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29 条记录 (耗时 0.028 秒)

    Anti torque shock control device and method engaging torque transmitting clutch between vehicle wheels when transmission is shifted from non drive range to drive range
    1.
    发明授权
    Anti torque shock control device and method engaging torque transmitting clutch between vehicle wheels when transmission is shifted from non drive range to drive range 失效
    抗扭矩冲击控制装置和方法，当传动从非驱动范围转换到驱动范围时，在车轮之间接合扭矩传递离合器

    公开(公告)号：US4792012A

    公开(公告)日：1988-12-20

    申请号：US135451

    申请日：1987-12-21

    申请人： Kunio Morisawa ,  Hideki Yasue ,  Kagenori Fukumura ,  Kenichi Yoshizawa ,  Yasunari Nakamura

    发明人： Kunio Morisawa ,  Hideki Yasue ,  Kagenori Fukumura ,  Kenichi Yoshizawa ,  Yasunari Nakamura

    IPC分类号： B60K23/08

    CPC分类号： B60K23/0808 ,  B60W2540/16

    摘要： A vehicle has at least two wheels, a transmission mechanism, and a clutch which can be selectively engaged to at least partially rotationally couple together these two wheels. This anti torque shock control device includes a means for detecting whether or not shift range of the transmission mechanism is a vehicle non driving range or a vehicle driving range, and a means for controlling the clutch to be at least partially engaged, when shift range of the transmission mechanism alters from a vehicle non driving range to a vehicle driving range. Thus torque shock and power train noise at this time are effectively prevented. The method of operation of this device is also described. In various applications, the clutch may be a switchover clutch for controlling the vehicle between two wheel drive operation and four wheel drive operation, selectively coupling between front wheels of the vehicle and rear wheels of the vehicle; or may be a central differential control clutch for controlling a central differential device of the vehicle between modes of operation in which the central differential device does and does not provide central differential effect between the front wheels of the vehicle and the rear wheels of the vehicle; or may be an axle differential control clutch for controlling a front or a rear differential device of the vehicle between modes of operation in which it does and does not provide differential effect between a pair of left and right wheels of the vehicle on the same axle.

    摘要翻译： 车辆具有至少两个轮子，传动机构和离合器，其可以选择性地接合以至少部分地旋转地联接在一起，这两个车轮。 该抗扭矩冲击控制装置包括用于检测变速机构的换档范围是车辆非行驶范围还是车辆行驶范围的装置，以及用于控制离合器至少部分接合的装置，当变速范围 变速机构从车辆非行驶范围变化到车辆行驶范围。 因此，有效地防止了此时的扭矩冲击和动力传动系噪声。 还描述了该装置的操作方法。 在各种应用中，离合器可以是用于在两轮驱动操作和四轮驱动操作之间控制车辆的切换离合器，选择性地联接车辆的前轮和车辆的后轮; 或者可以是用于控制车辆的中央差速装置的中央差速控制离合器，其中，所述中央差速装置在中央差速装置的作用模式之间，并且不在车辆的前轮和车辆的后轮之间提供中心差动作用; 或者可以是用于控制车辆的前后差速装置的车轴差速控制离合器，在其所在的操作模式之间，并且不会在同一轴上的车辆的左右一对车轮之间提供差速效应。

    Four wheel drive vehicle slippage control device and method limiting center differential action during transmission shifting
    10.
    发明授权
    Four wheel drive vehicle slippage control device and method limiting center differential action during transmission shifting 失效

    公开(公告)号：US4699236A

    公开(公告)日：1987-10-13

    申请号：US2266

    申请日：1987-01-12

    申请人： Kunio Morisawa ,  Yasunari Nakamura

    发明人： Kunio Morisawa ,  Yasunari Nakamura

    IPC分类号： B60K17/346 ,  B60K23/08 ,  B60K17/34

    CPC分类号： B60K17/3462 ,  B60K23/0808

    摘要： In a four wheel drive power transmission system for a vehicle, a power distribution device receives power from an engine and provides rotational power to the combination of the front wheels and also to the combination of the rear wheels, and is controllable either to provide differential action between the front wheels combination and the rear wheels combination, or for this differential action to be at least partially inhibited. This slippage control device includes: a subsystem which detects occurrence of certain speed shift circumstances of the transmission mechanism; and a subsystem which controls the power distribution device to at least partly inhibit its differential function, if the speed shift circumstances detection subsystem determines that the transmission mechanism is in fact undergoing the speed shift circumstances. The method of operation of this device is also described. The control of the power distribution device may be according to elapsed time from the time point of outputting of a speed shift command signal to the transmission mechanism, and may be based upon type of speed shift, or based upon load on the vehicle engine, or based upon the manually set operating range for the transmission mechanism, if it is an automatic transmission mechanism. Typically, the speed shift circumstances are speed down shift circumstances, quite usually circumstances of speed down shift to the first speed stage of the transmission mechanism, such as may accompanying a manual change of operational range of the transmission mechanism such as from "D" range to "L" range. The inhibition of differential action may be only performed if vehicle road speed is higher than a determinate value, or vehicle turning angle is lower than a determinate value, or both. The invention is particularly useful when the power distribution device for four wheel drive is of a type which, when thus being controlled to provide differential action, distributes drive torque substantially unequally between the front wheels combination and the rear wheels combination.