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논문 기본 정보

저자정보
(국민대학교) (국민대학교) (국민대학교) (국민대학교)
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한국자동차공학회 한국자동차공학회논문집 한국자동차공학회논문집 제33권 제1호
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    초록·키워드

    In this study, we established the safety requirements and risk mitigation strategies for a longitudinal Smart Cruise Control(SCC) system by using LiDAR sensors, focusing on Safety of The Intended Functionality(SOTIF). We applied the System-Theoretic Process Analysis(STPA) to identify Unsafe Control Actions(UCAs), and developed risk scenarios by analyzing disturbance factors in LiDAR sensors. These scenarios were assessed in a virtual simulation, determining Effective Collision Speed, Time to Collision(TTC), and the Fault Tolerant Time Interval(FTTI). We evaluated the feasibility of driver control transfer within FTTI. If it was deemed infeasible, additional time to handle defects was considered to meet safety requirements. Furthermore, safety mechanisms were designed to ensure timely transitions and effective handling. Simulation results confirmed that these mechanisms met safety requirements and mitigated risks. This study provided a comprehensive guide to the SOTIF process, supporting future autonomous driving research and commercialization by enhancing safety standards.

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      UCI(KEPA) : I410-151-25-02-092096706