자율주행자동차를 위한 안전성 평가 표준: UL 4600

초록

This paper describes UL 4600, a new international safety standard to ensure safety of autonomous cars. Conventionalvehicular safety standards such as ISO 26262 and ISO/PAS 21448 suffer from large limitations to be applied toautonomous cars, but UL 4600 exploits new approaches to be applied to autonomous cars. Conventional standards definevarious technological aspects to ensure safety and require manufacturers to certify these aspects. On the contrary, UL4600 requires manufacturer to explain and prove why autonomous cars are safe. In UL 4600, (1) under specificenvironments where the system is designed to operate with, (2) claims should be defined to guarantee given safety, and(3) arguments should be suggested to satisfy given goals, and (3) evidences should be presented to prove givenarguments. UL 4600 is technology-neutral since it does not require specific designs nor technologies. So UL 4600 onlyrequires manufacturers to prove given safety goals regardless of methods and technologies. Also UL 4600 admits variouscases of autonomous car field operations into the standard via feedback loop. So UL 4600 effectively maneuvers variousdangers unknown at the time of standard establishment.

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