Capturability-based Analysis, Optimization and Control of 3D Bipedal Walking

Stéphane Caron, Adrien Escande, Leonardo Lanari and Bastien Mallein. Submitted January 2018.

Abstract

Capturability analysis of the linear inverted pendulum model (LIPM) enabled walking over even terrains based on the capture point. We generalize this analysis to the inverted pendulum model (IPM) and show how it enables 3D walking over uneven terrains based on capture inputs. Thanks to a tailored optimization scheme, we can compute these inputs fast enough for a real-time control loop. We implement this approach as open-source software and demonstrate it in simulations.

Video

Content

pdf Pre-print
pdf Slides: presentation given at NTU on 14 May 2018
github Capture Problem Solver (C++)
github Capture Walking Controller (Python)
pdf Controller manual in HTML or PDF

BibTeX

@unpublished{caron2018capturability,
  title = {Capturability-based Analysis, Optimization and Control of 3D Bipedal Walking},
  author = {Caron, St{\'e}phane and Escande, Adrien and Lanari, Leonardo and Mallein, Bastien},
  url = {https://hal.archives-ouvertes.fr/hal-01689331},
  note = {Submitted},
  year = {2018},
  month = jan,
}

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