke Sato, Shohei Kamiya
Принадлежит: HITACHI CONSTRUCTION MACHINERY CO LTD

An exhaust gas cleaning system is provided in an engineering vehicle such as a hydraulic excavator. During automatic regeneration, when a gate lock lever 5 is in a locked state and work is not performed, the exhaust gas temperature detected by the exhaust temperature detecting device 37 may be lower than the threshold value, so temperature-rising assistance is started as follows. The minimum engine output PS 1 (pump discharge pressure P 1 and pump discharge amount Q 1 ) is brought to engine output PS 2 (pump discharge pressure P 2 and pump discharge amount Q 2 ). In this way, a hydraulic load is applied to an engine to thereby increase exhaust gas temperature. When the work is resumed during the regeneration, an operator pulls down the gate lock lever to the first position A, and the engine output is returned to PS 1. Thus, the temperature-rising assistance is stopped, however the automatic regeneration is continued.

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Номер записи: 17
01-03-2012 дата публикации

Fuel property determining apparatus

Номер: US20120047992A1
Автор: Mie Sasai
Принадлежит: Toyota Motor Corp

A fuel property determining apparatus is provided that can reduce power consumption in energization of a fuel property sensor by efficiently determining a fuel property as determined by activating the fuel property sensor. Upon starting an internal combustion engine, it is determined whether or not determination is made of the fuel property in a preceding trip. When the fuel property is determined in the preceding trip, a switch is turned ON to activate the fuel property sensor after waiting for a short period of time after the start of the internal combustion engine. When the fuel property is not determined in the preceding trip, the switch is turned ON to activate the fuel property sensor immediately after the start of the internal combustion engine.

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Номер записи: 18
01-03-2012 дата публикации

Controller for and method of controlling internal combustion engine

Номер: US20120053819A1
Автор: Hiromichi Yasuda, Yusuke Suzuki
Принадлежит: Toyota Motor Corp

Heat generation amount PV κ (θ) is calculated with the use of cylinder pressure P(θ), detected by a cylinder pressure sensor, cylinder, volume V(θ), and specific heat ratio κ (steps 100 to 102 ). A crank angle θ fix , at which the value of PV κ (θ) peaks, is determined as a start crank angle, at which an adiabatic process after combustion starts (step 104 ). A correction coefficient K fix is calculated based on the variation of the value of PV κ (θ) after θ fix (step 106 ). An actual heat generation amount PV κ (θ) is calculated with the use of the correction coefficient K fix (step 110 ). A cooling loss coefficient K cool that determines a correlation between the cooling loss and crank angles may be calculated based on a water temperature and an engine speed and the actual heat generation amount PV κ fix (θ) may be made to reflect the cooling loss coefficient K cool .

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Номер записи: 19
08-03-2012 дата публикации

Hysteresis-type electronic controlling device for fuel injectors and associated method

Номер: US20120055449A1
Автор: Gianluca Botto, Marcello Chiaberge, Massimo Lucano, Mirko Degiuseppe
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A hysteresis-type electronic controlling device is provided for fuel injectors that includes, but is not limited to a power driving unit for driving the fuel injectors with an electric signal, a control stage connected to the power driving unit and a sensing stage fed by the power driving unit and feeding the control stage, the device has a feedback frequency control stage for measuring a waveform period of the signal feeding the fuel injectors; the feedback frequency control stage is fed by the control stage with an electric signal. A fuel injector control method is also provided that includes, but is not limited to driving fuel injectors with an electric signal coming from a power driving unit fed by a control stage , sensing the signal with a sensing stage, and measuring a waveform period of the signal through the feedback frequency control stage.

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Номер записи: 20
15-03-2012 дата публикации

Method and circuit for processing a signal supplied by a piezoelectric sensor, and pressure-measuring device for piston engine

Номер: US20120060595A1
Автор: Alain Ramond, Marcel Guwang
Принадлежит: Hidria Aet Druzba za Proizvodnjo Vzignih Sistemov in Elektronike doo

A method and a circuit for processing a signal supplied by a piezoelectric sensor ( 10 ) indicating the cylinder pressure of a piston engine such as a heat engine. Undesirable variations in the value of the signal supplied by the sensor and corresponding to plateaux in the pressure are compensated by a closed-loop servo control which is suitable for setting an output signal to a predetermined constant reference value, independently of undesirable variations in the signal from the sensor ( 10 ). The value of the output signal is sampled, and at each sampling moment, if the absolute value of the variation in the output signal is less than a comparison value, the servo control is kept active. A circuit for processing and a pressure-measuring device including a circuit of this kind is also described.

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Номер записи: 21
29-03-2012 дата публикации

Variable flow fuel transfer pump system and method

Номер: US20120073545A1
Автор: David P. Genter, Edward N. LINEN, Gregory S. FRANKS, James L. Walls, Joseph A. WORTHINGTON, Michael F. MATTERN, Norman C. Blizard, Thomas O. Hahn
Принадлежит: Cummins Intellectual Property Inc

A fuel supply system and method of controlling fuel flow through a supply system is provided including a variable flow, i.e. speed, electric fuel transfer pump and a control system adapted to variably control the transfer pump based on fuel demand of the engine. The system provides improved transient response by providing the transfer pump with a feed forward speed/flow command based on engine fueling demand determined based on engine operating conditions. The transfer pump is controlled based on fuel demand not necessarily achieved yet by the high pressure pump and injectors. Therefore, this system controls the EFTP substantially simultaneously with controlling the high pressure pump and injectors to optimize fuel flow through the entire system ensuring the minimum required fuel flow is passing through the second the fuel filtration system, hence maximizing steady state fuel filtration efficiency, and minimizing surge effects on filtration efficiency.

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Номер записи: 22
29-03-2012 дата публикации

Electrically activated carburettor

Номер: US20120074600A1
Автор: Christian Kellermann
Принадлежит: Makita Corp

In order to create an electrically activated carburettor for petrol engines with an air funnel for sucking in fuel from a fuel line leading into the air funnel which is connected to a fuel chamber and between fuel chamber and orifice in the air funnel a fuel jet for adjusting a fuel quantity that can be sucked in from the fuel chamber because of vacuum in the air funnel that can be flexibly adapted as carburettor more preferably for power implements, which overcomes the abovementioned disadvantages of the prior art and has a simple, sturdy construction which allows constant long-term behaviour, it is proposed that in series connection with the fuel jet at least two Tesla diodes are provided, between which a pumping chamber with a pumping unit is located.

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Номер записи: 23
12-04-2012 дата публикации

DEGRADATION DETECTION SYSTEM FOR NOx SENSOR, AND DEGRADATION DETECTION METHOD THEREFOR

Номер: US20120085143A1
Автор: Kenji Sakurai, Toru Kidokoro
Принадлежит: Toyota Motor Corp

A NO X sensor degradation detection system includes: a three-way catalyst disposed in an exhaust passageway of an internal combustion engine; a selective reduction catalyst disposed in the exhaust passageway downstream of the three-way catalyst; a NO X sensor disposed in the exhaust passageway downstream of the selective reduction catalyst; and a controller configured to execute a rich-shift process that is a process for causing air/fuel ratio of exhaust gas that flows into the three-way catalyst to become rich, and to determine that the NO X sensor has degraded on a condition that a measurement value from the NO X sensor does not reach nor exceed a threshold value within a prescribed time that follows start of the rich-shift process. A degradation detection method for use in the system is also provided.

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Номер записи: 24
12-04-2012 дата публикации

Use of pressurized fuels in an internal combustion engine

Номер: US20120085314A1
Автор: James M. Cleeves
Принадлежит: Pinnacle Engines Inc

An amount of inlet air can be delivered to a combustion volume of an internal combustion engine via an air inlet port, and delivery of an amount of a fuel from a compressed fuel reservoir to the combustion volume can be controlled via a pressurized fuel inlet port positioned to the deliver the amount of the fuel directly into the combustion volume separately from the air inlet port. The amount of the fuel can be controlled relative to the amount of the inlet air to create an air-fuel mixture within the combustion volume having a target air/fuel ratio. In other aspects, a vehicle chassis can be designed to incorporate a compressed fuel reservoir as a structural part of the chassis. Methods, system, and articles of manufacture relating to these features are described.

