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http://dx.doi.org/10.7471/ikeee.2021.25.3.565

Evaluation Standard for Safety of Autonomous Cars: UL 4600  

Lee, Seongsoo (Soongsil University)
Ihm, Sahng-Hyeog (Soongsil University)
Publication Information
Journal of IKEEE / v.25, no.3, 2021 , pp. 565-570 More about this Journal
Abstract
This paper describes UL 4600, a new international safety standard to ensure safety of autonomous cars. Conventional vehicular safety standards such as ISO 26262 and ISO/PAS 21448 suffer from large limitations to be applied to autonomous cars, but UL 4600 exploits new approaches to be applied to autonomous cars. Conventional standards define various technological aspects to ensure safety and require manufacturers to certify these aspects. On the contrary, UL 4600 requires manufacturer to explain and prove why autonomous cars are safe. In UL 4600, (1) under specific environments 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 given arguments. UL 4600 is technology-neutral since it does not require specific designs nor technologies. So UL 4600 only requires manufacturers to prove given safety goals regardless of methods and technologies. Also UL 4600 admits various cases of autonomous car field operations into the standard via feedback loop. So UL 4600 effectively maneuvers various dangers unknown at the time of standard establishment.
Keywords
UL 4600; ISO 26262; ISO/PAS 21448; Autonomous Driving; Safety Standard;
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