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HAZARD ANALYSIS & RISK ASSESSMENT — CLASSIFICATION TO ASIL
CONCEPT PHASE
HAZARDOUS EVENT
UNINTENDED FULL TORQUE DEMAND — eAXLE
OPERATIONAL SITUATION: MOTORWAY · DRY ROAD · 120 km/h · TRAFFIC AHEAD
ASIL DETERMINATION — SEVERITY CLASS S3
CLASSIFICATION PER ISO 26262-3:2018
ASIL D
SAFETY GOAL — PREVENT UNINTENDED TORQUE > 20 Nm
FTTI 250 ms · SAFE STATE: TORQUE PATH DE-ENERGISED
ASIL DECOMPOSITION
REQUIREMENT · ASIL D
ELEMENT 1
ASIL B(D)
ELEMENT 2
ASIL B(D)
SUFFICIENT INDEPENDENCE REQUIRED — DEPENDENT FAILURE ANALYSIS (DFA)
DECOMPOSITION DOES NOT LOWER THE INTEGRITY OF THE SAFETY REQUIREMENT
PERMITTED DECOMPOSITIONS OF ASIL D
ASIL D → ASIL C(D) + ASIL A(D)
ASIL D → ASIL B(D) + ASIL B(D)
ASIL D → ASIL D(D) + QM(D)
SELECTED
EACH ELEMENT MUST BE SUFFICIENTLY INDEPENDENT
S — SEVERITY · E — EXPOSURE · C — CONTROLLABILITY
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CXTECH.ME — C. TRICULESCU
REV. A
FIG. 03 — ASIL DETERMINATION
SH. 1/1
ISO 26262-3 · ISO 26262-9
SI UNITS