СПОСОБ (ВАРИАНТЫ) И СИСТЕМА ДЛЯ УПРАВЛЕНИЯ ДВИГАТЕЛЕМ ТРАНСПОРТНОГО СРЕДСТВА В РЕЖИМЕ ОТСЕЧКИ ТОПЛИВА ПРИ ЗАМЕДЛЕНИИ

Изобретение может быть использовано в двигателях внутреннего сгорания транспортных средств. Способ управления двигателем транспортного средства в режиме отсечки топлива при замедлении (ОТЗ) заключается в том, что регулируют положение дросселя в воздухозаборнике двигателя, приводящего в движение транспортное средство, в соответствии с командами водителя транспортного средства. Во время режима (ОТЗ) увеличивают степень открытия дросселя независимо от указанных команд водителя транспортного средства в случае падения или ожидаемого падения скорости транспортного средства ниже необходимой скорости или траектории необходимой скорости. Раскрыты вариант способа управления двигателем транспортного средства в режиме отсечки топлива при замедлении и система для управления двигателем транспортного средства в режиме отсечки топлива при замедлении. Технический результат заключается в снижении потребления топлива и обеспечении торможения двигателем, являющегося результатом сопротивления трения и отрицательного ...

СИСТЕМА И СПОСОБ УПРАВЛЕНИЯ ТРАНСПОРТНЫМ СРЕДСТВОМ

Настоящее изобретение относится к системам и способам управления транспортным средством. Раскрыт способ управления транспортным средством, содержащим двигатель, блок управления двигателем (ECU), орган управления дроссельной заслонкой, корпус дроссельной заслонки, дроссельную заслонку, привод дроссельной заслонки, и ключеприемник, выполненный с возможностью связи с ключом, причем способ включает в себя: создание связи ключа с ключеприемником, запуск двигателя, в случае если ключ связан с ключеприемником и двигатель запущен: считывание идентификационного кода ключа и тем самым определение статуса авторизации ключа, и в случае если определено, что ключ представляет собой авторизованный ключ, управление положением дроссельной заслонки исходя частично из положения органа управления дроссельной заслонкой, в случае если определено, что ключ представляет собой неавторизованный ключ, ограничение положения дроссельной заслонки таким образом, чтобы оно было меньше безопасного ограниченного положения ...

УСТРОЙСТВО ДЛЯ ОБЕСПЕЧЕНИЯ ПРИТОЧНЫМ ГАЗОМ ПОРШНЕВОГО ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ С ТУРБОНАДДУВОМ

Изобретение относится к двигателестроению, в частности к устройствам для обеспечения приточным газом для поршневого двигателя. Изобретение позволяет создать устройство для обеспечения приточным газом двигателей внутреннего сгорания с турбонаддувом, которое выполнено в виде отдельного модуля с соответствующими присоединениями, и может быть оптимально оборудовано трубопроводными средствами для приточного газа. Устройство для обеспечения приточным газом для поршневого двигателя внутреннего сгорания с турбонаддувом включает присоединение для сжатого воздуха с устройством для регулирования количества, выходящее сбоку в имеющую форму трубы внутреннюю полость, а также расположенную во внутренней полости с возможностью регулирования заслонку для регулирования потока, причем внутренняя полость ограничена от наддувочного воздуха турбокомпрессора, работающего на отработавших газах первым концевым присоединением для впуска и торцевым концевым присоединением для выпуска. Трубопроводные средства для ...

ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ, АВТОМАТИЧЕСКОЕ УСТРОЙСТВО ДРОССЕЛЬНОЙ ЗАСЛОНКИ, СПОСОБ УПРАВЛЕНИЯ ДРОССЕЛЬНОЙ ЗАСЛОНКОЙ В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ, А ТАКЖЕ УЗЕЛ УПРАВЛЕНИЯ ДРОССЕЛЬНОЙ ЗАСЛОНКОЙ

Изобретение относится к двигателестроению, в частности к двигателям внутреннего сгорания и способам управления дроссельной заслонкой. Изобретение позволяет обеспечить автоматическое управление дроссельной заслонкой, упростить способ управления, устройство и узел управления дроссельной заслонкой. Двигатель внутреннего сгорания содержит дроссельную заслонку, устройство управления дроссельной заслонкой, теплопроводящий узел в непосредственном контакте с выхлопными газами, производимыми двигателем. Двигатель содержит теплочувствительный элемент, находящийся в таком тепловом сообщении с теплопроводящим узлом, при котором теплопроводящий узел передает тепло от выхлопных газов к теплочувствительному элементу. Двигатель содержит механизм, который перемещается в соответствии с теплочувствительным элементом и заставляет дроссельную заслонку оставаться, по меньшей мере, в частично открытом положении при запуске двигателя, когда теплочувствительный элемент определяет температуру выше заданного значения ...

ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателю внутреннего сгорания. Двигатель внутреннего сгорания содержит нагнетатель, который размещен во впускном канале; промежуточный охладитель, который размещен ниже по потоку от нагнетателя в направлении потока всасываемого воздуха, во впускном канале; и устройство возврата прорвавшихся газов. Устройство возврата прорвавшихся газов содержит перепускной канал, эжектор, а также канал для прорвавшихся газов. Перепускной канал соединяет друг с другом первую точку, которая находится между нагнетателем и промежуточным охладителем, и вторую точку, которая находится ниже по потоку от промежуточного охладителя впускного канала. Эжектор размещен в перепускном канале и выполнен с возможностью всасывания прорвавшихся газов из картера через канал для прорвавшихся газов, когда воздух течет через перепускной канал из первой точки во вторую точку. Изобретение обеспечивает вентилирование картера. 2 н. и 5 з.п. ф-лы, 16 ил.

УСТРОЙСТВО УПРАВЛЕНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ И СПОСОБ УПРАВЛЕНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к машиностроению. Устройство управления для двигателя (100) внутреннего сгорания содержит впускной канал (51) двигателя (100) внутреннего сгорания, выпускной канал (52) двигателя (100) внутреннего сгорания. EGR-канал (53) соединяет впускной канал (51) и выпускной канал (52). Дроссельный клапан (41) расположен ниже по потоку от соединенной части с EGR-каналом (53) во впускном канале (51) и выполнен с возможностью управления объемом всасываемого воздуха, протекающего в двигатель (100) внутреннего сгорания. Впускной дроссельный клапан (39) расположен выше по потоку от соединенной части с EGR-каналом (53) во впускном канале (51). Степень открытия впускного дроссельного клапана (39) определяется на основе объема всасываемого воздуха, когда объем всасываемого воздуха находится в пределах диапазона в EGR-области, причем в этом диапазоне вводимый объем свежего воздуха не затрагивается посредством дросселирования воздуха впускного дроссельного клапана (39). Также раскрыт способ ...

УСТРОЙСТВО УПРАВЛЕНИЯ КЛАПАНОМ

Изобретение относится к устройству управления клапаном. Устройство управления содержит клапан, предоставленный в канале, через который протекает жидкость, который открывает и закрывает канал. Устройство управления содержит актуатор, который приводит в действие клапан, а также датчик, который выявляет величину открытия клапана, содержит первый стопор, который регулирует перемещение клапана дальше в направлении открытия, чем полностью открытая позиция клапана, содержит второй стопор, который регулирует перемещение клапана дальше в направлении закрытия, чем полностью закрытая позиция клапана. Устройство содержит первый диагностический модуль, который определяет то, находится или нет выявленная величина открытия за пределами первого предварительно определенного диапазона относительно целевой величины открытия клапана. Устройство содержит второй диагностический модуль, который определяет то, находится или нет выявленная величина открытия за пределами второго предварительно определенного диапазона ...

СПОСОБ ОСТАНОВА ВРАЩЕНИЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) И СИСТЕМА ТРАНСПОРТНОГО СРЕДСТВА

... 1. Способ останова вращения двигателя, включающий в себя этапы, на которых:прекращают подачу топлива в цилиндры двигателя, сжигающие воздух и топливо;подают команду на зацепление стартера из состояния не в зацеплении с двигателем в зацепление с двигателем; ирегулируют положение дросселя на основании того, находится ли стартер в зацеплении с двигателем или нет.2. Способ по п.1, в котором стартер зацепляется с двигателем посредством ведущей шестерни.3. Способ по п.1, в котором дроссель регулируют в первое положение, когда стартер не зацепляется с двигателем, в пределах первого диапазона скоростей вращения двигателя.4. Способ по п.3, в котором дроссель регулируют во второе положение, когда стартер зацепляется с двигателем, в пределах первого диапазона скоростей вращения двигателя, при этом второе положение является более открытым, чем первое положение.5. Способ по п.1, дополнительно включающий в себя этап, на котором стартеру подают команду на зацепление с двигателем в пределах заданного углового ...

СПОСОБ ЗАПУСКА ДВИГАТЕЛЯ, СПОСОБ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) И СИСТЕМА

... 1. Способ запуска двигателя, включающий:установку положения дросселя на основании давления в вакуумном резервуаре во время запуска.2. Способ по п.1, в котором давление в вакуумном резервуаре включает давление в усилителе тормозов.3. Способ по п.2, в котором давление в усилителе тормозов включает уровень давления в усилителе тормозов, в то время как двигатель находится в состоянии покоя, при этом дроссель дополнительно устанавливается на основании барометрического давления.4. Способ по п.2, в котором давление в усилителе тормозов включает уровень давления в усилителе тормозов до того, как начинается впрыск топлива для запуска.5. Способ по п.4, в котором дроссель устанавливается в большей степени закрытым для более высоких уровней абсолютного давления в усилителе тормозов.6. Способ по п.5, в котором усилитель тормозов находится в пневматическом сообщении с впускным коллектором исключительно через единственный запорный клапан.7. Способ по п.1, в котором дроссель устанавливается в большей степени ...

УСТРОЙСТВО УПРАВЛЕНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ, ПОДАВЛЯЮЩЕЕ ВЫБРОСЫ БЕЛОГО ДЫМА

Изобретение может быть использовано в устройствах управления двигателей внутреннего сгорания. Устройство управления для двигателя внутреннего сгорания включает в себя устройство управления выхлопными газами в выпускной системе двигателя внутреннего сгорания. Устройство управления выхлопными газами содержит регулятор объема всасываемого воздуха, температурный датчик и электронный блок управления. Температурный датчик имеет возможность измерять температуру устройства управления выхлопными газами. Электронный блок управления имеет возможность оценивать величину накопления серного соединения. Величина накопления серного соединения является количеством серного соединения, накопленного на устройстве управления выхлопными газами. Когда конкретное условие, при котором величина накопления серного соединения равна или больше предварительно определенной величины накопления (S1) и температура устройства управления выхлопными газами равна или больше предварительно определенной температуры (S2), удовлетворяется ...

УСТРОЙСТВО УПРАВЛЕНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение может быть использовано в системах управления двигателей внутреннего сгорания. Система управления для двигателя внутреннего сгорания ограничивает выходную мощность двигателя (1) внутреннего сгорания и содержит средство определения степени задействования акселератора для определения величины задействования педали (23) акселератора, средство определения задействования тормоза для определения задействования тормоза вследствие нажатия педали (25) тормоза и дроссельный клапан, расположенный в канале для всасываемого воздуха (11). Выходная мощность из двигателя (1) внутреннего сгорания ограничивается, когда обнаруживается задействование тормоза посредством педали (25) тормоза в дополнение к задействованию педали (23) акселератора. Выходная мощность двигателя (1) внутреннего сгорания ограничивается таким образом, что она не превышает выходную мощность, которая вычисляется посредством использования первой ограничительной степени задействования акселератора, когда обнаруживается задействование ...

СИСТЕМА РЕЦИРКУЛЯЦИИ ВЫХЛОПНЫХ ГАЗОВ С ФИКСИРОВАННЫМ СОДЕРЖАНИЕМ

... 1. Способ управления потоком рециркуляции выхлопных газов (EGR) в двигателе с турбонаддувом, в котором эксплуатируют систему рециркуляции выхлопных газов низкого давления (LP-EGR) с фиксированным процентным содержанием свежего воздуха в EGR при нагрузке двигателя от средней до минимальной, независимо от изменения нагрузки.2. Способ по п. 1, в котором минимальная нагрузка двигателя соответствует практически полностью закрытому положению дросселя.3. Способ по п. 1, в котором при нагрузке двигателя от средней до высокой систему LP-EGR эксплуатируют с регулируемым процентным содержанием свежего воздуха в EGR.4. Способ по п. 3, в котором дополнительно регулируют скорость рециркуляции выхлопных газов высокого давления (HP-EGR) на основании перехода между режимом с фиксированным содержанием и режимом с регулируемым содержанием.5. Способ по п. 1, в котором дополнительно регулируют скорость HP-EGR на основании скорости и нагрузки двигателя при поддержании фиксированного процентного содержания EGR ...

УСТРОЙСТВО И СПОСОБ ДЛЯ ПРИВЕДЕНИЯ В ДВИЖЕНИЕ ТРАНСПОРТНОГО СРЕДСТВА

... 1. Устройство приведения в движение транспортного средства, содержащее:двигатель (1) внутреннего сгорания, вырабатывающий выходную мощность посредством сгорания топлива, поданного в ответ на нажатие педали акселератора транспортного средства, при выполнении отсечки топлива в ходе движения накатом транспортного средства, при котором не нажимается педаль акселератора;преобразователь (2B) крутящего момента, который передает выходную мощность двигателя (1) внутреннего сгорания на ведущее колесо транспортного средства через рабочее колесо насоса и рабочее колесо турбины;муфту (2C) блокировки, которая зацепляется, когда транспортное средство движется накатом, для непосредственного соединения рабочего колеса насоса с рабочим колесом турбины;датчик (6) нажатия педали акселератора, который определяет нажатие педали акселератора в ходе движения накатом; ипрограммируемый контроллер (4), запрограммированный с возможностью:управления муфтой (2C) блокировки таким образом, что она расцепляется в ответ ...

СПОСОБ УПРАВЛЕНИЯ ОХЛАЖДЕНИЕМ НАДДУВОЧНОГО ВОЗДУХА

... 1. Способ эксплуатации двигателя, в котором увеличивают скорость потока впускного воздуха, проходящего через охладитель наддувочного воздуха, и при этом для поддержания крутящего момента согласованно регулируют положение дросселя впускного коллектора и/или перепускной заслонки турбонагнетателя.2. Способ по п.1, в котором для увеличения скорости потока впускного воздуха закрывают клапан на впуске охладителя наддувочного воздуха, чтобы направить поток воздуха через часть охладителя наддувочного воздуха.3. Способ по п.2, в котором для согласованного регулирования положения дросселя впускного коллектора и/или перепускной заслонки турбонагнетателя, после закрывания клапана открывают дроссель впускного коллектора и/или закрывают перепускную заслонку турбонагнетателя.4. Способ по п.3, в котором скорость потока впускного воздуха увеличивают в зависимости от значения образования конденсата, которое рассчитывают на основании массового расхода воздуха, температуры окружающей среды, температуры на ...

УСТРОЙСТВО СНИЖЕНИЯ ШУМА ДЛЯ ВПУСКНОЙ СИСТЕМЫ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Способ для контроля ресурса компонентов

СПОСОБ И СИСТЕМА ДЛЯ СМЯГЧЕНИЯ ПОСЛЕДСТВИЙ НЕИСПРАВНОСТИ ДРОССЕЛЯ

СПОСОБ ИЗМЕНЕНИЯ СТЕПЕНИ СЖАТИЯ И ИЗМЕНЕНИЯ ОТНОШЕНИЯ ВОЗДУХА К ТОПЛИВУ В ДВИГАТЕЛЕ ВНУТРЕННЕГО СГОРАНИЯ

УСТРОЙСТВО ДЛЯ УПРАВЛЕНИЯ ДРОССЕЛЬНОЙ ЗАСЛОНКОЙ, В ЧАСТНОСТИ ДРОССЕЛЬНОЙ ЗАСЛОНКОЙ ВПУСКНОЙ УСТАНОВКИ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Устройство для управления дроссельной заслонкой (1) с помощью серводвигателя (2), в котором между дроссельной заслонкой (1) и серводвигателем (2) расположено по меньшей мере одно приспособление для термической развязки, отличающееся тем, что вал (6) серводвигателя (2) через передающий крутящий момент соединительный элемент (4) соединен с валом (5) дроссельной заслонки (1), при этом соединительный элемент (4) имеет заданно небольшую теплопроводность.2. Устройство по п. 1, отличающееся тем, что соединительный элемент (4) имеет меньшую теплопроводность, чем вал (6) серводвигателя и/или чем вал (5) дроссельной заслонки (1).3. Устройство по п. 1 или 2, отличающееся тем, что серводвигатель (2) закреплен на держателе (3; 33), в частности, на открытом по меньшей мере на одной стороне держателе (3; 33), на расстоянии от дроссельной заслонки (1), в частности, вложен в открытый держатель (3).4. Устройство по п. 3, отличающееся тем, что держатель (3) из двух свинченных друг с другом удерживающих ...

СИСТЕМА И СПОСОБ УПРАВЛЕНИЯ ТРАНСПОРТНЫМ СРЕДСТВОМ

... 1. Способ управления транспортным средством, содержащим:двигатель;блок управления двигателем (ECU), выполненный с возможностью управления работой двигателя;орган управления дроссельной заслонкой, функционально соединенный с ECU;корпус дроссельной заслонки, выполненный с возможностью сообщения с двигателем по текучей среде;дроссельную заслонку, расположенную в корпусе дроссельной заслонки и выполненную с возможностью регулирования потока текучей среды в двигатель;привод дроссельной заслонки, соединенный с дроссельной заслонкой для управления положением дроссельной заслонки, причем привод дроссельной заслонки выполнен с возможностью электронной связи с ECU; иключеприемник, выполненный с возможностью связи с ключом,причем способ включает в себя:создание связи ключа с ключеприемником;запуск двигателя;в случае если ключ связан с ключеприемником и двигатель запущен:считывание идентификационного кода ключа и тем самым определение статуса авторизации ключа; ив случае если определено, что ключ представляет ...

Fahrhilfevorrichtung eines Kraftfahrzeuges

Method for controlling regeneration of diesel particulate filter in exhaust gas passage of diesel engine, involves supplying residual exhaust gas mass flow over butterfly valve to particulate filter due to leakage of supply air

The method involves controlling combustion of particles in a particulate filter (42) i.e. diesel particulate filter (DPF), during regeneration process by controlling oxygen contents of exhaust gas. The oxygen contents of the exhaust gas are oxidized by hydrocarbons of catalytic working components at the beginning of thrust phase of a closed butterfly valve (24) and an opened exhaust gas reconducting valve (26). A residual exhaust gas mass flow (46) is supplied over the butterfly valve to the particulate filter due to leakage of supply air. An independent claim is also included for a device for controlling regeneration of a particulate filter in an exhaust gas system of a combustion engine.

Quantitätsgesteuerte Brennkraftmaschine mit einem System zur Einleitung von Zusatzluft

Secondary air system for internal combustion engine

The system has at least one line for blowing secondary air into the engine's exhaust pipe, a delivery pump with a drive and a feed line for the secondary air to the feed pump. The drive is provided by energy available from the engine. The drive can be a turbine (35) exposed to the induction air, or to oil or water circulating in the engine, or an electric motor. The turbine can use the pressure drop between the pressure of the engine's (32) induction air and the pressure of the induction air after the choke flap (33).

EINLASS- ODER AUSPUFFLEITUNG FÜR HUBKOLBENMASCHINEN

Rückholfederanordnung zur Verwendung in einer Vorrichtung zum Rückholen der Drosselklappe an der Einlaßseite eines Verbrennungsmotors

Electronic control device for controlling electronically controlled throttle flap for internal combustion engine of e.g. motorcycle, has controller unit determining gain characteristic value as gain characteristic value of input amount

The device (1) has a sliding mode controller unit (10) for calculating a damping input amount based on an amount of change of a standard amount. The controller unit calculates a control input amount, which contains the damping input amount. The controller unit determines a gain characteristic value as a gain characteristic value of the damping input amount when a control deviation amount, which is a difference between a target amount and the standard amount, lies close to zero and larger than the damping input amount.

VERFAHREN UND SYSTEM ZUR EINSTELLUNG VON MOTORDROSSELKLAPPEN

Es wird ein Motorsystem und -verfahren zum Betrieb eines Motors mit einer zentralen Drosselklappe und einer Einzeldrosselklappe offenbart. In einem Beispiel werden die zentrale Drosselklappe und die Einzeldrosselklappe zur Verbesserung von Übergängen zwischen Drosselklappensteuermodi eingestellt. Der Lösungsansatz kann für turboaufgeladene Motoren besonders vorteilhaft sein.

Drosselklappensensor mit Gültigkeitssignal

Verfahren und System zur Vakuumerzeugung unter Verwendung eines Drosselkörpers mit einem gleitbaren Drosselventil

Verschiedene Systeme und Verfahren zur Vakuumerzeugung innerhalb eines Motoreinlasses werden beschrieben. Ein System kann eine Einlassdrossel umfassen, die ein gleitbares Drosselventil aufweist, wobei das Drosselventil einen hohlen inneren Durchgang umfassen kann, der seinerseits mit einer Vakuumverbrauchsvorrichtung gekoppelt sein kann. Wenn ein Vakuum von der Vakuumverbrauchsvorrichtung angefordert wird, kann das Drosselventil stromabwärts innerhalb der Drossel verschoben werden, um den Luftstrom durch die Drossel zu verringern, und ein Vakuum kann an der Spitze des Drosselventils durch das Strömen von Einlassluft zwischen dem Drosselventil und einer Drosselbefestigung erzeugt werden.

