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    • 1. 发明授权
    • Power transmission device
    • 动力传动装置
    • US09086140B2
    • 2015-07-21
    • US13281998
    • 2011-10-26
    • Tetsuya ShimizuTomomi IshikawaTomoya JinnoKenichi TsuchidaKazunori Ishikawa
    • Tetsuya ShimizuTomomi IshikawaTomoya JinnoKenichi TsuchidaKazunori Ishikawa
    • F16H61/00F16H61/02
    • F16H61/0021F16H61/0031F16H61/0206F16H2312/14F16H2312/20
    • A power transmission device that transmits power from a motor to a wheel via a hydraulically driven friction engagement element and that includes a mechanical pump driven by the motor to produce a hydraulic pressure that is regulated by a pressure regulating valve; an electric pump that produces a hydraulic pressure; a switching mechanism that either switches an output pressure of the regulating valve or an output pressure of the electric pump to a servo of the engagement element based upon a signal pressure; a passage to supply pressure from the mechanical pump to the hydraulic servo; a check valve in the passage that allows supply of the pressure from the mechanical pump to the hydraulic servo and prohibits supply of the pressure from the electric pump to the mechanical pump, and the switching mechanism either shuts off or allows communication through the passage based upon the signal pressure.
    • 一种动力传递装置,其通过液压驱动的摩擦接合元件将电动机从电动机传递到车轮,并且包括由电动机驱动的机械泵,以产生由压力调节阀调节的液压; 产生液压的电动泵; 切换机构,其基于信号压力将调节阀的输出压力或电动泵的输出压力切换到接合元件的伺服机构; 从机械泵向液压伺服提供压力的通道; 通道中的止回阀,其允许将来自机械泵的压力提供给液压伺服机构,并禁止从电动泵向机械泵供给压力,并且切换机构关闭或允许通过通道的连通基于 信号压力。
    • 8. 发明授权
    • Hydraulic control device for automatic transmission
    • 液压控制装置自动变速器
    • US08123642B2
    • 2012-02-28
    • US12629390
    • 2009-12-02
    • Tomomi IshikawaHiroyuki KutsuboTetsuya ShimizuKenichi TsuchidaKazunori IshikawaNaoyuki Fukaya
    • Tomomi IshikawaHiroyuki KutsuboTetsuya ShimizuKenichi TsuchidaKazunori IshikawaNaoyuki Fukaya
    • F16H31/00
    • F16H61/0021F16H3/663
    • A hydraulic control device for an automatic transmission, including: a hydraulic pressure source; a plurality of friction engagement elements; a line pressure regulating valve that regulates hydraulic pressure from the hydraulic pressure source to a predetermined line pressure; a plurality of operation pressure regulating valves that regulate the line pressure as operation pressure for a hydraulic servo operating a friction engagement element; a maximum pressure conducting circuit that feeds a maximum pressure, among the operation pressures, to the line pressure regulating valve, wherein the friction engagement elements are engaged and released to achieve a plurality of forward speeds and a reverse speed, and the line pressure regulating valve regulates the line pressure during forward travel based on the maximum operation pressure, and regulates the line pressure during reverse travel based on the operation pressure input from a specific operation pressure regulating valve.
    • 一种用于自动变速器的液压控制装置,包括:液压源; 多个摩擦接合元件; 线压力调节阀,其将从液压源的液压调节到预定的管路压力; 多个操作压力调节阀,其将作为操作摩擦接合元件的液压伺服系统的管路压力调节为操作压力; 最大压力传导电路,其将操作压力中的最大压力馈送到管路压力调节阀,其中所述摩擦接合元件被接合和释放以实现多个前进速度和反向速度,并且所述管路压力调节阀 基于最大操作压力来调节正向行驶期间的管路压力,并且基于从特定操作压力调节阀输入的操作压力来调节反向行驶期间的管路压力。