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Номер записи: 25
19-04-2012 дата публикации

Fail-safe controller for direct injection engine

Номер: US20120095669A1
Автор: Hiroshi Katsurahara
Принадлежит: Denso Corp

A fuel pressure varies according to whether a fuel pressure sensor and a high-pressure pump have a malfunction or not. In view of this, a first threshold Perr 1 is defined for determining whether the fuel pressure sensor has a malfunction and a second threshold Perr 2 is defined for determining whether the high-pressure pump has a malfunction. The second threshold Perr 2 is greater than the first threshold Perr 1. By comparing a detection value of the fuel pressure sensor with the first and the second threshold, a malfunction in the fuel pressure sensor and a malfunction in the high-pressure pump are distinguished from each other. A first fail-safe control or a second fail-safe control is executed according to a portion having a malfunction.

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Номер записи: 26
26-04-2012 дата публикации

System and method for diagnosing faults in vacuum pumps of fuel systems and for diagnosing leaks in fuel systems

Номер: US20120097252A1
Автор: Kurt D. Mc Lain, William R. Cadman
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A control system includes a switching valve control module, a pressure determination module, and a fuel system diagnostic module. The switching valve control module actuates a switching valve in a fuel system of a vehicle between a first position and a second position, the first position venting a suction side of a vacuum pump in the fuel system to an atmosphere, the second position sealing the suction side of the vacuum pump from the atmosphere. The pressure determination module determines a first pressure on the suction side of the vacuum pump when the switching valve is in the first position, and determines a second pressure on the suction side of the vacuum pump when the switching valve is in the second position. The fuel system diagnostic module selectively diagnoses a fault in the vacuum pump based on the first pressure and the second pressure.

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Номер записи: 27
26-04-2012 дата публикации

Plant controller

Номер: US20120101641A1
Автор: Atsuhiro Miyauchi, Kenichi Maeda, Michinori TANI, Seiji Watanabe
Принадлежит: Honda Motor Co Ltd

A plant controller includes a feedback controller configured to calculate a control input provided to a plant so that a control output of the plant matches a target value. The feedback controller includes a controller transfer function that is a transfer function of the feedback controller. The controller transfer function is expressed by a product of an inverse transfer function of a transfer function of a control target model obtained by modeling the plant and a disturbance sensitivity correlation function defined using a sensitivity function. The sensitivity function indicates sensitivity of a disturbance to be applied to the plant with respect to the control output. The sensitivity function is defined by using a response characteristic parameter that indicates a response characteristic of the plant.

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Номер записи: 28
03-05-2012 дата публикации

Egr controller for internal combustion engine

Номер: US20120109493A1
Автор: Hiroyuki TAKEZOE
Принадлежит: Denso Corp

By means of an air model, an estimated quantity of an exhaust gas flowing into a cylinder and a target quantity of the exhaust gas are computed. A deviation between the estimated quantity and the target quantity is multiplied by a feedback gain to obtain a feedback correction quantity. A reference opening degree of an EGR valve is defined according to an engine driving condition and the feedback correction quantity is added to the reference opening degree to obtain a command opening degree of the EGR valve. According to the engine driving condition and the deviation between the estimated quantity and the target quantity, a feedback gain is established so that control accuracy and control stability of a feedback control can be ensured.

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Номер записи: 29
10-05-2012 дата публикации

Deterioration determination apparatus for airflow meter and deterioration determination method

Номер: US20120111100A1
Автор: Hidehito TSUJII, Kiyohisa Inoue
Принадлежит: Denso Corp

When a deterioration determination apparatus determines a degree of deterioration in characteristics of an airflow meter, a driving condition of an engine is maintained at a specified condition in which intake air flow rate is greater than a specified value. A measurement error of the airflow meter is computed based on an intake air flow rate measured with the airflow meter. The degree of deterioration due to stain is determined based on the measurement error.

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Номер записи: 30
10-05-2012 дата публикации

Inter-cylinder air-fuel ratio imbalance judgment device for multi-cylinder internal combustion engine

Номер: US20120116651A1
Автор: Hiroshi Miyamoto, Hiroshi Sawada, Tatsuya Tsuji, Toru Kidokoro, Yasushi Iwazaki
Принадлежит: Toyota Motor Corp

When the intake air amount is smaller than the specific intake air amount, the unit air-fuel ratio change amount calculated during the engine operation is corrected such that the unit air-fuel ratio change amount increases in the condition that the base unit air-fuel ratio change amount is an upper limit and when the intake air amount is greater than the specific intake air amount, the unit air-fuel ratio change amount calculated during the engine operation is corrected such that the unit air-fuel ratio change amount decreases in the condition that the base unit air-fuel ratio change amount is a lower limit. When the corrected unit air-fuel ratio change amount is greater than the judgment value, it is judged that the inter-cylinder air-fuel ratio imbalance condition occurs.

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Номер записи: 31
17-05-2012 дата публикации

Starting Device for Engines

Номер: US20120119497A1
Автор: Masami Niimi, Mitsuhiro Murata
Принадлежит: Denso Corp

An electromagnetic switch unit comprises a solenoid device that pushes out a pinion gear to a ring gear side of an engine, and an electromagnetic switch that opens and closes a main point of contact of a motor circuit. The solenoid device and the electromagnetic switch are arranged in series in an axial direction, while a magnetic plate that forms a part of magnetic circuit between a first coil used for the solenoid device and a second coil used for the electromagnetic switch is shared by the solenoid device and the electromagnetic switch.

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Номер записи: 32
21-06-2012 дата публикации

Method for real-time modeling of an n-dimensional surface

Номер: US20120158374A1
Автор: Jeffrey M. Pfeiffer, Martin Müller
Принадлежит: Delphi Technologies Inc

A method for determining an estimate of a response characteristic that depends on a number of input factors includes developing a mathematical model of the response as a function of the input factors based on a statistical fit of a plurality of measured data points. The method also includes mapping the value of the response characteristic and the input factors at a plurality of conditions. The method combines the mapped data with the mathematical model to produce an estimate of the response characteristic that is more accurate over a range of conditions than either the mapped data or the model taken individually.

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Номер записи: 33
28-06-2012 дата публикации

Engine Control System Implementing Lean Burn 6-Stroke Cycle

Номер: US20120166066A1
Автор: Scott B. Fiveland, William H. Lane
Принадлежит: Caterpillar Inc

A control system ( 12 ) for an engine ( 10 ) having a combustion chamber ( 22 ) is disclosed. The control system may have a fuel injector ( 40 ) configured to selectively inject fuel into the combustion chamber, and a controller ( 54 ) in communication with the fuel injector. The controller may be configured to activate the fuel injector during a first compression stroke to initiate fuel injection in an amount and at a timing that results in a stratified lean air/fuel mixture within the combustion chamber during a first combustion event of a six- stroke cycle. The controller may also be configured to activate the fuel injector during a first power stroke to initiate fuel injection in an amount and at a timing that results in a homogenous lean air/fuel mixture within the combustion chamber during a second combustion event of the same six-stroke cycle.

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Номер записи: 34
05-07-2012 дата публикации

Engine Emissions Control System Green Engine Development

Номер: US20120167849A1
Автор: Michael E. Edmonds, Richard H. Hutchins
Принадлежит: Individual

High Temperature application Linear Actuator with control system to regulate emissions in an internal combustion engine through variable valve opening and valve duration.

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Номер записи: 35
26-07-2012 дата публикации

Injection fuel and load balancing control system

Номер: US20120191325A1
Автор: Chol-bum M. Kweon, Frederic Anton Matekunas, Ibrahim Haskara, Oguz H. Dagci, Yue-Yun Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for correcting main fuel injection quantities in an internal combustion engine in a plurality of cylinders of the engine includes monitoring a desired fuel injection quantity for the plurality of cylinders, monitoring an in-cylinder pressure for each of the cylinders, determining a burnt fuel mass resulting from a main fuel injection for each of the cylinders based upon the in-cylinder pressures, determining a fuel injection quantity correction for each of the cylinders based upon the burnt fuel masses, and controlling fuel injections into the plurality of cylinders based upon the desired fuel injection quantity and the fuel injection quantity correction for each of the cylinders.

