Invention Grant
US08523729B2 Multi-speed transmission 有权
多速传输

Multi-speed transmission
Abstract:
A transmission includes an input and output member, two planetary gear set assemblies each having first, second, third, and fourth members, one interconnecting members continuously interconnecting a member of the first planetary gear set assembly with a member of the second planetary gear set assembly and six torque transmitting mechanisms selectively engageable to interconnect one of the first members, second members, third members, and fourth members with at least one of the input member and a stationary member. The torque transmitting mechanisms are selectively engageable in combinations of at least three to establish at least nine forward speed ratios and at least one reverse speed ratio between the input member and the output member.
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