ISO 26262 Compliant Safety Analyses
Isograph’s world leading reliability software is used widely in the Automotive industry for ISO 26262 compliant safety analyses.
ISO 26262 (Road vehicles — Functional safety) is an adaptation of IEC 61508 for the automotive industry. It addresses possible hazards due to malfunctions in electronic/electrical safety related systems in passenger vehicles up to 3500kg.
Automotive Safety Integrity Levels (ASIL’s) are determined by selecting Severity, Probability of Exposure and Controllability for each hazard to be assessed. These ASIL’s specify the safety requirements to achieve an acceptable level of residual risk.
Fault Tree Analysis (FTA) and Failure Mode and Effect Analysis (FMEA) are the two most common techniques for analysing system fault modes. The FMEA is a “bottom up”, inductive approach focusing on the individual parts of the system, how they can
fail and the impact of these failures on the system. The FTA is a “top down”, deductive approach starting with the undesired system behaviour and determining the possible causes of this behaviour.
Reliability Workbench contains tools for ISO 26262 compliant safety analyses: FMECA, and FaultTree+ which provides fault tree analysis, event tree analysis and Markov analysis. Reliability Workbench also includes the failure rate prediction module that provides recognised industry standards including SN29500, IEC TR 62380, MIL HDBK 217F and Quanterion 217Plus.