4. Conclusion

In this article, the best-known methods for diagnosing Hybrid Dynamical Systems (HDS) were presented and compared, using a tank-based system equipped with a pump and a valve. This paper has shown the importance of taking into account both the continuous and discrete dynamics of SDHs, as well as the interaction between these dynamics, to achieve a correct and reliable diagnosis of parametric and discrete faults affecting the behavior of these systems.

However, these SDH diagnostic methods perform diagnosis centrally, using a single diagnostician for the whole system. They are therefore not suitable for diagnosing large-scale SDH. This is mainly due to the use of a global model, which very often generates combinatorial explosion problems due to the large size of the SDH. This is why we need to develop decentralized diagnostic approaches without the use of a global...