기능 안전성을 고려한 굴삭기 ARM 제어 시스템의 하드웨어 설계

This paper presents hardware development procedure of the excavator ARM control system to comply with the functional safety standard for the road vehicles. The excavator is applied to ISO 26262 for guiding the derivation of appropriate requirements and processes to avoid systematic and/or random failures in electrical/electronic equipments. In the standard, Automotive Safety Integrity Level(ASIL) is classified into four levels according to the required safety level. Each of the ASIL has its own process and steps for item development. This paper focuses on the ARM control system design at hardware level. Also, we evaluate the designed hardware of ARM control system using SPFM and LFM.