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    Method of controlling speed changes in hydraulically actuated type multiple-stage speed change gear
    51.
    发明授权
    Method of controlling speed changes in hydraulically actuated type multiple-stage speed change gear 失效
    控制液压致动式多级变速齿轮变速的方法

    公开(公告)号：US5265499A

    公开(公告)日：1993-11-30

    申请号：US876700

    申请日：1992-04-29

    申请人： Kohei Soka ,  Kiyoshi Kaneko ,  Yasunori Okura ,  Takeo Kato

    发明人： Kohei Soka ,  Kiyoshi Kaneko ,  Yasunori Okura ,  Takeo Kato

    IPC分类号： F16H59/70 ,  F16H61/10 ,  F16H61/14 ,  B60K41/06

    CPC分类号： F16H61/10 ,  F16H61/143 ,  F16H2061/146 ,  F16H59/70 ,  Y10T477/6351

    摘要： A method of controlling speed changes in a hydraulically actuated type multiple-stage speed change gear, which renders it possible to prevent the occurrence of "shift hunting" without impairing the acceleration characteristics of the vehicle and also reduce the magnitude of shocks which occur at the time of speed changes even in case hydraulic clutches of small capacity are used. According to this method of controlling speed changes, a controller (30) is used to conduct speed changes when conditions for speed changes, i.e., upshift/downshift are satisfied, and in cases where a downshift is made after an upshift and an upshift is made after a downshift, speed changes are conducted after the lapse of a long speed change inhibiting time, and in other cases than the aforementioned, speed changes are conducted after the lapse of a short speed change inhibiting time. Further, only in case the vehicle is decelerated from a high speed stage to a coasting speed, deceleration operations are conducted with a direct coupled clutch (8) of the torque converter (3) kept in engaged condition, and in other cases than the aforementioned, speed changes are conducted with the direct coupled clutch kept in released condition.

    摘要翻译： 一种控制液压致动型多级变速齿轮速度变化的方法，其可以防止“换档”的发生而不损害车辆的加速特性，并且还可以减小在 即使使用小容量的液压离合器，速度变化也是如此。 根据这种控制速度变化的方法，当满足速度变化的条件（即升档/降档）时，使用控制器（30）进行速度变化，并且在升档和升档之后进行降档的情况下 在降档之后，在经过长时间变化抑制时间之后进行速度变化，并且在其他情况下，在经过短时间变化抑制时间之后进行速度变化。 此外，仅在车辆从高速档位减速到滑行速度的情况下，通过变矩器（3）的直接联接离合器（8）保持接合状态进行减速操作，在其他情况下， ，直接耦合离合器保持在释放状态下进行速度变化。