直流无刷电动机的汽车电动助力转向系统控制策略研究  

Research on control strategy of the vehicle electric power steering system based on brushless DC motor

作　　者：何泽刚[1] 申荣卫[1] 谢康[1] 冯丽娜[1] 

机构地区：[1]天津职业技术师范大学汽车与交通学院,天津300222

出　　处：《现代制造工程》2015年第2期57-61,共5页Modern Manufacturing Engineering

基　　金：天津市科技支撑计划项目(12ZCZDGX04400);天津职业技术师范大学研究生创新基金资助项目(YC13-16)

摘　　要：介绍了管柱助力式电动助力转向系统的组成与工作原理,设计了基于直流无刷电动机的电动助力转向系统控制策略及助力特性。在对直流无刷电动机结构与工作方式深入研究的基础上,设计了助力电动机的转矩控制策略。开发了基于Freescale微控制器MC56F8346的汽车电动助力转向系统控制器,在试验台上进行了转向助力试验。试验结果表明,所设计的控制策略有效,能够获得良好的助力特性。The structure and working principle of steering column-power type Electric Power Steering （EPS） system was intro- duced. The control strategy and assist characteristics of EPS system were designed based on brushless DC motor. Torque control strategy of power steering motor was designed based on the research of brushless DC motor structure and control method. EPS sys- tem controller based on Freescale microcontroller MC56F8346 was developed. Power steering tests were completed in the EPS sys- tem test bench. The test results showed that the designed control strategy is effective and can get a good assist characteristics.

关 键 词：直流无刷电动机 电动助力转向系统 控制策略 助力特性 转向试验 

分 类 号：U463.4[机械工程—车辆工程]