A Safety Concept for an Automotive Lithium-based Battery Management System

This publication describes a safety concept for an automotive domain battery management system in compliance with ISO 26262. First, Lithium-based battery hazards and risks are assessed, associated safety goals are defined to reduce previously identified risks and automotive safety integrity levels are assigned. Then, a safety architecture that meets previous safety goals and requirements is described at system and subsystem level. This safety architecture describes the overall technical safety concept, diagnosis strategy and measures to reduce the probability of systematic and random faults.