Sensor Fusion Based Estimation Technology of Vehicle Velocity in ABS System

摘要：

The precondition of realizing slip ratio based Anti-lock Braking System (ABS) is the accuracy measurement of vehicle velocity. Utilizing the wheel speed signals and vehicle body acceleration signal and considering the tire radius change and the accelerometer offset, the basic tool of sensor fusion approaches, Recursive Least Squares (RLS), is proposed to estimate the real-time vehicle velocity in ABS system. The trial results show that the difference between the estimated and the measured result is very small and can be used to calculate the slip ratio parameter of ABS control system. Meanwhile this algorithm is simply, with little amount of calculation, and easy to practice as well.

关键词： ABS Vehicle Velocity Sensor Fusion RLS Estimation

作者: Liu Guofu Zhang Qi Liu Bo Xie XiuFen

作者单位: Department of Instrument Science and Technology School of Mechanical Engineering and AutomationNational University of Defense Technology Changsha Hunan, 410073, China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）