Abstract: Based on the non-linearization of pneumatic system, the neural-fuzzy control is embedded in the expert control, a comprehensive real-time intelligent hybrid control method is produced. It has not only the controller ability of logical reasoning and advanced intelligent behavior of the expert control, but also the instinct reasoning ability of the neural-fuzzy control, the coupled control method realizes the parallel control and knowledge sharing. The designed intelligent hybrid controller is introduced into the system model, and simulation on step signal is developed for the designed controllers and the others, the simulation result shows that the control system has a good rapidity and flexibility and the system moves smoothly, and it also shows good static and dynamic characteristics. The experiments prove that the hybrid controller designed for the non-linear characteristic is correct and effective.

Key words: Expert system, Intelligent hybrid control, Nonlinearity, Pneumatic proportional system