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    Hydraulic control system with passive charging of an accumulator
    3.
    发明授权
    Hydraulic control system with passive charging of an accumulator 有权
    液压控制系统，蓄能器被动充电

    公开(公告)号：US08596294B2

    公开(公告)日：2013-12-03

    申请号：US13206979

    申请日：2011-08-10

    申请人： Paul G. Otanez ,  Casie M. Bockenstette ,  Carlos E. Marin

    发明人： Paul G. Otanez ,  Casie M. Bockenstette ,  Carlos E. Marin

    IPC分类号： F16K17/00

    CPC分类号： F16H61/0206 ,  B60Y2300/192 ,  B60Y2300/194 ,  F15B1/027 ,  F15B2211/212 ,  F15B2211/30505 ,  F16H61/0021 ,  F16H2061/0034 ,  Y10T137/0318 ,  Y10T137/7722 ,  Y10T137/7737 ,  Y10T477/631

    摘要： A hydraulic control system for a vehicle powertrain with an engine capable of being selectively turned on and turned off includes an accumulator, a plurality of fluid passages through which a fluid flows between the accumulator and a transmission associated with the powertrain, and a smart memory alloy (SMA) valve in fluid communication with at least one of the fluid passages. The SMA valve has a transition temperature. When the temperature of the fluid is less than or about equal to the transition temperature, the SMA valve closes, and when the temperature of the fluid exceeds the transition temperature, the SMA valve opens. When the SMA valve is closed, the accumulator cannot be charged with fluid, that is, the accumulator, does not fill with fluid, and when the SMA valve is open, the accumulator charges with fluid passively.

    摘要翻译： 用于具有能够选择性地打开和关闭的发动机的车辆动力系的液压控制系统包括蓄能器，多个流体通道，流体在蓄能器和与动力系相关联的变速器之间流动，以及智能存储器合金 （SMA）阀与至少一个所述流体通道流体连通。 SMA阀具有转变温度。 当流体温度小于或等于转换温度时，SMA阀关闭，当流体温度超过转换温度时，SMA阀打开。 当SMA阀关闭时，蓄能器不能充满液体，即蓄能器不会充满流体，当SMA阀打开时，蓄能器被动被流体流入。