摘要
针对电动助力转向中的电流跟随控制问题,通过建立系统数学模型,分析系统型别,研究了常规PID控制和模糊PID控制在电流控制中的不足,采用前馈和反馈综合控制的思想,提出了综合前馈和模糊PID反馈的电流控制算法。通过实验对比表明,前馈和模糊PID反馈的综合控制方法可显著提高电流跟随控制的稳定性、快速性和准确性。
In order to solve the current tracking control problem in electric power steering （EPS）,the system mathematical model was established and the system type was analyzed,disadvantages of the conventional PID control and fuzzy PID control were studied. Using the feed-forward and feedback integrating control theory,a feed-forward control integrated with fuzzy PID feedback control algorithm was proposed. Experiment comparisons showed that the proposed algorithm could significantly improve the system stability,response rapidity and following accuracy in current control of electric power steering system.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2010年第8期10-15,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家"863"高技术研究发展计划资助项目(2006AA110103)
关键词
车辆
电动助力转向
电流跟随
前馈控制
模糊PID控制
Vehicle
Electric power steering
Current following
Feed-forward control
Fuzzy PID control
