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Применить Всего найдено 11518. Отображено 100.
16-03-1997 дата публикации

УСТРОЙСТВО УПРАВЛЕНИЯ УГЛОМ ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЕЙ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU0000003788U1
Автор: Храмов А.В.

1. Устройство управления углом зажигания для двигателей внутреннего сгорания, содержащее всасывающую магистраль с дроссельной заслонкой и отверстия, расположенные до и после дроссельной заслонки, первую вакуумную магистраль, соединяющую отверстие во всасывающей магистрали, расположенное до дроссельной заслонки через перепускной клапан с вакуумной камерой, имеющей диафрагму, связанную с элементом управления углом зажигания, вторую вакуумную магистраль, соединяющую отверстие во всасывающей магистрали, расположенное за дроссельной заслонкой через обратный клапан с вакуумной камерой, отличающееся тем, что оно содержит шток, соединяющий обратный и перепускной клапаны, и обратный клапан соединен с чувствительным к давлению элементом. 2. Устройство по п.1, отличающееся тем, что оно дополнительно содержит помещенный во вторую вакуумную магистраль дросселирующий элемент. 3. Устройство по п.1, отличающееся тем, что оно содержит во второй вакуумной магистрали вакуумный электромагнитный клапан. 4. Устройство по п.1, отличающееся тем, что шток связан с обратным клапаном жестко. 5. Устройство по п.1, отличающееся тем, что перепускной и обратный клапаны, шток и чувствительный к давлению элемент расположены в общем корпусе. 6. Устройство по п.1, отличающееся тем, что дросселирующий элемент расположен на входе обратного клапана. 7. Устройство по пп.2 и 5, отличающееся тем, что дросселирующий элемент расположен в общем корпусе. 8. Устройство по п.1, отличающееся тем, что чувствительный к давлению элемент выполнен в виде пружины. 9. Устройство по п.1, отличающееся тем, что шток выполнен в виде стержня. (19) RU (11) (13) 3 788 U1 (51) МПК F02P 5/10 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 5048285/06, 06.06.1992 (46) Опубликовано: 16.03.1997 (71) Заявитель(и): Саратовский государственный университет им.Н.Г.Чернышевского (72) Автор(ы): Храмов А.В. Ñòðàíèöà: 1 U 1 3 7 8 8 R U U 1 (57) Формула полезной ...

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27-04-2004 дата публикации

УСТРОЙСТВО КРЕПЛЕНИЯ АППАРАТА ЗАЖИГАНИЯ

Номер: RU0000037529U1

Устройство крепления аппарата зажигания на ДВС, включающее в себя поверхность блока цилиндров с выступом и бобышкой, снабженной резьбовым отверстием, кронштейн из листового металла с крепежным отверстием для присоединения к бобышке, резьбовой элемент для крепления кронштейна к бобышке и средства для крепления аппарата зажигания к кронштейну, отличающееся тем, что форма кромки кронштейна частично повторяет форму поверхности выступа, выполненного на поверхности блока цилиндров ДВС. (19) RU (11) 37 529 (13) U1 (51) МПК F02P 5/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2004100042/20 , 05.01.2004 (24) Дата начала отсчета срока действия патента: 05.01.2004 (46) Опубликовано: 27.04.2004 (73) Патентообладатель(и): Открытое акционерное общество "АВТОВАЗ" (RU) U 1 3 7 5 2 9 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели Устройство крепления аппарата зажигания на ДВС, включающее в себя поверхность блока цилиндров с выступом и бобышкой, снабженной резьбовым отверстием, кронштейн из листового металла с крепежным отверстием для присоединения к бобышке, резьбовой элемент для крепления кронштейна к бобышке и средства для крепления аппарата зажигания к кронштейну, отличающееся тем, что форма кромки кронштейна частично повторяет форму поверхности выступа, выполненного на поверхности блока цилиндров ДВС. 3 7 5 2 9 (54) УСТРОЙСТВО КРЕПЛЕНИЯ АППАРАТА ЗАЖИГАНИЯ R U Адрес для переписки: 445633, Самарская обл., г.Тольятти, ул. Заставная, 2, корп.3/1, ДТР, ПЛО, пат.пов. А.П. Голикову, рег.№ 188 (72) Автор(ы): Орлов Л.А. (RU), Чмелев Э.М. (RU), Тазтдинов Н.М. (RU) U 1 U 1 3 7 5 2 9 3 7 5 2 9 R U R U Ñòðàíèöà: 2 RU 37 529 U1 RU 37 529 U1 RU 37 529 U1 RU 37 529 U1 RU 37 529 U1 RU 37 529 U1

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10-10-2004 дата публикации

ДАТЧИК ПОЛОЖЕНИЯ ДРОССЕЛЬНОЙ ЗАСЛОНКИ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Номер: RU0000041092U1

Датчик положения дроссельной заслонки двигателя внутреннего сгорания, содержащий корпус с контактами разъема и крышкой, внутри корпуса размещены, поворотная втулка с возвратной пружиной и чувствительный элемент, отличающийся тем, что чувствительный элемент выполнен в виде постоянного магнита, закрепленного на торцевой части поворотной втулки, и магниточувствительной микросхемы, расположенной над постоянным магнитом на монтажной плате из магнитопроницаемого материала, один конец возвратной пружины скреплен с поворотной втулкой, а другой установлен в паз кольцевого фиксатора, скрепленного с корпусом. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 41 092 (13) U1 (51) МПК F02M 63/00 (2000.01) F02P 5/02 (2000.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2004118553/22 , 18.06.2004 (24) Дата начала отсчета срока действия патента: 18.06.2004 (72) Автор(ы): Барменков Б.И. (RU) , Вишняков В.К. (RU) Адрес для переписки: 440039, г.Пенза-39, а/я 1504, НПК "СТАРТ", А.Ю. Комарову U 1 4 1 0 9 2 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Датчик положения дроссельной заслонки двигателя внутреннего сгорания, содержащий корпус с контактами разъема и крышкой, внутри корпуса размещены, поворотная втулка с возвратной пружиной и чувствительный элемент, отличающийся тем, что чувствительный элемент выполнен в виде постоянного магнита, закрепленного на торцевой части поворотной втулки, и магниточувствительной микросхемы, расположенной над постоянным магнитом на монтажной плате из магнитопроницаемого материала, один конец возвратной пружины скреплен с поворотной втулкой, а другой установлен в паз кольцевого фиксатора, скрепленного с корпусом. 4 1 0 9 2 (54) ДАТЧИК ПОЛОЖЕНИЯ ДРОССЕЛЬНОЙ ЗАСЛОНКИ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ R U (73) Патентообладатель(и): Колдомасов Сергей Иванович (RU) (45) Опубликовано: 10.10.2004 U 1 U 1 4 1 0 9 2 4 1 0 9 2 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 41 092 U1 ...

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10-08-2006 дата публикации

СИСТЕМА УПРАВЛЕНИЯ МЕХАНИЗМОМ УГЛА ОПЕРЕЖЕНИЯ ВПРЫСКА ТОПЛИВА

Номер: RU0000055436U1

Система управления механизмом угла опережения впрыска топлива, содержащая датчики, электронный блок управления и исполнительный механизм, состоящий из гидравлического следящего привода и управляющего элемента, отличающаяся тем, что управляющим элементом исполнительного механизма является шаговый двигатель с винтовой парой, работой которого управляет модуль управления шаговым двигателем, расположенным в электронном блоке управления или вне его. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 55 436 (13) U1 (51) МПК F02P 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2006102008/22 , 24.01.2006 (24) Дата начала отсчета срока действия патента: 24.01.2006 (45) Опубликовано: 10.08.2006 (73) Патентообладатель(и): Закрытое акционерное общество "Старооскольский завод автотракторного электрооборудования им. А.М. Мамонова" (RU) U 1 5 5 4 3 6 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Система управления механизмом угла опережения впрыска топлива, содержащая датчики, электронный блок управления и исполнительный механизм, состоящий из гидравлического следящего привода и управляющего элемента, отличающаяся тем, что управляющим элементом исполнительного механизма является шаговый двигатель с винтовой парой, работой которого управляет модуль управления шаговым двигателем, расположенным в электронном блоке управления или вне его. 5 5 4 3 6 (54) СИСТЕМА УПРАВЛЕНИЯ МЕХАНИЗМОМ УГЛА ОПЕРЕЖЕНИЯ ВПРЫСКА ТОПЛИВА R U Адрес для переписки: 309507, Белгородская обл., г. Старый Оскол, ул. Ватутина, 54, ЗАО "СОАТЭ", А.А. Мамонову (72) Автор(ы): Сморчков Александр Сергеевич (RU), Шафров Сергей Юрьевич (RU), Агафонов Алексей Александрович (RU) U 1 U 1 5 5 4 3 6 5 5 4 3 6 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 55 436 U1 Полезная модель «Система управления механизмом угла опережения впрыска топлива» относится к двигателестроению к способам регулирования угла опережения впрыска топлива двигателя ...

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10-04-2009 дата публикации

СИСТЕМА ЭЛЕКТРОСТАРТЕРНОГО ПУСКА ДИЗЕЛЯ С КОМБИНИРОВАННЫМ ИСТОЧНИКОМ ТОКА

Номер: RU0000082006U1

Система электростартерного пуска дизеля с комбинированным источником тока, содержащая аккумуляторную батарею, отрицательным полюсом соединенную с корпусом автомобиля через выключатель батареи, а положительным полюсом соединенную со стартером, представляющим собой электрическую машину постоянного тока, работой которого управляет реле включения стартера, соединяющее через нормально разомкнутые контакты стартер с выключателем приборов и стартера и с положительным полюсом аккумуляторной батареи, при этом обмотка реле включения стартера соединена с выключателем приборов и стартера и корпусом автомобиля, а выключатель приборов и стартера соединен с выключателем батареи через реле блокировки выключателя батареи и кнопку выключения батареи, отличающаяся тем, что дополнительно содержит конденсаторную батарею, реле включения конденсаторной батареи с нормально разомкнутыми контактами, управляющее реле с нормально замкнутыми контактами, генератор и резистор, при этом положительный полюс конденсаторной батареи соединен с положительным полюсом аккумуляторной батареи, а отрицательный полюс через контакты реле включения конденсаторной батареи - с корпусом автомобиля, обмотка реле включения конденсаторной батареи соединена с корпусом автомобиля и через нормально замкнутые контакты управляющего реле с выключателем приборов и стартера, в свою очередь, обмотка управляющего реле соединена с генератором и через резистор с корпусом автомобиля. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 82 006 U1 (51) МПК F02P 5/145 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008144774/22, 13.11.2008 (24) Дата начала отсчета срока действия патента: 13.11.2008 (45) Опубликовано: 10.04.2009 8 2 0 0 6 R U Формула полезной модели Система электростартерного пуска дизеля с комбинированным источником тока, содержащая аккумуляторную батарею, отрицательным полюсом соединенную с корпусом автомобиля через ...

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27-08-2010 дата публикации

ПРИВОД ВЕНТИЛЯТОРА СИСТЕМЫ ОХЛАЖДЕНИЯ ДВС

Номер: RU0000097174U1

Привод вентилятора системы охлаждения ДВС, содержащий датчик температуры охлаждающей жидкости, вентилятор, приводимый во вращение от коленчатого вала ДВС, отличающийся тем, что он дополнительно снабжен электромагнитной муфтой, установленной на валу вентилятора и приводимой во вращении от ДВС. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 97 174 (13) U1 (51) МПК F02P 5/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2008131715/22, 31.07.2008 (24) Дата начала отсчета срока действия патента: 31.07.2008 (45) Опубликовано: 27.08.2010 (73) Патентообладатель(и): Федеральное государственное образовательное учреждение высшего профессионального образования "Горский государственный аграрный университет" (RU) U 1 9 7 1 7 4 R U Ñòðàíèöà: 1 ru CL U 1 Формула полезной модели Привод вентилятора системы охлаждения ДВС, содержащий датчик температуры охлаждающей жидкости, вентилятор, приводимый во вращение от коленчатого вала ДВС, отличающийся тем, что он дополнительно снабжен электромагнитной муфтой, установленной на валу вентилятора и приводимой во вращении от ДВС. 9 7 1 7 4 (54) ПРИВОД ВЕНТИЛЯТОРА СИСТЕМЫ ОХЛАЖДЕНИЯ ДВС R U Адрес для переписки: 362040, РСО-Алания, г. Владикавказ, ул. Кирова, 37, ФГОУ ВПО "Горский государственный аграрный университет" (72) Автор(ы): Аджиманбетов Султанхан Багатович (RU), Аджиманбетов Азиз Султанханович (RU) U 1 U 1 9 7 1 7 4 9 7 1 7 4 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 97 174 U1 Предполагаемое изобретение относится к области автомобилестроения и тракторостроения, а именно к приводу вентилятора системы охлаждения ДВС. Известен привод вентилятора системы охлаждения ДВС, который постоянно приводится клиноременной передачей независимо от температуры охлаждающей жидкости и окружающей среды. (Автомобили «Жигули моделей ВА3-1201, 2102, 21011, 21013. Устройство и ремонт.» // В.А.Вершигора, А.П.Игнатов и др. - 2-е изд. перераб. и доп.- М.: Транспорт, ...

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20-12-2010 дата публикации

СИСТЕМА ЗАЖИГАНИЯ ДВИГАТЕЛЯ

Номер: RU0000100566U1

Система зажигания двигателя, содержащая электрически соединенные катушку зажигания и свечи зажигания, микропроцессор, датчик положения коленвала, выход которого соединен с первым входом микропроцессора, датчик нагрузки двигателя, выход которого соединен со вторым входом микропроцессора, источник питания, первый выход которого соединен с третьим входом микропроцессора, и коммутатор, сигнальный вход которого соединен со вторым выходом источника питания, управляющий вход - с первым выходом микропроцессора, а выход - со входом катушки зажигания, выход катушки зажигания соединен с первым электродом первой свечи зажигания, второй электрод которой соединен со вторыми электродами остальных свечей зажигания и с общей шиной питания, отличающаяся тем, что в нее введены датчик температуры воздуха, выход которого соединен с четвертым входом микропроцессора, датчик температуры двигателя, выход которого соединен с пятым входом микропроцессора, датчик времени открытия топливной форсунки, выход которого соединен с шестым входом микропроцессора, три дополнительных коммутатора, сигнальные входы которых соединены со вторым выходом микропроцессора, и три дополнительных катушки зажигания, при этом управляющие входы первого, второго и третьего дополнительных коммутаторов соединены соответственно со вторым, третьим и четвертым выходами микропроцессора, а выходы - со входами соответственно второй, третьей и четвертой катушек зажигания, выходы которых соединены с первыми электродами соответственно второй, третьей и четвертой свечей зажигания. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 100 566 (13) U1 (51) МПК F02P 5/15 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2010121002/06, 24.05.2010 (24) Дата начала отсчета срока действия патента: 24.05.2010 (45) Опубликовано: 20.12.2010 (73) Патентообладатель(и): Федеральное государственное образовательное учреждение высшего профессионального образования " ...

