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    • 7. 发明授权
    • Actuator drive system and fuel injection system
    • 执行器驱动系统和燃油喷射系统
    • US07316220B2
    • 2008-01-08
    • US11007153
    • 2004-12-09
    • Takashi Kikutani
    • Takashi Kikutani
    • F02M37/04
    • F02D41/20F02D2041/2006F02D2041/2051
    • A control device of a fuel injection system of an engine calculates command injection timing for starting an injection at target injection timing, and a command injection period for obtaining a target injection quantity. The control device monitors a charging voltage of a capacitor immediately before the command injection timing and estimates the charging voltage at the command injection timing based on the monitored value. If the estimated value is less than a specified value, the control device performs correction for advancing the command injection timing and correction for lengthening the command injection period in accordance with the decrease in the charging voltage. Thus, an injector can start the injection at the target injection timing and can inject the target injection quantity of fuel.
    • 发动机的燃料喷射系统的控制装置计算用于在目标喷射正时开始喷射的指令喷射正时,以及用于获得目标喷射量的指令喷射期间。 控制装置在命令喷射正时之前监视电容器的充电电压,并基于监视值估计指令喷射定时的充电电压。 如果估计值小于指定值,则控制装置根据充电电压的降低,进行指令喷射正时的校正和指令喷射期间的延长校正。 因此,喷射器可以在目标喷射正时开始喷射并且可以喷射目标喷射量的燃料。