ISO 26262 system level functional safety validation for battery management systems in automobiles

Functional safety validation of electrical and electronic systems based on ISO26262 is an activity of critical nature as it can protect the life of the humans using the automobiles from unintended faults and accidents. This paper is an approach for the implementation of ISO26262 system level functional safety validation of the battery management system in automobiles. Test case generation methods, traceability to technical safety requirements are discussed. Battery management system architecture, test system architecture, functional safety validation approach is considered in detail. With the help of three examples, the process of creating system level functional safety test cases from hazard, safety goal and technical safety requirements are explained. This paper is putting forward an end to end approach for the system level functional safety validation of electric and electronic systems using ISO26262 taking battery management system in automobiles as a reference.