Learning-based legged locomotion: State of the art and future perspectives

S Ha, J Lee, M van de Panne, Z **e… - … Journal of Robotics …, 2024‏ - journals.sagepub.com
Legged locomotion holds the premise of universal mobility, a critical capability for many real-
world robotic applications. Both model-based and learning-based approaches have …

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 …

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 …

Layered control for cooperative locomotion of two quadrupedal robots: Centralized and distributed approaches

J Kim, RT Fawcett, VR Kamidi… - IEEE Transactions on …, 2023‏ - ieeexplore.ieee.org
This article presents a layered control approach for real-time trajectory planning and control
of robust cooperative locomotion by two holonomically constrained quadrupedal robots. A …

Learning agile locomotion and adaptive behaviors via rl-augmented mpc

Y Chen, Q Nguyen - 2024 IEEE International Conference on …, 2024‏ - ieeexplore.ieee.org
In the context of legged robots, adaptive behavior involves adaptive balancing and adaptive
swing foot reflection. While adaptive balancing counteracts perturbations to the robot …

Task-driven hybrid model reduction for dexterous manipulation

W **, M Posa - IEEE Transactions on Robotics, 2024‏ - ieeexplore.ieee.org
In contact-rich tasks, like dexterous manipulation, the hybrid nature of making and breaking
contact creates challenges for model representation and control. For example, choosing and …

Beyond inverted pendulums: Task-optimal simple models of legged locomotion

YM Chen, J Hu, M Posa - IEEE Transactions on Robotics, 2024‏ - ieeexplore.ieee.org
Reduced-order models (ROMs) are popular in online motion planning due to their simplicity.
A good ROM for control captures critical task-relevant aspects of the full dynamics while …

Reinforcement learning for reduced-order models of legged robots

YM Chen, H Bui, M Posa - 2024 IEEE International Conference …, 2024‏ - ieeexplore.ieee.org
Model-based approaches for planning and control for bipedal locomotion have a long
history of success. It can provide stability and safety guarantees while being effective in …

H2- and H-Optimal Model Predictive Controllers for Robust Legged Locomotion

A Pandala, AD Ames, KA Hamed - IEEE Open Journal of …, 2024‏ - ieeexplore.ieee.org
This paper formally develops robust optimal predictive control solutions that can
accommodate disturbances and stabilize periodic legged locomotion. To this end, we build …

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 …