Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach

This study designs and implements a wheeled bipedal robot (WBR) that combines the mobility of wheeled robots and the dexterity of legged robots. The designed WBR has extra knee joints to maintain body balance when encountering uneven terrain. Because of the robot’s highly nonlinear, dynamic, unstabl...

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Main Authors: Chun-Fei Hsu, Bo-Rui Chen, Zi-Ling Lin
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/11/12/357
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author Chun-Fei Hsu
Bo-Rui Chen
Zi-Ling Lin
author_facet Chun-Fei Hsu
Bo-Rui Chen
Zi-Ling Lin
author_sort Chun-Fei Hsu
collection DOAJ
description This study designs and implements a wheeled bipedal robot (WBR) that combines the mobility of wheeled robots and the dexterity of legged robots. The designed WBR has extra knee joints to maintain body balance when encountering uneven terrain. Because of the robot’s highly nonlinear, dynamic, unstable, and under-actuated nature, an intelligent motion and balance controller (IMBC) based on a fuzzy logic approach is proposed to maintain the balance of the WBR while it is standing and moving on the ground. It should be emphasized that the proposed IMBC system does not require prior knowledge of system dynamics and the controller parameters are tuned using the qualitative aspects of human knowledge. Furthermore, a 32-bit microcontroller that has memory, programmable I/O peripherals, and a processor core is used to implement the IMBC method. Finally, moving and rotating, height-changing, posture-keeping, and “one leg on slope” movement scenarios are tested to demonstrate the feasibility of the proposed IMBC system. The experimental results show that, by using the proposed IMBC system, the WBR can not only balance and move well both on flat ground and in complex terrain but also extend each leg independently to maintain body balance.
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spelling doaj.art-aa0c65d253e84559860b3f78d04477012023-11-24T12:35:08ZengMDPI AGActuators2076-08252022-12-01111235710.3390/act11120357Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic ApproachChun-Fei Hsu0Bo-Rui Chen1Zi-Ling Lin2Department of Electrical Engineering, Tamkang University, No. 151, Yingzhuan Rd., Tamsui Dist., New Taipei City 25137, TaiwanDepartment of Electrical and Computer Engineering, Institute of Electrical and Control Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electrical Engineering, Tamkang University, No. 151, Yingzhuan Rd., Tamsui Dist., New Taipei City 25137, TaiwanThis study designs and implements a wheeled bipedal robot (WBR) that combines the mobility of wheeled robots and the dexterity of legged robots. The designed WBR has extra knee joints to maintain body balance when encountering uneven terrain. Because of the robot’s highly nonlinear, dynamic, unstable, and under-actuated nature, an intelligent motion and balance controller (IMBC) based on a fuzzy logic approach is proposed to maintain the balance of the WBR while it is standing and moving on the ground. It should be emphasized that the proposed IMBC system does not require prior knowledge of system dynamics and the controller parameters are tuned using the qualitative aspects of human knowledge. Furthermore, a 32-bit microcontroller that has memory, programmable I/O peripherals, and a processor core is used to implement the IMBC method. Finally, moving and rotating, height-changing, posture-keeping, and “one leg on slope” movement scenarios are tested to demonstrate the feasibility of the proposed IMBC system. The experimental results show that, by using the proposed IMBC system, the WBR can not only balance and move well both on flat ground and in complex terrain but also extend each leg independently to maintain body balance.https://www.mdpi.com/2076-0825/11/12/357fuzzy controlbalance controlmovement controlwheeled bipedal robot
spellingShingle Chun-Fei Hsu
Bo-Rui Chen
Zi-Ling Lin
Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach
Actuators
fuzzy control
balance control
movement control
wheeled bipedal robot
title Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach
title_full Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach
title_fullStr Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach
title_full_unstemmed Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach
title_short Implementation and Control of a Wheeled Bipedal Robot Using a Fuzzy Logic Approach
title_sort implementation and control of a wheeled bipedal robot using a fuzzy logic approach
topic fuzzy control
balance control
movement control
wheeled bipedal robot
url https://www.mdpi.com/2076-0825/11/12/357
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AT boruichen implementationandcontrolofawheeledbipedalrobotusingafuzzylogicapproach
AT zilinglin implementationandcontrolofawheeledbipedalrobotusingafuzzylogicapproach