Spark ignition internal combustion engine, especially for a motor vehicle, with a load adjustment device

In order to avoid the usual throttle losses in the load control of the internal combustion engine (2), in place of the usual throttle valve a machine (3) is arranged in the intake pipe (1) of the internal combustion engine (2), which in the partial load range of the internal combustion engine (2) is driven by the intake pipe flow and supplies energy, for example to a vehicle battery (8), but at higher loads of the internal combustion engine (2) is driven, for example by the vehicle battery (8) and then acts as charger. This achieves the object of avoiding the losses of kinetic energy occuring in conventional throttle valve control with a low constructional outlay. ...

Verfahren zur Steuerung transienter Lasten zwischen mageren und stöchiometrischen Verbrennungsbetriebsarten von Direkteinspritzmaschinen mit gesteuerter Selbstzündungsverbrennung

Verfahren zur Steuerung einer Direkteinspritzmaschine, die mit einer gesteuerten Selbstzündung bei Lastübergangsoperationen zwischen Betriebsarten mit einer mageren Verbrennung bei einer niedrigen Last (HCCI/Lean) und einer stöchiometrischen Verbrennung bei einer mittleren Last (HCCI/Stöch.) betrieben wird, wobei das Verfahren umfasst: ein stationäres Betreiben der Maschine in einem Lastbereich mit einer homogenen Kompressionszündung (HCCI) mit Kraftstoff-Luft-Abgas-Mischungen für jede Drehzahl und Last bei vorbestimmten Zuständen einer Kraftstoffzufuhrmassenströmungsrate (Kraftstoffzufuhrrate), eines Injektionszeitpunkts (FI), eines Zündfunkenzeitpunkts (SI), einer Drosselstellung, einer Einstellung des Abgasrückführungsventils (AGR-Ventils) und einer Abgasrekompression, die durch eine negative Ventilüberlappung (NVO) zwischen einem Schließen der Auslassventile und einem Öffnen der Einlassventile in jedem Zylinder erhalten wird; und ein Steuern der Maschine bei Änderungen einer Betriebsart ...

Motorsteuerung beim Rollen im Leerlauf

Ein Motorsteuersystem umfasst ein Roll-Identifizierungsmodul, ein Drosseleinstellmodul und ein Kraftstoffeinstellmodul. Das Roll-Identifizierungsmodul identifiziert selektiv ein Rollereignis. Das Drosseleinstellmodul vergrößert eine Öffnung einer Drosselklappe während des Rollereignisses. Das Kraftstoffeinstellmodul verringert den Kraftstoff, der an einen Motor während des Rollereignisses geliefert wird.

Operating device for a throttle member

Known operating devices for controlling a throttle member, for example a throttle valve of an internal combustion engine, have an operating element which is connected to a control shaft of the throttle valve by means of a screw connection. In mass production a rapid model change of the operating element is desirable, which is scarcely possible with a screw connection. The operating device (1) according to the invention has a fixing element (25), which has a fixing inner sleeve (30) in order to receive an operating outer sleeve (55) of the operating element (26) which slips over. For axial mounting of the operating element (26) a fixing plate (27) is provided, which is easily connected to the fixing inner sleeve (30) by engaging in fixing pins (68) provided. The operating device is especially suitable for throttle devices of mixture-compressing internal combustion engines with applied ignition or air-compressing internal combustion engines with self-ignition. ...

Verfahren zum Betrieb einer Viertaktbrennkraftmaschine mit Fremdzündung und Direkteinspritzung und Vorrichtung zur Durchführung des Verfahrens

Drosselklappenstutzen

DROSSELKLAPPENVORRICHTUNG

Drosselklappeneinrichtung für eine Brennkraftmaschine und damit versehenes Motorrad

Es wird eine Drosselklappeneinrichtung (1) für eine Brennkraftmaschine (8) vorgeschlagen, mit einem Gehäuse (3) und einem einen Durchströmungsquerschnitt aufweisenden Saugrohr (7) und einer relativ zum Durchströmungsquerschnitt verschwenkbaren Drosselklappe (6), die mittels einer Drosselklappenwelle (5) betätigbar ist und mit einer am Gehäuse (3) angeordneten Stelleinrichtung (2), mittels der die Drosselklappe (6) in einer den Durchströmungsquerschnitt zumindest teilweise frei gebenden Kaltstartstellung lösbar festlegbar ist.

DRUCKBEAUFSCHLAGTES LUFTANSAUGSYSTEM

Es werden Verfahren und Systeme für aufgeladene Motorsysteme bereitgestellt. In einem Beispiel kann ein System ein druckbeaufschlagtes Luftansaugsystem mit zwei Wegen beinhalten, wobei der erste zum Zuführen von Umgebungsluft und der zweite zum Zuführen von aufgeladener Luft zum Motor dient. Das druckbeaufschlagte Luftansaugsystem ist außerdem dazu ausgelegt, aufgeladene Luft für eine schnellere Zufuhr von Ladedruck im Falle eines Bedarfs nach mehr Motordrehmoment zu speichern.

EINRICHTUNG ZUM REGELN DER LUFTZUFUHR EINER VERBRENNUNGSKRAFTMASCHINE

Steuereinheit, Zuluftstrang und Verfahren zum Steuern einer Drosselklappe

Es wird eine Steuereinheit 1 angegeben, die dazu ausgebildet und eingerichtet ist, ein Steuersignal 2 an eine in einem Zuluftstrang 3 eines Verbrennungsmotors 4 angeordnete Drosselklappe 5 auszugeben, wobei das Steuersignal 2 eine Variation einer Stellung der Drosselklappe 5 in Abhängigkeit eines Einleitens eines Abgases 6 in den Zuluftstrang 3 bewirkt.Außerdem werden ein Zuluftstrang 3 zum Zuführen von Zuluft 8 zu einem Verbrennungsmotor 4, ein Kraftfahrzeug, ein erfahren zum Steuern einer Drosselklappe 5 eines Zuluftstrangs 3, ein Computerprogrammprodukt sowie ein computerlesbarer Datenträger angegeben.

Recheneinheit für Fahrzeuge und ihr Arbeitsverfahren

Momentenneutrale Zylinderabschaltung durch Deaktivierung von Gaswechselventilen

Vorgestellt wird ein Verfahren zum Wechsel zwischen Vollmotorbetrieb und Teilmotorbetrieb eines mehrzylindrigen Verbrennungsmotors, bei dem wenigstens die Einlassventile oder die Auslassventile eines Zylinders oder einer Gruppe von Zylindern im Vollmotorbetrieb aktiviert und im Teilmotorbetrieb deaktiviert sind, wobei in einem ersten Schritt eine Drosselung der Leistung der zu deaktivierenden Zylinder und gleichzeitig eine Erhöhung der Leistung der anderen Zylinder so erfolgt, das das vom Motor abgegebene Gesamtmoment einem vorgegebenen Motorsollmoment folgt und wobei in einem zweiten Schritt eine Abschaltung der gedrosselten Zylinder über die schaltbaren Ein- oder Auslassventile erfolgt. Dieses Verfahren vermeidet unerwünschte Änderungen des vom Motor abgegebenen Gesamtdrehmomentes. Die Erfindung richtet sich auch auf eine Vorrichtung zur Durchführung der Verfahren.

Drosselklappeneinheit einer Brennkraftmaschine

Ein Bypasskanal (30) umfasst einen Einlass (31) des Bypasskanals, welcher mit den Stromaufwärtsseiten der ersten und zweiten Drosselventile der ersten und zweiten Saugdurchgänge in Verbindung steht, eine Ventilkörper-Aufnahmekammer (32), die zu dem Einlass (31) koaxial angeordnet ist, erste und zweite stromaufwärtsseitige Nebendurchgänge (36, 37), die von der Ventilkörper-Aufnahmekammer (32) herausragen, stromabwärtsseitige Nebendurchgänge (63, 65), die von den Endabschnitten der stromaufwärtsseitigen Nebendurchgänge (36, 37) herausragen und mit den Stromabwärtsseiten der ersten und zweiten Drosselventile der ersten und zweiten Saugdurchgänge in Verbindung stehen, ein Bypassventil (33), welches in der Ventilkörper-Aufnahmekammer (32) beweglich aufgenommen ist und die ersten und zweiten stromaufwärtsseitigen Nebendurchgänge (36, 37) bei derselben Öffnung öffnen kann. DOLLAR A Ein Reduzieren der Anzahl an Bypassventilen auf eines kann die Herstellungskosten und die Montagearbeitsstunden der ...

An improved high altitude internal combustion engine

... 137,832. Bergmann, G. June 7, 1917, [Convention date,]. Regulating.-An aircraft engine is designed to develop a predetermined horse-power at a given altitude, suitable regulating-means being provided to prevent the engine from exceeding the predetermined horse-power at lower levels. The engine has a high compression-ratio; the substructure and driving-mechanism are designed for the predetermined horse-power only. Reference has been directed by the Comptroller to Specification 152,039.

Method for operating an internal combustion engine of a vehicle

Engine management system

SPEED CONTROL APPARATUS FOR ENGINES

... 1378008 Regulating I C engines J R HOLLINS 6 Jan 1972 [8 Jan 1971] 648/72 Heading F1B [Also in Division F2] In speed control apparatus having an element 20 for controlling rotational speed the element is biased to an idling position by a spring 28 and selectively movable against the spring by an operator control member 30 and a linkage 32, 38, 40 including a spring 42. The element 20 is independently movable by an arrangement 44, 48, 56 should the operator controlled linkage become stuck, the stop 56 on the cable 48 engaging the element and moving it towards the idling position against the force of the spring 42 when the knob 44 is moved sufficiently from the dashboard 46. The operator controlled linkage may include a cable (64), Fig. 2 (not shown). The element 20 may be moved to the idling position when the brake pedal (100), Figs. 3 and 4 (not shown), is depressed. The pedal (100) may operate a spool valve (118), Fig. 3, which connects a cylinder (128) containing a piston (130) to the ...

Engine throttle valve linkage with intake vacuum indicator

An arrangement in a motor vehicle informing the driver of fuel-economy conditions while driving the vehicle, by creating at the limit at which uneconomic driving commences a pressure point at which further depression of the pedal is resisted. The accelerator pedal is acted upon by a vacuum assembly controlled by a control valve having an auxiliary unit which compares the engine intake pressure with a limit pressure for uneconomic driving and which, when the intake pressure exceeds the limit pressure, switches the control valve to a position in which the vacuum assembly is ventilated to atmosphere, whereupon the assembly is set to an inactive state, and automatically resets the control valve to a normal working position, when the intake pressure lies beneath the limit pressure.

A governor device for an engine

A governor device for an engine which is simple in construction and easy to adjust, and achieves precise and reliable control of engine speed without contacting the rotating portion of the engine. The governor device consists of a non-magnetic and electrically conductive disk which is rotated in synchronism with the engine; a swing member pivotally mounted for effecting a free-swing action thereof; a magnet mounted on said swing member and providing a magnetic field onto said disk for inducing an electromagnetic force to effect said swing action of the swing member in responsive to the rotation of said disk; a spring member for suppressing said swing action of said swing member in one direction; and a drive mechanism for operating a throttle valve of the engine in opening or closing direction in responsive to the swing action of said swing member.

A method of operating a four-stroke internal combustion engine having external ignition and direct injection,and a device for performing the method

Method for operating an internal combustion engineof a vehicle

Exhaust gas control apparatus for internal combustion engine

An exhaust gas control apparatus for an internal combustion engine includes a NOx occlusion reduction catalyst 6 and an electronic control unit 20, which carries out a low flow rate reduction treatment when a fuel supply from a fuel injection device 4 into the engine is stopped and a flow rate of exhaust gas supplied to the catalyst is smaller than during operation of the engine. The electronic control unit controls a fuel addition valve 7, located on an exhaust passage 5 upstream the catalyst, and an inflow gas adjustment device 2 to control the ratio of oxygen to fuel added to the catalyst. When the catalyst temperature is below a predetermined temperature (such as a catalyst activation temperature), the ratio of oxygen to fuel (air/fuel ratio) is higher than when the catalyst temperature is equal to or higher than the predetermined temperature. The inflow gas adjustment device may be an intake air throttle valve.

System and method for detecting intake manifold combustion

A method comprising monitoring, with at least one sensor 342, 344, 346, 348 in communication with a controller (2, Fig. 2), at least one parameter in an intake manifold 320 of an engine; detecting by the controller (2, Fig. 2), a combustion event in the intake manifold 320 based on output from the at least one sensor 342, 344, 346, 348 and limiting a peak pressure in the intake manifold 320 in response to detecting the combustion event; Systems including a plurality of sensors 342, 344 coupled to the intake manifold 320 and operative to detect at least one parameter in the intake manifold 320, and an engine control module or controller (2, Fig. 2) in communication with the plurality of sensors 342, 344, 346, 348, the controller (2, Fig. 2) being operative to detect a combustion event in the intake manifold 320 based on output from at least one sensor of the plurality of sensors 342, 344, 346, 348, and initiate a control event to limit a peak pressure in the intake manifold 320 in response ...

AIR-AIR/FUEL CONTROL DEVICE

THROTTLE ACTUATOR AND CONTROL SYSTEM

A ROTARY VALVE ACTUATOR MECHANISM

Vehicle Control Unit

Throttle control method and device for operating internal combustion engines.

A control assembly and method for operating the throttle of an internal combustion engine, in particular but not exclusively, a diesel engine of a heavy duty vehicle, is provided whereby fuel can be saved by controlling the throttle operation. Sensing means detect certain undesirable throttle conditions or movements such as full throttle for an excessive period of time; the number of times a throttle is pumped; and the speed with which the throttle mechanism is moved, and the assembly acts to reduce the fuel supply to the engine to an extent whereat the engine does not lose engine speed to any appreciable extent at constant load.

Throttle control method and device for operating internal combustion engines

Throttle control method and device for operating internal combustion engines

PROCEDURE AND DEVICE FOR THE VARIABLE FLOW CONTROL BETWEEN AIR INTAKE AND THROTTLE

COMBUSTION CHAMBER DEACTIVATION SYSTEM

BRENNKRAFTMASCHINE UND VERFAHREN ZUM BETRIEB EINER BRENNKRAFTMASCHINE

Die Erfindung betrifft eine Brennkraftmaschine mit zumindest einem in einem Zylinder (Z) entlang einer Zylinderachse (A) hin- und hergehenden Kolben(K), wobei durch Kolben (K), Zylinderkopf (33), zumindest einer Einlassöffnung (29a) und zumindest einer Auslassöffnung (30a) ein Brennraum (B) gebildet ist, wobei die zumindest eine Einlassöffnung (29a) durch ein Einlassventil (9, 10) öffenbar und verschließbar ist und die zumindest eine Auslassöffnung (30a) durch ein Auslassventil (11, 12) öffenbar und verschließbar ist und zumindest zwei Einlasskanäle (1, 2, 3 und 4) als eine gemeinsame Einlasskanalanordnung in die Einlassöffnung (29a) münden. Aufgabe ist es, eine Brennkraftmaschine und ein dazugehöriges Verfahren anzugeben, bei dem die Drehmoment und Abgaswerte verbessert sind. Dies wird dadurch erreicht, dass in jedem Einlasskanal (1, 2, 3, 4) eine Drosselklappe (5, 6, 7, 8) vorgesehen ist, die zwischen einer geöffneten und einer geschlossenen Stellung bewegbar ist.

INTERNAL-COMBUSTION ENGINE

SCHALTEINHEIT IN THE INLET SYSTEM OF A LIFTING CYLINDER INTERNAL-COMBUSTION ENGINE

PROCEDURE AND SYSTEM FOR THE ENGINE BRAKING IN A COMBUSTION ENGINE

VERFAHREN ZUM BETREIBEN EINER BRENNKRAFTMASCHINE

COOPERATIVE NOTIFICATION AND AIR CONTROL

Verfahren und Vorrichtungen betreffen die Lufthandhabung für ein Verbrennungsmotorsystem und insbesondere die Nutzung einer Vormischung von Luft und Kraftstoff. Das Motorsystem umfasst eine Ansaugluftdrossel (IAT), die eine Position aufweist, die in Reaktion auf die Motordrehzahl eingestellt wird, und ein variables Ventilzeitsteuermodul, das eine Einlassventilzeitsteuerung aufweist, die in Reaktion auf die Motorlast eingestellt wird. Das variable Ventilzeitsteuermodul kann ein Nockenphasensteller sein, der eine Position bei oder zwischen vollen Verzögerungs- und vollen Vorverlegungspositionen aufweist. Das Motorsystem kann in einem transienten Modus oder einem Kraftstoffeffizienzmodus arbeiten. Die IAT-Position wird in Reaktion auf einen Motordrehzahlfehlerwert angepasst oder auf vollständig geöffnete Drossel (Vollgas) eingestellt. Die Nockenphasenstellerposition wird in Reaktion auf einen Druckunterschied über die IAT, die Motordrehzahl angepasst oder auf eine Grenzposition eingestellt ...

THROTTLE VALVE AND VEHICLE

MOMENT-NEUTRAL CYLINDER DISCONNECTION BY DEACTIVATION OF GAS SHUTTLE VALVES

Electronic fuel injection throttle body assembly

Present embodiments provide an electronic fuel injection throttle body (110) which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The bores or barrels (140, 142) of the throttle body may comprise one or more stackable fuel injectors (1170-1173). The fuel component cover (132) may include a regulator (134) with a housing (131) formed integrally with the fuel component cover or alternatively, a regulator may be located remotely.

Carburetor electronic control system

Improvements relating to scavenged internal combustion engines

Mass flow determination

SYSTEM AND METHOD FOR LOCATING AN ENGINE EVENT

Systems and methods for estimating an engine event location are disclosed herein. In one embodiment, a controller is configured to receive a signal from at least one knock sensor coupled to a reciprocating engine, transform the signal, using a multivariate transformation algorithm, into a power spectral density, transform the power spectral density into a plurality of feature vectors using predictive frequency bands, predict the engine event location using at least the plurality of feature vectors and a predictive model, and adjust operation of the reciprocating engine based on the engine event location. A" 102- ~True PFP Knock locations signal >104 STFT >106 PSD over 10 time 1 PF~, PFBs 112 114-- Features lang //Predictive/ -------- ar-------- L o e - 118 Knock signal - 104 / PSD over time 108 112 PFBs Features 132 model /Predicted PFP locations 34 ...

Throttle device

Device for resetting a throttle valve

DEVICE FOR SUPPLYING FRESH AIR TO A TURBOCHARGED PISTON INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING THE SAME

The invention relates to a device and a method for supplying fresh air to a turbocharged piston internal combustion engine (2) having a fresh gas line section (8) as an intake manifold which has an adjustable flap (60) and a first end port (10) for medium flowing in and a second end port (9) for medium flowing out, between which ports a pivotably mounted shaft (59) for the adjustable flap (60) is provided in the tubular wall (58), the flap (60) being coupled to an adjustment device (66) for the purpose of adjustment, and a compressed air port (42) with an opening (67) opening into the tubular interior (57) between the flap (60) and the second end port (9), wherein the compressed air port (42) interacts with a quantity regulating device (68) which has a valve (70) with a blocked position and any desired number of opened positions, and can be actuated by means of an electric input (69) which is connected to the terminal (39) of an electronic control unit (38), the adjustment device (66) of ...

DEVICE FOR SUPPLYING FRESH AIR TO A TURBOCHARGED PISTON INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING THE SAME

... ²² The invention relates to a device and a method for supplying fresh air to a ²turbocharged piston internal combustion engine having a fresh gas line section ²as an ²intake manifold which has an adjustable flap and a first end port for medium ²flowing in and a second end port for medium flowing out, between which ports a ²²pivotably mounted shaft for the adjustable flap is provided in the tubular ²wall, the ²flap being coupled to an adjustment device for the purpose of adjustment, and ²a ²compressed air port with an opening opening into the tubular interior between ²the ²flap and the second end port, wherein the compressed air port interacts with a ²²quantity regulating device which has a valve with a blocked position and any ²desired number of opened positions, and can be actuated by means of an ²electric ²input which is connected to the terminal of an electronic control unit, the²adjustment device of the flap being forcibly activated by the quantity ²regulating ²device and/or the electric ...

SPARK-IGNITED INTERNAL COMBUSTION ENGINE

An internal combustion engine comprises a variable compression ratio mechanism (A) capable of varying the mechanical compression ratio and a variable valve timing mechanism (B) capable of controlling the closing timing of an intake valve (7). In a low-load operating range except an idling operation, the mechanical compression ratio is maintained at a maximum mechanical compression ratio, and in the idling operation, the mechanical compression ratio is lower than the maximum mechanical ratio.

ADJUSTABLE THROTTLE LINKAGE FOR OUTBOARD MOTORS

An adjustable throttle linkage for use in an outboard motor having a pivotable throttle valve, and a throttle lever for controlling the position of the throttle valve. The adjustable throttle linkage comprises a connecting link having opposite ends, one end being connected to the throttle lever. The other end of the connecting link is adjustably connected to a control member in turn connected to the throttle valve. The apparatus for adjustably connecting includes a yoke connected to the control member, and the yoke includes a body having a first portion including a central bore adapted to house the threaded portion of the connecting link. The yoke includes a slot including opposed surfaces and housing a thumb wheel, the thumb wheel being threaded onto the threaded portion of the connecting link such that threaded movement of the thumb wheel on the connecting link cause movement of the yoke with respect to the connecting link.