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20-05-2011 дата публикации

УСТРОЙСТВО РЕГУЛИРОВАНИЯ УГЛА ОПЕРЕЖЕНИЯ ЗАЖИГАНИЯ

Номер: RU0000104638U1

Устройство регулирования угла опережения зажигания, содержащее источник питания, магнитоэлектрический датчик, исполнительный элемент для формирования искрового разряда и пороговое устройство, выход которого соединен со входом исполнительного элемента, отличающееся тем, что оно содержит сумматор и интегратор, причем выход сумматора соединен со входом порогового устройства, первый вход сумматора соединен с выходом магнитоэлекрического датчика, второй вход сумматора соединен с выходом интегратора, вход которого соединен с выходом порогового устройства. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 104 638 (13) U1 (51) МПК F02P 5/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2010151225/28, 13.12.2010 (24) Дата начала отсчета срока действия патента: 13.12.2010 (73) Патентообладатель(и): Открытое акционерное общество "ОКБПланета" (ОАО "ОКБ-Планета") (RU) (45) Опубликовано: 20.05.2011 1 0 4 6 3 8 R U Формула полезной модели Устройство регулирования угла опережения зажигания, содержащее источник питания, магнитоэлектрический датчик, исполнительный элемент для формирования искрового разряда и пороговое устройство, выход которого соединен со входом исполнительного элемента, отличающееся тем, что оно содержит сумматор и интегратор, причем выход сумматора соединен со входом порогового устройства, первый вход сумматора соединен с выходом магнитоэлекрического датчика, второй вход сумматора соединен с выходом интегратора, вход которого соединен с выходом порогового устройства. Ñòðàíèöà: 1 ru CL U 1 U 1 (54) УСТРОЙСТВО РЕГУЛИРОВАНИЯ УГЛА ОПЕРЕЖЕНИЯ ЗАЖИГАНИЯ 1 0 4 6 3 8 Адрес для переписки: 173004, г. Великий Новгород, ул. Федоровский ручей, 2/13, ОАО "ОКБПланета" R U Приоритет(ы): (22) Дата подачи заявки: 13.12.2010 (72) Автор(ы): Цветков Александр Николаевич (RU), Пунгин Николай Александрович (RU) U 1 U 1 1 0 4 6 3 8 1 0 4 6 3 8 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 104 638 ...

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27-05-2015 дата публикации

Система для указания воды в датчике кислорода на основании потребляемой мощности нагревателя датчика

Номер: RU0000152379U1

1. Система для двигателя, содержащая:впускной коллектор, включающий в себя впускной дроссель;охладитель наддувочного воздуха, расположенный выше по потоку от впускного коллектора;датчик кислорода, расположенный на выходе охладителя наддувочного воздуха, при этом датчик кислорода включает в себя нагревательный элемент; иконтроллер с машинно-читаемыми командами для указания воды в датчике кислорода в ответ на увеличение потребляемой мощности нагревательного элемента датчика кислорода более высокое, чем пороговое значение, во время выбранного состояния.2. Система по п.1, в которой машинно-читаемые команды дополнительно включают в себя команды для настройки условий эксплуатации двигателя на основании указания воды в датчике кислорода, причем условия эксплуатации двигателя включают в себя одно или более из открывания впускного дросселя и установки момента зажигания, при этом выбранное состояние чувствительно к влажности окружающей среды, большей, чем пороговое значение. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 152 379 U1 (51) МПК F02B 29/04 (2006.01) F02D 45/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014133365/06, 13.08.2014 (24) Дата начала отсчета срока действия патента: 13.08.2014 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): СУРНИЛЛА Гопичандра (US), СОЛТИС Ричард И. (US), МАКЛЕД Дэниел А. (US), КЛАРК Тимоти Джозеф (US) (45) Опубликовано: 27.05.2015 Бюл. № 15 1 5 2 3 7 9 R U (57) Формула полезной модели 1. Система для двигателя, содержащая: впускной коллектор, включающий в себя впускной дроссель; охладитель наддувочного воздуха, расположенный выше по потоку от впускного коллектора; датчик кислорода, расположенный на выходе охладителя наддувочного воздуха, при этом датчик кислорода включает в себя нагревательный элемент; и контроллер с машинно-читаемыми командами для указания воды в датчике кислорода в ответ на увеличение потребляемой мощности нагревательного ...

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10-06-2015 дата публикации

Система транспортного средства

Номер: RU0000152553U1

1. Система транспортного средства, содержащая:двигатель;первую и вторую топливные системы, присоединенные к двигателю, причем первая топливная система подает первое топливо в двигатель, а вторая топливная система подает второе топливо в двигатель, при этом первое топливо отличается от второго топлива; иконтроллер, содержащий постоянные команды, исполняемые для регулировки установки момента зажигания двигателя в ответ на зависимость ограниченного детонацией в двигателе запаздывания искрового зажигания в зависимости от нагрузки двигателя, которая выводится из двух других зависимостей ограниченного детонацией в двигателе запаздывания искрового зажигания в зависимости от нагрузки двигателя.2. Система транспортного средства по п. 1, в которой две других зависимости ограниченного детонацией в двигателе запаздывания искрового зажигания в зависимости от нагрузки двигателя выражены в качестве прямых линий.3. Система транспортного средства по п. 2, в которой зависимость ограниченного детонацией в двигателе запаздывания искрового зажигания в зависимости от нагрузки двигателя выражается в качестве прямой линии.4. Система транспортного средства по п. 1, дополнительно содержащая дополнительные команды для регулировки установки момента зажигания двигателя в ответ на детонацию в двигателе.5. Система транспортного средства по п. 1, в которойзависимость ограниченного детонацией в двигателе запаздывания искрового зажигания в зависимости от нагрузки двигателя включает в себя более низкие нагрузки двигателя, при которых детонация отсутствует. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 152 553 U1 (51) МПК F02M 43/00 (2006.01) F02D 19/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014138797/06, 25.09.2014 (24) Дата начала отсчета срока действия патента: 25.09.2014 (72) Автор(ы): ЛЕОНЕ Томас Дж. (US), СУРНИЛЛА Гопичандра (US) 26.09.2013 US 14/038,555 (45) Опубликовано: 10.06.2015 Бюл. № 16 1 5 2 5 5 3 R ...

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10-07-2015 дата публикации

Система транспортного средства

Номер: RU0000153137U1
Автор: Аед М. ДУДАР

1. Система транспортного средства, содержащая: двигатель; датчик барометрического давления на впуске двигателя; один или более датчиков давления воздуха в шинах, присоединенных к одной или более шинам транспортного средства; впускной дроссель во впуске двигателя; контроллер, содержащий команды, исполняемые для регулировки работы двигателя в ответ на изменение барометрического давления в ответ на величину открывания впускного дросселя, большую, чем пороговое значение при работе двигателя, причем изменение барометрического давления определено посредством датчика барометрического давления; и регулировки работы двигателя в ответ на изменение барометрического давления в ответ на величину открывания впускного дросселя, меньшую, чем пороговое значение при работе двигателя, причем изменение барометрического давления определено посредством одного или более датчиков давления воздуха в шинах, присоединенных к одной или более шинам транспортного средства.2. Система по п. 1, в которой регулировка работы двигателя включает в себя регулировку одного или более из установок момента зажигания в двигателе, топливно-воздушного соотношения в двигателе и порогового значения выявления парообразующих утечек. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 153 137 U1 (51) МПК F02D 45/00 (2006.01) G01L 23/24 (2006.01) F02P 5/145 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2014130717/06, 24.07.2014 (24) Дата начала отсчета срока действия патента: 24.07.2014 (72) Автор(ы): ДУДАР Аед М. (US) (73) Патентообладатель(и): ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: R U 25.07.2013 US 13/951,212 (45) Опубликовано: 10.07.2015 Бюл. № 19 1 5 3 1 3 7 R U (57) Формула полезной модели 1. Система транспортного средства, содержащая: двигатель; датчик барометрического давления на впуске двигателя; один или более датчиков давления воздуха в шинах, присоединенных к одной или более шинам ...

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30-10-2019 дата публикации

Помпа системы охлаждения двигателя внутреннего сгорания с электрическим приводом

Номер: RU0000193487U1

Полезная модель относится к области двигателестроения, в частности к системам охлаждения двигателей внутреннего сгорания, и позволяет повысить эффективность охлаждения ДВС на любых режимах эксплуатации. Помпа системы охлаждения ДВС включает корпус (1) с монтажным фланцем (фиг. 1), в который на подшипниках (2) устанавливается вал (3) электропривода с выполненным заодно с ним диском с вклеенными постоянными магнитами (4) электрического двигателя. С одной стороны вала (3) электропривода расположено рабочее колесо (5), а с другой стороны расположен электрический двигатель с устройством охлаждения в его задней части, которое представляет собой теплообменник жидкостного охлаждения, выполненный в виде кольцевой камеры (6) со штуцерами входа (7) и выхода (8) охлаждающей жидкости. Электромагнитные обмотки (9) электрического двигателя установлены непосредственно на задней стенке кольцевой камеры (6). Для повышения эффективности охлаждения электрического двигателя внутри кольцевой камеры (6) по окружности выполнен кольцевой спиралевидный канал (10), вход в который сообщен со штуцером входа (7), а выход со штуцером (8) выхода охлаждающей жидкости, или по окружности кольцевой камеры (6) на ее внутренней поверхности закреплены направляющие пластины (11), образующие одностороннее лабиринтное движение охлаждающей жидкости. Устройство охлаждения электрического двигателя сообщено с общей системой охлаждения ДВС или имеет собственный контур охлаждения с дополнительным насосом и радиатором. И 1 193487 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ ВО“ 193 487” 91 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: 05.12.2019 Дата внесения записи в Государственный реестр: 10.02.2021 Дата публикации и номер бюллетеня: 10.02.2021 Бюл. №4 Стр.: 1 па ЗУ 6 ЕП

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12-01-2012 дата публикации

Control device for internal combustion engine

Номер: US20120010801A1
Принадлежит: Toyota Motor Corp

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

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09-02-2012 дата публикации

Method and device for regenerating a particle filter

Номер: US20120031076A1
Принадлежит: ROBERT BOSCH GMBH

A method for the targeted initiation of a regeneration of a particle filter in an exhaust-gas duct of an internal combustion engine which has a catalytic converter downstream of the particle filter in the flow direction of the exhaust gas, the regeneration of the particle filter taking place by means of an oxidative burn-off of the particles during the regeneration phase.

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05-04-2012 дата публикации

Engine controlling apparatus

Номер: US20120083991A1
Принадлежит: Mitsubishi Motors Corp

An engine controlling apparatus includes an idle speed setting unit that sets a target idle speed upon idling of an engine mounted on a vehicle, and a target torque setting unit that sets a target torque in response to the target idle speed. The apparatus further includes an ignition timing controlling unit that controls an ignition timing and an intake air amount controlling unit that controls an intake air amount, and a steering angle detection unit that detects a steering angle. The apparatus further includes a torque value setting unit that sets a torque value in response to the steering angle. The intake air amount controlling unit controls the intake air amount in response to both the target torque and the torque value. The ignition timing controlling unit controls the ignition timing so that the engine outputs the target torque.

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10-05-2012 дата публикации

Method and device for controlling spark-ignition direct injection engine

Номер: US20120111302A1
Принадлежит: Mazda Motor Corp

A method for controlling an engine includes, when the engine is operating within a particular range with comparatively low engine speed and high load, setting an effective compression ratio of 10:1 or above, retarding ignition timing by a predetermined amount and retarding the ignition timing within a first, relatively low engine speed range more than within a second, higher engine speed range, setting an injection mode of an injection valve to divided injections performed at least twice in a period from an intake stroke to an earlier-half stage of a compression stroke, performing, within the first engine speed range, a final injection in the earlier-half stage of the compression stroke, and performing, within the second engine speed range, the final injection in a late stage of the intake stroke and at least one injection other than the final injection in a middle stage of the intake stroke.

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24-05-2012 дата публикации

Engine controller

Номер: US20120125295A1
Принадлежит: Denso Corp

An ECU detects a shaft torque in a specified torque detection range defined for each cylinder. The shaft torque is generated due to a combustion of the fuel and is applied to a crankshaft of the engine. The ECU computes a crank angle position as an actual peak position at which a combustion torque is peak. The ECU stores a previously determined maximum torque position which corresponds to a crank angle position at which a combustion torque becomes peak. Based on the actual peak position and the previously stored maximum torque position, an igniter controls an ignition timing.

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05-07-2012 дата публикации

Digital i/o signal scheduler

Номер: US20120173777A1
Принадлежит: Individual

An apparatus and method of scheduling signals. In one embodiment, the method includes a first circuit receiving a first plurality of reference values. The first circuit selects a reference value from the first plurality according to a first reference identifier (ID) that is stored in memory. The first circuit compares the selected reference value to a first match value.

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12-07-2012 дата публикации

Control of an engine-driven generator to address transients of an electrical power grid connected thereto

Номер: US20120175876A1
Принадлежит: Cummins Power Generation IP Inc

A technique for providing electric power to an electric power utility grid includes driving an electric power alternator coupled to the grid with a spark-ignited or direct injection internal combustion engine; detecting a change in electrical loading of the alternator; in response to the change, adjusting parameters of the engine and/or generator to adjust power provided by the engine. In one further forms of this technique, the adjusting of parameters for the engine includes retarding spark timing and/or interrupting the spark ignition; reducing or retarding direct injection timing or fuel amount and/or interrupting the direct injection; and/or the adjusting of parameters for the generator including increasing the field of the alternator or adding an electrical load.

