
Explore the structure of iso 26262:2018, covering management of functional safety, hazard analysis and risk assessment, safety goals, and the functional safety concept, along with item definition and safety cases.
Define top level safety goals for each malfunction by selecting worst case scenarios and ACL ratings, then derive system, hardware, and software requirements to cover all safety relevant aspects.
End concept phase with a review of functional safety concept, assign independence level from highest ASL based on confirmation measure, and anchor development phase and safety lifecycle.
Bonus lecture offers extra context on the ISO 26262-3:2018 concept phase, expanding understanding of the course's foundational topics.
This course is about ISO 26262-3: Concept phase. All relevant clauses of this part of ISO 26262 are explained in the course. The following clauses are considered:
Clause 5: Item definition
Clause 6: Hazard analysis and risk assessment
Clause 7: Functional safety concept
The following aspects are considered in Clause 5: Item definition:
Definition of functions
Creation of a Block Diagram
Environmental conditions
Legal aspects
External measures
The following aspects are considered in Clause 6: Hazard analysis and risk assessment:
Definition of hazardous scenarios
Assessment of hazardous scenarios
Detailed description of ISO 26262 parameters and categories for Exposure, Controllability and Severity (a lot of ISO 26262 examples are included)
Determination of the ASIL according to ISO 26262 risk matrix
Definition of safety goals
Review of the hazard analysis and risk assessment
The following aspects are considered in Clause 7: Functional safety concept
Refinement of the safety goals
Derivation of functional safety requirements
Preliminary architectural assumptions
Review of the functional safety concept
The course includes two exercises. One exercise for Clause 6: Hazard analysis and risk assessment and one exercise for Clause 7: Functional safety concept.
In the exercises you will learn step by step how to create a hazard analysis and risk assessment and how to develop the functional safety concept for an electric vehicle and the safety goal "Avoid an unintented acceleration".
A possible solution for the exercises is presented in a video.