Abstract: Automotive functional safety is a necessary technical component of intelligent connected vehicles. This article introduces the background and development process of the ISO 26262 standard, the main content of the concept stage in the ISO 26262 standard and the setting method of automotive safety integrity level. Taking the function of the automatic driving system as an example, the work content of the functional safety of the automobile in the concept phase is explained, the functional safety goal of the automatic driving system is determined, and the specific functional safety requirements for each subsystem are analyzed and formed. Through research, development research and practice on the concept stage of automotive functional safety is carried out.

Key words: Automotive functional safety; Automotive safety integrity level; Functional safety goal; Functional safety requirement

摘要： 汽车功能安全是智能网联汽车不可或缺的技术组成部分。文章介绍了 ISO 26262 标准 的背景和发展过程及标准中概念阶段的主要工作内容，论述了功能安全完整性等级的设定方 法。以自动驾驶系统功能为例，阐述了汽车功能安全在概念阶段的工作开发实践，确定了自 动驾驶系统的功能安全目标，分析并形成了对各个子系统的具体的功能安全需求。通过研究， 对汽车功能安全概念进行开发研究与实践。

关键词: 汽车功能安全；功能安全完整性等级；功能安全目标；功能安全需求