Invention Grant
- Patent Title: Multi-speed transmission
- Patent Title (中): 多速传输
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Application No.: US13185346Application Date: 2011-07-18
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Publication No.: US08277354B2Publication Date: 2012-10-02
- Inventor: Andrew W. Phillips , Gregory Hukill , James M. Hart , Clinton E. Carey , Scott H. Wittkopp
- Applicant: Andrew W. Phillips , Gregory Hukill , James M. Hart , Clinton E. Carey , Scott H. Wittkopp
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F16H3/62
- IPC: F16H3/62

Abstract:
A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and a brake. The torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.
Public/Granted literature
- US20110275473A1 MULTI-SPEED TRANSMISSION Public/Granted day:2011-11-10
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