基于逻辑门限值的汽车ABS控制策略与试验研究  

Study on control strategy and experiment of automobile ABS based on logic threshold value

作　　者：李刚[1] 王野[1] 赵德阳[1] 

机构地区：[1]辽宁工业大学汽车与交通工程学院,锦州121001

出　　处：《现代制造工程》2017年第7期12-16,共5页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51675257);国家自然科学基金青年基金项目(51305190)

摘　　要：研究了一种考虑汽车前、后轴轴荷不同和制动时轴荷转移的汽车防抱死制动系统(ABS)逻辑门限值控制策略。该控制策略以车轮滑移率为主要控制目标,以车轮角加速度为辅助控制目标,通过仿真试验确定前、后车轮不同的最佳滑移率范围,采用前轴制动压力高选和后轴制动压力低选控制方式,提高汽车在低附着系数、对开路面的制动性能。编写控制策略程序,应用驾驶模拟器硬件在环制动试验台进行低附着系数、对开路面紧急制动工况验证。试验结果表明:控制策略具有良好的实时性,缩短了制动距离,提高了汽车制动时的方向稳定性。The ABS logic threshold control strategy considering different axle load of front and rear axle as well as braking axle weight transfer is studied. The control of wheel sliding rate is as the main control objective and the control of the wheel angular acceleration is as the auxiliary control objective. The different optimal slip rate range of front and rear wheels are determined through the simulation experiments. Vehicle braking performance is improved in the low adhesion and split road by using the con- trol mode, in which the high brake pressure of the front axle is selected and the low brake pressure of the rear axle is selected. Writing the control strategy program and the control strategy is verified based on driving simulator hardware in loop brake test bench in emergency braking condition of low adhesion and split road. The results show that the control strategy has a good real- time performance and shorten the braking distance, improves the directional stability of the car when braking.

关 键 词：逻辑门限值控制策略 滑移率 硬件在环制动试验台 对开路面 

分 类 号：U461.3[机械工程—车辆工程]