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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Применить Всего найдено 3357. Отображено 100.
10-06-2000 дата публикации

СИСТЕМА КОНТРОЛЯ И ЗАЩИТЫ ДИЗЕЛЬНОЙ УСТАНОВКИ

Номер: RU0000013931U1
Автор: Гаврилов А.Г., Коломнин В.В., Петров О.Ф., Степанян Н.М., Фурмаков Е.Ф.
Принадлежит: Открытое акционерное общество "Техприбор"

Система контроля и защиты дизельной установки, содержащая управляемый топливный вентиль, измеритель непрерывного параметра контроля, задатчик дискретных параметров контроля, элемент сравнения с первым входом, подключенным к выходу задатчика дискретных параметров контроля, вторым входом, подключенным к первому выходу измерителя непрерывного параметра контроля, причем выход элемента сравнения подключен к запрещающему входу управляемого топливного вентиля, отличающаяся тем, что в качестве измерителя непрерывного параметра контроля применен измеритель скорости вращения, снабженный вторым выходом, в качестве задатчика дискретных параметров контроля применен задатчик контрольной скорости вращения и контрольного времени с дополнительным выходом, в систему дополнительно введены таймер контрольного времени и блок фиксации наличия экстремума скорости вращения, а второй выход измерителя скорости вращения подсоединен к первому входу блока фиксации наличия экстремума скорости вращения, второй вход которого подключен к выходу таймера контрольного времени, а выход - к разрешающему входу управляемого топливного вентиля, при этом вход таймера контрольного времени присоединен к дополнительному выходу задатчика контрольной скорости вращения и контрольного времени. (19) RU (11) 13 931 (13) U1 (51) МПК G05D 13/04 (2000.01) F02D 35/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 99122319/20, 13.10.1999 (24) Дата начала отсчета срока действия патента: 13.10.1999 (46) Опубликовано: 10.06.2000 (72) Автор(ы): Фурмаков Е.Ф., Коломнин В.В., Петров О.Ф., Степанян Н.М., Гаврилов А.Г. 1 3 9 3 1 R U (57) Формула полезной модели Система контроля и защиты дизельной установки, содержащая управляемый топливный вентиль, измеритель непрерывного параметра контроля, задатчик дискретных параметров контроля, элемент сравнения с первым входом, подключенным к выходу задатчика дискретных параметров контроля, вторым входом, ...

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Номер записи: 1
20-05-2014 дата публикации

СИСТЕМА ДВИГАТЕЛЯ

Номер: RU0000140661U1
Автор: БАСКИНС Роберт Сэроу, ГЛУГЛА Крис Пол
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система двигателя, содержащая: двигатель, содержащий первый цилиндр с первым более высоким числом преждевременных воспламенений и второй цилиндр со вторым более низким числом преждевременных воспламенений; турбонагнетатель, выполненный с возможностью обеспечения подвергнутого наддуву заряда всасываемого воздуха в двигатель; форсунку непосредственного впрыска, выполненную с возможностью осуществления непосредственного впрыска некоторого количества топлива в первый и/или второй цилиндр; и контроллер с машиночитаемыми командами для: сравнения первого и второго чисел преждевременного воспламенения; выбора общего числа преждевременных воспламенений на основании сравнения; впрыска топлива в первый цилиндр для обогащения первого цилиндра на первую величину; и впрыска топлива во второй цилиндр для обеднения второго цилиндра на вторую величину, при этом первая и вторая величины основаны на отклонении первого и второго чисел преждевременного воспламенения от общего числа преждевременных воспламенений, и первая и вторая величины регулируются для поддержания топливно-воздушного соотношения выхлопных газов двигателя на или около стехиометрии. 2. Система по п. 1, дополнительно содержащая третий цилиндр с третьим числом преждевременных воспламенений, более низким, чем первое число преждевременных воспламенений, а контроллер дополнительно включает в себя команды для впрыска топлива в третий цилиндр, чтобы обеднять третий цилиндр на третью величину, причем вторая и третья величины являются меньшими, чем первая величина, при этом первая, вторая и третья величины регулируются для поддержания топливно-воздушного соотношения выхлопных газов двигателя на или около стехиометрии. 3. Система по п. 2, в которой общее число преждевременных воспламенений дополнительно регулируется на основании содержания спиртов впрыскиваемого топлива. 4. Система по п. 2, в которой общее число преждевременных воспламенений дополнительно регулируется на основании частоты детонации первого и второго цилиндра. ...

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Номер записи: 2
10-06-2015 дата публикации

СИСТЕМА ДИАГНОСТИКИ ДАТЧИКА ВЛАЖНОСТИ

Номер: RU0000152493U1
Автор: КЛАРК Тимоти Джозеф, КУМАР Панкадж, МАККИ Имад Хассан, ПЕРСИФУЛЛ Росс Дикстра, УХРИХ Майкл Джеймс
Принадлежит: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи

1. Система диагностики датчика влажности, содержащая: двигатель, присоединенный к системе впуска и системе выпуска; датчик влажности; и контроллер, включающий в себя команды для: во время первого состояния, когда датчик влажности подвергается воздействию первого газового потока, настройки рабочего параметра двигателя на основании выходного сигнала датчика влажности; и во время второго состояния, когда датчик влажности подвергается воздействию второго газового потока, указания ухудшения характеристик датчика влажности, если выходной сигнал датчика влажности является иным, чем ожидаемый выходной сигнал. 2. Система по п. 1, в которой: датчик влажности расположен в системе впуска двигателя ниже по потоку от дросселя системы впуска воздуха, причем в первом состоянии дроссель системы впуска воздуха находится в полностью открытом положении, первый газовый поток содержит всасываемый воздух при барометрическом давлении, причем во втором состоянии дроссель системы впуска воздуха находится в закрытом или частично закрытом положении, и второй газовый поток содержит всасываемый воздух под меньшим, чем барометрическое, давлением. 3. Система по п. 1, в которой: датчик влажности расположен на выходе канала рециркуляции отработавших газов (EGR), причем в первом состоянии клапан EGR находится в полностью закрытом положении, первый газовый поток содержит всасываемый воздух, причем во втором состоянии клапан EGR находится в частично или полностью открытом положении, и второй газовый поток содержит отработавшие газы. 4. Система по п. 1, в которой: датчик влажности расположен в трубке вентиляции системы вентиляции картера, причем в первом состоянии давление во впускном коллекторе меньше, чем барометрическое давление, первый газовый поток содержит всасываемый воздух, причем во втором состоянии давление во впускном коллекторе больше, чем барометрическое давление, и второй газовый поток содержит воздух вентиляции картера. 5. Система по п. 1, в которой: датчик влажности расположен в трубке ...

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Номер записи: 3
30-07-2018 дата публикации

УСТРОЙСТВО ДЛЯ РЕГУЛИРОВАНИЯ ЧАСТОТЫ ВРАЩЕНИЯ КОЛЕНЧАТОГО ВАЛА ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU0000181951U1
Автор: Кочергин Виктор Иванович
Принадлежит: Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет путей сообщения" (СГУПС)

Устройство предназначено для регулирования частоты вращения коленчатого вала двигателя внутреннего сгорания. Устройство содержит датчик частоты вращения (1), формирователь сигналов (2), аналого-цифровой преобразователь (3), анализатор сигналов (4), оперативное запоминающее устройство (5), дифференциатор (6), программатор (7), логический элемент «И» (8), пульт управления (9), схему сравнения (10), генератор импульсов (11), делитель частоты (12), блок управления (13), коммутатор (14), широтно-импульсный модулятор (15), усилитель мощности (16) и исполнительное устройство регулятора подачи топлива (17). Такое выполнение обеспечивает повышение качества регулирования частоты вращения коленчатого вала ДВС за счет обеспечения упреждающего воздействия по производной на положение исполнительного механизма регулятора подачи топлива с учетом скорости изменения регулируемого параметра. 1 ил. И 1 181951 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВУ” 184 9517 44 ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ИЗВЕЩЕНИЯ К ПАТЕНТУ НА ПОЛЕЗНУЮ МОДЕЛЬ ММ9К Досрочное прекращение действия патента из-за неуплаты в установленный срок пошлины за поддержание патента в силе Дата прекращения действия патента: 15.11.2020 Дата внесения записи в Государственный реестр: 24.09.2021 Дата публикации и номер бюллетеня: 24.09.2021 Бюл. №27 Стр.: 1 па роб Г3З | ЕП

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Номер записи: 4
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: 5
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: 6
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: 7
03-05-2012 дата публикации

Combustion balancing control strategy using normalized instantaneous heat release in hcci engines

Номер: US20120103304A1
Автор: Chen-Fang Chang, Hanho Yun, Jun-Mo Kang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for controlling combustion in a multi-cylinder internal combustion engine operating in a controlled auto-ignition mode includes providing combustion control parameters, determining peak cylinder pressures and crank angle location of the peak cylinder pressures. Cylinder volumes at the peak cylinder pressures and at intake valve closings are determined and cylinder pressures at intake valve closings are determined. A combustion parameter for each cylinder is calculated based upon the peak cylinder pressure, the cylinder pressure at the intake valve closing, the crank angle location of the peak cylinder pressure, the cylinder volume coincident with the peak cylinder pressure, and the cylinder volume at the intake valve closing. A target combustion parameter is determined and the calculated combustion parameter for each cylinder is compared to the target combustion parameter. The provided combustion control parameters for each cylinder are adjusted to balance the combustion parameter across all cylinders based on the comparison. The engine is controlled based on the adjusted provided combustion control parameters.

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Номер записи: 8
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: 9
16-08-2012 дата публикации

Method for cylinder equalization in a multi-cylinder internal combustion engine

Номер: US20120204830A1
Автор: Christian Steinbrecher, Matthias Schultalbers, Olaf Magnor, Wolfram Gottschalk
Принадлежит: IAV GMBH INGENIEURGESELLSCHAFT AUTO UND VERKEHR

A method is provided for equalizing the cylinders of a multi-cylinder internal combustion engine. The internal combustion engine is configured as a reciprocating engine having direct injection and spark ignition. A fuel mass is injected in a cylinder-specific manner, and a cylinder-specific air mass and a cylinder-specific ignition time are each adjustable. An injection amount is equalized, then a charge is equalized and then a mean combustion pressure is equalized.

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Номер записи: 10
25-10-2012 дата публикации

Method and System for Pre-Ignition Control

Номер: US20120266847A1
Автор: Chris Paul Glugla, Robert Sarow Baskins
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for addressing cylinder pre-ignition by adjusting a spray angle of fuel injected into a cylinder responsive to an indication of pre-ignition. A spray pattern of fuel injected in the cylinder is varied based on a cylinder pre-ignition count to reduce cylinder wall impingement of injected fuel while improving air-fuel mixing in the cylinder.

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Номер записи: 11
01-11-2012 дата публикации

Cylinder pressure parameter correcting systems and methods

Номер: US20120277970A1
Автор: Allen B. Rayl
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system includes a net mean effective pressure (NMEP) error module, a correction determination module, a mean effective pressure (MEP) correction module, and an actuator control module. The NMEP error module determines an NMEP error for a combustion cycle of a cylinder based on an expected NMEP for the combustion cycle, a measured NMEP for the combustion cycle, and a difference between an expected change in an engine speed for the combustion cycle and a measured change in the engine speed for the combustion cycle. The correction determination module determines an offset correction and a slope correction based on the NMEP error. The MEP correction module that generates a corrected NMEP for the combustion cycle based on the measured NMEP, the offset correction, and the slope correction. The actuator control module controls an engine operating parameter based on the corrected NMEP.

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Номер записи: 12
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: 13
04-07-2013 дата публикации

ACCELERATION SHOCK REDUCTION CONTROL DEVICE, AND METHOD AND PROGRAM PRODUCT FOR CONTROLLING ACCELERATION SHOCK REDUCTION

Номер: US20130173141A1
Автор: HAMAMURA Masahiro, Kawai Kazunori
Принадлежит: SUZUKI MOTOR CORPORATION

An acceleration shock reduction control device, which reduces an acceleration shock occurring when a vehicle shifts from a deceleration state to an acceleration state, includes a first detector that detects rotation information of an engine mounted on the vehicle, a second detector that detects rotation information of a driving wheel which rotates by an output transmitted from the engine, and a controller that performs control to reduce the acceleration shock based on deviation information between the rotation information detected by the first detector and the rotation information detected by the second detector. 1. An acceleration shock reduction control device which reduces an acceleration shock occurring when a vehicle shifts from a deceleration state to an acceleration state , the acceleration shock reduction control device comprising:means for detecting rotation information of an engine mounted on the vehicle;means for detecting rotation information of a driving wheel which rotates by an output transmitted from the engine; andmeans for performing control to reduce the acceleration shock based on deviation information between the rotation information detected by the means for detecting rotation information of the engine and the rotation information detected by the means for detecting rotation information of the driving wheel.2. The acceleration shock reduction control device according to claim 1 , further comprisingmeans for calculating rotation information which converts the rotation information detected by the means for detecting rotation information of the driving wheel to rotation information of the engine to calculate the rotation information,wherein the deviation information is a rotation difference value between the rotation information detected by the means for detecting rotation information of the engine and the rotation information calculated by the means for calculating rotation information.3. The acceleration shock reduction control device according ...

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Номер записи: 14
04-07-2013 дата публикации

VEHICLE CONTROL DEVICE

Номер: US20130173142A1
Автор: KATO Hirokazu
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle control device includes an engine that is a power source of a vehicle, an electrical storage device, a starting device connected to the electrical storage device and configured to consume electrical power to start the engine, and a power steering device connected to the electrical storage device and configured to consume electrical power to generate an assist torque, wherein an engine stop control of causing the engine to be in a stopped state is executable during travelling of the vehicle, and the engine stop control is prohibited in at least one of time of turning of the vehicle, time of steering of the vehicle during travelling, and time of generating an assist torque during travelling. 1. A vehicle control device comprising:an engine that is a power source of a vehicle;an electrical storage device;a starting device connected to the electrical storage device and configured to consume electrical power to start the engine; anda power steering device connected to the electrical storage device and configured to consume electrical power to generate an assist torque, whereinan engine stop control of causing the engine to be in a stopped state is executable during travelling of the vehicle, andthe engine stop control is prohibited in at least one of time of turning of the vehicle, time of steering of the vehicle during travelling, and time of generating an assist torque during travelling.2. The vehicle control device according to claim 1 , wherein the prohibition of the engine stop control is determined on the basis of an assist current value of the power steering device.3. The vehicle control device according to claim 2 , wherein the engine stop control is prohibited when the assist current value exceeds a current value defined in advance.4. The vehicle control device according to claim 2 , wherein the engine stop control is prohibited on the basis of a changing speed of the assist current value.5. The vehicle control device according to claim 2 , whereinthe ...

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Номер записи: 15
11-07-2013 дата публикации

SENSOR SIGNAL PROCESSING DEVICE

Номер: US20130179052A1
Автор: ITOU Akito, KAWAKAMI Daisuke, KUNO Ryotaro
Принадлежит: DENSO CORPORAITON

A microcomputer is formed of a CPU and a detection circuit and inputs sensor signals of a vibration sensor and a rotation sensor. The detection circuit includes an AD converter circuit for AD conversion of the sensor signal of the vibration sensor at a predetermined sampling interval, a peak hold circuit for detecting a peak value of the sensor signal, a RAM for storing the peak value, a counter for detecting a crank angle at a peak value detection time, and an angle calculation part. The microcomputer divides a pre-ignition check interval into plural interval units and checks the pre-ignition based on the peak value detected in each unit interval. The pre-ignition and the knock are checked by using different threshold values in an interval, in which the pre-ignition check interval overlaps a knock check interval. 1. A sensor signal processing device comprising:an AD conversion part for converting an analog sensor signal outputted from a sensor, which detects a combustion condition in a cylinder of an engine, into a digital signal;a pre-ignition check interval setting part for setting a pre-ignition check interval in synchronism with a crank angle indicated by a rotation sensor signal, which varies with a rotation of a crankshaft of the engine;a crank angular interval setting part for setting a plurality of crank angular intervals by dividing the pre-ignition check interval;a time measuring part for measuring elapse time in the plurality of crank angular intervals;a peak value detection part for detecting a peak value of the digital signal outputted from the AD conversion part in each of the plurality of crank angular intervals;a crank angle calculation part for calculating a peak value detection crank angle, at which the peak value is detected in each of the plurality of crank angular intervals, based on the elapse time measured by the time measuring part until the peak value is detected by the peak value detection part; anda memory part for storing the peak value ...

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Номер записи: 16
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: 17
18-07-2013 дата публикации

ENGINE REMOTE START CONTROL METHOD AND SYSTEM

Номер: US20130184970A1
Автор: Kanafani Fadi S.
Принадлежит:

A method is provided and may include monitoring operation of an engine of a vehicle, determining if the engine is started, and determining if the engine was started via an ignition or via a remote signal. The method may further include controlling operation of the engine at a first temperature if the engine was started via the ignition and controlling operation of the engine at a second temperature—different than the first temperature—if the engine was started via the remote signal. The second temperature may be higher than the first temperature to increase a temperature of coolant circulating within the engine. 1. A method comprising:monitoring operation of an engine of a vehicle;determining if said engine is started;determining if said engine was started via an ignition or via a remote signal;controlling operation of said engine at a first temperature if said engine was started via said ignition; andcontrolling operation of said engine at a second temperature, different than said first temperature, if said engine was started via said remote signal, said second temperature being higher than said first temperature to increase a temperature of coolant circulating within said engine.2. The method of claim 1 , wherein said controlling operation of said engine at said second temperature increases a temperature of coolant circulating within said engine and to an HVAC system of said vehicle.3. The method of claim 1 , wherein said controlling operation of said engine at said second temperature includes controlling a spark-plug timing.4. The method of claim 3 , wherein said controlling said spark timing includes initiating a spark in said engine at a later time during a stroke of said engine when compared to operating said engine at said first temperature.5. The method of claim 1 , wherein said controlling operation of said engine at said second temperature includes controlling at least one of an exhaust valve and an intake valve of said engine.6. The method of claim 5 , ...

