Patent attributes
The present disclosure provides an oil pressure supply system of an automatic transmission for a vehicle. The system may include: a mechanical oil pump; a line regulator valve configured to stably control the oil pressure supplied through the line pressure path and to supply the oil pressure to a first path; a torque converter control valve configured to control the oil pressure supplied through the first path and to supply the oil pressure to a second path and a third path; a torque converter lockup clutch control valve; an electric oil pump; a switch valve disposed on the seventh path and configured to open and close the oil pressure supplied to an eighth path; and a flow control valve configured to control a portion of the oil pressure supplied to the eighth path and to supply the portion of the oil pressure to the cooling/lubricating unit through a ninth path.
