Invention Grant
- Patent Title: Nine speed transmission with latching mechanism
- Patent Title (中): 九档变速箱带闭锁机构
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Application No.: US13921903Application Date: 2013-06-19
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Publication No.: US09074664B2Publication Date: 2015-07-07
- Inventor: Casie M. Bockenstette , Carlos E. Marin , Paul G. Otanez , Craig S. Ross
- Applicant: GM Global Technology Operations LLC
- 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 brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. The transmission also includes a transmission auto start/stop enabler which includes a latch mechanism. The latch mechanism readies one of the plurality of torque transmitting devices during an engine auto stop/start event or in preparation for a stop of the motor vehicle.
Public/Granted literature
- US20140378266A1 NINE SPEED TRANSMISSION WITH LATCHING MECHANISM Public/Granted day:2014-12-25
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