Model-based fault detection and diagnosis for hydraulic braking systems

Autor: Harald Straky, Rolf Isermann, Marco Muenchhof
Rok vydání: 2003
Předmět:
Zdroj: IFAC Proceedings Volumes. 36:307-312
ISSN: 1474-6670
DOI: 10.1016/s1474-6670(17)36509-6
Popis: This paper describes fault detection and diagnosis techniques for a hydraulic passenger car braking system. First, a model of the hydraulic braking system is derived in state space representation. This model is subsequentlyemployed for fault detection and diagnosis. Fault detection is based on the calculation of the loss volume, i.e. the amount of brake fluid consumed due to the presence of a fault. The type of fault is determined by means of a correlation analysis approach. Furthermore, the location of the fault can also be determined. This is accomplished by analyzing the master brake cylinder pressure signals. The paper also presents numerical results of data recorded at a braking system testbed which illustrates the feasibility of the proposed approaches.
Databáze: OpenAIRE