Patent ID: 8271170

Claim:
A clutch control system for a vehicle having a hydraulic type clutch and an oil pressure supply system, the clutch being provided in a power transmission path between an engine and a drive wheel and being positioned into either a connected state or a disconnected state by supplying an oil pressure for controlling said clutch through an oil feed path of the oil pressure supply system, the clutch control system comprising: an ECU communicating with the oil pressure supply system and with a plurality of sensors which detect a throttle opening amount, an oil pressure in the oil feed path, an engine operating state, a vehicle speed, and a gear selection switch, and based on a signal from at least one of the plurality of sensors, the ECU changes the oil pressure in the oil feed path in order to change the state of said clutch between the connected state and the disconnected state, wherein said oil pressure for controlling said clutch is maintained at a predetermined stand-by oil pressure (P 1 ) when said clutch is in the disconnected state; said oil pressure is increased from the stand-by oil pressure (P 1 ) to a predetermined connection oil pressure (P 2 ) when said clutch is in the connected state; and at a time of bringing said clutch from said connected state to the disconnected state, said oil pressure is lowered to an oil pressure (P 3 ) below said stand-by oil pressure (P 1 ), and is thereafter increased again to said stand-by oil pressure (P 1 ), wherein the pressure (P 2 )>the pressure (P 1 )>the pressure (P 3 )>0.