Hydraulic control systems for dual clutch transmissions

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United States of America Patent

PATENT NO 8356529
APP PUB NO 20110056316A1
SERIAL NO

12556477

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Abstract

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The present invention comprehends a plurality of embodiments of a hydraulic control system for various configurations of dual clutch transmissions. The hydraulic control systems all include a regulated source of pressurized hydraulic fluid including an electric pump, a filter and an accumulator, a pair of pressure control valves and a branching hydraulic circuit including pressure or flow control valves, spool or logic valves and two position valves which collectively supply and exhaust hydraulic fluid from a plurality of shift actuators. The actuators are connected to shift rails which include shift forks and are slidable to engage synchronizers and positive clutches associated with the various gear ratios.

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Patent Owner(s)

  • GM GLOBAL TECHNOLOGY OPERATIONS LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lundberg, Philip C Keego Harbor, US 55 880
Olson, Bret M Whitelake, US 78 1612

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