Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on Prevention of Secondary Collision considering Failure of Brake Actuator

제동 액츄에이터 손상을 고려한 2차 충돌 예방에 관한 연구

  • Yang, Heecheol (Graduate School of Automotive Engineering, Kookmin University) ;
  • Kim, Dooyong (Graduate School of Automotive Engineering, Kookmin University) ;
  • Kang, Taewan (Graduate School of Automotive Engineering, Kookmin University) ;
  • Soh, Minwoo (Graduate School of Automotive Engineering, Kookmin University) ;
  • Kwon, Jaejoon (Graduate School of Automotive Engineering, Kookmin University) ;
  • Park, Kihong (Department of Automotive Engineering, Kookmin University)
  • 양희철 (국민대학교 자동차공학전문대학원) ;
  • 김두용 (국민대학교 자동차공학전문대학원) ;
  • 강태완 (국민대학교 자동차공학전문대학원) ;
  • 소민우 (국민대학교 자동차공학전문대학원) ;
  • 권재준 (국민대학교 자동차공학전문대학원) ;
  • 박기홍 (국민대학교 자동차공학과)
  • Received : 2015.07.20
  • Accepted : 2015.07.31
  • Published : 2015.09.01
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Abstract

Reportedly the fatality rate from secondary collision is six times higher than the average fatality rate from all traffic accidents. So prevention of the secondary collision is attracting significant attention from automotive industries. However, the secondary collision prevention systems that have been developed are not considering possibility of brake actuator failure that can occur by the impact during the initial collision. In this paper, a new system has been developed that could prevent secondary collision even in case of brake actuator failure by taking advantage of still operating actuators. In this system, a steering control is performed for maintaining a lane by using linear quadratic regulator. Additionally, the system attempts differential brake control with the remaining braking capability to stop the vehicle in the shortest distance. Through simulation in various collision scenarios, the system has demonstrated significant potential of preventing secondary collision that could otherwise have resulted in severe fatality.

Keywords

References

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