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Номер записи: 36
02-08-2012 дата публикации

Engine control apparatus

Номер: US20120197509A1
Автор: Shinji Watanabe
Принадлежит: Mitsubishi Electric Corp

An engine control apparatus includes an ISS control unit provided with ISS determination means for inputting at least an engine cooling water temperature, vehicle speed, and brake information, and target opening setting means for setting a target opening in an idle stop/start control period; and a throttle control unit provided with proportional gain correction coefficient operation means for correcting a proportional gain to a value that is larger than a proportional gain outside the idle stop/start control period, throttle opening feedback control means for performing a throttle opening feedback control operation based on an opening deviation between a target opening and an actual opening, and PWM driving means for outputting a voltage that is in proportion to the operation amount to a motor.

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Номер записи: 37
02-08-2012 дата публикации

System for diagnosing error conditions of a gas flow control system for diesel engines

Номер: US20120197550A1
Автор: Andreas Sidorow, Christopher Eck, Francesco Cianflone, Gerhard Landsmann, Rolf Isermann, Ulrich Konigorski
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A combustion engine evaluation unit is provided that includes, but is not limited to a microcontroller receiving measurement signals from a gas flow control system and outputting a state signal of the gas flow control system. The microcontroller includes, but is not limited to input ports for receiving as first set of measurement signals. Furthermore, the microcontroller includes, but not limited to input ports for receiving as a second set of measurement signals. The microcontroller is configured to calculate a first set of predicted values with a gas flow model based on the first set of measurement signals and calculate a second set of predicted values with a nominal model based on the second set of measurement signals. The microcontroller is also configured to generate the state signal based on a comparison of the first set of predicted values with the second set of predicted values.

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Номер записи: 38
09-08-2012 дата публикации

Fuel injector interface and diagnostics

Номер: US20120203442A1
Автор: Ross Dykstra Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method comprising receiving a fuel injection signal from a first driver circuit via a control line, feeding the fuel injection signal to a second fuel injector driver circuit, sending a control signal output from the second fuel injector driver circuit to a fuel injector, monitoring the fuel injector for degradation based on operation according to the control signal, and in response to degradation of the fuel injector, changing a state of the control line.

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Номер записи: 39
09-08-2012 дата публикации

System and method for measuring injection processes in a combustion engine

Номер: US20120203447A1
Автор: Heribert Kammerstetter
Принадлежит: AVL List GmbH

A system for measuring an injection process in a combustion engine includes a tank configured to hold a fuel. A storage container is configured to hold a compressed fuel. At least one injection valve is arranged at the storage container. A fuel line in which a fuel conveying pump and a high-pressure fuel pump are arranged. The fuel conveying pump and the high-pressure fuel pump are configured to convey the fuel into the storage container. A first pressure sensor is configured to measure a pressure in the storage container. A detection device is configured to detect control data of the at least one injection valve. A measuring device is arranged in the fuel line. The measuring device is configured to measure a temporally resolved volumetric or gravimetric flow process. A processor is connected to the measuring device and to the first pressure sensor via a data transmission line.

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Номер записи: 40
16-08-2012 дата публикации

Dual Fuel Common Rail System And Engine Using Same

Номер: US20120204835A1
Автор: Hoisan Kim, Mark F. Sommars
Принадлежит: Caterpillar Inc

A dual fuel system for an engine includes a plurality of fuel injectors that each include an injector body with a tip component defining a plurality of gas nozzle outlets and a plurality of liquid nozzle outlets positioned for direct injection into one of the engine cylinders. Each of the fuel injectors is fluidly connected to a gaseous fuel common rail through a quill and an outer passage defined between an inner tube and an outer tube. Each of the fuel injectors is fluidly connected to a liquid fuel common rail through the quill and an inner passage defined by the inner tube. Each combination of an inner tube and outer tube extend into the engine housing between the quill and one of the fuel injectors. Each of the inner tubes extends through one of the outer tubes and is compressed between a conical seat on the quill and a conical seat on one of the fuel injectors.

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Номер записи: 41
16-08-2012 дата публикации

Variable valve lift mechanism fault detection systems and methods

Номер: US20120209494A1
Автор: Julian R. Verdejo, Kenneth J. Buslepp, Nicholas John Kalweit
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system for a vehicle includes a filtering module, an indicated mean effective pressure (IMEP) determination module, and a stuck mechanism indicator module. The filtering module generates engine speeds based on positions of teeth of a toothed wheel that rotates with a crankshaft and based on a crankshaft position signal generated by a crankshaft position sensor. The IMEP determination module determines an IMEP for a combustion cycle of a cylinder of an engine based on squares of first and second ones of the engine speeds during the combustion cycle. The stuck mechanism indicator module selectively diagnoses a fault in a variable valve lift (VVL) mechanism of the cylinder based on the IMEP.

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Номер записи: 42
23-08-2012 дата публикации

Method for the control and regulation of an internal combustion engine

Номер: US20120215424A1
Автор: Armin Dolker
Принадлежит: MTU Friedrichshafen GmbH

Disclosed is a method for the control and regulation of an internal combustion engine ( 1 ), comprising an independent common rail system on the A-side and an independent common rail system on the B-side. During normal operation, the rail pressure (pCR(A), pCR(B)) is controlled in each common rail system via a low pressure-side suction throttle ( 4 A, 4 B) as the first pressure-adjusting element in a rail pressure control loop and, at the same time, the rail pressure (pCR(A), pCR(B)) is subjected to a rail pressure disturbance variable via a high pressure-side pressure control valve ( 11 A, 11 B) as a second pressure-adjusting element, by means of which a pressure control valve volume flow is redirected via the high pressure-side pressure control valve ( 11 A, 11 B) from the rail ( 6 A, 6 B) into a fuel tank ( 2 ). The method is characterized in that a first emergency operation is implemented for the common rail system in question when a defective rail pressure sensor ( 8 A, 8 B) and a non-defective pressure control valve ( 11 A, 11 B) have been detected in said common rail system, while a second emergency operation is implemented for the common rail system in question when a defective rail pressure sensor ( 8 A, 8 B) and simultaneously a defective pressure control valve ( 11 A, 11 B) have been detected in said common rail system, and wherein the normal operation is implemented for the other, non-defective common rail system.

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Номер записи: 43
30-08-2012 дата публикации

Method for the open-loop control and closed-loop control of an internal combustion engine

Номер: US20120221226A1
Автор: Armin Dolker
Принадлежит: MTU Friedrichshafen GmbH

The invention relates to a method for the open-loop control and the closed-loop control of an internal combustion engine ( 1 ), the rail pressure (pCR) being controlled in a closed loop mode in the normal operating state and an emergency operation mode being activated once a defective rail pressure sensor ( 9 ) is detected, in which emergency operation the rail pressure (pCR) is controlled in an open loop mode. The invention is characterized in that in the emergency operation mode, the rail pressure (pCR) is gradually increased until a passive pressure relief valve ( 11 ) is activated which redirects fuel from the rail ( 6 ) to the fuel tank ( 2 ) when it is open.

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Номер записи: 44
06-09-2012 дата публикации

Catalyst warming-up controller for internal combustion engine

Номер: US20120222407A1
Автор: Hiroyuki Inuzuka, Makoto Miwa
Принадлежит: Denso Corp

A catalyst warming-up controller executes a catalyst warming-up control in which an ignition timing is retarded to warm-up a catalyst and performs a compression-stroke injection in which a fuel is injected into a cylinder in a compression stroke. While the catalyst warming-up control is executed, a variable valve timing controller controls a valve timing of an intake valve and/or an exhaust valve to establish a negative-valve-overlap period in which both of the exhaust valve and the intake valve are closed. A fuel injector injects the fuel into a cylinder in this period and a quantity of the compression-stroke injection is decreasingly corrected according to the injection quantity in the above period.