VALVE DEVICE FOR REGULATING AN INTERNAL COMBUSTION ENGINE

VARIABLE FLOW CONTROL METHOD AND DEVICE BETWEEN AIR INTAKE AND THROTTLE

A variable flow control method and device between an air intake and a throttle comprise at least one one-way valve with suitable restoring function between the air intake and the throttle, especially for a fuel-injected car. Corresponding functions can be generated among the one-way valve, an air intake manifold and the throttle to adjust and control an engine so that the engine can rapidly get various rotating rates corresponding to various degrees of vacuum respectively as natural or original air taking can be effectively and rapidly accelerated when the accelerator is trampled rapidly, and reflect the improvement on performances responding to torsion and acceleration of the various rotating rates.

TRACTOR VEHICLE

A tractor (2) is disclosed as a four-wheel drive vehicle with a movable seat back (44), with a seat height adjustment (40) and with a seat load adjustment capability (42). The tractor also has a speed control device (206).

CONTROL DEVICE FOR AUTOMATIC TRANSMISSION FOR VEHICLE

Sticking of a lock-up clutch (LC) is detected on the basis of the temperature (TA) of the hydraulic fluid and the slip ratio (S) of the lock-up clutch (LC). The amount of air taken into an engine is increased while LC sticking is being determined, and the increase in the amount of air taken into the engine is stopped when it has been determined that LC sticking has been released. In this way, any decrease in engine speed is effectively prevented during a period (timing) in which LC sticking occurs, and any sharp increase in engine speed is effectively prevented during a period in which LC sticking does not occur (after sticking has been released). Therefore, any decrease in engine speed during lock-up clutch sticking and any sharp increase in engine speed during release of the sticking can be prevented using a relatively simple control system.

INTERNAL COMBUSTION ENGINE AIR SUPPLY SYSTEM

Motor an Luftfahrzeugen.

Regeleinrichtung für Freikolbenmaschinen.

Verstelleinrichtung für die Regelung der Leistung einer Brennkraftmaschine.

Regeleinrichtung an mit Brennstoff-Einspritzdüsen ausgerüsteten Verbrennungskraftmaschinen.

Dispositif réglant automatiquement le débit d'un courant de carburant en fonction du débit d'un courant d'air.

Einrichtung zur Regelung des Brennstoffzuflusses zum Vergaser an Fahrzeugverbrennungsmotoren.

Apparecchiatura di sicurezza atta a ridurre sovrappressioni nel circuito primario di un reattore nucleare

Verfahren zur Erzeugung eines Unterdrucks mittelst Fahrzeugmotoren, die mit Selbstzündung arbeiten, und Einrichtung auf Kraftwagen zur Ausführung des Verfahrens.

Turbocharger system for air-throttled engines

A turbocharger system for an air-throttled engine includes a variable flow expander (VFE) in the intake air conduit system that supplies intake air to the engine. At part-load operation, the VFE expands the air by an amount that is controllable, and thus regulates the air flow as needed by the engine. The power extracted by the VFE from the intake air flow is fed to the turbocharger, which helps to achieve quicker turbocharger response and improve scavenging of exhaust gases from the engine. The VFE can be a variable expansion ratio turbine.

Engine control apparatus

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

Control apparatus for internal combustion engine

When a working angle of an intake valve is increased in accordance with a deficiency in a working fluid pressure of a VVT mechanism, an electronic control unit corrects an opening degree of a throttle valve so as to increase an intake air amount, and thereby restraining the intake air amount from decreasing in accordance with the increase in the working angle with a valve timing of the intake valve retarded, and hence suppressing a fall in an engine rotational speed.

System and method implementing air shutoff position detection strategy

An engine air shutoff valve system with an improved sensor that facilitates a position detection of the shutoff valve is disclosed. The air shutoff valve system may include a shutoff valve, an indicator, and at least one solid-state proximity sensor. The shutoff valve is moveable between an open and closed position. The indicator is operatively coupled to the shutoff valve. The indicator is movable between a normal state and a tripped state in respective correspondence with the open and closed positions of the shutoff valve. At least one solid-state proximity sensor can be configured to detect when the indicator is in the tripped state.

Method and system for adjusting port throttles

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

SPEED CONTROL APPARATUS AND PROGRAM FOR SPEED CONTROL APPARATUS; AND AUTOMATIC VEHICLE DRIVING APPARATUS, ENGINE DYNAMO CONTROL APPARATUS, AND CONTROL PROGRAMS USED FOR RESPECTIVE APPARATUSES

In order to further improve followability of an actual vehicle speed with respect to a commanded vehicle speed at a starting time point, the present invention is provided with a vehicle speed control part that, a predetermined time before the starting time point that is a time when the commanded vehicle speed rises from zero, sets a clutch position of a vehicle to an initial intermediate position where power is partially transmitted, and at and during a certain period of time after the starting time point, performs clutch feedback control that changes the clutch position depending on a deviation between the actual vehicle speed and the commanded vehicle speed so as to make the actual vehicle speed follow the commanded vehicle speed, wherein the vehicle speed control part sets the initial intermediate position depending on rising commanded acceleration that is a time rate of change at the time when a value of the commanded vehicle speed rises from zero. 1. A speed control apparatus comprising:an actual vehicle speed obtaining part that obtains an actual vehicle speed of a vehicle;a commanded vehicle speed obtaining part that obtains a commanded vehicle speed of the vehicle; anda vehicle speed control part that, a predetermined time before a starting time point that is a time when the commanded vehicle speed rises from zero, sets a clutch position of the vehicle to an initial intermediate position where power is partially transmitted, and after the starting time point, performs clutch feedback control that changes the clutch position depending on a deviation between the actual vehicle speed and the commanded vehicle speed to make the actual vehicle speed follow the commanded vehicle speed, whereinthe vehicle speed control part sets the initial intermediate position depending on rising commanded acceleration that is a time rate of change at the time when a value of the commanded vehicle speed rises from zero.2. A program for a speed control apparatus , the program ...

AIR SUPPLY DEVICE OF STRATIFIED SCAVENGING TWO-CYCLE ENGINE

An air supply device () of a stratified scavenging two-cycle engine includes: a mixture passage () that penetrates a carburetor () and an insulator (), the mixture passage being provided by a carburetor-side mixture passage () and an insulator-side mixture passage (); a air passage () that is provided by a carburetor-side air passage () and an insulator-side air passage (); a throttle valve () provided in a single bore () of the carburetor (), the throttle valve() being provided by a butterfly valve that rotates in conjunction with a throttle operation; and a flow rate regulator () provided inside the air passage (), the flow-rate regulator () bulging inward in the air passage (). At least a part of a periphery of a valve body () of the throttle valve is close to the flow-rate regulator () until the valve body () is rotated from an initial position corresponding to an idling speed at a predetermined rotation angle. 1. An air supply device of a stratified scavenging two-cycle engine , comprising:a carburetor provided with a single bore for air to flow in, the bore having therein a throttle valve provided by a butterfly valve that rotates in conjunction with a throttle operation so that, when the throttle valve is opened, a carburetor-side mixture passage for generated air-fuel mixture to flow in and a carburetor-side air passage for the air to directly flow in are substantially defined on a downstream side of the throttle valve in the bore; andan insulator provided on a downstream side of the carburetor, the insulator provided with an insulator-side mixture passage that is in communication with the carburetor-side mixture passage and an insulator-side air passage that is in communication with the carburetor-side air passage,wherein the air supply device comprises:a mixture passage defined by the carburetor-side mixture passage and the insulator-side mixture passage;an air passage defined by the carburetor-side air passage and the insulator-side air passage; anda flow ...

OPERATOR CONTROL SYSTEM FOR MOTORCYCLE ENGINE IDLE

An operator-controllable valve opens or closes an idle air bypass passage in a motorcycle, allowing an operator astride the motorcycle to set an idle position manually. A handle permits a first adjustment by the operator without use of a screwdriver or other hand tool. An additional interface enables a wider range of adjustment using a hand tool. Both interfaces vary depth of an air mixture screw of the valve within an idle air bypass passage of a throttle body. Dual cylindrical members of the valve rotate relative to one another and relative to a base of the valve, each cylindrical member driven by one of the interfaces. Locking the cylindrical members together such that both rotate in tandem upon the operator moving the handle is accomplished by either tightening the handle or tightening a nut coupling the handle to the valve. A handlebar adjustment lever may couple with the handle. 1. A manually-adjustable idle air control valve for a motorcycle , comprising:a base, the base including at least an adjusting lug channel, the adjusting lug channel disposed through the base including at least a threaded portion of the adjusting lug channel; a threaded portion of the adjusting lug mating with the threaded portion of the adjusting lug channel of the base; and', 'an air mixture screw channel disposed through the adjusting lug and coaxially disposed with the adjusting lug channel of the base, the air mixture screw channel including at least a threaded portion of the air mixture screw channel;, 'an adjusting lug, the adjusting lug including at least a threaded portion of the air mixture screw mating with the threaded portion of the air mixture screw channel of the adjusting lug;', 'a bypass end; and', 'an adjustment end opposite the bypass end, the adjustment end including at least an interface for a hand tool; and, 'an air mixture screw, the air mixture screw including at leasta handle, the handle interfaced with the adjusting lug.2. The manually-adjustable idle air ...

Air supply device of gas engine

An air supply device of a gas engine having a turbocharger includes a first intake passage configured to guide the mixture of outdoor air and unpurified gas into the turbocharger, a second intake passage configured to guide indoor air into the turbocharger, a filter configured to remove a solid impurity in the unpurified gas which is disposed in the first intake passage, a first damper capable of opening and closing the first intake passage disposed on the downstream side of the filter in the first intake passage, a heating unit for heating the indoor air disposed in the second intake passage, a second damper capable of opening and closing the second intake passage disposed on the downstream side of the heating unit in the second intake passage, and a damper control device configured to control the opening degree of each of the first and second dampers.

VEHICLE HAVING SPEED CONTROL UNIT

A tractor is disclosed as a four-wheel drive vehicle with a movable seat back, with a seat height adjustment and with a varying load capability. 1. A vehicle , comprising:a frame;ground engaging elements;an engine for motively driving one or more of the ground engaging elements; and a valve body having an upper end, and a lower end having an intake side and an exhaust side;', 'a gate valve member positioned within the valve body and operated by a guillotine, the gate valve providing an opened and closed condition between the intake side and an exhaust side;', 'a diaphragm positioned at the valve body upper end and operatively connected to the guillotine, a first pressure chamber being defined above and a second pressure chamber being defined below, the diaphragm; and', 'an aperture through the diaphragm connecting the first and second pressure chamber., 'an air valve positioned intermediate an air intake and the engine wherein the air valve is comprised of2. The vehicle of claim 1 , wherein the aperture extends down through the gate valve member.3. The vehicle of claim 1 , further comprising a controller assembly for opening and closing the air valve claim 1 , the assembly including a speed sensing mechanism and a controlling unit for opening and closing the air valve.4. The vehicle of claim 3 , wherein the controlling unit claim 3 , when the vehicle is operating below an upper limit claim 3 , allows the diaphragm to be raised and maintains the guillotine and the gate valve open.5. The vehicle of claim 3 , wherein the controlling unit claim 3 , which when the vehicle operates at a speed approaching the upper limit claim 3 , controls the diaphragm to a closed position claim 3 , which closes the air valve and slows the vehicle.6. The vehicle of claim 3 , wherein the controlling unit is a solenoid valve.7. The vehicle of claim 6 , wherein the solenoid valve is connected to an area above the diaphragm.8. The vehicle of claim 7 , wherein when the vehicle is operating ...

Throttle body structure

A throttle body structure includes a plurality of throttle bores, an idle air control valve that is provided between the throttle bores, a plurality of bypass passages that extend toward a downstream side of the throttle bores, and bypass ports that are arranged between the throttle bores and supply idle air to throttle bores which are spaced apart from the idle air control valve. Compound bypass passages and third bypass passages are arranged parallel to each other. The third bypass passages communicate with the throttle bores arranged adjacent to the idle air control valve, and the compound bypass passages communicate with the bypass ports.

ENGINE FOR A TRANSPORT REFRIGERATION UNIT WITH AIR MANAGEMENT VALVE

Disclosed is a transport refrigeration unit (TRU) having: an engine configured to power a refrigeration system of the TRU, the engine including an air intake, the engine within an engine compartment of the TRU; an air management valve (AMV) fluidly coupled to the air intake; a first duct fluidly coupled to the AMV and including a first inlet within the engine compartment; and a second duct fluidly coupled to the AMV and including a second inlet that is exterior to the engine compartment and is configured to receive atmospheric air; wherein: the AMV is configured to modulate air into the engine from the first duct and the second duct, when a temperature of air within the AMV is above the first threshold and the temperature of air within the second duct is below the first threshold, to lower the temperature of air entering the engine to below the first threshold. 1. A transport refrigeration unit (TRU) comprising:an engine configured to power a refrigeration system of the TRU, the engine including an air intake, the engine within an engine compartment of the TRU;an air management valve (AMV) fluidly coupled to the air intake;a first duct fluidly coupled to the AMV and including a first inlet within the engine compartment; anda second duct fluidly coupled to the AMV and including a second inlet that is exterior to the engine compartment and is configured to receive atmospheric air;wherein:the AMV is configured to modulate air into the engine from the first duct and the second duct, when a temperature of air within the AMV is above the first threshold and the temperature of air within the second duct is below the first threshold, to lower the temperature of air entering the engine to below the first threshold.2. The TRU of wherein:the AMV is configured to be full closed when a temperature of air within the AMV and air within the second duct are both below a first threshold, whereby the first duct is fluidly connected to the engine and the second duct is fluidly sealed ...

ACCELERATION CONTROL METHOD THROUGH THROTTLE DUALIZATION AND VEHICLE USING THE SAME

An acceleration control method through throttle dualization may include detecting a signal of an accelerator pedal scope (APS) by pressing of an accelerator pedal while a vehicle travels determines, by an electronic controller, whether the APS is rapidly changed, performing a first throttle response mode in which acceleration control is performed using a current intake manifold pressure when the APS is not determined to be rapidly changed, and performing a second throttle response mode in which acceleration control is performed using a target intake manifold pressure when the APS is determined to be rapidly changed. 1. An acceleration control method through throttle dualization comprising;detecting a signal of an accelerator pedal scope (APS) by pressing of an accelerator pedal while a vehicle travels by an electronic controller determining whether the APS is changed faster than a predetermined value,performing a first throttle response mode in which the acceleration control is performed using a current intake manifold pressure when the APS is not determined to be changed faster than the predetermined value, andperforming a second throttle response mode in which acceleration control is performed using a target intake manifold pressure when the APS is determined to be changed faster than the predetermined value.2. The acceleration control method of claim 1 , wherein the second throttle response mode includes:monitoring data of a driving condition according to the traveling of the vehicle by the electronic controller and detecting the APS;detecting an acceleration response improvement condition of the vehicle when the APS is detected, and determining that the APS is changed faster than the predetermined value, after the acceleration response improvement condition is satisfied;determining a first throttle response parameter according to the target intake manifold pressure after the APS is determined to be changed faster than the predetermined value;determining a first ...

CONTROL APPARATUS FOR VEHICLE

A first control unit executes a valve stop inertial running including stopping an intake valve and an exhaust valve in a closed state during rotation of an output shaft, stopping supply of fuel to an engine, and setting a clutch in an engaged state to drive pistons of the engine by a rotational force from driving wheels. A second control unit executes a valve operation running including operating the intake valve and the exhaust valve during the rotation of the output shaft, and supplying the fuel to the engine based upon an intake conduit pressure. When a cancellation request is made during execution of the valve stop inertial running, a transient control unit operates the intake valve and the exhaust valve, and controls a throttle valve to an idling opening or less, thereby supplying a negative pressure to an intake passage. 1. A control apparatus for a vehicle configured to control a vehicle comprising a valve operation mechanism that can stop an intake valve and an exhaust valve in an engine in a closed state during rotation of an output shaft in the engine , and a clutch that can switch a power transmission route between the engine and a driving wheel between an engaged state and a disengaged state , comprising:a first control unit configured to execute a valve stop inertial running including stopping the intake valve and the exhaust valve in the closed state during the rotation of the output shaft, stopping supply of fuel to the engine, controlling a throttle valve of the engine to an idling opening or less, and setting the clutch in the engaged state to drive pistons of the engine by a rotational force from the driving wheel through the output shaft;a second control unit configured to execute a valve operation running including operating the intake valve and the exhaust valve during the rotation of the output shaft, and supplying the fuel to the engine; anda transient control unit configured to execute a transient running including operating the intake valve ...

SYSTEM AND METHOD FOR CONTROLLING A VEHICLE

A vehicle is provided including an electronic power steering system, an electronic throttle control system, and a stability control system. 1. A power steering method for a vehicle , the method including:detecting, by a controller of a power steering system, a selected gear of a transmission of the vehicle;determining, by the controller, a power steering assist level based on the selected gear of the transmission and a user torque input to a steering assembly of the vehicle; andoutputting, by the power steering system, steering torque assistance to the steering assembly of the vehicle based on the power steering assist level.2. The method of claim 1 , wherein the controller determines a first power steering assist level for a low range gear of the transmission and a second power steering assist level for a high range gear of the transmission claim 1 , the first power steering assist level being greater than the second power steering assist level.3. The method of claim 1 , further including detecting a ground speed of the vehicle based on output from a ground speed sensor claim 1 , wherein the determining the power steering assist level is further based on the detected ground speed.4. The method of claim 3 , wherein the power steering assist level for a same selected gear of the transmission is greater for low ground speeds than for high ground speeds.5. The method of claim 1 , further including estimating claim 1 , by the controller claim 1 , a ground speed of the vehicle based on the engine speed claim 1 , a predetermined maximum engine speed claim 1 , and a predetermined maximum ground speed claim 1 , wherein the determining the power steering assist level is further based on the estimated ground speed.6. The method of claim 1 , further including detecting a driveline condition of the vehicle claim 1 , the determining the power steering assist level further being based on the driveline condition claim 1 , wherein the driveline condition includes at least one of a ...

SUPERCHARGER SYSTEM FOR MOTORZIED VEHICLES AND RELATED TRANSPORTATION

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

CYLINDER PRESSURE BASED CONTROL OF DUAL FUEL ENGINES

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

PRESSURIZED AIR INDUCTION SYSTEM

Methods are provided for engines. In one example method, at higher engine load, cool compressed air is drawn into an engine via an air intake passage, and at lower engine load, ambient air is drawn into the engine via a duct while retaining cooled compressed air in the air intake passage. The compressed air may be released from the air intake passage based on heat transferred to the compressed air during the lower engine load, in at least one example. 1. A method for an engine , comprising:at lower engine load,storing cooled boost air in an intake passage while simultaneously flowing ambient air into an intake manifold of the engine via a duct; and thenresponsive to an inferred temperature of the stored cooled boost air exceeding a threshold temperature, decreasing an amount of the ambient air flowed into the intake manifold of the engine and flowing the stored cooled boost air to the intake manifold.2. The method of wherein a boost throttle coupled to the intake passage is opened to flow the stored cooled boost air to the intake manifold.3. The method of wherein the boost throttle is further opened to flow the cooled boost air into the intake manifold responsive to a period of time that the cooled boost air has been stored in the air intake passage exceeding a time threshold.4. The method of claim 1 , wherein decreasing the amount of the ambient air flowed into the intake manifold of the engine includes adjusting a position of an air throttle coupled in the duct to a more closed position.5. The method of claim 1 , further comprising claim 1 , at higher engine load claim 1 , drawing further cooled boost air directly into the intake manifold of the engine via the air intake passage. The present application is a divisional of U.S. Non-Provisional patent application Ser. No. 16/803,357, entitled “PRESSURIZED AIR INDUCTION SYSTEM,” and filed on Feb. 27, 2020, which is a divisional of application Ser. No. 15/826,401, entitled “PRESSURIZED AIR INDUCTION SYSTEM,” and filed ...

SENSOR ARRANGEMENT OF INTERNAL COMBUSTION ENGINE

A sensor arrangement of an internal combustion engine includes an intake duct including one or more curved parts bent or curved and connecting an intercooler and a throttle; and a pressure sensor provided on the intake duct and configured to detect a pressure in the intake duct. The pressure sensor includes a detector disposed close to an outside curved portion of a curved part. 1. A sensor arrangement of an internal combustion engine comprising:an intake duct including one or more curved parts bent or curved and connecting an intercooler and a throttle; anda pressure sensor provided on the intake duct and configured to detect a pressure in the intake duct,wherein the pressure sensor includes a detector disposed close to an outside curved portion of a curved part.2. The sensor arrangement according to claim 1 ,wherein the curved part at the lowermost downstream position of the intake duct has an outside curved portion and an inside curved portion,wherein the curved part has an imaginary straight line connecting the vertex of the outside curved portion and the vertex of the inside curved portion,wherein the curved part has an imaginary perpendicular bisector of the imaginary straight line, andwherein the pressure sensor includes an detector disposed closer to the outside curved portion than the imaginary perpendicular bisector.3. The sensor arrangement according to claim 2 ,wherein one curved portion of the outside curved portion and the inside curved portion has a constant curvature,wherein said one curved portion has a starting point and an ending point of a curve, andwherein the center point of the starting point and the ending point is set to a reference point of the imaginary straight line.4. The sensor arrangement according to claim 1 ,wherein the detector is provided outside of an outside wall line of a downstream end of the intake duct connected to the throttle.5. The sensor arrangement according to claim 2 ,wherein the detector is provided outside of an ...

