Patent ID: 6430544
Filing Date: 2002-08-06
Classification: G05B,Y10S

Abstract:
A fuzzy logic controller system comprising:a plurality of fuzzy logic controllers cascadably coupled to one another to form a sequence, each controller having: membership processing means for receiving a separate input variable from a controlled system and performing fuzzy inference operations for outputting an incremental output signal according to associated membership functions and rules, said incremental output signal indicative of a request from each controller to change a controlled output from a current level; and downstream fulfillment means responsive to said membership processing means and to at least one previous controller in said sequence of cascadably coupled controllers for providing a fulfillment signal indicative of a permissible range of freedom for scaling an incremental output signal of another one of said controllers in said cascading sequence, wherein said fulfillment signal operates to constrain the incremental output signal and influence of a subsequent downstream controller.