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16-08-2012 дата публикации

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

Номер: US20120204830A1

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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27-09-2012 дата публикации

Method for starting an engine

Номер: US20120245831A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A method for improving starting of an engine that may be repeatedly stopped and started is presented. In one embodiment, the method disengages a starter in response to a first predicted combustion in a cylinder of the engine. The method may reduce one-way clutch degradation of a starter. Further, the method may reduce current consumption during engine starting.

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15-11-2012 дата публикации

Internal Combustion Engine Control Device

Номер: US20120290193A1
Принадлежит: HITACHI LTD

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

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13-12-2012 дата публикации

Fuel management system for variable ethanol octane enhancement of gasoline engines

Номер: US20120312284A1
Принадлежит: Massachusetts Institute of Technology

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

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20-12-2012 дата публикации

Arrangement structure for drive circuit

Номер: US20120318240A1
Автор: Hiaki Sugawara, Ryuji Aso
Принадлежит: Keihin Corp

A shortest distance (d) between a drive circuit ( 4 ) and an electric wire ( 8 b ) is set such that an electric field caused by an electric current flowing in the electric wire ( 8 b ) that electrically connects an ignition-voltage generating device (IG) and an ignition plug ( 6 ) induces a surge voltage to the drive circuit ( 4 ) via an electrostatic capacity (Cm) between the drive circuit ( 4 ) that can freely inject fuel from a fuel injection device ( 7 ) provided in an internal-combustion engine ( 5 ) to the internal-combustion engine ( 5 ) under control of a microcomputer and the electric wire ( 8 b ), and the surge voltage becomes equal to or lower than predetermined surge withstanding capability of the semiconductor power device.

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10-01-2013 дата публикации

Method and system for controlling fuel usage

Номер: US20130008410A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

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

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21-03-2013 дата публикации

METHOD AND DEVICE FOR CONTROLLING THE EXHAUST GAS RECIRCULATION RATE FOR INTERNAL COMBUSTION ENGINES DURING LEAN OPERATION

Номер: US20130068197A1
Принадлежит:

A method for setting an exhaust gas recirculation rate in an engine system having an internal combustion engine, the exhaust gas recirculation rate indicating the portion of the exhaust gas recirculated into one cylinder of the internal combustion engine with regard to the total gas quantity present in the cylinder, including: operating the internal combustion engine according to an input for the exhaust gas recirculation rate, an ignition of an air/fuel mixture being carried out in the cylinder at a certain ignition timing; adjusting the ignition timing in the cylinder of the internal combustion engine; correcting the input for the exhaust gas recirculation rate as a function of a change in an operating behavior of the internal combustion engine due to the ignition timing adjustment. 19-. (canceled)10. A method for setting an exhaust gas recirculation rate in an engine system having an internal combustion engine , the exhaust gas recirculation rate indicating a portion of the exhaust gas recirculated into one cylinder of the internal combustion engine with regard to a total gas quantity present in the cylinder , the method comprising:operating the internal combustion engine according to an input for the exhaust gas recirculation rate, an ignition of an air/fuel mixture being carried out in the cylinder at a certain ignition timing;adjusting the ignition timing in the cylinder of the internal combustion engine; andcorrecting the input for the exhaust gas recirculation rate as a function of a change in an operating behavior of the internal combustion engine due to the ignition timing adjustment, wherein the input for the exhaust gas recirculation rate is increased, when acted on by a correction value, when a torque provided by the internal combustion engine is increased in a case of an ignition timing retardation and when the torque provided by the internal combustion engine is reduced in a case of an ignition timing advance.11. The method as recited in claim 10 , ...

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25-04-2013 дата публикации

Exhaust purification device of internal combustion engine

Номер: US20130101474A1
Принадлежит: Toyota Motor Corp

An ambient NO x adsorption catalyst that can adsorb NO x contained in an exhaust gas in the presence of CO under standard conditions is placed in an engine exhaust gas passage, in an internal combustion engine. Until an engine post-initiation catalyst is activated, the amounts of a high-boiling-point hydrocarbon and an unsaturated hydrocarbon that are contained in the exhaust gas flowing into the catalyst are reduced so that the NO x -adsorbing activity cannot be deteriorated by the adhesion activity of the hydrocarbons while maintaining the CO concentration in the exhaust gas flowing into the catalyst at a level higher than the concentration required for the adsorption of NO x .

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09-05-2013 дата публикации

PRODUCTS AND PROCESSES FOR ANALYZING OCTANE CONTENT

Номер: US20130112169A1
Принадлежит: CFPH, LLC

Products and processes are provided herewith for analyzing octane content in a fuel sample that include the step or steps of receiving an octane measurement of a fuel sample from a octane analyzer, rounding the octane measurement to a nearest recognized octane rating, comparing the rounded octane measurement with a listed octane rating for the fuel sample, and communicating results of the comparison to a user of the octane analyzer. The octane analyzer may be incorporated into a fuel pump or a vehicle. The results of the comparison may also be used to adjust the vehicle operating parameters to account for the actual octane rating of the fuel dispensed into the vehicle. 1. A method comprising:receiving an octane measurement of a fuel sample from a octane analyzer;rounding the octane measurement to a nearest recognized octane rating;comparing the rounded octane measurement with a listed octane rating for the fuel sample; andcommunicating results of the comparison to a user of the octane analyzer.2. The method of claim 1 , wherein communicating the results of the comparison comprises displaying a pass claim 1 , fail claim 1 , or exceed message to the user.3. The method of claim 1 , comprising measuring the octane of the fuel sample at a fuel pump comprising the octane analyzer integrated into the fuel pump.4. The method of claim 3 , wherein the fuel pump comprises a receptacle having an inlet that allows fuel to enter the receptacle and an outlet that allows fuel to exit the receptacle while fuel is being dispensed claim 3 , the method comprising at least partially filling the receptacle while fuel is being dispensed claim 3 , and wherein measuring the octane of the fuel sample at the fuel pump comprises measuring the octane of the fuel in the receptacle.5. The method of claim 4 , comprising blocking fuel flow through the receptacle for at least a time necessary for measuring the octane of the fuel sample in the receptacle.6. The method of claim 5 , comprising ...

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13-06-2013 дата публикации

Device and method for operating a hand-held working apparatus

Номер: US20130151126A1
Принадлежит: Andreas Stihl AG and Co KG

A hand-held working apparatus has an internal combustion engine having a crankshaft which is driven in rotation. The crankshaft drives at least one tool of the working apparatus via a centrifugal clutch. The working apparatus has a device for determining the speed of the internal combustion engine and a control device which controls the internal combustion engine. It is provided that the profile of the speed of the internal combustion engine is evaluated by the control device, and that the engagement speed of the centrifugal clutch is determined from the profile of the speed of the internal combustion engine. A method of operation is also provided.

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20-06-2013 дата публикации

VARIABLE IGNITION TYPE DIESEL-GASOLINE DUAL FUEL POWERED COMBUSTION ENGINE, SYSTEM, AND METHOD

Номер: US20130152898A1
Принадлежит: HYUNDAI MOTOR COMPANY

A variable ignition type diesel-gasoline dual fuel powered combustion engine and control method can select spark ignition or compression ignition depending on the engine operating range. The variable ignition type diesel-gasoline dual fuel powered combustion engine includes a cylinder block formed of a plurality of cylinders each being connected to an air intake manifold sucking air or a gasoline fuel-mixed air and an exhaust manifold exhausting an exhaust gas after combustions; and an ECU controlling the combustion modes. The engine operating ranges are judged by the speed and load of the engine. When the range is the high load range or the low load range, a gasoline fuel combustion is performed, and when the range is between the high load range and the low load range, a diesel-gasoline dual fuel powered step is performed. 1. A variable ignition type diesel-gasoline dual fuel powered combustion engine comprising:a cylinder block including a plurality of cylinders, each cylinder connected to an air intake manifold for receiving air or a gasoline-mixed air and an exhaust manifold discharging an exhaust gas after combustions;a spark plug provided for each cylinder;a diesel fuel injector provided for each cylinder; andan electronic control unit (ECU) controlling the engine in such a way that engine operating ranges are judged, and when the range is the high load range or the low load range, a gasoline-mixed air is sucked into the interior of the cylinder and is spark-ignited by the spark plug, and when the range is between the low load range and the high load range, a gasoline-mixed air is sucked into the interior of the cylinder and a diesel fuel is injected by way of the diesel injector, so the diesel-gasoline fuels are compressed and ignited.2. The variable ignition type diesel-gasoline dual fuel powered combustion engine according to claim 1 , wherein the ECU is configured to judge the engine operating ranges based on the speed and the load.3. A method for ...

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20-06-2013 дата публикации

INTERNAL COMBUSTION ENGINE IGNITION DEVICE

Номер: US20130152910A1
Принадлежит: FUJI ELECTRIC CO., LTD.

An internal combustion engine ignition device can determine ignition timing with high precision to perform ignition with high precision even where noise superimposed at the time of rise of current flowing through an ignition coil is generated. In an internal combustion engine ignition device including an output terminal for detecting an internal state such as a coil current, it is possible to prevent generation of pulse noise in the form of chattering at falling and rising edges of a voltage of the output terminal by using a hysteresis comparator, even if noise is superimposed at the time of rise of the coil current. Therefore, a voltage pulse with pulse width of high precision is transmitted to an electronic control unit without the influence of noise, and the ignition timing can be determined properly with high precision. 1. An internal combustion engine ignition device , in which an on-off control of current for energizing an ignition coil is performed by a switching element upon receiving a control signal , and an output terminal for externally outputting an ignition state of the ignition coil is provided , the internal combustion engine ignition device comprising:voltage converting means for converting the current to a voltage, the converted voltage being referred to as a sense voltage;first comparing means for comparing the sense voltage with each of two reference voltages, the two reference voltages being a first detection reference voltage for detecting the sense voltage at a time of rise and a first release reference voltage which is a voltage lower than the first detection reference voltage, to output a first output signal, the first comparing means having a hysteresis characteristic;second comparing means for comparing the sense voltage with each of two other reference voltages, the two reference voltages being a second detection reference voltage for detecting the sense voltage at a time of rise and a second release reference voltage which is a voltage ...

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18-07-2013 дата публикации

METHOD AND SYSTEM FOR CONTROLLING FUEL USAGE

Номер: US20130180502A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control 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, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients. 1. An engine method comprising ,in response to engine knock, retarding ignition spark timing by a first amount and direct injecting a second amount of a fluid, the first amount of spark retard and the second amount of fluid injection adjusted based on a combination of inherent octane of the fluid, dilution effect of the fluid, and evaporation effect of the fluid and further based on a likelihood of pre-ignition.2. The method of claim 1 , wherein the adjustment includes claim 1 , increasing the second amount of fluid injection and decreasing the first amount of spark retard as the dilution effect of the injected fluid increases.3. The method of claim 2 , wherein the fluid includes one or more of ethanol claim 2 , methanol claim 2 , water claim 2 , and gasoline.4. The method of further comprising adjusting an amount of boost based on the amount of direct injected fluid.5. The method of further comprising adjusting an amount of boost based on the amount of direct injected fluid.6. A method of operating an engine claim 1 , comprising claim 1 ,in response to engine knock, retarding ignition spark timing up to a predetermined timing and direct injecting an amount of fluid, the predetermined timing and amount of fluid direct injected adjusted based on a molar composition of the injected fluid and based on a likelihood of pre-ignition; andadjusting an amount of boost based on the amount of direct injected fluid.7. The method of claim 6 , wherein the injected fluid is a blend including a first fluid and a second fluid claim 6 , and wherein the molar composition of the blend ...

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25-07-2013 дата публикации

Speed reduction method for hand-carried engine-driven working machine

Номер: US20130186368A1
Принадлежит: Iida Denki Kogyo KK, Zama Japan Co Ltd

A speed reduction method for a hand-carried engine-driven working machine is provided in which a speed reduction of an engine can be attained reliably and safely by preventing the occurrence of lean come-down phenomenon in such a state that the engine is operating in a practical revolution speed range. An acceleration is calculated based on a change in revolution speed, and when the acceleration becomes smaller than a predetermined threshold, an ignition timing is retarded by a desired amount based on a determination that the engine is being decelerated, and further, a fuel flow rate is also increased, whereby the decelerated state of the engine is maintained without fail, so that the occurrence of lean come-down phenomenon is prevented in the process of reducing the revolution speed of the engine.

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08-08-2013 дата публикации

Handheld work apparatus

Номер: US20130199812A1
Принадлежит: Andreas Stihl AG and Co KG

A handheld work apparatus has a combustion engine ( 4 ) for driving a tool. The combustion engine ( 4 ) has an ignition device, a device for metering fuel and a control device ( 31 ). The control device ( 31 ) engages when an engagement speed (n E1 , n E2 ) is reached, in order to limit the speed (n) of the combustion engine ( 4 ). In order to allow the speed (n) to be set in an easy manner at full throttle, the work apparatus has a device for setting the engagement speed (n E2 ) by the user.

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12-09-2013 дата публикации

Engine automatic stop/restart device

Номер: US20130238224A1
Принадлежит: Mitsubishi Electric Corp

An engine automatic stop/restart device includes an ignition-prohibition-decision unit that prohibits an ignition for an engine, which is controlled by the ignition-control unit, when a reverse rotation of the engine is detected based on a crank-angle signal; and an ignition-prohibition-release-decision unit that releases an ignition prohibition, after the ignition is prohibited by the ignition-prohibition-decision unit; in which the ignition-prohibition-release-decision unit releases the ignition prohibition when regular rotational signals of the engine, of which count is greater than or equal to a predetermined count, is detected and an engine revolution number is greater than or equal to a predetermined revolution number, after the reverse rotation of the engine is detected, and before a crank is positioned at a compression top dead center of the engine.

