Model-Based Assurance for Justifying Automotive Functional Safety 2010-01-0209
With the growing complexity of, and reliance on, safety-related electrical/electronic (E/E) systems in the automotive sector, the development of an explicit safety case is highly recommended to provide assurance to the different stakeholders interested in automotive functional safety. The production of a safety case is explicitly mandated by the draft automotive functional safety standard ISO26262. A safety case should consider all organisational and technical factors that may contribute to safety. For example, it should provide assurance for the safe behaviours of a particular system as well as assurance for the process by which this system is developed, operated and maintained. In this paper, we address one component of the overall safety case, namely the assurance of the functional safety concept. In particular, we examine how model-driven development and assessment can provide a basis for the systematic generation of functional safety requirements. We demonstrate how an automotive safety case can be structurally and traceably developed, justifying why and how the defined functional safety requirements can adequately mitigate the risk of the identified hazards to an acceptable level. A case study is also presented throughout this paper, discussing examples and lessons learnt from the development of a safety case for an air suspension system.
Citation: Habli, I., Ibarra, I., Rivett, R., and Kelly, T., "Model-Based Assurance for Justifying Automotive Functional Safety," SAE Technical Paper 2010-01-0209, 2010, https://doi.org/10.4271/2010-01-0209. Download Citation
Author(s):
Ibrahim Habli, Ireri Ibarra, Roger S. Rivett, Tim Kelly
Affiliated:
University of York, Jaguar Land Rover, Jaquar Land Rover
Pages: 16
Event:
SAE 2010 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Safety Critical Systems, 2010-SP-2262
Related Topics:
Safety regulations and standards
Suspension systems
Hazards and emergency operations
Production
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