Invention Application
- Patent Title: MULTI-SPEED TRANSMISSION
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Application No.: US13902071Application Date: 2013-05-24
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Publication No.: US20130260944A1Publication Date: 2013-10-03
- Inventor: Edward W. Mellet , Scott H. Wittkopp , James M. Hart , Andrew W. Phillips
- Applicant: GM Global Technology Operations LLC
- Main IPC: F16H3/62
- IPC: F16H3/62

Abstract:
A transmission includes an input and output member, four planetary gear sets each having first, second and third members, five interconnecting members continuously interconnecting members of the four planetary gear sets and six torque transmitting mechanisms selectively engageable to interconnect one of the first members, second members, and third members with at least one of another of the first members, second members, third members, and a stationary member. The torque transmitting mechanisms are selectively engageable in combinations of at least three 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
- US09074663B2 Multi-speed transmission Public/Granted day:2015-07-07
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