Invention Grant
US09435403B2 Multi-speed transmission 有权
多速传输

Multi-speed transmission
Abstract:
A transmission gearing arrangement produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. One embodiment includes four simple planetary gear sets, three clutches, and three brakes. Another embodiment includes four axis transfer gear pairs, two simple planetary gear sets, five clutches, and one brake.
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