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:
May. 08, 2007

Filed:

Feb. 02, 2006
Applicants:

Yuji Yasui, Wako, JP;

Yoshihisa Iwaki, Wako, JP;

Jun Takahashi, Wako, JP;

Inventors:

Yuji Yasui, Wako, JP;

Yoshihisa Iwaki, Wako, JP;

Jun Takahashi, Wako, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05B 13/02 (2006.01); G05B 11/01 (2006.01); G06F 17/00 (2006.01); F02D 9/08 (2006.01); F02D 31/00 (2006.01); F02D 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A control system for a plant is provided. This control system can control the plant more stably, when the model parameters of the controlled object model which are obtained by modeling the plant, which is a controlled object, are identified and the sliding mode control is performed using the identified model parameters. The model parameter identifier () calculates a model parameter vector (θ) by adding an updating vector (dθ) to a reference vector (θbase) of the model parameter. The updating vector (dθ) is corrected by multiplying a past value of at least one element of the updating vector by a predetermined value which is greater than '0' and less than '1'. The model parameter vector (θ) is calculated by adding the corrected updating vector (dθ) to the reference vector (θbase).


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