Multiple Engine Block and Multiple Engine Internal Combustion Power Plants for Both Stationary and Mobile Applications

Power plants using multiple identical engine block assemblies to form multiple engines, each contributing to a common output or outputs, and each using an intake manifold, an exhaust manifold and an air rail. Air is first compressed by some engine cylinders and delivered to the air rail, and then coupled to combustion cylinders from the air rail. Compressions and combustion may be in the same cylinders, the same engine block assembly but different cylinders or in different engine block assemblies. Multiple engines in the power plants are less costly than single large engines because of the quantity of manufacture and ease of maintenance. Various embodiments are disclosed. 1. A multiple engine block internal combustion power plant comprising:first and second identical engine block assemblies, each having N pistons therein in N cylinders and each piston being coupled to a respective crankshaft through respective connecting rod assembles, and each having an engine head thereon to form one of the identical engine block assemblies;at least one intake manifold, at least one exhaust manifold and at least one air rail being coupled to each engine assembly;the identical engine block assemblies being side by side;the first and second identical engine block assemblies being connected to the same air rail, or to the same intake and exhaust manifolds.2. The power plant of wherein at least one cylinder in each identical engine block assembly is dedicated as a compression cylinder having at least one valve coupled to the intake manifold for taking in air during an intake stroke of the respective piston and at least one air valve coupled to the air rail for delivering pressurized air to the air rail during a compression stroke of the respective piston.3. The power plant of wherein at least one cylinder in each identical engine block assembly is dedicated as a combustion cylinder having at least one valve coupled to the air rail for taking in pressurized air from the air rail claim ...

APPARATUS AND METHOD FOR CONTROLLING INTAKE SURGE NOISE OF ENGINE OF VEHICLE

An apparatus and a method for controlling intake surge noise of an engine of a vehicle are provided to suppress generation of noise due to an intake surge using an opening/closing location of a throttle valve and a time control when an intake surge pressure is generated. In particular, surge pressure and surge noise are removed by excluding an existing anti-surge valve or an existing intake purge valve, and determining whether intake surge generation conditions including a fuel supply state, intake pressures at front and rear ends of a throttle valve, a vehicle speed, and an engine speed to control an opening degree of the throttle valve for a predetermined time period. 1. An apparatus for controlling intake surge noise of an engine of a vehicle , comprising:an accelerator pedal engagement degree detection sensor configured to detect an engagement degree associated with a closed state of a throttle valve, while the vehicle is accelerated;a first pressure sensor configured to detect an intake pressure at a front end of the throttle valve;a speed sensor configured to detect a current vehicle speed;an engine revolutions per minute (RPM) sensor configured to detect a current engine speed; anda controller configured to interrupt a supply of a fuel into an engine and open the throttle valve at a predetermined degree for a predetermined time period simultaneously, when the throttle valve is closed, a detection value of the first pressure sensor is a threshold pressure or greater, and the vehicle speed and the engine speed are threshold values or greater.2. The apparatus of claim 1 , further comprising:a second pressure sensor configured to detect an intake pressure in an intake manifold at a rear end of the throttle valve.3. A method for controlling intake surge noise of an engine of a vehicle claim 1 , comprising:detecting, by a sensor, a closed state of a throttle valve while the vehicle is accelerated;detecting, by the sensor, an intake pressure in an intake manifold at ...

FUEL SUPPLY APPARATUS FOR ENGINE

An engine fuel supply apparatus includes: a fuel chamber provided in a carburetor; a first communication passage for opening the interior of the fuel chamber to the atmosphere; a second communication passage for communicating the interior of the fuel chamber with the interior of a Venturi section; and a passage switching section capable of switching between the first and second communication passages and mechanically connected to the main switch so that it can operate in response to the main switch shifting between an ignition position and a stop position. The passage switching section switches the second communication passage to the first communication passage in response to the main switch shifting from the stop position to the ignition position and switches the first communication passage to the second communication passage in response to the main switch shifting from the ignition position to the stop position.

INTAKE DEVICE

An air intake device offers simplified construction, reduced size, lowered cost, etc., while facilitating disposing of throttle body and driving part in intake air passage, allowing throttle body to be reliably held, and eliminating possible occurrence of intake air leakage, etc., thus positively securing the performance. The air intake device includes an actuator and an intake air manifold made of resin. In actuator, there are provided a throttle body, a throttle valve, a motor for opening/closing throttle valve, and a power transmission mechanism. Throttle valve and motor are positioned and held on one side of a support member, and power transmission mechanism is on the other side. In intake air manifold, a housing chamber is provided. When a fixing part of support member is jointed to a part to be fixed of intake air manifold, throttle body and motor are accommodated in a predetermined position in housing chamber. 1. An air intake device , comprising:a throttle body for defining a throttle bore;a throttle valve for opening/closing said throttle bore;a motor for driving said throttle valve to open/close the same;a power transmission mechanism for transmitting drive power of said motor to said throttle valve;a support member for positioning and holding, on one side, said throttle body and said motor, and positioning and holding, on the other side, said power transmission mechanism; anda passage member formed of a resin material for defining an intake air passage together with said throttle bore,wherein said passage member is provided with a housing chamber for accommodating said throttle body and said motor.2. The air intake device according to claim 1 , wherein said support member has a fixing part formed so as to be jointed to said passage member claim 1 , andwith the fixing part being jointed to said passage member, said throttle body and said motor are accommodated in a predetermined position in the housing chamber.3. The air intake device according to claim 1 ...

AIR PATH CONTROL FOR ENGINE ASSEMBLY WITH WASTE-GATED TURBINE

An engine assembly includes an engine, a compressor, a turbine and a waste gate valve. A controller has a processor and a tangible, non-transitory memory on which is recorded instructions for executing a method of air path control based on an air path model. The controller is configured to determine a turbine power (P) as a function of a first factor (x) and a second factor (x). A compressor power (P) is determined as a function of a third factor (y) and a fourth factor (y). The controller is configured to control at least one of an intake throttle pressure (p) and an intake manifold pressure (p) by varying at least one of the first through fourth factors (x, x, y, y). The engine output is controlled based on at least one of the intake throttle and manifold pressures. 1. An engine assembly comprising:{'sub': 't', 'an engine, an intake air throttle and a turbine operatively connected to one another, the turbine being operable at a turbine speed (N);'}a compressor operatively connected to the engine;{'sub': 'pos', 'a waste gate valve operatively connected to the turbine and configured to have a variable waste gate position (WG);'}a controller operatively connected to the turbine and the intake air throttle; [{'sub': t', '1', '2, 'determine a turbine power (P) of the turbine as a function of a first factor (x) and a second factor (x);'}, {'sub': c', '1', '2, 'determine a compressor power (P) of the compressor as a function of a third factor (y) and a fourth factor (y);'}, {'sub': th', 'i', '1', '2', '1', '2, 'control at least one of an intake throttle pressure (p) and an intake manifold pressure (p) by varying at least one of the first, second, third and fourth factors (x, x, y, y); and'}, {'sub': th', 'i, 'control an output of the engine based in part on at least one of the intake throttle pressure (p) and the intake manifold pressure (p).'}], 'wherein the controller has a processor and a tangible, non-transitory memory on which is recorded instructions for executing ...

Stop control apparatus for internal combustion engine

A stop control apparatus ( 100 ) for an internal combustion engine performs stop control of a three-or-less cylinder internal combustion engine ( 200 ). The stop control apparatus for the internal combustion engine is provided with: a determining device ( 161 ) configured to determine a compression stroke immediately before the internal combustion engine stops; and a throttle valve controlling device ( 168 ) configured to control an opening degree of a throttle valve ( 208 ) to be a predetermined opening degree while an intake valve ( 211 ) is closed in all cylinders, in the compression stroke immediately before the internal combustion engine stops, which is determined by the determining device. This reduces an influence of an intake negative pressure in an intake stroke, and makes it possible to preferably control the crank angle when the engine stops, even in the three-or-less cylinder internal combustion engine.

GOVERNOR SYSTEM ASSEMBLY

A governor system assembly and related method for assembling the same. The assembly may include a governor gear, a weight, and a locking pin pivotably coupling the weight to the governor gear along a pivot axis. The locking pin includes a locking segment rotatable into engagement with the gear about the pivot axis for securing the pin to the gear. In one assembly, the locking pin is rotatable between an unlocked position in which the locking pin is axially removable from the gear and a locked position in which a locking pin is not axially removable when the locking segment engages the gear. The locking pin may be L-shaped in some assemblies. 1. A governor system assembly for an engine , the assembly comprising:a governor gear;a weight;a kicking pin pivotably coupling the weight to the governor gear along a pivot axis, the locking pin having a locking segment selectively rotatable into engagement with the governor gear about the pivot axis for securing the locking pin to the governor gear.2. The assembly of claim 1 , wherein the locking pin is rotatable between an unlocked position and a locked position in which a locking segment engages the governor gear.3. The assembly of claim 2 , wherein the locking pin is axially removable from the governor gear along the pivot axis in the unlocked position and the locking pin is not axially removable from the governor gear in the locked position.4. The assembly of claim 1 , wherein the locking pin further includes a hinge segment which pivotably couples the weight to the governor gear.5. The assembly of claim 4 , wherein the locking segment of the locking pin is arranged off axis from the hinge segment.6. The assembly of claim 1 , wherein the locking pin is generally L-shaped.7. The assembly of claim 1 , wherein the governor gear includes a pin retaining element configured to engage the locking segment of the locking pin.8. The assembly of claim 7 , wherein the pin retaining element is an elongated locking slot.9. The assembly ...

VEHICLE OPERATION SYSTEM AND METHOD

A snowmobile includes a frame with a tunnel, a fuel tank disposed thereon and an engine connected thereto. A throttle body fluidly communicates with the engine. A throttle valve is disposed in the throttle body for regulating fluid flow through the throttle body into the engine, a position of the throttle valve being movable between an open position and a closed position. A throttle operator connected to the frame to control the position of throttle valve is moveable between an idle position and a drive position. A throttle valve actuator operatively connected to the throttle valve and the throttle operator controls a position of the throttle valve based at least in part on the throttle operator position, the throttle valve actuator being an electric throttle valve actuator and disposed longitudinally between the fuel tank and the engine. Vehicles and methods of operating the vehicles are also disclosed. 1. A snowmobile comprising:a frame comprising a longitudinally extending tunnel;a fuel tank disposed on the tunnel;an engine connected to the frame;a throttle body fluidly communicating with the engine;a throttle valve disposed in the throttle body for regulating fluid flow through the throttle body into the engine, a position of the throttle valve being movable between an open position and a closed position;a throttle operator connected to the frame to control the position of throttle valve, the throttle operator being moveable between an idle position and a drive position;a throttle valve actuator operatively connected to the throttle valve and the throttle operator, the throttle valve actuator controlling a position of the throttle valve based at least in part on the throttle operator position, the throttle valve actuator being an electric throttle valve actuator, the throttle valve actuator being disposed longitudinally between the fuel tank and the engine.2. The snowmobile of claim 1 , wherein the fuel tank comprises a portion extending forwardly of the tunnel ...

SEA WATER INFLOW PREVENTION DEVICE FOR A MARINE ENGINE

A sea water inflow prevention device for a marine engine, includes; an intake valve that is installed at an air inlet of the marine engine to open or close the air inlet; and a valve drive portion that one side thereof is connected with the air inlet that is disposed between the intake valve and the marine engine, the other side thereof is connected with the air intake valve, makes the air intake valve open the air inlet, when a negative pressure inside the air inlet becomes larger than a tension of a spring member provided inside, and makes the air intake valve close the air inlet, when the negative pressure inside the air inlet is less than a tension of the spring member. 1. A sea water inflow prevention device for a marine engine , comprising;an intake valve that is installed at an air inlet of the marine engine to open or close the air inlet; anda valve drive portion that one side thereof is connected with the air inlet that is disposed between the intake valve and the marine engine, the other side thereof is connected with the air intake valve, makes the air intake valve open the air inlet, when a negative pressure inside the air inlet becomes larger than a tension of a spring member provided inside, and makes the air intake valve close the air inlet, when the negative pressure inside the air inlet is less than a tension of the spring member.2. The sea water inflow prevention device for a marine engine of claim 1 , wherein the valve drive portion includes claim 1 ,a drive body that has a pipe shape having a space portion, a connection line is formed to connect the air inlet with the space portion, and the spring member is inserted inside,a moving plate that is slidably inserted into the drive body and is elastically supported by the spring member, anda driving connection member that one end is connected to the moving plate and the other end is connected to the air intake valve, and drives the air intake valve in response to the movement of the moving plate to ...

PRESSURIZED AIR INDUCTION SYSTEM

Methods and systems are provided for boosted engines. In one example, a method for a boosted engine method may include storing compressed air in a reservoir for supply to the engine during increased engine load operating conditions and replenishing the air in response to pressure dropping below a nominal threshold; and increasing the pressure beyond the nominal threshold in response to increased temperature of the stored air in the reservoir even when operating conditions include decreased engine load, and purging the increased temperature stored air to bring pressure back down toward the nominal threshold. In one example, increasing pressure to the reservoir may include supplying compressed air from an air suspension system. In one example, increasing pressure to the reservoir may include supplying compressed air from an air compressor separate from an engine turbocharger compressor. In one example, the method may include, in response to a vehicle operator tip-in during the increasing of the pressure beyond the nominal threshold, simultaneously supplying stored compressed air to the engine while replenishing the air. 1. A boosted engine method , comprising:storing compressed air in a reservoir for supply to the engine during increased engine load operating conditions and replenishing the air in response to pressure dropping below a nominal threshold; andincreasing the pressure beyond the nominal threshold in response to increased temperature of the stored air in the reservoir even when operating conditions include decreased engine load, and purging the increased temperature stored air to bring pressure back down toward the nominal threshold.2. The method of wherein increasing the pressure includes supplying the compressed air from an air suspension system.3. The method of wherein increasing the pressure includes supplying the compressed air from an air compressor separate from an engine turbocharger compressor.4. The method of further comprising claim 1 , in ...

Electric throttle device and controlling system therof

An electric throttle device and a controlling system used for a portable gasoline engine may include a rotation shaft and a throttle mounted on the rotation shaft, the throttle working to open or close the intake channel, and may further include a power unit, a transmission unit in a transmission connection with the power unit, and a controller. The transmission unit is matched with the rotation shaft, and the controller includes a circuit driving module for driving the power unit to control the opening or closing of the throttle. The electric throttle device enables co-movement of the throttle and the choker as well as automatic opening or closing.

Engine system

An engine system including a drainage passage connected to a third portion of an intake passage that is on a downstream side relative to a supercharger and on an upstream side relative to a throttle valve; a drainage valve configured to open and close the drainage passage; an exhaust bypass passage connected to a first portion of the exhaust passage and a fourth portion of the exhaust passage on upstream side relative to the supercharger, and provided to deliver gas flowing in the fourth portion of the exhaust passage to the first portion of the exhaust passage; a wastegate valve configured to adjust a passage area of the exhaust bypass passage; and a controller. The controller may be configured to reduce an opening degree of the wastegate valve, reduce an opening degree of a throttle valve, and open the drainage valve.

VEHICLE AND INTAKE AMOUNT CONTROL DEVICE

In a vehicle, a CPU of an ECU calculates a rotation speed of an engine based on an assumption that a clutch is in a connected state based on a speed of a vehicle detected by a vehicle speed sensor as a hypothetical engine rotation speed. Subsequently, the CPU acquires a target degree of opening of a throttle valve based on the calculated hypothetical engine rotation speed and a set target engine torque. Then, the CPU controls a throttle drive device such that an actual degree of opening of the throttle valve is the acquired degree of opening. 115-. (canceled)16. A vehicle comprising:a main body;an engine that generates a torque to move the main body;a drive wheel driven by the engine;a clutch configured to switch between a connected state in which the torque is transmitted between the engine and the drive wheel, and a disconnected state in which the torque is not transmitted between the engine and the drive wheel;an intake amount adjustor configured to adjust an intake amount of the engine by changing a control parameter corresponding to the intake amount of the engine;a movement speed detector configured to detect a movement speed of the main body; anda controller programmed and configured to, during deceleration of the vehicle, calculate a rotation speed of the engine based on an assumption that the clutch is in the connected state based on the movement speed detected by the movement speed detector as a hypothetical engine rotation speed, to acquire a target value of the control parameter as a first value based on the hypothetical engine rotation speed and a set target engine torque, and to set the control parameter of the intake amount adjustor to the first value.17. The vehicle according to claim 16 , further comprising a gear ratio detector configured to detect a gear ratio between the engine and the drive wheel; whereinthe controller is programmed and configured to calculate the hypothetical engine rotation speed based on the movement speed detected by the ...

Gas Engine Fast Start Fuel Strategy

A priming system for an engine system having a throttle valve configured to regulate a flow of air and fuel into an intake manifold of an engine is disclosed. The priming system may include a first sensor configured to generate a first sensor signal indicative of a value of an engine parameter, an auxiliary fuel line configured to direct fuel from a fuel source to a primed cylinder subset of the plurality of cylinders, an auxiliary fuel valve disposed in the auxiliary fuel line, and a controller in communication with the first sensor and the auxiliary fuel valve. The controller may be configured determine the value of the engine parameter from the first sensor signal and cease directing fuel from the auxiliary fuel line to the primed cylinder subset when the engine parameter value is greater than or equal to a threshold engine parameter value.

ENGINE SYSTEM

An engine system may include an engine having an intake line flowing an intake gas supplied to the combustion chambers; an intake manifold; a throttle valve provided at a front of the intake manifold and controlling an air amount supplied to the combustion chamber; an electric supercharger provided at the throttle valve and including a motor and an electric compressor operated by the motor to supply the supercharged air to the combustion chamber; an exhaust gas processing device purifying an exhaust gas generated in the combustion chamber; and an exhaust gas recirculation device including a recirculation line branched from the downstream portion of the exhaust gas processing device and joined to the intake line of the upstream portion of the electric compressor, an EGR cooler mounted at the recirculation line, and an EGR valve mounted at a part where the recirculation line and the intake line are joined. 1. An engine system comprising:an engine including a plurality of combustion chambers generating a driving torque by combustion of a fuel;an intake line flowing an intake gas supplied to the combustion chambers;an intake manifold distributing the intake gas flowing through the intake line into the plurality of combustion chambers;a throttle valve provided at a front of the intake manifold and controlling an air amount supplied to the combustion chambers;a supercharger provided at an upstream portion of the throttle valve and including a motor and a compressor operated by the motor to supply the supercharged air to the combustion chambers;an exhaust gas processing device purifying an exhaust gas generated in the combustion chambers; andan exhaust gas recirculation device including a recirculation line branched from a downstream portion of the exhaust gas processing device and joined to the intake line of the upstream portion of the electric compressor, an exhaust gas recirculation (EGR) cooler mounted at the recirculation line, and an EGR valve mounted at a place ...

AIR-BYPASS VALVE CONTROL DEVICE

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

THROTTLE VALVE ABNORMALITY DETERMINATION DEVICE

A throttle valve abnormality determination device includes a permission/rejection determination unit configured to determine whether or not to permit a sticking determination of a throttle valve. The determination unit is configured to prohibit the sticking determination if a first temperature, which is a temperature in a passage through which intake air flows, is less than or equal to a freezing temperature at which the throttle valve may be frozen when an engine is started and, after prohibiting the sticking determination, permit the sticking determination if an integrated value of a heat amount conversion value based on a second temperature, which is a temperature in the passage, and an intake air amount exceeds a threshold value when the second temperature is greater than or equal to a de-freezing temperature at which a frozen portion of the throttle valve is de-frozen. 1. A throttle valve abnormality determination device comprising:a first temperature acquisition unit configured to acquire a first temperature that is a temperature in a passage through which intake air flows;a second temperature acquisition unit configured to acquire a second temperature that is a temperature in the passage;an air amount acquisition unit configured to acquire an intake air amount that is a mass flow rate of the intake air; anda permission/rejection determination unit configured to determine whether or not to permit a sticking determination of a throttle valve based on the first temperature, the second temperature, and the intake air amount, whereinthe permission/rejection determination unit is configured to:prohibit the sticking determination if the first temperature is less than or equal to a freezing temperature at which the throttle valve may be frozen when an engine is started; andafter prohibiting the sticking determination, permit the sticking determination if an integrated value of a heat amount conversion value based on the second temperature and the intake air amount ...

Control system for compression ignition engine

A control system for a compression ignition engine is provided, which includes a combustion chamber, a throttle valve, an injector, an ignition, a swirl control valve, a sensor and a controller. The controller is configured to execute a first mode module, a second mode module, and a changing module to change an engine mode from a first mode to a second mode in response to a change demand. The changing module outputs signals to the throttle valve and the injector in response to the demand so that an air-fuel ratio of mixture gas becomes a stoichiometric air-fuel ratio, and outputs a signal to the swirl control valve so that an EGR gas amount decreases more than before the demand, and when the EGR gas amount is determined to be decreased to a given amount, the changing module causes the second mode module to start the second mode.

