Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion

Controlling quadruped robots during dynamic motions presents significant challenges due to constraints on ground reaction forces and the inherent complexity of their dynamics. Model predictive control (MPC) has shown promise in addressing these challenges. However, the performance of MPC strongly re...

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Main Authors: Deok Ha Kim, Jong Hyeon Park
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10418132/
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author Deok Ha Kim
Jong Hyeon Park
author_facet Deok Ha Kim
Jong Hyeon Park
author_sort Deok Ha Kim
collection DOAJ
description Controlling quadruped robots during dynamic motions presents significant challenges due to constraints on ground reaction forces and the inherent complexity of their dynamics. Model predictive control (MPC) has shown promise in addressing these challenges. However, the performance of MPC strongly relies on the accuracy and complexity of the model, making the modeling process critical for dynamic locomotion control. This paper introduces a novel approach using the reduced single rigid body model (SRBM) and an associated MPC for achieving high-frequency control–crucial for highly dynamic locomotion. The reduced SRBM is derived by isolating the key components responsible for robot balance from the full SRBM, reducing model complexity without compromising control performance. Additionally, the planar kinematics is developed that considers the motions neglected in the reduced model. This enables the design of foot trajectories that facilitate omni-directional motion and yaw control. To validate the proposed method, computer simulations are conducted under various scenarios. The simulations demonstrate that the quadruped robot can achieve galloping speeds of up to 7 m/s while remaining stable even when subjected to a lateral disturbance of 200 N.
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spelling doaj.art-6d9061bf492847cfb67e9b01f6c1dc482024-02-09T00:01:31ZengIEEEIEEE Access2169-35362024-01-0112200032001810.1109/ACCESS.2024.336047910418132Reduced Model Predictive Control Toward Highly Dynamic Quadruped LocomotionDeok Ha Kim0https://orcid.org/0000-0002-2532-1703Jong Hyeon Park1https://orcid.org/0000-0001-6263-375XDepartment of Mechanical Engineering, Hanyang University, Seoul, South KoreaDepartment of Mechanical Engineering, Hanyang University, Seoul, South KoreaControlling quadruped robots during dynamic motions presents significant challenges due to constraints on ground reaction forces and the inherent complexity of their dynamics. Model predictive control (MPC) has shown promise in addressing these challenges. However, the performance of MPC strongly relies on the accuracy and complexity of the model, making the modeling process critical for dynamic locomotion control. This paper introduces a novel approach using the reduced single rigid body model (SRBM) and an associated MPC for achieving high-frequency control–crucial for highly dynamic locomotion. The reduced SRBM is derived by isolating the key components responsible for robot balance from the full SRBM, reducing model complexity without compromising control performance. Additionally, the planar kinematics is developed that considers the motions neglected in the reduced model. This enables the design of foot trajectories that facilitate omni-directional motion and yaw control. To validate the proposed method, computer simulations are conducted under various scenarios. The simulations demonstrate that the quadruped robot can achieve galloping speeds of up to 7 m/s while remaining stable even when subjected to a lateral disturbance of 200 N.https://ieeexplore.ieee.org/document/10418132/Quadruped robotslegged robotsgallopinglegged locomotion controlmodel predictive controlomni-directional motion planning
spellingShingle Deok Ha Kim
Jong Hyeon Park
Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion
IEEE Access
Quadruped robots
legged robots
galloping
legged locomotion control
model predictive control
omni-directional motion planning
title Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion
title_full Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion
title_fullStr Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion
title_full_unstemmed Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion
title_short Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion
title_sort reduced model predictive control toward highly dynamic quadruped locomotion
topic Quadruped robots
legged robots
galloping
legged locomotion control
model predictive control
omni-directional motion planning
url https://ieeexplore.ieee.org/document/10418132/
work_keys_str_mv AT deokhakim reducedmodelpredictivecontroltowardhighlydynamicquadrupedlocomotion
AT jonghyeonpark reducedmodelpredictivecontroltowardhighlydynamicquadrupedlocomotion