汽车电子稳定系统制动增力辅助技术  

Brake force assistant technology for vehicle electronic stability control system

作　　者：靳立强[1] 田端洋 田浩 刘蒙蒙 JIN Li-qiang;TIAN Duan-yang;TIAN Hao;LIU Meng-meng(College of Automotive Engineering,Jilin University,Changchun 130022,China)

机构地区：[1]吉林大学汽车工程学院

出　　处：《吉林大学学报（工学版）》2019年第6期1764-1776,共13页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省自然科学基金项目（20170101208JC）

摘　　要：针对可能出现的由于驾驶员恐慌等因素造成的制动力不足,以及在长距离下坡时为防止车辆超速驾驶员操作负担增大的情况,利用Stateflow状态机理论与Matlab/Simulink联合建模的方法,设计了液压制动辅助(HBA)以及陡坡缓降控制(HDC)控制策略。通过试验最终选取制动踏板位移及其变化率作为识别参数以更好地识别驾驶员意图,同时根据牛顿第二运动定律设计坡道识别算法,并考虑到制动器高温失效的问题,建立温度模型。最后,进行离线仿真及硬件在环试验,结果均验证了控制策略的正确性。实车道路试验结果表明,本文所设计的HBA功能能够满足ECE标准,而HDC功能也能够保持车速在目标车速附近波动,说明本文控制策略能够达到较好的控制效果。Aiming at driver panic or other factors causing the lack of braking force and decreasing the driver′s braking operating burden when driving on a long ramp,HBA and HDC control strategy is carried out by Stateflow state machine theory and Matlab/Simulink.The brake pedal displacement and speed are selected as the identification parameters to better identify the driver intention.Meanwhile,the ramp recognition is designed by Newton′s second law.Considering the braking problem of high temperature failure,the temperature model is built.Based on the above,MIL and HIL are carried out,the results verify the correctness of the control strategy.In addition,road tests′results show the HBA function can meet the ECE standard and the HDC function can keep vehicle speed near the target speed,proving that the control strategy achieved good control effect.

关 键 词：车辆工程 制动增力辅助 液压制动辅助 陡坡缓降控制 

分 类 号：U463.53[机械工程—车辆工程]