BUTTERFLY BYPASS VALVE, AND THROTTLE LOSS RECOVERY SYSTEM INCORPORATING SAME

A butterfly bypass valve includes a housing defining a bypass flow passage with a pivotable throttle plate therein. An outer edge of the throttle plate in a closed position is in sealing engagement with a sealing portion of the housing such that the throttle plate restricts fluid flow through the bypass flow passage. The throttle plate is pivotable to an open position to allow fluid flow through the bypass flow passage. A port in the housing allows a portion of fluid passing through the bypass flow passage to be removed when the throttle plate is pivoted to the open position. A predetermined amount of pivoting of the throttle plate toward the open position can occur so as to allow flow through the port, while maintaining the edge of the throttle plate in substantially sealing engagement with the sealing portion so as to substantially prevent flow through the bypass passage. 1. A butterfly bypass valve , comprising:a housing defining a bypass flow passage therethrough;a throttle plate disposed in the bypass flow passage, the throttle plate being pivotable about a pivot axis oriented transverse to a flow direction through the bypass flow passage, an outer peripheral edge of the throttle plate being in substantially sealing engagement with a sealing portion of an inner surface of the housing when the throttle plate is in a closed position such that the throttle plate substantially restricts fluid flow through the bypass flow passage, the throttle plate being pivotable to an open position in which portions of the edge of the throttle plate are spaced from the inner surface to allow fluid flow through the bypass flow passage; anda port defined through the housing for allowing a portion of fluid passing through the bypass flow passage to be removed through the port, the edge of the throttle plate restricting fluid flow into the port when the throttle plate is in the closed position, the port being uncovered to allow fluid flow into the port when the throttle plate is ...

METHODS AND SYSTEMS FOR BOOST CONTROL

Methods and systems are provided for mitigating excessive exhaust pressures in an engine. In one example, a method may include adjusting an intake throttle responsive to exhaust pressure upstream of an exhaust turbine being higher than a threshold without reducing boost level. In this way, boost pressures may be maintained while reducing exhaust pressures. 1. A method for an engine , comprising:adjusting an intake throttle responsive to pre-turbine exhaust pressure greater than a threshold without reducing boost level and while maintaining valve timing.2. The method of claim 1 , wherein the pre-turbine exhaust pressure is a predicted pressure.3. The method of claim 2 , wherein the pre-turbine exhaust pressure is modeled based on a post-turbine exhaust manifold pressure.4. The method of claim 3 , wherein the engine includes a soot filter coupled downstream of a turbocharger turbine claim 3 , and wherein the pre-turbine exhaust pressure is further modeled based on soot load of the soot filter and the boost level.5. The method of claim 4 , wherein the pre-turbine exhaust pressure is further modeled based on one or more of engine air flow claim 4 , exhaust flow claim 4 , spark timing claim 4 , air-fuel ratio claim 4 , cam timing claim 4 , manifold temperature claim 4 , vehicle speed claim 4 , and manifold pressure.6. The method of claim 3 , wherein the post-turbine exhaust manifold pressure is estimated by an exhaust pressure sensor.7. The method of claim 1 , wherein the adjusting includes reducing an opening of the intake throttle until the pre-turbine exhaust pressure is below the threshold claim 1 , the threshold based on a pressure required to force open a closed exhaust valve.8. The method of claim 7 , wherein the adjusting includes reducing an opening of the intake throttle for a threshold duration claim 7 , and responsive to the pre-turbine exhaust pressure remaining greater than the threshold after the threshold duration claim 7 , reducing boost level by ...

ENGINE COLD-START CONTROL

Methods and systems are provided for improving engine startability during cold-start conditions, when operating with gasoline fuels, alcohol fuels, or blended fuels. In one example, a method of engine cold-start control may include initiating fuel injection for cylinder combustion with manifold pressure lowered via intake throttle adjustments. The manifold pressure is lowered based on an optimization between cylinder charge reduction and improved fuel boiling at the lower pressure. 1. A method for an engine comprising:during an engine cold-start,determining a fuel injection including an amount of fuel and a timing of injection based on engine operating conditions; andlowering manifold pressure for a first combustion event of each engine cylinder at the cold-start based on an estimate of fuel temperature at an end of the injection.2. The method of claim 1 , wherein the lowering includes lowering the manifold pressure to a set-point based on a change in boiling point of the injected fuel with pressure.3. The method of claim 2 , wherein the set-point is based on the change in boiling point of the injected fuel relative to a change in volume of cylinder aircharge with pressure.4. The method of claim 2 , wherein the lowering is further based on an alcohol content of the injected fuel claim 2 , the manifold pressure lowered to a smaller value as the alcohol content of the injected fuel increases.5. The method of claim 1 , wherein lowering manifold pressure includes reducing an opening of an intake throttle.6. The method of claim 1 , further comprising claim 1 , raising the manifold pressure for a second combustion event in each engine cylinder claim 1 , the second combustion event immediately following the first combustion event of each engine cylinder.7. The method of claim 6 , further comprising claim 6 , injecting fuel as a single compression stroke injection on the first combustion event of each engine cylinder.8. The method of claim 7 , further comprising claim 7 , ...

FAIL SAFE DEVICE OF ENGINE

A fail safe device of an engine includes: a temperature setting module; a torque estimation module; and a torque monitoring module. The temperature setting module sets a value of a predetermined temperature parameter used in an estimation of a generation torque of the engine. The torque estimation module estimates the generation torque of the engine by using a set value of the predetermined temperature parameter set by the temperature setting module. The torque monitoring module decreases the generation torque of the engine, when the generation torque estimated by the torque estimation module is larger than a driver expected torque by a predetermined value or more. 1. A fail safe device of an engine comprising:a temperature setting module configured to set a value of a predetermined temperature parameter used in an estimation of a generation torque of the engine;a torque estimation module configured to estimate the generation torque of the engine by using a set value of the predetermined temperature parameter set by the temperature setting module; anda torque monitoring module configured to decrease the generation torque of the engine, when the generation torque estimated by the torque estimation module is larger than a driver expected torque by a predetermined value or more,wherein the temperature setting module maintains a current set value of the predetermined temperature parameter when a difference between an input value of the predetermined temperature parameter and the current set value exceeds a predetermined change amount restrictive value, and updates the set value with the input value of the predetermined temperature parameter when the difference between the input value of the predetermined temperature parameter and the current set value does not exceed the predetermined change amount restrictive value.2. The fail safe device of an engine according to claim 1 , whereinwhen the difference between the input value of the predetermined temperature parameter ...

INCREASING BRAKING POWER AND EXHAUST GAS TEMPERATURE

A controller may identify an indication to initiate an engine braking procedure associated with an engine of a machine. The controller may obtain, based on identifying the indication to initiate the engine braking procedure, information relating to a requested amount of engine braking power of the engine. The controller may cause one or more components of a variable geometry turbocharger (VGT) of the engine to adjust, and a throttle valve of the engine to adjust, based on the information relating to the requested amount of engine braking power of the engine. 1. A method , comprising:identifying, by a controller, an indication to initiate an engine braking procedure associated with an engine of a machine;obtaining, by the controller and based on identifying the indication to initiate the engine braking procedure, information relating to a requested amount of engine braking power of the engine; andcausing, by the controller, one or more components of a variable geometry turbocharger (VGT) of the engine to adjust, and a throttle valve of the engine to adjust, based on the information relating to the requested amount of engine braking power of the engine.2. The method of claim 1 , wherein causing the one or more components of the VGT to adjust and the throttle valve to adjust causes the engine braking power of the engine to increase.3. The method of claim 1 , further comprising:determining, after causing the one or more components of the VGT to adjust, that a speed of the VGT satisfies a threshold; andcausing the throttle valve to adjust based on determining that the speed of the VGT satisfies the threshold.4. The method of claim 1 , wherein causing the one or more components of the VGT to adjust comprises:causing at least one adjustable vane of the VGT to adjust from a first vane position to a second vane position.5. The method of claim 1 , wherein causing the throttle valve to adjust comprises:causing the throttle valve to adjust from a first valve position to a ...

INTAKE PASSAGE STRUCTURE FOR TURBOCHARGER-EQUIPPED ENGINE

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

INTAKE PASSAGE STRUCTURE FOR TURBOCHARGER-EQUIPPED ENGINE

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

METHOD AND ENGINE BRAKE SYSTEM TO CONTROL AN ENGINE BRAKE OF A VEHICLE

A method and system to control an engine brake of a vehicle is provided. The vehicle is provided with a combustion engine having cylinders, an exhaust pressure governor (EPG) regulating the air flow out of the cylinders, an intake air throttle valve (ITV) regulating the air flow into the cylinders, pressure sensing means for sensing a pressure downstream of the cylinders, wherein an engine braking torque can be regulated in two different engine braking modes (a, b), a first engine braking mode (a), in which the air flow through the EPG is regulated by a closed loop control using the pressure downstream of the cylinders and the ITV is regulated in a feed forward control dependent of the engine speed and a demanded brake torque; a second engine braking mode (b), in which the EPG is regulated in a feed forward control dependent of the engine speed and the demanded brake torque, and the my regulates the braking torque by a closed loop control using the pressure downstream of the cylinders. 1. Method to control an engine brake of a vehicle , the vehicle is provided with a combustion engine having cylinders , an exhaust pressure governor (EPG) regulating the air flow out of the cylinders , an intake air throttle valve (ITV) regulating the an flow into the cylinders , pressure sensing means for sensing a pressure downstream of the cylinders , wherein an engine braking torque can be regulated in two different engine braking modes (a , b) ,a first engine braking mode (a), in which the air flow through the EPG is regulated by a closed loop control using the pressure downstream of the cylinders and the ITV is regulated in a feed forward control dependent of the engine speed and a demanded brake torque;a second engine braking mode (b), in which the EPG is regulated in a feed forward control dependent of the engine speed and the demanded brake torque, and the ITV regulates the braking torque by a closed loop control using the pressure downstream of the cylinders.2. Method ...

THROTTLE ADJUSTMENT DURING DECELERATION FUEL SHUT OFF

Methods and systems are provided for adjusting a throttle during deceleration fuel shut off (DFSO). In one example, a method may comprise controlling a position of a throttle in an air inlet of an engine propelling a vehicle, in relation to vehicle operator commands, and during a deceleration fuel shut off mode, increasing opening of said throttle independently of said operator commands when speed of said vehicle is or is expected to fall below a desired speed or desired speed trajectory. 1. A method comprising:controlling a position of a throttle, in an air inlet of an engine propelling a vehicle, in relation to vehicle operator commands; andduring a deceleration fuel shut off (DFSO) mode, increasing an opening of said throttle independently of said operator commands when speed of said vehicle is or is expected to fall below a desired speed or desired speed trajectory.2. The method recited in claim 1 , further comprising claim 1 , decreasing said throttle opening if said vehicle speed rises above said desired speed or desired speed trajectory during said deceleration fuel shut off mode.3. The method recited in claim 1 , further comprising increasing opening of said throttle in response to a determination that a temperature of a catalyst coupled to an exhaust of said engine will remain above a threshold during said deceleration fuel shut off mode.4. The method recited in claim 1 , further comprising claim 1 , adjusting the throttle to a closed position when entering DFSO mode claim 1 , and subsequently increasing the opening of the throttle during said DFSO mode.5. The method recited in claim 1 , wherein said engine comprises a four stroke engine and said increasing said throttle opening decreases engine braking and therefore slows a rate of said deceleration to extend operation in said deceleration fuel shut off mode.6. The method recited in claim 1 , wherein the increasing the opening of the throttle is based on a difference between the desired speed of the ...

COOPERATIVE CAM PHASER AND AIR THROTTLE CONTROL

Methods and apparatus relate to air handling for an internal combustion engine system, particularly utilizing premixed air and fuel. The engine system includes an intake air throttle (IAT) having a position set in response to the engine speed and a variable valve timing module having an intake valve timing set in response to the engine load. The variable valve timing module may be a cam phaser having a position at or between full retard and full advance positions. The engine system may operate in a transient mode or a fuel efficiency mode. The IAT position is adjusted in response to an engine speed error value or set at full throttle. The cam phaser position is adjusted in response to a pressure difference across the IAT, the engine speed, or is set to a limit position. 1. A method of air handling for an engine system with premixed air and fuel upstream of at least one engine cylinder , comprising:determining an engine speed and an engine load of the engine system, wherein the engine load is one of an actual engine load and a predicted engine load;setting an intake air throttle (IAT) position in response to the engine speed; andsetting an intake valve timing in response to the engine load.2. The method of claim 1 , further comprising running the engine system with a fuel including at least one of natural gas and gasoline claim 1 , the fuel being premixed with air upstream of the at least one engine cylinder at one of a stoichiometric and a lean burn ratio.3. The method of claim 1 , wherein setting the intake valve timing includes setting at least one of a cam phaser position and an intake valve open duration.4. The method of claim 1 , further comprising determining an engine operating mode for the engine system in response to the engine load claim 1 , wherein the engine operating mode is one of a transient mode and a fuel efficiency mode.5. The method of claim 4 , wherein the transient engine operating mode is determined in response to a partial engine load claim 4 ...

Electronic Fuel Injection Throttle Body Assembly

Present embodiments provide a throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The throttle body may provide improved fuel pathways through and about the throttle body in order to move fuel to opposed side. The throttle bodies may have improved configuration of the fuel injectors. Further, the throttle body may have computer mounted on the throttle body and a notch formed in the throttle body to define a wire routing pathway from the computer to the injectors. 1. An electronic fuel injection throttle body assembly , comprising:a throttle body having an upper inlet and a lower outlet, said throttle body configured to mount to an internal combustion engine;a plurality of bores disposed between said upper inlet and said lower outlet;each of said plurality of bores having a first fuel injector and a second fuel injector disposed above said first fuel injector;a first fuel component cover having a lower fuel passage, an upper fuel passage, and a connecting fuel passage extending between the lower and upper fuel passages, wherein the upper fuel passage is in fluid communication with said second fuel injector and said connecting fuel passage located between the first and second fuel injectors of one bore and the first and second fuel injectors of a second bore;said first fuel component cover providing fuel to two bores of said plurality of bores.2. The electronic fuel injection throttle body assembly of claim 1 , further comprising a second fuel component cover positioned on said throttle body opposite said first fuel component cover.3. The electronic fuel injection throttle body assembly of claim 2 , said second fuel component cover providing fuel to third and fourth bores of said plurality of bores.4. The electronic fuel injection throttle body assembly of further comprising an external fuel conduit extending ...

ACTIVE COMBUSTION AIR INTAKE SYSTEM FOR TRUCK, TRACTOR, OR BUS VEHICLE

A combustion air intake apparatus for a truck, tractor, or bus vehicle for highway use includes an air deflecting element that is selectively deployable to cause dynamic air pressure created by vehicle motion to increase static air, pressure within the intake apparatus under appropriate conditions. Deployment or retraction of the air deflecting element is responsive to at least one of forward speed of the vehicle, air pressure downstream of an air inlet opening, or throttle position, and may further be responsive to detection of precipitation and/or particulate material. An air deflecting element may include a moveable plate or flap, moveable louvers, or a moveable duct. 1. A combustion air intake apparatus for a truck , tractor , or bus vehicle for highway use , the combustion air intake apparatus comprising:a frame defining an air inlet opening in fluid communication with the combustion air intake apparatus;at least one air deflecting element proximate to the frame, wherein the at least one air deflecting element comprises a retracted position and comprises a deployed position in which the at least one air deflecting element is arranged to deflect air into the air inlet opening while the truck, tractor, or bus vehicle is traveling in a forward direction; anda controller operatively coupled with at least one actuator to selectively deploy or retract the at least one air deflecting element, wherein the controller is configured to control deployment or retraction of the at least one air deflecting element responsive to at least one signal indicative of one or more sensed parameters; andwherein the air inlet opening is open to admit ambient air into the combustion air intake apparatus when the at least one air deflecting element is in the deployed position and when the at least one air deflecting element is in the retracted position.2. The combustion air intake apparatus of claim 1 , wherein the controller is configured to control deployment or retraction of the at ...

INTAKE PORT FOR GENERATING HIGH TUMBLE AND SWIRL

Methods and systems are provided for generating tumble in intake air by creating an asymmetrical annulus opening for flowing intake air into a combustion chamber of an engine cylinder. The asymmetrical annulus opening may be created by changing an angle of an intake valve disc of an intake valve. The angle of the intake valve disc may be varied based on engine operating parameters by extending or retracting one or more connect rods coupled to an annulus tumble guide movably housed inside an annulus channel. 1. An intake valve assembly , comprising:a tumble guide movably housed in a channel of a cylinder head directly below a valve seat configured to interface with an intake valve coupled to a combustion chamber; andan actuator configured to move the tumble guide to establish contact with an intake valve disc of the intake valve to change an angle of the intake valve disc.2. The intake valve assembly of claim 1 , wherein the intake valve disc is coupled to a push rod at a movable joint.3. The intake valve assembly of claim 1 , wherein the tumble guide is an annulus tumble guide housed in an annulus channel claim 1 , and further comprising a connect rod coupling the annulus tumble guide to the actuator claim 1 , wherein at a default length of the connect rod claim 1 , the annulus tumble guide is fully housed inside the annulus channel.4. The intake valve assembly of claim 3 , wherein at the default length of the connect rod claim 3 , an opening fluidically connecting an intake port to the combustion chamber directs symmetrical flow of intake air to the combustion chamber.5. The intake valve assembly of claim 3 , wherein at an extended length of the connect rod claim 3 , a first segment of the annulus tumble guide protrudes at least partly out of the annulus channel towards the intake valve disc.6. The intake valve assembly of claim 5 , wherein at the extended length of the connect rod claim 5 , the first segment of the annulus tumble guide comes in contact with the ...

ENGINE SYSTEM

An engine system may include an engine including first and second cylinder banks; a throttle valve; a first exhaust manifold gathering exhaust gas exhausted from the first cylinder bank to be supplied to the first exhaust line; a second exhaust manifold gathering exhaust gas exhausted from the second cylinder bank to be supplied to the second exhaust line; a turbocharger including a turbine rotated by the exhaust gas exhausted through the first exhaust manifold and a compressor rotated in connection with the turbine; a cylinder deactivation (CDA) device selectively deactivating the cylinders of the first cylinder bank; and a supercharger including a motor and an electric compressor operated by the motor. 1. An engine system comprising:an engine including a first cylinder bank and a second cylinder bank, each including a plurality of cylinders generating a driving torque by combustion of a fuel;a throttle valve provided at an intake manifold distributing an intake gas to the cylinders of the first cylinder bank and the second cylinder bank to control an intake amount of the intake gas;a first exhaust manifold gathering exhaust gas exhausted from the cylinders of the first cylinder bank to be supplied to a first exhaust line;a second exhaust manifold gathering the exhaust gas exhausted from the cylinders of the second cylinder bank to be supplied to a second exhaust line;a turbocharger including a turbine rotated by the exhaust gas exhausted through the first exhaust manifold and a compressor rotated in connection with the turbine to compress external air;a cylinder deactivation (CDA) device selectively deactivating the cylinders of the first cylinder bank; anda supercharger including a motor to supply supercharged air to the cylinders and an electric compressor operated by the motor,wherein the exhaust gas exhausted through the second exhaust manifold is exhausted without passing through the turbine.2. The engine system of claim 1 , whereina bypass line bypassing a ...

Internal combustion engine system

An internal combustion engine system includes: a turbosupercharger having a turbo-compressor arranged in a first intake passage; a throttle valve provided on a downstream side relative to the turbo-compressor; a second intake passage that bypasses the turbo-compressor; and an electric supercharger in which a compressor wheel disposed in the second intake passage is driven by an electric motor. When a request to decelerate the internal combustion engine is issued during driving of the compressor wheel by the electric motor, driving of the compressor wheel by the electric motor is stopped before the throttle valve starts a valve closing operation, and the intake bypass valve opens at or after a time at which a valve closing operation of the throttle valve starts.

Synergistic induction and turbocharging in internal combustion engine systems

Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other.

Cover device for motor terminal

A cover device includes a terminal receiving portion and a terminal member while the terminal member is received in the terminal receiving portion. In the terminal member, a third wall connects between one end portion of a first wall, which is directed in an inserting direction of a motor terminal into the terminal receiving portion, and one end portion of a second wall, which is directed in the inserting direction. A length of the third wall, which is measured in a direction directed from a first connection between the first wall and the third wall to a second connection between the second wall and the third wall, is longer than a distance between the first connection and a second inner peripheral surface of the terminal receiving portion and is longer than a length between the second connection and a first inner peripheral surface of the terminal receiving portion.

ELECTRONIC THROTTLE VALVE APPARATUS

An electronic throttle valve apparatus including a suction pressure sensor provided on the upstream of a throttle valve to measure pressure of an intake air that flows into the throttle valve is provided. The electronic throttle valve apparatus includes a throttle housing having one side installed in an intake manifold of an engine. Within an inside of the throttle housing, a throttle valve is rotatably provided. The electronic throttle valve apparatus further includes an air tube fastened to the other side of the throttle housing and fastened to an intake flow line, and a suction pressure sensor provided in the air tube and configured to measure pressure of an intake air that flows through the intake flow line. Accordingly, the suction pressure sensor is provided in the air tube that is fastened to the throttle housing, and thus the pressure of the intake air that flows into the throttle valve is easily measured. 1. An electronic throttle valve apparatus comprising:a throttle housing having one side installed in an intake manifold of an engine;a throttle valve rotatably provided within the throttle housing;an air tube fastened to the other side of the throttle housing and fastened to an intake flow line; anda suction pressure sensor provided in the air tube and configured to measure pressure of an intake air that flows through the intake flow line.2. The electronic throttle valve apparatus of claim 1 , wherein the air tube comprises:a body portion provided in the form of a tube to allow the intake air to flow;a sensor fastening portion that protrudes from an outer periphery of the body portion in a radial direction, and includes a communication aperture formed to communicate with an inside thereof to allow the intake air that passes through the body portion to flow therein, the suction pressure sensor being inserted and fastened into the sensor fastening portion;a plurality of boss portions that protrudes from one side of the body portion toward the throttle ...

