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

摘要： 应用 MATLAB / Simulink 软件，先后建立汽车防抱死制动系统的各个子系统的数学模 型，搭建逻辑门限制控制和比例-积分-微分控制策略，再将各个子系统模型和控制策略结合构 成了防抱死制动系统的仿真模型，对汽车防抱死制动系统进行研究。在输入所需参数后，选 取初始车速 20 m/s，目标滑移率 0.2 为仿真工况，通过开关的转换，分别进行了有无防抱死制 动系统对比仿真分析和采用逻辑门限值和比例-积分-微分控制防抱死制动系统效果对比。结果 表明，装有防抱死制动系统的汽车的制动性能更优，两种制动方式中比例-积分-微分控制防抱 死制动系统效果更佳。

关键词: 防抱死制动系统；PID 控制；逻辑门限值控制；仿真分析