Biped walking using coronal and sagittal movements based on truncated fourier series

Authors:
Nima Shafii;Luís Paulo Reis;Nuno Lau
Affiliations:
DEI/FEUP - Informatics Engineering Department, Faculty of Engineering of the University of, Porto, Portugal and LIACC - Artificial Intelligence and Computer Science Lab., Porto, Portugal;DEI/FEUP - Informatics Engineering Department, Faculty of Engineering of the University of, Porto, Portugal and LIACC - Artificial Intelligence and Computer Science Lab., Porto, Portugal;UA - University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal and IEETA - Institute of Electronics and Telematics Engineering of Aveiro, Portugal
Venue:
RoboCup 2010
Year:
2011

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Abstract

Biped walking by using all joint movements and DOFs in both directions (sagittal plane and coronal plane) is one of the most complicated research topics in robotics. In this paper, angular trajectories of a stable biped walking for a humanoid robot are generated by a Truncated Fourier Series (TFS) approach. The movements of legs and arms in sagittal plane are implemented by an optimized gait generator and a new model is proposed that can also produce the movement of legs in coronal plane based on TFS. Particle Swarm Optimization (PSO) is used to find the best angular trajectories and optimize TFS. Experimental results show that the using joints movements in sagittal and coronal planes to compose the walking skill allowed the biped robot to walk faster than previous methods that only used the joints in sagittal plane.