Fuzzy control system
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United States of America Patent
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-
May 2, 1995
Grant Date -
N/A
app pub date -
Nov 26, 1991
filing date -
Nov 28, 1990
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a fuzzy control system which calculates a membership function concerning a control value of a to-be-controlled object through a fuzzy inference operation in accordance with an input value from the to-be-controlled object and a control rule, and determines the control value from the membership function to control the to-be-controlled object. This fuzzy control system has a plurality of internal states respectively expressed by a plurality of membership functions in addition to the input value and the control value, determines the state of the to-be-controlled object using a rule for evaluating the input value, alters the internal state by fuzzy inference, stores a decision result as a new internal state, and determines the control value of the to-be-controlled object through fuzzy inference from the new internal state and the input value.
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