Body trajectory optimisation of walking gait for a quadruped robot

Abstract To ensure that the robot can follow the planned trajectory, smooth switching between swinging legs and a smooth transition of motion process is realised. The previous motion planning work is analysed, and a method for improving the optimisation objective function and constraint conditions i...

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Main Authors: Minghuan Zhang, Yaguang Zhu, Ao Cao, Qibin Wei, Qiong Liu
Format: Article
Language:English
Published: Wiley 2023-09-01
Series:IET Cyber-systems and Robotics
Subjects:
Online Access:https://doi.org/10.1049/csy2.12094
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author Minghuan Zhang
Yaguang Zhu
Ao Cao
Qibin Wei
Qiong Liu
author_facet Minghuan Zhang
Yaguang Zhu
Ao Cao
Qibin Wei
Qiong Liu
author_sort Minghuan Zhang
collection DOAJ
description Abstract To ensure that the robot can follow the planned trajectory, smooth switching between swinging legs and a smooth transition of motion process is realised. The previous motion planning work is analysed, and a method for improving the optimisation objective function and constraint conditions is proposed to eliminate the sudden change of acceleration and reduce the peak value of acceleration change. This method eliminates the impact phenomenon in the motor drive process and reduces the motor drive energy consumption, thus ensuring the smooth and consistent movement of the robot. The results show that the improved optimisation method has a better motion effect than the previous approach in terms of centre of mass motion speed, trajectory fitting and body posture change, and realises more robust motion of quadruped robots in a senseless state.
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spelling doaj.art-dd958d433f954d49bb9fdc835e640cb12023-09-25T03:34:28ZengWileyIET Cyber-systems and Robotics2631-63152023-09-0153n/an/a10.1049/csy2.12094Body trajectory optimisation of walking gait for a quadruped robotMinghuan Zhang0Yaguang Zhu1Ao Cao2Qibin Wei3Qiong Liu4The Key Laboratory of Road Construction Technology and Equipment of MOE Chang'an University Xi'an ChinaThe Key Laboratory of Road Construction Technology and Equipment of MOE Chang'an University Xi'an ChinaThe Key Laboratory of Road Construction Technology and Equipment of MOE Chang'an University Xi'an ChinaThe Key Laboratory of Road Construction Technology and Equipment of MOE Chang'an University Xi'an ChinaThe Key Laboratory of Road Construction Technology and Equipment of MOE Chang'an University Xi'an ChinaAbstract To ensure that the robot can follow the planned trajectory, smooth switching between swinging legs and a smooth transition of motion process is realised. The previous motion planning work is analysed, and a method for improving the optimisation objective function and constraint conditions is proposed to eliminate the sudden change of acceleration and reduce the peak value of acceleration change. This method eliminates the impact phenomenon in the motor drive process and reduces the motor drive energy consumption, thus ensuring the smooth and consistent movement of the robot. The results show that the improved optimisation method has a better motion effect than the previous approach in terms of centre of mass motion speed, trajectory fitting and body posture change, and realises more robust motion of quadruped robots in a senseless state.https://doi.org/10.1049/csy2.12094bio‐inspired roboticsmotion planningtracking controltrajectory optimization
spellingShingle Minghuan Zhang
Yaguang Zhu
Ao Cao
Qibin Wei
Qiong Liu
Body trajectory optimisation of walking gait for a quadruped robot
IET Cyber-systems and Robotics
bio‐inspired robotics
motion planning
tracking control
trajectory optimization
title Body trajectory optimisation of walking gait for a quadruped robot
title_full Body trajectory optimisation of walking gait for a quadruped robot
title_fullStr Body trajectory optimisation of walking gait for a quadruped robot
title_full_unstemmed Body trajectory optimisation of walking gait for a quadruped robot
title_short Body trajectory optimisation of walking gait for a quadruped robot
title_sort body trajectory optimisation of walking gait for a quadruped robot
topic bio‐inspired robotics
motion planning
tracking control
trajectory optimization
url https://doi.org/10.1049/csy2.12094
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