Complex Safety Mechanisms Require Interoperability And Automation For Validation And Metric Closure

Optimizing the safety workflow: A three-step workflow for efficient fault injection.


The race to autonomous mobility among the automobile manufacturers is driving the evolution of the underlying semiconductors. As a result, semiconductor technologies are moving towards higher densities and lower operating voltages, and this migration is introducing increasing sensitivity to random hardware failures – the failures which occur unpredictably over a semiconductor’s lifetime. Modern cars deploying ADAS and AV features rely on these digital and analog systems to perform critical real-time applications. This reliance has led to a concern over validation of these systems.

Interoperability of fault injection engines, optimization techniques, and an automated flow can effectively reduce overall execution time to quickly close-the-loop from safety analysis to safety certification. Fault injection engines used in the safety workflow include formal, simulation, and emulation. Each engine has specific benefits and can reduce overall fault injection time when used together in the three-step safety workflow:

  • Step 1: Generate the optimized fault list
  • Step 2: Fault injection and classification
  • Step 3: Generate the metrics report

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