HYDRAULIC CONTROL APPARATUS OF CONTINUOUSLY VARIABLE TRANSMISSION ON HYBRID VEHICLE

摘要

PURPOSE: A continuously variable automatic transmission hydraulic control apparatus of a hybrid vehicle is provided to improve the efficiency of a continuously variable automatic transmission by automatically securing a pulley pressure and solenoid valve supplying pressure which are necessary for rapid restart of a vehicle. CONSTITUTION: A continuously variable automatic transmission hydraulic control apparatus comprises a D-N control valve(7). The fluid pressure from a line regulator valve(1) is supplied to a solenoid feed valve(5) through a second regulator valve(3) according to the change of clutch lubricant pressure and driving pulley control pressure about follower control pressure. The fluid pressure from the line regulator valve is directly supplied to the solenoid feed valve. The D-N control valve converts the state of the fluid pressure supplied to the solenoid feed valve through the second regulator valve and the state of the fluid pressure directly supplied to the solenoid feed valve.