Whole-body balance stability regions for multi-level momentum and step** strategies

WZ Peng, C Mummolo, H Song, JH Kim - Mechanism and Machine Theory, 2022 - Elsevier
A unified framework is established for general balance stability criteria of biped systems. The
stability regions of balanced and steppable states are partitions of the center-of-mass (COM) …

[HTML][HTML] Development of Push-Recovery control system for humanoid robots using deep reinforcement learning

E Aslan, MA Arserim, A Uçar - Ain Shams Engineering Journal, 2023 - Elsevier
This paper focuses on the push-recovery problem of bipedal humanoid robots affected by
external forces and pushes. Since they are structurally unstable, balance is the most …

Push recovery control for humanoid robot using reinforcement learning

H Kim, D Seo, D Kim - 2019 Third IEEE International …, 2019 - ieeexplore.ieee.org
A humanoid robot similar to a human is structurally unstable, so the push recovery control is
essential. The proposed push recovery controller consists of a IMU sensor part, a highlevel …

Humanoid balance control using centroidal angular momentum based on hierarchical quadratic programming

MJ Kim, D Lim, G Park, J Park - 2022 IEEE/RSJ International …, 2022 - ieeexplore.ieee.org
Maintaining balance to external pushes is one of the most important features for a humanoid
to walk in a real environment. In particular, methods for counteracting to pushes using the …

A model predictive capture point control framework for robust humanoid balancing via ankle, hip, and step** strategies

MJ Kim, D Lim, G Park, J Park - arxiv preprint arxiv:2307.13243, 2023 - arxiv.org
The robust balancing capability of humanoid robots has been considered one of the crucial
requirements for their mobility in real environments. In particular, many studies have been …

Stability region-based analysis of walking and push recovery control

WZ Peng, H Song, JH Kim - Journal of …, 2021 - asmedigitalcollection.asme.org
To achieve walking and push recovery successfully, a biped robot must be able to determine
if it can maintain its current contact configuration or transition into another one without falling …

Effects of object mass on balancing for whole-body lifting tasks

H Song, WZ Peng, JH Kim - 2023 IEEE-RAS 22nd International …, 2023 - ieeexplore.ieee.org
Despite the importance and prevalence of loco-manipulation tasks by humanoids, existing
criteria and control methods for stability are mostly developed for unloaded legged gait. In …

Mixed‐integer quadratic programming for automatic walking footstep placement, duration, and rotation

MROA Maximo, RJM Afonso - Optimal Control Applications and …, 2020 - Wiley Online Library
This paper presents a mixed‐integer model predictive controller for walking. In the proposed
scheme, mixed‐integer quadratic programs (MIQP) are solved online to simultaneously …

Mechatronic design of ARC humanoid robot open platform: First fully 3D printed kid-sized robot

S Saeedvand, HS Aghdasi, J Baltes - International Journal of …, 2020 - World Scientific
Although there are several popular and capable humanoid robot designs available in the kid-
size range, they lack some important characteristics: affordability, being user-friendly, using …

Design of biomechanical legs with a passive toe joint for enhanced human-like walking

R Zaier, A Al-Yahmedi - The Journal of Engineering Research …, 2017 - journals.squ.edu.om
This paper presents the design procedure of a biomechanical leg, with a passive toe joint,
which is capable of mimicking the human walking. This leg has to provide the major features …