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    • 81. 发明授权
    • Control device for variable capacity pump
    • 变容量泵控制装置
    • US6010309A
    • 2000-01-04
    • US16601
    • 1998-01-30
    • Fujitoshi TakamuraSeiichi FuchitaJunichi Tanaka
    • Fujitoshi TakamuraSeiichi FuchitaJunichi Tanaka
    • F02D29/04E02F9/22F04B49/06F04B49/08
    • E02F9/2235F04B49/08F04B2201/12041F04B2203/0209
    • A controller, for a variable capacity pump, prevents engine stalls due to rapid changes in operating load by increasing the pump absorption torque when the engine speed is high so as to increase the work amount and by reducing the pump absorption torque when the engine speed is low. The controller receives a signal from an engine speed sensor for detecting engine speed. A pump absorption torque curve is pre-set so as to be consecutively stepped with respect to engine speed so as to intersect at an engine rated point. The pump absorption torque is then calculated in accordance with increases or decreases in engine speed. The pump absorption torque is then set to prescribe values based on the results of these calculations and an instruction is outputted to a control valve in such a manner as to regulate a regulator of the variable capacity pump.
    • 用于可变容量泵的控制器通过在发动机转速高时增加泵的吸收转矩来防止由于操作负载的快速变化引起的发动机失速,从而增加工作量,并且当发动机转速为 低。 控制器接收来自用于检测发动机转速的发动机转速传感器的信号。 泵吸收扭矩曲线被预先设定为相对于发动机转速连续地阶梯,以便在发动机额定点处相交。 然后根据发动机转速的增加或减少来计算泵吸收扭矩。 然后将泵吸收扭矩设定为基于这些计算的结果规定值,并且以调节可变容量泵的调节器的方式将指令输出到控制阀。