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Номер записи: 18
01-08-2013 дата публикации

SUPERVISORY CONTROL SYSTEM FOR SERIES TYPE HYBRID-ELECTRIC POWERTRAINS

Номер: US20130197780A1
Автор: Oehlerking Dale A.
Принадлежит:

A method of operating a series type hybrid-electric powertrain having an internal combustion engine, a generator, and a battery is provided. A state of charge level of a battery is estimated. The state of charge level estimate is compared to a first threshold. An internal combustion engine operates at a first engine speed setpoint and a first engine torque output setpoint when the state of charge level estimate is below the first threshold. The state of charge level estimate is compared to a second threshold. The second threshold is a lower state of charge level than the first threshold. The internal combustion engine operates at a second engine speed setpoint and a second engine torque output setpoint when the state of charge level estimate is below the second threshold. The internal combustion engine generates more torque at the second torque output setpoint. 1. A method of operating a series type hybrid-electric powertrain having an internal combustion engine , a generator , and a battery , the method comprising:estimating a state of charge level of a battery;comparing the estimated state of charge level to a first threshold;operating an internal combustion engine at a first engine speed setpoint and a first engine torque output setpoint when the estimated state of charge level is below the first threshold;comparing the estimated state of charge level to a second threshold, the second threshold being a lower state of charge level than the first threshold; andoperating the internal combustion engine at a second engine speed setpoint and a second engine torque output setpoint when the estimated state of charge level is below the second threshold, wherein the internal combustion engine generates more torque at the second torque output setpoint.2. The method of operating a series type hybrid-electric powertrain having an internal combustion engine claim 1 , a generator claim 1 , and a battery of claim 1 , wherein the generator provides a load on the internal ...

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Номер записи: 19
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: 20
12-09-2013 дата публикации

VEHICLE CONTROL APPARATUS AND VEHICLE CONTROL METHOD

Номер: US20130238216A1
Автор: MORI Yukio, Yamamoto Kentaro
Принадлежит: ADVICS CO., LTD.

Force of depressing operation of a brake pedal is estimated on the basis of an output torque of an internal-combustion engine computed by an engine ECU and acceleration of a vehicle detected by an acceleration sensor. When the estimated force of the depressing operation of the brake pedal is greater than or equal to a second determination value and the amount of depressing operation of an accelerator pedal detected by an accelerator operation amount sensor is greater than or equal to a first determination value, the output torque of the internal-combustion engine is restricted. Accordingly, acceleration and start of the vehicle due to simultaneous depressing of the accelerator pedal and the brake pedal can be restricted without providing a sensor for detecting the amount of the depressing operation of the brake pedal. 1. A vehicle control apparatus applied to a vehicle including an internal-combustion engine as a driving source , an acceleration sensor , which detects vehicle acceleration , and an accelerator operation amount sensor , which detects an amount of a depressing operation of an accelerator pedal , the vehicle control apparatus comprising:an output computing section, which computes an output torque of the internal-combustion engine;a depressing force estimating section, which estimates a force of a depressing operation of a brake pedal of the vehicle, on the basis of the vehicle acceleration detected by the acceleration sensor and the output torque computed by the output computing section; anda torque restricting section, which restricts a driving torque transmitted from the internal-combustion engine to an axle of the vehicle when the amount of the depressing operation of the accelerator pedal detected by the accelerator operation amount sensor is greater than or equal to a first determination value and the force of the depressing operation of the brake pedal estimated by the depressing force estimating section is greater than or equal to a second ...

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Номер записи: 21
03-10-2013 дата публикации

CONTROL DEVICE OF A MOTOR VEHICLE

Номер: US20130261940A1
Автор: Gruener Florian
Принадлежит: Dr. Ing h.c. F. Porsche Aktiengesellschaft

A control device of a motor vehicle, for controlling and/or regulating at least the operation of an internal combustion engine, wherein, before the execution of at least one defined function and/or during the execution of at least one defined function, the control device demands operation of the internal combustion engine in a defined operating state, and wherein, as a function of the length of time for which the respective defined function has not been executed and/or as a function of the length of time for which a defined operating state of the internal combustion engine has not occurred, the control device determines a defined characteristic variable, on the basis of which the control device, in a temporally variable manner, determines different and/or variable measures for influencing the operating state of the internal combustion engine. 1. A control device of a motor vehicle , for controlling and/or regulating at least the operation of an internal combustion engine of the motor vehicle , wherein , before the execution of at least one defined function and/or during the execution of at least one defined function , the control device demands operation of the internal combustion engine in a defined operating state , wherein , as a function of a length of time for which the respective defined function has not been executed and/or as a function of the length of time for which a defined operating state of the internal combustion engine has not occurred , the control device determines a defined characteristic variable , on the basis of which the control device , in a temporally variable manner , determines different and/or variable measures for influencing the operating state of the internal combustion engine.2. The control device as claimed in claim 1 , wherein claim 1 , when the internal combustion engine is running and when the respective defined function is not being executed and/or when the defined operating state of the internal combustion engine is not present ...

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Номер записи: 22
31-10-2013 дата публикации

METHOD AND SYSTEM FOR CONTROLLING FUEL USAGE

Номер: US20130284145A1
Автор: Leone Thomas G., Surnilla Gopichandra, Ulrey Joseph Norman
Принадлежит:

Methods and systems are provided for improving fuel 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. 1. A method of operating an engine comprising ,adjusting a direct water injection to an engine cylinder;during a first water injection timing, adjusting an engine throttle by a first amount based on an amount of water injected; andduring a second, later, water injection timing, adjusting the engine throttle by a second, lesser, amount based on the amount of water injected.2. The method of claim 1 , wherein a water injection amount is adjusted based on engine knock.3. The method of claim 1 , wherein a water injection amount is adjusted based on claim 1 , desired engine dilution claim 1 , and EGR transients.4. The method of claim 1 , wherein the second claim 1 , later claim 1 , timing is with respect to intake valve closing (IVC).5. The method of claim 4 , further comprising adjusting the water injection timing later from IVC as knocking increases.6. The method of claim 4 , further comprising retarding the water injection timing from IVC as the desired dilution increases.7. The method of claim 1 , wherein the first injection timing is more retarded from IVC than the second injection timing.8. The method of claim 1 , wherein the second injection timing is before IVC.9. The method of claim 1 , wherein at least part of the second injection timing is before IVC.10. A method of operating an engine comprising claim 1 ,direct injecting an amount of knock control fluid to a cylinder of the engine based on engine operating conditions; andadjusting an engine throttle position of a throttle downstream of a compressor based on the injection amount, injection timing, and fluid composition.11. The method ...

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Номер записи: 23
28-11-2013 дата публикации

Start-Up Possibility Determining Apparatus and Start-Up Possibility Determining Method

Номер: US20130317729A1
Автор: MITSUYAMA Taiji, SATO Etsuzo
Принадлежит:

A start-up possibility determining apparatus that determines an engine-start-up possibility by driving a starter motor by power accumulated in a secondary battery includes a dynamic internal resistance measuring unit that measures an internal resistance of the secondary battery while the engine is being started up by the starter motor, a static internal resistance measuring unit that measures an internal resistance of the secondary battery when the engine is stopped, and a determining unit that determines an engine start-up possibility by the secondary battery, based on a value obtained by a product of a ratio between a first static internal resistance before or after the past engine start-up and a second static internal resistance within a predetermined time since a current time point and the dynamic internal resistance measured by the dynamic internal resistance measuring unit at the time of the engine start-up in the past. 1. A start-up possibility determining apparatus that determines whether an engine can be started up by driving a starter motor by electric power accumulated in a secondary battery , comprising:a dynamic internal resistance measuring unit that measures a dynamic internal resistance which is an internal resistance of the secondary battery while the engine is being started up by the starter motor;a static internal resistance measuring unit that measures a static internal resistance which is an internal resistance of the secondary battery when the engine is stopped; anda determining unit that determines possibility of a start-up of the engine by the secondary battery, based on a value obtained by a product of a ratio between a first static internal resistance which was measured by the static internal resistance measuring unit before or after a time of an engine start-up in the past and a second static internal resistance which was measured by the static internal resistance measuring unit within a predetermined time since a current point of time and ...

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Номер записи: 24
19-12-2013 дата публикации

Control apparatus for internal combustion engine, method of controlling internal combustion engine, and computer-readable storage medium

Номер: US20130338906A1
Автор: Satoshi FURUHASHI, Shusuke Akazaki, Yuji Yamamoto
Принадлежит: Honda Motor Co Ltd

A control apparatus for an internal combustion engine includes a cylinder internal pressure sensor, a fuel injection parameter calculator, a driving device, and a sensor output signal processing device. The sensor output signal processing device is configured to set a noise reduction period in accordance with an opening time and an opening start time of a fuel injection valve and is configured to reduce, during the noise reduction period, noise that is included in a cylinder internal pressure sensor output signal and that is caused by opening of the fuel injection valve.

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Номер записи: 25
09-01-2014 дата публикации

Method for controlling engine noise including combustion noise of internal combustion engine

Номер: US20140012487A1
Автор: InSoo Jung
Принадлежит: Hyundai Motor Co

A method for controlling noise including combustion noise of an internal combustion engine includes (a) setting an engine noise target value and a cylinder pressure level target value, (b) determining a first comparison value by subtracting a measured cylinder pressure level from the cylinder pressure level, (c) receiving an engine noise parameter stored in an ECU, (d) determining the engine noise using the engine noise measured at step (c), (e) determining a direct correlation coefficient, an indirect correlation coefficient, mechanical noise, and flow noise through a proportional integral controller, (f) performing correction, (g) controlling the engine based on the value decided at step (f), (h) measuring a combustion pressure after step (g), (i) converting the combustion pressure into a cylinder pressure level within a predetermined crank angle after step (g), and (j) determining direct combustion noise of the engine noise after step (h).

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Номер записи: 26
13-02-2014 дата публикации

Knock control apparatus for an internal combustion engine

Номер: US20140041439A1
Автор: Yuhei Matsushima
Принадлежит: Mitsubishi Electric Corp

A knock control apparatus for an internal combustion engine can remove regularly generated noise vibration in a simple and appropriate manner. The apparatus includes a knock sensor, a crank angle sensor, a vibration waveform detection unit that detects a vibration waveform of a knock natural frequency component, a vibration waveform average value calculation unit that calculates a vibration waveform average value corresponding to a noise vibration waveform by filtering the vibration waveform over a plurality of ignition cycles, a noise vibration waveform removal unit that removes the noise vibration waveform by subtracting the vibration waveform average value from the vibration waveform, a knock determination threshold value calculation unit that calculates a threshold value based on a peak value of the vibration waveform after removal of the noise vibration waveform, and a knock determination unit that determines whether a knock has occurred, by comparing the peak value with the threshold value.

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Номер записи: 27
20-02-2014 дата публикации

Method and device for controlling pilot injection timing when abnormality occurs in combustion diagnosis signal relating to engine

Номер: US20140048046A1
Автор: Yasuhiro Saeki
Принадлежит: Mitsubishi Heavy Industries Ltd

The present invention includes: an injection timing correction unit 62 which repeatedly corrects a fuel injection timing in relation to a cylinder in which combustion is determined by a combustion diagnosis device 44 to be less than optimal such that a correction amount accumulates until combustion is determined to be optimal; an allowable correction range setting unit 64 which sets an allowable correction range of the fuel injection timing on the basis of data indicating past fuel injection timings of a plurality of cylinders; an injection timing determination unit 70 which determines whether or not the fuel injection timing corrected by the injection timing correction unit 62 is within the allowable correction range; and a command control unit 72 which outputs an injection command at the corrected fuel injection timing when the determination unit determines that the corrected fuel injection timing is within the allowable correction range.

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Номер записи: 28
05-01-2017 дата публикации

SYSTEM AND METHOD FOR OXIDANT TEMPERATURE CONTROL

Номер: US20170002722A1
Автор: Jayaram Rajesh Kumar, Madireddy Sreekanth James, Vijayakumar Diwakar Memangalam
Принадлежит:

A system includes a compressed air system configured to couple to an engine. The compressed air system includes a compression device configured to compress an air flow, a heat exchanger configured to exchange heat with the air flow along a first flow path, and a bypass system configured to flow the air along a second flow path that bypasses the heat exchanger. The compressed air system is configured to selectively flow the airflow along the first flow path, the second flow path, or a combination thereof, to the engine. 1. A system comprising: a compression device configured to compress an air flow;', 'a heat exchanger configured to exchange heat with the air flow along a first flow path; and', 'a bypass system configured to flow the air along a second flow path that bypasses the heat exchanger, wherein the compressed air system is configured to selectively flow the airflow along the first flow path, the second flow path, or a combination thereof, to the engine., 'a compressed air system configured to couple to an engine, the compressed air system comprising2. The system of claim 1 , wherein the compressed air system may include exhaust gas recirculation (EGR) gases.3. The system of claim 1 , wherein the heat exchanger is coupled to a first coolant circuit claim 1 , wherein the heat exchanger is configured to transfer heat from a portion of the compressed air flow to a first coolant flow through the first coolant circuit.4. The system of claim 3 , wherein the heat exchanger comprises a high pressure stage and a low pressure stage claim 3 , wherein the high pressure stage is coupled to the first coolant circuit claim 3 , the low pressure stage is coupled to a second coolant circuit claim 3 , and the low pressure stage is configured to transfer heat from the portion of the compressed air flow to a second coolant flow through the second coolant circuit.5. The system of claim 4 , comprising an engine cooling system claim 4 , wherein the engine cooling system comprises:a ...

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Номер записи: 29
07-01-2016 дата публикации

ABNORMAL COMBUSTION DETECTION APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20160003173A1
Автор: Hayakawa Yutaka, OKADA Yoshihiro
Принадлежит:

An object of the present invention is to provide a technology that enables an abnormal combustion detection apparatus for a spark ignition internal combustion engine having a plurality of cylinders to detect abnormal combustion such as pre-ignition and knocking with improved accuracy. To achieve the object, according to the present invention, in an abnormal combustion detection apparatus for a spark-ignition internal combustion engine that determines or detects the occurrence of abnormal combustion by comparing a vibration intensity obtained from a measurement signal of a knock sensor and a determination threshold, when the occurrence of abnormal combustion is detected, the apparatus corrects a determination threshold for the next cylinder using as parameters the peak value of the vibration intensity at the time of the occurrence of abnormal combustion and the engine speed. 1. An abnormal combustion detection apparatus for a spark-ignition internal combustion engine having a plurality of cylinders , comprising:measurement unit for measuring the vibration intensity of the internal combustion engine;determination unit for performing determination processing, which determines that abnormal combustion occurs, if the vibration intensity measured by said measuring unit in a determination period set for each cylinder is higher than a determination threshold; andcorrection unit for correcting a determination threshold to be used in determination processing for a next cylinder on the basis of a peak value of the vibration intensity measured by said measurement unit at the time when the abnormal combustion occurs and an engine speed, when it is determined by said determination unit that the abnormal combustion occurs.2. An abnormal combustion detection apparatus according to claim 1 , wherein claim 1 , said correction unit calculates the intensity of vibration lingering in the determination period for the next cylinder using as parameters said peak value and said engine speed ...

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Номер записи: 30
02-01-2020 дата публикации

METHOD FOR MANAGING PINKING IN A CONTROLLED-IGNITION INTERNAL COMBUSTION ENGINE

Номер: US20200003136A1
Автор: FORTI Olivier, HAGUET Alexandre
Принадлежит:

A method for managing knock in a cylinder of an internal combustion engine, in a system including at least one acoustic sensor and a processor, in order to take into account acoustic pollution resulting from a noise, the method including: forming and digitizing the signals of the acoustic sensor, applying a bandpass filter to obtain a filtered noise, determining an adjustable gain-correction function using a gain-correction curve and, depending on the angular position of the end of injection, the point on the gain-correction curve to be used to convert the filtered noise into a corrected knock score, comparing a corrected knock score thus obtained to a knock decision threshold, to correct the timing advance, the gain-correction curve being defined by a calibration value and four angular points obtained by calculation based on the start and end positions of a knock-observation window and on a known characteristic of the noise. 1. A method for managing knock in a cylinder of an internal combustion engine , the method being implemented in a system comprising at least one acoustic sensor and a processor , the method being intended to take into account acoustic pollution resulting from a known repeatable parasitic noise of variable temporal position , the method comprising:forming and digitizing signals delivered by the acoustic sensor,applying a bandpass filter in order to preserve only a frequency range of interest for knock, in a filtered noise,determining an adjustable gain-correction function using a gain-correction curve, intended to decrease the influence of the parasitic noise,determining, depending on an angular position of an end of injection, a point on the gain-correction curve to be used to convert the filtered noise into a corrected knock score,comparing corrected knock score thus obtained to a knock decision threshold,deducing therefrom an ignition timing advance correction value to be applied in the next cycle,{'b': 1', '2', '1, 'wherein the gain- ...