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Номер записи: 45
13-09-2012 дата публикации

Apparatus for sensing cam phaser position

Номер: US20120227696A1
Автор: Christopher Gallmeyer
Принадлежит: Caterpillar Inc

A first target wheel has an opening and rotates about an axis of rotation to move the opening along a generally circular path. A second target wheel adjacent the first target wheel has a second projection projecting into the opening of the first target wheel with the second projection being movable along the generally circular path. A single sensor is positioned adjacent the generally circular path and senses movement of the opening and the second projection past the sensor. An electronic controller may be used to process signals from the sensor to determine the relative angular difference between the first target wheel and the second target wheel.

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Номер записи: 46
27-09-2012 дата публикации

Air-fuel ratio control apparatus for an internal combustion engine

Номер: US20120245823A1
Автор: Mamoru Yoshioka
Принадлежит: Toyota Motor Corp

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.

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Номер записи: 47
04-10-2012 дата публикации

Engine combustion control at low loads via fuel reactivity stratification

Номер: US20120247421A1
Автор: Derek A. Splitter, Reed M. Hanson, Rolf Deneys Reitz, Sage L. Kokjohn
Принадлежит: Individual

A compression ignition (diesel) engine uses two or more fuel charges during a combustion cycle, with the fuel charges having two or more reactivities (e.g., different cetane numbers), in order to control the timing and duration of combustion. By appropriately choosing the reactivities of the charges, their relative amounts, and their timing, combustion can be tailored to achieve optimal power output (and thus fuel efficiency), at controlled temperatures (and thus controlled NOx), and with controlled equivalence ratios (and thus controlled soot). At low load and no load (idling) conditions, the aforementioned results are attained by restricting airflow to the combustion chamber during the intake stroke (as by throttling the incoming air at or prior to the combustion chamber's intake port) so that the cylinder air pressure is below ambient pressure at the start of the compression stroke.

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Номер записи: 48
04-10-2012 дата публикации

Air fuel ratio controlling apparatus

Номер: US20120253643A1
Автор: Emi Shida, Masanori Nakamura, Shiro Kokubu, Yukihiro Asada
Принадлежит: Honda Motor Co Ltd

An air feed ratio controlling apparatus can include a predictor for predicting an air fuel ratio on the downstream side of a catalyst calculates a predicted air fuel ratio at least based on an actual air fuel ratio from an oxygen sensor and a history of a first correction coefficient. The air fuel ratio controlling apparatus can also include an adaptive model corrector which determines the deviation between the actual air fuel ratio and the predicted air fuel ratio as a prediction error ERPRE, and superposes a second correction coefficient on the first correction coefficient so that the prediction error may be reduced to zero.

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Номер записи: 49
04-10-2012 дата публикации

Method to minimize common rail pressure irregularities due to aliasing effect on battery voltage monitoring

Номер: US20120253720A1
Автор: Maura DINTINO, Stefano NIEDDU
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method is provided to minimize common rail pressure irregularities due to aliasing effect on battery voltage monitoring in a digital electronic control unit that is capable of PWM regulations of a metering valve unit in a diesel common-rail power-train system. At least an engine rotary speed signal is detected and at least a battery voltage signal is monitored, the method includes, but is not limited to calculating the aliasing frequency on said battery voltage signal as a function of said engine rotary speed signal, filtering the battery voltage signal before it is input to said controller module with at least one digital non-linear notch filter, the at least one digital non-linear notch filter substantially centered on the first harmonic of the aliasing frequency, and input the filtered battery voltage signal, at least with the engine rotary speed signal, to the controller module for PWM regulating the metering valve unit.

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Номер записи: 50
18-10-2012 дата публикации

Method for the open-loop control and closed-loop control of an internal combustion engine

Номер: US20120265424A1
Автор: Armin Dolker
Принадлежит: MTU Friedrichshafen GmbH

The invention relates to a method for the open-loop control and the closed-loop control of an internal combustion engine ( 1 ), the rail pressure (pCR) being controlled in the normal operating state in a closed loop control mode via an intake throttle ( 4 ) on the lower pressure side as the first pressure control member in a rail pressure control loop and at the same time a rail pressure disturbance variable being applied to the rail pressure (pCR) via a pressure control valve ( 12 ) on the high pressure side as the second pressure control member. For this purpose, a pressure control valve volume flow (VDRV) is redirected from the rail ( 6 ) to a fuel tank ( 2 ) via the pressure control valve ( 12 ) on the high pressure side, and an emergency operation mode is activated once a defective rail pressure sensor ( 9 ) is detected, in which emergency operation the pressure control valve ( 12 ) on the high pressure side and the intake throttle ( 4 ) on the low pressure side are actuated depending on the same set point value.

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Номер записи: 51
25-10-2012 дата публикации

Device and method for diagnosing an exhaust gas sensor

Номер: US20120266647A1
Автор: Ekkehart-Peter Wagner, Frank Friedhof, Stefan Barnikow
Принадлежит: Continental Automotive GmbH

A device for diagnosing an exhaust gas sensor, in particular a linear oxygen probe, for an internal combustion engine. A diagnostic unit is configured to control a first and a second current source in a coordinated manner in order to generate a first and a second current. Each of the currents has a predefined polarity sign, and is designed to determine the first and/or second and/or third voltages applied at a first and/or second and/or third terminal when first and second currents flow and put the amounts of the voltages in relation to the coordinated currents such that line interruptions and/or short circuits can be detected at the first and/or second and/or third terminal.

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Номер записи: 52
25-10-2012 дата публикации

Synchronous full-bridge oscillator

Номер: US20120267359A1
Автор: Perry Czimmek
Принадлежит: Continental Automotive Systems US Inc

An electronic high frequency induction heater driver, for a variable spray fuel injection system, uses a zero-voltage switching oscillator that utilizes a full H-bridge topology wherein the semiconductor switches are synchronized within the bridge for function. The induction heater driver, upon receipt of a turn-on signal, multiplies a supply voltage through a self-oscillating series resonance, wherein one component of the tank resonator circuit comprises an induction heater coil magnetically coupled to an appropriate loss component so that fuel inside a fuel component is heated to a desired temperature.

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Номер записи: 53
08-11-2012 дата публикации

Safety improvement method of idle stop and go function

Номер: US20120280806A1
Автор: Chongah Gwon, Jiyong Yu, Junghwan Bang
Принадлежит: Hyundai Motor Co

A safety improvement method of an Idle Stop and Go (ISG) function may include: recognizing initial conditions that senses whether an engine is restarted, when the engine is restarted by the ISG, and whether a driver operates a vehicle, and determines whether to warn the driver; warning the driver that makes the driver recognize that the engine is restarted if it is determined to warn the driver in recognizing initial conditions; and stopping the warning that stops warning the driver after warning the drive has been executed. Warning the drive may be achieved by an alarm generated from a buzzer for a predetermined time and a visual screen that is provided for the driver.

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Номер записи: 54
08-11-2012 дата публикации

Method for operating a fuel injection system of an internal combustion engine

Номер: US20120283933A1
Автор: Markus Strasser
Принадлежит: ROBERT BOSCH GMBH

A method for operating a fuel injection system of an internal combustion engine is described in which pressurized fuel is provided in a pressure storage device and a fuel pressure prevailing in pressure storage device is regulated with the aid of a pressure regulation, during a first measuring interval at least one fuel withdrawal from the pressure storage device taking place, and during a second measuring interval no fuel withdrawal from the pressure storage device of this type taking place, and during the first and the second measuring intervals a performance quantity of the pressure regulation being ascertained in each case, and the fuel quantity withdrawn during the first measuring interval being ascertained for the at least one withdrawal from a difference of the ascertained performance quantities of the pressure regulation.

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Номер записи: 55
08-11-2012 дата публикации

Method and System for Engine Speed Control

Номер: US20120283936A1
Автор: Payam Naghshtabrizi, Sam Hashemi
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for accurately determining cylinder fueling errors during an automatic engine restart. Fueling errors may be learned during a preceding engine restart on a cylinder-specific and combustion event-specific basis. The learned fueling errors may then be applied during a subsequent engine restart on the same cylinder-specific and combustion event-specific basis to better anticipate and compensate for engine cranking air-to-fuel ratio deviations.