Electronic Fuel Injection Throttle Body Assembly

Present embodiments provide an electronic fuel injection throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The bores or barrels of the throttle body may comprise one or more stackable fuel injectors. The fuel component cover may include a regulator with a housing formed integrally with the fuel component cover or alternatively, a regulator may be located remotely. 1. A throttle body assembly , comprising:a body having a horizontally extending axis;a first bore and a second bore extending through said body, said first and second bores located on one side of said axis;a fuel component cover disposed on said one side of said axis;each of said first bore and said second bore having a first fuel injector port with a first fuel injector therein and a second fuel injector port that is capable of being machined to receive a second fuel injector;said first fuel injector port and said second fuel injector port vertically aligned along each of said first and second bores;each of said first fuel injector port and said second fuel injector port having a horizontal alignment direction that is perpendicular to a direction of a throttle shaft.2. The throttle body assembly of claim 1 , further comprising a second fuel injector in said second fuel injector port.3. The throttle body assembly of claim 1 , further comprising an electronic control unit cover disposed opposite the fuel component cover on said body.4. The throttle body assembly of claim 1 , said fuel component cover having a first passage claim 1 , a second passage parallel to said first passage claim 1 , and a vertical connecting passage extending between the first passage and the second passage.5. The throttle body assembly of claim 4 , said first passage providing fuel to one of said first fuel injector port or said second fuel injector port.6. The throttle body ...

METHOD FOR OPERATING A DRIVE DEVICE AND A CORRESPONDING DRIVE DEVICE

A method for operating a drive device with an internal combustion engine and an exhaust gas turbocharger associated with an internal combustion engine. The internal combustion engine is connected to an intake tract provided with a throttle valve. A specified ignition point is determined from a rotational speed of an internal combustion engine. At the same time with a target load jump of the internal combustion engine from an actual torque to a target torque with a full opening of the throttle valve by setting a first target ignition point which is later than the specified ignition point, a target reserve is built up and the actual torque is increased at the same time. The target reserve is used prior to reaching the target torque with the actual torque by setting a second target ignition point which is earlier than the first ignition point, and in addition is used to increase the actual torque. 1. A method for operating a drive device with an internal combustion engine and with a gas exhaust turbocharger associated with the internal combustion engine , comprising:the internal combustion engine is provided with an intake tract connected via a throttle valve, and a specified ignition point is determined from a rotational speed of an internal combustion engine, wherein with a target load jump of the internal combustion engine from an actual torque to a target torque with a complete opening of the throttle valve and with the setting of a first target ignition point that is later than the specified ignition point, a target reserve is built up and the actual torque is increased at the same time, wherein the torque reserve is used prior to reaching the target torque with the actual torque by setting a second target ignition point, which is earlier than the second target ignition point, in order to further increase the actual torque.2. The method according to claim 1 , wherein the first target ignition point is changed over claim 1 , starting from the specified ignition ...

HYBRID VEHICLE

A hybrid vehicle in which an electric storage device can be cooled during propulsion in an electric vehicle mode. In the hybrid vehicle, the battery supplies electricity to a drive motor when the hybrid vehicle is powered by the drive motor in an electric vehicle mode while stopping the engine. The battery is cooled by an intake air flowing through an intake passage of the engine. A detector detects a temperature of the battery, and a controller operates a motor-generator when the temperature of the battery exceeds a first threshold value during propulsion in the electric vehicle mode. 1. A hybrid vehicle comprising:an engine;a drive motor;a cranking device that rotates the engine; andan electric storage device that supplies electricity to the drive motor when the hybrid vehicle is propelled in an electric vehicle mode in which the hybrid vehicle is propelled by a drive force generated by the drive motor while stopping the engine,wherein the electric storage device is cooled by an intake air flowing through an intake passage of the engine,the hybrid vehicle further comprising:a detector that detects a temperature of the electric storage device; anda controller that controls the engine, the drive motor, and the cranking device,wherein the controller is configured to operate the cranking device when the temperature of the electric storage device exceeds a first threshold value during propulsion in the electric vehicle mode.2. The hybrid vehicle as claimed in claim 1 , further comprising:a state of charge level detector that detects a state of charge level of the electric storage device, andwherein the controller is further configured tooperate the cranking device and execute a firing of the engine by supplying fuel to the engine, when the state of charge level of the electric storage device is lower than a second threshold value, andcrank the engine by operating the cranking device while stopping fuel supply to the engine when the state of charge level of the electric ...

Internal Combustion Engine Utilizing Two Independent Flow Paths To A Dedicated Exhaust Gas Recirculation Cylinder

An exhaust gas recirculation (EGR) system and corresponding method for improved combustion efficiency of an internal combustion engine having a number of cylinders, comprising one or more main cylinders connected to an intake manifold and one or more cylinders operable as a dedicated EGR cylinder(s). The dedicated EGR cylinder(s) have two independent intake flow paths for where one flow path provides only intake air and one flow path provides air and recirculated exhaust gas. The exhaust gas output of the one or more dedicated EGR cylinders are connected to an exhaust gas recirculation loop which delivers the exhaust gas output to the main cylinder intake manifold. 1. An exhaust gas recirculation (EGR) system for improved combustion efficiency of an internal combustion engine having a number of cylinders , comprising:one or more main cylinders connected to an intake manifold;one or more cylinders operable as a dedicated EGR cylinder(s), having two independent intake flow paths for said dedicated cylinder(s) where one flow path provides only intake air and one flow path provides air and recirculated exhaust gas, the exhaust gas output of said one or more dedicated EGR cylinders connected to an exhaust gas recirculation loop which delivers said exhaust gas output to said main cylinder intake manifold.2. The exhaust gas recirculation system of wherein said intake manifold includes a pathway for introducing said air and recirculated exhaust gas to said one or more cylinders operable as a dedicated EGR cylinder(s).3. The exhaust gas recirculation system of wherein said flow path providing only intake air to said one or more dedicated EGR cylinder(s) includes an air cooler.4. The exhaust gas recirculation system of wherein said flow path providing only intake air to said one or more dedicated EGR cylinder(s) includes a cylinder throttle.5. The exhaust gas recirculation system of wherein said one or more dedicated EGR cylinder(s) has a single exhaust port which is ...

Synergistic Induction And Turbocharging In Internal Combustion Engine Systems

Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other. 1. An internal combustion engine system comprising: a cylinder having a first intake valve, a second intake valve and an exhaust valve system;', a first throttle operationally affixed to control cylinder combustion air flow through a first intake port and the first intake valve; and', 'a second throttle operationally affixed to control cylinder combustion air flow through a second intake port and the second intake valve; and, 'a throttle mechanism operationally affixed in close proximity to the first and second intake valves, the throttle mechanism comprising, 'a turbocharger system configured to receive exhaust gas from the plurality of cylinder assemblies., 'multiple cylinder assemblies, each cylinder assembly comprising2. The engine system of wherein each cylinder has a cylinder displacement and an intake volume claim 1 , wherein the intake volume for each cylinder is less than or equal to either 80% or 60% of the cylinder displacement claim 1 , the intake volume being equal to the volume between the first throttle and the cylinder's first intake valve plus the volume between the second ...

INTERNAL COMBUSTION ENGINE

An internal combustion engine includes: an intake control valve provided on an upstream side of a fuel injection device provided in an intake flow path and configured to adjust an opening degree thereof while maintaining an intake state through the intake flow path; and a controller configured to perform control to adjust the opening degree of the intake control valve, in which the controller is configured to set the intake control valve to a closing direction side such that a pressure between the intake control valve and an intake valve of a combustion chamber increases during a pre-ignition motor drive period until a fuel is supplied to the combustion chamber and first ignited. 1. An internal combustion engine comprising:an intake control valve provided on an upstream side of a fuel injection device provided in an intake flow path and configured to adjust an opening degree thereof while maintaining an intake state through the intake flow path; anda controller configured to perform control to adjust the opening degree of the intake control valve, whereinthe controller is configured to set the intake control valve to a closing direction side such that a pressure between the intake control valve and an intake valve of a combustion chamber increases during a pre-ignition motor drive period until a fuel is supplied to the combustion chamber and first ignited.2. The internal combustion engine according to claim 1 , whereinthe controller is configured to set the intake control valve to the closing direction side such that the pressure between the intake control valve and the intake valve of the combustion chamber increases during the pre-ignition motor drive period at the time of cold starting.3. The internal combustion engine according to claim 1 , further comprising:a variable valve mechanism configured to adjust an opening and closing timing of the intake valve of the combustion chamber under control of the controller, whereinthe controller is configured to set a ...

ELECTRICALLY CONTROLLED PNEUMATIC SURGE PREVENTION DEVICE AND CONTROL METHOD

An electrically controlled pneumatic surge prevention device includes a controller, an air filter, a turbocharger, an intercooler, a throttle valve, air pipes, an electromagnetic valve connected using signals to the controller, and a surge prevention valve connected to the electromagnetic valve. The surge prevention valve is connected to a sixth air pipe connecting the intercooler and the throttle valve via a fourth air pipe. The electromagnetic valve is arranged at a third air pipe, and the surge prevention valve is connected to a second air pipe connecting the air filter and the turbocharger via the third air pipe. Also provided is a control method of an electrically controlled pneumatic surge prevention device. 1. An electrically controlled pneumatic surge prevention device , comprising a controller , an air filter , a turbocharger , an intercooler , a throttle valve , and air pipes , the air pipes comprising a first air pipe , a second air pipe , a third air pipe , a fourth air pipe , a fifth air pipe , and a sixth air pipe , wherein the electrically controlled pneumatic surge prevention device further comprising an electromagnetic valve in signal with the controller , and a surge prevention valve connected to the electromagnetic valve , wherein the surge prevention valve is connected to the sixth air pipe connecting the intercooler and the throttle valve via the fourth air pipe , the electromagnetic valve is arranged at the third air pipe , and the surge prevention valve is connected to the second air pipe connecting the air filter and the turbocharger via the third air pipe.2. The electrically controlled pneumatic surge prevention device according to claim 1 , wherein the surge prevention valve comprises a housing claim 1 , a first connecting port connected to the fourth air pipe claim 1 , a second connecting port connected to the second air pipe claim 1 , a valve plate connected to the first connecting port claim 1 , a balance pressure chamber and a diaphragm ...

EXHAUST SYSTEM FOR AN ENGINE

A snowmobile including: a frame; an engine supported by the frame; an exhaust pipe connected to the engine; and a turbocharger connected to the exhaust pipe. The turbocharger includes a bypass conduit fluidly communicating with the turbocharger housing and including an exhaust inlet fluidly connected to the exhaust pipe; a valve in the bypass conduit for controlling the flow of exhaust gas, and an exhaust collector. The valve is movable between first and second positions, a first flow path passing through the exhaust inlet, through the bypass conduit, and into the exhaust collector, a second flow path passing through the exhaust inlet, through the bypass conduit, through the exhaust turbine, and into the exhaust collector, in the first position, a majority of the exhaust gas flowing along the first flow path and in the second position, a majority of the exhaust gas flowing along the second flow path. 1. A snowmobile comprising:a frame;at least one ski connected to the frame;an engine supported by the frame, the engine having an engine air inlet and an exhaust outlet;an exhaust pipe fluidly connected to the exhaust outlet of the engine; an exhaust turbine, and', 'a housing the exhaust turbine;, 'a turbocharger fluidly connected to the exhaust pipe, the turbocharger includinga bypass conduit disposed upstream of the housing and fluidly communicating with the housing, the bypass conduit including an exhaust inlet fluidly connected to the exhaust pipe;a valve disposed in the bypass conduit for selectively controlling the flow of exhaust gas through the turbocharger, the valve being selectively movable between at least a first position and a second position; andan exhaust collector fluidly connected to the turbine housing and the bypass conduit for receiving a flow of exhaust gas therefrom,a first exhaust flow path being defined from the exhaust inlet to the exhaust collector, exhaust gas flowing along the first exhaust flow path passing through the exhaust inlet, then ...

SUPERCHARGED ENGINE AND METHOD OF CONTROL

Methods and systems for minimizing the power consumed by a supercharger pump in an engine system. The methods and systems minimize the delta pressure across the pump with a control strategy for positioning the electronic throttle and supercharger bypass valve in a coordinated manner to deliver the required amount of fresh air flow into engine (i.e., the air flow associated with the driver's requested torque), while, at the same time, minimizing the power consumed by the supercharger pump for best fuel economy. 1. A method of controlling an engine system , the system comprising a throttle , a supercharger pump and a supercharger bypass valve connected between an intake manifold and the throttle , said method comprising:determining, by a processor, a desired manifold pressure;setting one of the throttle or the bypass valve to a predetermined position based on the desired manifold pressure and at least one operating parameter of the system; andcontrolling the other of the throttle or the bypass valve to minimize pressure across the supercharger pump.2. The method of claim 1 , wherein the bypass valve is set to a fully open position if the desired manifold pressure is less than a predetermined threshold and the throttle is controlled such that a current manifold pressure approaches the desired manifold pressure.3. The method of claim 2 , wherein the predetermined threshold is a maximum achievable manifold pressure with a fully open bypass valve.4. The method of claim 1 , wherein the throttle is set to a percentage of a fully open position if the desired manifold pressure is greater than a predetermined threshold and less than a maximum achievable manifold pressure with a fully open bypass valve claim 1 , and the bypass valve is controlled such that a current manifold pressure approaches the desired manifold pressure.5. The method of claim 4 , wherein the predetermined threshold is the maximum achievable manifold pressure with a fully open bypass valve offset by a ...

TWO-STROKE INTERNAL COMBUSTION ENGINE

An internal combustion engine (), including a cylinder () with a cylinder wall () defining a combustion chamber (), a piston () reciprocally disposed within the combustion chamber () a crankcase () including a crankshaft () rotatably disposed therein, the piston () being connected to the crankshaft () by a connecting rod (), a first scavenger duct () extending between the combustion chamber () and the crankcase (), the first scavenger duct () including a top port () and a bottom port (), a fuel and air inlet channel () in fluid communication with the crankcase () by way of a piston ported fuel and air inlet port () so that the fuel and air inlet channel () delivers a fuel and air mixture to the crankcase (), and an airhead channel () in fluid communication with the first scavenger duct () by way of a first piston ported air inlet port (), characterized in that the fuel and air inlet channel () is in fluid communication with the airhead channel () so that the fuel and air mixture is combinable with the air flow from the airhead channel (). 2. The internal combustion engine of claim 1 , wherein the piston defines at least one recess that extends radially inward from an outer surface of the piston and provides the fluid communication between the fuel and air inlet channel and the combustion chamber as the piston reciprocates within the cylinder.3. The internal combustion engine of claim 1 , wherein a crossover channel extends between the fuel and air inlet channel and the airhead channel so that the fuel and air inlet channel is in fluid communication with the combustion chamber and the channel delivers the fuel and air mixture to the combustion chamber via the airhead channel.4. The internal combustion engine according to claim 3 , wherein an idle start valve is disposed in the crossover channel claim 3 , the idle start valve being movable between an open position in which the fuel and air inlet channel is in fluid communication with the airhead channel and a closed ...

INTAKE CONTROL APPARATUS

The intake control apparatus () includes a body () which integrally includes intake pipes () and (). The body () includes a linear bypass passage (), which passes through thereinside, one end of which opens upstream of a valve body () of the intake pipe (), and the other end of which opens downstream of the valve body () of the intake pipe (). 1. An intake control apparatus which controls an intake air quantity of an internal combustion engine , the intake control apparatus comprising:a plurality of intake pipes in which intake air introduced into the internal combustion engine passes through;a valve body which is disposed in each of the intake pipes and adjusts the intake air quantity of the intake pipes;a connection portion which connects at least a pair of adjacent intake pipes of the plurality of intake pipes to each other; anda body which integrally includes the plurality of intake pipes and the connection portion, whereinthe body includes a linear bypass passage which passes through inside of the connection portion, one end of which opens to an inner wall surface upstream of the valve body of one intake pipe of the pair of intake pipes and the other end of which opens to an inner wall surface downstream of the valve body of the other intake pipe.2. The intake control apparatus according to claim 1 , comprisinga linear branch passage, one end of which opens to an inner wall surface of the bypass passage and the other end of which opens to an inner wall surface downstream of the valve body of the one intake pipe.3. The intake control apparatus according to claim 2 , whereina cross-sectional area of a passage of the one intake pipe on a plane passing through a point spaced by an arbitrary distance to an upstream side in an extending direction of the one intake pipe from the valve body of the one intake pipe, the plane being orthogonal to the extending direction, is greater than a cross-sectional area of a passage of the other intake pipe on a plane passing ...

ROTARY-TYPE THROTTLING DEVICE FOR INTERNAL COMBUSTION ENGINE

A rotary-type throttling device for an internal combustion engine includes an upstream auxiliary intake passageway formed in a throttle body and having an inlet port held in fluid communication with the atmosphere, and a downstream auxiliary intake passageway formed in a cylindrical valve body of a rotary valve and having an outlet port open at a downstream outer circumferential surface of the cylindrical valve body. The upstream auxiliary intake passageway and the downstream auxiliary intake passageway have a body-side joint fluid communication port and a valve-side joint fluid communication port formed in respective sliding surfaces of the throttle body and the cylindrical valve body and designed to overlap each other to keep the upstream and downstream auxiliary intake passageways and in fluid communication with each other. When the rotary valve is open, a main intake air stream passing through an intake passageway in the rotary valve flows smoothly for enhanced intake performance without being disturbed by an auxiliary intake air stream flowing out of the outlet port of an auxiliary intake passage. 1. A rotary-type throttling device for an internal combustion engine , comprising:a rotary valve including a valve body having a cylindrical body with a longitudinal center axis about which the cylindrical body is swingable between open and closed positions, and an intake hole defined in the cylindrical body and extending perpendicularly across the center axis; anda throttle body having an intake passage defined therein which is held in fluid communication with an intake channel in the internal combustion engine and a cylindrical valve chamber defined therein to extend perpendicularly across the intake passage, the cylindrical valve chamber receiving therein said cylindrical valve body to be rotatable relative to the cylindrical valve chamber;wherein the valve body of the rotary valve is rotatable between an open position in which the intake hole of the rotary valve ...

ENGINE DEVICE

When a load on an engine device is lower than a first predetermined load falling within a low load range, feedback control is performed on a main throttle valve. When the load is higher than the first predetermined load, map control based on a data table is performed on the main throttle valve. When the load is higher than a second predetermined load higher than the first predetermined load, an opening degree of the main throttle valve is brought to a fully-open opening degree, and each of an exhaust bypass valve and an air supply bypass valve is controlled to allow pressure inside an intake manifold to be adjusted to a target value appropriate to the load. 1. An engine device comprising:at least one cylinder;an intake manifold configured to supply air into the at least one cylinder;an exhaust manifold configured to discharge exhaust gas from the at least one cylinder;at least one main fuel injection valve configured to inject liquid fuel into the at least one cylinder to cause combustion of the liquid fuel;at least one gas injector configured to mix gas fuel with the air supplied by the intake manifold;a supercharger comprising a compressor and configured to compress air through a use of the exhaust gas from the exhaust manifold;an intercooler configured to cool compressed air resulting from the compression by the supercharger and supply resultant cooled air to the intake manifold;a main throttle valve disposed at a portion where an outlet of the supercharger and an inlet of the intercooler are coupled to each other;an exhaust bypass flow path configured to couple an outlet of the exhaust manifold to an exhaust outlet of the supercharger;an exhaust bypass valve disposed in the exhaust bypass flow path;an air supply bypass flow path configured to bypass the compressor of the supercharger; andan air supply bypass valve disposed in the air supply bypass flow path,wherein, when a load on the engine device is lower than a first predetermined load falling within a low ...

ENGINE DEVICE

An engine device includes a main throttle valve disposed at a portion where an outlet of a supercharger and an inlet of an intercooler are coupled to each other, an exhaust bypass flow path configured to couple an outlet of an exhaust manifold to an exhaust outlet of the supercharger, an exhaust bypass valve disposed in the exhaust bypass flow path, an air supply bypass flow path configured to bypass a compressor of the supercharger, and an air supply bypass valve disposed in the air supply bypass flow path. Within a low load range of a load on the engine device, when the load is lower than a predetermined load, feedback control is performed on the main throttle valve, and when the load is higher than the predetermined load, map control based on a data table is performed on the main throttle valve. 1. An engine device comprising:at least one cylinder;an intake manifold configured to supply air into the at least one cylinder;an exhaust manifold configured to discharge exhaust gas from the at least one cylinder;at least one main fuel injection valve configured to inject liquid fuel into the at least one cylinder to cause combustion of the liquid fuel;at least one gas injector configured to mix gas fuel with the air supplied by the intake manifold;a supercharger comprising a compressor and configured to compress air through a use of the exhaust gas from the exhaust manifold;an intercooler configured to cool compressed air resulting from the compression by the supercharger and supply resultant cooled air to the intake manifold;a main throttle valve disposed at a portion where an outlet of the supercharger and an inlet of the intercooler are coupled to each other;an exhaust bypass flow path configured to couple an outlet of the exhaust manifold to an exhaust outlet of the supercharger;an exhaust bypass valve disposed in the exhaust bypass flow path;an air supply bypass flow path configured to bypass the compressor of the supercharger; andan air supply bypass valve ...

