| abstract |
(57) [Problem] To determine clutch engagement failure of a hybrid vehicle and to control an operation mode based on the failure, more appropriate and detailed control is required. SOLUTION: A torque is applied to a front drive motor 34 to such an extent that the vehicle does not move, and a CVT 3 before and after the torque is applied. 6, the rotation state of the input shaft is detected, and based on the detection result, The engagement failure of the C1 clutch 94 is determined, and the operation mode is controlled based on the determination result. |