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Номер записи: 56
15-11-2012 дата публикации

Internal Combustion Engine Control Device

Номер: US20120290193A1
Автор: Kunihiko Suzuki, Seiji Asano
Принадлежит: HITACHI LTD

An internal combustion engine control device is provided which can accurately estimate intake pipe temperature behavior during transient time even in an internal combustion engine embedded with a variable valve or a turbocharger. The internal combustion engine control device estimates transient behavior of the intake pipe temperature, on the basis of a flow rate (dGafs/dt) of gas flowing into the intake pipe, a flow rate (dGcyl/dt) of gas flowing from the intake pipe, an intake pipe pressure Pin, and a temporal changing rate (dPin/dt) of the intake pipe pressure. The device performs knocking control during transient time, on the basis of the estimated transient behavior of the intake pipe temperature.

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Номер записи: 57
29-11-2012 дата публикации

Robust estimation of biodiesel blend ratio for alternative fuel combustion

Номер: US20120303245A1
Автор: Ibrahim Haskara, Yue-Yun Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method to control an internal combustion engine includes operating the engine with a fuel blend of a first fuel and a second fuel, monitoring a value of a first combustion parameter during engine operation, monitoring a first value for a second combustion parameter during engine operation, determining a second value for the second combustion parameter in accordance with a predetermined correspondence among the first combustion parameter, the second combustion parameter, and a predetermined fuel blend of the first fuel and the second fuel, determining the fuel blend based upon a difference between the first and second values for the second combustion parameter, and controlling the engine based upon the fuel blend.

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Номер записи: 58
06-12-2012 дата публикации

Systems and methods for an engine

Номер: US20120304887A1
Автор: Manoj Gokhale
Принадлежит: General Electric Co

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.

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Номер записи: 59
13-12-2012 дата публикации

Fuel management system for variable ethanol octane enhancement of gasoline engines

Номер: US20120312284A1
Автор: Daniel R. Cohn, John B. Heywood, Leslie Bromberg
Принадлежит: Massachusetts Institute of Technology

Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine.

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Номер записи: 60
13-12-2012 дата публикации

Control system implementing polarity-switching waveforms

Номер: US20120316755A1
Автор: Daniel R. Ibrahim
Принадлежит: Caterpillar Inc

A control system is disclosed. The control system may have an armature, windings associated with the armature, and at least one power supply. The control system may also have a controller in communication with the windings and the at least one power supply. The controller may be configured to direct a first current waveform having a first polarity into the windings during a first period of time to move the armature in a desired manner, and to direct a second current waveform having a second polarity into the windings during a second period of time to move the armature in the desired manner.

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Номер записи: 61
20-12-2012 дата публикации

Control system and method for coordinating throttle and boost

Номер: US20120318235A1
Автор: James L. Worthing, Jeffrey M. Kaiser, Timothy L. Gibbs, Zhong Li
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An engine control system according to the principles of the present disclosure includes a manifold air pressure (MAP) determination module, a boost control module, and a throttle control module. The MAP determination module determines a desired MAP based on a driver torque request. The boost control module controls a boost device based on the desired MAP and a basic boost pressure. The boost device is actuated using boost pressure and the boost pressure is insufficient to actuate the boost device when the boost pressure is less than the basic boost pressure. The throttle control module controls a throttle valve based on the desired MAP and the basic boost pressure.

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Номер записи: 62
27-12-2012 дата публикации

Fuel injection controller and internal combustion engine

Номер: US20120330537A1
Автор: Takeshi Hashizume
Принадлежит: Toyota Motor Corp

An ECU of a fuel injection controller acquires information on a load of an internal combustion engine including a fuel injection valve. Based on the load information, a switch is made between low-load-condition control, in which a main injection is performed at a timing that avoids a spray injected by a pilot injection that drifts due to a swirl effect, and high-load condition control, in which the main injection is performed at a timing that interferes with (at least partially overlaps) a spray injected by the pilot injection that drifts due to a swirl effect. In the low-load-condition control, the spray injected by a pilot injection is diffused before the occurrence of ignition to reduce smoke. In the high-load condition control, the spray injected by the main injection is caused to interfere with the spray injected by the pilot injection that contains OH radicals, to reduce smoke.

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Номер записи: 63
10-01-2013 дата публикации

Method and system for controlling fuel usage

Номер: US20130008410A1
Автор: Gopichandra Surnilla, John Nelson, Thomas G. Leone
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for improving fluid usage while addressing knock by adjusting the use of spark retard and direct injection of a fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, are coordinated with the direct injection to reduce torque and EGR transients.

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Номер записи: 64
10-01-2013 дата публикации

Method And Control Unit For Operating A Valve

Номер: US20130013170A1
Автор: Achim Hirchenhein, Anh-Tuan Hoang, Bernd Wichert, Haris Hamedovic, Helerson Kemmer, Holger Rapp, Jens Neuberg, Joerg Koenig, Klaus Joos, Ruben Schlueter
Принадлежит: ROBERT BOSCH GMBH

A method for operating a valve, in particular a fuel injector of an internal combustion engine of a motor vehicle, in which an auxiliary variable is obtained as a function of at least one electrical operating variable of an electromagnetic actuator driving a component of the valve, in particular a valve needle, and in which the auxiliary variable is checked for the presence of a predefinable characteristic. A reference variable is ascertained as a function of the auxiliary variable, the auxiliary variable is modified as a function of the reference variable to obtain a modified auxiliary variable, and the modified auxiliary variable is checked for the presence of the predefinable characteristic.

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Номер записи: 65
07-02-2013 дата публикации

Nh3 emissions management in a nox reduction system

Номер: US20130031891A1
Автор: Chetan PONNATHPUR
Принадлежит: Cummins Emission Solutions Inc

A system includes an internal combustion engine producing an exhaust gas, an aftertreatment system receiving the exhaust gas, the aftertreatment system including a particulate filter positioned upstream of an SCR catalyst component, and a urea injector operatively coupled to the aftertreatment system at a position upstream of the SCR catalyst component. The system further includes a controller that interprets an exhaust temperature value, an ambient temperature value, and a urea injection amount. The controller determines a urea deposit amount in response to the exhaust temperature value, the ambient temperature value, and the urea injection amount, and initiates a desoot regeneration event in response to the urea deposit amount. The desoot regeneration event includes operating the engine at a urea decomposition exhaust temperature.

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Номер записи: 66
28-02-2013 дата публикации

Air-fuel ratio control system for internal combustion engine

Номер: US20130047969A1
Автор: Atsuhiro Miyauchi, Michinori TANI, Seiji Watanabe, Takashi Yanagiura, Takeshi Aoki, Tooru Sekiguchi
Принадлежит: Honda Motor Co Ltd

An air-fuel ratio control system for an internal combustion engine has a perturbation control which oscillates the air-fuel ratio with a first frequency. A first difference signal is generated indicative of a difference between a present value and a first past value from an air-fuel ratio sensor detected at a timing of a first specific period which is set to reduce a specific frequency component corresponding to a specific frequency different from the first frequency. A first frequency component is extracted. A second difference signal is generated indicative of a difference between a present value and a second past value detected at a timing of a second specific period which is set to reduce the first frequency component. The specific frequency component is extracted. A failure of the control system is determined by a relationship between intensities of the first frequency component and the specific frequency component.

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Номер записи: 67
28-02-2013 дата публикации

Stochastic pre-ignition detection systems and methods

Номер: US20130054109A1
Автор: Daniel G. Brennan, David S. Mathews, Julian R. Verdejo, Kenneth J. Buslepp
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system for a vehicle includes a time stamping module, a period determination module, a stochastic pre-ignition (SPI) indication module, and an SPI remediation module. The time stamping module generates first and second timestamps when a crankshaft of an engine is in first and second crankshaft positions during an engine cycle, respectively. The period determination module determines a period between the first and second timestamps. The SPI indication module selectively indicates that an SPI event occurred within a cylinder of the engine based on the period. The SPI remediation module selectively adjusts at least one engine operating parameter in response to the SPI indication module indicating that the SPI event occurred within the cylinder.

