基于路面辨识的主动避撞系统制动性能

doi:10.13229/j.cnki.jdxbgxb20160789

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (2): 407-414.doi: 10.13229/j.cnki.jdxbgxb20160789

基于路面辨识的主动避撞系统制动性能

袁朝春, 张龙飞, 陈龙, 何友国, 范兴根

江苏大学汽车与交通工程学院,江苏镇江 212013

收稿日期:2016-07-08 出版日期:2018-03-01 发布日期:2018-03-01
作者简介:袁朝春(1978-),男,副教授,博士. 研究方向:车辆主动安全及新能源汽车.E-mail:yuancc_78@163.com
基金资助:
国家自然科学基金项目(51305167,U1564201); 江苏省高校自然科学研究重大项目(16KJA580002); 江苏大学青年骨干教师培养工程项目(2012-ZBZZ-029); 江苏省“六大人才高峰”项目(2015-XNYQC-004)

Braking performance of active collision avoidance system based on road identification

YUAN Chao-chun, ZHANG Long-fei, CHEN Long, HE You-guo, FAN Xing-gen

School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China

Received:2016-07-08 Online:2018-03-01 Published:2018-03-01

摘要/Abstract

摘要： 为了避免路面差异给制动系统带来的困难,改善压力控制迟滞现象。本文设计了一套路面峰值附着系数辨识算法及单神经元PID压力控制器,并深入研究了路面对于制动性能的影响,比较了基于路面峰值附着系数的最大制动力与ABS最大强度制动的制动效果。通过Matlab/Simulink仿真验证了辨识算法的有效性,并将两种压力控制器进行了对比,再利用CarSim/Simulink联合仿真分析了不同路面附着条件下两种制动系统的制动性能。仿真结果表明,该辨识算法具有较高的精度,误差控制在5%左右;所设计的压力控制器响应迅速,超调量较小,且无稳态静差;随着路面附着条件的变差,ABS制动性能下降,而基于路面辨识的制动系统仍具有较好的制动效果,呈现明显的优势。

关键词: 车辆工程, 主动避撞, 路面辨识, 峰值附着系数, 制动性能

Abstract: In order to overcome the difficulties caused by the difference of road surface conditions to the braking system, and improve the control of pressure hysteresis, a road peak adhesion coefficient identification algorithm was proposed and a single neuron PID pressure controller was designed. The influence of the road surface on the braking performance was deeply studied. The maximum braking force based on peak adhesion coefficient and the maximum strength brake of ABS were compared. The effectiveness of the identification algorithm was verified by Matlab/Simulink simulation, and the two kinds of pressure controller were compared. The performances of the two braking systems under different road adhesion conditions were analyzed. Results show that the identification algorithm has higher precision that the error is within 5%. The designed controller has faster response, smaller overshoot and no static error. With the deterioration of road adhesion condition, the ABS braking performance is decreased, while the braking system based on road identification still has good braking effect, which shows obvious advantages.

Key words: vehicle engineering, active collision avoidance, road identification, peak adhesion coefficient, braking performance

中图分类号:

U461.3

袁朝春, 张龙飞, 陈龙, 何友国, 范兴根. 基于路面辨识的主动避撞系统制动性能[J]. 吉林大学学报(工学版), 2018, 48(2): 407-414.

YUAN Chao-chun, ZHANG Long-fei, CHEN Long, HE You-guo, FAN Xing-gen. Braking performance of active collision avoidance system based on road identification[J]. 吉林大学学报(工学版), 2018, 48(2): 407-414.

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基于路面辨识的主动避撞系统制动性能

Braking performance of active collision avoidance system based on road identification

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