Browse > Article
http://dx.doi.org/10.5370/JEET.2015.10.4.1915

Design and Development of a Functional Safety Compliant Electric Power Steering System  

Lee, Kyung-Jung (Dept. of Electronic Engineering, Kookmin University)
Lee, Ki-Ho (Dept. of Electronic Engineering, Kookmin University)
Moon, Chanwoo (Dept. of Electronic Engineering, Kookmin University)
Chang, Hyuk-Jun (Dept. of Electronic Engineering, Kookmin University)
Ahn, Hyun-Sik (Dept. of Electronic Engineering, Kookmin University)
Publication Information
Journal of Electrical Engineering and Technology / v.10, no.4, 2015 , pp. 1915-1920 More about this Journal
Abstract
ISO 26262 is an international standard for the functional safety of electric and electronic systems in vehicles, and this standard has become a major issue in the automotive industry. In this paper, a functional safety compliant electronic control unit (ECU) for an electric power steering (EPS) system and a demonstration purposed EPS system are developed, and a software and hardware structure for a safety critical system is presented. EPS is the most recently introduced power steering technology for vehicles, and it can improve driver’s convenience and fuel efficiency. In conformity with the design process specified in ISO 26262, the Automotive Safety Integrity Level (ASIL) of an EPS system is evaluated, and hardware and software are designed based on an asymmetric dual processing unit architecture and an external watchdog. The developed EPS system effectively demonstrates the fault detection and diagnostic functions of a functional safety compliant ECU as well as the basic EPS functions.
Keywords
Functional safety; Electric power steering system; ISO 26262; Electronic control unit;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Infineon Technologies, SafeTcore Safety Driver, 2012.
2 K. Lee, Y. Ki, H. Ahn, G. Hwang and J. Cheon, “Functional Safety Compliant ECU Design for Electro-Mechanical Brake (EMB) System,” SAE Int. J. Passeng. Cars - Mech. Syst., pp. 1476-1483, 2013.
3 Infineon Technologies, TC1798 User’s Manual, 2009.
4 Infineon Technologies, CIC61508 User’s Manual, 2012.
5 Alaa Marouf, Mohamed Djemaï, Chouki Sentouh, and Philippe Pudlo, “A New Control Strategy of an Electric-Power-Assisted Steering System,” IEEE Transaction on Vehicular Technology, vol. 61, no. 8, pp. 3574-3588, October 2012   DOI   ScienceOn
6 J. Lee, H. Moon, and J. Yoo, “Current Sensorless Drive Method for Electric Power Steering,” International Journal of Automotive Technology, Vol. 13, No. 7, pp. 1141-1147, 2012   DOI   ScienceOn
7 M. Lee, H. Lee, K. Lee, S. Ha, J. Bae, J. Park, H. Park, H. Choi and H. Chun, “Development of a Hardware In The Loop Simulation System for Electric Power Steering in Vehicles,” International Journal of Automotive Technology, Vol. 12, No. 5, pp. 733-744, 2011   DOI   ScienceOn
8 J. Kim and J. Song, “Control Logic for an Electric Power Steering System Using Assist Motor,” Mechatronics, vol. 12, no. 3, pp. 447-459, Apr. 2002.   DOI   ScienceOn
9 Hui Chen, Leilei Zhang, Bolin Gao, “Active Return Control of EPS Based on Model Reference Fuzzy Adaptive Control”, Proceedings of the 2011 IEEE International Conference on Mechatronics, pp. 194-199, 2011,
10 P. O. Jacob, “Design & Safety Considerations for Electrical Power Steering (EPS) Systems Based on Automotive Safety Integrity Levels,” SAE Technical Paper, 2010-01-0994, 2010.
11 S. Seo, “ISO26262 application to electric steering development with a focus on Hazard Analysis,” In Proc. of Systems Conference, IEEE International, pp. 655-661, 2010.
12 A. Badawy, J. Zuraski, F. Bolourchi, and A. Chandy, “Modeling and analysis of an electric power steering system,” SAE Tech. Paper 1999-01-0399, c.
13 Y. Hu, X. Ji, K. Chen and X. Ma, “Elementary Study on BLDC Controller for Electric Power Steering System,” SAE Tech. Paper 2004-01-1096, 2004.
14 M. Bellotti and R. Mariani, “How future automotive functional safety requirements will impact micro-processors design,” Microelectronics Re-liability, vol. 50, no. 9-11, pp. 1320-1326, 2010.   DOI   ScienceOn
15 ISO 26262, Road Vehicles-Functional Safety, 2011.