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    • 9. 发明公开
    • HYDRAULIC DRIVE SYSTEM
    • 水力发电系统
    • EP3168076A1
    • 2017-05-17
    • EP15818685.8
    • 2015-06-24
    • KYB Corporation
    • INADA, TakanoriIWANAJI, Tetsuya
    • B60K17/10F16H61/4017F16H61/478
    • B60K17/10F15B11/17F15B13/027F15B13/06F15B2211/20576F15B2211/25F16H39/02F16H61/4017F16H61/4061F16H61/478
    • A hydraulic drive system includes: a first hydraulic motor (12) and a second hydraulic motor (22) configured to be driven by working oils respectively discharged from a first hydraulic pump (11) and a second hydraulic pump (21) to transmit powers to different drive wheels of right and left drive wheels (2, 3); a first pump control unit (13) and a second pump control unit (23) configured to control discharge volumes and discharge directions of the first hydraulic pump (11) and the second hydraulic pump (21); a signal pressure generating unit (40) configured to generate a signal pressure for adjusting command pressures to control the first pump control unit (13) and the second pump control unit (23) in accordance with the sum of discharge pressures of the first hydraulic pump (11) and the second hydraulic pump (21); and a first pressure adjusting unit (50) and a second pressure adjusting unit (60) configured to adjust the command pressures in accordance with the signal pressure.
    • 液压驱动系统包括:第一液压马达(12)和第二液压马达(22),其构造成由分别从第一液压泵(11)和第二液压泵(21)排出的工作油驱动,以将动力传递到 左右驱动轮(2,3)的不同驱动轮; 第一泵控制单元(13)和第二泵控制单元(23),被配置为控制第一液压泵(11)和第二液压泵(21)的排出量和排出方向。 信号压力生成单元(40),被配置为根据第一液压泵的排出压力之和产生用于调节指令压力的信号压力,以控制第一泵控制单元(13)和第二泵控制单元(23) (11)和第二液压泵(21); 以及第一压力调节单元(50)和第二压力调节单元(60),其被构造成根据所述信号压力来调节所述指令压力。