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    • 77. 发明授权
    • Device for controlling fuel injection
    • 燃油喷射控制装置
    • US06332455B1
    • 2001-12-25
    • US09688862
    • 2000-10-17
    • Mamoru SumidaNorihisa FukutomiOsamu Matsumoto
    • Mamoru SumidaNorihisa FukutomiOsamu Matsumoto
    • F02M5100
    • F02D41/20F02D2250/31
    • A device for controlling fuel injection preventing the wasteful consumption of electric power and expanding the dynamic range for controlling the amount of fuel. The device comprises fuel pressure regulator means (4) for adjusting fuel pressure (Pf) of the fuel to be injected, injector drive means (5) including an electromagnetic coil for opening the valve body of the injector (2), and injection control means (1) for controlling the fuel regulator means and the injector drive means depending upon the operating conditions (Ne, Qa and Pf), wherein, the injection control means includes an injection timer (13) for setting the exciting time for controlling the driving time for opening the valve body by controlling the exciting current and the exciting time for the electromagnetic coil, an over-excitation timer (14) for feeding an over-exciting current, and an over-exciting period control unit (15) for variably setting the initial count value of the over-excitation timer depending upon the fuel pressure, and wherein the over-exciting period is variably set to be a minimum required limit that increases with an increase in the fuel pressure.
    • 一种用于控制燃料喷射的装置,其防止浪费的电力消耗并且扩大用于控制燃料量的动态范围。 该装置包括用于调节要喷射的燃料的燃料压力(Pf)的燃料压力调节装置(4),包括用于打开喷射器(2)的阀体的电磁线圈的喷射器驱动装置(5),以及喷射控制装置 (1),用于根据操作条件(Ne,Qa和Pf)控制燃料调节器装置和喷射器驱动装置,其中,喷射控制装置包括用于设定用于控制驱动时间的激励时间的喷射定时器(13) 用于通过控制电磁线圈的励磁电流和激励时间来打开阀体,用于馈送过励磁电流的过励磁定时器(14)和用于可变地设定过励磁电流的过激励周期控制单元(15) 过励磁定时器的初始计数值取决于燃料压力,并且其中过激励时段可变地设定为随燃料压力增加而增加的最小要求极限。