Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of pressure and flow control devices in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the pressure control solenoids and the flow control solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.
Type:
Application
Filed:
November 11, 2010
Publication date:
June 9, 2011
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONAS, INC.
Inventors:
John R. Czoykowski, Chinar S. Ghike, James D. Hendrickson, Philip C. Lundberg, Steven P. Moorman, Bret M. Olson