Control device

A control device that controls a vehicle drive device in which a rotary electric machine is provided in a power transfer path that connects between an internal combustion engine and wheels and in which a first engagement device is provided between the internal combustion engine and the rotary electric machine and a second engagement device is provided between the rotary electric machine and the wheels, wherein

• in performing starting control for the internal combustion engine in which a rotational speed of the internal combustion engine is raised using a rotational drive force of the rotary electric machine in the case where a starting request for the internal combustion engine is made with the first engagement device in a disengaged state and with the second engagement device in a direct engagement state,
• first transition control in which the first engagement device is caused to transition from the disengaged state to a slipping engagement state is started after the starting request for the internal combustion engine is made, rotational speed control in which the rotary electric machine is controlled such that a rotational speed of the rotary electric machine becomes a target rotational speed is started before the first engagement device transitions from the disengaged state to the slipping engagement state, the rotational speed control is terminated and torque control in which the rotary electric machine is controlled such that output torque of the rotary electric machine becomes target torque is started after the first engagement device transitions from the disengaged state to the slipping engagement state, and the second engagement device is caused to transition from a direct engagement state to a slipping engagement state after the torque control is started.