吉林大学学报(工学版) ›› 2014, Vol. 44 ›› Issue (3): 599-604.doi: 10.13229/j.cnki.jdxbgxb201403003

• Orignal Article • Previous Articles     Next Articles

Vehicle frontal collision warning/avoidance strategy

PEI Xiao-fei1, QI Zhi-quan2, WANG Bao-feng2, LIU Zhao-du2   

  1. 1.School of Automobile Engineering,Wuhan University of Technology,Wuhan 430063,China;
    2.School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China
  • Received:2012-11-20 Online:2014-03-01 Published:2014-03-01

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Abstract: To evaluate the level of danger of current dynamic situation, a concept of collision avoidance time buffer, Tbuffer, is proposed to calculate how much time buffer is left for driver or the control system to react. Based on Tbuffer, a graded collision warning/avoidance algorithm is designed to adjust to different driving behaviors. Through audio/visual warning and active braking intervention, effective collision avoidance action can be realized. Simulations were carried out to compare the proposed algorithm with other four algorithms under three conditions. Results show that the proposed strategy is not only in accordance with driver's collision avoidance reaction, but also improves vehicle active safety effectively.

Key words: vehicle engineering, active safety, collision buffer time, collision avoidance, graded collision warning

CLC Number: 

  • U463
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