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Edith Cowan University

Excavator

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Fuzzy Controlled Hydraulic Excavator With Model Parameter Uncertainty, Ganesh Kothapalli, Mohammed Hassan Jan 2011

Fuzzy Controlled Hydraulic Excavator With Model Parameter Uncertainty, Ganesh Kothapalli, Mohammed Hassan

ECU Publications 2011

The hydraulic actuated excavator, being a non-linear mobile machine, encounters many uncertainties. There are uncertainties in the hydraulic system in addition to the uncertain nature of the load. The simulation results obtained in this study show that there is a need for intelligent control of such machines and in particular interval type-2 fuzzy controller is most suitable for minimizing the position error of a typical excavator’s bucket under load variations. We consider the model parameter uncertainties such as hydraulic fluid leakage and friction. These are uncertainties which also depend up on the temperature and alter bulk modulus and viscosity ...