基于目标滑转率自调节的电动汽车驱动防滑控制技术(续1)  

Acceleration Slip Regulation Control of Electric Vehicle Based on Target Slip Ratio of Self-regulation(Continued 1)

作　　者：郭文涛[1] 段敏[1] 李刚[1] 于倩 

机构地区：[1]辽宁工业大学汽车与交通工程学院 [2]大连装备制造职业技术学院

出　　处：《汽车工程师》2015年第7期39-41,共3页Automotive Engineer

基　　金：辽宁省教育厅项目(L2012217);辽宁省教育厅项目(L2013253)

摘　　要：针对电动汽车在低附着路面行驶时驱动轮滑转问题,对后轮独立驱动电动汽车进行驱动防滑控制分析。提出了基于目标滑转率自调节的驱动防滑控制方法,提高汽车在极限工况下汽车的稳定性。传统驱动防滑控制注重将目标滑转率控制在最优滑转率附近,但当车速较高时最优滑转率会损失横向附着力,从而带来严重的后果。所以文章主要研究在有路面识别的基础上,针对不同的时速段设置较为合理的目标滑转率,在保证汽车行驶安全的基础上调整动力性。基于Car Sim与Matlab/Simulink联合仿真试验对控制方法进行了验证。仿真试验结果表明:基于目标滑转率自调整的驱动防滑控制能显著提高汽车行驶稳定性。Aiming al the problem of the slip on driving wheel for EV under the condition of low adhesion rnad, ASR （Acceleration Slip Regulation） was researched for the RWID （Rear-Wheel Independent Drive） of EV. ASR control method hased on the target slip ratio of self regulation was proposed to improve vehicle stahility under the limiting driving condition. Traditional ASR control will foeus on the target slip ratio controlling near the optimal slip ratio. When the speed is high, the lateral adhesion is Iosl which will resuh in serious consequences. On the basis of the road identification, setting the available target slip ratio in the various speed range to improve the dyna,nics is described in this paper. ASR control method was verified hased on CarSim and Matlab/Simulink co-simulation in typical working condition. The simulation resuhs show that ASR based on the＇ target slip ratio of self regulatinn can significantly improve the driving stability of vehicle.

关 键 词：电动汽车 驱动防滑 目标滑转率 行驶安全 路面识别 

分 类 号：U469.72[机械工程—车辆工程]