Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Fault Tolerant Control of Sensor Fault of EPB System

EPB 시스템의 센서 고장 허용 제어 기법

  • Lee, Won-Goo (Department of Electrical Engineering, Hanyang University) ;
  • Lee, Young-Ok (Department of Electrical Engineering, Hanyang University) ;
  • Jang, Min-Seok (Department of Electrical Engineering, Hanyang University) ;
  • Lee, Choong-Woo (Department of Electrical Engineering, Hanyang University) ;
  • Chung, Chung-Choo (Division of Electrical and Biomedical Engineering, Hanyang University) ;
  • Chung, Han-Byul (MANDO Corporation, Central R&D Center)
  • Received : 2009.03.23
  • Accepted : 2009.12.15
  • Published : 2010.07.01
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Abstract

In this paper, a fault tolerant control against sensor faults of electric parking brake (EPB) is proposed. Fault tolerant control method of EPB system is strongly demanded since sensor faults can endanger a driver's safety. In this paper, a clamp force estimation method is presented using motor's armature current and angular velocity. Clamp force estimation method is applied for fault detection method with parity equations. The goal of the detection method is to detect and identify faults in encoder, current sensor, force sensor, and parking cable. And a switching logic for fault tolerant control against the three sensor faults is suggested. Experimental results show that the proposed force estimation method satisfies the specifications of EPB system. The effectiveness of the fault detection method is validated with experimental results. Although a single sensor fault happens, EPB system with the proposed fault detection method does not develop into a failure on subsystem or system level.

Keywords

References

  1. R. Isermann, R. Schwarz, and S. Stolzl, "Fault-Tolerant Drive-by-Wire Systems," IEEE Control Systems Magazine, Vol.22, Issue 5, pp.64-81, 2002. https://doi.org/10.1109/MCS.2002.1035218
  2. C. Baier-Welt, "Smart Actuator for Intelligent Electrical Parking Brake System - Functionality and Safety, System Approach," 8th International Conference on New Actuators, Bremen, Germany, 2002.
  3. C. W. Lee, H. B. Chung, Y. O. Lee, C. C. Chung, Y. Son and P. Yoon, "Fault Detection Method for Electric Parking Brake (EPB) Systems with Sensorless Estimation Using Current Ripples," Int. J. Automotive Technology, Vol.11, No.3, pp.387-394, 2010. https://doi.org/10.1007/s12239-010-0048-7
  4. R. Isermann, Fault-Diagnosis Systems (An Introduction from Fault Detection to Fault Tolerance), Springer, 2006.
  5. M. Jang, W. Lee, Y. O. Lee, W. Lee, C. W. Lee, C. C. Chung and Y. Son, "Clamping Force Estimation in Electric Parking Brake System using Angular Velocity of the Motor," Proc. of Control, Automation, and Systems Symposium, pp.500-504, 2008.
  6. R. Hoseinnezhad, S. Saric and A. Bab-Hadiashar, "Estimation of Clamp Force in Brakeby- Wire Systems: A Step-by-Step Identification Approach," SAE, Vol.011154, 2006.
  7. R. Schwarz, R. Isermann, J. Bohm, J. Nell and P. Rieth, "Clamping Force Estimation for a Brakeby- wire Actuator," SAE, Vol.010482, 1999.
  8. C. Line, C. Manzie and M. Good, "Control of an Electromechanical Brake for Automotive Brake-by-wire Systems with an Adapted Motion Control Architecture," SAE, Vol.012050, pp.1047-1056, 2004.
  9. H. Olsson, K. J. Astrom, C. C. de Wit, M. Gafvert and P. Lischinsky, "Friction Models and Friction Compensation," Eur. J. Control, Vol.4, No.3, pp.176-195, 1998.
  10. A. Consoli, G. Bottiglieri, R. Letor, R. Rugeri, A. Testa and S. De Caro, "Sensorless Position Control of DC Actuators for Automotive Applications," Industry Applications Conference, Vol.2, pp.1217-1224, 2004.
  11. B. J. Moon, Y. J. Park, D. S. Kim and C. K. Park, "Model Based Fault Detection of Electronic Parking Brake System," Spring Conference Proceedings, KSAE, pp.1899-1903, 2008.
  12. B. J. Moon and C. K. Park, "Robust Model Based Fault Detection of EPB System for Varying Temperature," Transactions of KSAE, Vol.17, No.5, pp.26-30, 2009.
  13. Y. O. Lee, C. W. Lee, C. C. Chung, Y. Son, P. Yoon and I. Hwang, "Stability Analysis of Electric Parking Brake(EPB) Systems with a Nonlinear Proportional Controller," Proc. of the 17th IFAC World Congress, Seoul, Korea, pp.14247-14253, 2008.
  14. W. G. Lee, A Fault Tolerant Control Method of Electric Parking Brake System, M. S. Thesis, Hanyang University, pp.29-36, 2009.