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ISSN : 1229-6783(Print)
ISSN : 2288-1484(Online)
Journal of the Korea Safety Management & Science Vol.15 No.1 pp.11-19
DOI : https://doi.org/10.12812/ksms.2013.15.1.11

자동차 안전성 설계에서 설계 추적성을 활용한 고장형태 영향분석에 관한 연구

임 관 택*, 이 재 천*
*아주대학교 시스템공학과

On the Development of an FMEA Method for Automotive Safety Utilizing Design Traceability

Jae-Chon Lee*, Gwan-Taik Lim*
*Dept. of Systems Engineering, Ajou University
Received January 18, 2013; Revision Received March 4, 2013; Accepted March 14, 2013.

Abstract

In modern systems design and development, one of the key issues is considered to be related with how toreflect faithfully the stakeholder requirements including customer requirements therein, thereby successfullyimplementing the system functions derived from the requirements. On the other hand, the issue of safetymanagement is also becoming greatly important these days, particularly in the operational phase of the systemsunder development. An approach to safety management can be based on the use of the failure mode effectand analysis (FMEA), which has been a core method adopted in automotive industry to reduce the potentialfailure. The fact that a successful development of cars needs to consider both the complexity and failurethroughout the whole life cycle calls for the necessity of applying the systems engineering (SE) process. Tomeet such a need, in this paper a method of FMEA is developed based on the SE concept. To do so, aprocess model is derived first in order to identify the required activities that must be satisfied in automotivedesign while reducing the possibility of failure. Specifically, the stakeholder requirements were analyzed first toderive a set of functions, which subsequentially leads to the task of identifying necessary HW/SW components.Then the derived functions were allocated to appropriate HW/SW components. During this design process,the traceability between the functions and HW/SW components were generated. The traceability can play a keyrole when FMEA is performed to predict the potential failure that can be described with the routes from thecomponents through the linked functions. As a case study, the developed process model has been applied in aproject carried out in practice. The results turned out to demonstrate the usefulness of the approach.

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