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07-11-2013 дата публикации

METHOD AND CONTROL DEVICE FOR OPERATING A SPARK IGNITION GAS ENGINE

Номер: US20130291834A1
Принадлежит: MTU Onsite Energy GmbH

The disclosure relates to a method for operating a spark ignition gas engine, with fuel gas in the form of biogas by setting an ignition time (ZZP) of the spark ignition gas engine. The method comprises to following steps: mixing of air and fuel gas to form a combustible gas mixture in a mixing arrangement, feeding in and igniting the combustible gas mixture in the combustion chamber while setting an ignition time (ZZP) and burning the combustible gas mixture while discharging exhaust gas from the combustion chamber. The method further comprises the steps of: detection of an exhaust gas temperature (T_AG) of the exhaust gas, predefining at least one reactor position (LRV) of a component of the mixing arrangement, setting the ignition time (ZZP) of the spark ignition gas engine as a function of the exhaust gas temperature (T_AG) and the reactor position (LRV). The reactor position (LRV) is predefined as a manipulated variable by a mixture controller. 1. A method for operating a gasoline engine with fuel gas in the form of biogas , with an ignition time being adjusted , comprising the following steps:mixing air and fuel gas to form a combustion gas mixture in a mixing arrangement,supplying and igniting the combustion gas mixture in a combustion chamber with an adjustment of the ignition time as well as burning the combustion gas mixture and discharging exhaust from the combustion chamber,detecting an exhaust temperature of the exhaust,predetermining at least one throttle setting of a component of the mixing arrangement,adjusting the ignition time of the gasoline engine depending on the exhaust temperature and the throttle setting, with the throttle setting being predetermined by a mixture control as a control variable.2. A method according to claim 1 , whereinthe throttle setting is predetermined by the mixture control as the control variable with a target value to the component of the mixing arrangement and an ignition timer, to adjust the ignition time via an ...

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14-11-2013 дата публикации

System and method for preventing misfire during engine startup

Номер: US20130304362A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes a stop-start module and a throttle control module. The stop-start module stops an engine when a driver depresses a brake pedal while an ignition system is on and the engine is idling. The throttle control module selectively opens a throttle valve when fuel injection in the engine is stopped while the ignition system is on based on engine speed and a manifold pressure within an intake manifold. The stop-start module starts the engine when the driver releases the brake pedal.

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05-12-2013 дата публикации

Control system for internal combustion engine

Номер: US20130325289A1
Принадлежит: Honda Motor Co Ltd

A control system for an internal combustion engine, which controls an output torque of the internal combustion engine for driving a vehicle, is provided. An engine rotational speed is detected, and a change amount of the detected engine rotational speed is calculated. The output torque control amount of the engine is corrected so that the rotational speed change amount coincides with the center value of the local minimum value and the local maximum value of the rotational speed change amount. Specifically, a torque correction amount is calculated according to a torque value which is equal to half of a difference between peak vibration torque values corresponding to the local minimum value and the local maximum value of the rotational speed change amount, and an output torque control amount is corrected with the torque correction amount.

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19-12-2013 дата публикации

Ignition Apparatus, Internal-Combustion Engine, Ignition Plug, Plasma Equipment, Exhaust Gas Degradation Apparatus, Ozone Generating/Sterilizing/Disinfecting Apparatus and Odor Eliminating Apparatus

Номер: US20130336849A1
Автор: Yuji Ikeda
Принадлежит: Imagineering Inc

A plasma equipment comprising a microwave oscillator for generating a predetermined microwave band, a microwave resonant cavity for allowing the predetermined microwave band to resonate, and microwave radiation means for radiating the microwave into the microwave resonant cavity, wherein the microwave radiation means is a microwave radiation antenna having the shape and the size so as to form a strong electric field of the microwave in a plasma generation field formed by the microwave.

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02-01-2014 дата публикации

Method and system for pre-ignition control

Номер: US20140000552A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for reducing late burn induced cylinder pre-ignition events. Forced entry of residuals from a late burning cylinder into a neighboring cylinder may be detected based on engine block vibrations sensed in a window during an open exhaust valve of the late burning cylinder. In response to the entry of residuals, a pre-ignition mitigating action, such as fuel enrichment or deactivation, is performed in the neighboring cylinder.

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09-01-2014 дата публикации

Engine system

Номер: US20140007839A1
Автор: Hiroshi Inoue
Принадлежит: Yamaha Motor Co Ltd

An engine system includes an engine, an air intake passage to supply air to the engine, a throttle valve provided in the air intake passage to adjust a throttle opening degree that is an opening degree of the air intake passage, a bypass passage to supply air to the engine while bypassing the throttle valve, an on/off valve provided in the bypass passage to open and close the bypass passage, and a control unit that performs ignition lag control of the engine to control an output of the engine when the on/off valve is in an open state.

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06-02-2014 дата публикации

METHOD AND SYSTEM FOR PRE-IGNITION CONTROL

Номер: US20140034012A1
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. 1. A method for an engine , comprising:adjusting spark timing in response to sensor output above a lower threshold but below a higher threshold during steady-state conditions;adjusting a timing, number of injections, and split ratio, in a given engine cycle, of a pre-ignition suppressing fluid injection to a cylinder based on-sensor output higher than the higher threshold during a cylinder aircharge transient.2. The method of wherein the engine is a turbocharged engine.3. The method of further comprising adjusting the timing claim 1 , number of injection claim 1 , and split ratio in response to sensor output above the lower threshold claim 1 , below the higher threshold during steady-state conditions claim 1 , and above a middle threshold between the lower and higher thresholds.4. The method of wherein sensor output above the lower threshold but below the higher threshold during steady-state conditions indicates engine knock.5. The method of wherein sensor output higher than the higher threshold during a cylinder aircharge transient indicates pre-ignition.6. The method of wherein sensor output above the lower threshold claim 5 , below the higher threshold claim 5 , and above a middle threshold between the lower and higher thresholds claim 5 , during steady-state conditions claim 5 , indicates pre-ignition7. The method of claim 1 , wherein adjusting the number of injections includes increasing the number of injections in the given engine cycle as a rate of change in a parameter indicative of cylinder aircharge increases above the threshold.8. The method of ...

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06-02-2014 дата публикации

METHOD AND SYSTEM FOR CONTROLLING FUEL USAGE

Номер: US20140034013A1
Автор: Leone Thomas G.
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control 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, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients. 1. A method of operating an engine including a charge motion control valve (CMCV) , comprising , 'adjusting the CMCV to decrease an engine burn rate while increasing injection of a knock control fluid to address knock.', 'at high engine loads,'}2. The method of claim 1 , further comprising claim 1 , maintaining a predetermined amount of spark retard.3. The method of claim 2 , wherein an amount of knock control fluid injected is based on the engine load claim 2 , and further based on a combination of an inherent octane effect claim 2 , a dilution effect claim 2 , and an evaporation effect of the injected fluid.4. The method of claim 3 , wherein the predetermined amount of spark is based on the engine load claim 3 , and further based on the combination of an inherent octane effect claim 3 , a dilution effect claim 3 , and an evaporation effect of the injected fluid.5. The method of claim 4 , further comprising claim 4 , adjusting throttle opening and/or engine boost based on the injection.6. A method of operating an engine including a CMCV comprising claim 4 ,adjusting whether the CMCV is opened at high engine loads based on the availability of a knock control fluid.7. The method of claim 6 , wherein the adjustment includes opening the CMCV at high engine loads if the availability of the knock control fluid available exceeds a threshold.8. The method of claim 7 , wherein the adjustment is further based on the composition of the knock control fluid.9. The method of claim 8 , wherein the adjustment includes opening the CMCV at high loads if the alcohol content of the ...

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06-02-2014 дата публикации

Smart ignition coil with integrated controller

Номер: US20140034032A1
Принадлежит: Individual

Disclosed is a device comprising an ignition coil, a power stage and a controller connected to said ignition coil via said power stage. The controller is adapted to receive commands and/or parameters related to engine operation and to process said commands and/or parameters and the controller is further adapted to output a voltage signal to said ignition coil via said power stage, said signal being based at least in part on said processed commands and/or parameters.

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13-02-2014 дата публикации

Split bank and multimode skip fire operation

Номер: US20140041630A1
Принадлежит: Tula Technology Inc

Various methods and arrangements for operating a skip fire engine control system are described. In one aspect of the invention, a distinct firing sequence is determined for each bank of working chambers that is used to operate the bank in a skip fire manner. Each firing sequence uses a different firing fraction. In another aspect of the invention, a determination is made as to whether a firing sequence should be dynamically generated or selected from a set of predefined firing sequences.

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13-03-2014 дата публикации

System and method for controlling a firing sequence of an engine to reduce vibration when cylinders of the engine are deactivated

Номер: US20140069381A1
Автор: Randall S. Beikmann
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes a vibration prediction module and a firing sequence module. The vibration prediction module predicts a modal response of a vehicle based on a firing sequence of an engine when a cylinder of the engine is deactivated. The firing sequence module adjusts the firing sequence of the engine based on the predicted modal response of the vehicle.

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20-03-2014 дата публикации

COMBUSTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND COMBUSTION METHOD FOR HOMOGENEOUS LEAN AIR/FUEL MIXTURE

Номер: US20140076280A1
Принадлежит: HONDA MOTOR CO., LTD.

A combustion control device for an engine capable of operation over a wide range and in which the NOx discharged amount is small is provided, as well as a combustion method for a homogeneous lean air/fuel mixture. The combustion method for a homogeneous lean air/fuel mixture of the present invention forms a homogeneous lean air/fuel mixture inside of the cylinder of the engine, and then causes this homogeneous lean air/fuel mixture to combust by way of spark ignition. A temperature at which a steep rise in a laminar burning velocity occurs when changing a cylinder temperature under a pressure condition corresponding to compression top dead center is defined as an inflection-point temperature. With the combustion method of the present invention, the cylinder temperature at compression top dead center inside of the cylinder is raised to higher than the inflection-point temperature upon combusting the homogeneous lean air/fuel mixture. 1. A combustion control device for an internal combustion engine , comprising: an air/fuel mixture formation means for forming a homogeneous lean air/fuel mixture inside of a cylinder of the internal combustion engine; anda spark ignition means provided inside of the cylinder,wherein the internal combustion engine ignites to combust a homogeneous lean air/fuel mixture formed by the air/fuel mixture formation means by way of the spark ignition means, andwherein a temperature at which a steep rise in a laminar burning velocity occurs when changing a cylinder temperature under a pressure condition corresponding to compression top dead center is defined as an inflection-point temperature, and the cylinder temperature at compression top dead center inside of the cylinder when combusting the homogeneous lean air/fuel mixture is higher than the inflection-point temperature.2. The combustion control device for an internal combustion engine according to claim 1 , wherein the steep rise in the laminar burning velocity at the inflection-point ...

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06-01-2022 дата публикации

SUBCHAMBER DIESEL ENGINE

Номер: US20220003147A1
Принадлежит: Yanmar Power Technology co., Lt.

Provided is a subchamber diesel engine having excellent thermal efficiency and capable of appropriately controlling the ignition timing of fuel supplied to a combustion subchamber. A subchamber diesel engine according to the present invention comprises a main combustion chamber and a combustion subchamber communicated with each other by a communication hole, the diesel engine including: an electrically driven injector for injecting fuel into the combustion subchamber at a random timing; a fuel passage pipe connected to a fuel inlet of the injector; a fuel pump for supplying fuel to the fuel passage pipe; an engine operating state detector for detecting an engine operating state; and a controller, wherein the controller performs a preliminary fuel injection in the first half of an intake stroke, performs a main injection during a compression stroke, and after the main injection, performs an ignition control injection near a compression top dead center. 1. A subchamber diesel engine including a main combustion chamber and a combustion subchamber that communicates by a communication hole , comprising:an electrically driven injector that injects fuel into the combustion subchamber at arbitrary timing,a fuel passage pipe connected to a fuel inlet of the injector,a fuel pump that supplies fuel to the fuel passage pipe,an engine operation state detector that detects an engine operation state, anda controller, whereinthe controller performs a preliminary injection of fuel in a first half of an intake stroke, performs a main injection during a compression stroke, and performs an ignition control injection in the vicinity of a compression top dead center, after the main injection.2. The subchamber diesel engine according to claim 1 , wherein a spray center axis of fuel injected from the injector and a hole center axis of the communication hole are offset.3. The subchamber diesel engine according to claim 1 , wherein a glow plug is arranged in the combustion subchamber claim 1 ...

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06-01-2022 дата публикации

GASOLINE INTERNAL COMBUSTION ENGINE WITH ASSISTED COMPRESSION IGNITION

Номер: US20220003148A1
Принадлежит:

An internal combustion engine includes a combustion chamber with a cylinder head, a cylinder, and a piston. The internal combustion engine also includes at least one intake valve and at least one exhaust valve that are connected to the combustion chamber, a fuel injector that injects fuel into the combustion chamber, at least two ignition devices arranged in the combustion chamber, and control means that control the valves, the injector, and the ignition means. The control means operate the engine according to different combustion modes including a controlled ignition combustion mode, a compression ignition combustion mode, and an assisted compression ignition combustion mode. The control means activate the ignition means in the assisted compression ignition combustion mode. 1. An internal combustion engine comprising: a cylinder head,', 'a cylinder, and', 'a piston,, 'a combustion chamber, the combustion chamber comprisingat least one air intake valve and one exhaust valve connected to the combustion chamber,a fuel injector configured to inject fuel into the combustion chamber,at least two ignition devices arranged in the combustion chamber, andcontrol means configured to control the valves, the injector, and the ignition means,wherein the control means operate the engine according to different combustion modes including: a controlled ignition combustion mode, a compression ignition combustion mode, and an assisted compression ignition combustion mode, andwherein the control means are configured to activate the at least two ignition devices in the assisted compression ignition combustion mode.2. The engine according to claim 1 , wherein at least one of the ignition devices is a spark plug or a glow plug.3. The engine according to claim 1 , wherein the engine comprises a prechamber housing that houses one of the ignition devices.4. The engine according to claim 1 , wherein at least one of the ignition devices is located between 5% and 40% of a bore diameter of the ...

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07-01-2016 дата публикации

METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE

Номер: US20160003209A1
Принадлежит: DAIMLER AG

A method for operating a combustion engine is disclosed. In an embodiment, the method includes: generating several sparks to ignite a fuel-air mixture in a combustion chamber by an ignition device of the combustion engine, determining a combustion duration of at least one of the sparks, detecting a deviation of an actual operation from a target operation of the combustion engine at least depending on the combustion duration, compensating for the deviation by implementing at least one measure which influences a combustion of the fuel-air mixture in the combustion chamber, determining the combustion duration of the chronological first of the sparks, allocating the first spark to a first spark type or to a second spark type depending on the combustion duration, and implementing the at least one measure if at least one value which characterizes a frequency of one of the spark types exceeds a threshold value. 110.-. (canceled)11. A method for operating a combustion engine , comprising the steps of:generating a plurality of sparks to ignite a fuel-air mixture in a combustion chamber by an ignition device of the combustion engine;determining a combustion duration of at least one of the plurality of sparks;detecting a deviation of an actual operation from a target operation of the combustion engine depending on the combustion duration;compensating for the deviation by implementing a measure which influences a combustion of the fuel-air mixture in the combustion chamber;determining the combustion duration of a chronological first spark of the plurality of sparks;allocating the first spark to a first spark type or to a second spark type depending on the combustion duration of the first spark; andimplementing a measure if a value which characterizes a frequency of one of the spark types exceeds a threshold value.12. The method according to claim 11 , wherein the combustion duration is determined by the ignition device.13. The method according to claim 12 , wherein a signal ...

