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    Method and system for reducing engine spark knock during a rapid transient
    1.
    发明授权
    Method and system for reducing engine spark knock during a rapid transient 失效
    在快速瞬变期间减少发动机火花爆震的方法和系统

    公开(公告)号：US5445127A

    公开(公告)日：1995-08-29

    申请号：US299135

    申请日：1994-08-31

    申请人： Michael J. Cullen ,  Joseph N. Ulrey ,  Michael R. Giangrande ,  Patrick J. Eggers

    发明人： Michael J. Cullen ,  Joseph N. Ulrey ,  Michael R. Giangrande ,  Patrick J. Eggers

    IPC分类号： F02P5/152 ,  F02P5/14

    CPC分类号： F02P5/1521 ,  Y02T10/46

    摘要： A method and system is provided for reducing engine spark knock during rapid transient operating conditions. The method includes the step of determining, at periodic intervals, an estimate of airflow into a combustion chamber. The method also includes the step of determining, at periodic intervals, whether rapid transient operating conditions exist. If such conditions exist, an estimated spark advance is determined based on the estimated airflow. Finally, a spark is fired in the combustion chamber based on the estimated spark advance parameter.

    摘要翻译： 提供了一种在快速瞬态运行条件下减少发动机火花爆震的方法和系统。 该方法包括以周期性间隔确定进入燃烧室的气流的估计的步骤。 该方法还包括以周期性间隔确定是否存在快速瞬态操作条件的步骤。 如果存在这种情况，则基于估计的气流来确定估计的火花提前。 最后，基于估计的火花提前参数在燃烧室内发射火花。

    Exhaust gas recirculation system with improved altitude compensation
    4.
    发明授权
    Exhaust gas recirculation system with improved altitude compensation 失效
    废气再循环系统具有改进的高度补偿

    公开(公告)号：US5515833A

    公开(公告)日：1996-05-14

    申请号：US359177

    申请日：1994-12-19

    申请人： Michael J. Cullen ,  Richard L. Wanat ,  Joseph N. Ulrey

    发明人： Michael J. Cullen ,  Richard L. Wanat ,  Joseph N. Ulrey

    IPC分类号： F02D21/08 ,  F02D41/00 ,  F02M25/07

    CPC分类号： F02D41/005 ,  F02M26/57 ,  F02M26/47 ,  Y02T10/47

    摘要： An internal combustion engine includes an exhaust gas recirculation (EGR) mechanism for transporting a controlled amount of exhaust gas generated by the engine from the exhaust manifold to an intake manifold of the engine. An electronic engine controller (EEC) controls the EGR rate by determining a base EGR rate as a function of a plurality of engine operating parameters and a blending value which increases the base EGR rate over a predetermined period of time. A maximum EGR rate value is then determined as a function of a value indicative of the ratio of current air charge drawn into an intake manifold of the engine to the peak aircharge available to the engine at wide-open throttle and at the current rotational speed of the engine and the ambient barometric. The base EGR rate is then compared against the maximum EGR rate value and the EGR rate is determined as a function of the lesser of the two values.

    摘要翻译： 内燃机包括排气再循环（EGR）机构，用于将由发动机产生的受控量的废气从排气歧管传送到发动机的进气歧管。 电子发动机控制器（EEC）通过确定作为多个发动机运转参数的函数的基本EGR率和在预定时间段内增加基本EGR率的混合值来控制EGR率。 然后，确定最大EGR率值作为指示吸入发动机的进气歧管中的当前空气电荷与在大开度节气门下可用于发动机的峰值空气充气量的比率的值的函数，并且以当前转速 发动机和环境气压。 然后将基本EGR率与最大EGR率值比较，并且将EGR率确定为两个值中较小者的函数。

    Method and apparatus for controlling engine torque
    5.
    发明授权
    Method and apparatus for controlling engine torque 失效
    用于控制发动机转矩的方法和装置

    公开(公告)号：US5479898A

    公开(公告)日：1996-01-02

    申请号：US270963

    申请日：1994-07-05

    申请人： Michael J. Cullen ,  Louis R. Christensen ,  Peter J. Grutter ,  Michael A. Weyburne ,  Joseph N. Ulrey ,  David G. Farmer

    发明人： Michael J. Cullen ,  Louis R. Christensen ,  Peter J. Grutter ,  Michael A. Weyburne ,  Joseph N. Ulrey ,  David G. Farmer

