POWER TRANSMISSION APPARATUS OF VEHICLE

摘要

In a power transmission apparatus of a vehicle having a hydraulic pressure type clutch capable of switching to transmit and cut power between a crankshaft of an engine and driving wheels and a clutch control valve for controlling hydraulic pressure operated to the clutch, the operational characteristic of the hydraulic pressure clutch is made variable and an adjustor mechanism for compensating for a wear amount of clutch plates is dispensed with. A clutch control valve includes a valve housing having an input port connected to a hydraulic pump and an output port connected to a clutch, a spool capable of switching to communicate and cut the input port and the output port and slidably fitted to the valve housing and a linear solenoid coaxially connected to the spool and is constituted to be capable of controlling output hydraulic pressure from the output port to a value in accordance with input current of the linear solenoid.