Diagnostic apparatus for continuously variable transmission
    1.
    发明授权
    Diagnostic apparatus for continuously variable transmission 失效
    无级变速器诊断装置

    公开(公告)号:US4698764A

    公开(公告)日:1987-10-06

    申请号:US694280

    申请日:1985-01-24

    摘要: A diagnostic apparatus for a continuously variable transmission the speed ratio and/or the rate of variation in the speed ratio of which are controlled by a shift-regulating device controlled by command signals from a control system. The diagnostic apparatus, which checks if the speed ratio is normally controlled, comprises: a detecting device for detecting an actual speed ratio and/or an actual rate of variation in the speed ratio; a memory storing data for determining normal ranges of the speed ratio and/or normal ranges of the rate of variation in the speed ratio, the normal ranges corresponding to shifting conditions of the transmission which are established by the shift-regulating device according to the command signals; and a judging device for selecting one of the normal ranges of the speed ratio, and/or one of the normal ranges of the rate of variation in the speed ratio, based on the command signals, the judging device checking whether the detected actual speed ratio and/or the detected actual rate of variation in the speed ratio fall within the selected normal ranges.

    摘要翻译: 一种用于无级变速器的诊断装置,其速度比和/或其速比的变化率由通过来自控制系统的命令信号控制的换档调节装置控制。 检查速度比是否正常地被控制的诊断装置包括:用于检测实际速比和/或速比的实际变化率的检测装置; 存储数据,用于确定速度比的正常范围和/或速度比的变化率的正常范围,对应于由换档调节装置根据命令建立的变速器的移动条件的正常范围 信号; 以及判断装置,用于根据命令信号选择速比的正常范围中的一个范围和/或速度比的变化率的正常范围中的一个,判断装置检查检测到的实际速比 和/或检测到的速比的实际变化率落在所选择的正常范围内。

    Device for detecting and eliminating accumulator fluid leakage through
control valve
    3.
    发明授权
    Device for detecting and eliminating accumulator fluid leakage through control valve 失效
    用于通过控制阀检测和消除累加器流体泄漏的装置

    公开(公告)号:US5221125A

    公开(公告)日:1993-06-22

    申请号:US711651

    申请日:1991-06-06

    摘要: A fluid leakage preventing device incorporated in a hydraulically-operated system which includes an accumulator for storing a working fluid under pressure, an actuator operated by the fluid supplied from the accumulator, and a control valve having an open position and a closed position for fluid communication and disconnection between the accumulator and the actuator, respectively. The fluid leakage preventing device includes a fluid leakage detector for generating an output signal indicative of the leakage flow of the fluid from said accumulator through the control valve placed in the closed position. The device further includes a valve reciprocating arrangement responsive to the output signal of said fluid leakage detector, for effecting at least one reciprocating movement of a valving member of the control valve.

    摘要翻译: 一种结合在液压操作系统中的流体泄漏防止装置,其包括用于存储压力下的工作流体的蓄能器,由蓄能器供应的流体操作的致动器以及具有用于流体连通的打开位置和关闭位置的控制阀 以及蓄能器和致动器之间的断开。 流体泄漏防止装置包括:流体泄漏检测器,用于产生表示来自所述蓄能器的流体通过置于关闭位置的控制阀的泄漏流的输出信号。 该装置还包括响应于所述流体泄漏检测器的输出信号的阀往复装置,用于实现控制阀的阀构件的至少一个往复运动。

    Vehicle control system
    4.
    发明授权
    Vehicle control system 失效
    车辆控制系统

    公开(公告)号:US5200897A

    公开(公告)日:1993-04-06

    申请号:US528890

    申请日:1990-05-25

    IPC分类号: B60T8/172 B60T8/66

    摘要: A plurality of speed sensors sense rotational speeds of respective vehicle wheels including a right-hand vehicle wheel and a left-hand vehicle wheel. A speed of the right-hand vehicle wheel and a speed of the left-hand vehicle wheel are calculated on the basis of detection signals of the speed sensors. A judgment is made as to whether or not a vehicle wheel having a small tire is present in the vehicle wheels on the basis of the calculated speeds of the right-hand vehicle wheel and the left-hand vehicle wheel. In cases where a vehicle wheel having a small tire is judged to be absent, a control quantity is calculated by use of all the detection signals of the speed sensors. In cases where a vehicle wheel having a small tire is judged to be present, a control quantity is calculated by use of the detection signals of the speed sensors except the detection signal of the speed sensor of the vehicle wheel having the small tire. A controlled object is controlled in accordance with the calculated control quantity.

    摘要翻译: 多个速度传感器检测包括右侧车轮和左侧车轮的各车轮的转速。 基于速度传感器的检测信号计算右侧车轮的速度和左侧车轮的速度。 基于计算出的右侧车轮和左侧车轮的速度,判断车轮是否存在具有小轮胎的车轮。 在判断为不具有小轮胎的车轮的情况下,通过使用速度传感器的全部检测信号来计算控制量。 在判定具有小轮胎的车轮的情况下,通过除了具有小轮胎的车轮的速度传感器的检测信号之外的速度传感器的检测信号来计算控制量。 受控对象根据计算出的控制量进行控制。