FUZZY C0NTROLLER

PURPOSE:To enable high-speed and high-precision operation by providing a fuzzy scale storage table corresponding to input parameters and an arithmetic part to execute secondary arithmetic using the VERY TRUE of a fuzzy true value while using the input parameters and the fuzzy table. CONSTITUTION:In...

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Bibliographic Details
Main Author KYO AKIRA
Format Patent
LanguageEnglish
Published 23.07.1993
Subjects
ANALOGUE COMPUTERS
CALCULATING
COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
COMPUTING
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
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Summary:PURPOSE:To enable high-speed and high-precision operation by providing a fuzzy scale storage table corresponding to input parameters and an arithmetic part to execute secondary arithmetic using the VERY TRUE of a fuzzy true value while using the input parameters and the fuzzy table. CONSTITUTION:In the control system of a vacuum pressure tank, a vacuum pump 1 evacuates a vacuum pressure tank 2 into low pressure and is connected through a valve 3. A pulse motor 4 drives the valve 3 at a desired opening and maintains the pressure of the vacuum pressure tank 2 at a target value. Deviation en between measured value yn of the pressure of the vacuum pressure tank 2 detected by a pressure sensor 6 and a target value (r) is inputted to a fuzzy controller 5 at every sampling time and the changed variable DELTAen is inputted. Based on these two inputs, the fuzzy controller 5 executes VERY TRUE inference and outputs a changed variable DELTAUn of a manipulated variable.
Bibliography:Application Number: JP19910346661