
Explore the basics of functional safety and the ISO 26262 standard for passenger vehicles. Learn how hazard analysis and risk assessment shape safety at software and hardware levels.
Understand ISO 26262 functional safety: risk from hazards due to malfunctioning electrical and electronic systems, safe state maintenance, acyl levels (Automotive safety integrity level), ECUs, and ADAS architecture.
Explain passive safety, active safety, and functional safety in automotive systems, and show how ISO 26262 governs electrical and electronic safety.
Explore the evolution from IEC 61 508 to ISO 26262 for road vehicles, and learn how the V-model drives functional safety across vehicle hardware and software life cycles.
Explore organizational management in automotive functional safety, covering ASIL levels, safety culture, competence and quality management, safety plans and cases, and development interface agreement across the product life cycle.
Explore the development interface agreement (DIA) and its RACI roles to clarify customer and supplier responsibilities, exchange work products, and align safety plans and safety cases with ISO 26262.
Explore the hardware perspective of functional safety under ISO 26262, including safety-relevant hardware, alignment of safety requirements, hardware design, evaluation of architecture, fault handling, interface with software, and test cases.
Explore software development in ISO 26262, covering software specification, safety requirements, architecture, unit design, verification, embedded testing, v-model, hardware interfaces, fault injection, and test coverage.
Explore system level ISO 26262 for automotive electrical and electronic, mechatronic architectures, and how safety concepts cascade to hardware, software, and integration with evidence.
Discover item definition and how OEMs implement items, perform hazard analysis and risk assessment, classify ASIL using severity, exposure, and controllability, and formulate safety goals.
Explore ISO 26262 functional safety concepts, including ASIL levels (A–D) and QM, and how exposure, severity, and controllability shape safety goals for motor vehicles.
ISO 26262 Overview
ISO 26262 is an international standard for functional safety in the automotive industry. It focuses on the safety of electronic and electrical (E/E) systems in road vehicles, ensuring that these systems perform reliably and reduce the risk of failures that could lead to accidents. The standard is derived from IEC 61508, which addresses functional safety across various industries.
Scope and Applicability
ISO 26262 applies to passenger cars with a maximum gross weight of 3,500 kg but is increasingly adapted for other vehicle types. It covers the entire lifecycle of a product, from concept and development to production, operation, and decommissioning.
Key Concepts
The standard is structured into ten parts, addressing various aspects of functional safety:
Vocabulary: Defines terms and concepts.
Management of Functional Safety: Outlines processes and responsibilities.
Concept Phase: Focuses on hazard analysis and risk assessment.
4-6. Product Development: Guides system, hardware, and software design and validation.
Production, Operation, Service, and Decommissioning: Ensures safety during these phases.
Supporting Processes: Covers configuration management, tool qualification, and more.
ASIL-Oriented Safety Analyses: Defines Automotive Safety Integrity Levels (ASILs), which classify risks from A (low) to D (highest).
Guidelines on ISO 26262: Offers clarifications and examples.
Importance
ISO 26262 helps automotive manufacturers and suppliers systematically address safety risks, ensuring compliance and building consumer trust. It also promotes innovation by providing a clear framework for managing complex E/E systems in modern vehicles, including those involving autonomous technologies.
In essence, ISO 26262 is a critical foundation for ensuring the functional safety of today's increasingly complex and automated vehicles.