SYSTEM AND METHOD FOR GASPATH ACTUATORS

Methods and systems for unsticking a stuck gaspath actuator are disclosed. In one embodiment, an engine operating method includes adjusting exhaust valve timing of one or more cylinders of an engine in response to an indication that a gaspath actuator is stuck in position. In this way, pressure waves in an exhaust manifold and/or an intake manifold may be generated, which may act to unstick the gaspath actuator. 1. An engine operating method executable by a controller , comprising:adjusting exhaust valve timing of one or more cylinders of an engine in response to an indication that a gaspath actuator is stuck in position; andresuming a non-adjusted exhaust valve timing after a threshold number of cylinder firings has elapsed and/or after receiving an indication that the gaspath actuator is no longer stuck in position, where the non-adjusted exhaust valve timing is based on current engine operating parameters that do not include whether or not the gaspath actuator is stuck in position.2. The method of claim 1 , wherein the gaspath actuator is an exhaust-side gaspath actuator claim 1 , and wherein adjusting the exhaust valve timing comprises retarding exhaust valve opening timing of the one or more cylinders to generate a pressure wave in an exhaust manifold of the engine.3. The method of claim 2 , wherein retarding the exhaust valve opening timing comprises claim 2 , for a next-firing cylinder following a currently-firing cylinder in an engine firing order claim 2 , opening an exhaust valve of the next-firing cylinder at a timing corresponding to a pressure peak in the exhaust manifold of the engine resulting from combustion in the currently-firing cylinder.4. The method of claim 2 , wherein the exhaust-side gaspath actuator comprises a variable geometry turbine actuator or a wastegate coupled across a turbocharger turbine.5. The method of claim 1 , wherein the gaspath actuator is an intake-side gaspath actuator claim 1 , and wherein adjusting the exhaust valve ...

FUEL AND AIR CHARGE FORMING DEVICE

In at least some implementations, a fuel metering valve, includes a bobbin defining a passage and having one or more voids in the surface of the bobbin that defines the passage, aa wire coil around the bobbin and an armature. The armature is received within the passage in the bobbin and movable relative to the bobbin from a first position to a second position when electricity is supplied to the wire coil. 1. A fuel metering valve , comprising:a bobbin defining a passage and having one or more voids in the surface of the bobbin that defines the passage;a wire coil around the bobbin; andan armature received within the passage in the bobbin and movable relative to the bobbin from a first position to a second position when electricity is supplied to the wire coil.2. The valve of claim 1 , wherein the passage has an axis and the voids are defined by multiple axially extending slots.3. The valve of claim 1 , which also includes a housing that covers the coil and includes an inwardly extending end claim 1 , wherein the bobbin also includes a fuel inlet claim 1 , a fuel outlet and a valve seat between the fuel inlet and the fuel outlet claim 1 , and wherein the inwardly extending end of the housing is open to the fuel inlet so that at least some fuel flowing through the fuel inlet engages the inwardly extending end of the housing.4. The valve of wherein the slots are circumferentially spaced apart.5. The valve of wherein a contact portion engageable by the armature is defined between adjacent voids.6. The valve of wherein at least one of the slots extends along the full axial length of the portion of the passage in which the armature is received.7. The valve of wherein the slots are evenly circumferentially spaced apart.8. A fuel metering valve claim 4 , comprising:a bobbin having an inner surface that defines a passage, the bobbin having a valve seat at one end of the passage, the valve seat having a portion that is radially smaller than a diameter of the passage, and the ...

SYSTEM AND METHOD FOR ENGINE CONTROL

A method for controlling an engine includes the steps of, in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking, and adjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts. 1. A method for controlling an engine , comprising the steps of:in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking; andadjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts.2. The method according to claim 1 , wherein the EGR provided to the intake of the engine is adjusted based on a lowest of the determined first claim 1 , second claim 1 , and third amounts.3. The method according to claim 1 , wherein the EGR provided to the intake of the engine is adjusted to be lower than a lowest of the determined first amount of EGR and the determined third amount of EGR and to be higher than the determined second amount of EGR.4. The method according to claim 3 , wherein:the second amount of EGR is determined based on at least one of designated intake oxygen concentration, one or more turbocharger conditions of the turbocharger, or a magnitude of the transient operating event.5. The method according to claim 4 , wherein:the ...

THROTTLE OPERATING DEVICE

A throttle operating device that adjusts the opening degree of an engine throttle valve is provided. In a throttle operating device according to an aspect of the invention, one end of an inner cable inserted through an outer tube is fixed to a cable fixing part provided in a throttle lever, and the opening degree of the engine throttle valve is adjusted via the inner cable by rotationally operating the throttle lever. The one end of the inner cable is fixed to the cable fixing part with the extending direction of the inner cable changed within the throttle lever. Additionally, a moving mechanism that moves the cable fixing part along a longitudinal direction of the inner cable, is provided in the throttle lever. 1. A throttle operating device that adjusts the opening degree of a throttle valve of an engine , the throttle operating device comprising:a throttle lever that is rotationally operated;a cable fixing part provided in the throttle lever;an inner cable that is inserted through an outer tube, the inner cable having one end fixed to the cable fixing part, and the other end coupled to a valve opening and closing member that opens and closes the throttle valve; anda moving mechanism that is provided in the throttle lever and moves the cable fixing part along a longitudinal direction of the inner cable,wherein the one end of the inner cable is fixed to the cable fixing part with the extending direction of the inner cable changed within the throttle lever.2. The throttle operating device according to claim 1 ,wherein the inner cable is bent at an acute angle within the throttle lever and is changed in direction.3. The throttle operating device according to claim 1 ,wherein the throttle lever has a cable guide part for bending the inner cable and changing the extending direction of the inner cable.4. The throttle operating device according to claim 3 ,wherein the throttle lever has an operating part that is operated by an operator, andwherein the cable guide part is ...

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

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

VEHICLE AND MANUFACTURING METHOD OF VEHICLE

A vehicle comprises an engine, a throttle body including a passage section and a throttle valve, and a throttle valve controller which controls opening or closing of the throttle valve, wherein the throttle valve controller includes: a memory section which contains therein a medium output control command such that the medium output control command continues to be stored in the memory section in a state in which electric power supply to the throttle valve controller is ceased, the medium output control command indicating an opening degree of the throttle valve, corresponding to a preset medium output range, and wherein the throttle valve controller controls opening or closing of the throttle valve, in accordance with the medium output control command read from the memory section, when an engine output meets a medium output condition in which the engine output is controlled to fall into the medium output range. 1. A vehicle comprising:an engine;a throttle body including a passage section formed with an air-intake passage through which air to be supplied to the engine flows, and a throttle valve provided in the air-intake passage; anda throttle valve controller which controls opening or closing of the throttle valve,wherein the throttle valve controller includes:a memory section which contains therein a medium output control command in such a manner that the medium output control command continues to be stored in the memory section in a state in which electric power supply to the throttle valve controller is ceased, the medium output control command indicating an opening degree of the throttle valve, corresponding to a preset medium output range included in a range between a minimum output and a maximum output of an engine output, andwherein the controller controls opening or closing of the throttle valve in accordance with the medium output control command read from the memory section, when the engine output meets a medium output condition in which the engine output ...

ENGINE CONTROL APPARATUS

An engine control apparatus is used with a system equipped with an engine and an engine starter. The engine starter includes an electrical motor, a pinion gear driven by the electrical motor, and a pinion shifter which thrusts the pinion to a location where the pinion is engageable with a ring gear coupled to the engine. The engine control apparatus determines a pulsation parameter which represents a pulsating component of speed of the engine or a value correlating with the pulsating component. The engine control apparatus works to thrust the pinion through the pinion shifter to establish engagement with the ring gear and then rotate the electrical motor to crank the engine. The engine control apparatus alters a cranking terminating time as a function of the pulsation parameter. This minimizes mechanical noise occurring between the pinion gear and the ring gear at the start of the engine. 1. An engine control apparatus for use with a system equipped with an engine and an engine starter , the engine starter including an electrical motor which is electrically energized to produce torque , a pinion gear to which the torque , as produced by the motor , is transmitted , and a pinion shifter which thrusts the pinion to a location where the pinion is engageable with a ring gear coupled with a crankshaft of the engine , comprising:a pulsation determiner which works to determine a pulsation parameter which represents one of a pulsating component contained in a rotational speed of the engine and a value correlating with the pulsating component; anda cranking controller which works to thrust the pinion using the pinion shifter to establish engagement with the ring gear and then rotate the electrical motor to crank the engine, said cranking controller altering a cranking terminating time, the craning terminating time being when a cranking operation of the engine starter to crank the engine is terminated as a function of the pulsation parameter.2. An engine control apparatus as ...

THROTTLE BYPASS TURBINE WITH EXHAUST GAS RECIRCULATION

Various systems and methods are provided for controlling the temperature of outlet gasses from a throttle bypass turbine. In one embodiment, a method of operating a throttle bypass turbine comprises controlling a temperature of outlet gas flowing out of the turbine by routing the outlet gas through an exhaust gas recirculation heat exchanger positioned in an exhaust gas recirculation passage, the turbine coupled to an intake passage. 1. A method of operating a throttle bypass turbine , comprising:routing outlet gas flowing out of the turbine through an exhaust gas recirculation heat exchanger positioned in an exhaust gas recirculation passage, the turbine coupled to an intake passage.2. The method of claim 1 , further comprising:determining one or both of a dew point and an icing point at which condensation and icing respectively form in the intake passage; andadjusting one or more engine operating parameters in response to the determination.3. The method of claim 1 , wherein the one or more engine operating parameters include a flow rate of exhaust gas through the exhaust gas recirculation passage.4. The method of claim 1 , wherein the one or more engine operating parameters include a temperature of a mixture of the outlet gas and intake air in the intake passage.5. The method of claim 4 , wherein the temperature of the mixture is adjusted by adjusting a flow rate of the outlet gas.6. The method of claim 1 , wherein the one or more engine operating parameters include an intake throttle position.7. The method of claim 6 , wherein the intake throttle is configured to modulate gas flow through the intake passage and flow through a throttle bypass in which the turbine is positioned claim 6 , an inlet of the throttle bypass being in fluidic communication with the intake passage claim 6 , an outlet of the throttle bypass being in fluidic communication with the exhaust gas recirculation passage.8. The method of claim 1 , wherein the exhaust gas recirculation heat ...

Throttle Replacing Device

A compressor like unit which can be attached to an internal combustion engine controls the amount of the air mass that passes through its cylinder to the internal combustion engine based on the engine load condition requirement at a given time replacing this way the throttle device function and creating thus a throttle-less internal combustion engine. The compressor can be built in different ways and can function as one or multiple units attached directly to the engine through its crankshaft or a gear box or by other means.

ENGINE CONTROL APPARATUS

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

COMPRESSOR SURGE CONTROL

Systems, methods and apparatus are disclosed for providing or maintaining a target surge margin at the compressor during steady state engine operating conditions and to avoid compressor surge during transients by controlling a compressor recirculation valve position to a commanded position. The estimated surge margin can be determined in response to the measured pressure ratio across the compressor, an estimated compressor flow, and a compressor map for the compressor. 1. A method , comprising:determining a target surge margin at a compressor of a turbocharger of an internal combustion engine, the internal combustion engine including a compressor recirculation valve including a first controllable actuator for controlling a position of the compressor recirculation valve, the turbocharger further including a turbine with a turbine bypass and a wastegate including a second controllable actuator for controlling a position of the wastegate in the turbine bypass;determining a compressor recirculation flow rate correction in response to the target surge margin and a throttle flow rate;determining a first compressor recirculation valve position command for the first controllable actuator based on a closed loop compressor outlet pressure compensation and an open loop compressor recirculation valve position determined to maintain the target surge margin in a steady state;determining a second compressor recirculation valve command for the first controllable actuator based on a compressor flow rate required to avoid surge at a measured compressor outlet pressure and a measured compressor flow rate;selecting one of the first and second compressor recirculation valve position commands; andpositioning the compressor recirculation valve with the first controllable actuator in response to the selected one of the first and second compressor recirculation valve position commands.2. The method of claim 1 , further comprising determining a compressor inlet pressure oscillation and ...

PASSIVE PUMPING FOR RECIRCULATING EXHAUST GAS

An exhaust gas recirculation mixer includes a convergent nozzle in a flow path from an air inlet of the mixer to an outlet of the mixer. The convergent nozzle is oriented converging toward the outlet of the mixer. The nozzle accelerates the flow to high velocity, which is released as a free-jet. The mixer includes an exhaust gas housing having an exhaust gas inlet into an interior of the exhaust gas housing, and a convergent-divergent nozzle having an air-fuel-exhaust gas inlet in fluid communication to receive fluid flow from the convergent nozzle (i.e., the free-jet), the interior of the exhaust gas housing, and a fuel supply into the mixer. 1. An exhaust gas recirculation mixer , the mixer comprising:a convergent nozzle in a flow path from an air inlet of the mixer to an outlet of the mixer, the convergent nozzle converging toward the outlet of the mixer;an exhaust gas housing comprising an exhaust gas inlet into an interior of the exhaust gas housing; anda convergent-divergent nozzle comprising an air-fuel-exhaust gas inlet in fluid communication to receive fluid flow from the convergent nozzle; anda fuel supply into the mixer, the fuel supply comprising a fuel supply tube positioned parallel to and centrally within the air flow path, the fuel supply tube configured to supply fuel into the air flow path upstream of the convergent nozzle.23.-. (canceled)4. The exhaust gas recirculation mixer of claim 1 , where the fuel supply tube comprises a gaseous fuel supply tube.5. The exhaust gas recirculation mixer of claim 1 , where the fuel supply comprises a fuel supply port upstream of the exhaust gas inlet.6. The exhaust gas recirculation mixer of claim 5 , where the fuel supply port comprises a gaseous fuel supply port.7. The exhaust gas recirculation mixer of claim 1 , where the convergent nozzle and the convergent-divergent nozzle are aligned on a same center axis.8. The exhaust gas recirculation mixer of claim 1 , where the exhaust inlet is upstream of an outlet ...

VARIABLE AIR INTAKE APPARATUS REDUCING NOISE

A variable air intake apparatus in accordance with the present invention includes an valve configured to open a through hole formed at a duct body when an engine is driven at a high output to change a path of air introduced into the engine depending on an engine RPM, in which a magnet is mounted on any one of the valve and the duct body and a steel member is mounted on the other one thereof to maintain a state in which the valve closes the through hole, and a buffering member is mounted on any one of the valve and the duct body to prevent generation of hitting sound that is generated when the valve hits the duct body. 1. A noise-reducing variable air intake apparatus , comprising:a duct body having a through hole;a valve having a valve body disposed in the duct body;a magnet mounted on one of the duct body and the valve body;a steel member disposed on the other one of the duct body and the valve body; anda buffering member mounted on one of the valve body and duct body;wherein, when a vehicle is drive at high revolutions per minute, the valve closes so that the valve body blocks the through hole in the duct body, and wherein, when the valve closes, the buffering member prevents generation of sound when the valve body hits the duct body.2. The noise-reducing variable air intake apparatus of claim 1 , wherein the magnet and the buffering member are spaced apart from each other.3. The noise-reducing variable air intake apparatus of claim 1 , wherein the valve body comprises an upper section that closes the through hole in the duct body claim 1 , and wherein the upper section of the valve body is coupled to the duct body allowing the valve to rotate inside the duct body.4. The noise-reducing variable air intake apparatus of claim 3 , wherein the valve body further comprises an inclined section extending from an end of the upper section of the valve body claim 3 , and wherein the duct body further comprises an inclined surface claim 3 , such that when the valve closes ...

PISTON SHROUDING OF SLEEVE VALVE-CONTROLLED PORTS

Features relating to engine efficiency and emissions controls are described. Systems, methods, articles or manufacture and the like can include features relating to integrated muffler and emissions controls for engine exhaust, water-injected internal combustion engine with an asymmetric compression and expansion ratio, controlled combustion durations for HCCI engines, piston shrouding of sleeve valves, low element count bearings, improved ports, and premixing of fuel and exhaust. 1. A method comprising:opening an intake port delivering a fluid comprising air to a combustion chamber of an internal combustion engine for combustion in a current engine cycle, the opening comprising moving a first sleeve valve away from a first closed position;closing an exhaust port through which an exhaust mixture from a prior engine cycle is removed from the combustion chamber, the closing comprising moving a second sleeve valve toward a second closed position, the closing not completing before the opening begins;temporarily shrouding at least part of the intake port of the combustion chamber with a first shrouding feature on a first piston moving within a first circumference of the first sleeve valve and at least part of the exhaust port of the combustion chamber with a second shrouding feature on a second piston moving within a second circumference of the second sleeve valve, the shrouding requiring the fluid to traverse at least part of a diameter of the combustion chamber to exit the combustion chamber prior to the closing being completed.2. The method of claim 1 , wherein the first shrouding feature comprises a first crown of the first piston and the second shrouding feature comprises a second crown of the second piston.3. The method of claim 1 , wherein temporarily shrouding the at least part of the intake port comprises positioning the first shrouding feature such that it at least partially blocks the intake port as the first sleeve valve first opens the intake port.4. The ...

ENGINE BRAKING

A system and method for controlling the quantity of compressed air that may enter into an engine cylinder during the intake stroke of a piston during an engine braking event. A control throttle may be positioned to restrict the quantity of compressed air that may enter into the cylinder during the intake stroke. The control throttle may also be positioned downstream of the engine and configured to adjustably restrict the quantity of exhaust gas that may be delivered to a turbine. By restricting the exhaust gas delivered to the turbine, the power generated by the turbine that is used by the compressor to compress intake air may also be reduced. Moreover, by controlling the power available to the compressor, the quantity of compressed intake air may be controlled, which allows for control of the quantity of compressed air that enters into the cylinder during the compression stroke. 1. A system for controlling the quantity of compressed air that may enter into the cylinder of an engine during the intake stroke of a piston during an engine braking event , the system comprising:a control throttle positioned upstream of the cylinder, the control throttle configured to be adjustably positioned to restrict a quantity of compressed air that may enter into the cylinder during the intake stroke of the piston; andan engine control unit configured to control the position of the control throttle so as to control the quantity of compressed air being restricted by the control throttle.2. The system of claim 1 , further including a variable geometry turbocharger claim 1 , the variable geometry turbocharger including a compressor upstream of the control throttle and a turbine downstream of the engine claim 1 , and further including a vane located at approximately the inlet of the turbine claim 1 , the vane being configured to be adjustable so as to reduce the air flow mass of an exhaust gas from the engine that flows into the turbine during the engine braking event.3. The system of ...

HEAT SHIELDING STRUCTURE FOR INTAKE SYSTEM FOR ENGINE OF MOTORCYCLE

A cylinder of an engine of a motorcycle is tilted frontward. A throttle unit is provided above the cylinder, and a heat shielding sheet is provided between the cylinder and the throttle unit. The throttle unit includes a fuel injection device, and the heat shielding sheet extends between the fuel injection device and the cylinder. 1. A heat shielding structure for an intake system for an engine of a motorcycle in which a cylinder is tilted frontward , the heat shielding structure comprising:a throttle unit provided above the cylinder; anda heat shielding sheet provided between the cylinder and the throttle unit.2. The heat shielding structure as claimed in claim 1 , wherein the throttle unit includes a fuel injection device claim 1 , and the heat shielding sheet extends between the fuel injection device and the cylinder.3. The heat shielding structure as claimed in claim 1 , whereinthe throttle unit includes: a throttle body having a throttle valve therein; a sensor provided to the throttle body; and an intake pipe configured to connect the throttle body and an intake port of the engine, andthe heat shielding sheet is fitted to the intake pipe.4. The heat shielding structure as claimed in claim 3 , further comprising a rotation prevention mechanism configured to prevent the heat shielding sheet from rotating relative to the intake pipe.5. The heat shielding structure as claimed in claim 4 , wherein an electric wire is inserted through the heat shielding sheet.6. The heat shielding structure as claimed in claim 1 , further comprising an air cleaner configured to clean intake air and provided above the cylinder claim 1 , whereina front end portion of the heat shielding sheet is in the vicinity of a lower portion of the air cleaner. This application is based on and claims Convention priority to Japanese patent application No. 2015-200129, filed Oct. 8, 2015, the entire disclosure of which is herein incorporated by reference as a part of this application.(Field of the ...

ENGINE CONTROL APPARATUS

There is provided an engine control apparatus comprising: a vehicle speed detecting unit configured to detect own vehicle speed; an idle stop control unit configured to automatically stop an engine upon a stop condition being met, and restart the engine upon a restart conditions being met during or after completing the automatic engine stop operation, wherein the stop condition includes a condition of a vehicle speed being equal to or less than a first threshold value; a throttle control unit configured to perform a throttle opening increase control for increasing a target opening of throttle opening and keeping it during the automatic engine stop operation; and a determining unit configured to determine the predetermined target opening and the predetermined target period so that at least one of them is increased as the vehicle speed becomes greater. 1. An engine control apparatus comprising:a vehicle speed detecting unit configured to detect own vehicle speed;an idle stop control unit configured to automatically stop an engine upon a stop condition being met, and restart the engine upon a restart condition being met during an automatic engine stop operation or after completing the automatic engine stop operation, wherein the stop condition includes a condition that is to be met when the vehicle speed detected by the vehicle speed detecting unit during the automatic engine stop operation is equal to or less than a first threshold value which is greater than “0”;a throttle control unit configured to perform a throttle opening increase control during the automatic engine stop operation, wherein the throttle opening increase control includes a process for increasing a target opening of throttle opening to a predetermined target opening and then keeping the throttle opening at the target opening for a predetermined target period which is greater than “0”; anda determining unit configured to determine the predetermined target opening and the predetermined target period ...

