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. 14, 1993
Filed:
Sep. 09, 1991
Kazuo Hiroi, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A system for controlling a process system subject to an external disturbance by adjusting a process variable output by the process system to a given target variable. The system includes a target variable filter unit for generating a computed target variable to perform a compensation control operation, a deviation operating unit for computing a deviation between the process variable and the computed target variable, a main control unit for performing at least proportional and integral control operations on the computed deviation between the process variable and the computed target variable to suppress fluctuation of the process variable produced by the external disturbance, and a target variable control unit for changing an input into the deviation operation unit from the computed target variable to the given target variable only when the deviation between the given target variable and the computed target variable computed by the target variable filter unit is less than a predetermined value.