Fault diagnosis of an ABS system using Petri nets

In this paper we consider the brake system of a vehicle whose wheels are equipped with Anti-lock Braking Systems (ABS). We assume that the sensors that are responsible of the activation of the ABS are subject to faults. We first show how such a system can be modeled using labeled Petri nets and the notion of concurrent composition. Then, we show how fault diagnosis and diagnosability analysis can be performed on such a system using appropriate techniques based on Petri nets.