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Development of Quantitative Methods for Evaluating Failure Safety of Level 3 Autonomous Vehicles

SAE Level 3 자율주행자동차의 고장 안전성 정량적 평가 방법 개발에 관한 연구

  • Kim, Dooyong (Graduate School of Automotive Engineering, Kookmin University) ;
  • Lee, Sangyeop (Graduate School of Automotive Engineering, Kookmin University) ;
  • Lee, Hyuckkee (Intelligent Vehicle Control System Research Center, Korea Automotive Technology Institute) ;
  • Choi, Inseong (Automated Vehicle Center, Korea Automobile Testing and Research Institute) ;
  • Shin, Jaekon (Automated Vehicle Center, Korea Automobile Testing and Research Institute) ;
  • Park, Kihong (Department of Automobile and IT Convergence, Kookmin University)
  • 김두용 (국민대학교 자동차전문대학원) ;
  • 이상엽 (국민대학교 자동차전문대학원) ;
  • 이혁기 (자동차부품연구원 스마트운전제어연구센터) ;
  • 최인성 (자동차안전연구원 자율주행자동차센터) ;
  • 신재곤 (자동차안전연구원 자율주행자동차센터) ;
  • 박기홍 (국민대학교 자동차IT융합학과)
  • Received : 2018.10.24
  • Accepted : 2019.01.18
  • Published : 2019.02.28

Abstract

Autonomous vehicles can be exposed to severe danger when failure occurs in any of its components. For this reason many countries are making efforts on the legislative issue how to objectively evaluate failure safety of an autonomous vehicle when such a vehicle is commercially available to a customer in the near future. In level-3 automation, a driver must take over the control of his vehicle when failure occurs, and the driver's controllability must be secured for escape from the imminent danger. In this paper, quantitative methods have been developed for evaluating failure safety of the level-3 autonomous vehicle, and they were validated by simulation. And also, we confirmed that the proposed evaluation method can quantitatively evaluate the failure safety.

자율주행자동차는 고장이 발생하면 큰 위험에 노출되기 쉬우며, 이런 이유로 각국에서는 자율주행자동차가 본격적으로 양산되기 전부터 고장 안전성을 객관화된 기준으로 평가하기 위한 연구에 많은 노력을 기울이고 있다. 특히 레벨3로 불리는 조건부 자율주행자동차는 고장이 발생할 경우 제어권이 운전자에게 이전되어야 하는데 이때에 운전자의 제어 가능성이 충분히 확보되어야 한다. 따라서 본 논문에서는 조건부 자율주행자동차를 대상으로 고장 안전성을 정량적으로 평가할 수 있는 방법에 관한 연구를 수행하였으며, 개발된 방법을 시뮬레이션을 통해 검증하였다. 또한 본 논문에서 제안하는 평가 방법이 고장 안전성을 정량적으로 판단할 수 있음을 확인 하였다.

Keywords

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