当前位置: 首页 > 文章 > 电动客车电动助力转向回正控制策略 江苏大学学报(自然科学版) 2011,32 (1) 28-31
Position: Home > Articles > Returnability control algorithm for EPS system of electric bus Journal of Jiangsu University (Natural Science Edition) 2011,32 (1) 28-31

电动客车电动助力转向回正控制策略

作  者:
赵万忠;施国标;林逸;孙培坤;刘顺
单  位:
北京理工大学机械与车辆工程学院;南京航空航天大学
关键词:
电动客车;电动助力转向;回正控制;模糊PID;策略
摘  要:
以增强电动客车电动助力转向系统(EPS)的回正性能为目标,提出了模糊自整定PID回正控制策略.以转向盘转角传感器和转向盘转速传感器获取的转角和转速信号为控制信号,采用模糊自整定PID方法进行回正控制,输出回正控制电压,使助力电机将转向盘迅速带到中位.综合模糊控制和PID控制的双重优点,设计了模糊PID控制器,根据所设计的模糊规则在线修正PID控制器的参数,使控制器在不同工况下达到较好的控制效果,提高了EPS系统的回正性能.仿真试验和实车试验结果表明:模糊PID控制策略能够有效改善车辆在低速时的回正不足,抑制了车辆在高速时的回正超调现象,使转向盘能够迅速回到中位,保证驾驶员的手感没有受到不良影响.
译  名:
Returnability control algorithm for EPS system of electric bus
作  者:
Zhao Wanzhong1,Shi Guobiao2,Lin Yi2,Sun Peikun1,Liu Sun1(1.College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 210016,China;2.School of Mechanical and Vehicular Engineering,Beijing Institute of Technology,Beijing 100081,China)
关键词:
electric bus;electrical power steering;return control;fuzzy PID;strategy
摘  要:
In order to enhance the returnability of electric power steering(EPS) system of electric bus,the fuzzy PID control algorithm is developed.According to the angle and speed of rotation detected by related sensors,the aligning voltage is controlled as system output by fuzzy PID theory in order to make the steering wheel reset to the mid-position.The fuzzy PID controller for the system is designed,which combines the advantages of fuzzy control and PID control,and can amend the parameters of PID controller on-line.Using the designed algorithm,the returnability of EPS system is improved.The simulation and test show that the control strategy can improve the wheel returnability at low speed and restrain the aligning overshoot at high speed without any adverse effect on driver′s steering feeling.

相似文章

计量
文章访问数: 25
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