Control apparatus for automatic transmission of vehicle
    1.
    发明授权
    Control apparatus for automatic transmission of vehicle 有权
    车辆自动变速器控制装置

    公开(公告)号:US06315692B1

    公开(公告)日:2001-11-13

    申请号:US09594576

    申请日:2000-06-15

    IPC分类号: F16H4502

    摘要: In a control apparatus for that automatic transmission of a vehicle which is provided with speed-change solenoid valves for regulating the hydraulic oil pressures in the hydraulic engaging elements through speed-change control valves corresponding to the hydraulic engaging elements, cleaning work to remove foreign matter in the solenoid valves is performed by varying the opening degree of the speed-change solenoid valves during running of the vehicle without affecting the hydraulic oil pressures in the hydraulic engaging elements. At the time of a line pressure control mode in which the line pressure is reduced below a maximum set pressure, the opening degree of the speed-change solenoid valve is varied within a range in which there is outputted a signal pressure higher than a minimum signal pressure required to fully open a speed-change control valve which corresponds to the hydraulic engaging element of the then-established speed transmission train.

    摘要翻译: 在用于车辆自动变速器的控制装置中,该控制装置具有变速电磁阀,用于通过对应于液压接合元件的变速控制阀调节液压接合元件中的液压油压力,以清除异物 在电磁阀中通过在车辆行驶期间改变变速电磁阀的开度而不影响液压接合元件中的液压油压来执行。 在线路压力降低到最大设定压力以下的线路压力控制模式时,变速电磁阀的开度在输出信号压力高于最小信号的范围内变化 完全打开对应于当时建立的速度传动系的液压啮合元件的变速控制阀所需的压力。