| 摘要 |
Provided is an oil supply device (1) comprising: a main pump (5) which is driven by an engine (E) and is capable of supplying oil to an automatic transmission mechanism (6), as well as supplying oil to a hydraulic control valve (7); an electric motor (M); a subsidiary pump (11) which is driven by the electric motor (M) and raises the pressure of a portion of the oil discharged from the main pump (5) and supplies the oil to the hydraulic control valve (7); and a motor controller (12) which controls driving of the electric motor (M) on the basis of the pressure of the oil supplied to the automatic transmission mechanism (6). The motor controller (12) implements control to drive the subsidiary pump (11) by the electric motor (M) so as to raise the pressure of a portion of the oil discharged from the main pump (5) to a prescribed pressure or above and supply the oil to the hydraulic control valve (7) when the pressure of the oil supplied to the automatic transmission mechanism (6) is less than the prescribed pressure, and to stop the driving of the subsidiary pump (11) when the pressure of the oil supplied to the automatic transmission mechanism (6) is equal to or greater than the prescribed pressure. |
