Open loop adaptive fuzzy logic controller for elevator dispatchi

Elevator – industrial lift truck – or stationary lift for vehicle – With call registration means – Shared by plural load supports

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187380, 395910, B66B 136

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active

058410848

ABSTRACT:
A group controller for controlling elevator cars in a building having a plurality of floors includes a traffic and traffic rate estimator for providing fuzzy estimates of traffic and traffic rate; an open loop fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate, the open loop fuzzy logic controller having membership functions for fuzzy sets of the control parameter; an adaptive controller for modifying the membership functions of the fuzzy sets of the control parameter in response to an elevator control system output variable; and an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions in response to the control parameter.

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