Perceptive locomotion through nonlinear model-predictive control

R Grandia, F Jenelten, S Yang… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Dynamic locomotion in rough terrain requires accurate foot placement, collision avoidance,
and planning of the underactuated dynamics of the system. Reliably optimizing for such …

Learning agile and dynamic motor skills for legged robots

J Hwangbo, J Lee, A Dosovitskiy, D Bellicoso… - Science Robotics, 2019 - science.org
Legged robots pose one of the greatest challenges in robotics. Dynamic and agile
maneuvers of animals cannot be imitated by existing methods that are crafted by humans. A …

Optimization-based control for dynamic legged robots

PM Wensing, M Posa, Y Hu, A Escande… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In a world designed for legs, quadrupeds, bipeds, and humanoids have the opportunity to
impact emerging robotics applications from logistics, to agriculture, to home assistance. The …

A unified mpc framework for whole-body dynamic locomotion and manipulation

JP Sleiman, F Farshidian, MV Minniti… - IEEE Robotics and …, 2021 - ieeexplore.ieee.org
In this letter, we propose a whole-body planning framework that unifies dynamic locomotion
and manipulation tasks by formulating a single multi-contact optimal control problem. We …

Crocoddyl: An efficient and versatile framework for multi-contact optimal control

C Mastalli, R Budhiraja, W Merkt… - … on Robotics and …, 2020 - ieeexplore.ieee.org
We introduce Crocoddyl (Contact RObot COntrol by Differential DYnamic Library), an open-
source framework tailored for efficient multi-contact optimal control. Crocoddyl efficiently …

Gait and trajectory optimization for legged systems through phase-based end-effector parameterization

AW Winkler, CD Bellicoso, M Hutter… - IEEE Robotics and …, 2018 - ieeexplore.ieee.org
We present a single trajectory optimization formulation for legged locomotion that
automatically determines the gait sequence, step timings, footholds, swing-leg motions, and …

Whole-body nonlinear model predictive control through contacts for quadrupeds

M Neunert, M Stäuble, M Giftthaler… - IEEE Robotics and …, 2018 - ieeexplore.ieee.org
In this letter, we present a whole-body nonlinear model predictive control approach for rigid
body systems subject to contacts. We use a full-dynamic system model which also includes …

Multi-layered safety for legged robots via control barrier functions and model predictive control

R Grandia, AJ Taylor, AD Ames… - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
The problem of dynamic locomotion over rough terrain requires both accurate foot
placement together with an emphasis on dynamic stability. Existing approaches to this …

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 …

ALTRO: A fast solver for constrained trajectory optimization

TA Howell, BE Jackson… - 2019 IEEE/RSJ …, 2019 - ieeexplore.ieee.org
Trajectory optimization is a widely used tool for robot motion planning and control. Existing
solvers for these problems either rely on off-the-shelf nonlinear programming solvers that …