In this paper, model and signal-based methods for supervision of suspension elements of a car are presented. A model-based approach using parameter estimation is used to determine the current parameters of a vehicle suspension. Exploiting the analytical redundancy, different faults, like weak dampers or sensor faults, can be distinguished. For fault detection the use of parity equations is shown. In addition, a signal-based approach is presented which makes a detection of tire pressure loss possible. All presented results were drawn from a test rig or from a driving car.
Fault detection and diagnosis of components of the vehicle vertical dynamics
Fehlerentdeckung und Diagnose von Bauteilen der Fahrzeugdynamik
1997
14 Seiten, 14 Bilder, 2 Tabellen, 19 Quellen
Conference paper
English
Fahrzeugdynamik , Fahrzeugfederung , Zustandsüberwachung , Diagnoseverfahren , mathematisches Modell , Schwingungsdämpfung , Differenzialgleichung , Fahrzeugrad , Schätzung , Fehlererkennung , Luftreifen , Prüfstand , Schwingungssystem , Resonanzfrequenz , Beschleunigen , Karosserie , Durchbiegung , Fahrversuch
96A4008 Fault detection and diagnosis of components of the vehicle vertical dynamics
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