Control device

A control device that controls a drive device in which a first engagement device, a rotary electric machine, and a second engagement device are provided on a power transfer path connecting between an input member drivably coupled to an internal combustion engine and an output member drivably coupled to wheels and are arranged in this order from a side of the input member, the control device comprising:

• a loss torque estimation section that derives estimated loss torque, which is an estimated value of loss torque due to drag resistance of the first engagement device, with the first engagement device in a disengaged state;
• and
• a specific-slip hydraulic pressure control section that sets a hydraulic pressure to be supplied to the second engagement device such that a transfer torque capacity of the second engagement device becomes a capacity corresponding to estimated input torque, which is determined as a difference between output torque of the rotary electric machine and the estimated loss torque, in the case where specific slip control, in which the second engagement device is controlled to a slip state from a state with the first engagement device in the disengaged state and with the second engagement device in a completely engaged state, is executed.