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04-01-2018 дата публикации

Methods and systems for open loop and closed loop control of an exhaust gas recirculation system

Номер: US20180003114A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for estimating exhaust gas recirculation (EGR) flow in an engine including an EGR system. In one example, a method may include operating the EGR system in an open loop feed forward mode based on an intake carbon di oxide sensor output above a threshold engine load and/or when a manifold absolute pressure (MAP) is above a threshold pressure, and operating the EGR system in a closed loop feedback mode based on a differential pressure sensor output when the engine load decreases below the threshold load and/or when the MAP decreases below the threshold pressure.

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02-01-2020 дата публикации

DIFFERENTIAL CYLINDER BALANCING FOR INTERNAL COMBUSTION ENGINE

Номер: US20200003131A1
Автор: Klingbeil Adam Edgar
Принадлежит:

A method of adjusting operation of an internal combustion engine includes injecting fuel into cylinders of the internal combustion engine (first fuel operation); obtaining a first fuel exhaust temperature profile during the first fuel operation; injecting two fuels into the cylinders in a duel fuel operation; obtaining a duel fuel exhaust temperature profile; and adjusting the injection quantity and/or an injection timing of one fuel in a cylinder(s), based on a difference between the first fuel exhaust temperature profile and the duel fuel exhaust temperature profile. Other methods of operating with single fuel and using sensors other than exhaust temperature sensors are disclosed. 1. A method of adjusting operation of an internal combustion engine , the method comprising:injecting a first fuel into a plurality of cylinders of the internal combustion engine in a first fuel operation;calculating a first exhaust temperature profile based on the first fuel operation; injecting a second fuel and the first fuel into the plurality of cylinders of the internal combustion engine in a duel fuel operation;calculating a duel fuel exhaust temperature profile based on the duel fuel operation; andadjusting at least one engine operating parameter in the duel fuel operation based on differentials between individual cylinder exhaust temperatures and a mean exhaust temperature of one or more exhaust temperature profiles.2. The method of claim 1 , wherein the first fuel comprises diesel.3. The method of claim 1 , wherein calculating the first fuel exhaust temperature profile comprises collecting an exhaust temperature from each of the plurality of cylinders.4. The method of claim 1 , wherein calculating the duel fuel exhaust temperature profile claim 1 , comprises collecting an exhaust temperature from each of the plurality of cylinders.5. The method of claim 1 , wherein calculating the first fuel exhaust temperature profile claim 1 , comprises collecting an exhaust temperature from ...

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02-01-2020 дата публикации

CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE

Номер: US20200003135A1
Принадлежит:

The center injection engine is an engine equipped with the direct injector and an ignition apparatus at center of a ceiling part of the combustion chamber. The positive tumble flow flows from the intake port side to the exhaust port side on the ceiling part side of the combustion chamber, and also flows from the exhaust port side to the intake port side on the piston top part side. The ECU calculates the injection timing of the direct injector based on the engine load. In the first injection control, the higher the engine load becomes, the more the end crank angle is retarded. 1. A control system for internal combustion engine comprising:a combustion chamber of an internal combustion engine in which positive tumble flow is generated;an ignition apparatus which is provided substantially at center of a ceiling part of the combustion chamber;a direct injector which is provided adjacent to the ignition apparatus; anda control unit which is configured to control injection timing of the direct injector based on load of the engine,wherein the control unit is further configured to:control the injection timing to a crank angle section corresponding to intake stroke of the engine in a low-load region of the engine; andcontrol at least end crank angle of the injection timing in a high-load region of the engine on a retard side as compared to that of the injection timing in the low-load region,wherein the end crank angle of the injection timing in the high-load region is within a crank angle section corresponding to a first half of compression stroke of the engine.2. The control system according to claim 1 , further comprising:a fuel tubing which is configured to provide the direct injector with fuel in compressed state,wherein the control unit is further configured to control fuel pressure in the fuel tubing based on the engine load when the engine load is in the high-load region,wherein the fuel pressure decreases as the engine load increases.3. The control system according ...

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07-01-2021 дата публикации

Adaptive any-fuel camless reciprocating engine

Номер: US20210003087A1
Принадлежит: UNIVERSITY OF CALIFORNIA

An adaptive, any-fuel reciprocating engine using sensor feedback integration of high-speed optical sensors with real-time control loops to adaptively manage the electronic actuation schemes over a range of engine loads and fuels. The engine uses one or more optical sensors to collect specific types of gas property data via a spectroscopic technique to adaptively control various components within the engine.

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03-01-2019 дата публикации

Dynamic charge compression ignition engine with multiple aftertreatment systems

Номер: US20190003442A1
Принадлежит: Tula Technology Inc

Methods, devices, controllers, and algorithms are described for operating an internal combustion engine wherein at least some firing opportunities utilize low temperature gasoline combustion (LTGC). Other firing opportunities may be skipped or utilize some other type of combustion, such as spark ignition. The nature of any particular firing opportunity is dynamically determined during engine operation, often on a firing opportunity by firing opportunity basis. Firings that utilize LTGC produce little, if any, nitrous oxides in the exhaust stream and thus, in some implementations, may require no aftertreatment system to remove them from the exhaust stream.

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03-01-2019 дата публикации

DYNAMIC CHARGE COMPRESSION IGNITION ENGINE WITH MULTIPLE AFTERTREATMENT SYSTEMS

Номер: US20190003443A1
Принадлежит:

Methods, devices, controllers, and algorithms are described for operating an internal combustion engine wherein at least some firing opportunities utilize low temperature gasoline combustion (LTGC). Other firing opportunities may be skipped or utilize some other type of combustion, such as spark ignition. The nature of any particular firing opportunity is dynamically determined during engine operation, often on a firing opportunity by firing opportunity basis. Firings that utilize LTGC produce little, if any, nitrous oxides in the exhaust stream and thus, in some implementations, may require no aftertreatment system to remove them from the exhaust stream. 1. A vehicle , comprising:an internal combustion engine having at least one cylinder, the at least one cylinder arranged to selectively operate in either a stoichiometric mode or a lean burn mode;a first aftertreatment system for treating exhaust from the at least one cylinder when operating in the stoichiometric mode; anda second aftertreatment system for treating exhaust from the at least one cylinder when operating in the lean burn mode.2. The vehicle of claim 1 , wherein the at least one cylinder further comprises a first exhaust valve arranged to provide a passageway to the first aftertreatment system and a second exhaust valve arranged to provide a second passageway to the second aftertreatment system.3. The vehicle of claim 2 , further comprising an engine controller to selectively open either the first exhaust valve or the second exhaust valve depending on if the at least one cylinder is operating in the stoichiometric mode or the lean burn mode respectively.4. The vehicle of claim 1 , further comprising an engine controller configured to control the operation of the at least one cylinder claim 1 , the engine controller configured to determine if the at least one cylinder should operate in stoichiometric mode or the lean burn mode on a working cycle per working cycle basis.5. The vehicle of claim 1 , ...

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03-01-2019 дата публикации

APPARATUS AND METHOD FOR CONTROLLING IGNITION TIMING OF ENGINE

Номер: US20190003444A1
Принадлежит:

An apparatus and a method for controlling an ignition timing of an engine may include a storage storing a map table in which correction torques are recorded; a receiver receiving first atmospheric information corresponding to a current position of a vehicle; a detector configured for measuring second atmospheric information corresponding to the current position of the vehicle; and a controller configured for detecting a corresponding correction torque from the map table on the basis of the first atmospheric information and the second atmospheric information, correcting a required torque using the detected correction torque, and controlling an ignition timing of an engine on the basis of the corrected required torque. 1. An apparatus for controlling an ignition timing of an engine , the apparatus comprising:a storage configured for storing a map table in which correction torques are recorded;a receiver configured for receiving first atmospheric information corresponding to a current position of a vehicle;a detector configured for measuring second atmospheric information corresponding to the current position of the vehicle; anda controller configured for detecting a corresponding correction torque from the map table on a basis of the first atmospheric information and the second atmospheric information, correcting a required torque using the detected correction torque, and controlling the ignition timing of the engine on a basis of the corrected required torque.2. The apparatus according to claim 1 , wherein the controller is configured to detect the corresponding correction torque from the map table on a basis of a mass of water vapor and a mass of moist air drawn into a cylinder of the engine.3. The apparatus according to claim 2 , wherein the controller is configured to detect the corresponding correction torque from the map table claim 2 , on a basis of a difference between a mass flow rate of the moist air drawn into the cylinder of the engine at a current ...

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03-01-2019 дата публикации

Methods and systems for spark timing control

Номер: US20190003445A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for adjust spark timing based on ambient humidity and transient tip-in parameters. In one example, a method may include, during a tip-in, retarding spark timing based on each of ambient humidity, peak air charge, and rate of change of air charge. As such, the spark timing retard may be higher at lower humidity levels, and the spark timing retard may be lower at higher humidity levels.

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13-01-2022 дата публикации

Control Device

Номер: US20220010762A1
Принадлежит: Hitachi Astemo Ltd

Due to changes in a flow of an air-fuel mixture in a cylinder, reliable ignition due to spark discharge may not be possible. Therefore, an ignition control unit 24 includes a secondary voltage calculation unit 31 that calculates an average value of a secondary voltage generated on a secondary side of an ignition coil, an irregular flow ratio calculation unit 32 that calculates a ratio of cycles in which the average value of the secondary voltage is equal to or less than a set average value with respect to a cycle of the internal combustion engine in a predetermined period as an irregular flow ratio indicating that the flow of the air-fuel mixture in the cylinder is irregular, and an ignition operation amount correction unit 37 that corrects an ignition operation amount so that the irregular flow ratio is equal to or less than the set ratio value that is the target to be reached of the irregular flow ratio.

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20-01-2022 дата публикации

ENGINE UNIT

Номер: US20220018305A1
Принадлежит:

An engine unit includes an engine including a cylinder injection valve that sprays fuel into a combustion chamber and an ignition plug that is able to ignite fuel sprayed from the cylinder injection valve. When expansion stroke injection drive of performing final fuel injection from the cylinder injection valve in an expansion stroke and igniting the fuel using the ignition plug in synchronization with the fuel injection in the expansion stroke is performed, upper and lower limits of an ignition timing are guarded such that the ignition timing is in a predetermined range centered on a final fuel injection start timing at a final determination timing of the ignition timing. 1. An engine unit for a vehicle , comprising:an engine including a cylinder injection valve that sprays fuel into a combustion chamber and an ignition plug that is able to ignite fuel sprayed from the cylinder injection valve; anda control device configured to control a plurality of fuel injections using the cylinder injection valve and ignition using the ignition plug,wherein, when expansion stroke injection drive of performing final fuel injection from the cylinder injection valve in an expansion stroke and igniting the fuel using the ignition plug in synchronization with the fuel injection in the expansion stroke is performed, the control device is configured to perform ignition timing adjustment control for guarding upper and lower limits of an ignition timing such that the ignition timing is in a predetermined range centered on a final fuel injection start timing at a final determination timing of the ignition timing.2. The engine unit according to claim 1 , wherein the control device is configured to perform the expansion stroke injection drive and the ignition timing adjustment control at the time of restarting of the engine after idling stop.3. The engine unit according to claim 1 , wherein the final determination timing is a control cycle timing closest to a timing before the compression ...

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12-01-2017 дата публикации

Control apparatus for internal combustion engine

Номер: US20170009727A1
Автор: Satoshi Nakamura
Принадлежит: Toyota Motor Corp

An ECU outputs an ignition signal and a discharge waveform control signal. An ignition device closes an ignition switching element in a period during which the ignition signal is input. After a stop of the input of the ignition signal and in a period of input of the discharge waveform control signal, the ignition device controls current flowing through a primary coil to a discharge current command value that is determined by the discharge waveform control signal by opening or closing a control switching element. A discharge control unit determines whether there is an abnormality. When it is determined that there is an abnormality, the ECU avoids control executed by the discharge control unit, and causes the discharge control unit to execute control during times of low-rotation and low-load operation of an internal combustion engine in order to determine whether the discharge control unit has returned to a normal state.

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12-01-2017 дата публикации

METHOD OF ENGINE CONTROL FOR ELIMINATING KNOCKING COMBUSTION DUE TO A MISFIRE FOR SPARK-IGNITED ENGINES EQUIPPED WITH EXTERNAL EXHAUST GAS RECIRCULATION

Номер: US20170009728A1
Автор: Kern Justin Michael
Принадлежит:

An engine control system and method of reducing knocking combustion in a spark-ignited internal combustion engine having exhaust gas recirculation by controlling engine timing based on detection of a misfire in an engine cylinder. The engine control system determines a number of combustion cycles indicative of an amount of time that will pass before misfire gas from the detected misfire will be recirculated to a combustion chamber of any cylinder of the internal combustion engine, and the engine control unit reduces or prevents knocking combustion by adjusting the ignition timing of at least one subsequent combustion cycle after the determined number of combustion cycles have occurred since the misfire was detected. 1. A method of reducing knocking combustion in a spark-ignited internal combustion engine having exhaust gas recirculation by controlling ignition timing , the method comprising:detecting a misfire in an engine cylinder;determining a number of combustion cycles indicative of an amount of time that will pass before misfire gas from the detected misfire will be recirculated to a combustion chamber of any cylinder of the internal combustion engine; andreducing or preventing knocking combustion by adjusting the ignition timing of at least one subsequent combustion cycle, the at least one subsequent combustion cycle occurring after the determined number of combustion cycles have occurred since the misfire was detected.2. The method of claim 1 , further comprising determining a second number of combustion cycles claim 1 , the second number of combustion cycles being indicative of a number of combustion cycles that are likely to experience increased fuel and air charge due to recirculated misfire gas claim 1 , andwherein reducing or preventing knocking combustion further includes adjusting ignition timing for the second number of combustion cycles.3. The method of claim 2 , further comprising applying an original ignition timing after the ignition timing has ...

