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    • 25. 发明授权
    • Control apparatus for an automatic transmission
    • 用于自动变速器的控制装置
    • US5807207A
    • 1998-09-15
    • US771144
    • 1996-12-20
    • Takayuki HisanoKazumasa TsukamotoMasahiro HayabuchiHiroshi Tsutsui
    • Takayuki HisanoKazumasa TsukamotoMasahiro HayabuchiHiroshi Tsutsui
    • F16H61/04F16H61/02F16H61/06F16H63/30
    • F16H63/3003F16H61/0246F16H61/061Y10T477/689Y10T477/6895
    • In order to improve transmission efficiency of an automatic transmission, an engagement brake which does not cause drag is used and the surety of its engagement and release, and quick switching between forward maneuver and backward maneuver, is enabled. The automatic transmission comprises a transmission mechanism to achieve forward maneuver and backward maneuver. A backward motion brake which stops the rotation element to achieve backward maneuver is the engagement brake and an input clutch to transfer power by meshing with the rotation element during both forward maneuver and backward maneuver is a friction clutch. The control apparatus executes the control operation to prepare for speedy re-meshing by holding a supply pressure for the clutch hydraulic servo at a sufficient oil pressure to place the pressure in the stand-by condition at the piston stroke position immediately before the start of clutch engagement during the engagement or releasing of engagement of the engagement brake at the time of D.fwdarw.R or R.fwdarw.D shift.
    • 为了提高自动变速器的传动效率,使用不引起牵引力的接合制动器,并且能够实现其接合和释放的保证,以及向前机动和向后机动之间的快速切换。 自动变速器包括一个实现向前机动和向后机动的传动机构。 一个向后运动的制动器,其停止旋转元件以实现向后的操纵是接合制动器,并且通过在向前机动和向后机动两者期间与旋转元件啮合来传递动力的输入离合器是摩擦离合器。 控制装置通过在足够的油压下保持离合器液压伺服的供给压力来进行控制操作,以准备快速重新啮合,以将压力置于待机状态下的紧急起动前的活塞行程位置 在D-> R或R-> D移位时接合或释放接合制动器的接合的接合。