Invention Grant
- Patent Title: Eight speed automatic transmission
- Patent Title (中): 八速自动变速器
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Application No.: US13447934Application Date: 2012-04-16
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Publication No.: US08435152B2Publication Date: 2013-05-07
- Inventor: Clinton E. Carey , James M. Hart , Andrew W. Phillips , Scott H. Wittkopp
- Applicant: Clinton E. Carey , James M. Hart , Andrew W. Phillips , 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:
An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.
Public/Granted literature
- US20120202637A1 EIGHT SPEED AUTOMATIC TRANSMISSION Public/Granted day:2012-08-09
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