四轮独立驱动电动汽车EPS转向特性研究

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英文篇名：Study on EPS Steering Characteristics of Four-wheel Independent Drive Electric Vehicle 作者：刘志尚 ; 段敏 英文作者：Liu Zhishang;Duan Min;Automobile&Transportation Engineering College, Liaoning University of Technology; 关键词：电动汽车 ; 四轮独立驱动 ; 电动助力转向 英文关键词：Electric vehicles;;Four-wheel independent drive;;Electric power steering 中文刊名：SXQC 英文刊名：Automobile Applied Technology 机构：辽宁工业大学汽车与交通工程学院; 出版日期：2019-02-28 出版单位：汽车实用技术 年：2019 期：No.283 基金：辽宁省科学技术基金(201602369) 语种：中文; 页：SXQC201904021 页数：4 CN：04 ISSN：61-1394/TH 分类号：40-43

摘要

为更好地研究EPS对四轮独立驱动电动汽车转向特性的影响,运用Matlab/Simulink、Carsim建立了EPS联合仿真模型。提出基本助力控制、回正控制、阻尼控制、补偿控制策略,然后进行硬件在环试验确定其策略的有效性。试验表明:EPS控制下的四轮独立驱动电动汽车在低速行驶时使转向更加轻便;高速行驶时有更好的"路感"并提高了车辆的稳定性,从而整体改善汽车驾驶的操纵性能。
        In order to better study the influence of EPS on steering characteristics of four-wheel independent drive electric vehicles, the joint EPS simulation model was established by Matlab/Simulink and Carsim.The basic booster control,return-control, damping control and compensation control strategy are proposed, and then the effectiveness of the strategy is determined by the hardware test in the loop. The test shows that the four-wheel independent drive electric vehicle under EPS control makes the steering more portable at low speed.When driving at high speed, it has a better sense of road and improves the stability of the vehicle, thus improving the driving performance of the vehicle as a whole.

引文

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