摘要
为了提高汽车的制动效能和行驶安全性,针对目前常用的汽车ABS控制方法,在没有考虑道路状况变化对汽车滑移率及减速度等参量变化的影响而容易引起汽车侧滑、甩尾等不良状况,提出了基于路面识别的汽车ABS滑模控制方法,该方法根据制动过程中的汽车滑移率及减速度来进行路面识别,动态地获取汽车最佳滑移率,并以此对汽车ABS进行滑模控制;然后以单轮整车制动模型为对象,利用MATLAB/Simulink软件对该控制方法进行计算机仿真实验分析;结果表明,与常用的汽车ABS逻辑门限值及无路面识别的滑模控制方法相比,该方法可以使汽车制动时间减少5%~12%,从而使汽车制动效能和行驶安全性得以提高。
In order to improve the vehicle's braking performance and safety,aiming at the current general control method that do not consider the road condition's effect on vehicle slip and longitudinal deceleration,etc.Based on the road identification technology,ABS' sliding-mode control method was researched,the method identify road conditions according to the change of vehicle's slip and longitudinal deceleration and take the identified vehicle optimal slip as the goal of sliding-mode control method;then analysis about the method's control effectiveness was made by modeling and simulation with MATLAB/Simulink;the result shows that the method can reduce braking time by 5%~12% comparing to only logic or sliding-mode control method that not consider optimal slip,so it improve the vehicle's braking performance and safety.
出处
《现代制造工程》
CSCD
北大核心
2011年第2期43-47,共5页
Modern Manufacturing Engineering
关键词
防抱死制动系统
路面识别
滑模控制
滑移率
Anti-lock Braking System(ABS)
road identification
sliding-mode
slip rate
作者简介
潘辉,硕士研究生,研究方向:车辆电子控制。
李礼夫,教授,博士生导师,研究方向:光电一体化,车辆控制、车辆性能测试与分析技术、故障诊断与信号分析。E—mail:pmlfli@seut.edu.cn