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12-01-2017 дата публикации

Multi-level skip fire

Номер: US20170009729A1
Принадлежит: Tula Technology Inc

In one aspect, a method for controlling operation of an internal combustion engine is described. The engine is operated in a skip fire manner such that selected skipped working cycles are skipped and selected active working cycles are fired to deliver a desired engine output. A particular level of torque output is selected for each of the fired working chambers. Various methods, arrangements and systems related to the above method are also described.

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27-01-2022 дата публикации

IGNITION CONTROL DEVICE

Номер: US20220025840A1
Автор: IRIE Masashi
Принадлежит:

An ignition control device includes an ignition coil, a main ignition circuit unit for performing a main ignition operation, and an energy input circuit unit for performing an energy input operation. A main ignition signal generation circuit generates a main ignition signal such that a point in time when a waiting time has passed from a detection start time of a first signal of an ignition control signal at which a signal level of the ignition control signal changed from a first level to a second level for the first time, and the signal level of the ignition control signal is the second level, is a start of the main ignition signal, and a detection end time of a second signal of the ignition control signal at which the signal level of the ignition control signal shifts to the first level thereafter is an end of the main ignition signal. 1. An ignition control device comprising:an ignition coil which generates discharge energy in a secondary coil connected to a spark plug by increasing and decreasing a primary current flowing through a primary coil;a main ignition circuit unit which controls energization of the primary coil to perform a main ignition operation for causing the spark plug to generate a spark discharge; andan energy input circuit unit which performs an energy input operation for superimposing a current of the same polarity on a secondary current caused to flow through the secondary coil by the main ignition operation,wherein the ignition control device further comprises a signal separation circuit unit which receives an ignition control signal which is a signal combining a main ignition signal for controlling the main ignition operation, an energy input signal for controlling the energy input operation, and a target secondary current instruction signal, and separates one or more signals included in the received ignition control signal,the ignition control signal includes a first pulse signal and a second pulse signal, and is transmitted prior to the ...

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11-01-2018 дата публикации

ASSEMBLY AND METHOD FOR SAFE STARTING OF AN INTERNAL COMBUSTION ENGINE

Номер: US20180010531A1
Принадлежит:

An internal combustion engine for driving a working assembly with a clutch, including a combustion chamber into which a mixture of fuel and air is supplied, a spark plug to ignite the mixture, ignition of the mixture driving a piston operably coupled to a crank portion of the engine, a fuel supply system including a fuel valve and a throttle valve, a throttle position sensor configured to determine a position of the throttle valve, a speed sensor configured to determine engine speed, and an electronic control unit configured to control operation of the fuel valve and the spark plug, the electronic control unit being configured to initiate a speed limitation operation in response to a first position of the throttle valve at engine start-up, wherein the speed limitation operation continues until the throttle valve is moved from its first position. 1. An internal combustion engine arranged to be used with a power tool and for driving a working assembly of said power tool , said working assembly having a clutch , said engine comprising:a combustion chamber into which a mixture of fuel and air is supplied;a spark plug disposed proximate to the combustion chamber to ignite the mixture by generating a spark, ignition of the mixture driving a piston operably coupled to a crank portion of the engine;a fuel supply system including a fuel valve and the throttle valve, the fuel valve being arranged to control fuel provision into the mixture and the throttle valve being adjustable to control the provision of air into the mixture;a throttle position sensor configured to determine a position of the throttle valve within a full range of operation of the throttle valve;a speed sensor configured to determine engine speed; anda controller configured to control the operation of the fuel valve and the spark plug, the controller being configured toreceive an indication of the engine speed from the speed sensor and to determine whether the engine speed exceeds a threshold value, and, if ...

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11-01-2018 дата публикации

METHOD FOR STARTING AN INTERNAL COMBUSTION ENGINE

Номер: US20180010536A1
Принадлежит:

A method for starting an internal combustion engine comprises the steps of: providing an internal combustion engine having at least one cylinder and a piston supported at a crankshaft for repeated reciprocal movement in the cylinder so as to define a main combustion chamber, the internal combustion engine further having an ignition device arranged in said cylinder with an igniter portion and a fuel injector which are both arranged at a pre-chamber, wherein the pre-chamber has a plurality of orifices for providing fluid communication between said pre-chamber and the main combustion chamber, injecting fuel in the pre-chamber, and igniting the injected fuel in the pre-chamber for pre-heating of the pre-chamber prior to injecting fuel in the main combustion chamber for combusting the injected fuel in the main combustion chamber. 1. A method for starting an internal combustion engine comprising the steps of:providing an internal combustion engine having at least one cylinder and a piston supported at a crankshaft for repeated reciprocal movement in the cylinder so as to define a main combustion chamber, the internal combustion engine further having an ignition device arranged in said cylinder with an igniter portion and a fuel injector which are both arranged at a pre-chamber, wherein the pre-chamber has a plurality of orifices for providing fluid communication between said pre-chamber and the main combustion chamber;injecting fuel in the pre-chamber; andigniting the injected fuel in the pre-chamber for pre-heating of the pre-chamber prior to injecting fuel in the main combustion chamber for combusting the injected fuel in the main combustion chamber.2. The method according to claim 1 , wherein the step of injecting fuel comprises injecting fuel in the pre-chamber only.3. The method according to claim 2 , wherein the step of injecting fuel in the pre-chamber comprises multiple injections of fuel via fuel injector in the pre-chamber.4. The method according to claim 2 , ...

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11-01-2018 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180010538A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

In a catalyst warming-up control, a first time injection is performed by an injector in an intake stroke. A second time injection is performed with an amount smaller than the first time injection in an expansion stroke after a compression top dead center. In the catalyst warming-up control, an interval from the start of the ignition period of an spark plug to the completion of the second time injection is controlled by the ECU so that the initial flame generated from an air-fuel mixture containing the fuel spray injected by the first time injection is brought into contact with the fuel spray injected by the second time injection. 1. A control device for an internal combustion engine , the internal combustion engine comprising:an injector which is provided in an upper part of a combustion chamber and is configured to inject fuel from a plurality of injection holes into a cylinder;a spark plug which is configured to ignite an air-fuel mixture in the cylinder using a discharge spark, the spark plug being provided on a downstream side of the fuel injected from the plurality of injection holes and above a contour surface of a fuel spray pattern which is closest to the spark plug among the fuel spray patterns injected from the plurality of injection holes; andan exhaust gas cleaning catalyst which is configured to clean an exhaust gas from the combustion chamber,wherein in order to activate the exhaust gas cleaning catalyst, the control device is configured to control the spark plug so as to generate the discharge spark in an ignition period retarded from a compression top dead center, and control the injector so as to perform first injection at a timing advanced from the compression top dead center and second injection at a timing retarded from the compression top dead center, the second injection being performed so that an injection period overlaps with at least a part of the ignition period, andwhen it is determined that a parameter related to combustion fluctuation ...

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11-01-2018 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180010540A1
Принадлежит:

A control device is configured to perform, when it is estimated that a combustion fluctuation increases, estimation related to an ignition delay for initial flame generated from a discharge spark and an air-fuel mixture containing fuel spray injected by intake stroke injection. When it is estimated that the ignition delay for the initial flame is increased from that before the increase in the combustion fluctuation, an injection amount in expansion stroke injection is reduced in a next time cycle. When it is estimated that the ignition delay for the initial flame is reduced from that before the increase in the combustion fluctuation, the injection amount in expansion stroke injection is increased in a next time cycle. 1. A control device for controlling an internal combustion engine , the internal combustion engine comprising:an injector which is provided in an upper part of a combustion chamber and is configured to inject fuel directly into a cylinder;a spark plug which is configured to ignite an air-fuel mixture in the cylinder using a discharge spark, the spark plug being provided in the upper part of the combustion chamber and on a downstream side of the injector in a flow direction of a tumble flow formed in the combustion chamber, and being located above a contour surface of a fuel spray pattern injected from the injector toward the spark plug; andan exhaust gas cleaning catalyst which is configured to clean an exhaust gas from the combustion chamber,wherein in order to activate the exhaust gas cleaning catalyst, the control device is configured to control the spark plug so as to generate a discharge spark in an ignition period retarded from a compression top dead center, and control the injector so as to perform a first injection at a timing advanced from the compression top dead center and a second injection at a timing retarded from the compression top dead center, the second injection being performed so that an injection period overlaps with at least a ...

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11-01-2018 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180010548A1
Автор: HOSHI Kenji
Принадлежит:

An intake stroke injection and a compression stroke injection are performed during catalyst warm-up control (upper section in FIG. ). During the catalyst warm-up control, a discharge period at an electrode portion is set on a retard side of compression top dead center, and an expansion stroke injection is performed during the discharge period. However, when a distance between a spray contour surface and the electrode portion increases, an additional injection (first injection) is performed in advance of the expansion stroke injection (second injection) (lower section in FIG. ). The additional injection is performed at a timing that is on the retard side of compression top dead center and is on an advance side relative to a start timing of the discharge at the electrode portion. 1. A control device for controlling an internal combustion engine , the internal combustion engine comprising:an injector which is provided in an upper portion of a combustion chamber and is configured to inject fuel directly into a cylinder;a spark plug which is configured to ignite an air-fuel mixture inside a cylinder using a discharge spark that is generated at an electrode portion, and which is provided at a position that is at the upper portion of the combustion chamber and is on a downstream side relative to the injector in a flow direction of a tumble flow that is formed inside the combustion chamber, and is provided so that a position of the electrode portion is above a contour surface of a fuel spray that is injected toward the spark plug from the injector; andan exhaust gas purification catalyst which is configured to purify exhaust gas from the combustion chamber;the control device which is configured to control at least fuel injection by the injector and a discharge at the electrode portion by the spark plug,wherein the control device is further configured to:control the injector so as to perform an intake stroke injection and an expansion stroke injection that activate the ...

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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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14-01-2021 дата публикации

ENGINE PHASE DETERMINATION AND CONTROL

Номер: US20210010449A1
Принадлежит:

In at least some implementations, a method of controlling spark events in an engine includes determining for at least two engine revolutions in a four-stroke engine at least one characteristic of the primary coil voltage for a spark event, determining, based upon the characteristic of the primary coil voltage, which of the spark events is associated with a compression phase and which of the spark events is associated with an exhaust phase of engine operation, and providing spark events in subsequent engine revolutions that are associated with the compression phase of engine operation but not in revolutions associated with the exhaust phase of engine operation. In at least some implementations, the characteristic is the duration of the spark event as determined by changes in the primary coil voltage, and the characteristic may be that the duration that the primary coil voltage is above a threshold voltage. 1. A method of controlling spark events in a combustion engine , comprising:determining for at least two engine revolutions in a four-stroke engine at least one characteristic of the primary coil voltage for a spark event;determining, based upon the characteristic of the primary coil voltage, which of the spark events is associated with a compression phase of engine operation and which of the spark events is associated with an exhaust phase of engine operation; andproviding spark events in subsequent engine revolutions that are associated with the compression phase of engine operation but not in revolutions associated with the exhaust phase of engine operation.2. The method of wherein the characteristic is the duration of the spark event as determined by changes in the primary coil voltage.3. The method of wherein the characteristic is the duration that the primary coil voltage is above a threshold voltage.4. (canceled)5. A method of providing fuel to a multi-cylinder engine from a single control valve claim 1 , comprising:determining the intake phase of engine ...

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10-01-2019 дата публикации

METHOD AND APPARATUS FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

Номер: US20190010890A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A direct-injection internal combustion engine is described and includes a pressure sensor that is disposed to monitor in-cylinder combustion pressure. A method, executed as a control routine in an attached controller, includes monitoring engine speed, engine load, temperature and combustion pressure. Combustion variation parameters are determined based upon the combustion pressure. A desired state for a combustion parameter can be determined based upon the engine speed, the engine load, and the temperature, and an adjustment to the desired state for the combustion parameter can be determined based upon the combustion variation parameters, wherein the adjustment to the desired state is selected to achieve acceptable states for the combustion variation parameters. Operation of the internal combustion engine is controlled based upon the desired state for the combustion parameter and the adjustment to the desired state for the combustion parameter. 1. A method for controlling operation of a direct-injection internal combustion engine , wherein the internal combustion engine includes a pressure sensor disposed to monitor in-cylinder pressure , the method comprising:monitoring engine speed, engine load, temperature;monitoring, via the pressure sensor, a combustion pressure;determining desired states for combustion variation parameters based upon the combustion pressure, wherein the combustion variation parameters include a ringing index and a coefficient of variation (COV);determining a desired state for a combustion parameter based upon the engine speed, the engine load, and the temperature; determining a desired ringing index and a measured ringing index,', 'determining a first adjustment in the desired state for the combustion parameter based upon a difference between desired ringing index and a measured ringing index,', 'determining a desired COV and a measured COV,', 'determining a second adjustment in the desired state for the combustion parameter based upon a ...

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03-02-2022 дата публикации

Engine knock control system for carburetor engines

Номер: US20220034289A1
Автор: Clarence Huckaby
Принадлежит: Individual

An engine-knock controlling system for a carburetor-based engine includes one or more cylinders in which combustion occurs, wherein the system also includes a plurality of knock sensors coupled to an engine block, a first wiring harness, a first control unit, a second wiring harness, and a second control unit or an intermediate control unit, or a second control unit and intermediate control unit. The knock sensor(s) detects threatening engine-knock noise as an audible signal and transmits a signal through the wiring harnesses and control units to generate an ignition retarding action to correct the engine misfire and eliminate the knock/ping. Once the engine knock event is resolved, the processor of the first control unit transmits via the second wiring harness a signal to the second control unit or to the intermediate control unit, or to the second control unit and the intermediate control unit, to allow full-advance of ignition timing.

