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    • 5. 发明申请
    • Method for Determining the Application Point of an Automatically Controlled Friction Clutch
    • 确定自动控制摩擦离合器应用点的方法
    • US20090131217A1
    • 2009-05-21
    • US11914030
    • 2006-05-05
    • Thomas JagerRoland Mair
    • Thomas JagerRoland Mair
    • B60W10/04B60W10/02B60W10/10
    • F16D48/06B60W2510/102F16D2500/30818F16D2500/5026F16D2500/50272F16D2500/70414Y10T477/6403Y10T477/6414Y10T477/753
    • The instant invention relates to a method for determining an application point of an automatically actuated friction clutch of an automatic mechanical transmission for a motor vehicle. According to it, after the pre-selection of a new gear, the clutch automatically separates, the activated gear is disengaged, the engine rotational speed is brought to a target value for the new gear and the clutch with higher advancing speed is advanced to an application point at which the transmission input shaft is precisely entrained. To determine the application point, the gradient of the time curve of the rotational speed of the transmission input shaft is monitored, an important change of the gradient that adjusts itself when reaching the application point is determined and the position of the clutch existing at this moment is defined as application point. The application point is preferably determined during downshifts, the time rotational speed curve of the transmission input shaft has between the slowdown and the re-acceleration a distinct minimum easily and accurately to be determined.
    • 本发明涉及一种用于确定机动车辆的自动机械变速器的自动致动的摩擦离合器的应用点的方法。 据此,在预先选择新的齿轮之后,离合器自动分离,启动齿轮脱离,将发动机转速设定为新齿轮的目标值,并且具有较高进给速度的离合器前进到 传动输入轴精确夹带的应用点。 为了确定应用点,监测变速器输入轴的转速的时间曲线的梯度,确定到达应用点时自身调整的梯度的重要变化,此时存在离合器的位置 被定义为应用点。 应用点优选地在降档期间确定,变速器输入轴的时间转速曲线在减速和重新加速之间具有明显的最小值,容易且准确地确定。