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    • 10. 发明授权
    • Control system for automatic transmission
    • 自动变速器控制系统
    • US5588927A
    • 1996-12-31
    • US455677
    • 1995-06-01
    • Kazumasa TsukamotoMasahiko AndoMasahiro HayabuchiAkira FukatsuToshiyuki MaeMasato KaigawaKagenori FukumuraHidehiro ObaYasuo HojoHiromichi KimuraAtsushi TabataTetsuo HamajimaNobuaki Takahashi
    • Kazumasa TsukamotoMasahiko AndoMasahiro HayabuchiAkira FukatsuToshiyuki MaeMasato KaigawaKagenori FukumuraHidehiro ObaYasuo HojoHiromichi KimuraAtsushi TabataTetsuo HamajimaNobuaki Takahashi
    • F16H61/02F16H61/04F16H61/06F16H61/00
    • F16H61/061F16H2061/0253F16H2061/0258F16H2061/0444F16H61/0206F16H61/065F16H61/067
    • A control system for an automatic transmission includes a first frictional engagement element and a second frictional engagement element; and a first hydraulic servo for controlling the application/release of the first frictional engagement element and a second hydraulic servo for controlling the application/release of the second frictional engagement element. A regulator valve regulates the oil pressure to the first hydraulic servo. A signal pressure is applied to the regulator valve to establish a predetermined gear stage by switching the applied/released states of the first frictional engagement element and the second frictional engagement element by feeding/releasing oil pressure to/from the first hydraulic servo and the second hydraulic servo. The regulator valve includes a valve member having: a first pressure receiving area to which is applied the feed pressure to the first hydraulic servo as a feedback pressure in a first direction; a second pressure receiving area to which is applied the signal pressure in a second direction opposite the first direction; a fourth pressure receiving area to which is applied the feed pressure to the second hydraulic servo in the first direction, in a shift wherein the first frictional engagement element is released while the second frictional-engagement element is applied; and a third pressure receiving area to which is applied the signal pressure in the second direction, for regulation of the oil pressure only during a shift.
    • 用于自动变速器的控制系统包括第一摩擦接合元件和第二摩擦接合元件; 以及用于控制第一摩擦接合元件的施加/释放的第一液压伺服机构和用于控制第二摩擦接合元件的施加/释放的第二液压伺服机构。 调节阀调节第一液压伺服系统的油压。 信号压力施加到调节阀,以通过将第一摩擦接合元件和第二摩擦接合元件的施加/释放状态通过向/从第一液压伺服机构供给/释放油压来切换第一摩擦接合元件和第二摩擦接合元件的施加/释放状态来建立预定齿轮级, 液压伺服 调节阀包括阀构件,该阀构件具有第一受压区域,第一压力接收区域向第一液压伺服机构施加作为第一方向的反馈压力的进给压力; 在与第一方向相反的第二方向施加信号压力的第二压力接收区域; 在施加第二摩擦接合元件的同时释放第一摩擦接合元件的变化中,向第一方向施加供给压力的第四压力接收区域; 以及在第二方向施加信号压力的第三压力接收区域,用于仅在变速期间调节油压。