Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Development of Clamping Force Estimation Algorithm and Clamp-force Sensor Calibration on Electromechanical Brake Systems

전동식 브레이크 시스템의 클램핑력 센서 교정 및 클램핑력 추정 알고리즘 개발

  • Park, Giseo (Department of Mechanical Engineering, KAIST) ;
  • Choi, Seibum (Department of Mechanical Engineering, KAIST) ;
  • Hyun, Dongyoon (Chassis System Control Development Team, Hyundai Motor Company)
  • 박기서 (한국과학기술원 기계공학과) ;
  • 최세범 (한국과학기술원 기계공학과) ;
  • 현동윤 (현대자동차 샤시제어개발팀)
  • Received : 2015.12.01
  • Accepted : 2016.03.07
  • Published : 2016.05.01
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Abstract

The electromechanical brake (EMB) is one of future brake systems due to its many advantages. For implementation of the EMB, the correct feed back about clamping force is necessary. Keeping commercialization of the EMB in mind, it is strongly demanded that an expensive load cell measuring the clamping force is replaced with an estimation algorithm. In addition, an estimation of the kissing point where the brake pads start to come into contact with a disk wheel is proposed in this paper. With these estimation algorithms, the clamping force can be expressed as a polynomial characteristic curve versus the motor angle. Also, a method for calibration of measured values by the load cell is proposed and used for an actual characteristic curve. Lastly, the performance of the proposed algorithms is evaluated in comparison with the actual curve on a developed EMB test bench.

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References

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