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    • 3. 发明授权
    • Fuel injection control system for internal combustion engine
    • 内燃机燃油喷射控制系统
    • US4719572A
    • 1988-01-12
    • US758848
    • 1985-07-26
    • Yuuji Kishimoto
    • Yuuji Kishimoto
    • F02D41/34F02D41/32F02M51/00
    • F02D41/32
    • A fuel injection control system for an internal combustion engine in which the amount of fuel injected per input stroke of the engine is precisely controlled so that a predetermined constant air-to-fuel ratio is maintained at all times. A fuel flow arithmetic unit, operating from inputs supplied from a sensor which detects the pressure in the intake manifold of the engine, calculates a fuel flow amount per intake stroke. The output of the fuel flow arithmetic unit is applied as an address input to a memory in which are prestored values of driving times for each value supplied from the fuel flow arithmetic unit. The driving times are calculated taking into account the non-zero opening and closing times of the fuel injection valves, thereby eliminating nonlinearities in the fuel flow amount driving time characteristics. A driving signal generating circuit drives (opens) the fuel injection valves for times indicated by the driving times outputted by the memory.
    • 一种用于内燃机的燃料喷射控制系统,其中精确地控制发动机的每个输入行程喷射的燃料量,使得始终保持预定的恒定的空气 - 燃料比。 燃料流量运算单元,其从检测发动机的进气歧管中的压力的​​传感器提供的输入运算,计算每进气冲程的燃料流量。 燃料流量运算单元的输出作为地址输入应用于存储器,其中存储有从燃料流量运算单元提供的每个值的预先存储的驱动时间值。 考虑到燃料喷射阀的非零打开和关闭时间来计算驾驶时间,从而消除燃料流量驱动时间特性的非线性。 驱动信号发生电路驱动(打开)由存储器输出的驱动时间指示的时间的燃料喷射阀。