VEHICLE DRIVING SYSTEM

摘要

In a twin-clutch type transmission in which an electric motor is connected to one of transmission shafts, when downshifting is executed during EV running, a braking force is ensured by controlling in a cooperative fashion a regenerative brake and wheel brakes B1 to B4 so as to compensate for the loss of braking force during downshifting by the wheel brakes B1 to B4 or a braking force is ensured by making use of engine braking effects.