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19-01-2017 дата публикации

Control Device for Internal Combustion Engine and Control Method for Cooling Device

Номер: US20170016380A1
Автор: TOYAMA Yuichi
Принадлежит:

The invention of the present application relates to a control device and a control method for a cooling device. A cooling device includes a first cooling water passage of a cylinder head, a second cooling water passage of a cylinder block, a control valve that changes a ratio between a flow rate of the first cooling water passage and a flow rate of the second cooling water passage, and a water pump. Then, the control device controls the control valve so that a ratio of the flow rate of the first cooling water passage increases when a cooling water circulation flow rate is insufficient due to failure of the water pump. Accordingly, it is possible to suppress damage of an engine body while suppressing deterioration in traveling performance of a vehicle when failure occurs in the water pump. 116.-. (canceled)17. A control device for an internal combustion engine configured to control a cooling device including a first cooling medium passage provided in a cylinder head of an internal combustion engine , a second cooling medium passage provided in a cylinder block of the internal combustion engine , a control valve that changes a ratio between a refrigerant flow rate of the first cooling medium passage and a refrigerant flow rate of the second cooling medium passage , and a pump that circulates the refrigerant , the control device comprising:a valve control unit that controls the control valve such that a ratio of the refrigerant flow rate of the first cooling medium passage becomes larger than that of a case where the pump is not in an abnormal state when the pump is in the abnormal state where an discharge flow rate of an operation state of causing the pump to eject a refrigerant is lower than an intended discharge flow rate by a predetermined value or more.18. The control device for an internal combustion engine according to claim 17 ,wherein the pump is an electric pump.19. The control device for an internal combustion engine according to claim 18 ,wherein the valve ...

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19-01-2017 дата публикации

METHOD AND APPARATUS FOR DETERMINING A VALUE OF A VARIABLE PARAMETER

Номер: US20170016423A1
Принадлежит: Freescale Semiconductor, Inc.

A control methodology and apparatus for an engine suitable for use in capacitor discharge ignition systems for internal combustion engines or brushless DC motors is provided, which make use of a simple logic block to determine for instance an ignition timing advance angle or duty cycle signal based on actual engine speed versus engine control parameter data stored in a table, which is a read-only memory, preferably configurable. To minimise memory space, a small number of values of engine control parameter versus engine speed are stored in the table and the logic block determines the required engine control signal for a measured value of engine speed by an interpolation process, preferably linear interpolation. 1. A method for determining an engine control parameter as a function of a variable parameter relating to an engine speed , the method comprising: providing in a table , a set of data points , each data point comprising a value of the variable parameter relating to engine speed and a value of the engine control parameter corresponding thereto in accordance with said function , receiving a measured value of the variable parameter relating to the engine speed , extracting from the table , two data points from the set of data points which are lower and upper to the measured value of the variable parameter relating to the engine speed , and determining a value of the engine control parameter by interpolating between the extracted two data points.2. The method of claim 1 , wherein interpolating between the extracted two data points is performed using linear interpolation claim 1 , wherein said extracted two data points are consecutive claim 1 , in particular the two extracted data points are closest lower and closest upper to the measured value of the variable parameter relating to the engine speed.3. The method of claim 1 , wherein the engine control parameter is an ignition timing advance angle of an internal combustion engine and the variable parameter is a ...

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21-01-2016 дата публикации

METHOD AND APPARATUS FOR CONTROLLING OPERATION OF AN INTERNAL COMBUSTION ENGINE

Номер: US20160017834A1
Принадлежит:

An internal combustion engine is configured to operate in a homogeneous-charge compression-ignition combustion mode. Operation of the engine includes determining a combustion pressure parameter for each cylinder. Fueling for each cylinder is controlled responsive to a target state for the combustion pressure parameter for the corresponding cylinder. An end-of-injection timing and a corresponding spark ignition timing for each cylinder are controlled responsive to a target mass-burn-fraction point for an engine operating point.

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21-01-2016 дата публикации

SYSTEMS AND METHODS FOR DEDICATED EGR CYLINDER EXHAUST GAS TEMPERATURE CONTROL

Номер: US20160017847A1
Принадлежит:

Systems and methods for increasing EGR gas temperature for an engine that includes at least one dedicated EGR cylinder. The dedicated EGR cylinder may provide exhaust gas to engine cylinders and the exhaust gas does not include exhaust gases from cylinders other than the dedicated EGR cylinder. The dedicated EGR cylinder may allow the engine to operate at higher EGR dilution levels.

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18-01-2018 дата публикации

Fuel management system for variable ethanol octane enhancement of gasoline engines

Номер: US20180016998A1
Принадлежит: Massachusetts Institute of Technology

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

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18-01-2018 дата публикации

Knock detecting device

Номер: US20180017004A1
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

Provided is a knock detecting device capable of ensuring knock detection accuracy irrespective of fuel injection conditions even when a period during which injection-valve noise occurs overlaps with a knock determination period. An ECU 9 subjects signals output from a knock sensor, which detects vibrations of an internal combustion engine, to frequency analysis to calculate frequency components ( 501 ). The ECU 9 calculates a background level that indicates the average of the frequency components ( 503 ). The ECU 9 stores, in association with each other, the number of fuel injections, which indicates the number of fuel injections in a predetermined time period during one combustion cycle, with a learning value, which indicates a frequency-component correction amount ( 507 ). The ECU 9 determines the presence or absence of a knock ( 504 ) on the basis of a knock index, which indicates the ratio of the difference between each frequency component and the learning value corresponding to the number of fuel injections, to the background level ( 503 ).

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15-01-2015 дата публикации

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20150019112A1
Принадлежит: Hitachi Automotive Systems, Ltd.

Knocking and misfire are judged by detecting combustion ions generated in a combustion chamber with an ion sensor, obtaining an integral signal by integrating the ion signal, and comparing the integral signal with a misfire judgment value and a knocking judgment value based on a signal obtained by averaging integral signals of prescribed past cycles. It is possible to: reduce a computation load by detecting misfire and knocking with an identical ion sensor and carrying out a judgment treatment with identical judgment function logic; and detect trace knocking by setting a knocking judgment threshold value and hence increase the accuracy of ignition timing control. 1. A control device for an internal combustion engine having: an ignition signal generation means to output an ignition signal including an ignition timing and a dwell time for a primary coil to an ignition coil in the internal combustion engine; an ion signal detection means to detect an ion signal generated in accordance with the combustion of an air-fuel mixture in a cylinder; an integral means , after the interruption of the ignition signal , to set a prescribed delay time and mask and integrate an ion signal caused by an initial flame in the ion signal; a background level generation means to average the integral values of ion signals of prescribed past combustion cycles and thus obtain a background level; and a knocking judgment means to compare a prescribed threshold value determined by the background level with an instant ion signal integral value and judge the case where the instant ion signal integral value exceeds the prescribed threshold value as knocking.2. A control device for an internal combustion engine having: an ignition signal generation means to output an ignition signal including an ignition timing and a dwell time for a primary coil to an ignition coil in the internal combustion engine; an ion signal detection means to detect an ion signal generated in accordance with the combustion of ...

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17-04-2014 дата публикации

SYSTEM AND METHOD FOR DELIVERING SPARK TO AN ENGINE

Номер: US20140102412A1
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A system and method for delivering spark to an engine is disclosed. In one example, a single conductor carries a spark signal that is indicative of a desired spark advance for a plurality of ignition coils. The system and method may reduce wiring complexity for spark plugs that are supplied energy via two ignition coils. 1. A method for providing spark to an engine , comprising:supplying two different ignition coil charging current times via a single conductor, the two different ignition coil charging current times supplied to a first ignition coil and a second ignition coil; anddischarging the first ignition coil and the second ignition coil to a single spark plug.2. The method of claim 1 , further comprising converting the two different ignition coil charging current times into two ignition coil commands.3. The method of claim 2 , further comprising operating two ignition coil drivers in response to the two ignition coil commands.4. The method of claim 1 , where a first ignition coil charging current time is provided to the first ignition coil and where a second ignition coil charging current time is provided to the second ignition coil claim 1 , and further comprising an over dwell precaution control that resets the second coil to an off state.5. The method of claim 4 , further comprising supplying the first ignition coil charging current time at a first engine crankshaft angle and supplying the second ignition coil charging current time at a second engine crankshaft angle.6. The method of claim 5 , where the first engine crankshaft angle is retarded from the second engine crankshaft angle.7. The method of claim 5 , where the first engine crankshaft angle is advanced from the second engine crankshaft angle.8. A method for providing spark to an engine claim 5 , comprising:supplying a first ignition coil charging current time to a first ignition coil via a first conductor;supplying a second ignition coil charging current time to a second ignition coil via a second ...

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17-04-2014 дата публикации

IGNITION TIMING CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE

Номер: US20140102413A1
Автор: Sasaki Yuji
Принадлежит: NISSAN MOTOR CO., LTD.

The present invention is provided with: an injection timing detection unit; an engine rotation speed detection unit; an engine load detection unit; and a storing unit for storing control data of the variation in optimal ignition timing with respect to engine speed and engine load, and control data of correction coefficient pertaining to optimal ignition timing with respect to the engine load at a specific fuel injection timing. Referring to the control data, the variation in the optimal ignition timing is determined based on the detected fuel injection timing and the detected engine rotation speed; and, referring to the control data, the variation in the optimal ignition timing is determined based on the specific fuel injection timing and the detected engine speed, and the deviation between the respective variation in the optimal injection timing is determined. 1. An ignition timing control apparatus for a spark ignition internal combustion engine which injects fuel directly into a combustion chamber , comprising:an injection timing detection unit for detecting a fuel injection timing;a rotation speed detection unit for detecting an engine rotation speed;a load detection unit for detecting an engine load;a storing unit for storing control data of variation in an optimal ignition timing with respect to an engine rotation speed and a fuel injection timing and control data of a correction coefficient of the optimal ignition timing with respect to an engine load; anda control unit for obtaining an optimal ignition timing based on the fuel injection timing detected by the injection timing detection unit, the engine rotation speed detected by the rotation speed detection unit and the engine load detected by the load detection unit, wherein a variation in the optimal ignition timing based on the detected fuel injection timing and the detected engine rotation speed by referring to the control data;', 'a variation in the optimal ignition timing based on a previously ...

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17-01-2019 дата публикации

IGNITION TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20190017451A1
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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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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17-01-2019 дата публикации

CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20190017461A1
Принадлежит: Hitachi Automotive Systems, Ltd.

Provided is a control apparatus for an internal combustion engine which can achieve required torque and avoid the risk of an accidental fire even in the case where an error occurs in final injection termination timing. A microcomputer calculates T which has been further advanced from T which precedes ignition timing by time required for vaporization of fuel injected into a cylinder of an internal combustion engine. The microcomputer determines whether final injection termination timing (T) comes after T or T. When it has been determined that final injection termination timing (T) comes after T or T, the microcomputer controls an injector or an ignition device so as to secure time for vaporization of the fuel injected into the cylinder of the internal combustion engine while satisfying a fuel injection amount required in one combustion cycle. 1. A control apparatus for an internal combustion engine , comprising:a calculation part which calculates second timing which has been further advanced from first timing which precedes ignition timing by time required for vaporization of fuel injected into a cylinder of an internal combustion engine;a determination part which determines whether final injection termination timing, which indicates timing of termination of final fuel injection in one combustion cycle, comes after the first timing or the second timing; anda first control part which controls an injector or an ignition device so as to secure time for vaporization of the fuel injected into the cylinder of the internal combustion engine while satisfying a fuel injection amount required in the one combustion cycle when it has been determined that the final injection termination timing comes after the first timing or the second timing.2. The control apparatus for an internal combustion engine according to claim 1 , whereinthe first control part advances timing at which initial fuel injection starts in the one combustion cycle when it has been determined that the final ...

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17-01-2019 дата публикации

SYSTEM AND METHOD FOR VALVE EVENT DETECTION AND CONTROL

Номер: US20190017487A1
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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16-01-2020 дата публикации

METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE

Номер: US20200018280A1
Принадлежит:

A method and a device are provided for controlling an internal combustion engine, a knock sensor being provided for acquiring combustion signals of the internal combustion engine. Devices are also provided that, during running operation of the internal combustion engine, select operating ranges of the internal combustion engine that are suitable for a determination of fuel quality, and carry out a determination of the fuel quality in these ranges on the basis of signals of the knock sensor. 1. A method for controlling an internal combustion engine , a knock sensor being provided for acquiring combustion signals of the internal combustion engine , the method comprising:selecting, during running operation of the internal combustion engine, operating ranges of the internal combustion engine that are suitable for determining fuel quality; anddetermining a fuel quality in the selected operating ranges on the basis of signals of the knock sensor.2. The method as recited in claim 1 , wherein in an internal combustion engine having a plurality of cylinders claim 1 , only some of the cylinders are selected as suitable for determining the fuel quality.3. The method as recited in claim 1 , wherein only some of the load and rotational speed regions are selected as suitable for determining the fuel quality.4. The method as recited in claim 1 , wherein only operating ranges that have been realized for a specified length of time during driving operation are selected as suitable for determining the fuel quality.5. The method as recited in claim 1 , wherein an ignition angle adjustment of the knock regulation system is selected as a parameter for determining the fuel quality.6. The method as recited in claim 5 , wherein the ignition angle adjustment of the knock regulation system in the selected operating ranges is compared to a threshold value.7. The method as recited in claim 6 , wherein for determining the fuel quality claim 6 , it is determined how long the ignition angle ...

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28-01-2016 дата публикации

PREDICTIVE CORRECTION IN INTERNAL COMBUSTION ENGINES

Номер: US20160025060A1
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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25-01-2018 дата публикации

Refueling controller

Номер: US20180023495A1
Автор: Aed M. Dudar
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A controller includes a processor and a memory storing processor-executable instructions. The processor is programmed to receive a signal indicating engine knocking, adjust an octane requirement in response to the signal, and request a fuel for refueling meeting the octane requirement. The processor may also be programmed to avoid a gas station of most recent refueling in response to the signal and retard ignition timing of a spark plug in response to the signal.

