Abstract
Anti-lock braking system (ABS) is an active safety system equipped on vehicles as a mandatory standard for modern cars today. The system detects that the wheel is locked and will adjust the brake pressure to prevent the wheel from locking. The main objective of ABS control is to provide the required braking torque value to achieve optimum wheel slip speed. This paper analyzes the working mechanism of the ABS braking system, builds a physical model ¼ and applies Matlab - Simulink software to simulate the dynamics of the braking system. The research results of the article compared and evaluated the performance of the ABS braking system when using two different control algorithms, Fuzzy and PID. Based on the analysis of simulation results, it shows that controlling vehicle speed and wheel angular speed with Fuzzy Logic controller will give better performance than PID controller on both criteria of reducing stopping distance and the required braking time.
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