Ignition timing control system for internal combustion engine
    1.
    发明授权
    Ignition timing control system for internal combustion engine 失效
    内燃机点火正时控制系统

    公开(公告)号:US5070841A

    公开(公告)日:1991-12-10

    申请号:US580679

    申请日:1990-09-11

    IPC分类号: F02D45/00 F02P5/15

    摘要: An ignition timing control system of the vehicle internal combustion engines which conducts ignition timing control retard adjustment during vehicle acceleration so as to eliminate vibration of the vehicle body caused by the sudden change in the engine output. When the vehicle acceleration is detected, the ignition timing is immediately retarded for a period and after the expiration of the period, the retard adjustment is continued so long as the engine speed increases and discontinued when the engine speed turns to decreases. As a result of the repeated ignition timing control, the overall ignition timing characteristics take on a zigzag pattern. The ignition timing is thus controlled to reduce the output torque when the torque tends to rise because the engine speed is rising, while the retard correction is discontinued so as to prevent a decrease in output torque when the engine output torque tends to decline. As such, by deliberately imparting a phase difference to the output, the change in the engine speed is averaged to result smooth rising during acceleration without causing the vibration to the vehicle body.

    摘要翻译: 车辆内燃机的点火正时控制系统,其进行点火正时控制,在车辆加速期间进行延迟调整,以消除由于发动机输出突然变化引起的车身振动。 当检测到车辆加速度时,点火正时立即延迟一段时间,并且在该期间结束之后,只要发动机转速变低,发动机转速增加并停止,继续调节。 作为反复点火正时控制的结果,总点火正时特性呈锯齿状。 因此,由于发动机转速上升,当转矩趋于上升时停止点火正时,同时延迟校正停止,以防止发动机输出转矩下降时输出转矩的降低。 因此,通过故意地向输出赋予相位差,发动机转速的变化被平均,从而在加速期间平滑地上升而不会对车身产生振动。

    Ignition timing control system for internal combustion engines
    2.
    发明授权
    Ignition timing control system for internal combustion engines 失效
    用于内燃机的点火时序控制系统

    公开(公告)号:US5163403A

    公开(公告)日:1992-11-17

    申请号:US812993

    申请日:1991-12-24

    IPC分类号: F02D13/02 F02D43/00 F02P5/15

    摘要: An ignition timing control system for an internal combustion engine in which an ECU sets a basic spark advance value in response to operating condition of the engine, corrects the set basic spark advance value, and delimits the corrected spark advance value in a spark retarding direction by means of a retard limiting value. The ECU further detects operating conditons of a valve timing changing system which changes the valve timing of at least one of an intake valve and an exhaust valve of the engine, and is responsive to the detected operating conditions of the valve timing changing system for changing the retard limiting value, e.g. in such a manner that when low-speed valve timing is selected, the retard limiting value is changed toward an advanced side relative to a value thereof set when high-speed valve timing is selected.

    摘要翻译: 一种用于内燃机的点火正时控制系统,其中ECU根据发动机的运行状态设定基本的火花提前值,校正设定的基本火花提前值,并且通过在火花熄火方向上界定校正的火花提前值, 延迟限制值的手段。 ECU进一步检测改变发动机的进气门和排气门中的至少一个的气门正时的气门正时改变系统的运行状态,并响应于检测到的气门正时改变系统的运行状况, 延迟限制值,例如 以当选择低速气门正时时,延迟限制值相对于选择高速气门正时时设定的值而向前进方向变化。

    Evaporative fuel-processing system for internal combustion engines
    4.
    发明授权
    Evaporative fuel-processing system for internal combustion engines 失效
    内燃机蒸发燃料处理系统

    公开(公告)号:US5690076A

    公开(公告)日:1997-11-25

    申请号:US609748

    申请日:1996-03-01

    IPC分类号: F02M25/08 F02D41/00 F02M37/04

    CPC分类号: F02M25/0809 F02M25/08

    摘要: An evaporative fuel-processing system for an internal combustion engine has an evaporative emission control system. An ECU carries out negative pressurization of the interior of the evaporative emission control system, by opening a purge control valve and closing a vent shut valve, and determines presence/absence of leakage from the evaporative emission control system, based on a rate of decrease in negative pressure within the system, by closing a purge control valve. Before the negative pressurization, the interior of the evaporative emission control system is opened to the atmosphere, and during the open-to-atmosphere, a pressure state within the fuel tank is estimated based on a rate of change in an output from a pressure sensor which senses pressure within the evaporative emission control system. The ECU determines whether the evaporative emission control system is normal, based on the estimated pressure state.

