Safety-Oriented System Hardware Architecture Exploration in Compliance with ISO 26262

Safety-critical intelligent automotive systems require stringent dependability while the systems are in operation. Therefore, safety and reliability issues must be addressed in the development of such safety-critical systems. Nevertheless, the incorporation of safety/reliability requirements into th...

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Bibliographic Details
Published in:Applied sciences 2022-05, Vol.12 (11), p.5456
Main Authors: Lu, Kuen-Long, Chen, Yung-Yuan
Format: Article
Language:English
Subjects:
Automobile safety
Decomposition
Design
Engineers
Exploration
Failure
Failure modes
functional safety
International standards
ISO-26262
Optimization techniques
Product development
Safety
Safety critical
safety mechanism
Safety standards
system hardware architecture
Systems design
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Summary:Safety-critical intelligent automotive systems require stringent dependability while the systems are in operation. Therefore, safety and reliability issues must be addressed in the development of such safety-critical systems. Nevertheless, the incorporation of safety/reliability requirements into the system will raise the design complexity considerably. Furthermore, the international safety standards only provide guidelines and lack concrete design methodology and flow. Therefore, developing an effective safety process to assist system engineers in tackling the complexity of system design and verification, while also satisfying the requirements of international safety standards, has become an important and valuable research topic. In this study, we propose a safety-oriented system hardware architecture exploration framework, which incorporates fault tree-based vulnerability analysis with safety-oriented system hardware architecture exploration to rapidly discover an efficient solution that complies with the ISO-26262 safety requirements and hardware overhead constraint. A failure mode, effect, and diagnostic analysis (FMEDA) report is generated after performing the exploration framework. The proposed framework can facilitate the system engineers in designing, assessing, and enhancing the safety/robustness of a system in a cost-effective manner.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12115456