吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (6): 1737-1742.doi: 10.13229/j.cnki.jdxbgxb201506001

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

HE Lei1, MA Bo-xiang2, ZHENG Hong-yu1, WANG Xiang3   

  1. 1.State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130022, China;
    2.R&D Center, China FAW Co., Ltd, Changchun 130011, China;
    3.Automobile Engineering Institute, Guangzhou Automobile Group Co., Ltd, Guangzhou 511434, China
  • Received:2014-05-19 Online:2015-11-01 Published:2015-11-01

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Abstract:

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.

Key words: vehicle engineering, steering-by-wire, stability control, passive controller

CLC Number: 

  • U463.4
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