Invention Grant
- Patent Title: Transmission having ten or more speeds
- Patent Title (中): 传输具有十个或更多的速度
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Application No.: US12208995Application Date: 2008-09-11
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Publication No.: US07993237B2Publication Date: 2011-08-09
- Inventor: Scott H. Wittkopp , Clinton E. Carey , James M. Hart , Andrew W. Phillips
- Applicant: Scott H. Wittkopp , Clinton E. Carey , James M. Hart , Andrew W. Phillips
- 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 may include clutches and brakes. Moreover, the torque transmitting devices are selectively engageable in combinations of at least four to establish at least ten forward speed ratios and at least one reverse speed ratio between the input member and the output member.
Public/Granted literature
- US20090124448A1 TRANSMISSION HAVING TEN OR MORE SPEEDS Public/Granted day:2009-05-14
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