Research on the Automotive ABS/EBD Control System

Antilock braking system (ABS) can prevent automobile wheels from locking-up and improve braking performance while ensuring the vehicle's steering performance and operating stability. Electronic brake force distribution (EBD) can automatically adjust the braking force distribution scale among the wheels, which can make the rear wheel slip ratio track the front wheel slip ratio. In order to improve the braking performance, ABS control and EBD control are combined in this paper. ABS control system is designed based on sliding mode control and EBD control system is designed based on fuzzy control. Two working conditions which are dry asphalt road and wet asphalt road arc used to simulate the ABS/EBD control system, the simulation results show that the control method can make full use of the respective advantages of ABS and EBD systems. The braking performance of automobile can be improved greatly.