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During learning trials, systems are exposed to different failure conditions which may break robotic parts before a safe behavior is discovered. Humans contour this problem by grounding their learning to a safer structure/control first and…

Robotics · Computer Science 2021-04-06 Keyan Zhai , Chu'an Li , Andre Rosendo

Quadruped robots are currently a widespread platform for robotics research, thanks to powerful Reinforcement Learning controllers and the availability of cheap and robust commercial platforms. However, to broaden the adoption of the…

Exoskeletons and orthoses are wearable mobile systems providing mechanical benefits to the users. Despite significant improvements in the last decades, the technology is not fully mature to be adopted for strenuous and non-programmed tasks.…

Robotics · Computer Science 2023-03-23 Farhad Nazari , Navid Mohajer , Darius Nahavandi , Abbas Khosravi , Saeid Nahavandi

In previous research, various types of aerial robots were developed to improve maneuverability or manipulation abilities. However, there was a challenge in achieving both mobility and manipulation capabilities simultaneously. This is…

Robotics · Computer Science 2024-02-06 Junichiro Sugihara , Takuzumi Nishio , Keisuke Nagato , Masayuki Nakao , Moju Zhao

Legged robots have excellent terrestrial mobility for traversing diverse environments and thus have the potential to be deployed in a wide variety of scenarios. However, they are susceptible to falling and leg malfunction during locomotion.…

When a big and heavy robot moves, it exerts large forces on the environment and on its own structure, its angular momentum can varysubstantially, and even the robot's structure can deform if there is a mechanical weakness. Under these…

Systems and Control · Electrical Eng. & Systems 2022-10-28 Nahuel A Villa , Pierre Fernbach , Maximilien Naveau , Guilhem Saurel , Ewen Dantec , Nicolas Mansard , Olivier Stasse

In this paper we tackle the problem of visually predicting surface friction for environments with diverse surfaces, and integrating this knowledge into biped robot locomotion planning. The problem is essential for autonomous robot…

Robotics · Computer Science 2017-06-28 Martim Brandao , Yukitoshi Minami Shiguematsu , Kenji Hashimoto , Atsuo Takanishi

This paper proposes a novel control framework for agile and robust bipedal locomotion, addressing model discrepancies between full-body and reduced-order models. Specifically, assumptions such as constant centroidal inertia have introduced…

Robotics · Computer Science 2024-09-17 Seung Hyeon Bang , Jaemin Lee , Carlos Gonzalez , Luis Sentis

This research provides a theoretical foundation for modeling and real-time estimation of both the pose and inertial parameters of a free-floating multi-link system with link thrusters, which are essential for safe and effective controller…

Robotics · Computer Science 2025-09-09 Nicholas B. Andrews , Kristi A. Morgansen

Bipedal robots are a prime example of systems which exhibit highly nonlinear dynamics, underactuation, and undergo complex dissipative impacts. This paper discusses methods used to overcome a wide variety of uncertainties, with the end…

Optimization and Control · Mathematics 2018-10-04 Shishir Kolathaya , Jacob Reher , Aaron D. Ames

Recent advances in quadrupedal robots have demonstrated impressive agility and the ability to traverse diverse terrains. However, hardware issues, such as motor overheating or joint locking, may occur during long-distance walking or…

Robotics · Computer Science 2025-02-11 Seunghyun Lee , I Made Aswin Nahrendra , Dongkyu Lee , Byeongho Yu , Minho Oh , Hyun Myung

Guidance robots that can guide people and avoid various obstacles, could potentially be owned by more visually impaired people at a fairly low cost. Most of the previous guidance robots for the visually impaired ignored the human response…

Robotics · Computer Science 2023-06-26 Yanbo Chen , Zhengzhe Xu , Zhuozhu Jian , Gengpan Tang , Yunong Yangli , Anxing Xiao , Xueqian Wang , Bin Liang

Intelligent service robots require the ability to perform a variety of tasks in dynamic environments. Despite the significant progress in robotic grasping, it is still a challenge for robots to decide grasping position when given different…

Robotics · Computer Science 2021-11-30 Ming Sun , Yue Gao

A two-wheeled self-balancing robot is an example of an inverse pendulum and is an inherently non-linear, unstable system. The fundamental concept of the proposed framework "Epersist" is to overcome the challenge of counterbalancing an…

Robotics · Computer Science 2022-07-26 Ghanta Sai Krishna , Dyavat Sumith , Garika Akshay

Robust and energy-efficient bipedal locomotion in robotics is still a challenging topic. In order to address issues in this field, we can take inspiration from nature, by studying human locomotion. The Spring-Loaded Inverted Pendulum (SLIP)…

Robotics · Computer Science 2017-06-02 Ludo C. Visser , Stefano Stramigioli , Raffaella Carloni

The simulation-to-reality (sim-to-real) transfer of large-scale hydraulic robots presents a significant challenge in robotics because of the inherent slow control response and complex fluid dynamics. The complex dynamics result from the…

Robotics · Computer Science 2026-01-19 Minho Lee , Hyeonseok Kim , Jin Tak Kim , Sangshin Park , Jeong Hyun Lee , Jungsan Cho , Jemin Hwangbo

To overcome the obstructions imposed by high-dimensional bipedal models, we embed a stable walking motion in an attractive low-dimensional surface of the system's state space. The process begins with trajectory optimization to design an…

Dynamical Systems · Mathematics 2017-11-08 Xingye Da , Jessy Grizzle

Future robots will navigate perilous, remote environments with resilience and autonomy. Researchers have proposed building robots with compliant bodies to enhance robustness, but this approach often sacrifices the autonomous capabilities…

Human-robot physical interaction (pHRI) is a rapidly evolving research field with significant implications for physical therapy, search and rescue, and telemedicine. However, a major challenge lies in accurately understanding human…

Highly articulated organisms serve as blueprints for incredibly dexterous mechanisms, but building similarly capable robotic counterparts has been hindered by the difficulties of developing electromechanical actuators with both the high…

Robotics · Computer Science 2023-10-31 Patrick Lancaster , Christoforos Mavrogiannis , Siddhartha Srinivasa , Joshua Smith