    摘要翻译: 用于内燃机的蒸发燃料处理系统具有蒸发排放控制系统。 ECU通过打开吹扫控制阀并关闭排气关闭阀来执行蒸发排放控制系统内部的负压,并且基于蒸发排放控制系统的减少速率来确定来自蒸发排放控制系统的泄漏的存在/不存在 通过关闭清洗控制阀,系统内的负压。 在负压之前,蒸发排放控制系统的内部向大气开放,并且在开放到大气中,基于来自压力传感器的输出的变化率来估计燃料箱内的压力状态 其感测蒸发排放控制系统内的压力。 基于估计的压力状态,ECU确定蒸发排放控制系统是否正常。

    Fuel injection control system for internal combustion engines
    5.
    发明授权
    Fuel injection control system for internal combustion engines 失效
    内燃机燃油喷射控制系统

    公开(公告)号:US5601064A

    公开(公告)日:1997-02-11

    申请号:US548486

    申请日:1995-10-26

    IPC分类号: F02D45/00 F02D41/04 F02D41/06

    CPC分类号: F02D41/047 F02D41/06

    摘要: A fuel injection control system for an internal combustion engine includes an ECU which carries out adherent fuel-dependent correction by calculating an amount of fuel to be injected into the intake passage such that a sum of a direct supply amount of fuel directly drawn into the combustion chamber of the engine without adhering to the wall surface of the intake passage out of a whole amount of fuel injected into the intake passage, and a carried-off amount of fuel carried off the wall surface of the intake passage into the combustion chamber out of fuel adhering to the wall surface of the intake passage is equal to a required fuel amount for the engine. The starting condition of the engine is detected by sensors, and operation of the adherent fuel-dependent correction control is limited during the starting condition of the engine. The carried-off fuel amount is set to a predetermined value, based on at least one operating parameter of the engine when the engine has shifted from the starting condition to the basic operating condition after starting.

    摘要翻译: 一种用于内燃机的燃料喷射控制系统包括ECU,其通过计算要喷射到进气通道中的燃料量来执行粘附燃料相关校正,使得直接吸入燃烧的燃料的直接供应量的总和 发动机的腔室,而不会从喷射到进气通道中的全部燃料附着到进气通道的壁表面,以及从进气通道的壁表面排出到燃烧室中的排出量不在 附着在进气通道的壁面上的燃料等于发动机所需的燃料量。 发动机的起动条件由传感器检测,并且在发动机的起动状态期间,附着燃料相关的校正控制的操作受到限制。 当发动机从启动状态转移到起动后的基本运行状态时,基于发动机的至少一个运转参数将起动燃料量设定为规定值。

    Device for detecting abnormality of fuel supply system of internal
combustion engines
    6.
    发明授权
    Device for detecting abnormality of fuel supply system of internal combustion engines 失效
    用于检测内燃机燃料供应系统异常的装置

    公开(公告)号:US5579747A

    公开(公告)日:1996-12-03

    申请号:US550098

    申请日:1995-10-30

    摘要: A device for detecting abnormality of the fuel supply system of an internal combustion engine inhibits supply of evaporative fuel to the intake passage when the air-fuel ratio correction coefficient becomes smaller than a predetermined value, and thereafter determines that the fuel supply system is normal when the air-fuel ratio correction coefficient increases above the predetermined value as a result of the inhibition of the supply of the evaporative fuel. The supply of the evaporative fuel to the intake passage is resumed after the determination that the fuel supply system is normal has been made. Determination of abnormality of the fuel supply system is inhibited after resuming of the supply of the evaporative fuel until the engine enters a predetermined operating condition in which the air-fuel ratio correction coefficient has increased. The determination of abnormality of the fuel supply system is permitted to be resumed, based on the air-fuel ratio correction coefficient when the engine has entered the predetermined operating condition.

