基于故障估计的分布式驱动电动汽车容错控制方法Fault Estimation Based Fault-Tolerant Control of Distributed Drive Electric Vehicles
欧健;陈瑞楠;杨鄂川;张勇;
摘要(Abstract):
针对分布式驱动电动汽车驱动系统部分失效情况下,传统控制策略难以满足车辆纵、横向力需求且控制性能下降的问题,设计了一种基于故障估计的容错控制方法,讨论了驱动系统失效的情况,并建立了对应的车辆模型。在此基础上建立了用于估计当前失效因子的控制器,根据期望速度和前轮转角计算纵、横向力需求,对车辆剩余的驱动力进行再分配。CarSim/Simulink联合仿真结果表明,驱动系统部分失效时,所设计的容错控制方法能够对车辆的剩余驱动力进行再分配,提升故障车辆的安全性。
关键词(KeyWords): 电动汽车;分布式驱动;失效;容错控制;故障估计
基金项目(Foundation): 重庆市教委科学技术研究项目(KJ1600911);; 重庆市基础与前沿研究计划资助项目(cstc2015jcyjA60010)
作者(Authors): 欧健;陈瑞楠;杨鄂川;张勇;
DOI: 10.19620/j.cnki.1000-3703.20180819
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