基于不均衡转向特性的车轮滑移率估算方法  

Wheel Slip Estimation Based on Unbalanced Steering

作　　者：孙晖云[1] 陈广彦[1] 

机构地区：[1]长城汽车股份有限公司技术中心,河北保定071000

出　　处：《机械工程师》2015年第8期159-161,共3页Mechanical Engineer

摘　　要：在已知车速基础上,对四个轮心的纵向速度分别推导,考虑了转向桥与非转向桥的区别。为提高滑移率精度,对稳态和瞬态转向进行修正,充分考虑转向运动传递的不均衡性,得到了一定精度的滑移率数值,为滑移率估算提供了一种实用性很强的方法。This paper aims for improving wheel slip which is an important estimate of automotive control systems. After vehicle velocity estimation, the four wheel center＇s velocities are estimated, considering the difference between steering axle and non steering axle. In order to get a better result,the estimation is modified in steady steering state and transient steering state. While estimating, the unbalance of steering transfer is mature. At last,a precise wheel slip is gained. Abovementioned method is very practical for wheel slip estimation.

关 键 词：滑移率 稳态 瞬态 不均衡 

分 类 号：U461.6[机械工程—车辆工程]