Apparatus and method for controlling valve timing of an engine
    85.
    发明授权
    Apparatus and method for controlling valve timing of an engine 有权
    用于控制发动机气门正时的装置和方法

    公开(公告)号:US06505585B1

    公开(公告)日:2003-01-14

    申请号:US09570464

    申请日:2000-05-12

    Abstract: In a vane type valve timing control apparatus, when an amplitude of a rotation phase of a cam shaft with respect to a crank shaft is above a predetermined value, a target value for the rotation phase is forcibly changed to a maximum advance angle and a maximum delay angle, so that oil of an advance angle side hydraulic chamber and a delay angle side hydraulic chamber is discharged together with air.

    Abstract translation: 在叶片式气门正时控制装置中,当凸轮轴相对于曲轴的旋转相位的振幅高于预定值时,旋转相位的目标值被强制地改变为最大提前角和最大值 延迟角度,使得提前角侧液压室和延迟角侧液压室的油与空气一起排出。

    Diagnosing apparatus and method for RAM
    86.
    发明授权
    Diagnosing apparatus and method for RAM 失效
    用于RAM的诊断装置和方法

    公开(公告)号:US06490697B1

    公开(公告)日:2002-12-03

    申请号:US09384403

    申请日:1999-08-27

    CPC classification number: G11C29/74 G11C29/44

    Abstract: The present invention enables reliable shift to a fail-safe processing upon detection of failure by RAM diagnosis. To this end, the diagnosis result of the RAM diagnosis is doubly stored, as flags, into mutually different two addresses of the RAM; and a fail-safe processing is conducted based on the doubly stored diagnosis result flags when at least one of the flags indicates existence of failure. Otherwise, the diagnosis result of the RAM diagnosis is stored, as a flag, into a predetermined register; and a fail-safe processing is conduced based on the diagnosis result flag stored in the register such that the fail-safe processing is conducted when the flag indicates existence of failure.

    Abstract translation: 本发明能够通过RAM诊断检测到故障而可靠地转移到故障安全处理。 为此,将RAM诊断的诊断结果作为标志双重存储到RAM的相互不同的两个地址中; 并且当至少一个标志指示存在故障时,基于双重存储的诊断结果标志进行故障保护处理。 否则,将RAM诊断的诊断结果作为标志存储到预定的寄存器中; 并且基于存储在寄存器中的诊断结果标志进行故障保护处理,使得当标志指示存在故障时进行故障保护处理。

    Method and apparatus for fail-safe controlling internal combustion engine with electronic controlled throttle system
    87.
    发明授权
    Method and apparatus for fail-safe controlling internal combustion engine with electronic controlled throttle system 有权
    具有电子控制节气门系统的内燃机故障安全控制方法和装置

    公开(公告)号:US06450145B2

    公开(公告)日:2002-09-17

    申请号:US09903761

    申请日:2001-07-13

    CPC classification number: F02D11/107 F02D11/106 F02D2400/08

    Abstract: The apparatus comprises two accelerator position sensors and two throttle position sensors, and when one out of said two accelerator position sensors or said two throttle position sensors fails to operate, a limitation is added to the increase in accelerator position for the output characteristics of the accelerator position sensor. Thereby, the vehicle is enabled to travel at a minimum speed necessary without excessively increasing the engine output. When one of the two throttle position sensors fails to operate, the fuel injection quantity may be set based on the detection value of the accelerator position, which enables the vehicle to be driven by approximately the desired speed without excessively increasing the engine output.

    Abstract translation: 该装置包括两个加速器位置传感器和两个节气门位置传感器,并且当所述两个加速器位置传感器或所述两个节气门位置传感器中的一个不能操作时,对于加速器的输出特性的加速器位置的增加增加了限制 位置传感器 由此,车辆能够以所需的最小速度行驶,而不会过度增加发动机输出。 当两个节气门位置传感器中的一个无法操作时,可以基于加速器位置的检测值来设置燃料喷射量,这使得能够以大致所需的速度驱动车辆,而不会过大地增加发动机输出。

    Vane-type variable valve timing control apparatus and control method
    88.
    发明授权
    Vane-type variable valve timing control apparatus and control method 有权
    叶片式可变气门正时控制装置及控制方法

    公开(公告)号:US06332438B1

    公开(公告)日:2001-12-25

    申请号:US09678810

    申请日:2000-10-04

    Inventor: Kenichi Machida

    CPC classification number: F01L1/3442 F01L2001/34483

    Abstract: A vane-type variable valve timing control apparatus, wherein in a feedback control for bringing a rotation phase between a crank shaft and a cam shaft into agreement with a target value, a feedback gain is changed over according to a target rotation phase and a direction in which the rotation phase is changed.

