POWER PLANT OF A VEHICLE

The invention relates to a powertrain group of a vehicle (20) comprising first (10) and second electric motors, a motor-reducer system having an output shaft (5), the motor shafts (6) of the first (10) and second electric motors being mechanically connected to the output shaft (5) of the motor-reducer system via respectively two coupling devices (16, 17, 8), and further comprising first (10) and second accessories (10) driven by the first electric motor (2) and a third accessory (10) driven by the second electric motor. Furthermore, it comprises a front wheel set (23), a rear wheel set (24), a thermal engine (22) at the front of the vehicle to drive the front wheel set (23), the electric motors (2, 3) and the motor-reducer system (4) being at the rear of the vehicle (20) to drive the rear wheel set (24).