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TeleImpedance: Exploring the role of common-mode and configuration- dependant stiffness

  • University of Pisa
  • Istituto Italiano di Tecnologia
  • Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

35 Scopus citations

Abstract

Humans explore and adapt neuro-motor strategies to cope with limitations of multi-joint impedance regulation mechanism. For instance, predictive control of degrees of redundancy further regulates the endpoint impedance in addition to co-contractions. Inspired by these observations, this paper proposes a novel Tele-Impedance algorithm that replicates the human's arm endpoint stiffness in robot by controlling the common-mode and configuration-dependant stiffness. Design of the controller and its stability is addressed and experimentally evaluated in robotic peg-in-hole task. Results of the proposed method are compared to the ones derived from Tele-Impedance implemented using classical Cartesian stiffness control. The interaction performance achieved highlights the possibility of adopting common mode stiffness in robots with adequate degrees of redundancy, in order to realize the desired task space impedance.

Original languageEnglish
Title of host publication2012 12th IEEE-RAS International Conference on Humanoid Robots, Humanoids 2012
PublisherIEEE Computer Society
Pages363-369
Number of pages7
ISBN (Print)9781467313698
DOIs
StatePublished - 2012
Externally publishedYes
Event12th IEEE-RAS International Conference on Humanoid Robots, Humanoids 2012 - Osaka, Japan
Duration: 29 Nov 20121 Dec 2012

Publication series

NameIEEE-RAS International Conference on Humanoid Robots
ISSN (Print)2164-0572
ISSN (Electronic)2164-0580

Conference

Conference12th IEEE-RAS International Conference on Humanoid Robots, Humanoids 2012
Country/TerritoryJapan
CityOsaka
Period29/11/121/12/12

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