Journal of Auto-vehicle Safety Association (자동차안전학회지)

Korean Auto-vehicle Safety Association (한국자동차안전학회)
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Design of V2I Fail-Operational Safety Concept for Urban Automated Driving

도심 자율주행을 위한 V2I Fail-Operational 안전컨셉 설계

  • Seong-Geun Shin ;
  • Jong-Ki Park ;
  • Chang-Min Ye ;
  • Chang-Soo Woo ;
  • Jong-Woo Park ;
  • Hyuck-Kee Lee
  • 신성근 (한국자동차연구원 지능형교통제어기술부문) ;
  • 박종기 (한국자동차연구원 지능형교통제어기술부문) ;
  • 예창민 (한국자동차연구원 지능형교통제어기술부문) ;
  • 우창수 (한국자동차연구원 지능형교통제어기술부문) ;
  • 박종우 (한국자동차연구원 지능형교통제어기술부문) ;
  • 이혁기 (한국자동차연구원 지능형교통제어기술부문)
  • Received : 2023.12.29
  • Accepted : 2024.07.26
  • Published : 2024.09.30
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Abstract

Ensuring an automated fallback strategy in response to malfunctions during the execution of the Dynamic Driving Task (DDT) is imperative for Level 4 autonomous driving systems. While Triple Modular Redundancy (TMR) represents a prominent Fail-Operational structure, its practical application to multiple systems is constrained by the substantial increase in costs. In this paper, we propose a pragmatic Fail-Operational safety concept utilizing on-board camera sensors and the Vehicle-to-Infrastructure (V2I) communication module, known as the On-Board Unit (OBU), to provide traffic signal information within the vehicle. The viability of the designed safety concept is validated through error injection simulations. This approach addresses the practical limitations associated with applying Fail-Operational functionality to numerous systems due to the considerable cost escalation. Leveraging camera sensors and V2I communication modules presents a practical and cost-effective solution for maintaining operational safety in Level 4 autonomous driving systems, particularly when responding to malfunctions in the DDT.

Keywords

Acknowledgement

본 연구는 국토교통부와 국토교통과학기술진흥원 자율주행기술개발 혁신사업의 연구비 지원(과제번호 RS-2021-KA162182)에 의해 수행되었습니다.

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