Pressure control apparatus for a torque-transmitting mechanism
An engagement pressure control apparatus for a torque-transmitting mechanism in a transmission control apparatus includes a regulator valve and a boost valve. The regulator valve provides a controlled pressure rise to a torque-transmitting mechanism within the transmission during a shifting event, and the boost valve is effective to increase the fluid pressure from the regulator valve to the torque-transmitting mechanism when the shift event has been completed, thereby providing a high pressure at the torque-transmitting mechanism to prevent slipping.
General Motors Corporation
F F F
F16D F16D F16D
inventional inventional additional
Steven Patrick
Moorman