Fuzzy Logic Controllers for Aircraft Flight Control

  • Jia Luo
  • Edward Lan
Part of the International Series in Intelligent Technologies book series (ISIT, volume 3)


Fuzzy logic proportional-integral-differential (PID) controllers are developed to perform both stability augmentation and automatic flight control functions. It operates for controlling both longitudinal and lateral-directional motions for an example aircraft, the X-29. The controllers for pitch, roll and yaw control are generated by analyzing a mathematical model describing aircraft static and dynamic characteristics. Each set of fuzzy rules consists of coarse and fine rules. The coarse rules are designed to supply fast response with large control input; while the fine rules are designed to make fine adjustments to improve dynamic stability. Nonlinear numerical simulations are performed to verify the controller performance at the design and off-design conditions for angle of attack hold, bank angle hold and sideslip angle hold. The results indicate that fuzzy PID controllers can provide fast, well damped response to pilot commands and thus improve flight performance, and increase agility, and also are robust.


Fuzzy Controller Fuzzy Logic Controller Flight Control Negative Medium Negative Small 


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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Jia Luo
    • 1
  • Edward Lan
    • 1
  1. 1.Department of Aerospace EngineeringUniversity of KansasLawrenceUSA

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