Invention Grant
- Patent Title: Nine speed automatic transmission
- Patent Title (中): 九速自动变速器
-
Application No.: US13313827Application Date: 2011-12-07
-
Publication No.: US08496558B2Publication Date: 2013-07-30
- Inventor: Scott H. Wittkopp , James M. Hart , Elizabeth I. Wooden , Daryl A. Wilton
- Applicant: Scott H. Wittkopp , James M. Hart , Elizabeth I. Wooden , Daryl A. Wilton
- 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 includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a dry launch clutch. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes.
Public/Granted literature
- US20120178582A1 NINE SPEED AUTOMATIC TRANSMISSION Public/Granted day:2012-07-12
Information query
