场地电动车EPS系统助力特性曲线设计  

Design of Power Assist Characteristic Curve of EPS System for Electric Vehicle in Special Venues

作　　者：丁凡 陈金鹤 许明 胡杰 康军 李建文 DING Fan;CHEN Jinhe;XU Ming;HU Jie;KANG Jun;LI Jianwen(School of Electrical Engineering and Automation,Tianjin University of Technology,Tianjin 300382;National Automotive Electrical Parts Quality Supervision and Testing Center,Wenzhou 325204;Tianjin Zhongyi Electric Vehicle Co.,Ltd.,Tianjin 301508)

机构地区：[1]天津理工大学电气工程与自动化学院,天津300384 [2]国家汽车电气零部件质量监督检测中心,温州325204 [3]天津中宜电动车有限公司,天津301508

出　　处：《计算机与数字工程》2022年第11期2594-2598,2610,共6页Computer & Digital Engineering

摘　　要：介绍了电动助力转向系统的工作原理并建立其动力学模型,针对特殊场地电动车进行助力特性分析,对不同类型的助力特性曲线进行对比分析,选择适合实验车辆的曲线类型,通过计算结合实车试验数据,利用Matlab软件进行曲线拟合,设计出适合场地电动车助力特性曲线。使用结果表明:设计出的助力特性曲线符合特殊场地电动车的实际应用要求。This paper introduces the working principle of the electric power steering system and establishes its dynamic model,analyzes the power assist characteristics of low-speed electric vehicles in special places,and designs the power assist characteristic curves based on the polyfit function of Matlab and combined with the real vehicle experiments.The results show that the designed power assist characteristic curve meets the practical application requirements of low-speed electric vehicles in special venues.

关 键 词：场地电动车 EPS 曲线拟合 助力特性 

分 类 号：U463.4[机械工程—车辆工程]