Pulse actuated hub locks and control arrangement
    2.
    发明授权
    Pulse actuated hub locks and control arrangement 失效
    脉冲驱动轮毂锁和控制装置

    公开(公告)号:US5445258A

    公开(公告)日:1995-08-29

    申请号:US200181

    申请日:1994-02-22

    摘要: A pulse actuated clutch and control arrangement for coupling and decoupling a drive line of a vehicle relative to a wheel such as when shifting between two-wheel and four-wheel drive modes. The pulse actuated clutch has a coupling member that is permanently engaged with one of a driven member and a driving member. The coupling member is movable in a first direction to engage one of the driven and driving members and is movable in a second direction to engage both the driven and driving members. The coupling member is moved in the second direction by a first pulse of air pressure applied thereto. Formations of the piston assembly and the driven member cooperatively latch the piston in the second position to maintain the coupling member in engagement with both the driven and driving members following first pulse of air pressure. A second, greater magnitude pulse of air pressure moves the primary piston further to unlatch the piston and uncouple the driven member from the driving member. The illustrated control arrangement incorporated into a general purpose control module for a vehicle to accomplish pulse actuated control over the clutch mechanism in coordination with other vehicle control activities. The control arrangement makes use of timers and references vehicle conditions to ensure mechanical transition of the pulse actuated clutch mechanism fully into a desired state.

    摘要翻译: 用于将车辆的驱动线相对于车轮相耦合和去耦的脉冲致动离合器和控制装置,例如在两轮和四轮驱动模式之间移动时。 脉冲致动离合器具有与被驱动构件和驱动构件中的一个永久地接合的联接构件。 联接构件可沿第一方向移动以接合驱动构件和驱动构件中的一个,并且可沿第二方向移动以接合驱动构件和驱动构件。 联接构件通过施加到其上的第一空气压力脉冲沿第二方向移动。 活塞组件和从动构件的组合将活塞协作地锁定在第二位置,以在第一气压脉冲之后保持联接构件与驱动构件和驱动构件接合。 第二个更大幅度的空气压力脉冲进一步移动主活塞以使活塞解锁并将从动构件与驱动构件分离。 所示的控制装置结合到用于车辆的通用控制模块中,以与其他车辆控制活动协调地完成离合器机构的脉冲致动控制。 控制装置利用定时器和参考车辆条件来确保脉冲致动离合器机构的机械转换完全进入期望的状态。

    Software calibration of speed sensors
    3.
    发明授权
    Software calibration of speed sensors 失效
    速度传感器的软件校准

    公开(公告)号:US5377127A

    公开(公告)日:1994-12-27

    申请号:US151699

    申请日:1993-11-15

    IPC分类号: G01P21/02 G06F15/20 G01P21/00

    CPC分类号: G01P21/02

    摘要: This is a method and apparatus for operating a transfer case of a four wheel drive vehicle wherein sensors detecting rotation of the front and rear drive shafts speed are scaled to produce an advantageously accurate representation of vehicle speed. The method generates a scaling factor by comparing stored information to information sensed by rotational sensors on the front and rear drive shaft.

    摘要翻译: 这是用于操作四轮驱动车辆的分动箱的方法和装置,其中传感器检测前驱动轴和后驱动轴转速的旋转速度被缩放以产生车速的有利的精确表示。 该方法通过将存储的信息与前驱动轴和后驱动轴上的旋转传感器感测的信息进行比较来生成比例因子。