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    • 6. 发明授权
    • Controller for pressure reducing valve
    • 减压阀控制器
    • US08789511B2
    • 2014-07-29
    • US13211551
    • 2011-08-17
    • Masakazu Sakata
    • Masakazu Sakata
    • F02M1/00F02D41/38F02D41/24
    • F02D41/2451F02D41/2464F02D41/3863F02D2200/0602
    • A controller for a pressure reducing valve is applied to a fuel injection system which is provided with a pressure reducing valve in a common-rail and a fuel pressure sensor detecting a fuel pressure in a fuel supply passage from the accumulator to an injection port of the fuel injector. The controller includes a fuel-pressure-variation detector for detecting a fuel pressure variation timing at which a detection value of the fuel pressure sensor is varied due to an opening operation or a closing operation of the pressure reducing valve. The controller further includes a response-delay-time computing portion for computing a response delay time of the pressure reducing valve based on a command timing and a fuel pressure variation timing.
    • 用于减压阀的控制器被施加到在共轨中设置有减压阀的燃料喷射系统和检测来自蓄能器的燃料供给通道中的燃料压力到燃料压力传感器的喷射口的燃料压力传感器 喷油器。 控制器包括燃料压力变化检测器,用于检测由于减压阀的打开操作或关闭操作而使燃料压力传感器的检测值发生变化的燃料压力变化定时。 控制器还包括响应延迟时间计算部分,用于基于指令定时和燃料压力变化定时计算减压阀的响应延迟时间。