A method constructing vacuum servo control system with a combined vacuum generator is proposed and the single neural adaptive PID control strategy is also proposed due to the inherent defects of the vacuum servo system in this paper. The influence of the system parameters to the characteristics of the vacuum servo system is analyzed and discussed. The simulation and the experiment show that the kind of vacuum servo system has the characteristics of faster response, higher control accuracy and stronger robustness. The control strategy presented can improve the static and dynamic behavior of the system effectively. PREFACE The vacuum technology has been widely used in various kinds of industrial fields, e.g. food industry, automotive manufacturing industry, metallurgy industry, et al. The applications are just limited in open-loop control . But the reports to vacuum servo control technology are few. It is because the vacuum servo system has the inherent defects of larger time const, greater nonlinear and change with time. Considering the vacuum servo control technology will be widely used in the field of aviation and space flight, and it is very important especially in the closed to semi-practicality simulation system of the low altitude aircraft. According to the characteristics of the vacuum servo system, the single neural adaptive PID control strategy is proposed based on the reasonable constructing of system in this paper. The servo control of the vacuum signal with higher accuracy and faster response has been realized, and the achievement solves the simulation problem of the dynamic pressure and the static pressure in the semi-practicality simulation system of the low altitude aircraft
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