基于ISO 26262安全要求的汽车电子电气架构优化模型

Considering Safety Requirements Based on ISO 26262 in Model-Based Optimization of Automotive Electrical/Electronic Architectures

摘要:

在开发汽车电子电气（E/E）架构时，考虑安全要求是实现未来技术（如自动驾驶）的先决条件之一。按照ISO 26262标准，安全分析必须在产品开发生命周期的早期阶段进行，以检测设计缺陷并采取行动改善设计。本文提出了一种基于模型的方法，在汽车E/E架构的设计阶段解决符合ISO 26262的安全要求；同时，基于这些要求，提取了一组与安全相关的约束条件，并通过整数线性规划（ILP）模型将这些约束用于E/E架构的优化。

关键词:汽车电子电气;电子电气架构;优化模型;安全要求;ISO 26262标准

Abstract:

Considering safety requirements while developing electrical and electronic （E/E） architectures is a prerequisite for the realization of future technologies such as autonomous driving. Following the ISO 26262 standard， safety analyses have to be conducted in the early phase of the development lifecycle in order to detect design flaws and take actions to improve the design. This paper presents a model-based approach for addressing safety requirements conforming to ISO 26262 during the design phase of automotive E/E architectures. Based on the requirements， a set of safety-related constraints is extracted， which can be used in an integer linear programming （ILP） model to optimize E/E architectures.

Key words:functional safety;E/E architecture;optimization;model-based development