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Номер записи: 31
07-01-2021 дата публикации

A METHOD FOR ESTIMATING CYLINDER PRESSURE

Номер: US20210003082A1
Автор: Carlson David, LUNDGREN Staffan
Принадлежит: VOLVO TRUCK CORPORATION

The invention relates to a method () for estimating a cylinder pressure (CP) in an internal combustion engine arrangement (), the method comprising the steps of: initiating () an opening of a valve by an actuator during an expansion stroke; monitoring () the valve to determine a point in time (Tp) when the valve opens; determining () a differential pressure (DP) between the combustion cylinder and a position in a fluid medium exhaust passage () downstream said valve at the point in time (Tp); receiving () data being indicative of a pressure (EP) in the fluid medium passage at the point in time (Tp); and determining () the cylinder pressure (CP) at the point in time (Tp) based on the determined differential pressure (DP) and the data indicative of the pressure in said fluid medium passage. 1. A method for estimating a cylinder pressure (CP) in an internal combustion engine arrangement , said internal combustion engine arrangement comprising an internal combustion engine having a combustion cylinder and a reciprocating piston movable within said combustion cylinder between a bottom dead center (BDC) and a top dead center (TDC) , and further a flow control valve assembly adapted to regulate the flow of a fluid medium passing through the flow control valve in fluid communication with the combustion cylinder and comprising a valve operable between an open position and a closed position and an actuator operable to provide an opening force for opening the valve ,characterized by the method comprising the steps of:initiating an opening of said valve by said actuator during an expansion stroke;monitoring said valve to determine a point in time (Tp) when said valve opens;determining a differential pressure (DP) between a gas pressure level of the fluid medium in said combustion cylinder and a pressure level of the combustion gas in a fluid medium passage downstream said valve at said point in time (Tp);receiving data being indicative of a pressure (EP) in said fluid medium ...

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Номер записи: 32
01-01-2015 дата публикации

MOTOR VEHICLE AND METHOD OF CONTROL OF A MOTOR VEHICLE

Номер: US20150006064A1
Автор: Dextreit Clement, Eftychiou Yiannis
Принадлежит:

In one aspect of the invention there is provided a motor vehicle comprising an engine, the vehicle being operable automatically to stop the engine responsive to a determination that the engine is not required to provide torque to drive the vehicle, wherein the vehicle comprises control means operable to monitor a value of one or more parameters associated with the vehicle during a drive cycle, the control means being arranged automatically to determine whether a current driving style of a driver corresponds to an economy-oriented driving style or a performance-oriented driving style responsive to the value of the one or more parameters over time during the drive cycle, the control means being operable to over-ride stopping of the engine when it is determined that the driving style of the driver corresponds to a performance-oriented style. 130-. (canceled)31. A controller for a motor vehicle having an engine and an engine control system operable automatically to stop the engine in dependence on a determination that the engine is not required to provide torque to drive the vehicle , wherein the controller is configured to:monitor one or more parameters associated with the vehicle during a drive cycle;determine whether a current driving style of a driver corresponds to a first driving style or a second driving style in dependence on the value of the one or more parameters over time during the drive cycle; andto over-ride stopping of the engine by the engine control system when it is determined that the driving style of the driver corresponds to the second driving style.32. A controller as claimed in configured to calculate a value of a driver behavior index in dependence on the driving style of the driver and to over-ride stopping of the engine responsive to the value of driver behavior index.33. A controller as claimed in configured to change the value of the driver behavior index toward a first value when the driver displays the first driving style and to change the ...

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Номер записи: 33
12-01-2017 дата публикации

CYLINDER PRESSURE BASED CONTROL OF DUAL FUEL ENGINES

Номер: US20170009671A1
Автор: Bruner C. Larry, George Geomy, Kolhouse J. Steven, Lutz Timothy P., zur Loye Axel Otto
Принадлежит:

Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations. 1. A method , comprising;operating an internal combustion engine system including an intake system connected to an engine with a plurality of cylinders and at least two fuel sources operably connected to the internal combustion engine system to provide a flow of liquid fuel to each of the plurality of cylinders and a flow of a gaseous fuel to each of the plurality of cylinders, wherein the intake system is coupled to each of the plurality of cylinders to provide a charge flow from the intake system to a combustion chamber of the respective cylinder, the internal combustion engine system further including an exhaust system;determining a pressure in the combustion chamber of at least one cylinder during a combustion cycle associated with the cylinder;determining at least one operating condition of the at least one cylinder that is based on the pressure; andadjusting a substitution rate of the gaseous fuel for the liquid fuel in response to the operating condition deviating from a target operating condition.2. (canceled)3. The method of claim 1 , wherein the pressure is an indicated mean effective pressure (IMEP) claim 1 , the operating condition is an energy output determined from the IMEP in response to combustion of the liquid fuel and gaseous fuel in the combustion chamber claim 1 , and a first part of the operating condition is an energy contribution of the liquid fuel to the energy output determined from an amount of the liquid fuel provided during the combustion cycle and a heating value of the liquid fuel and a second part of the operating condition is an energy contribution of the gaseous fuel to the energy output.4. ...

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Номер записи: 34
12-01-2017 дата публикации

Control apparatus for internal combustion engine

Номер: US20170009672A1
Автор: Keisuke Sasaki, Yoshihiro Sakayanagi
Принадлежит: Toyota Motor Corp

A control apparatus for an internal combustion engine is configured to: calculate measured data of MFB in synchrony with crank angle based on in-cylinder pressure detected by an in-cylinder pressure sensor; execute engine control based on a measured value of a specified fraction combustion point that is calculated based on the measured data of MFB; calculate a first correlation index value for MFB and a second correlation index value for dMFB/dθ; and suspend the engine control when the first correlation index value is less than a first determination value and the second correlation index value is greater than or equal to a second determination value.

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Номер записи: 35
12-01-2017 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20170009682A1
Автор: OGAWA Ken, OKUNISHI Shinichi
Принадлежит: HONDA MOTOR CO., LTD.

A control device includes a cylinder pressure sensor, a driving condition detector, a reference crank angle setter, a reference cylinder pressure calculator, an EGR ratio estimator, and a controller. The cylinder pressure sensor detects a cylinder pressure inside a cylinder. The driving condition detector detects a driving condition in an internal combustion engine. The reference crank angle setter calculates, according to the driving condition, a reference crank angle immediately before which mixture gas starts combusting. The reference cylinder pressure calculator calculates a reference cylinder pressure at the reference crank angle based on temperature characteristics of a heat capacity ratio of the mixture gas under a condition. The EGR ratio estimator calculates an EGR ratio based on a pressure difference between the reference cylinder pressure and the cylinder pressure at the reference crank angle. The controller controls the internal combustion engine according to the EGR ratio. 1. A control device for an internal combustion engine including an EGR device that , concurrently with direct injection of a fuel into a cylinder , recirculates a portion of an exhaust gas discharged to an exhaust passage from the cylinder back to an intake passage as an external EGR gas , the control device comprising:an in-cylinder pressure sensor that detects a pressure inside the cylinder as an in-cylinder pressure;a driving condition detector that detects a driving condition of the internal combustion engine;a reference crank angle setter that obtains a crank angle immediately before start of combustion of a mixture gas charged in the cylinder depending on the detected driving condition of the internal combustion engine, and sets the obtained crank angle as a reference crank angle;a reference in-cylinder pressure calculator that calculates, as a reference in-cylinder pressure, a pressure inside the cylinder expected to occur at the set reference crank angle, based on a ...

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Номер записи: 36
11-01-2018 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180010567A1
Автор: HIROOKA Hisato
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control device for an internal combustion engine is programmed, during a catalyst warm-up control, to perform first fuel injection by an injector in an intake stroke, control an ignition device so as to generate a discharge spark in a predetermined period in an expansion stroke, and perform second fuel injection, at a timing retarded from a compression top dead center, such that its injection period overlaps with at least a part of the predetermined period and an end timing of the injection period is advanced from an end timing of the predetermined period. Further, the control device is programmed, during the catalyst warm-up control, to control an actual tumble ratio depending on a result of determination using a first index value representing a speed of initial combustion accompanying an ignition by the ignition device and a second index value representing a speed of main combustion accompanying the ignition. 1. A control device for an internal combustion engine that includes:an ignition device arranged in a vicinity of a center of an upper part of a combustion chamber, and includes a spark plug for igniting an air-fuel mixture in a cylinder using a discharge spark;an injector arranged nearer to an intake valve than the spark plug in the vicinity of the center of the upper part of the combustion chamber, and includes one or more injection holes provided such that a contour surface of a fuel spray injected from the one or more injection holes toward the spark plug passes under an electrode portion of the spark plug;an in-cylinder pressure sensor configured to detect in-cylinder pressure; andan exhaust gas purification catalyst configured to purify exhaust gas from the combustion chamber,wherein a tumble flow that flows so as to go toward a side of an exhaust valve from a side of the intake valve in the upper part of the combustion chamber is generated in the combustion chamber of the internal combustion engine,wherein the control device comprises:a tumble flow ...

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Номер записи: 37
21-01-2016 дата публикации

SYSTEM AND METHOD FOR INIHIBITING ENGINE OPERATION DURING FUELING

Номер: US20160016468A1
Автор: Davison Mark, Franks Donald Charles, Lockwood John A., PALIC Jeffrey Alan, Scott Lisa, Stanek Joseph F.
Принадлежит:

A method according to an exemplary aspect of the present disclosure includes, among other things, inhibiting operation of an internal combustion engine of a vehicle based on a proximity of the vehicle to a fueling location. 1. A method , comprising:inhibiting operation of an internal combustion engine of a vehicle based on a proximity of the vehicle to a fueling location.2. The method as recited in claim 1 , further comprising:detecting whether the vehicle is at a fueling location, and inhibiting operation of the internal combustion engine when the vehicle is at the fueling location.3. The method as recited in claim 2 , wherein the detecting is based on information from at least one of (1) a global positioning system (GPS) claim 2 , (2) a wireless communication system claim 2 , or (3) a camera-based detection system.4. The method as recited in claim 1 , further comprising:detecting whether a fueling event is occurring, and inhibiting operation of the internal combustion engine when the fueling event is occurring.5. The method as recited in claim 4 , wherein detecting whether the fueling event is occurring further comprises at least one of (1) detecting a pressure within a fuel tank claim 4 , (2) detecting whether a door to a fuel tank is open claim 4 , or (3) detecting whether a fuel cap has been removed from the fuel tank.6. The method as recited in claim 4 , further comprising:detecting the power level of a battery of the vehicle during the fueling event; andturning off the vehicle if the power level falls below a lower threshold.7. The method as recited in claim 4 , further comprising:detecting the power level of a battery of the vehicle during the fueling event; andturning off an auxiliary component drawing power from the battery if the power level falls below a lower threshold.8. The method as recited in claim 4 , further comprising:detecting whether the vehicle is parked before the step of detecting whether a fueling event is occurring.9. The method as recited ...

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Номер записи: 38
21-01-2016 дата публикации

CONTROL APPARATUS FOR DIESEL ENGINE AND CONTROL METHOD FOR DIESEL ENGINE

Номер: US20160017836A1
Автор: HONMA Tetsuhara, NAKAMURA Toshiyuki, OKINAKA Manabu, Tanaka Takafumi
Принадлежит: NGK SPARK PLUG CO., LTD.

A control apparatus () controls a diesel engine (). A glow plug () which can detect cylinder pressure is provided on the engine (). An ECU () computes a parameter related to a change in cylinder pressure obtained from the glow plug (). The ECU () controls fuel injection timing such that the parameter falls within a target range when combustion in the engine () is switched from premixed combustion to diffusion combustion.

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Номер записи: 39
17-01-2019 дата публикации

IGNITION TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20190017451A1
Автор: HANAI Norihito, HOSOGI Takayuki, ITO Hisayuki, Kaneko Rihito, SENDA Kenji, SUNAGO Masaya, YAMAGUCHI Masaaki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An ignition timing control apparatus for an internal combustion engine includes an electronic control unit configured to i) perform determination as to whether knocking has occurred in the engine; ii) update a first learning value and a second learning value such that the ignition timing is retarded when determining that knocking has occurred; and iii) derive, as a required ignition timing, a timing obtained by retarding a base ignition timing based on the first and second learning values. The electronic control unit is configured to update the second learning value within a range in which an update amount of the second learning value within a prescribed period set in advance does not exceed a prescribed amount, when updating the second learning value.

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Номер записи: 40
17-01-2019 дата публикации

SYSTEMS AND METHODS FOR ENGINE CONTROL

Номер: US20190017455A1
Автор: Glugla Chris Paul
Принадлежит:

Methods and systems are provided for adjusting spark timing and fueling in an engine in response to an indication of exhaust gas recirculation (EGR) system degradation due to a disconnected upstream hose of an EGR differential pressure sensor. In one example, a method may include, responsive to an integrated knock intensity being greater than a threshold intensity and a fuel control correction being greater than a threshold enrichment, setting an EGR rate to zero and triggering an EGR differential pressure sensor upstream hose diagnostic routine to be performed. Further, spark timing and fueling may be set for zero EGR. 19-. (canceled)10. A method , comprising:while operating an engine with EGR, adjusting spark responsive to an indication of knock;responsive to the adjusted spark being retarded to a spark retard threshold, integrating knock sensor output over a number of engine cycles and determining a fuel control correction over the number of engine cycles; andindicating degradation of an EGR system responsive to one or more of the integrated output of the knock sensor being greater than a first threshold and the fuel control correction being greater than a second threshold.11. The method of claim 10 , wherein the fuel control correction includes a fuel enrichment required to maintain an exhaust air-fuel ratio (AFR) at a target AFR while operating the engine with the EGR.12. The method of claim 10 , wherein the first threshold is a threshold integrated knock intensity of the engine operating at borderline claim 10 , the first threshold based on a flow rate of the EGR and a knock history of the engine claim 10 , and the second threshold is a threshold fuel enrichment based on the flow rate of the EGR and a determined air charge.13. The method of claim 10 , further comprising claim 10 , in response to the indication of degradation of the EGR system claim 10 , operating the engine with no EGR while retarding spark timing and increasing a fuel injection amount claim ...

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Номер записи: 41
17-01-2019 дата публикации

SYSTEM AND METHOD FOR VALVE EVENT DETECTION AND CONTROL

Номер: US20190017487A1
Автор: Bizub Jeffey Jacob, Katta Rajesh, Rivellini Sandro, Rudnitzki Ryan Michael
Принадлежит:

In one embodiment, a system includes an engine control system configured to control an engine. The engine control system comprises a processor configured to receive a vibration signal sensed by a knock sensor disposed in an engine. The processor is further configured to correlate the vibration signal with a fingerprint having at least an ADSR envelope indicative of the operating event of a valve train of the combustion engine, analyze the vibration signal with a statistical valve train model, or a combination thereof. The processor is also configured to detect if the operating event has occurred based on correlating of the noise signal with the fingerprint, based on analyzing the vibration signal with a statistical valve train model, or a combination thereof, and to control the valve train based on the operating event.

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Номер записи: 42
28-01-2016 дата публикации

Adaptive Machine Learning Method To Predict And Control Engine Combustion

Номер: US20160025028A1
Автор: Vaughan Adam
Принадлежит:

A method is provided for controlling an internal combustion engine on a cycle-by-cycle basis. The method includes: maintaining training data used to identify a mapping function for the engine; populating a buffer with adaptive data for a given cylinder, where the adaptive data are measures of the inputs and the output of the mapping function that were captured during a number of recent operating cycles of the given cylinder; combining training data for the mapping function with the adaptive data; identifying the mapping function from the combined data set using a weighted least squares method; predicting a combustion feature of the given cylinder in the next cycle using the mapping function and measures of the inputs during the present cycle; and controlling the engine based in part on the predicted combustion feature of the given cylinder in the next cycle using one or more actuators. 1. A method for controlling an internal combustion engine on a cycle-by-cycle basis , comprising:(a) providing, by a controller, a mapping function which defines a relationship between inputs and an output associated with the internal combustion engine, where the output is a given combustion feature of a given cylinder in the engine at a next cycle and the inputs include the given combustion feature of the given cylinder in a present cycle and parameters indicative of mixture state and composition or engine actuator settings from one cycle to the next cycle;(b) maintaining, by the controller, training data used to identify the mapping function in a data store associated with the controller;(c) populating, by the controller, a buffer with adaptive data for the given cylinder, where the adaptive data are measures of the inputs and the output of the mapping function that were captured during a number of recent operating cycles of the given cylinder;(d) combining, by the controller, the training data with the adaptive data to form a combined data set;(e) identifying, by the controller, ...

