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    • 86. 发明授权
    • Gearshift control apparatus for automatic transmission which alters
pre-inertia phase hydraulic pressure command parameters for engagement
side clutch
    • 用于自动变速器的换档控制装置,其改变接合侧离合器的预惯性相位液压指令参数
    • US6149547A
    • 2000-11-21
    • US143658
    • 1998-08-31
    • Hidehiro ObaHiroatsu Endo
    • Hidehiro ObaHiroatsu Endo
    • B60W10/04B60W10/10B60W10/11F16H59/72F16H61/00F16H61/06F16H61/08
    • F16H61/061F16H2061/0087F16H2061/0477F16H59/72Y10T477/6937Y10T477/69383Y10T477/69387
    • In a gearshift control apparatus for an automatic transmission wherein the torque capacity of a release side clutch is gradually lowered, and the torque capacity of an engagement side clutch is gradually raised, whereby the release side clutch and the engagement side clutch are changed-over to effect a clutch-to-clutch gearshift; control means issues two control commands to the engagement side hydraulic control mechanism in a term which extends until an inertia phase begins since start of the gearshift control. A first hydraulic pressure command (D1) is issued for a predetermined time period. The first hydraulic pressure command (D1) is variable for adjusting the timing of the changeover between the clutches. The second hydraulic pressure command (D2) succeeding the first one is issued until the inertia phase begins. The second hydraulic pressure command is variable for adjusting the torque capacity of the engagement side clutch at the changeover. Thus, the timing of the clutch-to-clutch changeover is appropriately regulated without prolonging a gearshifting time period.
    • 在用于自动变速器的变速控制装置中,其中释放侧离合器的扭矩能力逐渐降低,并且接合侧离合器的扭矩能力逐渐升高,由此将释放侧离合器和接合侧离合器切换到 实现离合器离合器换档; 控制装置向接合侧液压控制机构发出两个控制命令,其延伸直到从换档控制开始起惯性阶段开始。 在预定时间段内发出第一液压指令(D1)。 第一液压指令(D1)是可变的,用于调节离合器之间切换的时间。 发出第一次的第二液压指令(D2),直到惯性阶段开始。 第二液压指令是可变的,用于在切换时调节接合侧离合器的扭矩能力。 因此,在不延长换挡时间的条件下适当地调节离合器离合器切换的时刻。