Patent ID: 8663062

Claim:
A control device for controlling a vehicle drive device, the control device comprising: a rotary electric machine in a power transmission path connecting an internal combustion engine with wheels; a first friction engagement device between the internal combustion engine and the rotary electric machine; and a second friction engagement device between the rotary electric machine and the wheels, wherein the control device shifts the state of the first friction engagement device and the second friction engagement device from a state in which the first friction engagement device is in a disengaged state and the second friction engagement device is in a direct engagement state so that a driving force is transmitted between the rotary electric machine and the wheels, to a state in which the driving force is transmitted at least between the internal combustion engine and the wheels, by shifting the second friction engagement device from the direct engagement state to a slip engagement state and thereafter shifting the first friction engagement device from the disengaged state to an engaged state; after the state is changed, the control device shifts the second friction engagement device from the slip engagement state to the direct engagement state; in this operation, the control device performs control to gradually reduce a supply oil pressure to the second friction engagement device so as to shift the second friction engagement device from the direct engagement state to the slip engagement state, and when the second friction engagement device is determined to have started slipping, to increase the supply oil pressure to the second friction engagement device by a predetermined amount of hydraulic pressure relative to the supply oil pressure at the time of the determination of the start of slip.