APPARATUS AND A METHOD FOR CONTROLLING AN OIL PRESSURE BETWEEN AN OIL PUMP AND A CLUTCH OF A HYBRID VEHICLE, CAPABLE OF PREVENTING OVERLOAD DRIVE OF AN ELECTRIC-POWERED OIL PUMP AND OBTAINING IMPROVING FUEL EFFICIENCY

摘要

PURPOSE: An apparatus and a method for controlling an oil pressure between an oil pump and a clutch of a hybrid vehicle are provided to prevent the oil pressure of the clutch from getting fallen by mounting a supporting oil pressure control valve on the output of a mechanical oil pump.;CONSTITUTION: An apparatus for controlling an oil pressure between an oil pump and a clutch of the hybrid comprises an engine, a second motor, and a transmission which are directly connected to one axis. The engine and the second motor are connected to transfer power through the clutch. The apparatus includes an electric-powered oil pump supplying the oil pump to the clutch and a mechanical oil pump which is directly connected to a driving shaft of the second motor. A supporting oil pressure control valve is installed on an oil pressure line of the mechanical oil pump and a main oil pressure control valve.;COPYRIGHT KIPO 2010