Antriebssteuerungsvorrichtung für ein Hybridfahrzeug

摘要

Due to the reduction of a discharge amount of a mechanical oil pump by a lowering of the idling rotation speed, a slip in a hydraulic power transmission apparatus and a blow up of an electric motor for running due to a delay of the rising of the oil pressure upon the sudden start and the like are prevented. While avoiding the slip and the blow up, the idling rotation speed is lowered so as to make the engine noise small. When the return determination from the idling state is performed based on the shift operation from P to D, at step S5, a torque TMG2 of a second motor/generator MG2 is temporarily restricted. As a result, upon the sudden start from the idling state, even when the rising of the oil pressure delays, the second brake B2 engaged upon the starting is prevented from slipping, and the second motor/generator MG2 is prevented from blowing up. As a result, while avoiding the slip of the second brake B2 and the blow up of the second motor/generator MG2 due to the hydraulic response delay, an idling rotation speed N Eidl is lowered so that the engine noise can be reduced.