Fuzzy control system

Related papers: 20

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A fuzzy control system is a rule-based control framework that uses fuzzy logic to handle imprecise, uncertain, or linguistically expressed information, mapping inputs to control outputs through sets of "if-then" rules rather than exact mathematical models. Rooted in Lotfi Zadeh's fuzzy set theory, these systems represent variables as degrees of membership across overlapping categories — such as "slow," "medium," or "fast" — allowing controllers to reason with the kind of approximate knowledge that human experts naturally use. In robotics and AI, fuzzy controllers are applied to mobile robot navigation, manipulator control, exoskeleton systems, and autonomous vehicles, where system dynamics are nonlinear, uncertain, or difficult to model precisely. Advanced variants, including Type-2 fuzzy systems, handle higher levels of uncertainty, while hybrid approaches combine fuzzy logic with neural networks, adaptive algorithms, and evolutionary optimization to improve performance. Fuzzy control matters because it provides a practical, interpretable pathway to robust control of complex systems, bridging the gap between human expert knowledge and automated decision-making in real-world environments.

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