Anti-lock Braking Control Strategy for In-Wheel Motor Driven Electric Vehicles Combining Hydraulic and Regenerative Braking

Abstract

Anti-lock braking system is an important part of active safety control for electric vehicles. In this paper, a novel control strategy of anti-lock braking for in-wheel motor driven electric vehicles is proposed. Based on the analysis of the vehicle dynamic process, proportion-integral control is proposed to control the slip ratio of the wheel, and the braking force is distributed to hydraulic braking system and regenerative braking system according to their characteristics. Simulations have been carried out using Matlab/Simulink. Results showed that the coordinate control of hydraulic braking and regenerative braking can achieve good slip ratio control effect and energy recovery. The anti-lock braking performance of the vehicle has been enhanced.