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Номер записи: 68
07-03-2013 дата публикации

Imbalance re-synchronization control systems and methods

Номер: US20130060449A1
Автор: Andrew P. Bagnasco, Ian J. Mac Ewen, Scott Jeffrey, Steven Ward Majors
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Fueling to one cylinder of an engine is selectively adjusted based on a correction associated with the cylinder. An instability module increments a counter value when the correction is equal to one of a first predetermined value and a second predetermined value and was previously equal to the other one of the first and second predetermined values. The instability module selectively generates a first indicator based on the counter value. A variance of imbalance values can be determined based on samples of an exhaust gas oxygen signal. Two variances are determined: one variance with adjustment based on the correction, one without adjustment based on the correction. A variance checking module selectively generates a second indicator based on the first and second variances. A re-synchronization module re-synchronizes the imbalance values with the cylinders, respectively, in response to generation of the first indicator and/or the second indicator.

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Номер записи: 69
07-03-2013 дата публикации

Engine control unit, engine control system and engine control method

Номер: US20130060455A1
Автор: Shinji Kawasumi
Принадлежит: Shindengen Electric Manufacturing Co Ltd

An engine control method includes: a step of running the engine in a forward direction by driving a motor that applies a torque to a crank of the engine in the forward direction in a case where the crank angle of the engine does not lie in the first section; a step of removing any load from the motor in a case where the crank angle of the engine lies in the first section; a step of braking the motor in a case where it is determined in the sixth step that the crank angle of the engine lies in the second section; and a step of running the engine in the forward direction by driving the motor in the forward direction in a case where it is determined that there is the request for restart of the engine.

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Номер записи: 70
14-03-2013 дата публикации

Method and system for adjusting port throttles

Номер: US20130066540A1
Автор: Donald J. Lewis, Ralph Wayne Cunningham, Thomas G. Leone
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

An engine system and method for improving engine starting are disclosed. In one example, two engine cylinder port throttles are adjusted differently during engine starting. The system and method may improve engine torque control during an engine start.

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Номер записи: 71
21-03-2013 дата публикации

Systems and methods for diagnosing an engine

Номер: US20130073127A1
Автор: Ajith Kumar, Arijit Banerjee, Paul Flynn, Rupam Mukherjee, Somakumar Ramachandrapanicker
Принадлежит: General Electric Co

Methods and systems are provided for an engine. A condition of the engine may be diagnosed based on a combustion torque profile of the engine estimated using signals from a generator operationally connected to the engine and/or other signals associated with the engine. Different types of degradation may be distinguished based on discerning characteristics within the estimated combustion torque profile data. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.

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Номер записи: 72
21-03-2013 дата публикации

Dynamic estimator for determining operating conditions in an internal combustion engine

Номер: US20130073173A1
Автор: Anna Stefanopoulou, Erik Hellstrom, Jacob Larimore, LI Jiang
Принадлежит: ROBERT BOSCH GMBH

Methods and systems are provided for estimating engine performance information for a combustion cycle of an internal combustion engine. Estimated performance information for a previous combustion cycle is retrieved from memory. The estimated performance information includes an estimated value of at least one engine performance variable. Actuator settings applied to engine actuators are also received. The performance information for the current combustion cycle is then estimated based, at least in part, on the estimated performance information for the previous combustion cycle and the actuator settings applied during the previous combustion cycle. The estimated performance information for the current combustion cycle is then stored to the memory to be used in estimating performance information for a subsequent combustion cycle.

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Номер записи: 73
21-03-2013 дата публикации

System and method for diagnosing an engine

Номер: US20130073174A1
Автор: Bret Dwayne Worden, Matthew Malone, Milan Karunaratne, Paul Lloyd Flynn
Принадлежит: General Electric Co

Methods and systems are provided for an engine including a crankcase. A condition of the engine may be diagnosed based on frequency content of crankcase pressure. Different types of degradation may be distinguished based on a frequency content of multiple frequencies of the crankcase pressure. Thus, a degraded engine component may be identified in a manner that reduces service induced delay.

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Номер записи: 74
28-03-2013 дата публикации

System for controlling an air handling system including an electric pump-assisted exhaust gas recirculation

Номер: US20130080034A1
Автор: Divakar Rajamohan, Indranil Brahma, John M. Mulloy, John N. Chi, Martin T. Books, Sriram S. Popuri, Timothy R. Frazier
Принадлежит: Cummins Inc

A system controlling an air handling system for an internal combustion engine. An EGR valve in-line with an EGR passageway fluidly coupled between exhaust and intake manifolds of the engine is controllable between fully closed open positions to control a flow rate of exhaust gas through the EGR passageway. A control circuit determines a pump enable value as a function of at least one of a target engine speed and a total fueling target, determines a maximum achievable flow rate of recirculated exhaust gas through the EGR passageway with the EGR valve in the fully open position, and activates an electric gas pump to increase the flow rate of exhaust gas through the EGR passageway if the pump enable value exceeds a threshold pump enable value and a target flow rate of recirculated exhaust gas through the EGR passageway is less than the maximum achievable flow rate.

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Номер записи: 75
28-03-2013 дата публикации

Device and method for controlling start of compression self-ignition engine

Номер: US20130080039A1
Автор: Junichi Taga, Takeo Yamauchi, Yoshihisa Nakamoto
Принадлежит: Mazda Motor Corp

A start control device includes a compression self-ignition engine, fuel injectors, a piston stop position detector, a starter motor and a controller for automatically stopping the engine when a predetermined automatic stop condition is satisfied, and thereafter, when a predetermined restart condition is satisfied and a compression-stroke-in-stop cylinder piston stop position is within a reference stop position range set relatively on a bottom dead center side, restarting the engine by injecting the fuel into the compression-stroke-in-stop cylinder while applying the rotational force to the engine using the starter motor. In restarting the engine, when the fuel is injected in the compression-stroke-in-stop cylinder, the controller controls the fuel injector to perform a pre-injection before a main injection and increase a total injection amount of the fuel for the pre-injection as the stop position of the compression-stroke-in-stop cylinder piston is further on a top dead center side.

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Номер записи: 76
04-04-2013 дата публикации

Exhaust gas purification system

Номер: US20130081367A1
Автор: Hitoshi Satou, Takashi Ikeda, Tetsuya Asami
Принадлежит: Isuzu Motors Ltd

A diesel particulate defuser (DPD) for collecting particulate matter (PM) in exhaust gas is connected to an exhaust pipe of a diesel engine, and when the amount of PM in the DPD becomes equal to or greater than a predetermined amount, the exhaust gas temperature of the diesel engine is increased by performing exhaust pipe injection and DPD is automatically regenerated. In such an exhaust gas purification system, an exhaust gas temperature during DPD regeneration in automatic regeneration is detected, a difference between the detected exhaust gas temperature and a target regeneration temperature is determined, and in a case where an exhaust pipe injection amount is PID controlled based on the difference, when a transition is made from the traveling automatic regeneration to the idle automatic regeneration conducted during a stop, an integral control term in the PID control is reset to zero to control the exhaust pipe injection amount.

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Номер записи: 77
04-04-2013 дата публикации

Control apparatus and control method for variable mechanism

Номер: US20130085654A1
Автор: Shunsuke Habara, Shunsuke Yamamoto, Takashi Nakagawa
Принадлежит: Toyota Motor Corp

In a control apparatus and a control method for a variable mechanism, when a predetermined condition is fulfilled, a movable member ( 3 ) is driven until an engagement portion ( 31 ) contacts one restriction member ( 22 ), and the absolute position of the movable member ( 3 ) when it is determined that displacement of the movable member ( 3 ) is stopped is learned, as a reference position. When supply of electric power is stopped, the absolute position of the movable member ( 3 ) is learned as an initial reference position. When electric power is supplied, the movable member ( 3 ) is driven from the initial reference position until the engagement portion ( 31 ) contacts the one restriction member ( 22 ), and a one-side displacement amount is calculated. If the one-side displacement amount is smaller than a one-side distance, it is determined that a foreign substance is caught in an area on a side of a site corresponding to the one restriction member ( 22 ) in a movable range.

