Browse > Article

Robust Model Based Fault Detection of EPB System for Varying Temperature  

Moon, Byoung-Joon (Mando Corporation, Active Safety 2 Team)
Park, Chong-Kug (Department of Electronics Engineering, KyungHee University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.17, no.5, 2009 , pp. 26-30 More about this Journal
Abstract
In this paper, a robust model based fault detection for varying temperature is proposed, To develop a robust force estimation model, it needs temperature information because the force sensor's output is affected by a temperature variation. If an EPB system does not include a temperature sensor, the model has a much larger error than an EPB system with a built-in temperature sensor. Therefore, the temperature is estimated by using Ohm's law. The force model is applied with a motor current, battery voltage, operation mode, and the estimated temperature to detect a force sensor's abnormal signal fault. The residual is calculated by comparing the value of the measured force and the estimated force. Fault information is collected by using the output of the evaluated residual with the adaptive thresholds. A proposed robust model based fault detection for varying temperature was verified by HILS (Hardware in the Loop Simulation).
Keywords
Electronic parking brake; Fault detection; Temperature estimation; Sensor fault; Force sensor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 J. Chen and R. J. Patton, Robust Model-Based Fault Diagnosis for Dynamic Systems, Kluwer, pp.51-54, 1999
2 B. J. Moon, Y. J. Park, D. S. Kim and C. K. Park, "Model Based Fault Detection of Electronic Parking Brake System," KSAE 2008 Annual Conference, pp.1899-1903, 2008
3 G. Mihov, E. Dimitrov and N. Nenov, "Temperature Errors Compensation of Force Sensor for Railway Carriages Wheel Load Measuring," Meeting the Challenges of Electronics Technology Progress, 27th International Spring Seminar, pp.486-490, 2004
4 H. B. Chung, Y. Son, P. Yoon and C. C. Chung, "A Fault Detection Method for Electric Parking Brake (EPB) Systems with Sensorless Estimation Using Current Ripples," 14th Asia Pacific Automotive Engineering Conference, 2007-01-3660,2007
5 K. Han, K. Huh, D. Hong, J. Kim, H. Kang and P. Yoon, "Real-Time Model-Based Fault Diagnosis System for EHB System," Transactions of KSAE, Vol.16, No.4, pp.173-178, 2008