Short Circuit Localization in Automotive Ringstructured Power Nets based on Graph Theory

The constantly increasing demands for safety and comfort in modern vehicles require a highly available onboard energy network. Alternative onboard network architectures such as ring networks could play a role in this concern in the future. Thus, new methods are required to cope with the higher complexity of such systems at the same time. This paper addresses the problem of localizing electrical faults in an automotive power net with ring architecture using the example of short circuits. We propose a graph-based approach and introduce a graph-theoretical measure based on the reach-centrality to locate such faults in the system.