Title:
PLANT CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/033858
Kind Code:
A1
Abstract:
A plant control device according to the present invention is provided with a feedback controller and a reference governor. The feedback controller is configured to determine control input of a plant by feedback control so as to cause output values of a control quantity for the plant to approach a target value. The reference governor is configured so as to calculate a future predicted value for a specific state quantity of the plant using a closed loop system model that includes the plant and the feedback controller, and on the basis of the predicted value for the specific state quantity and a constraint imposed upon the specific state quantity, correct the target value imparted to the feedback controller. More specifically, the reference governor is configured so as to search for optimal values for a criterion function represented using an objective function that treats a candidate as a corrected target value, and a penalty function that imposes a penalty on the objective function if the predicted value for the specific state quantity conflicts with the constraint, and to determine a corrected target value candidate, which optimizes the criterion function, as a corrected target value.
Inventors:
NAKADA HAYATO (JP)
Application Number:
PCT/JP2012/071863
Publication Date:
March 06, 2014
Filing Date:
August 29, 2012
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
NAKADA HAYATO (JP)
NAKADA HAYATO (JP)
International Classes:
G05B13/02
Foreign References:
| JP2010253501A | 2010-11-11 | |||
| JP2010084523A | 2010-04-15 | |||
| JP2004270657A | 2004-09-30 |
Other References:
TAKESHI HATANAKA: "Design of Reference Governor for Constrained Systems Subject to Disturbance", TRANSACTIONS OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 40, no. 8, XP055180926
TOSHIHARU SUGIE: "Speciai Issue on New Trends in Control of Constrained Systems", SYSTEMS, CONTROL AND INFORMATION, vol. 47, no. 11, XP055181617
KENJI HIRATA: "An Off-Line Reference Management Technique for Constraint Fulfillment", SYSTEMS, CONTROL AND INFORMATION, vol. 14, no. 11, 2001, XP055180928
See also references of EP 2891931A4
TOSHIHARU SUGIE: "Speciai Issue on New Trends in Control of Constrained Systems", SYSTEMS, CONTROL AND INFORMATION, vol. 47, no. 11, XP055181617
KENJI HIRATA: "An Off-Line Reference Management Technique for Constraint Fulfillment", SYSTEMS, CONTROL AND INFORMATION, vol. 14, no. 11, 2001, XP055180928
See also references of EP 2891931A4
Attorney, Agent or Firm:
TAKAHASHI, Hideki et al. (JP)
Hideki Takahashi (JP)
Hideki Takahashi (JP)
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