Design of a fuzzy controller using input and output mapping factors

Design of new adaptive fuzzy logic controller for nonlinear plants with unknown or time-varying dead zones

“…The control output can be determined from the center average method as follows: (5) where is the output control gain, is the grade of the th output MF, is the output label for the value contributed by the th MF, and is the number of contributions from the rules.…”

Design of Fuzzy PD+I Controller Based on PID Controller

“…The control scheme of the fuzzy controller can be categorized such as fuzzy PD(F-PD), fuzzy PI(F-PI), fuzzy PID(F-PID) controller (Abdelnour et al, 1991). In F-PD scheme, it is hard to remove steady state error comparatively, F-PI scheme could give a poor transient response for higher order system due to the self integral operation and the F-PID scheme is complicated to construct a fuzzy inference.…”

Auto-Tuning of Fuzzy Pid Controllers

“…Initially, the PID-FLC structures were designed considering three terms as inputs (Driankov, et al, 1993;Abdelnour, et al, 1991). Obviously, the rule base of these fuzzy controllers is three-dimensional (3-D), which makes it difficult to obtain since 3-D information is usually beyond the sensing capability of a human expert.…”