关键词: 防抱死制动系统；PID 控制；逻辑门限值控制；仿真分析

Abstract: Using Matlab/Simulink software, the mathematical models of each subsystem of automobile Anti-lock Braking System (ABS) are established successively, and the logic gate limit control and (Proportional Integral Derivative, PID) control strategies are built. Then, the simulation model of ABS is formed by combining each subsystem model and control strategy, and the automobile ABS is studied. After entering the required parameters, the initial vehicle speed of 20 m/s and the target slip ratio of 0.2 are selected as the simulation conditions. Through the switching of the switch, the comparative simulation analysis with and without ABS and the comparison of the effect of using logic threshold and PID to control ABS are carried out respectively. The results show that the braking performance of the vehicle equipped with ABS is better, and the effect of PID control of ABS is better.

Key words: Anti-lock braking system; PID control; Logic threshold control; Simulation analysis