智能网联汽车网关系统功能安全设计

Functional Safety Design for Gateway System of Intelligent and Connected Vehicles

ISO 26262旨在有效保障愈加复杂的汽车电子电气系统的功能安全性,按照ISO 26262标准的要求,在实际开发中建立完善的过程体系是能够满足智能网联汽车网关系统功能安全要求的前提,为此,文章首先建立基于ISO 26262的智能网联汽车网关系统功能安全的开发流程,然后阐述了基于危害分析与风险评估的评估方法,通过该方法确定了智能网联汽车网关系统的功能安全目标,并在此基础上展开了网关系统的功能安全概念设计,最后给出了网关系统的设计方案。

ISO 26262 aims to effectively guarantee the high safety of the increasingly complex automotive electronic and electrical systems.The establishment of a process system that meets the requirements of ISO 26262 is the premise to declare that the gateway system of intelligent and connected vehicles meets the requirements of ISO 26262.For this reason,this paper firstly establishes a model based on ISO 26262,and then describes the hazard and risk assessment method of functional failure based on hazard analysis and risk assessment(HARA).Through this method,the functional safety goals of the gateway system are determined,and on this basis,the functional safety concept design of the gateway system is carried out.Finally,the design scheme of the gateway system is given.