汽车线控转向系统的路感反馈技术综述

Summarization of road feel feedback technology for automobile steer by wire system

汽车线控转向系统取消了转向盘与转向轮之间的机械连接,通过力反馈装置提供转向时的转向盘阻力矩以实时提供路感反馈.路感反馈是线控转向系统的核心技术之一.总结了线控转向系统的国内外研究现状、实现线控转向系统路感反馈的几种典型结构和路感产生的机理,分析了线控转向系统路感反馈的多种控制算法和控制方法;研究了线控转向系统路感反馈的实验方法,为研发线控转向系统提供了参考.

Automobile steer by wire system disconnects the mechanical link between the steering wheel and steerable wheels so the reaction torque on the steering wheel should be provided by the torque feedback device to realize the road feel feedback real time when steering,which is one of the key technologies of steer by wire system.First,current status of steer by wire system at home and abroad are summarized.Then,several typical structures of steer by wire system are analyzed,followed by introduction of several road feel feedback control algorithms and control methods of steer by wire system.Finally,test methods of steer by wire system are presented.Our work provided a reference for further research of steer by wire system.