Fuzzy adaptive PID control on hydraulic servo system of quadruped robot |
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Authors: | LI Jie LUO Qing-sheng WANG Lei CHANG Qing |
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Affiliation: | School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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Abstract: | Quadruped robot driven by high power density hydraulic device works in unstructured environment. With variable load and various external disturbance, the hydraulic servo system has features such as nonlinear, time-varying parameters. Traditional control method has some limitation. In order to help the hydraulic servo system of the quadruped robot to adapt to harsh environments, and to obtain high control quality and control precision, an incremental fuzzy adaptive PID controller based on position feedback is designed to solve the related technical problems. Matlab/Simulink simulation and experimental results show that the incremental fuzzy adaptive PID controller improves the dynamic performance of the system, enhances the respond speed and precision of the hydraulic servo system, and has some theory significance and practical value. |
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Keywords: | quadruped robot hydraulic model fuzzy PID control adaptive control Matlab/Simulink |
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