汽车防抱制动系统车速估计方法的初步研究  

A Preliminary Study on the Estimation of Vehicle Speed in the Anti-lock Braking System

作　　者：刘国福[1] 张屺[1] 王跃科[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：《汽车工程》2004年第6期723-725,738,共4页Automotive Engineering

摘　　要：实现基于滑移率控制的汽车防抱制动系统的前提是车速的准确测量。为减少微控制器的计算量和增加系统可靠性 ,利用汽车轮速信号和车身加速度信号 ,建立了估计车速的线性模型 ,提出了模型中系数的基于最小二乘递推算法的计算方法。试验结果验证了该方法的可行性和有效性。The prerequisite of re alizing slip ratio based anti-lock braking system(ABS) is the accurat e measurement of vehicle speed.In order to reduce the calculation ef fort for micro-controller and enha nce the reliability of system,a li near model for estimating vehicle speed is set up by using the signa ls of wheel velocities and vehicle body acceleration,and the calculat ion method of coefficients in the model is proposed,basing on the re cursive least squares(RLS) algorit hm.The test results verify the fea sibility and effectiveness of the method.

关 键 词：防抱制动系统 车速 汽车 滑移率 车身 车轮 信号 增加 初步研究 有效性 

分 类 号：U463[机械工程—车辆工程] U469[交通运输工程—载运工具运用工程]