The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 1989
Filed:
Apr. 10, 1987
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
364157 ; 364148 ; 364162 ;
Abstract
An auto-tuning controller includes a fuzzy resonator for the adjustment of control parameters used in the development of a control variable for controlling the operation of a system to be controlled. A characteristic variable extractor is provided which is responsive to an error signal representative of a difference between a reference value and a controlled variable value output by the system to produce a characteristic variable indicative of the operational state of the system. Based upon this characteristic variable, a fuzzy resonator adjusts the control parameters in accordance with predetermined reasoning rules stored in a reasoning rule memory.