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发明公开
CN105673785A 多挡位自动变速器 无效 - 撤回

多挡位自动变速器
摘要：
本发明提供了一种多挡位自动变速器，其可以包括：第一行星齿轮组，其连接到变速器输入轴；第二行星齿轮组，其连接到第一行星齿轮组；第三行星齿轮组，其连接到第二行星齿轮组；第四行星齿轮组，其在第三行星齿轮组和变速器输出轴之间接合；以及六个摩擦元件，其配置为选择性地接合和脱开在第一至第四行星齿轮组之间的接合，以便在变速器输入轴和变速器输出轴之间产生各个传动比，从而实现多个挡位，其中，六个摩擦元件中的至少三个在每个挡位选择性地进行接合和操作。通过配置多个行星齿轮组和多个摩擦元件来有效地实现10个或更多前进挡位和1个倒车挡位，以便获得更高的传动效率。
摘要（英）：

A multi-speed automatic transmission may include a first planetary gear set connected to a transmission input shaft, a second planetary gear set connected to the first planetary gear set, a third planetary gear set connected to the second planetary gear set, a fourth planetary gear set connected between the third planetary gear set and a transmission output shaft, and six friction elements configured to selectively couple and decouple a connection among the first to fourth planetary gear sets to generate various gear ratios between the transmission input shaft and the transmission output shaft to implement a plurality of gear stages, in which at least three of the six friction elements are selectively coupled and operated at each gear stage.

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