Overview
ISO/TR 3152:2022 is a Technical Report from ISO that compares ISO 26262‑12:2018 with other parts of the ISO 26262 functional safety series to support adaptation for motorcycles. Based on ISO 26262‑12, this report documents and clarifies differences with ISO 26262‑2:2018, ISO 26262‑3:2018, and ISO 26262‑4:2018, helping practitioners tailor the automotive functional safety requirements to motorcycle‑specific needs.
Key topics
- Scope and purpose: Lists and categorizes differences to clarify intent when applying ISO 26262 to motorcycle E/E and software systems.
- Categorization of differences: Uses four categories - Added, Deleted, Modified, and Unintended - to make adaptation decisions traceable.
- Clause coverage:
- Safety culture (5 differences): communication channels, discipline interactions.
- Confirmation measures (16 differences): levels and independence of confirmation reviews for work products; updated confirmation tables for motorcycles.
- Hazard analysis and risk assessment (72 differences): motorcycle dynamic behaviour, classification parameters (severity, exposure, controllability) and introduction of MSIL (motorcycle safety integrity level) and ASIL↔MSIL mapping.
- Vehicle integration and testing (20 differences): test feasibility and integration specifics for motorcycles.
- Safety validation (10 differences): validation environment, execution and evaluation adaptations; note on ASIL D assignment constraints due to ASIL‑MSIL mapping.
- Document structure notes: Identical content (Clauses 1–4) and informative annexes are excluded from comparison; 123 differences were identified in total.
Practical applications
- Use ISO/TR 3152:2022 when adapting the ISO 26262 safety lifecycle to motorcycle projects - from hazard analysis to safety validation.
- Helps functional safety engineers, motorcycle OEMs, system and software developers, test engineers, and safety assessors:
- Determine where motorcycle‑specific tailoring is required.
- Apply appropriate independence for confirmation reviews.
- Classify hazardous events using motorcycle‑centric parameters and MSIL.
- Plan feasible vehicle integration and safety validation tests for two‑wheel dynamics.
- Useful as a compliance and traceability aid during design reviews, safety plans, and certification activities.
Related standards
- ISO 26262 series (Parts 1–9, 12): Baseline functional safety requirements for road vehicle E/E‑systems.
- ISO/TR 3152:2022 specifically cross‑references ISO 26262‑2, ‑3 and ‑4 (all 2018 editions) as comparison targets.
Keywords: ISO/TR 3152, ISO 26262 motorcycle adaptation, functional safety, MSIL, ASIL mapping, hazard analysis and risk assessment, confirmation measures, vehicle integration, safety validation.
Open preview (PDF)Road vehicles — Comparison between ISO 26262-12 and other parts of the ISO 26262 series to support motorcycle adaptation
