Patent ID: 8967351
Filing Date: 2015-03-03
Classification: F16D

Abstract:
1. A hydraulic control system for use in a transmission, the transmission having a torque transmitting device, the hydraulic control system comprising: a source of pressurized hydraulic fluid; a clutch apply circuit configured to selectively provide pressurized hydraulic fluid to a first side of the torque transmitting device to actuate the torque transmitting device; a compensator feed circuit configured to provide exhaust hydraulic fluid to a second side of the torque transmitting device to balance centrifugal forces originating in the clutch apply circuit; a lube oil supply valve in direct uninterruptible communication with the source of pressurized hydraulic fluid, and wherein the lube oil supply valve is configured to selectively provide hydraulic fluid from the source of pressurized hydraulic fluid to the compensator feed circuit; and wherein the clutch apply circuit is configured to selectively provide the exhaust hydraulic fluid to the compensator feed circuit.