Requirements Analysis and Architecture Design of Automotive Adaptive Front-Lighting System (AFS) Based on Functional Safety Standards

Résumé fourni par la source

Adaptive front-lighting system (AFS) is an intelligent automotive headlighting system that can adaptively adjust the angle of illumination according to road conditions. In this paper, in order to improve the safety and reliability of the AFS, the functional safety analysis of automotive AFS is developed based on the international standard ISO 26262. According to the standard functional safety analysis process, the hardware structure, models and functionalities of the AFS system are described. Then, the automotive safety integrity level (ASIL) is obtained based on the hazard analysis and risk assessment (HARA). Based on ASIL allocation principle, this paper further proposes the safety goals of the AFS. Finally, aiming to improve driving safety, we propose an improved AFS architecture based on the functional safety analysis.

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