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Stable locomotion in precipitous environments is an essential task for quadruped robots, requiring the ability to resist various external disturbances. Recent neural policies enhance robustness against disturbances by learning to resist…

Robotics · Computer Science 2024-06-13 Junfeng Long , Wenye Yu , Quanyi Li , Zirui Wang , Dahua Lin , Jiangmiao Pang

We present a unified model-based and data-driven approach for quadrupedal planning and control to achieve dynamic locomotion over uneven terrain. We utilize on-board proprioceptive and exteroceptive feedback to map sensory information and…

Robotics · Computer Science 2022-05-13 Siddhant Gangapurwala , Mathieu Geisert , Romeo Orsolino , Maurice Fallon , Ioannis Havoutis

Reinforcement learning necessitates meticulous reward shaping by specialists to elicit target behaviors, while imitation learning relies on costly task-specific data. In contrast, unsupervised skill discovery can potentially reduce these…

Robotics · Computer Science 2026-02-11 Ruopeng Cui , Yifei Bi , Haojie Luo , Wei Li

Legged manipulators extend robotic capabilities beyond static manipulation by integrating agile locomotion with versatile arm control. However, achieving precise manipulation while maintaining coordinated locomotion remains a major…

This paper presents a curriculum-based reinforcement learning framework for training precise and high-performance jumping policies for the robot `Olympus'. Separate policies are developed for vertical and horizontal jumps, leveraging a…

Robotics · Computer Science 2025-10-29 Jørgen Anker Olsen , Lars Rønhaug Pettersen , Kostas Alexis

Some of the most challenging environments on our planet are accessible to quadrupedal animals but remain out of reach for autonomous machines. Legged locomotion can dramatically expand the operational domains of robotics. However,…

Robotics · Computer Science 2020-10-23 Joonho Lee , Jemin Hwangbo , Lorenz Wellhausen , Vladlen Koltun , Marco Hutter

Deep reinforcement learning has recently been applied to a variety of robotics applications, but learning locomotion for robots with unconventional configurations is still limited. Prior work has shown that, despite the simple modeling of…

Robotics · Computer Science 2023-01-31 Jiaheng Hu , Tony Dear

This paper addresses the challenge of terrain-adaptive dynamic locomotion in humanoid robots, a problem traditionally tackled by optimization-based methods or reinforcement learning (RL). Optimization-based methods, such as model-predictive…

Robotics · Computer Science 2024-07-30 Shangqun Yu , Nisal Perera , Daniel Marew , Donghyun Kim

Learning-based methods have achieved strong performance for quadrupedal locomotion. However, several challenges prevent quadrupeds from learning helpful indoor skills that require interaction with environments and humans: lack of…

Robotics · Computer Science 2024-10-02 Qi Wu , Zipeng Fu , Xuxin Cheng , Xiaolong Wang , Chelsea Finn

Humans excel at robust bipedal walking in complex natural environments. In each step, they adequately tune the interaction of biomechanical muscle dynamics and neuronal signals to be robust against uncertainties in ground conditions.…

Animals have remarkable abilities to adapt locomotion to different terrains and tasks. However, robots trained by means of reinforcement learning are typically able to solve only a single task and a transferred policy is usually inferior to…

Robotics · Computer Science 2021-07-09 Arsen Kuzhamuratov , Dmitry Sorokin , Alexander Ulanov , A. I. Lvovsky

Bipedal locomotion is a key challenge in robotics, particularly for robots like Bolt, which have a point-foot design. This study explores the control of such underactuated robots using constrained reinforcement learning, addressing their…

Achieving controlled jumping behaviour for a quadruped robot is a challenging task, especially when introducing passive compliance in mechanical design. This study addresses this challenge via imitation-based deep reinforcement learning…

Robotics · Computer Science 2025-08-28 Georgios Apostolides , Wei Pan , Jens Kober , Cosimo Della Santina , Jiatao Ding

Animals such as rabbits and birds can instantly generate locomotion behavior in reaction to a dynamic, approaching object, such as a person or a rock, despite having possibly never seen the object before and having limited perception of the…

Robotics · Computer Science 2022-03-22 Shangqun Yu , Sreehari Rammohan , Kaiyu Zheng , George Konidaris

Quadruped robots have strong adaptability to extreme environments but may also experience faults. Once these faults occur, robots must be repaired before returning to the task, reducing their practical feasibility. One prevalent concern…

Robotics · Computer Science 2024-01-01 Xinyuan Wu , Wentao Dong , Hang Lai , Yong Yu , Ying Wen

Quadruped robots are often designed with rigid feet to simplify control and maintain stable contact during locomotion. While this approach is straightforward, it limits the ability of the legs to absorb impact forces and reuse stored…

Robotics · Computer Science 2026-05-15 Pramod Pal , Shishir Kolathaya , Ashitava Ghosal

In recent years, reinforcement learning (RL) based quadrupedal locomotion control has emerged as an extensively researched field, driven by the potential advantages of autonomous learning and adaptation compared to traditional control…

Robotics · Computer Science 2024-10-15 Maurya Gurram , Prakash Kumar Uttam , Shantipal S. Ohol

Electric quadruped robots used in outdoor exploration are susceptible to leg-related electrical or mechanical failures. Unexpected joint power loss and joint locking can immediately pose a falling threat. Typically, controllers lack the…

Robotics · Computer Science 2024-02-15 Taixian Hou , Jiaxin Tu , Xiaofei Gao , Zhiyan Dong , Peng Zhai , Lihua Zhang

Quadruped robots must exhibit robust walking capabilities in practical applications. In this work, we propose a novel approach that enables quadruped robots to pass various small obstacles, or "tiny traps". Existing methods often rely on…

Robotics · Computer Science 2024-09-13 Shaoting Zhu , Runhan Huang , Linzhan Mou , Hang Zhao

This paper introduces DogSurf - a newapproach of using quadruped robots to help visually impaired people navigate in real world. The presented method allows the quadruped robot to detect slippery surfaces, and to use audio and haptic…