    摘要翻译: 一种用于检测内燃机的燃料供应系统的异常的装置,当空燃比校正系数变得小于预定值时,禁止向进气通道供应蒸发燃料,然后确定燃料供应系统正常 由于抑制了蒸发燃料的供给,空燃比校正系数增加到高于预定值。 在确定燃料供应系统正常之后,继续向进气通道供应蒸发燃料。 在继续供应蒸发燃料直到发动机进入空燃比校正系数增加的预定操作状态之后,禁止确定燃料供应系统的异常。 基于当发动机已经进入预定操作状态时的空燃比校正系数,允许确定燃料供给系统的异常。

    Evaporative fuel-purging control system for internal combustion engines
    7.
    发明授权
    Evaporative fuel-purging control system for internal combustion engines 失效
    内燃机蒸发式燃油净化控制系统

    公开(公告)号:US5176123A

    公开(公告)日:1993-01-05

    申请号:US876997

    申请日:1992-05-01

    IPC分类号: F02M25/08

    CPC分类号: F02M25/08

    摘要: An evaporative fuel-purging control system for an internal combustion engine, which controls purging of a mixture of evaporative fuel from a fuel tank and air comprises a purge control valve arranged across a purging passage for controlling the flow rate of evaporative fuel from the fuel tank to an intake passage. The flow rate of evaporative fuel is detected and compared with a desired flow rate commensurate with an operating condition of the engine. The valve opening of the purge control valve is controlled in response to results of the comparison. The change rate of the valve opening is varied according to the concentration of evaporative fuel in the mixture. Specifically, the change rate is decreased as the evaporative fuel concentration is higher.

    摘要翻译: 一种用于控制从燃料箱和空气中抽取蒸发燃料的混合物的内燃机的蒸发式燃料清除控制系统包括一个排放在净化通道上的净化控制阀,用于控制来自燃料箱的蒸发燃料的流量 进入通道。 检测蒸发燃料的流量并将其与与发动机的运行状态相称的期望流量进行比较。 根据比较结果控制清洗控制阀的开阀。 阀门开度的变化率根据混合物中蒸发燃料的浓度而变化。 具体地说,随着蒸发燃料浓度的升高,变化率降低。

    Control system for internal combustion engine installed in vehicle with
automatic transmission
    8.
    发明授权
    Control system for internal combustion engine installed in vehicle with automatic transmission 失效
    内燃机控制系统安装在具有自动变速器的车辆中

    公开(公告)号:US5072631A

    公开(公告)日:1991-12-17

    申请号:US580678

    申请日:1990-09-11

    摘要: A control system for internal combustion engine installed in vehicle with automatic transmission which lowers the engine output torque for reducing the shock apt to be felt by the passengers of a vehicle equipped with an automatic transmission at the time of shifting gears. The clutch speed ratio between the transmission input and output shafts is calculated to compare with a first value. If the ratio goes beyond the first value, engine output torque is reduced by a first amount. Then the ratio is compared with a second value and if the ratio comes within the second value, the torque is further reduced by a second amount which is greater than the first amount. The ratio is continuously calculated and is again compared with a third value. When the ratio comes within the value, the torque is restored to the first reduction amount. The ratio is finally compared with the fourth value and if it comes within the value, the torque is fully restored to the initial state. Thus, the gear shift shock is avoided and as a secondary effect, clutch wear is reduced.

