基于滑移率变化模型的ABS汽车制动距离计算  

Braking Distance Calculation of ABS Automobiles Based on Variation Model of Wheel Slip Rate

作　　者：沈晨[1,2] 秦训鹏[1,2] 刘昌业 何东[1,2] 吴天昊[1,2] 

机构地区：[1]武汉理工大学汽车工程学院,湖北武汉430070 [2]现代汽车零部件技术湖北省重点实验室,湖北武汉430070 [3]上汽通用五菱汽车股份有限公司,广西柳州545007

出　　处：《武汉理工大学学报（信息与管理工程版）》2015年第6期865-869,共5页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：湖北省科技支撑计划基金资助项目(2012BAA08001);湖北省自然科学基金资助项目(2013CFA136)

摘　　要：为探讨新的ABS汽车制动距离计算方法,分析了汽车制动过程前、后车轮受力状况,建立了以各车轮滑移率余弦变化模型计算汽车制动距离的数学方法,在潮湿的混凝土路面上进行制动试验,应用Matlab软件仿真计算汽车在不同制动初速度下的制动距离。研究表明,仿真计算制动过程中车速和制动距离随时间的变化历程与试验测量值接近,制动时间和制动距离的计算值与测量值偏差较小,证明了计算模型的可靠性。In order to put forward a new ABS automobile braking distance calculation method,the forces conditions of front and rear wheels during automobile braking process were analyzed. And a mathematical method was established to calculate the braking distance based on the cosine change model of wheel slip rate. Braking tests were carried out on the wet concrete road surfaces; and the MATLAB was applied to calculate the automobile braking distance under different primary braking speed. Experimental result shows that on the wet concrete road surfaces,the changing time history of speed and braking distance calculated by simulation matches well with that measured during test; the deviation between calculated value and the test value of braking time and braking distance is small; therefore,the calculation model is reliable.

关 键 词：ABS汽车 滑移率 制动距离 制动时间 潮湿路面 

分 类 号：U462.32[机械工程—车辆工程]