PRESSURE TAPPING DEVICE AND MOTOR VEHICLE HAVING A PRESSURE TAPPING DEVICE, AND PRESSURE TAPPING METHOD

Methods and systems are provided for a pressure tapping device for a motor vehicle where a portion of the pressure energy generated at the fuel storage reservoir is transmitted to a working medium, physically separate from the fuel via the pressure tapping device. The pressure tapping device is fluidically coupled to a pressure actuator and enables the pressure operation via transmission of the pressure energy and adjustment of valves diverting flow from the fuel storage reservoir to the engine intake through the pressure tapping device. 1. A system , comprising:an internal combustion engine;a fuel storage reservoir connected to the internal combustion engine by a fuel line, fuel stored in the fuel storage reservoir at a storage pressure greater than an ambient pressure; anda pressure tapping device including a fluid-carrying connection to the fuel line and configured to transmit a proportion of pressure energy of the fuel to a working medium, physically separate from the fuel.2. The system as claimed in claim 1 , wherein the pressure tapping device comprises an admission line with an admission line pressure control valve and a discharge line with a discharge line valve.3. The system as claimed in claim 2 , wherein each of the admission line and the discharge line are coupled to the fuel line.4. The system as claimed in claim 3 , wherein the pressure tapping device comprises a pressure transmitter claim 3 , which comprises a first cylinder with a first piston and second cylinder with a second piston having a fluid-carrying connection to the first cylinder claim 3 , wherein a transmission fluid is located between the first piston and the second piston claim 3 , wherein the admission line and the discharge line have a fluid-carrying connection to the first cylinder.5. The system as claimed in claim 4 , wherein a working pressure of the pressure tapping device is measured by a manometer coupled to the admission line pressure control valve.6. The system as claimed in ...

Method and Device for Operating an Internal Combustion Engine

An internal combustion engine has a crankcase and a crankcase ventilation system having a switchable shut-off valve, and sensors that detect different operating parameters of the engine, including a load variable of the engine. An estimated load parameter is determined based on the different detected operating parameters using a dynamic model, and a corrective value of a characteristic value is determined as a function of a deviation between the estimated load variable and the detected load variable. To implement a diagnosis, diagnosis switching cycle(s) are controlled, in which the shut-off valve is set to a closed switched position for a first time and set to an open switched position for a second time. A diagnosis value representative of a shut-off valve being in a correct or incorrect state is determined based on a change to the corrective value in response to the one or the plurality of diagnosis switching cycles.

VEHICLE OPERATION SYSTEM AND METHOD

A method of operating a vehicle having an engine, an engine control unit (ECU), a throttle operator, and a throttle body fluidly communicating with the engine. A throttle valve disposed in the throttle body regulates fluid flow to the engine. A throttle valve actuator is connected thereto for controlling a throttle valve position. A key receiver is configured to link to a key. The method includes linking a key to the key receiver and initiating engine operation. If the key is linked to the key receiver and engine operation has been initiated, an identification code of the key is read and an authorization status of the key is thereby determined. If the key is determined to be authorized, the throttle valve position is controlled based in part on a throttle operator position. If the key is determined to be unauthorized, the throttle valve position is limited to a security limit. 1. A method of operating a vehicle , an engine;', 'an engine control unit (ECU) controlling operation of the engine;', 'a throttle operator operatively connected to the ECU;', 'a throttle body fluidly communicating with the engine;', 'a throttle valve disposed in the throttle body regulating fluid flow to the engine;', 'a throttle valve actuator connected to the throttle valve for controlling a throttle valve position, the throttle valve actuator being in electronic communication with the ECU; and', 'a key receiver configured to link to a key,, 'the vehicle comprising linking a key to the key receiver;', 'initiating engine operation;', reading an identification code of the key and thereby determining an authorization status of the key;', 'if the key is determined to be an authorized key, controlling the throttle valve position based in part on a throttle operator position; and', 'if the key is determined to be an unauthorized key, limiting the throttle valve position to be less than a security limited throttle valve position., 'if the key is linked to the key receiver and engine operation has ...

INTAKE SYSTEM OF INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER

An intake system of an internal combustion engine with a supercharger includes: a negative pressure control valve which is disposed in the upstream side than an intake side supercharger in an intake passage; a first external gas introduction passage which introduces a single external gas made of blow-by gas, at a part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve; and a fresh air introduction passage which introduces fresh air to an internal combustion engine main body from the upstream side of the negative pressure control valve. 1. An intake system of an internal combustion engine with a supercharger comprising:a negative pressure control valve which is disposed in the upstream side than an intake side supercharger in an intake passage;a first external gas introduction passage which introduces a single external gas made of blow-by gas, at a part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve; anda fresh air introduction passage which introduces fresh air to an internal combustion engine main body from the upstream side of the negative pressure control valve.2. The intake system of an internal combustion engine with a supercharger according to claim 1 , further comprising:a second external gas introduction passage which is provided separately from the first external gas introduction passage, and introduces another external gas different from the blow-by gas to the part of the intake passage which is on the upstream side of the intake side supercharger and on the downstream side of the negative pressure control valve.3. The intake system of an internal combustion engine with a supercharger according to claim 1 ,wherein the negative pressure control valve decreases an opening degree to allow a negative pressure to be generated at the part of the intake passage ...

THROTTLE OPERATING DEVICE

A throttle operating device includes a fixing member, a throttle lever, the throttle lever, a magnet which is configured to rotate in response to a rotational operation of the throttle lever, and a detection sensor. A drive source of the vehicle is configured to be controlled based on the rotational operation angle of the throttle lever detected by the detection sensor. A magnetic shielding unit is disposed in the fixing member and configured to cover a periphery of the magnet and the detection sensor to shield magnetism from the outside. 1. A throttle operating device comprising:a fixing member which is fixed to a vicinity of a grip formed at a tip of a handlebar of a vehicle;a throttle lever which is attached and extending from the fixing member, and the throttle lever being configured to be pivoted while the grip is gripped;a magnet which is configured to rotate in response to a rotational operation of the throttle lever; anda detection sensor configured to detect a rotational operation angle of the throttle lever based on a magnetic change of the magnet rotating in response to the throttle lever, wherein:a drive source of the vehicle is configured to be controlled based on the rotational operation angle of the throttle lever detected by the detection sensor; anda magnetic shielding unit is disposed in the fixing member and configured to cover a periphery of the magnet and the detection sensor to shield magnetism from the outside.2. The throttle operating device according to claim 1 , further comprising:an accommodation case formed with a recess portion rotatably accommodating the magnet while the detection sensor is accommodated inside the recess portion, whereinthe magnetic shielding unit is attached to the fixing member in a state of covering the accommodation case.3. The throttle operating device according to claim 2 , wherein a first magnetic shielding unit in which one side is opened and an accommodation space is formed; and', 'a second magnetic shielding ...

CONTROL DEVICE

An object is to provide a control device that calculates an intake pipe pressure of an engine, in which the humidity of air is measured, and a change in a gas constant due to a change in the total number of moles of air is corrected, to improve the accuracy of the calculation value of the intake pipe pressure. 1. A control device that controls an engine provided withan air amount measurement unit that measures an air amount passing through a throttle throttle valve provided in an intake passage of the engine, and a humidity measurement unit that measures a humidity of air passing through the throttle throttle valve, the control device comprising:an air amount calculation unit that calculates an air amount flowing into a cylinder of the engine based on a measurement result of the air amount measurement unit; anda pressure calculation unit that calculates a pressure of the intake manifold on a downstream side of the throttle throttle valve based on the air amount measured by the air amount measurement unit, the air amount calculated by the air amount calculation unit, and the humidity measured by the humidity measurement unit.2. A control device that controls an engine provided with a supercharger provided in an intake passage of the engine , an air amount measurement unit that measures an air amount flowing into the supercharger , and a humidity measurement unit that measures a humidity of air flowing into the supercharger , the control device comprising:an air amount calculation unit that calculates an air amount passing through a throttle throttle valve on a downstream side of the supercharger; anda pressure calculation unit that calculates a pressure between the supercharger and the throttle throttle valve on the downstream side of the supercharger based on the air amount measured by the air amount measurement unit, the air amount calculated by the air amount calculation unit, and the humidity measured by the humidity measurement unit.3. The control device ...

SYSTEM AND METHOD FOR CONTROLLING A VEHICLE

A vehicle is provided including an electronic power steering system, an electronic throttle control system, and a stability control system. 1. A throttle override method for a recreational vehicle , the method including:determining, by a controller of the vehicle, an opening of a throttle valve of an engine of the vehicle;detecting, by the controller, an application of a brake of the vehicle during the opening of the throttle valve; andreducing the opening of the throttle valve in response to an application of the brake exceeding a threshold level.2. The method of claim 1 , wherein the detecting the application of the brake includes detecting at least one of an applied pressure of a brake operator device and a displacement of the brake operator device claim 1 , and wherein the reducing the opening of the throttle valve is in response to the at least one of the applied pressure and the displacement of the brake operator device exceeding the threshold level.3. The method of claim 1 , wherein the reducing the opening of the throttle valve is in response to both the application of the brake exceeding the threshold level and the opening of the throttle valve exceeding a threshold opening.4. The method of claim 3 , wherein the reducing the opening of the throttle valve includes closing the throttle valve to at or below the threshold opening.5. The method of claim 1 , wherein the reducing the opening of the throttle valve includes closing the throttle valve to a zero percent opening.6. The method of claim 1 , wherein the reducing the opening of the throttle valve is in response to both the application of the brake exceeding the threshold level and a displacement of a throttle operator device exceeding a threshold displacement claim 1 , the throttle valve being controlled by the controller based on the position of the throttle operator device.7. The method of claim 1 , wherein the opening of the throttle valve is reduced regardless of an operator demand claim 1 , via a ...

FIXED TEMPERATURE MAINTENANCE SYSTEM FOR ENGINE IN UNMANNED AIRCRAFT HAVING AUTOMATIC THROTTLE LIMITING DEVICE

The present invention relates to a system for maintaining a constant temperature of an engine in an unmanned aerial system with an autothrottle limiting device, the system comprising: an autopilot for issuing a throttle command; an autothrottle limiting device for automatically limiting an upper limit of the throttle command issued by the autopilot ; and a rotary engine for feeding an internal temperature of the engine of the autopilot back to the autothrottle limiting device . Thus, the system is applicable to all the kinds of unmanned aerial systems employing an air-cooling rotary engine (i.e. reciprocating engine), uses the existing autopilot of the unmanned aerial system without modification, improves the reliability and life of the engine, and safely takes the aerial vehicle back without accidents in the engine even though communication with a terrestrial system is interrupted. 1. A system for maintaining a constant temperature of an engine in an unmanned aerial system with an autothrottle limiting device , the system comprising:{'b': '100', 'an autopilot for issuing a throttle command;'}{'b': 200', '100, 'an autothrottle limiting device for automatically limiting an upper limit of the throttle command issued by the autopilot ; and'}{'b': 300', '100', '200, 'a rotary engine for feeding an internal temperature of the engine of the autopilot back to the autothrottle limiting device .'}2200. The system according to claim 1 , wherein the autothrottle limiting device comprises:{'b': 210', '300, 'an engine temperature receiver for continuously receiving an engine internal temperature (i.e. rotor air temperature (RAT)) of the rotary engine ;'}{'b': 280', '100, 'an autothrottle command-value receiver for receiving an autothrottle command-value from the autopilot ;'}{'b': '290', 'an autothrottle limited-value subtraction unit for subtracting an autothrottle limited-value from the autothrottle command value;'}{'b': '270', 'a limited operating-temperature setting and ...

Throttle Valve Apparatus for an Internal Combustion Engine and Motor Cycle Provided therewith

Proposed is a throttle valve apparatus for an internal combustion engine, with a housing and an intake pipe comprising a through-flow cross section and a throttle valve that is pivotable relative to the through-flow cross section, which is actuatable by means of a throttle valve shaft and with an actuating device arranged on the housing, by means of which the throttle valve can be releasably fixed in a cold starting position in which the through-flow cross section is at least partially opened. 1. A throttle valve apparatus for an internal combustion engine comprising:a housing; andan intake pipe, the intake pipe comprising:a through-flow cross section and a throttle valve that is pivotable relative to the through-flow cross section, which is actuatable by means of a throttle valve shaft, characterized by an actuating device arranged on the housing, by means of which the throttle valve is releasably fixable in a cold starting position in which the through-flow cross section is at least partially opened.2. The throttle valve apparatus according to claim 1 , wherein the throttle valve shaft is actuatable in opening direction of the throttle valve by means of at least one control cable and the control cable is arranged operationally connected with a control cable drum arranged in the housing claim 1 , the control cable drum being coupled to the throttle valve shaft.3. The throttle valve apparatus according to claim 1 , wherein the throttle valve shaft is actuatable in closing direction of the throttle valve by means of at least one control cable and the control cable is arranged operationally connected with a control cable drum arranged in the housing claim 1 , the control cable drum being coupled to the throttle valve shaft.4. The throttle valve apparatus according to claim 1 , wherein the actuating device is designed for manual actuation for bringing about the cold starting position of the throttle valve which at least partially opens the through-flow cross section ...

Variable throttle device

A variable throttle device comprises at least two fixed throttle orifices and one switch device. The at least two fixed throttle orifices are connected in series; and the switch device is connected in parallel with at least one of the at least two fixed throttle orifices. In another implementation, a variable throttle device comprises at least two throttle passages and one switch device, each of the at least two throttle passages has at least one fixed throttle orifice or a plurality of fixed throttle orifices connected in series, the at least two throttle passages are connected in parallel, and the switch device is connected in series with at least one of the at least two throttle passages to selectively open or close the at least one throttle passage. The variable throttle device can increase or decrease the throttling resistance to meet the requirements of the valve seating velocity under different operating conditions. 1. A variable throttle device , comprisingat least two fixed throttle orifices and one switch device; whereinthe at least two fixed throttle orifices are connected in series; andthe switch device is connected in parallel with at least one of the at least two fixed throttle orifices, so that the switch device can be selectively closed and opened respectively to maintain and bypass the throttling function of the at least one of the at least two fixed throttle orifices.2. The variable throttle device of any of claim 1 , further comprisinga base body; whereinthe switch device further comprises, within the base body, a first passage, a second passage, a control port and a valve spool;the valve spool has a control-side surface and a switch-side surface;the valve spool is disposed in a space that communicates with the first passage, the second passage and the control port;the switch-side surface of the valve spool is disposed to face toward one of the first passage and the second passage; andthe control-side surface of the valve spool is disposed to face ...

METHOD AND SYSTEM FOR VACUUM GENERATION

Methods and systems are provided for reducing the generation and transmission of objectionable noise from an aspirator to a vehicle cabin during vacuum production. During selected conditions, motive flow through an intake aspirator may cause a hissing noise to be produced at the aspirator, and transmitted through an open check valve in a bypass path between the aspirator and a vacuum reservoir, into a vehicle cabin. During these conditions, an aspirator shut-off valve is closed to reduce motive flow through the aspirator, thereby reducing the hissing noise. 1. A method for an engine , comprising:closing a first valve coupled between a vacuum reservoir and an intake manifold, upstream of an aspirator, responsive to opening of a second valve coupled between the vacuum reservoir and the intake manifold, downstream of the aspirator.2. The method of claim 1 , wherein the first valve is a solenoid-controlled two port valve claim 1 , and wherein the second valve is a mechanical valve enforcing uni-directional flow.3. The method of claim 2 , wherein a throat of the aspirator is coupled to the vacuum reservoir claim 2 , and wherein the vacuum reservoir is coupled to a vacuum consumption device.4. The method of claim 3 , wherein the vacuum consumption device is one or more of a brake booster claim 3 , a wastegate actuator claim 3 , a charge motion control valve claim 3 , and a fuel system canister.5. The method of claim 4 , wherein an indication regarding the opening of the second valve is based on intake manifold vacuum relative to a vacuum level of the vacuum reservoir claim 4 , the indication including indicating that the second valve is open when the intake manifold vacuum exceeds the vacuum reservoir vacuum level by more than a threshold amount.6. The method of claim 4 , wherein an indication regarding the opening of the second valve is based on a rate of vacuum generation at the vacuum reservoir claim 4 , the indication including indicating that the second valve is open ...

ENGINE CONTROL VALVE

An engine control valve includes a flap pivotally mounted on an axis separating the said flap into a first part and a second part that are joined together at an interface plane defining a planar shoulder, the flap being capable of occupying a closed position in order to interrupt the passage of the gases, and for which purpose the first part interacts with a first portion of a joint and the second part interacts with a second portion of this joint, the joint being integral with the internal structure of the valve. A valve is characterized mainly by the first part of the flap has an overhang that arises on the shoulder and extends parallel to the second part of the flap. 1. A valve for the air supply circuit of an internal combustion engine , comprising:a flap pivotally mounted on an axis separating the said flap into a first part and a second part that are joined together at an interface plane defining a planar shoulder,the flap being capable of occupying a closed position in order to interrupt the passage of the gases, and for which purpose the first part interacts with a first portion of a joint and the second part interacts with a second portion of the joint, the joint being integral with the internal structure of the valve,the first part of the flap comprising an overhang that arises on the shoulder and extends parallel to the second part of the said flap.2. The valve as claimed in claim 1 , the overhang extending over the entire width of the flap claim 1 , with a dimension measured along the axis of rotation claim 1 , and the overhang providing a space together with the second part.3. The valve as claimed in claim 1 , wherein the length of the overhang claim 1 , with a dimension measured in a direction perpendicular to the plane of the shoulder claim 1 , permitting an overlap of the said overhang with the second portion of the joint when the flap is in a closed position.4. The valve as claimed in claim 1 , wherein the contact surface between the overhang and ...

SYSTEM AND METHOD FOR CONTROLLING A VEHICLE

A vehicle is provided including an electronic power steering system, an electronic throttle control system, and a stability control system. 1. A method of controlling a vehicle , the method comprising the steps of:detecting, by a controller of the vehicle, a displacement of a suspension system of the vehicle during operation of the vehicle;detecting, by the controller, a speed of at least one ground engaging member of the vehicle;comparing, by the controller, a plurality of detected parameters of the vehicle to at least one threshold identified in a parameter map stored in memory accessible by the controller, the plurality of detected parameters including the detected speed of the at least one ground engaging member and a rate of change of the displacement of the suspension system; andadjusting, by the controller in response to the comparing, at least one of the suspension system, a stabilizer bar coupled to a steering assembly of the vehicle, a moveable mass coupled to the vehicle, and a driveline configuration of the vehicle.2. The method of claim 1 , wherein the adjusting further includes adjusting an application of at least one of a throttle valve opening and a brake of the vehicle.3. The method of claim 1 , wherein the adjusting is in response to a determination by the controller that the rate of change of the displacement of the suspension system exceeds a threshold rate of change claim 1 , the threshold rate of change being variable based on the speed of the at least one ground engaging member.4. The method of claim 1 , wherein the detecting the displacement of the suspension system includes monitoring a ride height of the vehicle.5. The method of claim 1 , wherein the adjusting the suspension system includes adjusting a ride height of the vehicle.6. The method of claim 4 , wherein the adjusting the suspension system is further based on the ride height of the vehicle exceeding a threshold ride height claim 4 , the threshold ride height being variable based on ...

METHODS AND SYSTEMS FOR AIRFLOW CONTROL

Methods and systems are provided for airflow control in an engine system which includes a throttle turbine generator including a turbine and a turbine generator. In one example, a method may include adjusting an angle of a throttle positioned in an engine inlet passage based on a desired airflow by taking into account the effects on the throttle angle due to rotation motion of the turbine, thereby accurately controlling airflow to the engine system. The method may further include predicting an airflow to the engine system based on the position of the throttle, thereby accurately monitoring torque of the engine system. 1. A method for engine airflow control , comprising:feed-forward adjusting an intake throttle coupled to a throttle turbine based on driver torque demand; andfurther adjusting the intake throttle based on each of a first function of a pressure difference across the throttle turbine, and a second, different function of the pressure difference multiplied by turbine speed.2. The method of claim 1 , wherein adjusting the intake throttle and further adjusting the intake throttle includes adjusting a throttle angle of the intake throttle.3. The method of claim 2 , wherein adjusting the intake throttle includes adjusting an effective cross-sectional area of a restriction formed by the intake throttle at an intake pipe.4. The method of claim 2 , further comprising claim 2 , further adjusting the throttle angle based on a difference between the first function of the pressure difference and a third function of the pressure difference claim 2 , the third function of the pressure difference different from each of the first function and the second function.5. The method of claim 4 , wherein the third function is a product of each of the first function claim 4 , the second function and the turbine speed.6. The method of claim 3 , wherein the effective cross-sectional area increases proportional to the third function when the turbine speed is lower than a threshold ...