    摘要翻译: 一种安装在具有自动变速器的车辆中的用于内燃机的控制系统,其降低发动机输出扭矩,以减少在换档时配备有自动变速器的车辆的乘客易于感觉到的冲击。 计算出变速器输入轴和输出轴之间的离合器速度比与第一个值进行比较。 如果比率超过第一值,则发动机输出扭矩减小第一量。 然后将该比率与第二值进行比较,并且如果该比率在第二值内,则转矩进一步减小大于第一量的第二量。 该比率被连续计算并且再次与第三值进行比较。 当该比值在该值内时,扭矩恢复到第一减小量。 该比值最终与第四值进行比较,如果达到该值,则扭矩完全恢复到初始状态。 因此,避免了换档冲击,并且作为次要效应,减少了离合器磨损。

    Intake air mount control system for internal combustion engines
    9.
    发明授权
    Intake air mount control system for internal combustion engines 失效
    内燃机进气安装控制系统

    公开(公告)号:US5052357A

    公开(公告)日:1991-10-01

    申请号:US578582

    申请日:1990-09-06

    IPC分类号: F02D41/16 F02D31/00 F02D41/24

    摘要: An intake air amount control system for an internal combustion engine includes a control valve for regulating the amount of intake air supplied through the intake pipe to the engine. An ECU determines the difference between a desired idling rotational speed of the engine and an actual rotational speed of same and feedback-controls the control valve by means of a control amount responsive to the determined difference such that the actual rotational speed becomes equal to the desired idling rotational speed. The ECU learns a reference value of the control amount by calculating an average value of values of the control amount applied during the feedback control. The ECU inhibits the learning of the reference value of the control amount when the difference between atmospheric pressure and absolute pressure within the intake pipe is smaller than a predetermined value.

    摘要翻译: 用于内燃机的进气量控制系统包括用于调节通过进气管供给到发动机的进气量的控制阀。 ECU确定发动机的期望怠速转速与其实际转速之间的差异,并且通过响应于所确定的差的控制量反馈控制控制阀,使得实际转速等于期望的 空转转速。 ECU通过计算在反馈控制期间施加的控制量的值的平均值来学习控制量的参考值。 当进气管内的大气压与绝对压力的差小于预定值时,ECU禁止对控制量的参考值的学习。

    Air-fuel ratio feedback control method for internal combustion engines
    10.
    发明授权
    Air-fuel ratio feedback control method for internal combustion engines 失效
    内燃机空燃比反馈控制方法

    公开(公告)号:US4913120A

    公开(公告)日:1990-04-03

    申请号:US321261

    申请日:1989-03-09

    IPC分类号: F02D41/10 F02D41/00 F02D41/14

    CPC分类号: F02D41/1491

    摘要: An air-fuel ratio feedback control method for an internal combustion engine, in which when the engine is operating in a feedback control region, the air-fuel ratio of an air-fuel mixture being supplied to the engine is controlled by the use of a correction coefficient varying in response to the output of an exhaust gas ingredient concentration sensor arranged in the exhaust system of the engine. When the engine has shifted to a predetermined high load region within the feedback control region, in which the rate of change in values of an engine operating parameter is larger than a predetermined value, the air-fuel ratio feedback control is effected by the use of a first average value of the correction coefficient, calculated when the engine is in the predetermined high load region. When the engine has shifted to a second predetermined region within the feedback control region other than the predetermined high load region, the feedback control is effected by the use of a second average value of the correction coefficient, calculated in the second predetermined region, in a manner different from that of calculating the first average value.

    摘要翻译: 一种用于内燃机的空燃比反馈控制方法,其中当发动机在反馈控制区域中操作时,通过使用发动机来控制供给发动机的空气燃料混合物的空燃比 校正系数响应于布置在发动机的排气系统中的排气成分浓度传感器的输出而变化。 当发动机已经转移到反馈控制区域内的预定高负荷区域时,其中发动机运转参数值的变化率大于预定值时,空燃比反馈控制通过使用 当发动机处于预定的高负载区域时计算的校正系数的第一平均值。 当发动机已经转移到除了预定高负载区域之外的反馈控制区域内的第二预定区域时,通过使用在第二预定区域中计算的校正系数的第二平均值,在 方式与计算第一平均值的方式不同。