    IPC分类号： F02D37/02 ,  F02D41/00 ,  F02D41/36 ,  F02P5/04 ,  F02P5/15

    CPC分类号： F02P5/1504 ,  F02D37/02 ,  F02D41/0087 ,  F02P5/045 ,  F02D2250/18 ,  Y02T10/46

    摘要： A method for reducing the engine torque being produced by an internal combustion engine to a desired engine torque through coordinated control of spark retard, cylinder cut-out and air/fuel scheduling. The method is for use with a vehicle including a multi-cylinder internal combustion engine capable of generating torque, each cylinder having an associated fuel injector for providing fuel to the cylinder and an associated spark timing control for providing a spark for combustion of the fuel with fresh air during engine operation. The method includes identifying the desired engine torque to which the engine torque being produced is to be reduced, and determining a first torque reduction to be achieved by defueling at least one of the engine cylinders. The method also includes determining a second torque reduction to be achieved by lean air/fuel scheduling, the second torque reduction being adjusted for the number of cylinders defueled, and determining a third torque reduction to be achieved by spark retardation, the third torque reduction being adjusted for the number of cylinders defueled and for the lean air/fuel scheduling.

    摘要翻译： 一种通过协调控制火花熄灭，气缸切断和空气/燃料调度，将由内燃机产生的发动机扭矩降低到期望的发动机转矩的方法。 该方法用于包括能够产生扭矩的多缸内燃机的车辆，每个气缸具有用于向气缸提供燃料的相关燃料喷射器和用于为燃料燃烧提供火花的相关火花正时控制， 发动机运行时的新鲜空气。 所述方法包括识别要减小所产生的发动机扭矩的期望的发动机扭矩，以及确定通过排放至少一个发动机气缸来实现的第一转矩降低。 该方法还包括确定通过稀薄空气/燃料调度来实现的第二扭矩降低，针对被排出的气缸数量调节第二扭矩减小，以及确定通过火花放电实现的第三扭矩降低，第三扭矩降低 根据排出的气瓶数量和稀薄空气/燃料调度进行调整。

    Electronic controller for accurately controlling transient operation of a physical system
    7.
    发明授权
    Electronic controller for accurately controlling transient operation of a physical system 失效
    用于精确控制物理系统瞬态运行的电子控制器

    公开(公告)号：US5526794A

    公开(公告)日：1996-06-18

    申请号：US215548

    申请日：1994-03-22

    申请人： Isis A. Messih ,  Frederick A. Page ,  Joseph N. Ulrey

    发明人： Isis A. Messih ,  Frederick A. Page ,  Joseph N. Ulrey

    IPC分类号： F02D45/00 ,  F02D41/04 ,  F02D41/10 ,  F02D41/12

    CPC分类号： F02D41/045 ,  F02D41/047 ,  F02D41/107 ,  F02D2200/021

    摘要： An electronic engine controller (EEC) controls the delivery of fuel to an internal combustion engine via one or more fuel injectors by executing a background routine to measure a plurality of system conditions including airflow and engine temperature. A response value is generated as a function of an aircharge value, the temperature value and a valve effect value. The EEC detects an interrupt which occurs prior to combustion of an air/fuel mixture within each combustion chamber of said engine, and in response to the interrupt execution of the background routine is halted and a foreground routine is executed in which the airflow is measured, an updated aircharge value is generated and the response value is updated as a function of the difference in aircharge values and a predetermined response alteration value. The aircharge value is replaced with the updated aircharge value. A base fuel injector signal, generated by known methods, is modified by the response value, and execution of the background routine is restarted upon completion of the foreground routine.

    摘要翻译： 电子发动机控制器（EEC）通过执行背景程序来控制经由一个或多个燃料喷射器将燃料输送到内燃机，以测量包括气流和发动机温度在内的多个系统条件。 作为空气充电值，温度值和阀效应值的函数产生响应值。 EEC检测到在发动机的每个燃烧室内的空气/燃料混合物燃烧之前发生的中断，并且响应于后台程序的中断执行被停止，并且执行其中测量气流的前景程序， 产生更新的空气充电值，并且响应值被更新为空气充电值和预定响应改变值的差的函数。 空气充电值被更新的空气充电值替换。 通过已知方法产生的基本燃料喷射器信号由响应值修改，并且在前景程序完成时重新启动后台例程的执行。