Study on Electro-mechanical Combined Braking Control Strategy for 4WD Electric Vehicle with Two Motors

In the braking process of double-motor electric vehicle, Both front and rear axles can both output regenerative braking force to recover braking energy, In order to study the influence of the ratio of braking force distribution between front and rear axes on the braking energy recovery, In this paper, three different braking force distribution schemes are designed on the premise of ensuring the braking stability of road surface with low adhesion coefficient, and through AVL-Cruise and MATLAB-Simulink to do the Co-simulation. Simulation results underCLTC-P condition show that, the energy recovery of the f curve control strategy, which maximizes the front axle braking force ratio, is higher than that of the other two control strategies, reaching 62.25%.