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    Strategy for controlling ratio changes in a swap-shift automatic transmission
    4.
    发明授权
    Strategy for controlling ratio changes in a swap-shift automatic transmission 有权
    交换自动变速器控制比例变化的策略

    公开(公告)号：US06370463B1

    公开(公告)日：2002-04-09

    申请号：US09682931

    申请日：2001-11-01

    申请人： Yuji Fujii ,  William Emil Tobler ,  Ted Duane Snyder ,  Marvin Paul Kraska

    发明人： Yuji Fujii ,  William Emil Tobler ,  Ted Duane Snyder ,  Marvin Paul Kraska

    IPC分类号： F16H6104

    CPC分类号： F16H61/061 ,  F16H61/686 ,  F16H2061/0451 ,  F16H2200/201

    摘要： A method for controlling ratio changes in a swap-shift transmission having a first simple planetary gear unit and a second compound planetary gear unit, the two gear units being arranged in series disposition, pressure-operated friction elements for separately braking the reaction member at each of the gear units to establish a change in ratio. The change in ratio consists of a downshift by releasing a reaction friction element for the first gear unit and upshifting the second gear unit by applying a second friction element to anchor a reaction member of the second gear unit in a non-synchronous fashion to achieve a consistent shift quality without precise matching of friction element application and release whereby inertia torque disturbances in the torque output elements of the transmission are avoided.

    摘要翻译： 一种用于控制具有第一简单行星齿轮单元和第二复合行星齿轮单元的换档变速器的比率变化的方法，所述两个减速机串联设置，压力操作的摩擦元件用于在每个单独的行星齿轮单元和第二复合行星齿轮单元 的减速器建立比例变化。 比例的变化包括通过释放第一齿轮单元的反作用摩擦元件并通过施加第二摩擦元件来以非同步的方式锚固第二齿轮单元的反作用构件来升高第二齿轮单元的降档，以实现 无需摩擦元件施加和释放的精确匹配的一致的换档质量，从而避免了变速器的转矩输出元件中的惯性力矩干扰。

    Method of testing friction components for automatic transmissions
    5.
    发明授权
    Method of testing friction components for automatic transmissions 失效
    自动变速器摩擦部件的测试方法

    公开(公告)号：US06923049B2

    公开(公告)日：2005-08-02

    申请号：US10737319

    申请日：2003-12-16

    申请人： Yuji Fujii ,  Ted Duane Snyder ,  Gregory Michael Pietron ,  William Emil Tobler

    发明人： Yuji Fujii ,  Ted Duane Snyder ,  Gregory Michael Pietron ,  William Emil Tobler

    IPC分类号： G01M13/02 ,  G01M99/00

    CPC分类号： G01M13/022

    摘要： A method of testing a friction component for a transmission that has first and second parts. The first part of the friction component is attached to a drive shaft and the second part is attached to a grounding element. The first part of the friction component is rotated until the drive shaft and the first part of the friction component rotate at a target sliding speed Vtarget. An actuation force is applied to the friction component at a time t0. Operation of the motor drive is continued to maintain the speed of rotation of the drive shaft at Vtarget until a predetermined level of engagement torque Tth is obtained. The motor torque is then reduced to a predetermined level Tm. The sliding speed of the drive shaft is then decreased and the test is terminated when the sliding speed falls to zero.

    摘要翻译： 一种用于测试具有第一和第二部分的变速器的摩擦部件的方法。 摩擦部件的第一部分附接到驱动轴，第二部分附接到接地元件。 摩擦部件的第一部分被旋转直到驱动轴和摩擦部件的第一部分以目标滑动速度V <目标旋转。 在时间t 0 0时将致动力施加到摩擦部件。 继续进行电动机驱动的动作，将驱动轴的旋转速度维持在V目标上，直到得到规定的接合转矩T Sub为止。 然后马达扭矩减小到预定水平T m m。 然后驱动轴的滑动速度降低，并且当滑动速度降至零时测试结束。