iso 26262 introduction - v1.0
TRANSCRIPT
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Concept PhaseISO 26262
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CONTENTS
•Overview
•Item Definition
•Initiation of Safety lifecycle
•Hazard Analysis and Risk Assessment
•Functional Safety Concept
•Conclusion
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Overview
Concept Phase
Initiation of Safety Lifecycle
Hazard nalysis ! "is#
ssess$ent
%&nctional Safety Concept
Ite$ 'efinition
• O()ective
• Inp&ts
• "e*&ire$ents and
"eco$$endations
• +or# prod&cts
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Ite$ 'efinition
+hat is an Ite$,
s per ISO 26262 standard- an ite$ is a syste$ or an array of syste$s to i$ple$ent a f&nction at the vehicle level.
E/a$ple0 ir(a1 syste$- ntiloc# (ra#in1 syste$ 34S5 etc.
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Cla&se Ite$ 'efinition7
O()ective0
•nderstand t!e Item
•Descri"e t!e Item
•Identify dependencies
•Identify interaction wit! environment#
• Identify f&nctional
and nonf&nctional
re*&ire$ents
nalysis.
• Identify interfacere*&ire$ents
• ny e/istin1
doc&$ent or
$aterial.• Prod&ct Idea
• Ite$
definition
doc&$ent
Inp&t "e*&ire$ents and"eco$$endations
+or# Prod&ct
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Initiation of Safety Lifecycle
O()ective0
•'efine Safety Life cycle for the $odification of an e/istin1 ite$
Safety Life cycle0
• I$pact nalysis.
• Possi(le
tailorin1
• Ite$ 'efinition
'oc&$ent
• ny other
s&pportin1
doc&$ent
• I$pact
nalysis"eport
• Safety Plan
Inp&t"e*&ire$ents and
"eco$$endations+or# Prod&ct
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Hazard nalysis and "is# ssess$ent
O()ective0
•Identify and cate$orize Hazards for New Ite$
•Formulate Safety %oals#
• Carry o&t Hazard
nalysis and "is#assess$ent.
• Possi(le tailorin1
• Ite$ 'efinition
'oc&$ent
• I$pact nalysis"eport if applica(le
• ny other
s&pportin1
doc&$ent
• Hazard
analysis and
ris#
assess$entreport.
• Safety 1oals
• 8erification
report of the
a(ove two.
Inp&t "e*&ire$ents and"eco$$endations
+or# Prod&ct
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Hazard nalysis and "is# ssess$ent
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Hazard nalysis and "is# ssess$ent
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Hazard nalysis and "is# ssess$ent
"is# ssess$ent
Severity E/pos&re Controlla(ility
Class of SeveritySeverity S0 S1 S2 S3
Description No InjuriesLight andModerate Injuries
Severe and lifethreating Injuries(Survival Probable)
Life-threating injuries(Survival uncertain),Fatal injuries
Class of probability of exposure
Exposure E0 E1 E2 E3 E4
Description IncredibleVer lo!Probabilit
lo! "robabilit Mediu# "robabilit $igh Probabilit
Class of ControllabilityControllability C0 C1 C2 C3
Description%ontrollable ingeneral
Si#"l%ontrollable
Nor#all %ontrollable&ifficult to control oruncontrollable
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%&nctional Safety Concept
• 'erivation of
%&nctional safety
re*&ire$ents.
• llocation of %S".
• Esta(lish validation
criteria
• 8erification of
safety concept
• Ite$ 'efinition
'oc&$ent
• Hazard analysis
and ris#
assess$ent
report
• Safety 1oals.
• ny other
infor$ation.
• %&nctional
Safety
Concept
• 8erification
report of%&nctional
safety
concept
Inp&t"e*&ire$ents and
"eco$$endations+or# Prod&ct
O()ective0
•'erive %&nctional safety re*&ire$ents fro$ the safety 1oals.
•llocate the$ to e/istin1 safety $eas&res or e/ternal $eas&res.
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%&nctional Safety Concept
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Concl&sion
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