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Номер записи: 43
28-01-2016 дата публикации

PREDICTIVE CORRECTION IN INTERNAL COMBUSTION ENGINES

Номер: US20160025060A1
Автор: Estefanous Fadi Adly Anis, Henein Naeim A., Mekhael Shenouda
Принадлежит:

A method and system for reducing cycle to cycle variation of an engine is provided. The system may determine fuel injection characteristics and predict a gas burning rate or flame speed based on the fuel injection characteristics. The system may adjust an ignition timing in response to the predicted gas burning rate within the same engine cycle. 1. A method for reducing cycle to cycle variation of an engine , the method comprising:determining fuel injection characteristics;predicting a gas burning rate or flame speed based on the fuel injection characteristics; andadjusting an ignition timing in response to the predicted gas burning rate within the same engine cycle.2. The method according to claim 1 , wherein the fuel injection characteristics are determined by at least a hall effect signal claim 1 , current probe signal claim 1 , needle lift sensor signal claim 1 , or fuel rate delivery sensor signal.3. The method according to or claim 1 , wherein the fuel injection characteristics include at least one or a combination of an amplitude claim 1 , length claim 1 , slope claim 1 , timing claim 1 , peak claim 1 , and/or profile.4. The method according to any of the previous claims claim 1 , wherein the gas burning rate or flame speed is determined by predicting flame arrival at one or multiple locations inside the combustion chamber such as a first ion current signal timing and a second ion current signal timing claim 1 , or a first optical sensor timing signal and a second optical sensor signal timing.5. The method according to claim 4 , wherein the gas burning rate is determined by comparing a timing of at least one of a start claim 4 , end claim 4 , peak claim 4 , or centroid of the first ion current signal to a timing for at least one of a start claim 4 , end claim 4 , peak claim 4 , or centroid of the second ion current signal.6. A method for predicting knock in an engine claim 4 , the method comprising:sensing combustion at multiple locations inside the cylinder ...

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Номер записи: 44
26-01-2017 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20170022911A1
Автор: KITAGAWA Eiki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

Feedback control is executed based on a measured CA10 and a measured CA50 that are calculated based on measured data for MFB. The measured data is corrected in accordance with a pattern of a waveform of measured data for a heat release amount, and measured data for MFB is calculated. A correlation index value showing a degree of correlation between the calculated measured data for MFB and reference data corresponding thereto is calculated. If the correlation index value is less than a determination value, control is performed to prohibit reflection in the aforementioned feedback control of each of the measured CA10 and the measured CA50 which are measured in the combustion cycle in which the relevant correlation index value is calculated. 1. A control device for an internal combustion engine , comprising:an in-cylinder pressure sensor that is configured to detect an in-cylinder pressure;a crank angle sensor that is configured to detect a crank angle; anda control unit that is configured to:calculate measured data for mass fraction burned that is synchronized with a crank angle, based on an in-cylinder pressure that is detected by the in-cylinder pressure sensor and a crank angle that is detected by the crank angle sensor;execute engine control in which a measured value at a specified fraction combustion point that is a crank angle at a time that mass fraction burned becomes a specified fraction is calculated based on measured data for mass fraction burned and an actuator of the internal combustion engine is controlled based on the measured value at the specified fraction combustion point;calculate a correlation index value showing a degree of correlation between the measured data for mass fraction burned and reference data for mass fraction burned which is based on operating conditions of the internal combustion engine; andprior to calculate the correlation index value, correct the measured data for mass fraction burned in a crank angle period that is after a ...

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Номер записи: 45
26-01-2017 дата публикации

CONTROL DEVICE

Номер: US20170022914A1
Автор: KUROTANI Tadashi, KUZUOKA Kohei, SHIGETOYO Kenji
Принадлежит: HONDA MOTOR CO., LTD.

A control device includes first and second level ratio calculators and an adjuster. The first level ratio calculator calculates a first level ratio of an amount of a first fuel stored in a first tank to a full tank capacity of the first tank. The second level ratio calculator calculates a second level ratio of an amount of a second fuel stored in a second tank to a full tank capacity of the second tank. An octane number of the second fuel is higher than an octane number of the first fuel. The adjuster adjusts a first fuel ratio of the first fuel in a supplied fuel which is supplied to an internal combustion engine and a second fuel ratio of the second fuel in the supplied fuel such that a deviation ratio of the first level ratio and the second level ratio is within a predetermined range. 1. A control device for an internal combustion engine in which a first fuel stored in a first tank and a second fuel whose octane number is higher than an octane number of the first fuel , the second fuel stored in a second tank , are used in combination , the control device comprising:a first level ratio obtaining unit that obtains a first level ratio which is a ratio of a level of the first fuel to a predetermined full tank capacity of the first tank;a second level ratio obtaining unit that obtains a second level ratio which is a ratio of a level of the second fuel to a predetermined full tank capacity of the second tank; andan adjusting unit that adjusts a first fuel ratio which is a ratio of the first fuel in a fuel which is supplied to the internal combustion engine and a second fuel ratio which is a ratio of the second fuel in the fuel which is supplied to the internal combustion engine, whereinthe adjusting unit adjusts the first and second fuel ratios such that a degree of deviation, from one of the first and second level ratios, of another of the first and second level ratios falls within a predetermined range.2. The control device according to claim 1 , whereinthe degree ...

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Номер записи: 46
17-04-2014 дата публикации

VEHICLE CONTROL APPARATUS

Номер: US20140107907A1
Автор: Kodama Shinya, Minase Yuki, Ohabayashi Motonari, Takagi Masashi, Takagi Toshihiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A vehicle is equipped with an auxiliary that is driven by the output of an internal combustion engine and which is capable of obtaining drive force by transmitting the output of the internal combustion engine to driving wheels. If an air conditioning compressor is being driven during engine idling of the internal combustion engine, an electronic control apparatus implements output-increase control for increasing the output of the internal combustion engine in comparison to when the air conditioning compressor is not being driven. If the force applied to the accelerator pedal (Pac) is equal to or more than a prescribed value (Pth), output-reduction control for reducing the output of the internal combustion engine by initiating engine idling of the internal combustion engine, and prohibiting the drive of the air conditioning compressor, is implemented. 1. A control apparatus used in a vehicle that obtains a drive force by transmitting output of an internal combustion engine to a drive wheel and includes an auxiliary device operated by the output of the engine ,wherein the control apparatus performs output increasing control to increase the output of the engine when the auxiliary device is in operation compared to when the auxiliary device is not in operation,the control apparatus being adapted to carry out output decreasing control to decrease the output of the engine and restrict operation of the auxiliary device when an accelerator operating force is greater than or equal to a predetermined value or when an accelerator operating acceleration is greater than or equal to a predetermined value.2. The apparatus according to wherein the restriction on operation of the auxiliary device is carried out to prohibit the operation of the auxiliary device.34-. (canceled) This application is a National Stage of International Application No. PCT/JP2011/065269 filed Jul. 4, 2011, the contents of all of which are incorporated herein by reference in their entirety.The present ...

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Номер записи: 47
24-01-2019 дата публикации

SMOKE AMOUNT ESTIMATION DEVICE AND COMBUSTION SYSTEM CONTROL DEVICE

Номер: US20190024597A1
Автор: Hoshi Shinya, OKABAYASHI Atsunori
Принадлежит:

A smoke amount estimation device includes a component amount acquisition unit and an estimation unit. The component amount acquisition unit acquires the amount of aromatic components contained in a fuel to be used for the combustion of an internal combustion engine, and acquires the amount of aromatic variable components that are components that decompose and polymerize before combustion to form aromatic components among components contained in the fuel. The estimation unit estimates the amount of smoke contained in the exhaust gas discharged from the internal combustion engine based on the amount of aromatic components and the amount of aromatic variable components acquired by the component amount acquisition unit. 1. A smoke amount estimation device comprising:a component amount acquisition unit that acquires an amount of aromatic components contained in a fuel to be used for combustion of an internal combustion engine, and acquires an amount of aromatic variable components that are components that decompose and polymerize before combustion to form aromatic components among components contained in the fuel; andan estimation unit that estimates an amount of smoke contained in exhaust gas discharged from the internal combustion engine based on the amount of aromatic components and the amount of aromatic variable components acquired by the component amount acquisition unit.2. The smoke amount estimation device according to claim 1 , whereinat least naphthene components are contained in the aromatic variable components whose amount is to be acquired by the component amount acquisition unit.3. The smoke amount estimation device according to claim 2 , whereinat least naphthene components, each having a structure having two or more of cyclic structures, are contained in the naphthene components whose amount is to be acquired by the component amount acquisition unit.4. The smoke amount estimation device according to claim 1 , whereinat least isoparaffin components are ...

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Номер записи: 48
24-04-2014 дата публикации

VEHICULAR POWER SOURCE CONTROL APPARATUS

Номер: US20140114539A1
Автор: Ando Yasuto, Nada Toru, NONOYAMA Yuji
Принадлежит: Denso Corporation

A vehicular power source control apparatus includes: two detection devices selected from a door open and close detection device, a seating detection device, a belt detection device, a gripping detection device, a brake detection device, or a shift lever position detection device; and a power source control device to turn on the power source when a power source turn-on condition provided by two predetermined detection results is established. The two predetermined detection results are selected from detection results that the door is closed, the driver sits down on the driver seat, the driver fastens the seat belt, the driver grips the steering wheel, the driver puts on the brake pedal, or the shift lever position of the vehicle is a parking position or a neutral position. 1. A vehicular power source control apparatus mounted on a vehicle and controlling a power source of the vehicle comprising:at least two detection devices selected from a door open and close detection device for detecting whether a door of the vehicle is opened or closed, a seating detection device for detecting whether a driver of the vehicle sits down on a driver seat, a belt detection device for detecting whether the driver fastens a seat belt, a gripping detection device for detecting whether the driver grips a steering wheel, a brake detection device for detecting whether the driver puts on a brake pedal, or a shift lever position detection device for detecting a shift lever position of the vehicle; anda power source control device for controlling the power source to turn on when a power source turn-on condition is established, wherein:the power source turn-on condition is provided by a combination of at least two predetermined detection results, which correspond to the at least two detection devices; andthe at least two predetermined detection results of the power source turn-on condition are selected from a detection result of the door open and close detection device such that the door is ...

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Номер записи: 49
02-02-2017 дата публикации

CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20170030283A1
Автор: SASAKI Keisuke
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control apparatus for an internal combustion engine is configured to: calculate measured data of MFB using an output signal of an in-cylinder pressure sensor after performing a first low-pass filtering; execute engine control based on the measured value of a specified fraction combustion point that is calculated based on the measured data of MFB; and prohibit the engine control when the first correlation index value is less than a first determination value and a first correlation degree is lower than a first degree. 1. A control apparatus for an internal combustion engine , comprising:an in-cylinder pressure sensor configured to detect an in-cylinder pressure;a crank angle sensor configured to detect a crank angle; anda controller, the controller being programmed to:(a) perform, with respect to an output signal of the in-cylinder pressure sensor, a first low-pass filtering that attenuates frequency components that is higher than a first cut-off frequency;(b) calculate first measured data of mass fraction burned that is synchronized with crank angle, based on an output signal of the in-cylinder pressure sensor after performing the first low-pass filtering and a crank angle detected by the crank angle sensor;(c) calculate second measured data of mass fraction burned that is synchronized with crank angle, based on an output signal of the in-cylinder pressure sensor before performing the first low-pass filtering and a crank angle detected by the crank angle sensor;(d) calculate, based on the first measured data or the second measured data, a measured value of a specified fraction combustion point that is a crank angle at which mass fraction burned reaches a specified fraction, and execute engine control that controls an actuator of the internal combustion engine based on the measured value of the specified fraction combustion point;(e) calculate a first correlation index value that indicates a degree of correlation between the first measured data and reference data of ...

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Номер записи: 50
04-02-2016 дата публикации

COMBUSTION CONTROL DEVICE FOR GAS ENGINE

Номер: US20160032847A1
Автор: Nishio Hideki, Suzuki Hajime
Принадлежит:

An object is to prevent an engine from entering an unstable combustion state such as misfire upon recovery, by halting or reducing gas fuel for a cylinder in which knocking is occurring, and then increasing the gas fuel again to appropriately perform a recovery control upon recovery to the optimum operation. A combustion control device for a gas engine includes: a knocking determination unit configured to determine occurrence of knocking of each of cylinders; a knocking reduction unit configured to halt or reduce supply of gas fuel to a cylinder in which the knocking is occurring and reduce supply of the gas fuel to other cylinders in which the knocking is not occurring; a first recovery unit configured to recover a state where the gas fuel is halted or reduced in the cylinder in which the knocking is occurring; and a second recovery unit configured to recover a state where the gas fuel is reduced in the other cylinders which are not the cylinder in which the knocking is occurring. A recovery time of the first recovery unit is shorter than a recovery time of the second recovery unit and recovery of the cylinder in which the knocking is occurring is performed as a priority. 1. A combustion control device for a gas engine , comprising:a knocking determination unit configured to determine occurrence of knocking of each of cylinders;a knocking reduction unit configured to halt or reduce supply of gas fuel to a cylinder in which the knocking is occurring and reduce supply of the gas fuel to other cylinders in which the knocking is not occurring, when the occurrence of the knocking is determined by the knocking occurrence determination unit;a first recovery unit configured to recover a state where the gas fuel is halted or reduced in the cylinder in which the knocking is occurring, when it is determined that the knocking is not occurring after the halt or reduction; anda second recovery unit configured to recover a state where the gas fuel is reduced in the other ...

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Номер записи: 51
04-02-2016 дата публикации

ENGINE CONTROL STRATEGY AND FEEDBACK SYSTEM

Номер: US20160032855A1
Автор: Andersson Martin N., Swanson Mark S.
Принадлежит:

In at least some implementations, an engine control process includes an engine speed test and other steps. The engine speed test includes the steps of a) determining a first engine speed, b) changing the air/fuel ratio of a fuel mixture delivered to the engine, and c) determining a second engine speed after at least some of the air/fuel ratio changing event, Based at least in part on the difference between the first engine speed and the second engine speed it is determined if a change in the air/fuel ratio of the fuel mixture delivered to the engine is needed. If a change to the air/fuel ratio was indicated, the air/fuel ratio of a fuel mixture delivered to the engine is changed, 1. An engine control process , comprising: a) determining a first engine speed;', 'b) changing the air/fuel ratio of a fuel mixture delivered to the engine;', 'c) determining a second engine speed after at least some of the air/fuel ratio changing event;, 'conducting an engine speed test including the steps ofdetermining if a change in the air/fuel ratio of the fuel mixture delivered to the engine is needed based at least in part on the difference between the first engine speed and the second engine speed; andchanging the air/fuel ratio of a fuel mixture delivered to the engine if a change to the air/fuel ratio was indicated.2. The process of wherein to be used in a determination for a change in air/fuel ratio claim 1 , the difference between the first engine speed and second engine speed must be greater than a minimum threshold.3. The process of wherein to be used in a determination for a change in air/fuel ratio claim 1 , the difference between the first engine speed and second engine speed must be less than a maximum threshold.4. The process of wherein to be used in a determination for a change in air/fuel ratio claim 1 , the difference between the first engine speed and second engine speed must be both greater than a minimum threshold and less than a maximum threshold.5. The process of ...

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Номер записи: 52
01-02-2018 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180030909A1
Автор: KITAGAWA Eiki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control device for an internal combustion engine includes an in-cylinder pressure sensor, a crank angle sensor, and an electronic control unit. The electronic control unit is configured to calculate a correlation index value showing a degree of a correlation between a actually measured data of a combustion mass ratio and reference data of the combustion mass ratio based on an operating condition of the internal combustion engine. The electronic control unit is configured to, in a case where the correlation index value is lower than a determination value, prohibit the actually measured value of the specific ratio combustion point pertaining to a combustion cycle in which the correlation index value is calculated from being reflected in the engine control or reduce a degree of the reflection in the engine control compared to a case where the correlation index value is equal to or higher than the determination value. 1. A control device for an internal combustion engine comprising:an in-cylinder pressure sensor configured to detect an in-cylinder pressure of the internal combustion engine;a crank angle sensor configured to detect a crank angle of the internal combustion engine; andan electronic control unit configured to calculate actually measured data of a combustion mass ratio synchronized with the crank angle based on the in-cylinder pressure detected by the in-cylinder pressure sensor and the crank angle detected by the crank angle sensor, the electronic control unit being configured to calculate an actually measured value of a specific ratio combustion point as the crank angle at which the combustion mass ratio reaches a specific ratio based on the actually measured data of the combustion mass ratio, the electronic control unit being configured to execute an engine control for controlling an actuator of the internal combustion engine based on the actually measured value of the specific ratio combustion point, the electronic control unit being configured to ...

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Номер записи: 53
05-02-2015 дата публикации

INTERNAL COMBUSTION ENGINE FITTED WITH COMBUSTION PRESSURE DETECTION DEVICE

Номер: US20150034039A1
Автор: Misaizu Tsuyoshi, Soga Yoshihiko, TAKAHASHI Kazuo
Принадлежит:

An internal combustion engine fitted with a combustion pressure detection device includes: an internal combustion engine having a combustion chamber, a pressure detection device having a housing, a diaphragm, and a detection member, and having a shoulder part. The diaphragm is provided on the front end side of the housing and the detection member arranged inside the housing and behind the diaphragm, allowing it to detect the pressure working via the diaphragm. Also provided is a second seal member in a ring shape that seals the opening in the combustion chamber and the housing in the shoulder part of the housing in the pressure detection device. 18-. (canceled)9. An internal combustion engine fitted with a combustion pressure detection device , comprising:an internal combustion engine including a combustion chamber and an opening formed on a wall surface constituting the combustion chamber, the opening connecting to the combustion chamber and having a wider diameter on a near side than on a far side thereof;a combustion pressure detection device including: a housing having a cylindrical shape that is insertable into the opening of the internal combustion engine, the housing being narrower on a front end side thereof in an insertion direction in accordance with the diameter of the opening on the far side, and being wider on a rear end side thereof in accordance with the diameter of the opening on the near side, and the housing having a shoulder part between the front end side and the rear end side thereof; a diaphragm provided on the front end side of the housing in the insertion direction; and a detection member arranged inside the housing and behind the diaphragm, and detecting the pressure working via the diaphragm; anda seal member in a ring shape that has a cross section in an opening shape, the seal member sealing the opening in the combustion chamber and the housing at the shoulder part of the housing in the combustion pressure detection device, whereinthe ...

