Optimization of External Characteristic Parameters of Multiple Motors for Electric Vehicles Based on Optimal Torque Distribution Coefficient

In this paper, an optimization method based on optimal torque distribution coefficient is proposed for the optimization of external characteristic parameters of electric vehicles driven by multiple motors. Firstly, according to the performance requirements of a dual-motor driven electric vehicle, the original motor was matched. Then the law of motor efficiency Map changing with external parameters is described. An optimization algorithm is used to optimize the torque distribution coefficient of the electric vehicle in all working conditions. Particle swarm optimization algorithm is used to optimize the external characteristic parameters of the two motors. Finally, a vehicle Simulink simulation platform is built to verify the correctness of the optimization results and the effectiveness of the optimization ideas.