基于ABS轮速的车轮半径补偿方法  

ABS wheel speed-based wheel radius compensation method

作　　者：初亮[1] 王彦波[1] 祁富伟[1] 蔡健伟[1] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,吉林长春130025

出　　处：《华中科技大学学报（自然科学版）》2012年第11期129-132,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家国际科技合作专项基金资助项目(2010DFB70360)

摘　　要：通过监测车辆行驶时的4个轮速的差异以及轮速与参考车速的关系,判断车辆的行驶状况和轮胎欠压状况,排除车辆转弯等短时间的载荷转移对车轮滚动半径的影响,并求出车轮半径的补偿因子,实时修正车轮的有效滚动半径,提高车轮速度的计算准度,保证了车轮防抱死系统对车轮半径变化的适应性,同时可间接地对单个欠压的轮胎进行预警.通过实车试验对比了轮速半径补偿前后的车轮防抱死的控制效果,证明了该方法可行性和有效性.By monitoring differences of the four wheel speed and the relationship between vehicle ref- erence velocity and wheel speed while a vehicle moves, judgment of the vehicle driving conditions and tires＇ pressure status was made to rule out the influence to wheel radius caused by the transient load transfer like curve driving. The compensation factors for wheel radius were calculated to revise the ef- fective rolling radius of four wheels and improve wheel speed calculation accuracy, ensuring the adapt- ability of wheel antilock brake systems to the changeful wheel radius. Meanwhile this compensation method can give an early warning of a single under-pressure tire. By comparing wheel anti-lock per- formance with and without wheel radius compensation, feasibility and effectiveness of wheel radius compensation were proved.

关 键 词：车轮 轮胎变形 车轮半径补偿方法 轮速 制动防抱死系统 

分 类 号：U467.1[机械工程—车辆工程]