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发明公开
CN101280825A 传动系统及实现用于传动系统的降档变速的方法 无效 - 撤回

传动系统及实现用于传动系统的降档变速的方法
摘要：
本发明提供一种传动系统及实现用于传动系统的降档变速的方法。该传动系统包括第一和第二旋转轴，以及选择器组件，所述选择器组件包括致动器组件以及第一和第二组接合元件，选择器组件配置成当传递驱动力时，第一和第二组接合元件中的一组在接合齿轮和第一轴之间传递扭矩，另一组接合元件则处于空载状态，其中，致动器组件被设置成使用空载的一组接合元件来锁住用于与第一轴一起转动的未接合的齿轮，实现齿轮变速，其中，当进行降档变速时，存在短暂的扭矩中断，使得在变速之前脱离。所述方法包括：在传递过程中短暂地中断扭矩，以在降档变速前允许脱离；以及选择未接合的齿轮。
摘要（英）：

A transmission system including first and second rotatable shafts, and means for transferring drive from one of the shafts to the other shaft including first and second gear wheels each rotatably mounted on the first shaft and having drive formations formed thereon, a selector assembly for selectively transmitting torque between the -first shaft and the first gear wheel and between the first shaft and the second gear wheel, wherein the selector assembly includes an actuator assembly and first and second sets of engagement members that are moveable into and out of engagement with the first and second gear wheels independently of each other, said selector assembly being arranged such that when a driving force is transmitted, one of the first and second sets of engagement members drivingly engages the engaged gearwheel, and. the other set of engagement members is then in an unloaded condition, wherein the actuator assembly is arranged to move the unloaded set of engagement members into driving engagement with the unengaged gear wheel to effect a gear change.

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