Adding Safety Into Automotive Design
By Ann Steffora Mutschler, Semiconductor Engineering
The ISO 26262 spec is a household term for anyone even remotely involved with the automotive industry today. Increasingly, though, it is being used interchangeably with safety-readiness across the entire supply chain.
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Also, ISO 26262 compliance requires robust computation of several hardware metrics, including single-point fault metric (SPFM), latent fault metric (LFM), and the probabilistic metric for random hardware failures (PMHF), noted Jörg Grosse, product manager functional safety at OneSpin.
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“Typically this is done within the FMEDA, which is owned by the functional safety engineers. We are observing confusion and increasing effort when it comes to computing those metrics for SoCs because tasks are pushed across to the functional verification teams without clear methods or tool flows. Massively increased chip size, shrinking geometries, and higher frequencies are imposing new challenges for compliance, such as new classes of failure modes. Innovation and re-assessment of current flows and methods are needed to ensure that crucial resources are effectively used and to prepare for these new challenges,” he said.
