High accuracy path tracking for vehicle in presence of sliding: application to farm vehicles automatic guidance for agricultural task

Abstract : When designing an accurate automated guidance system for vehicles, a major problem is sliding and pseudo-sliding effects. This is especially the case in agricultural applications, where five-centimetre accuracy with respect to the desired trajectory is required, although the vehicles are moving on slippery ground. It has been established that RTK GPS was a very suitable sensor to achieve automated guidance with such high precision: several control laws have been designed for vehicles equipped with this sensor, and provide the expected guidance accuracy as long as the vehicles do not slide. In previous work, further control developments have been proposed to take sliding into account: guidance accuracy in slippery environments has been shown to be preserved, except transiently at the beginning/end of curves. In this paper, the design of this control law is first recalled and discussed. A Model Predictive Control method is then applied in order to preserve accuracy of guidance even during these curvature transitions. Finally, the overall control scheme is implemented, and improvements with respect to previous guidance laws are demonstrated through full-scale experiments.
Type de document :
Article dans une revue
Autonomous Robots, Springer Verlag, 2006, 21 (1), pp. 79-97. 〈10.1007/s10514-006-7806-4〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-00094468
Contributeur : Benoit Thuilot <>
Soumis le : jeudi 14 septembre 2006 - 15:34:19
Dernière modification le : samedi 28 juillet 2018 - 20:44:03

Lien texte intégral

Identifiants

Citation

Roland Lenain, Benoît Thuilot, Christophe Cariou, Philippe Martinet. High accuracy path tracking for vehicle in presence of sliding: application to farm vehicles automatic guidance for agricultural task. Autonomous Robots, Springer Verlag, 2006, 21 (1), pp. 79-97. 〈10.1007/s10514-006-7806-4〉. 〈hal-00094468〉

Partager

Métriques

Consultations de la notice

166