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Номер записи: 78
04-04-2013 дата публикации

NOx EMISSION ESTIMATION METHOD AND ARRANGEMENT

Номер: US20130085733A1
Автор: Christian Vartia, Krister Johansson
Принадлежит: Volvo Car Corp

A NO x emission estimation method and arrangement for a diesel engine for estimating the amount of NO x generated in a combustion chamber of the diesel engine. The method comprises the steps of: providing values for speed and load by measuring the engine speed and the fuel injection amount; providing a base NO x value from an engine speed-load resolved reference NO x map; defining and providing emission influencing input parameters by measuring corresponding signal values; calculating a deviation between at least one emission influencing input parameter and a speed-load resolved reference value for the at least one emission influencing input parameter; multiplying the calculated deviation with an individual value from an individual speed-load resolved weight map for the at least one emission influencing input parameter, thereby creating an emission influencing input parameter related correction for the at least one emission influencing input parameter; adding and summarizing the at least one emission influencing input parameter related correction to the base NO x value and thereby obtaining an estimated NO x mass flow value.

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Номер записи: 79
11-04-2013 дата публикации

Method For Reducing The Rate Of Exhaust Heat Loss

Номер: US20130086887A1
Автор: Christopher M. Barber, Jarred M. Crouch, Nathaniel D. Bergland
Принадлежит: Deere and Co

Disclosed is a method for reducing the rate of exhaust heat loss. The method comprises the steps of determining whether an engine is motoring and determining whether a diesel particulate filter needs to be regenerated. Further, the method comprises the step of closing an air throttle to a substantially closed position for reducing the flow of intake gas into the engine if the diesel particulate filter needs to be regenerated and if the engine is motoring. Further yet, the method comprises the step of opening the EGR valve to an at least partially open position for allowing the exhaust gas to recirculate through the engine if the diesel particulate filter needs to be regenerated and if the engine is motoring.

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Номер записи: 80
18-04-2013 дата публикации

Method for reducing the particle emissions of a spark-ignition internal combustion engine with direct injection, and internal combustion engine for carrying out such a method

Номер: US20130092124A1
Автор: Helmut Hans Ruhland, Jan Mehring, Moritz Klaus Springer, Thomas Lorenz
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for reducing the particle emissions of a spark-ignition, direct-injection internal combustion engine is provided. The method comprises operating at least one cylinder superstoichiometrically, responsive to an injector coking level and sufficiently high cylinder temperature, for a duration to increase oxidation of coking residues.

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Номер записи: 81
09-05-2013 дата публикации

Method and system for valve operation control

Номер: US20130116866A1
Автор: Scott James Thompson, William Paul Perkins
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for raising the speed of a hybrid electric vehicle operating in an electric-only mode. During conditions when the vehicle is driven only by an electric motor, vehicle speed may be raised by spinning the engine unfueled using power from a system battery, while adjusting valve operation to reduce engine pumping losses. In this way, vehicle speed may be raised more efficiently and without damaging rotating transmission components.

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Номер записи: 82
16-05-2013 дата публикации

Valve opening and closing control apparatus

Номер: US20130118428A1
Автор: Hiroki Mukaide, Naoto Toma, Shigemitsu Suzuki
Принадлежит: Aisin Seiki Co Ltd

A valve opening and closing time control apparatus includes; a relative rotation angle control unit performs most delayed angle setting control of setting a relative rotation angle between a driving side rotating body and a driven side rotating body to the most delayed angle when performing an automatic stop, and most delayed angle restriction control of maintaining the relative rotation angle in the most delayed angle from a beginning of the automatic start until reaching a set timing when the automatic start-up begins, and releasing a maintenance of the most delayed angle after the setting timing.

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Номер записи: 83
16-05-2013 дата публикации

Methods and systems for engine starting

Номер: US20130124067A1
Автор: Alex O'Connor Gibson, Donald James Lewis, Gopichandra Surnilla, John D. Russell, Joseph N. Ulrey, Ross Pursifull
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for controlling a vehicle system including an engine that is selectively deactivated during engine idle-stop conditions and selectively reactivated during engine restart conditions. One example method comprises, during an engine restart from an idle stop, performing a first combustion event in a cylinder with a piston at an engine crankshaft position that is after a crankshaft position at which said cylinder's exhaust valve opens, and before a crankshaft position at which the cylinder's intake valve closes, during a cycle of said cylinder. In this way, inaccuracies in cylinder aircharge estimation may be reduced, thereby also reducing air-fuel ratio errors and improving the quality and repeatability of engine restarts.

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Номер записи: 84
30-05-2013 дата публикации

Methods for an exhaust fluid sensor

Номер: US20130133309A1
Автор: Bret Alan Zimmerman, John Paul Bogema, Michiel J. Van Nieuwstadt, Timothy L. Jenkins
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Various methods are provided for diagnosing an exhaust fluid sensor disposed in an exhaust fluid passage. By monitoring the sensor during conditions when it is in contact with the exhaust fluid and when it is not in contact with the exhaust fluid, an expected change in the sensor output can be monitored to identify whether the sensor is generating sufficiently accurate readings.

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Номер записи: 85
30-05-2013 дата публикации

Control device for internal combustion engine

Номер: US20130138324A1
Автор: Taku Ibuki
Принадлежит: Toyota Motor Corp

The present invention relates to a control device for an internal combustion engine including: a first control subject 52 and a second control subject 35 D respectively capable of directly controlling a first control amount Regr and a second control amount Pim interacting with each other; a means for setting a target value of the first control amount as a first target control amount and setting a target value of the second control amount as a second target control amount; and a means for controlling the first control amount at the first target control amount and controlling the second control amount at the second target control amount. Further, in the present invention, a first target control amount TRegr is set as the target value of the first control amount capable of controlling the first control amount with a predetermined followability taking account of at least one of a first operation speed Krie, Krde as the operation speed of the first control subject and a degree of influence Ksee of the first control subject on the first control amount and at least one of a second operation speed Kriv, Krdv as the operation speed of the second control subject and a degree of influence Ksev of the second control subject on the first control amount.

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Номер записи: 86
06-06-2013 дата публикации

Method and system for pre-ignition control

Номер: US20130139786A1
Автор: Chris Paul Glugla, Paul Charles Mingo, Robert Sarow Baskins, Sue Kay Wagers
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for addressing pre-ignition that may be induced in response to actions taken to mitigate a cylinder misfire. An amount of engine load limiting applied may be adjusted to reduce the likelihood pre-ignition while also addressing component over-temperature issues. By limiting an engine load while shutting off fuel in a misfiring cylinder, and while combusting a lean air-fuel mixture in the remaining cylinders, pre-ignition induced by the misfire-mitigating lean combustion conditions can be reduced.

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Номер записи: 87
06-06-2013 дата публикации

Method for operating an internal combustion engine

Номер: US20130144508A1
Автор: Ignazio Dentici, Michele BASTIANELLI
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Methods and apparatus for operating an internal combustion engine are provided. The engine has an engine block defining a cylinder accommodating a reciprocating piston coupled to rotate a crankshaft, a fuel injector for injecting fuel inside the cylinder, and a crank position sensor positioned proximal to the crankshaft. A method includes commanding the fuel injector to perform a test fuel injection with a predetermined energizing time and using the crank position sensor to determine a crankshaft acceleration signal during the test fuel injection. The crankshaft acceleration signal is filtered and a value of an amplitude of a fundamental frequency component of the filtered crankshaft acceleration signal is determined. A correction factor of the predetermined energizing time is determined based on a difference between the determined value of the amplitude and a preset value thereof. The correction factor is used to correct an energizing time of subsequent fuel injections.

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Номер записи: 88
13-06-2013 дата публикации

Switch-Mode Synthetic Power Inductor

Номер: US20130146034A1
Автор: Perry Robert Czimmek
Принадлежит: Continental Automotive Systems Inc

A fuel delivery system for a vehicle includes a fuel injector that meters fuel flow and provides for preheating fuel to aid combustion. A control circuit including a synthetic inductor drives a heated element within the fuel flow.

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Номер записи: 89
13-06-2013 дата публикации

Engine torque compensation method based on change in concentration of ethanol for ffv

Номер: US20130151089A1
Автор: Soon Ki Kim
Принадлежит: Hyundai Motor Co, Kia Motors Corp

An engine torque compensation method is based on a change in the concentration of ethanol for a Flexible Fuel Vehicle (FFV). In the method, a concentration of ethanol in fuel that is supplied to an engine is acquired. A driver-required torque based on an opening rate of a throttle valve depending on manipulation of an accelerator by a driver is calculated. A torque correction factor depending on the opening rate of the throttle valve and the concentration of the ethanol is calculated. A final driver-required torque is obtained by multiplying the torque correction factor by the driver-required torque.

