요구사항 기반 Testing 기법을 이용한 바이모달트램용 차량종합제어장치의 신뢰성 개선에 관한 연구

초록

This paper has shown the reliability Improvement procedure of CC(Central Computer of Vehicle Control Unit) loaded the embeded software which was developed for BT(Bimodal Tram) by applying to REED(REquirement EDitor) and testing method based on test case generation and HIL(Hardware In the Loop). REED is some kind of computerized tool that can represent the requirement from customer with visualized diagrams. Many test cases of CC under test were generated followed by MC/DC(Modified Condition/Decision Coverage) standard. And then CC was constructed in HIL with CAN bus which is communicated with personal computer and NI instrument for test. The generated test cases for CC(specifically electronic leveling control function as a part of CC functions) was examined one by one and gave some error correction of wrong software coding. However, CC validated by these procedure was promoted in the sense of operational reliability.