ABS系统基于数据融合技术的车速估计方法  

Sensor Fusion Based Estimation Technology of Vehicle Velocity in ABS System

作　　者：刘国福[1] 张屺[1] 王跃科[1] 周婷婷[1] 

机构地区：[1]国防科技大学机械电子工程与仪器系,长沙410073

出　　处：《仪器仪表学报》2004年第z1期91-93,共3页Chinese Journal of Scientific Instrument

摘　　要：实现基于滑移率控制的汽车防抱制动系统(ABS)的前提是车速的准确测量。利用汽车轮速信号和车身加速度信号,考虑制动过程中车轮半径的变化和加速度传感器的偏移误差,应用数据融合技术中的基本方法—最小二乘递推算法,在ABS系统中实现了车速的实时估计。试验结果验证了该方法的可行性和有效性。The precondition of realizing slip ratio based anti-lock braking system (ABS) is the accurate 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 verify the feasibility and validity of this method.

关 键 词：防抱制动系统 车 速 数据融合 最小二乘递推算法 估 计 

分 类 号：TH7-55[机械工程—仪器科学与技术]