Rough terrain navigation for legged robots using reachability planning and template learning

L Wellhausen, M Hutter - 2021 IEEE/RSJ International …, 2021 - ieeexplore.ieee.org
Navigation planning for legged robots has distinct challenges compared to wheeled and
tracked systems due to the ability to lift legs off the ground and step over obstacles. While …

Rapid and reliable quadruped motion planning with omnidirectional jum**

M Chignoli, S Morozov, S Kim - 2022 International Conference …, 2022 - ieeexplore.ieee.org
Dynamic jum** with legged robots poses a challenging problem in planning and control.
Formulating the jump optimization to allow fast online execution is difficult; efficiently using …

Croc: Convex resolution of centroidal dynamics trajectories to provide a feasibility criterion for the multi contact planning problem

P Fernbach, S Tonneau, M Taïx - 2018 IEEE/RSJ International …, 2018 - ieeexplore.ieee.org
We tackle the transition feasibility problem, that is the issue of determining whether there
exists a feasible motion connecting two configurations of a legged robot. To achieve this we …

Fast global motion planning for dynamic legged robots

J Norby, AM Johnson - 2020 IEEE/RSJ International …, 2020 - ieeexplore.ieee.org
This work presents a motion planning algorithm for legged robots capable of constructing
long-horizon dynamic plans in real-time. Many existing methods use models that prohibit …

SL1M: Sparse L1-norm Minimization for contact planning on uneven terrain

S Tonneau, D Song, P Fernbach… - … on Robotics and …, 2020 - ieeexplore.ieee.org
One of the main challenges of planning legged locomotion in complex environments is the
combinatorial contact selection problem. Recent contributions propose to use integer …

Efficient humanoid contact planning using learned centroidal dynamics prediction

YC Lin, B Ponton, L Righetti… - … Conference on Robotics …, 2019 - ieeexplore.ieee.org
Humanoid robots dynamically navigate an environment by interacting with it via contact
wrenches exerted at intermittent contact poses. Therefore, it is important to consider …

GPF-BG: A hierarchical vision-based planning framework for safe quadrupedal navigation

S Feng, Z Zhou, JS Smith, M Asselmeier… - … on Robotics and …, 2023 - ieeexplore.ieee.org
Safe quadrupedal navigation through unknown environments is a challenging problem. This
paper proposes a hierarchical vision-based planning framework (GPF-BG) integrating our …

Adaptive complexity model predictive control

J Norby, A Tajbakhsh, Y Yang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
This work introduces a formulation of model predictive control (MPC) which adaptively
reasons about the complexity of the model while maintaining feasibility and stability …

Solving footstep planning as a feasibility problem using l1-norm minimization

D Song, P Fernbach, T Flayols… - IEEE Robotics and …, 2021 - ieeexplore.ieee.org
One challenge of legged locomotion on uneven terrains is to deal with both the discrete
problem of selecting a contact surface for each footstep and the continuous problem of …

Contact planning for the anymal quadruped robot using an acyclic reachability-based planner

M Geisert, T Yates, A Orgen, P Fernbach… - Annual Conference …, 2019 - Springer
Despite the great progress in quadrupedal robotics during the last decade, selecting good
contacts (footholds) in highly uneven and cluttered environments still remains an open …