Journal of Auto-vehicle Safety Association (자동차안전학회지)

Korean Auto-vehicle Safety Association (한국자동차안전학회)
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Anti-lock Braking System for Commercial Vehicles with Pneumatic Brake System by Using Slip Ratio

슬립률을 이용한 상용차용 공압식 브레이크 기반 ABS 알고리즘 개발

  • 김자유 (서울대학교 차량 동역학 및 제어 연구실) ;
  • 권백순 (서울대학교 차량 동역학 및 제어 연구실) ;
  • 이경수 (서울대학교 기계항공공학부)
  • Received : 2019.11.18
  • Accepted : 2020.05.25
  • Published : 2020.06.30
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Abstract

This paper presents an anti-lock braking system for commercial vehicles with pneumatic brake system by using slip ratio. By virtue of system reliability, most commercial vehicles adopt pneumatic brake system. However, pneumatic brake systems control is more difficult than hydraulic systems due to a longer time delay and the system nonlinearity. One of the major factors in generating braking forces is the wheel slip ratio. Accordingly, the proposed ABS strategy employs the slip ratio threshold-based valve on/off control. This threshold-based algorithm is simple but effective to control the pneumatic brake systems. The control performance of the proposed algorithm has been validated via simulation studies using MATLAB/Simulink and Trucksim. The results show ABS by using slip ratio reduces the braking distance and improves vehicle control.

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References

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