DUAL-MOTOR POWER DRIVING DEVICE AND TORQUE DISTRIBUTION CONTROL METHOD THEREFOR

摘要

A dual-motor power driving device and a torque distribution control method therefor. The power driving device comprises a dual-planet row (17), a main motor (1), an auxiliary motor (2), a main input shaft (3), an auxiliary input shaft (4), an output shaft (5) and several clutches. The main motor (1) is connected to the dual-planet row (17) by means of the main input shaft (3), and the auxiliary motor (2) is connected to the dual-planet row (17) by means of the auxiliary input shaft (4). The dual-planet row (17) employs a Simpson-type structure. The present power driving device-based torque distribution control method adjusts the working point of the motor and reasonably performs energy management according to the required power of a vehicle. At the same time, the present method may achieve single-motor braking energy recovery and dual-motor braking energy recovery under different braking forces.