Learning robust perceptive locomotion for quadrupedal robots in the wild

T Miki, J Lee, J Hwangbo, L Wellhausen, V Koltun… - Science robotics, 2022 - science.org
Legged robots that can operate autonomously in remote and hazardous environments will
greatly increase opportunities for exploration into underexplored areas. Exteroceptive …

Learning quadrupedal locomotion over challenging terrain

J Lee, J Hwangbo, L Wellhausen, V Koltun, M Hutter - Science robotics, 2020 - science.org
Legged locomotion can extend the operational domain of robots to some of the most
challenging environments on Earth. However, conventional controllers for legged …

Blind bipedal stair traversal via sim-to-real reinforcement learning

J Siekmann, K Green, J Warila, A Fern… - arXiv preprint arXiv …, 2021 - arxiv.org
Accurate and precise terrain estimation is a difficult problem for robot locomotion in real-
world environments. Thus, it is useful to have systems that do not depend on accurate …

Legged locomotion over irregular terrains: State of the art of human and robot performance

A Torres-Pardo, D Pinto-Fernández… - Bioinspiration & …, 2022 - iopscience.iop.org
Legged robotic technologies have moved out of the lab to operate in real environments,
characterized by a wide variety of unpredictable irregularities and disturbances, all this in …

Representation-free model predictive control for dynamic motions in quadrupeds

Y Ding, A Pandala, C Li, YH Shin… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article presents a novel representation-free model predictive control (RF-MPC)
framework for controlling various dynamic motions of a quadrupedal robot in three …

Self-reconfigurable multilegged robot swarms collectively accomplish challenging terradynamic tasks

Y Ozkan-Aydin, DI Goldman - Science Robotics, 2021 - science.org
Swarms of ground-based robots are presently limited to relatively simple environments,
which we attribute in part to the lack of locomotor capabilities needed to traverse complex …

Offline motion libraries and online MPC for advanced mobility skills

M Bjelonic, R Grandia, M Geilinger… - … Journal of Robotics …, 2022 - journals.sagepub.com
We describe an optimization-based framework to perform complex locomotion skills for
robots with legs and wheels. The generation of complex motions over a long-time horizon …

TAMOLS: Terrain-aware motion optimization for legged systems

F Jenelten, R Grandia, F Farshidian… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Terrain geometry is, in general, nonsmooth, nonlinear, nonconvex, and, if perceived through
a robot-centric visual unit, appears partially occluded and noisy. This article presents the …

Jumping over obstacles with MIT Cheetah 2

HW Park, PM Wensing, S Kim - Robotics and Autonomous Systems, 2021 - Elsevier
This paper presents a planning framework for jumping over obstacles with quadruped
robots. The framework accomplishes planning via a structured predictive control strategy …

Whole-body mpc and online gait sequence generation for wheeled-legged robots

M Bjelonic, R Grandia, O Harley… - 2021 IEEE/RSJ …, 2021 - ieeexplore.ieee.org
Our paper proposes a model predictive controller as a single-task formulation that
simultaneously optimizes wheel and torso motions. This online joint velocity and ground …