吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (2): 526-532.doi: 10.13229/j.cnki.jdxbgxb201502028

• Orignal Article • Previous Articles     Next Articles

Strategy of vehicle stability control based on EHB system

LI Shou-tao1,MA Yong-xue1,GUO Peng-cheng1,ZONG Chang-fu2,ZHANG Hao3   

  1. 1.College of Communication Engineering, Jilin University, Changchun 130022, China;
    2.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    3.College of Computer Science and Technology, Jilin University, Changchun 130012, China
  • Received:2013-09-10 Online:2015-04-01 Published:2015-04-01

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Abstract: This paper presents a strategy of vehicle stability control based on the Electric Hydraulic Braking (EHB) system of the vehicle. First, the yaw rate deviation and the mass-centre sideslip angle rate threshold are determined using fuzzy inference methods. Then, the logic threshold PI control method is used to calculate the additional yawing moment. Finally the additional yawing moment is realized on the EHB system. In addition, the fuzzy PI self-tuning algorithm is used to optimize the control of the target pressure of the wheel cylinder of EHB system. Simulation and experiment results show that the fuzzy PI self-tuning algorithm can obtain good control effect in the whole working section of EHB system. When the vehicle loses stability in steering, the control strategy can implement corrective action in time to improve the safety of the vehicle.

Key words: automatic control technology, logic threshold PI controller, fuzzy PI controller, EHB system

CLC Number: 

  • TP271.2
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