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25-01-2018 дата публикации

IGNITION TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Номер: US20180023530A1
Автор: SHINOHARA Yoshitsugu
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An ignition timing control device for an internal combustion engine including: a setting unit configured to set a target ignition timing of the internal combustion engine based on a reference ignition timing and an advance correction amount; a start determination unit configured to determine, based on change in an alcohol concentration, whether or not the fuel injected from a fuel injection valve starts to switch from a first fuel to a second fuel higher in the alcohol concentration than the first fuel; a completion determination unit configured to determine whether or not switching to the second fuel is completed; a restriction unit configured to restrict the advance correction amount during a switching period to the advance correction amount corresponding to the alcohol concentration of the first fuel or lower; and a cancel unit configured to cancel restriction of the advance correction amount after the completion of the switching is determined. 1. An ignition timing control device for an internal combustion engine configured to use a fuel containing alcohol , the internal combustion engine includinga fuel injection valve,a delivery pipe configured to supply the fuel to the fuel injection valve,a fuel pipe configured to communicate with the delivery pipe,a fuel tank, andan alcohol concentration sensor provided to one of the fuel pipe and the fuel tank, the alcohol concentration sensor being configured to detect a concentration of alcohol in the fuel,the ignition timing control device comprisingan electronic control unit configured to:acquire an operating state of the internal combustion engine;acquire the concentration of alcohol in the fuel based on the alcohol concentration detected with the alcohol concentration sensor;calculate a reference ignition timing of the internal combustion engine based on the operating state;calculate an advance correction amount of an ignition timing such that an advance amount of the ignition timing increases more as the alcohol ...

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10-02-2022 дата публикации

CONTROL METHOD, DEVICE AND STORAGE MEDIUM FOR ENGINE OPERATION

Номер: US20220042474A1
Автор: "Chen Qian", JIN Beiwu
Принадлежит:

A control method, a control device, an electronic device and a storage medium for engine operation are provided. The method includes: obtaining a rotational speed and a temperature of an engine at a current time and determining a reference value of the control parameter of the engine based on the rotational speed and the temperature; detecting a composite operating state of the engine at the current time and determining an offset of the control parameter corresponding to each operating state in the composite operating state; adding the reference value of the control parameter and the offset of the control parameter corresponding to each operating state in the composite operating state to obtain a final value of the control parameter; and controlling the engine at the current time according to the final value of the control parameter. 1. A control method for engine operation , wherein the method comprises:obtaining a rotational speed and a temperature of an engine at a current time and determining a reference value of the control parameter of the engine based on the rotational speed and the temperature, wherein the control parameter comprises at least one of an ignition angle parameter and a fuel injection parameter;detecting a composite operating state of the engine at the current time and determining an offset of the control parameter corresponding to each operating state in the composite operating state;adding the reference value of the control parameter and the offset of the control parameter corresponding to each operating state in the composite operating state to obtain a final value of the control parameter; andcontrolling the engine at the current time according to the final value of the control parameter.2. The method of claim 1 , wherein the determining a reference value of the control parameter of the engine based on the rotational speed and the temperature comprises:obtaining a first table of preset control parameters, wherein the first table comprises ...

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10-02-2022 дата публикации

ADAPTIVE-ADJUSTMENT METHOD, ELECTRONIC DEVICE AND STORAGE MEDIUM FOR ENGINE OPERATION

Номер: US20220042487A1
Автор: "Chen Qian", JIN Beiwu
Принадлежит:

An adaptive-adjustment method for engine operation includes: upon receipt of an instruction, reducing a ratio of air to fuel of an engine until a rotational speed after the reduction is less than the rotation speed before the reduction, and a rotational speed difference between the rotational speeds before and after the reduction is greater than a preset drop value; increasing the ratio of air to fuel of the engine until the rotational speed after the increase is less than the rotational speed before the increase, and a rotational speed difference between the rotational speeds before and after the increase is greater than the preset drop value; determining an offset of a control parameter corresponding to an adaptive-adjustment state for the engine according to a reduced ratio of air to fuel and an increased ratio of air to fuel; and controlling the engine at a current time according to the offset. 1. An adaptive-adjustment method for engine operation , wherein the method comprises:upon receipt of an adaptive-adjustment instruction, reducing a ratio of air to fuel of an engine by a first preset step until a rotational speed after the reduction is less than the rotational speed before the reduction, and a rotational speed difference between the rotational speed before the reduction and the rotational speed after the reduction is greater than a preset drop value;increasing the ratio of air to fuel of the engine by a second preset step until the rotational speed after the increase is less than the rotational speed before the increase, and a rotational speed difference between the rotational speed before the increase and the rotational speed after the increase is greater than the preset drop value;determining a first offset of a control parameter corresponding to an adaptive-adjustment state for the engine according to a reduced ratio of air to fuel and an increased ratio of air to fuel, wherein the control parameter comprises at least one of an ignition angle parameter ...

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24-01-2019 дата публикации

CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

Номер: US20190024556A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

When a request for temperature increase of a three-way catalyst is made, a CPU executes dither control in which one of a plurality of cylinders is set as a rich combustion cylinder with a richer air-fuel ratio than a stoichiometric air-fuel ratio and the remaining cylinders are set as lean combustion cylinders with a leaner air-fuel ratio than the stoichiometric air-fuel ratio. When not executing the dither control, the CPU learns a rich learning value that is a learning value of a degree of a rich imbalance based on an upstream-side air-fuel ratio. When the rich learning value is greater than or equal to a predetermined value, the CPU prohibits the dither control. 1. A control apparatus for an internal combustion engine , the internal combustion engine including:a catalyst that purifies exhaust discharged from a plurality of cylinders; anda fuel injection valve provided for each of the plurality of cylinders, whereinthe control apparatus is configured to execute:a dither control process that operates the fuel injection valves so as to set at least one of the plurality of cylinders as a lean combustion cylinder, which has an air-fuel ratio that is leaner than a stoichiometric air-fuel ratio, and to set at least a further one of the plurality of cylinders as a rich combustion cylinder, which has an air-fuel ratio that is richer than the stoichiometric air-fuel ratio;an imbalance learning process that learns a variation degree among injection amounts of the fuel injection valves of the plurality of cylinders when the fuel injection valves are operated to equalize air-fuel ratios of the plurality of cylinders; anda limiting process that limits the dither control process to reduce a difference between a richest one and a leanest one of the air-fuel ratios of the plurality of cylinders when the variation degree is greater than or equal to a predetermined value.2. The control apparatus for an internal combustion engine according to claim 1 , wherein the control apparatus ...

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29-01-2015 дата публикации

METHODS AND SYSTEMS FOR HUMIDITY DETECTION VIA AN EXHAUST GAS SENSOR

Номер: US20150027103A1
Принадлежит:

Various methods and system are described for determining ambient humidity via an exhaust gas sensor disposed in an exhaust system of an engine. In one example, a reference voltage of the sensor is modulated between a first and second voltage during non-fueling conditions of the engine. The ambient humidity is determined based on an average change in pumping current while the voltage is modulated. 1. A method for an engine system , comprising: modulating a reference voltage of an exhaust gas sensor between a first reference voltage and a second reference voltage;', 'generating an indication of ambient humidity based on an average change in pumping current of the sensor during the modulating; and', 'during subsequent engine fueling conditions, adjusting an engine actuator based on the indication of ambient humidity., 'during engine non-fueling conditions, where at least one intake valve and one exhaust valve are operating and a duration since fuel shut off is less than a threshold duration2. The method of claim 1 , wherein the sensor is an exhaust gas oxygen sensor.3. The method of claim 1 , wherein modulating the reference voltage includes switching the reference voltage between the first voltage and the second voltage at a rate.4. The method of claim 3 , wherein the first voltage is 450 mV and the second voltage is 950 mV.5. The method of claim 3 , wherein generating the indication of ambient humidity includes averaging a change in pumping current for each modulation between the first voltage and the second voltage.6. The method of claim 1 , wherein the engine non-fueling conditions include deceleration fuel shut off.7. The method of claim 1 , wherein the engine actuator adjusts an amount of exhaust gas recirculation claim 1 , and claim 1 , in at least one condition claim 1 , adjusting the amount of exhaust gas recirculation includes reducing the amount of exhaust gas recirculation responsive to an indication of higher humidity.8. The method of claim 1 , further ...

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24-01-2019 дата публикации

Internal combustion engine control apparatus

Номер: US20190024600A1
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

Fuel injection control of an internal combustion engine requires an optimized fuel amount that can be burned completely with oxygen in intake air to be supplied, but the oxygen concentration in the atmospheric air is affected by humidity. By separately calculating a dry air flow rate that directly affects the oxygen amount and a humidity flow rate that is a change factor of the oxygen concentration in the intake air of the internal combustion engine, the fuel can be supplied to the cylinder of the internal combustion engine at an optimized air-fuel ratio. In addition, highly precise control involving EGR for flowback of a part of the exhaust gas flowing in the exhaust pipe to the intake pipe can also be achieved.

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24-01-2019 дата публикации

CONTROLLER AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

Номер: US20190024603A1
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A controller for an internal combustion engine is configured to execute a dither control process, a purge control process, and a limiting process. The dither control process operates the fuel injection valves such that at least one of the cylinders is a lean combustion cylinder, in which the air-fuel ratio is leaner than the stoichiometric air-fuel ratio, and at least another one of the cylinders is a rich combustion cylinder, in which the air-fuel ratio is richer than the stoichiometric air-fuel ratio. The purge control process controls the purge flow rate by operating the adjustment device. The limiting process limits the purge control process such that, when the dither control process is being executed, the purge flow rate is reduced as compared to a case in which the dither control process is not being executed. 1. A controller for an internal combustion engine configured to control an internal combustion engine , the engine includinga catalyst, which purifies exhaust gas discharged from a plurality of cylinders,fuel injection valves provided for the respective cylinders,a canister, which collects fuel vapor in a fuel tank, which stores fuel to be injected by the fuel injection valves, andan adjustment device, which adjusts a purge flow rate from the canister to an intake passage,the controller for an internal combustion engine being configured to executea dither control process of operating the fuel injection valves such that at least one of the cylinders is a lean combustion cylinder, in which an air-fuel ratio is leaner than a stoichiometric air-fuel ratio, and at least another one of the cylinders is a rich combustion cylinder, in which an air-fuel ratio is richer than the stoichiometric air-fuel ratio,a purge control process of controlling the purge flow rate by operating the adjustment device, anda limiting process of limiting the purge control process such that, when the dither control process is being executed, the purge flow rate is reduced as compared ...

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24-04-2014 дата публикации

Engine control system and method

Номер: US20140109870A1
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Methods and systems are provided for purging condensate from a charge air cooler to an engine intake while reducing misfire events related to the water ingestion. During the purging, a spark timing is adjusted based on the amount of condensate purged per cycle. The spark timing is adjusted differently when the condensate is purged during a tip-in versus a pro-active clean-out routine.

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24-01-2019 дата публикации

Multiple-keyed flywheel and engine crankshaft

Номер: US20190024619A1
Принадлежит: Kohler Co

A multiple-keyed crankshaft and flywheel provides for different ignition timing options for an internal combustion engine. The crankshaft of the engine includes multiple keyways set at designated angular displacements of the crankshaft that correspond with keyways on a flywheel for providing different timing options for the engine. The flywheel may be mounted to the crankshaft by aligning one of the keyways of the flywheel to one of the keyways of the crankshaft related to a particular ignition timing selection.

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24-01-2019 дата публикации

PORTABLE GASOLINE TOOL AND ELECTRONIC IGNITION SYSTEM THEREOF

Номер: US20190024620A1
Автор: Chen Fei, Kong Zhao
Принадлежит:

An electronic ignition system for a portable gasoline tool includes a voltage boosting device, a spark plug connected with an output of the voltage boosting device, a DC power source, and a controller electrically connected with the DC power source and connected with the voltage boosting device. The controller controls an ignition voltage and an ignition advance angle. A related portable gasoline tool includes a body, a cylinder located in the body, a piston movable to and fro within the cylinder, a crankshaft co-moved with the piston, and a flywheel located on the body and driven by the crankshaft to rotate. 1. A An electronic ignition system for a portable gasoline tool , comprising:a voltage boosting device;a spark plug connected with an output of the voltage boosting device;a DC power source; anda controller electrically connected with the DC power source and connected with the voltage boosting device, wherein the controller controls an ignition voltage and an ignition advance angle.2. The electronic ignition system according to claim 1 , wherein the voltage boosting device boosts an output voltage of the DC power source to the ignition voltage claim 1 , the output voltage of the DC power source is 6V˜12V claim 1 , and the ignition voltage is 10 kV˜30 kV.3. The electronic ignition system according to claim 2 , wherein the ignition voltage is 15 kV˜30 kV.4. The electronic ignition system according to claim 1 , wherein the DC power source includes a lithium battery claim 1 , the voltage boosting device includes a plurality of stages of voltage boosting units claim 1 , and an output voltage of the lithium battery is boosted to the ignition voltage through the plurality of stages of voltage boosting units.5. The electronic ignition system according to claim 4 , wherein the plurality of stages of voltages boosting units includes a first-stage voltage boosting unit and a second-stage voltage boosting unit claim 4 , the first-stage voltage boosting unit boosts a ...

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24-01-2019 дата публикации

Method for Safely Capturing High RPM Thresholds in Spark-Ignition Engines

Номер: US20190024621A1
Принадлежит:

A method for safely capturing an engine RPM threshold in a spark-ignition internal combustion engines which may exceed the maximum safe unloaded RPM for that engine. Typical engines having a safe RPM high speed redline when coupled to a load, and a reduced RPM redline when decoupled and unloaded, can be set to activate ancillary equipment at a high redline, engine loaded RPM by deriving and processing data from the engine at a low, unloaded reduced RPM speed. The method requires operator reference to an existing OEM or after-market tachometer which enables the user to set a low RPM reference point while the engine is unloaded and running at a slow RPM. Raw data from the latter variable RPM threshold selected by a user is safely captured while the engine is operating unloaded, and a higher RPM threshold is calculated and set from the raw data. The higher RPM threshold may exceed the maximum safe unloaded RPM for said engine. 1. A method for safely setting RPM thresholds for use by a spark-ignition internal combustion engine that is coupled or decoupled to a load , the engine characterized by a maximum safe RPM when loaded , and a reduced maximum safe RPM when unloaded , the method comprising the steps of:a. initiating engine operation;b. setting said engine at a pre-calculated RPM which is slower than said reduced maximum safe RPM;c. capturing RPM data from step “b”;d. converting captured RPM data from step “c” into an RPM threshold that is potentially higher than said maximum safe, loaded RPM threshold by applying a given fraction;e. recording said higher RPM threshold; and,f. when the loaded engine is thereafter run at high speed, triggering any connected external devices in response to occurrence of said high speed RPM threshold.2. The method as defined in wherein:step “1b” includes the step of referencing an engine tachometer to observe RPM;step “1c” includes the steps of initiating a capture mode for capture of RPM data and activating said capture mode to ...

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