The second wave in automotive ISO 26262 analysis: Page 3 of 6

February 03, 2020 //By Jamil Mazzawi and David Kelf
ISO 26262 analysis
It has become well known that the analysis required for the Automotive ISO 26262 Functional Safety Standard involves lengthy and laborious fault analysis, performed using outdated fault simulation designed for manufacturing test quality grading.

Tool evolution

As automotive electronics have become more sophisticated and are used as a significant source of differentiation and value for the entire vehicle, the market for these devices has exploded. This has attracted specialized development efforts in the area of tooling that are needed to improve safety verification.

Examples of these new tools and methodologies include Test Suite Synthesis, Formal Verification and enhanced Fault Analysis. Test Suite Synthesis enables tests to be produced based on scenario specifications, increasing coverage dramatically. Formal Verification has been used to prune and optimize the fault lists that must be analyzed by the fault simulator to reduce the overall simulation burden. Both of these developments are very worthy and valuable.

However, real advancement can only come from changing the fundamental tool in the overall flow, the fault simulator. New fault analysis techniques, such as the one from Optima Design Automation, are designed to replace the fault simulator with an engine optimized directly for automotive fault analysis that can offer order of magnitude acceleration over previous techniques.

Design category: 

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