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Номер записи: 54
31-01-2019 дата публикации

Dual-fuel combustion engine

Номер: US20190032582A1
Автор: Dino Imhof, Georg Tinschmann, Michael Hillebrecht
Принадлежит: Innio Jenbacher GmbH and Co OG

A dual-fuel internal combustion engine with at least one combustion chamber, wherein the at least one combustion chamber is assigned to an intake valve for a gas-air mixture and an injector (I1 to I4) for liquid fuel, and a control device, which is designed in a switch-over mode to perform a switch-over, that an amount of energy supplied to the at least one combustion chamber through the gas-air mixture is changed, and a supplied amount of liquid fuel and/or a time of the injection of the liquid fuel is changed, and a combustion sensor whose signals are characteristic for the combustion process occurring in the at least one combustion chamber, wherein the control device is designed to carry out the switch-over using a stored relationship between a time progression of the signals of the combustion sensor and an introduced amount of gas-air mixture.

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Номер записи: 55
09-02-2017 дата публикации

CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20170037791A1
Автор: KITAGAWA Eiki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A control apparatus for an internal combustion engine is configured to: calculate measured data of MFB based on in-cylinder pressure detected by an in-cylinder pressure sensor; execute engine control based on a measured value of a specified fraction combustion point that is calculated based on the measured data of MFB; and calculate a first correlation index value for the measured data (current data) and the reference data of MFB and a second correlation index value for the current data and the immediately preceding past data. The engine control is suspended that uses the measured data of the specified fraction combustion point based on the current data when both of the first correlation index value and the second correlation index value are less than a determination value. 1. A control apparatus for an internal combustion engine , comprising:an in-cylinder pressure sensor configured to detect an in-cylinder pressure;a crank angle sensor configured to detect a crank angle; anda controller, the controller being programmed to:(a) calculate measured data of mass fraction burned that is synchronized with crank angle, based on an in-cylinder pressure detected by the in-cylinder pressure sensor and a crank angle detected by the crank angle sensor;(b) calculate, based on the measured data of mass fraction burned, a measured value of a specified fraction combustion point that is a crank angle at which mass fraction burned reaches a specified fraction, and to execute engine control that controls an actuator of the internal combustion engine based on the measured value of the specified fraction combustion point;(c) calculate a first correlation index value that indicates a degree of correlation between current data of the measured data of mass fraction burned and reference data of mass fraction burned, the reference data of mass fraction burned being based on an operating condition of the internal combustion engine;(d) calculate a second correlation index value that indicates ...

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Номер записи: 56
09-02-2017 дата публикации

HEAT GENERATION RATE WAVEFORM CALCULATION DEVICE OF INTERNAL COMBUSTION ENGINE AND METHOD FOR CALCULATING HEAT GENERATION RATE WAVEFORM

Номер: US20170037792A1
Автор: IMAEDA Munenori
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A heat generation rate waveform of an internal combustion engine. A period from spark generated by an ignition plug to ignition of an air-fuel mixture is defined as an ignition delay period τ that is one of characteristic values of the heat generation rate waveform. When the ignition time FA of the air-fuel mixture is on the advance side of a compression top dead center of a piston (BTDC), the ignition delay period τ is estimated based on an in-cylinder fuel density ρat the spark time SA, and when the ignition time FA of the air-fuel mixture is on the delay side of the compression top dead center of the piston (ATDC), the ignition delay period τ is estimated based on an in-cylinder fuel density ρat the ignition time FA. Thus, the heat generation rate waveform is produced using the estimated ignition delay period τ. 1. A heat generation rate waveform calculation device of an internal combustion engine , the device being configured to calculate a heat generation rate waveform of a spark-ignition internal combustion engine ,wherein a period from spark generated by an ignition plug to ignition of an air-fuel mixture is defined as an ignition delay period that is one of characteristic values of the heat generation rate waveform,wherein, when the ignition time of the air-fuel mixture is on an advance side of a compression top dead center of a piston, the ignition delay period is estimated based on an in-cylinder fuel density at the spark time, and when the ignition time of the air-fuel mixture is on a delay side of the compression top dead center of the piston, the ignition delay period is estimated based on an in-cylinder fuel density at the ignition time, andwherein the heat generation rate waveform is calculated using the estimated ignition delay period.2. The heat generation rate waveform calculation device of an internal combustion engine according to claim 1 ,wherein the ignition delay period is calculated by being multiplied by a correction coefficient based on an ...

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Номер записи: 57
08-02-2018 дата публикации

Control system for internal combustion engine

Номер: US20180038297A1
Автор: Akira Eiraku, Keisuke Sasaki, Masanori Hattori, Shinichi Hiraoka, Teppei YOSHIOKA, Yoshiyuki Kageura
Принадлежит: Toyota Motor Corp

A control system is applied to an internal combustion engine having a plurality of cylinders, a variable compression ratio changer configured to change the compression ratio of each of the cylinders of the internal combustion engine individually, in-cylinder injection valves that inject fuel into the respective cylinders, and in-passage injection valves each of which injects fuel into an intake passage corresponding to each of the cylinders. To reduce differences in the air-fuel ratio among the cylinders during changing the compression ratio, the control system makes the proportion of the quantity of fuel injected through the in-passage injection valves to the total quantity of fuel injected through the in-cylinder injection valves and the in-passage injection valves larger during the time in which the compression ratios of all the cylinders are being changed than during the time in which the compression ratios of all the cylinders are fixed.

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Номер записи: 58
08-02-2018 дата публикации

METHODS AND SYSTEM FOR INJECTING WATER AT DIFFERENT GROUPS OF CYLINDERS OF AN ENGINE

Номер: US20180038300A1
Автор: Hakeem Mohannad, House Christopher, Shelby Michael Howard, Surnilla Gopichandra, Ulrey Joseph Norman
Принадлежит:

Methods and systems are provided for adjusting an amount of water injected upstream of a group of cylinders based on a determined maldistribution of water among cylinders during a water injection event. In one example, a method may include injecting a first amount of water upstream of a first group of cylinders and a different, second amount of water upstream of a second group of cylinders based on operating conditions of the respective cylinder groups. Further, the method may include adjusting water injection and engine operating parameters in response the evaporated and/or condensed portion of water. 1. A method , comprising:injecting a first amount of water upstream of a first group of cylinders and a different, second amount of water upstream of a second group of cylinders, the first amount determined based on operating conditions of the first group and the second amount determined based on operating conditions of the second group.2. The method of claim 1 , further comprising determining a first portion of the first amount of water that vaporized based on a change in temperature upstream of the first group of cylinders following the injecting the first amount of water and determining a second portion of the first amount of water that remained liquid based on the injected first amount of water and the determined first portion of the first amount of water.3. The method of claim 2 , further comprising determining a first portion of the second amount of water that vaporized based on a change in temperature upstream of the second group of cylinders following the injecting the second amount of water and determining a second portion of the second amount of water that remained liquid based on the injected second amount of water and the determined first portion of the second amount of water.4. The method of claim 3 , further comprising adjusting the determined first portion and second portion of the first amount of water based on the determined first portion and second ...

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Номер записи: 59
07-02-2019 дата публикации

Pressure-Based Detection of Poor Fire and Misfire

Номер: US20190040805A1
Автор: Barta Jason, Hampson Gregory James
Принадлежит:

An apparatus for monitoring combustion and/or controlling operation of an internal combustion engine includes a processor to receive input from a crank angle sensor and a combustion chamber pressure sensor. The processor receives a first pressure signal during a first volume during the compression phase and a second pressure signal during a second volume corresponding to a portion of expansion phase, where volumes are equal or equivalent. The processor determines an indication of combustion quality of each combustion event, such as poor fire or misfire, based on a comparison of the difference between the first and second pressures to a threshold value associated with each volume. 1. An apparatus for monitoring and/or controlling operation of an internal combustion engine , the engine comprising a body sealed in a combustion chamber , the body being moveable to a center position to compress gas in a compression phase and movable from the center position by expanding combustion gasses in an expansion phase , and the apparatus comprising: receive a pressure signal from the combustion chamber pressure sensor during a first range of volumes, the first range corresponding to a portion of the compression phase, the received pressure being a first pressure;', 'receive the pressure signal during a second range of volumes, the second range corresponding to a portion of the expansion phase where the thermodynamic volume is equal to the first range of volumes, the received pressure being a second pressure;', 'determine an indication of combustion quality of a combustion event in the combustion chamber based on a comparison of the difference between of the first and second pressures to a threshold value; and', 'adjust an operational parameter of the internal combustion engine based on the indication of combustion quality., 'a processor to receive input from a position sensor configured to sense a position of the body and from a combustion chamber pressure sensor, the processor ...

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Номер записи: 60
06-02-2020 дата публикации

Vehicle Power Output Control Method, Apparatus and System

Номер: US20200040826A1
Автор: HAN Lingtao, HUANG Ted, REN Qiang, S, XU WEI, ZHENG Chunyun
Принадлежит:

A vehicle power output control method, apparatus and system are provided. The method includes: collecting an image of a road surface on which a vehicle drives currently, and recognizing, according to the image of the road surface, the type of the road surface on which the vehicle drives currently; starting, according to the current type of the road surface, a terrain mode corresponding to an all-terrain adaptive mode; determining, in the terrain mode, a power output strategy corresponding to the current terrain mode; and adjusting an output torque of an engine according to a power output curve corresponding to the current power output strategy, the power output curve being a function curve using a stepping depth of an accelerator pedal as a variable and the output torque of the engine as an output. The method facilitates outputting an adaptive power by an engine when a vehicle drives on different road surfaces. 1. A vehicle power output control method , comprising:collecting an image of a road surface on which a vehicle drives currently, and recognizing the type of the road surface on which the vehicle drives currently according to the image of the road surface;starting a terrain mode corresponding to an all-terrain adaptive mode according to the current type of the road surface; determining a power output strategy corresponding to the current terrain mode according to a correspondence between a terrain mode and a preset power output strategy, the terrain mode in the all-terrain adaptive mode comprising at least two of a common terrain mode, a snow mode, a mud mode, and a sand mode; andadjusting an output torque of an engine according to a power output curve corresponding to the current power output strategy, the power output curve being a function curve using a stepping depth of an accelerator pedal as a variable and the output torque of the engine as an output.2. The vehicle power output control method as claimed in claim 1 , further comprising:presetting at least ...

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Номер записи: 61
15-02-2018 дата публикации

METHOD AND APPARATUS FOR CONTROLLING OPERATION OF AN INTERNAL COMBUSTION ENGINE

Номер: US20180045126A1
Автор: HE Yongsheng, LIU Jim, SHIBATA Jonathan T., Sun David
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

An internal combustion engine includes a method for operating including, determining, using an accelerator pedal position sensor, an operator request for power and determining an engine operating point based upon the operator request for power. A motored-cylinder temperature is determined based upon the engine operating point, and a knock-limited combustion phasing point is determined based upon the motored-cylinder temperature and the engine operating point. Engine operating parameters associated with achieving the knock-limited combustion phasing point are selected. Operation includes controlling, by a controller, engine control states in response to the engine operating parameters associated with achieving the knock-limited combustion phasing point and the operator request for power. 1. A method for operating an internal combustion engine , the method comprising:determining, using an accelerator pedal position sensor, an operator request for power;determining an engine operating point based upon the operator request for power;determining a motored-cylinder temperature based upon the engine operating point;determining a knock-limited combustion phasing point based upon the motored-cylinder temperature and the engine operating point;selecting engine operating parameters associated with achieving the knock-limited combustion phasing point; andcontrolling, by a controller, engine control states in response to the engine operating parameters associated with achieving the knock-limited combustion phasing point and the operator request for power.2. The method of claim 1 , wherein determining a motored-cylinder temperature based upon the engine operating point comprises determining an in-cylinder compression temperature at a predetermined engine crank angle immediately prior to combustion ignition.3. The method of claim 1 , wherein determining a knock-limited combustion phasing point based upon the motored-cylinder temperature and the engine operating point comprises ...

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Номер записи: 62
26-02-2015 дата публикации

METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

Номер: US20150053179A1
Автор: Baqasse Brahim, Beyrath Thiebaut, Bischoff Bjoern, Bollinger Stefan, Hernier Markus, SCHULZ Udo, Walter Michael
Принадлежит:

A method for controlling an internal combustion engine includes: using the pressure sensor method, determining for a first injector a first control period during which a desired quantity of fuel is injected into a lead cylinder; controlling the first injector with the first control period and entering a quantity replacement signal resulting therefrom into a training characteristic field as a function of the drive train parameters; and using null quantity calibration, varying for all further cylinders a control period of the injectors assigned to the cylinders until the quantity replacement signal is reached.

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Номер записи: 63
25-02-2016 дата публикации

SYSTEM AND METHOD FOR PREVENTING UNAUTHORIZED MODIFICATION TO ENGINE CONTROL SOFTWARE OR AN ENGINE CONTROL SYSTEM

Номер: US20160053696A1
Автор: Hall Cullen Evan, Lucht Erich Albert, MCGINLEY Gary, TURNQUIST Michael Dean, VANOUS Michael James
Принадлежит:

A system and method for preventing unauthorized modification to engine control software or an engine control system of, for example, a refrigerated transport application is provided. Particularly, the embodiments described herein prevent unauthorized parties from inadvertently or intentionally making changes to the engine control software used for controlling the engine or the engine control system that could, for example, potentially bypass emission strategies implemented in the refrigerated transport application. Accordingly, emission strategies such as, for example, EPA Tier IV not-to-exceed (“NTE”) regulations can be maintained. 1. An engine control system comprising:a power unit that includes an engine; anda controller configured to activate the engine via an engine activation signal and control the engine using an engine control software, the controller including a relay connected to the power unit,wherein the controller is configured to detect an unauthorized modification event, andwherein the relay is configured to prevent the engine activation signal from passing to the power unit when the controller detects an unauthorized modification event.2. The engine control system of claim 1 , wherein the unauthorized modification event is an unauthorized modification to the engine control software.3. The engine control system of claim 1 , wherein the unauthorized modification event is an unauthorized modification to the engine control system.4. The engine control system of claim 1 , wherein the power unit includes a stop solenoid claim 1 , the relay is connected to the stop solenoid claim 1 , and the relay is configured to send the engine activation signal to the stop solenoid when the controller does not detect an unauthorized modification event.5. The engine control system of claim 1 , wherein the controller includes a circuit board connected to the relay claim 1 , the circuit board being configured to send an engine implementation signal to the relay when the ...

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Номер записи: 64
25-02-2016 дата публикации

METHOD FOR AVOIDING PRE-IGNITIONS DURING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE

Номер: US20160053703A1
Автор: Van den Bergh Ruben Emiel
Принадлежит:

A method for avoiding pre-ignitions during the operation of an internal combustion engine includes measuring a noise level of a combustion process using an acceleration sensor. An amplitude an amplitude of the measured noise level is measured to detect pre-ignitions. If, in the analysis, the measured noise level of a combustion cycle exceeds a limiting value n times, a safety operating mode of the internal combustion engine for reducing an effecting compression in the combustion chamber is activated. The safety operating mode is maintained if exceeding of the amplitude limiting value is also detected in subsequent combustion cycles of the internal combustion engine. 1. A method for avoiding pre-ignitions during the operation of an internal combustion engine , the method comprising:measuring a noise level of a combustion process using an acceleration sensor;analyzing an amplitude of the measured noise level to detect pre-ignitions;activating a safety operating mode of the internal combustion engine for reducing an effective compression in a combustion chamber of the internal combustion engine on a sustained basis if, in the analysis, the measured noise level of a combustion cycle exceeds a limiting value n times; andmaintaining the safety operating mode activated if exceeding of the amplitude limiting value is also detected in subsequent combustion cycles of the internal combustion engine.2. The method as claimed in claim 1 , further comprising modifying an inlet timing of an inlet valve of the internal combustion engine in order to reduce the effective compression in the safety operating mode.3. The method as claimed in claim 1 , wherein claim 1 , in the safety operating mode claim 1 , the inlet timing is modified in such a way that a closing point of the inlet valve is retarded.4. The method as claimed in claim 1 , wherein an exhaust timing of an exhaust valve of the internal combustion engine is furthermore modified in the safety operating mode.5. The method as ...

