Clutch pressure control based on output shaft speed
    41.
    发明授权
    Clutch pressure control based on output shaft speed 失效
    基于输出轴转速的离合器压力控制

    公开(公告)号:US5251132A

    公开(公告)日:1993-10-05

    申请号:US651700

    申请日:1991-02-05

    申请人: Garth H. Bulgrien

    发明人: Garth H. Bulgrien

    摘要: In a powershift transmission system the output shaft and driveline unwind and then wind up during shifting under load as the torque applied to the shaft through a first clutch is reduced and the torque applied to the shaft through a second clutch is increased. The degree of winding or unwinding is dependent on the load being driven by the shaft and is manifested as an apparent increase or decrease in the rate of rotation of the output shaft as measured at the transmission end of the shaft. The rate of rotation of the transmission output shaft is sensed during shifting and the second clutch pressure is controlled in accordance with the sensed rate of rotation so that the second clutch pressure varies according to the load. The arrangement reduces sudden accelerations under no-load conditions but permits near optimum clutch pressures at heavier loads.

    摘要翻译: 在功率变换传动系统中,输出轴和传动系统在通过第一离合器施加到轴上的扭矩减小并且通过第二离合器施加到轴的扭矩增加时,在负载变速期间松开然后卷起。 卷绕或退绕的程度取决于由轴驱动的负载,并且表现为在轴的传动端处测量的输出轴的旋转速度的明显增加或减小。 在变速期间感测到变速器输出轴的旋转速度,并且根据感测的转速来控制第二离合器压力,使得第二离合器压力根据负载而变化。 该装置在空载条件下减少了突然的加速度,但是在较重的载荷下允许接近最佳的离合器压力。