Gait Optimization of a Rolling Knee Biped at Low Walking Speeds

Mathieu Hobon, Nafissa Lakbakbi Elyaaqoubi, Gabriel Abba

2013

Abstract

This paper addresses an optimization problem of trajectories for a biped robot with a new modelled structure of knees which is called rolling knee (RK). The first part of article is to present the new kinematic knee on a biped robot and the different models used to know the dynamic of the robot during a walking step. The gait is cyclic and simplified by a Single Support Phase (SSP) followed by an impact. The second part is a comparison of the influence of the gait trajectory on the control, using cubic spline functions as well as the {\it B\'ezier} functions. The energetic criterion is minimized through optimization while using the simplex algorithm and the Lagrange penalty functions to meet the constraints of stability and deflection of mobile foot. The main result is the using of Bézier functions permit to improve the energy gain in slow walking speeds. These trajectories permit to the biped robot to walk progressively without energy disturbance unlike those with cubic spline functions.

Paper Citation

in Harvard Style

Hobon M., Lakbakbi Elyaaqoubi N. and Abba G. (2013). Gait Optimization of a Rolling Knee Biped at Low Walking Speeds . In Proceedings of the 10th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO, ISBN 978-989-8565-71-6, pages 207-214. DOI: 10.5220/0004457402070214

in Bibtex Style

@conference{icinco13,
author={Mathieu Hobon and Nafissa Lakbakbi Elyaaqoubi and Gabriel Abba},
title={Gait Optimization of a Rolling Knee Biped at Low Walking Speeds},
booktitle={Proceedings of the 10th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,},
year={2013},
pages={207-214},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004457402070214},
isbn={978-989-8565-71-6},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 10th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,
TI - Gait Optimization of a Rolling Knee Biped at Low Walking Speeds
SN - 978-989-8565-71-6
AU - Hobon M.
AU - Lakbakbi Elyaaqoubi N.
AU - Abba G.
PY - 2013
SP - 207
EP - 214
DO - 10.5220/0004457402070214