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Номер записи: 65
25-02-2021 дата публикации

METHODS AND SYSTEM FOR DIAGNOSING FUEL INJECTORS OF AN ENGINE

Номер: US20210054804A1
Автор: NAIR Shailesh, Ottikkutti Pradheepram
Принадлежит:

Various methods and systems are provided for diagnosing a condition of a fuel injector of an engine. In one example, a method for an engine includes injecting a first pulse of fuel as a first pilot injection into a first subset of cylinders of a plurality of engine cylinders, where the first pilot injection precedes a primary injection of fuel into the first subset of cylinders by a duration; correlating a first response in an engine operating parameter to the first pilot injection; and adjusting the primary injection of fuel into the first subset of cylinders based on the first response. In one example, the first pilot injection precedes the primary injection by a predefined short duration and the primary injection of fuel is adjusted within a predefined or preset upper limit and lower limit. 116-. (canceled)17. A system for an engine , comprising:a plurality of engine cylinders including at least a first cylinder and a second cylinder;a first fuel injector coupled to the first cylinder;a second fuel injector coupled to the second cylinder; and during a first engine cycle, control injection of a primary pulse of fuel into the first cylinder via the first fuel injector and the second cylinder via the second fuel injector and injection of a pilot pulse of fuel, before the primary pulse, into only the first cylinder via the first fuel injector;', 'correlate a first response in an engine operating parameter to injection of the pilot pulse of fuel into the first cylinder; and', 'during a second engine cycle, following the first engine cycle, adjust the primary pulse of fuel into the first cylinder based on the first response to the pilot pulse of fuel., 'a controller operatively coupled to the first and second fuel injectors and configured to18. The system of claim 17 , wherein the controller is further configured to:during a third engine cycle, control injection of the primary pulse of fuel into the first cylinder via the first fuel injector and the second cylinder via ...

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Номер записи: 66
01-03-2018 дата публикации

SYSTEM AND METHOD FOR ESTIMATING WHEN A PREDETERMINED PERCENTAGE OF FUEL IS BURNED IN A CYLINDER DURING AN ENGINE CYCLE USING PRINCIPAL COMPONENT ANALYSIS AND FOR CONTROLLING SPARK TIMING OF THE CYLINDER BASED ON THE PREDETERMINED PERCENTAGE

Номер: US20180058415A1
Автор: Kang Jun-Mo, Lin Hejie, MORGAN Jeffrey A.
Принадлежит:

A system according to the present disclosure includes a first crank angle module, a second crank angle module, and a spark control module. The first crank angle module determines a first crank angle of an engine at which a predetermined percentage of fuel in a first cylinder of the engine is combusted based on pressure in the first cylinder. The second crank angle module determines a relationship between the first crank angle and a second crank angle of the engine at which the predetermined percentage of fuel in a second cylinder of the engine is combusted based on pressure in the first cylinder and pressure in the second cylinder. The spark control module adjusts spark timing of the first cylinder based on the first crank angle, and adjusts spark timing of the second cylinder based on the relationship between the first and second crank angles. 1. A system comprising:a first crank angle module that determines a first crank angle of an engine at which a predetermined percentage of fuel in a first cylinder of the engine is combusted based on M pressures in the first cylinder; the second crank angle is a crank angle at which the predetermined percentage of fuel in the second cylinder is combusted; and', 'M and N are integers greater than one; and, 'a second crank angle module that determines whether a second crank angle of the engine is greater than or less than the first crank angle based on N pressures in the first cylinder and N pressures in a second cylinder of the engine, wherein adjusts spark timing of the first cylinder based on the first crank angle; and', 'adjusts spark timing of the second cylinder based on whether the second crank angle is greater than or less than the first crank angle., 'a spark control module that2. The system of wherein:the second crank angle module samples a first pressure signal at N crank angles during an engine cycle to obtain the N pressures in the second cylinder, wherein the first pressure signal indicates pressure in the first ...

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Номер записи: 67
02-03-2017 дата публикации

Determining the Amount of Energy Released in a Cylinder of an Internal Combustion Engine by Evaluating Tooth Timings of a Sensor Disc that is connected to a Crankshaft

Номер: US20170058802A1
Автор: Dirk Heinitz, Gerhard Eser
Принадлежит: Continental Automotive GmbH

A method for determining an amount of energy released in the working cycle of an internal combustion engine cylinder includes: (a) recording a time curve of the rotational speed of the engine crankshaft using tooth timings measured using a toothed sensor disc, (b) assigning each tooth timing to a working cycle of a selected cylinder, (c) determining a cylinder-specific average value from the tooth timings assigned to the selected cylinder, (d) determining cylinder-specific tooth timing deviations from the determined cylinder-specific average value, for the tooth timings assigned to each working cycle of the selected cylinder, (e) determining a cylinder-specific characteristic tooth timing by summing the determined tooth timing deviations, and (f) specifying the amount of energy released in the working cycle of the selected cylinder as a function of the determined cylinder-specific characteristic tooth timing, the amount of energy released being indirectly proportional to the determined cylinder-specific characteristic tooth timing.

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Номер записи: 68
02-03-2017 дата публикации

CONTROLLING APPARATUS FOR ENGINE

Номер: US20170058807A1
Автор: Hiraishi Fumiaki, NAKAMURA Nozomu, YAMASHITA Masayuki, YANAGAWA Kensuke
Принадлежит: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

A controlling apparatus for an engine, includes: an auto-ignition index calculating unit that is configured to calculate, based on a cylinder temperature and a cylinder pressure in a combustion chamber, an auto-ignition index which indicates easiness of occurrence of auto-ignition of fuel at a crank angle before an ignition timing in a compression stroke; a first correction coefficient calculating unit that is configured to calculate, based on an amount of fuel adhering to a wall surface of the combustion chamber at the crank angle, a wall-adhering fuel correction coefficient for correcting the auto-ignition index; and a low-speed pre-ignition predicting unit that is configured to predict, based on the auto-ignition index and the wall-adhering fuel correction coefficient, occurrence of low-speed pre-ignition. 1. A controlling apparatus for an engine , the engine that includes: a piston accommodated in a cylinder; an intake valve disposed in an opening of an intake passage which communicates with a combustion chamber of the cylinder; an exhaust valve disposed in an opening of an exhaust passage which is drawn out from the combustion chamber; a fuel injection valve which is configured to inject fuel into the combustion chamber or the intake passage; and an ignition unit disposed in the combustion chamber , the controlling apparatus comprising:an auto-ignition index calculating unit that is configured to calculate, based on a cylinder temperature and a cylinder pressure in a combustion chamber, an auto-ignition index which indicates easiness of occurrence of auto-ignition of fuel at a crank angle before an ignition timing in a compression stroke;a first correction coefficient calculating unit that is configured to calculate, based on an amount of fuel adhering to a wall surface of the combustion chamber at the crank angle, a wall-adhering fuel correction coefficient for correcting the auto-ignition index; anda low-speed pre-ignition predicting unit that is configured ...

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Номер записи: 69
20-02-2020 дата публикации

ENGINE MISFIRE MITIGATION

Номер: US20200056555A1
Автор: Charbonnel Sylvain
Принадлежит: CATERPILLAR INC.

An engine misfire mitigation system is disclosed. The engine misfire mitigation system may include a sensor system; a fuel system to provide fuel to the engine; and an engine control module to: estimate an air pressure of a combustion chamber of the engine based on measurements from the sensor system, determine a probability that a threshold amount of hydrocarbons are present in an exhaust system of the engine based on the air pressure of the combustion chamber, determine that a fuel injection pressure is to be adjusted based on the probability that the threshold amount of hydrocarbons are present in the exhaust system of the engine and the air pressure of the combustion chamber, and cause the fuel system to reduce the fuel injection pressure. 1. A method , comprising:identifying, by an engine control module, an operating condition of an engine; 'wherein the threshold amount of hydrocarbons corresponds to a likelihood that the engine may misfire;', 'determining, by the engine control module, a probability that a threshold amount of hydrocarbons are present in an exhaust system of the engine based on the operating condition,'}determining, by the engine control module, a fuel injection pressure amount based on the probability that the threshold amount of hydrocarbons are present in the exhaust system; and 'wherein the fuel is in a fuel system that provides fuel to the engine.', 'causing, by the engine control module, a fuel to be pressurized to the fuel injection pressure amount to substantially prevent the engine from misfiring,'}2. The method of claim 1 , wherein the operating condition comprise an air pressure in a combustion chamber of the engine.3. The method of claim 1 , wherein the operating condition comprise at least one of ambient temperature claim 1 , a current fuel injection pressure claim 1 , or an air intake pressure.4. The method of claim 1 , further comprising: 'wherein the fuel injection pressure amount is based on the air pressure in the combustion ...

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Номер записи: 70
04-03-2021 дата публикации

METHOD FOR THE DIAGNOSIS OF ENGINE MISFIRES IN AN INTERNAL COMBUSTION ENGINE

Номер: US20210063280A1
Автор: MILLICH Elmar, SHURKEWITSCH Andre, STERNBERG Heiko, Vogelsang Jan, WETTEN Robert, ZIMBALIST Nikolaus
Принадлежит: VOLKSWAGEN AKTIENGESELLSCHAFT

A method for the diagnosis of engine misfires in an internal combustion engine having at least one cylinder, and includes the steps of: Determining exhaust back pressure values of the individual cylinders over at least two working cycles, correlating the exhaust back pressure values with the camshaft position and/or the working cycle, determining the exhaust back pressure maxima and/or exhaust back pressure minima per working cycle, comparing the exhaust back pressure maxima and/or exhaust back pressure minima between the individual cylinders—in the case of multiple cylinders—and/or to maximum and/or minimum values from previous working cycles and determining the deviations, comparing the deviations to a predetermined threshold value. The invention also relates to a control device for carrying out the method and a motor vehicle including such a control device. 1. A method for the diagnosis of engine misfires in an internal combustion engine having at least one cylinder , the method comprising:determining exhaust back pressure values of the at least one cylinder over at least one working cycle;correlating the exhaust back pressure values with a camshaft position and/or the working cycle;determining an exhaust back pressure maxima and/or exhaust back pressure minima per working cycle;comparing the exhaust back pressure maxima and/or exhaust back pressure minima between individual cylinders, if there are multiple cylinders, and/or to maximum and/or minimum values from previous working cycles and determining deviations; andcomparing the deviations to a previously established threshold value.2. The method according to claim 1 , wherein the exhaust back pressure in the exhaust manifold is measured adjacent to the outlet valve using an exhaust back pressure sensor.3. The method according to claim 1 , wherein the method further comprises:measuring the exhaust back pressure;correlating measured values with the time and/or the camshaft position and/or the working cycle; ...

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Номер записи: 71
28-02-2019 дата публикации

Estimation device and control device for combustion system

Номер: US20190063356A1
Автор: Atsunori Okabayashi, Shinya Hoshi
Принадлежит: Denso Corp

An estimation device is applicable to a combustion system including an internal combustion engine. The estimation device includes a mixing acquisition unit, a combustion amount estimation unit, and a region estimation unit. The mixing acquisition unit acquires the mixing ratio of various components contained in the fuel used for combustion in the internal combustion engine. The combustion amount estimation unit estimates a main combustion amount of the fuel caused by a main combustion produced by injecting the fuel into a combustion chamber of the internal combustion engine with a main injection, based on the mixing ratio acquired by the mixing acquisition unit. The region estimation unit estimates a combustion region of the main combustion in the combustion chamber based on the mixing ratio acquired by the mixing acquisition unit.

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Номер записи: 72
10-03-2016 дата публикации

Method For Measuring Fresh Air By Evaluating An Internal Cylinder Pressure Signal

Номер: US20160069289A1
Автор: Knorr Bjoern, Schuele Harry
Принадлежит: Continental Automotive GmbH

A method for determining an air mass air in a cylinder of an internal combustion engine is disclosed. A first filling equivalent is determined during a compression phase of the cylinder, wherein the first filling equivalent corresponds to a first average pressure difference in a first angle range of a crank angle in the compression phase. A second filling equivalent is determined during an expansion phase of the cylinder, wherein the second filling equivalent corresponds to a second average pressure difference in a second angle range of the crank angle of the expansion phase. A differential filling equivalent is calculated by subtracting the first filling equivalent from the second filling equivalent. The air mass in the cylinder is determined based on the differential filling equivalent. 1. A method for determining an air mass in a cylinder of an internal combustion engine , the method comprising:determining a first filling equivalent during a compression phase of the cylinder,wherein the first filling equivalent corresponds to a first average pressure difference in a first angle range of a crank angle in the compression phase,determining a second filling equivalent during an expansion phase of the cylinder,wherein the second filling equivalent corresponds to a second average pressure difference in a second angle range of the crank angle of the expansion phase,forming a differential filling equivalent by subtracting the first filling equivalent from the second filling equivalent, anddetermining the air mass in the cylinder based on the differential filling equivalent.2. The method of claim 1 , wherein:the first angle range has a first angle interval from an ignition top dead center of the crank angle,the second angle range has a second angle interval from the ignition top dead center of the crank angle, andthe first angle interval is of the same size as the second angle interval.3. The method of claim 1 , wherein the first angle range is the same size as the second ...

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Номер записи: 73
08-03-2018 дата публикации

Control Device for Internal Combustion Engine and Abnormal Combustion Detecting Method

Номер: US20180066593A1
Автор: MATSUFUJI Koji, UEZONO Shouichirou
Принадлежит: Hitachi Automotive Systems, Ltd.

There are provided a control device and an abnormal combustion detecting method for detecting occurrence of abnormal combustion during an expansion stroke of an internal combustion engine. The control device of the present invention receives a detection signal of a vibration sensor for detecting pressure vibration in a combustion chamber, and detects occurrence of knocking based on a knocking-specific frequency component extracted from the detection signal in a knocking determination region within the expansion stroke. In addition, the control device detects the characteristic value, different from the knocking-specific frequency component, of the detection signal in an abnormal combustion determination region which includes the knocking determination region and which expands over the compression stroke before ignition timing and the expansion stroke, and detects self-ignition during the compression stroke before ignition timing and self-ignition during the expansion stroke, based on the characteristic value. 15.-. (canceled)6. A control device for an internal combustion engine comprising:detection means for receiving a detection signal of a vibration sensor for detecting pressure vibration in a combustion chamber of a spark ignition internal combustion engine, detecting occurrence of knocking based on a knocking-specific frequency component of the detection signal in a knocking determination region, and detecting occurrence of abnormal combustion based on a characteristic value, different from the knocking-specific frequency component, of the detection signal in an abnormal combustion determination region including the knocking determination region; anddetermination region setting means for subdividing an initial region of the knocking determination region and the abnormal combustion determination region into a plurality of subdivided regions, setting a subdivided region to be excluded from the initial region based on detection history of knocking and abnormal ...

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Номер записи: 74
08-03-2018 дата публикации

System, method, and apparatus to control engine intake manifold air temperature

Номер: US20180066618A1
Автор: David F. Schaller, Matthew J. ENGFEHR, Nathan P. Atterberry
Принадлежит: Caterpillar Inc

A system, method, and apparatus for controlling intake manifold air temperature (IMAT) of a dual fuel engine are provided. A determination regarding whether IMAT is to be modified is performed, followed by modifying the IMAT by changing flow of coolant in a cooling circuit in fluid communication with a separate circuit aftercooler (SCAC) of a SCAC circuit from a first flow path to a second flow path when it is determined that the IMAT is to be modified. A portion of the first flow path overlaps a portion of the second flow path.

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Номер записи: 75
27-02-2020 дата публикации

SYSTEM AND METHOD FOR PREVENTING SEIZURE OF BEARING USING KNOCKING SENSOR

Номер: US20200063668A1
Автор: Bong Ha-Dong, JEONG Jaekyoung
Принадлежит:

A system for inhibiting seizure of a bearing may include: a knocking sensor provided at one side of an engine to measure vibration transmitted from the engine and detect knocking of the engine, and a controller for controlling operation of the engine. In particular, the controller determines that a bearing of the engine is damaged when a magnitude of vibration of the engine inputted from the knocking sensor is greater than a damaged-bearing judging threshold value while the engine is operated in a damaged-bearing detecting region which is a region where knocking does not occur. 1. A system for inhibiting seizure of a bearing , comprising:a knocking sensor provided at one side of an engine and configured to measure vibration transmitted from the engine and to detect knocking of the engine; anda controller configured to control operation of the engine and to determine that a bearing of the engine is damaged when a magnitude of the vibration of the engine inputted from the knocking sensor is greater than a damaged-bearing judging threshold value while the engine is operated in a damaged-bearing detecting region which is a region where knocking does not occur.2. The system of claim 1 , wherein the controller is configured to set the damaged-bearing detecting region based on revolutions per minute (RPM) of the engine and at least one of a load of the engine claim 1 , an amount of air flowing into the engine or a throttle opening degree.3. The system of claim 1 , wherein the controller is configured to set a plurality of damaged-bearing detecting windows in which revolutions per minute (RPM) of the engine and a load of the engine are within a predetermined range claim 1 , respectively claim 1 , and configured to set a threshold value for detecting damage to the bearing for each damaged-bearing detecting window of the plurality of damaged-bearing detecting windows.4. The system of claim 1 , wherein when a cumulative number of times that the magnitude of the vibration of ...

