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:
Oct. 05, 1993
Filed:
Apr. 30, 1991
Nobutomo Matsunaga, Hirakata, JP;
Omron Corporation, Kyoto, JP;
Abstract
A fuzzy controller is disclosed which is furnished with an error generator to generate a first error between a present value and a desired value. A corrector unit calculates the amount of correction needed based on the error and adds the appropriate amount of correction to the desired value. An error generator generates a second error between the present value and the corrected desired value. A fuzzy inference unit performs fuzzy inferences, based on fuzzy rules and membership functions, on inputs which include the second error. The fuzzy controller thus performs fuzzy inferences based on an error existing between the present value and the corrected desired value after the corrected desired value is obtained from the error existing between a present value and a desired value. The fuzzy controller is able to perform feedback control in both transient and steady states of a control system.