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. 01, 2018

Filed:

Dec. 09, 2015
Applicant:

Industrial Technology Research Institute, Hsinchu, TW;

Inventors:

Jyun-Sian Li, Kaohsiung, TW;

Yi-Cheng Cheng, Hsinchu, TW;

Chen-Kai Hsu, Miaoli County, TW;

Chun-Yen Chen, Taoyuan, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 13/02 (2006.01); G05B 11/36 (2006.01); G05B 11/38 (2006.01); G05B 11/42 (2006.01);
U.S. Cl.
CPC ...
G05B 13/024 (2013.01); G05B 11/36 (2013.01); G05B 11/38 (2013.01); G05B 11/42 (2013.01);
Abstract

A parameter tuning method of an unknown proportional-integral-derivative (PID) controller is provided. The unknown PID controller is replaced with the control algorithm of the generic controller to perform the optimal parameter tuning to obtain the target parameter of the generic controller. The unknown PID controller is set with a first parameter group so that the corresponding input signal, the control signal and the output signal are measured for performing the parameter identification procedure of the generic controller to obtain a second parameter group of the generic controller. When the second parameter group is not within a specification range of the target parameter, the first parameter is re-calculated and modified by a direct search method in accordance with the difference between the second parameter group and the target parameter for setting the unknown PID controller again, and then the input signal, the control signal and the output signal are measured again.


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