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.

Date of Patent:
Nov. 22, 1988

Filed:

Jul. 02, 1987
Applicant:
Inventor:

Katsuhiko Kawai, Nagoya, JP;

Assignee:

Nippondenso Co., Ltd., Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123339 ; 36443107 ;
Abstract

A state value related to operating state of a controlled object is detected. An actuator serves to adjust the operating state of the controlled object. A target control quantity of the actuator is determined on the basis of the detected state value. The actuator is controlled in accordance with the determined target control quantity. The detected state value and the determined target control quantity are stored. A new target control quantity of the actuator is calculated on the basis of a vector of predetermined optimal feedback gain and a vector of state variables. The optimal feedback gain depends on model constants in a dynamic model which is an approximation to the operating state of the controlled object. The state variables are composed directly of the stored state value and the stored control quantity.


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