Authors:
Abdelkrim Brahmi
1
;
Maarouf Saad
2
;
Guy Gauthier
1
;
Wen-Hong Zhu
3
and
Jawhar Ghommam
4
Affiliations:
1
École de Technologie Supérieure, Canada
;
2
Ecole de Technologie Supérieure, Canada
;
3
Space Exploration Canadian Space Agency, Canada
;
4
Ecole National d'Ingenieurs, Tunisia
Keyword(s):
Virtual Decomposition Control, Adaptive Control, Centralized/Decentralized Control, Mobile Manipulator Robot.
Related
Ontology
Subjects/Areas/Topics:
Control and Supervision Systems
;
Informatics in Control, Automation and Robotics
;
Mobile Robots and Autonomous Systems
;
Robot Design, Development and Control
;
Robotics and Automation
Abstract:
This paper presents an adaptive control scheme for a mobile manipulator robot based on the virtual decomposition control (VDC). The control strategy was tested on three degrees of freedom manipulator arm mounted on two degrees of freedom mobile platform to track a desired trajectory. The desired trajectory is obtained from the workspace trajectory using the inverse kinematics. Differently to the known decentralized control that divides the mobile manipulator into two subsystems, in this paper, the mobile manipulator has N degrees of freedom, divided virtually into N subsystems. The applicability of the proposed scheme is demonstrated in real time validation. The experimental results show the effectiveness of the VDC approach.