Fuel supply control method for internal combustion engines immediately
after cranking
    1.
    发明授权
    Fuel supply control method for internal combustion engines immediately after cranking 失效
    起动后马达内燃机的燃油供给控制方法

    公开(公告)号:US4478194A

    公开(公告)日:1984-10-23

    申请号:US524898

    申请日:1983-08-19

    IPC分类号: F02D41/06 F02D41/26 F02D5/02

    摘要: A fuel supply control method for electronically controlling the quantity of fuel being supplied to an internal combustion engine in synchronism with generation of pulses of a predetermined control signal, in response to a fuel increment gradually decreasing in value after termination of cranking of the engine. Immediately when the engine leaves a cranking state, an initial value of the fuel increment is set, which corresponds to a product obtained by multiplying the value of a fuel increasing coefficient decreasing in value as the engine temperature increases by the value of a coefficient being a function of the engine temperature. Subsequently, the thus set initial value of the fuel increment is decreased upon generation of each pulse of the above predetermined control signal until the thus decreased incremental value becomes equal to a value at which no substantial increase takes place in the fuel quantity being supplied to the engine.

    摘要翻译: 一种燃料供给控制方法,用于响应于发动机起动结束后的燃料增量逐渐减小,与预定控制信号的脉冲的产生同步地电子地控制供给内燃机的燃料量。 当发动机处于起动状态时,立即设定燃料增量的初始值,该初始值与通过将发动机温度升高时的值的减小的燃料增加系数的值相乘而获得的乘积相乘 发动机温度的功能。 随后,在产生上述预定控制信号的每个脉冲之后,燃料增量的这样设定的初始值减小,直到如此减小的增量值等于在供给至燃料的燃料量中不大幅增加的值 发动机。

    Fuel injection control system for engine
    2.
    发明授权
    Fuel injection control system for engine 失效
    发动机燃油喷射控制系统

    公开(公告)号:US4814992A

    公开(公告)日:1989-03-21

    申请号:US922019

    申请日:1986-10-21

    摘要: A fuel injection control system for an engine having a plurality of cylinders includes a plurality of driver units for actuating fuel injection valves on the respective cylinders, a processing unit for starting processing operation in synchronism with a cycle of operation of the cylinders when the engine is in a normal operation mode, to compute times for which the fuel injection valves are to be opened based on an engine operating condition in the normal operation mode and to issue processed data, and for starting processing operation out of synchronism with the cycle of operation when the engine is in a particular operation mode, to compute times for which the fuel injection valves are to be opened based on an engine operating condition in the particular operation mode and to issue processed data, and a plurality of counters for successively opening the fuel injection valves through the driver units based on the processed data set in the counters and corresponding to the computed times from the processing means when the engine is in the normal operation mode. The fuel injection control system also includes a counter operation discriminating unit for detecting those counters which are not in operation when the engine is in the particular operation mode and generating a discrimination singal, and a processed data assigning unit responsive to the discrimination signal for assigning the processed data computed in the particular operation mode to those counters which are not in operation.

    摘要翻译: 一种用于具有多个气缸的发动机的燃料喷射控制系统,包括用于致动各个气缸上的燃料喷射阀的多个驱动单元,用于在发动机起动时与气缸的操作周期同步地开始处理操作的处理单元 在正常运行模式下,根据正常运行模式下的发动机运转状态计算出燃料喷射阀打开的时间,并发出处理后的数据,并且与运转循环同步地开始处理动作, 发动机处于特定的运行模式,根据特定运行模式下的发动机运转状态计算出燃料喷射阀的打开时间,并发出处理后的数据;以及多个计数器,用于依次打开燃料喷射 根据在计数器中设置的处理后的数据对应于计算出的时间,阀门通过驱动单元 当发动机处于正常运行模式时,从处理装置输出。 燃料喷射控制系统还包括一个计数器操作鉴别单元,用于检测在发动机处于特定操作模式时不工作并产生鉴别信号的那些计数器,以及处理数据分配单元,响应于判别信号, 在特定操作模式下计算的处理数据到那些未运行的计数器。