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Номер записи: 76
15-03-2018 дата публикации

METHOD AND SYSTEM FOR KNOCK SENSOR RATIONALITY CHECK

Номер: US20180073457A1
Автор: Dudar Aed M.
Принадлежит:

Methods and systems are provided for determining engine knock sensor degradation. In one example, a method may include sending an excitation signal to an actuator to generate vibrations in the absence of engine combustion, and determining engine knock sensor degradation by comparing the knock sensor output with the excitation signal. 1. A method for an engine , comprising:generating a vibration via an actuator in the absence of engine combustion; andindicating knock sensor degradation based on a knock sensor output responsive to the generated vibration.2. The method of claim 1 , wherein the knock sensor degradation is indicated if amplitude of the knock sensor output is lower than a threshold claim 1 , and where the actuator is positioned outside of all combustion chambers of the engine.3. The method of claim 1 , wherein the generated vibration is an acoustic vibration.4. The method of claim 1 , wherein the actuator is part of an acoustic vehicle alerting system and generates acoustic vehicle alerts responsive to a vehicle speed less than a threshold and the engine deactivated.5. The method of claim 1 , wherein the knock sensor is coupled to an intake manifold.6. The method of claim 1 , wherein the knock sensor is coupled to a cylinder block.7. The method of claim 1 , further comprising inhibiting spark retardation responsive to an indication of knock sensor degradation.8. The method of claim 1 , wherein the actuator is coupled to an engine intake manifold.9. The method of claim 1 , wherein the actuator is coupled to an engine block.10. The method of claim 1 , further comprising recording an engine vibration during engine combustion claim 1 , and generating a vibration including the recorded engine vibration.11. The method of claim 10 , wherein the engine vibration is recorded during steady engine operation.12. A method for an engine claim 10 , comprising:during engine combustion, recording an engine vibration;in the absence of engine combustion, electrically ...

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Номер записи: 77
05-03-2020 дата публикации

FAILURE DIAGNOSIS DEVICE FOR IN-CYLINDER PRESSURE SENSOR

Номер: US20200072149A1
Автор: Fujiwara Shoji, HASHIMOTO Hidetoshi, Kinoshita Masayuki, Maiguma Taiki, Nakagawa Shigeru, Okumura Takuji, TANAKA Daisuke, Torii Yasushi, Tsumura Yuichiro
Принадлежит:

A failure diagnosis device for an in-cylinder pressure sensor is provided, which includes an in-cylinder pressure sensor, and an engine controller comprised of circuitry configured to execute a diagnosis module into which a signal of the sensor is inputted, to diagnose a failure of the sensor based on the signal. The diagnosis module includes a reading module configured to read the signal of the sensor within a specific crank angle range, a reference phase determining module configured to determine a reference phase that is a phase of a pressure change accompanying a volume change of the combustion chamber, and a failure determining module configured to determine that the sensor has failed, when the failure determining module determines a phase of the read signal of the sensor is delayed by an amount exceeding a predefined threshold from the determined reference phase. 1. A failure diagnosis device for an in-cylinder pressure sensor , comprising:an in-cylinder pressure sensor having a diaphragm disposed so as to face the inside of a combustion chamber of a reciprocating engine, and configured to output a signal corresponding to a pressure inside the combustion chamber; andan engine controller comprised of circuitry configured to execute a diagnosis module into which the signal of the in-cylinder pressure sensor is inputted, to diagnose a failure of the in-cylinder pressure sensor based on the signal of the in-cylinder pressure sensor, a reading module configured to read the signal of the in-cylinder pressure sensor within a specific crank angle range;', 'a reference phase determining module configured to determine a reference phase that is a phase of a pressure change accompanying a volume change of the combustion chamber; and', 'a failure determining module configured to determine that the in-cylinder pressure sensor has failed, when the failure determining module determines a phase of the signal of the in-cylinder pressure sensor read by the reading module is ...

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Номер записи: 78
18-03-2021 дата публикации

INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND INTERNAL COMBUSTION ENGINE CONTROL METHOD

Номер: US20210079857A1
Автор: AONO Toshihiro, SARUWATARI Masayuki
Принадлежит: Hitachi Automotive Systems, Ltd.

To accurately evaluate combustion stability in consideration of the effect of the trend even at the time of the transient operation. The present invention is configured to have a combustion energy calculation unit that calculates a combustion energy W_t of one combustion cycle in an internal combustion engine, a trend calculation unit that calculates a trend Tr of change in the combustion energy W_t calculated by the combustion energy calculation unit in a plurality of the combustion cycles, and a combustion stability judgment unit that judges combustion stability based on the combustion energy W_t in the plurality of combustion cycles and the trend Tr of change calculated by the trend calculation unit. 1. An internal combustion engine control device , comprising:a combustion parameter calculation unit that calculates a combustion parameter of one combustion cycle in an internal combustion engine;a trend calculation unit that calculates a trend of change in the combustion parameter calculated by the combustion parameter calculation unit in a plurality of the combustion cycles; anda combustion stability judgment unit that judges combustion stability based on the combustion parameter in the plurality of combustion cycles and the trend of change calculated by the trend calculation unit.2. An internal combustion engine control device , comprising:a combustion parameter calculation unit that calculates a combustion parameter of one combustion cycle in an internal combustion engine;a trend calculation unit that calculates a trend of change in the combustion parameter calculated by the combustion parameter calculation unit in a plurality of the combustion cycles;a variance calculation unit that calculates a variance of the combustion parameter based on the combustion parameter in the plurality of combustion cycles; anda combustion stability judgment unit that judges combustion stability based on the trend of change in the combustion parameter in the plurality of combustion ...

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Номер записи: 79
14-03-2019 дата публикации

METHOD AND SYSTEM FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

Номер: US20190078521A1
Автор: Kang Jun-Mo, Lin Hejie, MORGAN Jeffrey A.
Принадлежит:

A method for controlling an internal combustion engine that includes sensing a characteristic of combustion in a cylinder of the engine, generating a combustion characteristic signal from the sensed characteristic, performing a principal component analysis on the combustion characteristic signal and a predetermined combustion characteristic trace to determine first mode coefficients for the combustion characteristic signal and the predetermined combustion characteristic trace, determining a difference between the first mode coefficient of the combustion characteristic signal and the first mode coefficient of the predetermined combustion characteristic trace, and controlling the internal combustion engine based upon the difference. 1. A method for controlling an internal combustion engine , the method comprising:sensing a characteristic of combustion in a cylinder of the engine;generating a combustion characteristic signal from the sensed characteristic;performing a principal component analysis on the combustion characteristic signal and a predetermined combustion characteristic trace to determine first mode coefficients for the combustion characteristic signal and the predetermined combustion characteristic trace;determining a difference between the first mode coefficient of the combustion characteristic signal and the first mode coefficient of the predetermined combustion characteristic trace; andcontrolling the internal combustion engine based upon the difference.2. The method of claim 1 , wherein the combustion characteristic signal comprises a cylinder pressure signal from a pressure sensor of the cylinder.3. The method of claim 1 , wherein the predetermined combustion characteristic trace comprises a predetermined cylinder pressure trace.4. The method of claim 1 , wherein the combustion characteristic signal comprises a gap resistance signal from a spark plug of the cylinder.5. The method of claim 1 , wherein the predetermined combustion characteristic trace ...

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Номер записи: 80
24-03-2016 дата публикации

System and Method for Controlling the Performance of an Engine

Номер: US20160084174A1
Автор: Bengtsson Jorgen
Принадлежит:

The present invention relates to a method for controlling the performance of an engine, comprising the steps detecting an ion current in the form of a first signal analysing said first signal to determine at least one property determining a knock index based on said first signal and preferably on said at least one property combining said knock index with a plurality of factors related to properties of the engine or the operation of the engine to arrive at a engine index, and comparing said engine index with a sensitivity map of the engine to determine a correction required to improve the operation of the engine, and correcting the operation of the engine in accordance with the correction determined. The invention also relates to a system for controlling the performance of an engine. 1. A method for controlling the performance of an engine , comprising:a) detecting a first signal representing an ion current from an ion sensor sensing a combustion event in a cylinder of the engine;b) calculating a knock index based on the first signal;c) determining an operating condition of the engine during the combustion event, preferably from at least one of a sensor sensing the operating condition and an a map describing the operating condition, preferably from an engine map comprising a speed of the engine and a load on the engine during the combustion event;d) determining an expected knock intensity describing an allowable intensity of a knocking event during the combustion event; a. calculated from data provided by the sensor sensing the operating condition, preferably at least one of the ion sensor, a fuel quality sensor, a temperature sensor, and a contaminant sensor, and', 'b. selected from a table comprising the map, preferably an engine map, preferably a map of speed and load;, 'e) selecting one or more multipliers based on the operating condition, preferably wherein a multiplier is at least one of a. knock proxy based on the knock index and the one or more multipliers, ...

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Номер записи: 81
24-03-2016 дата публикации

CONTROLLING AN INTERNAL COMBUSTION ENGINE OPERATED ON GASEOUS FUEL

Номер: US20160084179A1
Автор: HOLST Hauke, LANGE Hendrik Johannes, Sivasubramanian Arvind, SIXEL Eike Joachim, WOLFGRAMM Marius
Принадлежит: Caterpillar Motoren GmbH & Co. KG

A method for controlling an internal combustion engine operating on at least partly gaseous fuel is disclosed. The method may include providing a desired burn rate profile corresponding to a desired operation of the internal combustion engine. The method may further include selecting first operating parameters such that an operation of the internal combustion engine with a first gas composition produces a first burn rate profile that corresponds to the desired burn rate profile. The method may also include operating the internal combustion engine with the first operating parameters using a second gas composition. The method may include determining that the second burn rate profile differs from the desired burn rate profile. In addition, the method may include adjusting an operating parameter from among the first operating parameters of the internal combustion engine to approach the desired burn rate profile. 1. A method for controlling an internal combustion engine operating on at least partly gaseous fuel , the method comprising:providing a desired burn rate profile corresponding to a desired operation of the internal combustion engine;selecting first operating parameters such that an operation of the internal combustion engine with a first gas composition produces a first burn rate profile that corresponds to the desired burn rate profile;operating the internal combustion engine with the first operating parameters using a second gas composition;determining that the second burn rate profile differs from the desired burn rate profile thereby indicating that the second gas composition differs from the first gas composition; andadjusting an operating parameter from among the first operating parameters of the internal combustion engine to approach the desired burn rate profile.2. The method of claim 1 , further comprising:receiving pressure data corresponding to a cylinder pressure profile; andderiving from the pressure data the burn rate profile.3. The method of claim ...

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Номер записи: 82
23-03-2017 дата публикации

METHOD FOR HUMIDITY MEASUREMENT ENABLEMENT

Номер: US20170082045A1
Автор: Alobiedat Lyth, Hakeem Mohannad, Makled Daniel A., McQuillen Michael, Soltis Richard E., Surnilla Gopichandra
Принадлежит:

Methods and systems are provided for triggering a humidity measurement based on changes in ambient conditions. In one example, a method may include, in response to a higher than threshold change in ambient air temperature or pressure, operating an oxygen sensor to update an ambient humidity estimate. Engine operation parameters may be adjusted based on the updated ambient humidity estimate. 1. A method for a vehicle engine , comprising:in response to a higher than threshold change in ambient air temperature or pressure, operating an oxygen sensor to update an ambient humidity estimate; andadjusting an engine actuator based on the updated ambient humidity estimate.2. The method of claim 1 , further comprising claim 1 , in response to a lower than the threshold change in air temperature claim 1 , adjusting the engine actuator based on a previous ambient humidity estimate.3. The method of claim 1 , wherein the higher than threshold change in ambient air temperature is based on the output of one or more of an intake air temperature sensor coupled to an engine air intake passage claim 1 , and an outside air temperature sensor coupled to the vehicle.4. The method of claim 1 , wherein the higher than threshold change in ambient air pressure is based on the output of a barometric pressure sensor coupled to an engine air intake passage.5. The method of claim 1 , wherein the threshold change in ambient air temperature or pressure includes a threshold change since a last ambient humidity estimate via the operating of the oxygen sensor.6. The method of claim 1 , wherein the threshold is adjusted based on ambient temperature claim 1 , the threshold decreased as the ambient temperature increases above an upper threshold or falls below a lower threshold.7. The method of claim 1 , wherein the oxygen sensor is one of an intake oxygen sensor coupled downstream of an intake throttle and an exhaust oxygen sensor coupled upstream of an emission control device.8. The method of claim 1 , ...

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Номер записи: 83
12-03-2020 дата публикации

METHOD AND SYSTEM FOR DETERMINING PISTON SLAP

Номер: US20200080502A1
Автор: Glugla Christopher P., Hakeem Mohannad, Kiwan Rani, Lewis Donald J.
Принадлежит:

Methods and systems are disclosed for operating an engine that includes a knock control system. The methods and system provide for repurposing the engine knock control system to detect and mitigate piston slap. The methods and systems also seek to increase the signal to noise ratio for detecting piston slap. 1. An engine operating method , comprising:adjusting a crankshaft angle where a knock window of a cylinder opens and adjusting a crankshaft angle where the knock window of the cylinder closes via a controller in response to a request to detect piston slap in the cylinder; andadjusting one or more actuators via the controller according to piston slap detected in the knock window.2. The method of claim 1 , where the crankshaft angle where the knock window of the cylinder opens is retarded.3. The method of claim 2 , further comprising reducing an actual total number of crankshaft degrees between the crankshaft angle where the knock window of the cylinder opens and the crankshaft angle where the knock window of the cylinder closes in response to the request to detect piston slap in the cylinder.4. The method of claim 1 , further comprising retarding spark timing of the cylinder in response to the request to detect piston slap in the cylinder claim 1 , filtering output of a knock sensor during the knock window via a first filter to detect piston slap of the cylinder claim 1 , providing a second knock window during an engine cycle that includes the knock window claim 1 , and filtering output of the knock sensor during the second knock window via a second filter to detect knock of the cylinder claim 1 , a pass-band frequency of the first filter lower than a pass-band frequency of the second filter.5. The method of claim 1 , where adjusting one or more actuators includes adjusting an engine throttle position and increasing an engine idle speed.6. The method of claim 1 , where adjusting one or more actuators includes further retarding spark timing.7. The method of claim ...

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Номер записи: 84
25-03-2021 дата публикации

Method and device for determining combustion noise parameters

Номер: US20210087986A1
Автор: Aihua Hu, Chungen LUO, Endong SONG, Haidong XIN, Huaihan YE, Jingxian HAO, Kai Yang, Liangliang QIAO, Lifeng Zhang, Ming Sun, Weiping YUAN, Xiangtai SONG
Принадлежит: SAIC Motor Corp Ltd

A method and a device for determining combustion noise parameters, comprising acquiring a cylinder pressure sequence which comprises cylinder pressures corresponding to different crank angles φ and corresponding moments tφ; calculating a first parameter sequence according to the cylinder pressure sequence, wherein the first parameter sequence is a parameter sequence in a time domain, and the first parameter sequence comprises one or more of a top surface cylinder force sequence, a top surface cylinder force rise rate sequence, a side surface cylinder force sequence and a side surface cylinder force rise rate sequence; and determining a target parameter for representing combustion noise in the cylinder according to the first parameter sequence.

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Номер записи: 85
31-03-2016 дата публикации

PAYMENT ENFORCEMENT SYSTEM

Номер: US20160090923A1
Автор: Al Salah Basel
Принадлежит: Sekurus International, Inc.

A system to encourage on time payments includes electronic apparatus coupled to a critical system of certain equipment. For example, the starter system of an automobile. Apparatus includes a mechanism whereby a user-operator is able to enter a command. Entry of a command serves as an indication that a payment has been made and enables further use of the equipment. On failure to timely make payments, a user is prevented from using the equipment as the apparatus is arranged to disable the equipment by way of the critical system to which it is coupled. Both a user-operator interface and critical system interruption circuit are coupled to a logic processor which is easily mounted onto equipment subject to the program. The use of a gateway system is also disclosed. 1. A method of enabling and disabling equipment in response to payments being timely made , comprising the steps of:computing a payment due deadline of a loan agreement for said equipment;generating a reference command which corresponds to said deadline; providing said reference command to a comparator via a computer interface;receiving an additional command, via a user interface application;passing said additional command to said comparator;comparing said additional command with said reference command;disabling a system which supports causing an ON/OFF event of equipment or ignition in an engine of the equipment, if agreement between said additional command and said reference command is not detected prior to said payment due deadline, wherein said system includes only components not dedicated to directly causing a spark to initiate combustion; andenabling said system if agreement between said additional command and said reference command is detected.2. A system for enabling and disabling equipment in response to timely payments being made comprising:a disabling module connected to a system that supports causing ignition in an engine of said equipment;a control module in communication with said disabling ...

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Номер записи: 86
29-03-2018 дата публикации

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

Номер: US20180087459A1
Автор: HAGARI Hideki, TOKUYAMA Kazuhiro
Принадлежит: Mitsubishi Electric Corporation

To provide a controller and a control method for an internal combustion engine capable of estimating the cylinder internal pressure of the combustion cylinder accurately in consideration of the torsional vibration of the crankshaft. A controller for an internal combustion engine includes a torsional torque calculator that calculates a value which has an amplitude of the maximum value of torsional vibration torque calculated based on a crank angle acceleration in the combustion period, and vibrates with a preliminarily set natural angular frequency, as a torsional vibration torque in the combustion period; and a cylinder internal pressure estimator that calculates a combustion gas pressure torque, by use of the equation of motion of the rotation system of the crankshaft, based on the crank angle, the crank angle acceleration, and the torsional vibration torque, and estimates the cylinder internal pressure of the combustion cylinder based on the combustion gas pressure torque. 1. A controller for an internal combustion engine that is provided with a plurality of detected units provided in a rotation member , which rotates integrally with a crankshaft , at a plurality of preliminarily set crank angles , and a specific crank angle sensor which is fixed to a nonrotation member and detects the detected unit , the controller for an internal combustion engine comprising:an angle information calculator that detects a crank angle based on an output signal of the specific crank angle sensor, and calculates a crank angle speed which is a time change rate of the crank angle, and a crank angle acceleration which is a time change rate of the crank angle speed;a torsional torque calculator that calculates a maximum value of a torsional vibration torque which is a vibration component of a torsional torque produced by torsion of the crankshaft, based on the crank angle acceleration in a combustion period, and calculates a value which has an amplitude of the maximum value of the ...

