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    Control method
    1.
    发明申请
    Control method 失效
    控制方法

    公开(公告)号：US20020117150A1

    公开(公告)日：2002-08-29

    申请号：US10079672

    申请日：2002-02-20

    发明人： Martin A.P. Sykes

    IPC分类号： F02M001/00

    CPC分类号： F02D41/3845 ,  F02D31/001 ,  F02D41/222 ,  F02D2041/223 ,  F02M41/1427 ,  F02M63/0225 ,  F02M2041/1444 ,  F02M2041/145 ,  F02M2041/1483 ,  F02M2041/1488

    摘要： A method of controlling the operation of an engine fuel system including at least one fuel injector, a high pressure fuel pump for delivering fuel to the injector and a pressure sensor arranged to provide an output signal indicative of the pressure of fuel delivered to the injector, comprises the steps of controlling the rate of flow of fuel delivered from the pump to the injector by means of a metering valve arrangement supplied with a control current, measuring the speed of the engine and monitoring the status of the pressure sensor so as to determine whether a fault condition has occurred within the sensor. In the event that a fault condition has occurred in the pressure sensor, the control current supplied to the metering valve arrangement is varied in response to the measured engine speed signal so as to maintain operation of the engine at a substantially constant, predetermined engine speed. The invention also relates a fuel system for implementing the control method.

    摘要翻译： 一种控制发动机燃料系统的操作的方法，该发动机燃料系统包括至少一个燃料喷射器，用于将燃料输送到喷射器的高压燃料泵和布置成提供指示输送到喷射器的燃料的压力的输出信号的压力传感器， 包括以下步骤：通过提供有控制电流的计量阀装置来控制从泵输送到喷射器的燃料的流量，测量发动机的速度并监测压力传感器的状态，以便确定是否 在传感器内发生故障。 在压力传感器发生故障状态的情况下，响应于所测量的发动机转速信号而改变供给到计量阀装置的控制电流，以便将发动机的运行保持在基本恒定的预定发动机转速。 本发明还涉及一种用于实现控制方法的燃料系统。

    Control method
    2.
    发明授权
    Control method 失效

    公开(公告)号：US06578555B2

    公开(公告)日：2003-06-17

    申请号：US10079672

    申请日：2002-02-20

    申请人： Martin A P Sykes

    发明人： Martin A P Sykes

    IPC分类号： F02M500

    CPC分类号： F02D41/3845 ,  F02D31/001 ,  F02D41/222 ,  F02D2041/223 ,  F02M41/1427 ,  F02M63/0225 ,  F02M2041/1444 ,  F02M2041/145 ,  F02M2041/1483 ,  F02M2041/1488

    摘要： A method of controlling the operation of an engine fuel system including at least one fuel injector, a high pressure fuel pump for delivering fuel to the injector and a pressure sensor arranged to provide an output signal indicative of the pressure of fuel delivered to the injector, comprises the steps of controlling the rate of flow of fuel delivered from the pump to the injector by means of a metering valve arrangement supplied with a control current, measuring the speed of the engine and monitoring the status of the pressure sensor so as to determine whether a fault condition has occurred within the sensor. In the event that a fault condition has occurred in the pressure sensor, the control current supplied to the metering valve arrangement is varied in response to the measured engine speed signal so as to maintain operation of the engine at a substantially constant, predetermined engine speed. The invention also relates a fuel system for implementing the control method.