Polarion-ISO26262.pdf

发布时间：2022-06-06 发布人：admin 分类：说明书资料大小：0.77M 资料格式：pdf 举报版权申诉

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Polarion Software® ISO 26262 + FMEA Concepts + Polarion Template Timothy.stroebele@polarion.com Manager PSO

Agenda • ISO 26262 Concepts • Polarion goes ISO 26262 • Polarion FMEA • Q&A Session • Next Steps

ISO 26262 – Functional Safety for Road Vehicles What is Functional Safety ? Application that can cause harm (a risk): • Airbag exploding when infant is sitting in front seat Need to assess the risk: • Infant getting injured – „not good at all“ Find a mitigation strategy, e.g. a safety function: • Detecting infant in front seat and disabling airbag a) Sensor delivers signal to b) Software/Hardware controlling an c) Actuator (disalber) Functional Safety is then: • An infant in front seat is not exposed to an unacceptable (unreasonable) risk Polarion Software® www.polarion.com 3

ISO 26262 – Functional Safety for Road Vehicles IEC 61508 – ISO 26262 • Functional Safety for Road Vehicles ISO 26262 is an adaption of IEC 61508 for the automotive industry • IEC 61508 (Industrial) Functional Safety for E/E/PE Safety releated systems ISO 26262 Functional Safety for E/E systems in road vehicles EN 50128/EN50129 Rail Transport IEC 62304 Medical Devices Polarion Software® www.polarion.com 4

ISO 26262 – Functional Safety for Road Vehicles Key Components • Provides an Automotive Safety Lifecycle, which covers all phases from initial definition and planning till disassembling of the product • Supports tailoring the necessary activities during these lifecycles phases • Provides an automotive specific risk-based approach for determining risk classes (Automotive Safety Integrity Level, ASILs) based on „Item“ • Uses ASILs for specifying the item‘s necessary safety requirements for archieving an acceptable residual risk • Provides requirements for validation and confirmation measures Polarion Software® www.polarion.com 5

ISO 26262 – Automotive Safety Integrity Functional Safety for Road Vehicles Level (ASIL) • The ASIL is a key component • The ASIL is determined at the beginning of the development process • The intended functions of the system are analyzed with respect to possible hazards • ASIL asks: „If a failure arises, what will happen to the driver and associated road users?“ Polarion Software® www.polarion.com 6

ISO 26262 – Functional Safety for Road Vehicles ISO 26262 – Main Parts Polarion Software® www.polarion.com 7

ISO 26262 – Hazard Analysis and Risk Functional Safety for Road Vehicles Assessment ISO 26262-3 Concept Phase 3-5 Item Definition 3-6 Initiation of the safety lifecycle 3-7 Hazard analysis and risk assessment 3-8 Functional safety concept Hazard Identification Hazard Classification Hazard Determination Safety Goal Determination Polarion Software® www.polarion.com 8

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