To reduce a drive loss of an oil pump, at high speed rotation, while ensuring a delivery pressure of the oil pump at a low speed rotation, in a driving gear for a vehicle having a motor generator functioning as a starter of an engine.
A control device of a driving gear for a vehicle comprises an engine 1, motor generator 2, transmission 4, clutch 31, planetary gear 30, engine-driven oil pump 51 and a motor generator-driven oil pump 52. When the engine is started, an engaging pressure of the clutch 31 is ensured by a delivery pressure of the motor generator-driven pump 52 and after the engine is started, at the time when a delivery pressure of the pump 51 is sufficiently generated by increasing an engine speed, the pump 52 is stopped, so as to prevent an unnecessary increase in the delivery pressure when the vehicle is in running at a high speed.
TSUZUKI SHIGEO
HARA TAKESHI
WATANABE MANABU
OMOTE KENJI
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