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Control System Development for a Novel Wire-Driven Hyper-Redundant Chain Robot, 3D-Trunk

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2 Author(s)
KeJun Ning ; Bernstein Center for Computational Neuroscience, Institute of Physics III, University of Göttingen, Göttingen, Germany ; Florentin Wörgötter

This paper presents the control system for our novel hyper-redundant chain robot system “3D-Trunk” demonstrating an operational principle that is much different from traditional solutions. Its main features are that all the joints are passive, state controllable and share common inputs introduced by wire-driven control. For this unique design, a force-oriented method is employed to control the driving wires. The mechanical analysis, as well as an analysis of the differential driven mechanism of this design is formulated. The design of a novel wire tension state sensing component and its operation are also described. The system is controlled by distributed embedded controllers. The actuators’ coordination mechanism and the bang–bang controller-based closed-loop control implementation of this novel prototype are discussed from a mechatronic system level. Thus, this paper, together with a predecessor , presents all required details allowing for building and controlling 3D-Trunk.

Published in:

IEEE/ASME Transactions on Mechatronics  (Volume:17 ,  Issue: 5 )