Learning free gait transition for quadruped robots via phase-guided controller

Y Shao, Y Jin, X Liu, W He, H Wang… - IEEE Robotics and …, 2021 - ieeexplore.ieee.org
Gaits and transitions are key components in legged locomotion. For legged robots,
describing and reproducing gaits as well as transitions remain longstanding challenges …

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 …

Articulated object interaction in unknown scenes with whole-body mobile manipulation

M Mittal, D Hoeller, F Farshidian… - 2022 IEEE/RSJ …, 2022 - ieeexplore.ieee.org
A kitchen assistant needs to operate human-scale objects, such as cabinets and ovens, in
unmapped environments with dynamic obstacles. Autonomous interactions in such …

Learning visual locomotion with cross-modal supervision

A Loquercio, A Kumar, J Malik - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
In this work, we show how to learn a visual walking policy that only uses a monocular RGB
camera and proprioception. Since simulating RGB is hard, we necessarily have to learn …

A collision-free mpc for whole-body dynamic locomotion and manipulation

JR Chiu, JP Sleiman, M Mittal… - … on robotics and …, 2022 - ieeexplore.ieee.org
In this paper, we present a real-time whole-body planner for collision-free legged mobile
manipulation. We enforce both self-collision and environment-collision avoidance as soft …

Robust convex model predictive control for quadruped locomotion under uncertainties

S Xu, L Zhu, HT Zhang, CP Ho - IEEE Transactions on Robotics, 2023 - ieeexplore.ieee.org
This article considers quadruped locomotion control in the presence of uncertainties. Two
types of structured uncertainties are considered, namely, uncertain friction constraints and …

An efficient locally reactive controller for safe navigation in visual teach and repeat missions

M Mattamala, N Chebrolu… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
To achieve successful field autonomy, mobile robots need to freely adapt to changes in their
environment. Visual navigation systems such as Visual Teach and Repeat (VT&R) often …

Agile but safe: Learning collision-free high-speed legged locomotion

T He, C Zhang, W Xiao, G He, C Liu, G Shi - arXiv preprint arXiv …, 2024 - arxiv.org
Legged robots navigating cluttered environments must be jointly agile for efficient task
execution and safe to avoid collisions with obstacles or humans. Existing studies either …

A real-time hierarchical control method for safe human–robot coexistence

B Liu, P Rocco, AM Zanchettin, F Zhao, G Jiang… - Robotics and Computer …, 2024 - Elsevier
In modern industrial environments, robots are expected to work close to human operators
collaborating with them in completing various tasks, eg, collaborative assembly or delivery of …

Real-time and efficient collision avoidance planning approach for safe human-robot interaction

H Liu, D Qu, F Xu, Z Du, K Jia, J Song, M Liu - Journal of Intelligent & …, 2022 - Springer
With the rapid development of robot perception and planning technology, robots are
gradually getting rid of fixed fences and working closely with humans in a shared …