建筑
计算机科学
过程(计算)
汽车工业
系统体系结构
系统工程
系统安全
体系结构描述语言
企业架构框架
生命关键系统
功能安全
可靠性工程
嵌入式系统
工程类
视觉艺术
航空航天工程
艺术
程序设计语言
操作系统
软件
作者
Alexander Ahlbrecht,Oliver Bertram
标识
DOI:10.1109/isse51541.2021.9582542
摘要
Emerging segments such as autonomous driving require new by-wire system architectures for steering and braking. These system architectures are highly safety-critical and currently not commonly used in the automotive industry. This results in challenges for traditional development approaches. One issue is that a well-thought-out architecture selection is already required in early phases of development. Within this paper, a concept is proposed to help consideration of safety in this timely architecture selection, using a safety trade-off concept. An early consideration of system architecture safety is achieved by utilization of a formalized System-Theoretic Process Analysis on a Systems Modeling Language model. This underlying system model was developed with a Model-based System Engineering approach. Additionally, it is explained how classical safety considerations and safety principles can be integrated into this safety trade-off. Finally, the approach is demonstrated in an architecture comparison for a simplified Steer-by-Wire architecture. Results show that it is possible to find relevant safety requirements and use them to compare solution architecture candidates.
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