Vehicle includes an engine, a first 1MG (motor generator), and a second 2MG, a power split device of the planetary gear type connecting these, and a ECU (200). ECU (200) includes imbalance determination section (210), pressing the control unit (220). Imbalance determination unit (210) is temporarily determined whether the imbalance abnormality has occurred based on the air-fuel ratio A / F, when it is tentatively determined that the imbalance abnormality, controls the engine idle formally it determines whether imbalance abnormality has occurred based on the fluctuation of the engine rotational speed Ne Te. Pressing the control unit (220), at the time of vehicle stop idling, it is determined whether or not being formal determination process of determining imbalance, pressed from the 1MG running pressing if not formal determination process during the control torque Tp is generated, if a formal determination process in does not generate the pressing torque Tp from the 1MG without performing the control pressed.