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Номер записи: 90
27-06-2013 дата публикации

Crane control apparatus

Номер: US20130161279A1
Автор: Conrad Sagert, Klaus Schneider, Oliver Sawodny, Ulf Schaper
Принадлежит: Liebherr Werk Nenzing GmbH

The present invention relates to a crane control apparatus for a crane where a load is suspended on a crane cable from a cable suspension point of the crane, comprising an observer for estimating at least the position and/or velocity of the load from at least one sensor input of a first sensor by using a physical model of the load suspended on the crane cable, whereby the physical model of the observer uses the load position and/or the load velocity as a state variable.

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Номер записи: 91
27-06-2013 дата публикации

Method and Device For Operating A Cold Start Emission Control Of An Internal Combustion Engine

Номер: US20130166186A1
Автор: Alexandra Fuchsbauer, Guido Porten, Uwe Mueller
Принадлежит: ROBERT BOSCH GMBH

A method for operating a cold start emission control of an internal combustion engine, a combustion chamber pressure in at least one cylinder of the internal combustion engine being initially detected, at least one characteristic variable for a combustion process of the internal combustion engine being determined based on the detected combustion chamber pressure, a setpoint value being established for the characteristic variable, a deviation of the characteristic variable from the setpoint value being determined, and an error entry being generated as a function of the determined deviation.

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Номер записи: 92
18-07-2013 дата публикации

Method and Control Unit for Controlling an Internal Combustion Engine

Номер: US20130180506A1
Автор: Harry Schüle, Markus Stutika
Принадлежит: Continental Automotive GmbH

A method and a control unit are disclosed for controlling a single-cylinder or multiple-cylinder internal combustion engine having at least one fuel injector per cylinder, at least one camshaft for actuating inlet valves and/or outlet valves, and having a control unit which controls the fuel injectors in such a way that they inject in each case one fuel pre-injection per cylinder during a starting phase of the internal combustion engine. In order to make an improved pre-injection strategy possible during the starting phase, according to the invention at least one cylinder pressure signal which is supplied by a cylinder pressure sensor for measuring the pressure in a cylinder is evaluated with regard to interference signals, and the evaluation result is taken into consideration at least during the starting phase in a determination of the camshaft angle.

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Номер записи: 93
01-08-2013 дата публикации

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

Номер: US20130192562A1
Автор: Eriko Matsumura
Принадлежит: Toyota Motor Corp

A fuel injection control device is provided for an internal combustion engine which includes a fuel injection valve including: a housing which includes a fuel passage, a sac portion, an injection hole, and a valve seat portion; a needle valve which reciprocates in the housing and comes into contact with the valve seat portion; and a drive unit which opens and closes the needle valve. The fuel injection control device includes an injection control portion that performs control for the drive unit to perform a plurality of injections including at least a first injection and a second injection, the first injection being performed by opening the needle valve to an intermediate lift, and the second injection being started when the needle valve is closing after the first injection and being performed by opening the needle valve to a full lift.

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Номер записи: 94
08-08-2013 дата публикации

Exhaust gas purification system

Номер: US20130202493A1
Автор: Atsushi Ohta, Hiroshi Oohashi, Taichi Togashi, Tomohiro Fukuda, Yasuo Noma
Принадлежит: Individual

An exhaust gas purification system comprises an exhaust gas purification device which is arranged in an exhaust gas route of an engine, renewing devices, for burning and removing a particulate matter within the exhaust gas purification device, renewal advance notifying means which is actuated in the case that a clogged state of the exhaust gas purification device becomes equal to or more than a prescribed level, and renewal informing means which informs of a fact that the renewing devices are under operation. The renewal advance notifying means is actuated before actuating the renewing devices.

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Номер записи: 95
08-08-2013 дата публикации

Method for determining the proportion of gaseous working medium in the cylinder of an internal combustion engine

Номер: US20130204509A1
Автор: Christian RIECHERT, Franz Kallage, Matthias Schultalbers, Wolfram Gottschalk
Принадлежит: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR

A method for determining the proportion of gaseous working medium in a cylinder of an internal combustion engine includes opening an injector so as to feed fuel directly into the cylinder. The injector is connected to a fuel line in which a pressure sensor is arranged. The pressure in the fuel line is measured when the injector is open. The proportion of gaseous working medium in the cylinder is determined in conjunction with an association between the measured pressure in the fuel line when the injector is open and the proportion of gaseous working medium in the cylinder.

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Номер записи: 96
22-08-2013 дата публикации

Position detecting device

Номер: US20130214767A1
Автор: Hiroyuki Shintani, Takamitsu Kubota, Yoshiyuki Kono
Принадлежит: Denso Corp

A position detecting device has an output circuit, which controls voltages of signal lines connecting a power supply and a ground by a power side transistor and a ground side transistor. An output signal line connects a connection point of the signal lines and an output terminal. A first comparator circuit outputs a signal “1” when a current flowing in the line between the power supply and the connection point is larger than a normal current flowing into the ground from the power supply in a normal state. A second comparator circuit outputs a signal “1” when a current flowing in the line between the connection point and the ground is larger than the normal current. When the signal “1” is output from the first comparator circuit or the second comparator circuit, a cutoff circuit turns off a switch disposed in the output signal line.

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Номер записи: 97
29-08-2013 дата публикации

Control device of internal combustion engine

Номер: US20130226436A1
Автор: Koji Morita
Принадлежит: Toyota Motor Corp

When alcohol mixing fuel is supplied to an internal combustion engine, an intake air flow rate is detected and a basic amplitude amount α of an upstream target air-fuel ratio abyfr corresponding to this detected intake air flow rate is calculated. Next, alcohol concentration in the fuel (in more detail, ethanol concentration Cetha) and a cooling water temperature (or an intake air temperature) are detected, hydrogen concentration Ch in a mixing exhaust gas is calculated based on the detected ethanol concentration Cetha and the detected cooling water temperature (or the detected intake air temperature) amplitude gain β corresponding to the calculated hydrogen concentration is calculated and finally, an amplitude amount (α×β) of the upstream target air-fuel ratio is calculated.

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Номер записи: 98
12-09-2013 дата публикации

Diagnosis method and control unit for performing a diagnosis of a lambda sensor of the UEGO type of an exhaust system for an internal combustion engine

Номер: US20130234744A1
Автор: Marco Ceroni, Piero Maria Carbonaro
Принадлежит: Magneti Marelli SpA

A method performs a diagnosis of a lambda sensor of a “UEGO” type of an exhaust system for an internal-combustion engine. The lambda sensor includes a series of pins. The diagnosis method comprises steps of: heating the lambda sensor to cause the lambda sensor to reach an inner temperature that is higher than about 600° C.; polarizing a first one of the pins by connecting the first pin to a supply voltage through a first limiting resistance; measuring a voltage of all of the pins while the first pin is connected to the supply voltage; and diagnosing a presence of a short circuit to an electrical ground if the voltage of at least one of the pins is lower than a predetermined threshold. A control unit performs the diagnosis.

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Номер записи: 99
19-09-2013 дата публикации

Catalyst for Use in a Process for Purifying Exhaust Gas from Gasoline Engines of a Fuel-direct-injection Type

Номер: US20130239555A1
Автор: Akihisa Okumura, Makoto Horiuchi, Masao Hori
Принадлежит: Umicore Shokubai Japan Co Ltd, Umicore Shokubai USA Inc

A catalyst for use in a process for purifying exhaust gas from a gasoline engine of the fuel-direct-injection type that varies, in response to changes in the air-fuel ratio, between a first exhaust-gas state featured by an air-fuel ratio in the vicinity of the stoichiometrical air-fuel ratio, and a second exhaust-gas state that forms a more oxidizing, low-temperature atmosphere and that is featured by an air-fuel ratio greater than the stoichiometrical air-fuel ratio, the catalyst being obtained by causing a noble metal and a rare-earth oxide and/or a transition metal to be carried by or to be mixed with a fire-resistant inorganic oxide.

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Номер записи: 100