基于无源理论的线控转向汽车稳定性控制  

Stability control of steering-by-wire vehicle based on passive theory

作　　者：何磊[1] 马伯祥 郑宏宇[1] 王祥 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022 [2]中国第一汽车股份有限公司技术中心,长春130011 [3]广州汽车集团股份有限公司汽车工程研究院,广州511434

出　　处：《吉林大学学报（工学版）》2015年第6期1737-1742,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(51505179;51505178;51575223)

摘　　要：为了解决线控转向系统受传感器精度及信号噪声等因素影响引起的系统控制失稳问题,利用无源理论,从能量角度分析系统,设计了无源控制器,保证了线控转向系统的控制稳定性。以机械转向系统的无源性分析为基础,对线控转向系统进行无源性分析。确定线控转向系统易呈现有源状态的部分,针对该部分设计无源控制器,保证其无源性,完成系统的稳定性控制,并通过实车试验对方法的有效性进行验证,结果表明:利用无源理论设计的无源控制器能够保证线控转向系统控制的稳定性。A passive controller is developed to solve the problem of instability of steering-by-wire system caused by the inaccuracy of sensor and signal noise.The passive controller is designed with the analysis of the steering-by-wire system from the aspect of energy based on passive theory,thus ensuring the control stability of the system.The passivity of the steering-by-wire system is analyzed based on passivity analysis of mechanical steering system.The part of the steering-by-wire system that is easy to show the active state is confirmed,and the passive controller is designed to ensure its passivity,thus achieving the stability control of the system.The method is verified through real vehicle test.The results show that the passive controller designed based on passive theory can guarantee the control stability of the steering-by-wire system.

关 键 词：车辆工程 线控转向 稳定性控制 无源控制器 

分 类 号：U463.4[机械工程—车辆工程]