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电动助力转向系统控制策略研究

Control Strategy of the Electric Power Steering System
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摘要 本文介绍了电动助力转向系统的结构和工作原理,建立了该系统的动力学模型,进一步提出了系统的助力控制、回正控制以及动态阻尼控制策略。策略中采用了PI控制和PID控制方法,并讨论了控制器增益的变化对转向特性的影响。通过仿真分析比较,证明采用此控制策略的EPS能减轻汽车的转向操纵力,改善汽车的回正特性。 In this paper,the stucture of the electric power steering system (EPS) is introduced and the dynamic model of EPS is also presented. In order to improve the EPS steering characteristic, the PD controller and PID controller are discussed .The simulation results show that the proposed control schemes can reduce the steering torque and improve the returnability performance.
出处 《自动化技术与应用》 2007年第2期30-32,共3页 Techniques of Automation and Applications
关键词 车辆工程 电动助力转向 控制策略 PI控制 PID控制 vehicle engineering electric power steering control strategy PI control PID control
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