Abstract
As conventional PID controller has the problem with the contradictions between rapidity and accuracy, this paper presents an algorithm about flow/pressure simulation subsystem of an aircraft using Fuzzy-PID controller. The paper at first discusses the technical difficulties of the system, then constructs the mathematical modeling of the proportion throttle valve which plays an important role in the subsystem, and designs a Fuzzy-PID controller, at last compares the proposed method with conventional PID algorithm through simulations and experiments . Its results show that the fuzzy PID control algorithm can achieve good static and dynamic performance, and its rapidity and control accuracy are better than conventional algorithms having met the practical requirements of simulation test of the indicators.
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