| 摘要 |
Disclosed is an oil pressure supply system of an automatic transmission for a vehicle. According to an embodiment of the present invention, the oil pressure supply system of an automatic transmission for a vehicle comprises: a low pressure oil pump which is driven by an engine, changes oil stored in an oil pan into low pressure oil, and discharges the low pressure oil to a first low pressure flow path; a high pressure oil pump which is driven by an electric motor, boosts the pressure of a part of the low pressure oil from the first low pressure flow path to high pressure, and discharges the high pressure oil to a first high pressure flow path; a low pressure regulator valve which controls the pressure of the oil while discharging a part of the oil supplied through the first low pressure flow path and supplies the oil to a low pressure unit through a second low pressure flow path; and a high pressure regulator valve which controls the pressure of the oil while recirculating a part of the oil supplied through the first high pressure flow path in the low pressure unit through a recirculation flow path according to the pressure of the oil or recirculating the oil in the low pressure unit through two recirculation flow paths and supplies the oil to a high pressure unit through a second high pressure flow path. |