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Номер записи: 87
29-03-2018 дата публикации

SYSTEMS FOR DIAGNOSING A CONDITION OF AN ENGINE

Номер: US20180087460A1
Автор: HARANAHALLI PANCHAKSHARI Bhanuprakash, KARUNARATNE Milan Palinda, PATHAN Habeeb Khan, SCHREINER James Robert
Принадлежит:

Various systems and methods are provided for identifying cylinder knock. In one example, cylinder knock may be identified based on a knock monitor that identifies knock based on output from a crankshaft speed sensor. 1. A system comprising:a sensor configured to measure a parameter of an engine having a plurality of cylinders; and sample a signal output from the sensor;', 'process the sampled signal to determine a respective magnitude for each of one or more selected frequency components of the sampled signal, the respective magnitude for each of one or more selected frequency components determined according to a recursive sum spectral analysis of the sampled signal;', 'diagnose a condition of the engine based on the respective magnitude for each of the one or more selected frequency components; and', 'adjust one or more engine operating parameters responsive to the diagnosing., 'a controller configured to2. The system of claim 1 , wherein:the sensor is a crankshaft speed sensor,to process the sampled signal to determine the respective magnitude for each of one or more selected frequency components of the sampled signal, the controller is configured to process the sampled signal to determine a half-order magnitude of a half-order frequency component of the sampled signal; andto diagnose the condition of the engine based on the respective magnitude for each of the one or more selected frequency components, the controller is configured to diagnose cylinder knock when the half-order magnitude is greater than a threshold magnitude.3. The system of claim 1 , wherein:the sensor is a crankcase pressure sensor;to sample the signal output from the sensor, the controller is configured to sample the signal from the crankcase pressure sensor at a timing corresponding to sample timing of a crankshaft speed sensor;to process the sampled signal to determine the respective magnitude for each of one or more selected frequency components of the sampled signal, the controller is ...

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Номер записи: 88
05-05-2022 дата публикации

SYSTEM FOR VARIABLY CONTROLLING ENGINE-ON LINE IN CONSIDERATION OF COOLING AFTER FATC ENGINE IS TURNED ON

Номер: US20220136450A1
Автор: HUH Jee-Wook, Song Min-Seok
Принадлежит:

A control method capable of variably applying an existing engine-on line includes: a prediction degree calculation unit to predict a degree to which a temperature of a coolant at a current point after the engine is turned off reaches a target temperature by a request of full automatic temperature control (FATC); a factor determination unit to set reference ranges divided based on an extent that the temperature is close to the target temperature, and to determine a factor value for each reference range so that a predetermined existing engine-on line or a predetermined existing engine-off line is varied by required power; and an engine on/off line determination unit configured to determine a corrected engine-on line or a corrected engine-off line by calculating the existing engine-on line or the existing engine-off line and the factor value in the reference range in which a calculation value is positioned.

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Номер записи: 89
19-03-2020 дата публикации

FUEL INJECTION CONTROL METHOD AND FUEL INJECTION CONTROL SYSTEM FOR DIESEL ENGINE

Номер: US20200088125A1
Автор: IWATA Kiyoaki, MORI Tsunehiro, SHIRAHASHI Naotoshi, Yamamoto Takahiro
Принадлежит:

A fuel injection control system for a diesel engine is configured to, during one combustion cycle, perform multiple fuel injections to induce multiple combustions in a cylinder. A PCM controls fuel injection of the diesel engine. The PCM is configured to execute control for: at a first timing during compression stroke, starting a first fuel injection; a second timing during the compression stroke at which a time period corresponding to a first crank angle period has elapsed after a completion of the first fuel injection, starting a second fuel injection; and, at a third timing approximately a top dead center of the compression stroke at which a time period corresponding to a second crank angle period has elapsed after a completion of the second fuel injection, starting a third fuel injection. The second crank angle period is less than the first crank angle period. 1. A fuel injection control method for a diesel engine configured to , during one combustion cycle , perform multiple fuel injections to induce multiple combustions in a cylinder , the method comprising:starting a first fuel injection, at a first timing during compression stroke;starting a second fuel injection, at a second timing during the compression stroke, at which a time period corresponding to a first crank angle period has elapsed after a completion of the first fuel injection; andstarting a third fuel injection, at a third timing approximately a top dead center of the compression stroke, at which a time period corresponding to a second crank angle period has elapsed after a completion of the second fuel injection,wherein the second crank angle period is less than the first crank angle period.2. The fuel injection control method according to claim 1 , further comprises gradually increasing each of the first and second crank angle periods claim 1 , as an engine speed of the diesel engine becomes higher.3. The fuel injection control method according to claim 2 , wherein a rate of increase of the ...

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Номер записи: 90
12-05-2022 дата публикации

SIGNAL PROCESSING DEVICE, AND ENGINE CONTROL DEVICE

Номер: US20220145819A1
Автор: AKAGI Yoshihiko
Принадлежит: Hitachi Astemo, Ltd.

Provided is a signal processing device capable of effectively reducing a work load of a parameter setting operator in response to an increase in parameters constituting complicated filter control. Therefore, in the signal processing device filters an output signal from a sensor mounted on a vehicle, setting is made with respect to a plurality of filters having different filter types or filter coefficients for setting a filter characteristic of a cutoff frequency or a pass band, an individual code is set for each of the plurality of filters, and the signal processing device includes a CPU that selects the individual code based on an engine operating state so that a corresponding filter is selected, and processes an output signal from the sensor using the filter that has been selected. 1. A signal processing device that filters an output signal from a sensor mounted on a vehicle ,wherein setting is made with respect to a plurality of filters having different filter types or filter coefficients for setting a filter characteristic of a cutoff frequency or a pass band,an individual code is set for each of the plurality of filters, andthe signal processing device includes a CPU that selects the individual code based on an engine operating state so that a corresponding filter is selected, and processes an output signal from the sensor using the filter that has been selected.2. The signal processing device according to claim 1 ,wherein the sensor is a knock sensor that detects a knock of an engine mounted on the vehicle.3. The signal processing device according to claim 2 ,wherein the CPU calculates a knock intensity (K(Kfi)) of a specific frequency of a knock sensor signal based on a signal processed by the filter that has been selected.4. The signal processing device according to claim 2 ,further comprising a storage unit that stores a relationship with a specific frequency (Pfi) of a pressure wave in a cylinder corresponding to a specific frequency (Kfi) of a knock ...

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Номер записи: 91
06-04-2017 дата публикации

EXHAUST SYSTEM PRESSURE ESTIMATION SYSTEMS AND METHODS

Номер: US20170096950A1
Автор: Casetti Martino, COWGILL Joshua D., Naik Sanjeev M., Wu Zhijian James
Принадлежит:

A control system for an engine of a vehicle includes an adder module that determines a pressure sum based on a sum of a plurality of pressures determined based on (i) a plurality of operating parameters of the vehicle and (ii) a plurality of predetermined values calibrated for determining an estimated pressure at a location within an exhaust system of the vehicle. An estimating module determines the estimated pressure at the location within the exhaust system based on the pressure sum and a reference pressure. An actuator control module selectively adjusts at least one engine actuator based on the estimated pressure. 1. A control system for an engine of a vehicle , comprising:an adder module that determines a pressure sum based on a sum of a plurality of pressures determined based on (i) a plurality of operating parameters of the vehicle and (ii) a plurality of predetermined values calibrated for determining an estimated pressure at a location within an exhaust system of the vehicle;an estimating module that determines the estimated pressure at the location within the exhaust system based on the pressure sum and a reference pressure; andan actuator control module that selectively adjusts at least one engine actuator based on the estimated pressure.2. The control system of wherein the estimating module determines the estimated pressure at the location within the exhaust system based on a sum of the pressure sum and the reference pressure.3. The control system of further comprising at least one of (i) claim 1 , (ii) claim 1 , (iii) claim 1 , and (iv) claim 1 , a first module that determines, using at least some of the plurality of predetermined values, a first value based on an engine speed, an intake manifold pressure, and a spark timing of the engine; and', 'a second module that multiplies the first value by a mass air flowrate (MAF) into the engine to produce a first one of the plurality of pressures;, '(i) comprising a third module that determines, using at least ...

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Номер записи: 92
13-04-2017 дата публикации

Onboard electronic control unit

Номер: US20170101958A1
Автор: Junji Tada, Tomoki Yamamoto, Yuki Iwagami
Принадлежит: Mitsubishi Electric Corp

A downlink communication data DND from a main control circuit section to a combination control circuit section is divided into first and second downlink data, high-speed communication using a downlink clock signal and a transmission start instruction signal is performed, a high-speed load which has been directly driven from the main control circuit section is indirectly driven at high speed from the combination control circuit section by the first downlink data, a low-speed analog input signal ANL which has been indirectly inputted to the combination control circuit section is inputted to a specific input channel of a multi-channel converter through an indirect multiplexer, and channel selection is made by the downlink communication data.

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Номер записи: 93
08-04-2021 дата публикации

SYSTEM AND METHOD FOR SELF-ADJUSTING ENGINE PERFORMANCE PARAMETERS DURING FUEL QUALITY VARIATION

Номер: US20210102509A1
Автор: Bremmer Robin J., Saad Philipe F., Turlapata Agneya
Принадлежит:

A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number. 120-. (canceled)21. A controller for self-adjusting engine performance parameters in response to fuel quality variations , wherein the controller is configured to:sense a level of exhaust carbon dioxide exiting an engine;sense at least one of a centroid of the engine and a location of peak pressure in the engine;calculate a brake specific carbon dioxide value from the level of exhaust carbon dioxide using correlations accessed by controller;determine a methane number of fuel used by the engine from the determined brake specific carbon dioxide value and the at least one of the centroid and the location of peak pressure using correlations accessed by the controller;determine an optimized air-fuel ratio from the methane number; andadjust at least one engine performance parameter in response to the optimized air-fuel ratio.22. The controller of claim 21 , wherein at least one of the level of exhaust carbon dioxide is measured by an exhaust sensor claim 21 , the centroid of the engine is determined by a cylinder pressure transducer claim 21 , and the location of peak pressure of the engine is ...

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Номер записи: 94
03-07-2014 дата публикации

Method and system for pre-ignition control

Номер: US20140188374A1
Автор: Chris Paul Glugla, Michael Mancini
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods are provided for controlling an engine in response to a pre-ignition event. A pre-ignition threshold and a pre-ignition mitigating action are adjusted based on a rate of change of cylinder aircharge. As a result, pre-ignition events occurring during transient engine operating conditions are detected and addressed different from pre-ignition events occurring during steady-state engine operating conditions.

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Номер записи: 95
20-04-2017 дата публикации

METHOD AND SYSTEM FOR ADJUSTING ENGINE CYLINDER OPERATION

Номер: US20170107924A1
Автор: Blythe Neil Xavier, Loringer Daniel Edward, Malone Matthew John
Принадлежит:

Various methods and systems are provided for diagnosing individual engine cylinders based on a turbocharger speed fluctuation of a turbocharger. In one embodiment, a method for an engine includes adjusting engine operation based on an indicated operating parameter of an individual engine cylinder, where the indicated operating parameter is based on at least one turbocharger speed fluctuation of a turbocharger correlated with crankshaft position. 1. A method for an engine , comprising:adjusting engine operation based on an indicated operating parameter of an individual engine cylinder, where the indicated operating parameter is based on at least one turbocharger speed fluctuation of a turbocharger correlated with crankshaft position of a crankshaft.2. The method of claim 1 , wherein the indicated operating parameter includes one or more of engine misfire claim 1 , engine knock claim 1 , total fueling amount that is above or below a threshold value range claim 1 , fueling ratio between a first and second fuel in a multi-fuel system claim 1 , degradation of the individual engine cylinder claim 1 , degradation of a fuel injector that is configured to supply fuel to the individual engine cylinder claim 1 , or degradation of an exhaust valve of the individual engine cylinder.3. The method of claim 1 , wherein the turbocharger speed fluctuation of the turbocharger is an instantaneous turbocharger speed fluctuation of the turbocharger; and claim 1 , further comprising determining a magnitude and timing of the instantaneous turbocharger speed fluctuation for the individual engine cylinder and determining the indicated operating parameter of the individual engine cylinder based on one or more of the determined magnitude or the timing being outside of a corresponding one or more determined threshold ranges.4. The method of claim 3 , wherein the threshold ranges are based at least in part on an average magnitude of the instantaneous turbocharger speed fluctuation for each and ...

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Номер записи: 96
02-04-2020 дата публикации

ENGINE CONTROL BASED ON COMBUSTION MISFIRE OF EXHAUST GAS RECIRCULATION CYLINDER

Номер: US20200102900A1
Автор: Kolhouse J. Steven, Stroh David J.
Принадлежит:

A system for controlling combustion misfire in an engine comprising a plurality of cylinders, at least a portion of the plurality of cylinders receiving recirculated exhaust gas, comprises a controller structured to detect a combustion misfire in at least one of the cylinders of the plurality of cylinders. The controller is configured to retard a spark timing of at least the portion of the plurality of cylinders after a time delay. 1. A system for controlling combustion misfire in an engine comprising a plurality of cylinders , at least a portion of the cylinders receiving recirculated exhaust gas , the system comprising: detect a combustion misfire in at least one of the plurality of cylinders; and', 'retard a spark timing of at least the portion of the plurality of cylinders after a time delay., 'a controller structured to2. The system of claim 1 , wherein the at least one of the plurality of cylinders comprises a dedicated exhaust gas recirculation (EGR) cylinder claim 1 , the combustion misfire being in the dedicated EGR cylinder claim 1 , and wherein the controller is configured to retard the spark timing of the dedicated EGR cylinder by a first amount immediately upon detecting the combustion misfire.3. The system of claim 2 , wherein the controller is further configured to:retard the spark timing of the other cylinders of the plurality of cylinders by a second amount after the time delay.4. The system of claim 3 , wherein the time delay is one of a pre-determined fixed time delay claim 3 , a variable time delay based on engine speed claim 3 , or a variable time delay based on crank angle revolutions of a crankshaft of the engine.5. The system of claim 3 , wherein the first amount of spark timing retard in the dedicated EGR cylinder and the second amount of spark timing retard in the other cylinders of the plurality of cylinders is based on an engine operating condition.6. The system of claim 3 , wherein the first amount of spark timing retard in the dedicated ...

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Номер записи: 97
02-04-2020 дата публикации

DIAGNOSING CYLINDER PRESSURE SENSOR GAIN AND OFFSET

Номер: US20200103303A1
Автор: Booth Richard A., Hodzen Edmond P., Joshi Alok A.
Принадлежит: Cummins, Inc.

An apparatus includes a sensor module, an offset diagnostic module, and a notification module. The sensor module is in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine. The offset diagnostic module is structured to interpret the cylinder pressure data to determine an offset of the cylinder pressure sensor based on a reference in-cylinder pressure and the actual in-cylinder pressure. The notification module is structured to provide an offset error notification responsive to the offset being greater than a threshold offset. 1. An apparatus comprising:a sensor module in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine while the engine is keyed on and the crankshaft of the engine is not rotating;an offset diagnostic module structured to interpret the cylinder pressure data to determine an offset of the cylinder pressure sensor based on a reference in-cylinder pressure and the actual in-cylinder pressure, wherein the offset of the cylinder pressure sensor is determined while the engine is keyed on and a crankshaft of the engine is not rotating;a gain diagnostic module structured to determine a gain of the cylinder pressure sensor while the engine is keyed on, the crankshaft of the engine is rotating, and the engine is not firing; anda notification module structured to provide an offset error notification based on at least one of the offset of the cylinder pressure sensor being greater than a threshold offset and the gain.2. The apparatus of claim 1 , wherein the gain diagnostic module is structured to:determine the gain of the cylinder pressure sensor responsive to the offset of the cylinder pressure sensor being less than the threshold offset and based ...

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Номер записи: 98
28-04-2016 дата публикации

M index determination systems and methods for wiebe functions

Номер: US20160115877A1
Автор: Chao F. Daniels, Xu Han
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A parameter determination system includes first and second difference modules, a ratio module, and an M index module. The first difference module determines a first crankshaft angle of a combustion event of an engine, determines a second crankshaft angle of the combustion event of the engine, and determines a first difference between the first and second crankshaft angles. The second difference module determines a third crankshaft angle of the combustion event of the engine, determines a fourth crankshaft angle of the combustion event of the engine, and determines a second difference between the third and fourth crankshaft angles. The ratio module determines a ratio of the first difference to the second difference. The M index module determines an M index value for the Wiebe function based on the ratio and displays the M index value on a display.

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Номер записи: 99
28-04-2016 дата публикации

Control Device for Internal Combustion Engine

Номер: US20160115890A1
Автор: Akira Yamashita, Hiroshi Oyagi, Kazuyasu Iwata
Принадлежит: Toyota Motor Corp

The invention relates to a control device for an internal combustion engine using the center-of-gravity position of a heat generation rate for combustion control. This control device controls the center-of-gravity position of a heat generation rate to correspond to a reference position in a case where an engine cooling water temperature is equal to or higher than a reference cooling water temperature and controls the center-of-gravity position of a heat generation rate to correspond to a crank angle further on an advance side than the reference position in a case where the engine cooling water temperature is lower than the reference cooling water temperature.

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Номер записи: 100