基于路面识别的汽车制动防抱死优化控制  

An Optimization Control of Automobile Anti-Lock Braking System Based on RoadCondition Identification

作　　者：王锋[1] 范小彬[1] 金柯[1] 孙元魁 

机构地区：[1]河南理工大学机械与动力工程学院,河南焦作454000

出　　处：《计算机仿真》2017年第3期155-160,共6页Computer Simulation

基　　金：基金项目:面向社会需求的车辆工程专业实践教学改革与实践(2015JG034)

摘　　要：汽车ABS在车辆制动过程中,能够有效缩短制动距离、避免出现车辆侧滑以及减少轮胎磨损等特殊优点,保证了车辆的制动性和行驶安全性。在现有ABS控制方法中,普遍存在路面识别算法精度低、实时性差,以及防抱死系统中存在高度非线性、时变性和参数不确定性等难题。为解决上述问题,提出了一种基于路面识别的ABS滑模变结构控制方法,基于"路面特征系数"法进行路面识别,动态地获取当前车辆最佳滑移率,并基于最佳滑移率对车辆ABS进行滑模变结构控制。仿真结果表明ABS具有很好的制动效果,并能够对当前车辆行驶路面做出准确识别。The vehicle with ABS can effectively shorten braking distance,prevent side slip,reduce tire wear,and so on during braking,which ensures the vehicle＇s braking perform and driving safety.In the paper,a new algorithm of ABS sliding mode variable structure control based on road condition identification was proposed.It distinguishes road conditions according to the feature coefficients of road surface,and takes the identified current vehicle optional slip as the goal of sliding mode variable structure control.The simulation results show that the ABS has a good braking effect,and can accurately identify the types of current Road Condition.

关 键 词：整车模型 滑模控制 路面识别 制动防抱死系统 

分 类 号：U467.1[机械工程—车辆工程]