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Conference Paper (international conference)

Chain of four integrators as a possible essence of the under-actuated planar walking

Čelikovský Sergej, Anderle Milan

: IFAC-PapersOnLine. Volume 54, Issue 14 - 3rd IFAC Conference on Modelling, Identification and Control of Nonlinear Systems MICNON 2021, p. 60-65

: IFAC Conference on Modelling, Identification and Control of Nonlinear Systems MICNON 2021 /3./, (Tokyo, JP, 20210915)

: GA21-03689S, GA ČR

: Underactuated walking, Feedback linearization, Collocated virtual holonomic constraints

: 10.1016/j.ifacol.2021.10.329

: http://library.utia.cas.cz/separaty/2021/TR/celikovsky-0545899.pdf

(eng): This paper continues the previously published research showing that for the three-link there always exist collocated virtual holonomic constraints for the torso and mechanical parameters readjustment such that the resulting restricted dynamics is state and feedback equivalent to the chain of four integrators. In such a way, the role of the torso in walking patterns design achieves nice and clear control-theoretic interpretation. To underline a potential of that interesting feature, a thorough numerical optimization based design of suitable trajectories for the integrator chains is performed in this paper. Successful solution is then used to design hybrid stable multi-step walking for the three-link demonstrated by the simulations as well.

: 20205

07.01.2019 - 08:39