Steuervorrichtung für eine Antriebsvorrichtung für ein Fahrzeug

摘要

A drive apparatus for vehicle is disclosed having a coupling device (switching clutch B0 or switching brake C0) operative to switch a transmission mechanism 10 between a continuously variable shifting state and a step-variable shifting state with both advantages including improved fuel consumption achieved by a transmission, enabled to electrically control a speed ratio, and increased power transmitting efficiency provided by a gear-type transmitting device in which drive power is mechanically transmitted. With the transmission mechanism 10, switching control means 50 allows a differential portion 11 to be maintained in the continuously variable shifting state or the differential portion 11 is preferentially placed in the continuously variable shifting state during a start-up of an engine. This allows an engine speed NE to rapidly increase beyond a given engine speed NE′ to immediately transit a given engine speed area NER, thereby suppressing the occurrence of vibrational noise of the vehicle during the start-up of the engine.