Intelligent adaptive model-based control of robotic dynamic systems with a hybrid fuzzy-neural approach

  • Authors:
  • Oscar Castillo;Patricia Melin

  • Affiliations:
  • Computer Science Department, Tijuana Institute of Technology, P.O. Box 4207, Chula Vista, CA 91909, USA;Computer Science Department, Tijuana Institute of Technology, P.O. Box 4207, Chula Vista, CA 91909, USA

  • Venue:
  • Applied Soft Computing
  • Year:
  • 2003

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Abstract

We describe in this paper a new method for adaptive model-based control of robotic dynamic systems using a new hybrid fuzzy-neural approach. Intelligent control of robotic systems is a difficult problem because the dynamics of these systems is highly nonlinear. We describe an intelligent system for controlling robot manipulators to illustrate our fuzzy-neural hybrid approach for adaptive control. We use a new fuzzy inference system for reasoning with multiple differential equations for model selection based on the relevant parameters for the problem. In this case, the fractal dimension of a time series of measured values of the variables is used as a selection parameter. We use neural networks for identification and control of robotic dynamic systems. We also compare our hybrid fuzzy-neural approach with conventional fuzzy control to show the advantages of the proposed method for control.