    Abstract translation: 一种叶片式可变气门正时控制装置,其特征在于,在使曲柄轴和凸轮轴之间的旋转相位与目标值一致的反馈控制中,反馈增益根据目标旋转相位和方向 其中旋转相位改变。

    Method and apparatus for fail safe control of an electronically controlled throttle valve of an internal combustion engine
    89.
    发明授权
    Method and apparatus for fail safe control of an electronically controlled throttle valve of an internal combustion engine 有权
    内燃机电控节流阀的故障安全控制方法和装置

    公开(公告)号:US06209518B1

    公开(公告)日:2001-04-03

    申请号:US09366205

    申请日:1999-08-04

    CPC classification number: F02D11/107 F02D2041/227

    Abstract: In a method and apparatus for fail-safe controlling an electronically-controlled throttle-type internal combustion engine, provision is made of two accelerator position sensors and two throttle position sensors. When either one of the two accelerator position sensors or either one of the two throttle position sensors fails to operate, a low-speed fail-safe operation of a minimum compensation, that is, an operation for maintaining a minimum output required for limp-home control operation of the engine, is executed and, then, a first fail-safe control operation is executed for controlling the position of the throttle valve using a value detected by the remaining sensor. Therefore, the throttle valve is not unintentionally opened, and the operation can be smoothly shifted to the first fail-safe control operation. When the operation for decelerating the engine is detected by a sensor of a system separate from the above-mentioned sensors, the first fail-safe control operation is interrupted and, instead, a second fail-safe control operation is executed for holding the throttle valve at a predetermined position in order to assure the low-speed fail-safe operation of the minimum compensation.

    Abstract translation: 在用于故障安全控制电控节气门式内燃机的方法和装置中,提供两个加速器位置传感器和两个节气门位置传感器。 当两个加速器位置传感器中的任一个或两个节气门位置传感器中的任何一个不能操作时,最低补偿的低速故障安全操作,即用于维持跛行所需的最小输出的操作 执行发动机的控制操作,然后执行第一故障保护控制操作,以使用由剩余传感器检测的值来控制节气门的位置。 因此,节气门不会被无意地打开,并且可以将操作顺利地转移到第一故障保护控制操作。 当通过与上述传感器分离的系统的传感器检测到用于减速发动机的操作时,第一故障保护控制操作被中断,而是执行第二故障保护控制操作以保持节气门 在预定位置,以便确保最小补偿的低速故障安全操作。

    Engine control apparatus
    90.
    发明授权
    Engine control apparatus 失效
    发动机控制装置

    公开(公告)号:US5735244A

    公开(公告)日:1998-04-07

    申请号:US795177

    申请日:1997-02-04

    Abstract: With engine control apparatus for controlling a throttle opening and fuel injection quantity in order to realize a target engine torque according to the present invention, in the case where a target air-fuel ratio is changed in accordance with a change in the target engine torque, erroneous control of the fuel injection quantity is prevented. To achieve this, a target fuel quantity and a target air-fuel ratio are set based on the target engine torque, and a target air quantity is computed from the target fuel quantity and the target air fuel ratio. A target throttle opening is then computed based on the target air quantity, to control an electrically controlled throttle valve. Meanwhile, an actual air quantity detected by an air flow meter is smoothed, and a cylinder charge air quantity computed. The target air-fuel ratio is then corrected using a ratio of the cylinder charge air quantity to the target air quantity. A target fuel injection quantity is then computed from the cylinder charge air quantity and a post correction target air-fuel ratio, to control a fuel injector.

    Abstract translation: 为了实现根据本发明的目标发动机转矩,用于控制节气门开度和燃料喷射量的发动机控制装置,在目标空燃比根据目标发动机转矩的变化而变化的情况下, 防止燃料喷射量的错误控制。 为此,基于目标发动机转矩设定目标燃料量和目标空燃比,根据目标燃料量和目标空燃比计算出目标空气量。 然后基于目标空气量计算目标节气门开度,以控制电控节流阀。 同时,由空气流量计检测到的实际空气量被平滑化,并且计算出气缸增压空气量。 然后使用气缸增压空气量与目标空气量的比率校正目标空燃比。 然后根据气缸增压空气量和后校正目标空燃比计算目标燃料喷射量,以控制燃料喷射器。

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