乘用车横向稳定性控制联合仿真  

Joint Simulation of Lateral Stability Control for Passenger Car

作　　者：吴刚院 刘丹[1] 陈娟娟 Wu Gangyuan;Liu Dan;Chen Juanjuan(Chang’an University, Xi’an 710064;Research Institute of Highway Ministry of Transport, Beijing 10088)

机构地区：[1]长安大学,西安710064 [2]交通运输部公路科学研究院,北京100088

出　　处：《汽车技术》2018年第3期30-35,共6页Automobile Technology

基　　金：交通运输行业重点实验室对外开放研究课题(KFKT2015-07)

摘　　要：采用上、下两层控制器进行乘用车的横向稳定性控制,上层控制器以理想的横摆角速度与质心侧偏角为控制目标,利用PID控制策略得出车辆稳定所需的横摆力矩。下层控制器采用模糊控制策略得出控制阀值,根据阀值进行控制决策,最后采用单轮和单侧车轮两种控制方式进行制动力分配。基于搭建的CarSim与Matlab/Simulink联合仿真环境,选取典型试验工况进行仿真分析。仿真结果表明,算法可以有效改善恶劣条件下乘用车的横向稳定性。Passenger vehicle lateral stability control was conducted with two layer controller,in which the upper controller uses a desired yaw rate and sideslip angle as the control target,using the PID control strategy to obtain the required yaw moment for vehicle stability.The lower controller uses fuzzy control strategy to get the control threshold,and makes control decision according to the threshold,and finally uses single wheel and side wheels for braking force distribution.Based on the joint simulation environment of CarSim and MATLAB/Simulink,the simulation analysis of vehicle lateral stability was conduted under typical test conditions.The results show that this algorithm can effectively improve passenger car lateral stability under harsh conditions.

关 键 词：乘用车 横向稳定性控制 模糊控制 横摆角速度 质心侧偏角 联合仿真 

分 类 号：U461.6[机械工程—车辆工程]