Control device for vehicular drive system

A control device for a vehicular drive system which is arranged to transmit an output of an engine to a drive wheel of a vehicle and which comprises a switchable type transmission mechanism including (i) a power distributing mechanism switchable between a continuously-variable shifting state in which the power distributing mechanism is operable as an electrically controlled continuously variable transmission, and a step-variable shifting state in which the power distributing mechanism is operable as a step-variable transmission, and (ii) an automatic transmission, said control device comprising:

• a switching controller configured to control said power distributing mechanism selectively in one of said continuously-variable shifting state and said step-variable shifting state, on the basis of a condition of the vehicle;
• a shifting controller configured to control a shifting operation of said automatic transmission included in the switchable type transmission mechanism, on the basis of the condition of the vehicle;
• and
• an execution-timing controller configured to control said switching controller to sequentially execute a switching control of said power distributing mechanism and to control said shifting controller to sequentially execute a shifting control of said automatic transmission, so as to prevent an overlap control involving simultaneous execution of both said switching control and said shifting control, when the switching control of the power distributing mechanism and the shifting control of the automatic transmission are judged to overlap each other.