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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.
Quadruped robot driven by high power density hydraulic device works in unstructured environment. Due to variable load and various external disturbances, the hydraulic servo system has features such as nonlinear, time-varying parameters .Traditional control method has some limitation. 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 response speed and precision of the hydraulic servo system, and has some theory significance and practical value.