Bond graphs were used to develop the one wheel model. Bond graphs are a concise pictorial representation of all types of dynamic interactions and are particularly well suited when actuators and control are included in an otherwise mechanical model of a vehicle. Here the one wheel model of Margolis (1998) is extended to include four wheels, but still subject to simplifying assumptions that allow the model to expose the essence of the vehicle dynamics. Bond graphs are used for this development. The model includes a suspension at each corner of the vehicle along with an actuator between each vehicle corner and the unsprung mass at that corner. The model includes individual electric brake actuators. A steering actuator is included that has a differential in the steering column so that an electric motor can steer additionally to the command from the driver without forcing the driver's hands to move. The intended use of the model is for control concept development for improved safety in vehicles.
A bond graph model incorporating sensors, actuators, and vehicle dynamics for developing controllers for vehicle safety
Bondgraphmodell mit Sensoren, Aktoren und Fahrzeugdynamik
2000
6 Seiten, 14 Bilder, 1 Tabelle, 13 Quellen
Conference paper
English
Fahrzeugdynamik , Modellsimulation , Sensor , Aktor , dynamisches Verhalten , Bremse , Elektromotor , Lenkrad , Fahrzeugfahrwerk , Fahrzeugfederung , elektromechanische Vorrichtung , Elektrohydraulik , Elektropneumatik , Graphentheorie , gerichteter Graph , Freiheitsgrad , Mechatronik , Fahrzeugsicherheit
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