Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot

The Szabad(ka)-II 18 DOF walking robot and its simulation model is suitable for research into hexapod walking algorithm and motion control. The complete dynamic model has already been built, and is used as a black box for walking optimization in this research. First, optimal straight line walking wa...

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Main Authors: István Kecskés, Péter Odry
Format: Article
Language:English
Published: SAGE Publishing 2014-11-01
Series:International Journal of Advanced Robotic Systems
Online Access:https://doi.org/10.5772/59102
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author István Kecskés
Péter Odry
author_facet István Kecskés
Péter Odry
author_sort István Kecskés
collection DOAJ
description The Szabad(ka)-II 18 DOF walking robot and its simulation model is suitable for research into hexapod walking algorithm and motion control. The complete dynamic model has already been built, and is used as a black box for walking optimization in this research. First, optimal straight line walking was chosen as our objective, since the robot mainly moves in this mode. This case can be tested and validated as well on the current version of our robot. An ellipse-based leg trajectory has been generated for this low-cost straight line walking. Currently a simple new Fuzzy-PI controller with three input variables is being constructed and compared with an previously used PI controller. The purpose of defining the rules and its optimization are to obtain a controller that provides walking with higher quality. Both the compared controllers have been optimized together with the parameters of the leg trajectory. The particle swarm optimization (PSO) method was chosen from several methods with our benchmark-based selection research and the help of specific test functions; moreover the previous research (the comparison of genetic algorithm (GA) and PSO) also led to this conclusion.
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spelling doaj.art-c7668eeb1c1249ea83d6d1c1682ec93c2022-12-22T00:54:24ZengSAGE PublishingInternational Journal of Advanced Robotic Systems1729-88142014-11-011110.5772/5910210.5772_59102Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking RobotIstván KecskésPéter OdryThe Szabad(ka)-II 18 DOF walking robot and its simulation model is suitable for research into hexapod walking algorithm and motion control. The complete dynamic model has already been built, and is used as a black box for walking optimization in this research. First, optimal straight line walking was chosen as our objective, since the robot mainly moves in this mode. This case can be tested and validated as well on the current version of our robot. An ellipse-based leg trajectory has been generated for this low-cost straight line walking. Currently a simple new Fuzzy-PI controller with three input variables is being constructed and compared with an previously used PI controller. The purpose of defining the rules and its optimization are to obtain a controller that provides walking with higher quality. Both the compared controllers have been optimized together with the parameters of the leg trajectory. The particle swarm optimization (PSO) method was chosen from several methods with our benchmark-based selection research and the help of specific test functions; moreover the previous research (the comparison of genetic algorithm (GA) and PSO) also led to this conclusion.https://doi.org/10.5772/59102
spellingShingle István Kecskés
Péter Odry
Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot
International Journal of Advanced Robotic Systems
title Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot
title_full Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot
title_fullStr Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot
title_full_unstemmed Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot
title_short Optimization of PI and Fuzzy-PI Controllers on Simulation Model of Szabad(ka)-II Walking Robot
title_sort optimization of pi and fuzzy pi controllers on simulation model of szabad ka ii walking robot
url https://doi.org/10.5772/59102
work_keys_str_mv AT istvankecskes optimizationofpiandfuzzypicontrollersonsimulationmodelofszabadkaiiwalkingrobot
AT peterodry optimizationofpiandfuzzypicontrollersonsimulationmodelofszabadkaiiwalkingrobot