Boundary controller based on fuzzy logic control for certain aircraft

A novel design method of boundary controller for certain aircraft based on fuzzy logic control is proposed in this paper. The method integrates optimization of fuzzy control function and on-line self-tuning of domain in fuzzy control system, which can largely improve qualities and adaptabilities of control system. A least squares algorithm of proportional gain ¿ can optimize fuzzy logic rules. Self-tuning of domain on line can eliminates information loss caused by fuzziation. Integral control strategies can enhance stabilization and accuracy, improve system adaptability and limit deviation. Digital simulation within the full flight envelope demonstrated this new fuzzy controller brought about good control results.