Control system for plant
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYuji Yasui, Yoshihisa Iwaki, Eiji Hashimoto
Life of this patent
Estimating the term…
Abstract
A control system for a plant is disclosed. According to this system, a model parameter vector of a controlled object model which is obtained by modeling the plant, is identified. A controller controls the plant using the identified model parameter vector. An identifying error of the model parameter vector is calculated, and the calculated identifying error is limited in a predetermined range. An updating vector is calculated according to the limited identifying error. The model parameter vector is calculated by adding the updating vector to a reference vector of the model parameter vector.
Claims15
A control system for a plant, comprising:
- identifying means for identifying a model parameter vector of a controlled object model obtained by modeling said plant;
- and
- a controller for controlling said plant using the model parameter vector identified by said identifying means;
- said identifying means including:
- identifying error calculating means for calculating an identifying error of the model parameter vector;
- limiting means for liming the identifying error in a predetermined range;
- and
- updating vector calculating means for calculating an updating vector according to the identifying error limited by said limiting means,
- wherein said identifying means calculates the model parameter vector by adding the updating vector to a reference vector of the model parameter vector.
A control method for a plant, comprising the steps of:
- a) identifying a model parameter vector of a controlled object model obtained by modeling said plant;
- and
- b) controlling said plant using the identified model parameter vector;
- said step a) of identifying the model parameter vector, comprising the steps of:
- i) calculating an identifying error of the model parameter vector;
- ii) limiting the calculated identifying error in a predetermined range;
- iii) calculating an updating vector according to the limited identifying error;
- and
- iv) calculating the model parameter vector by adding the calculated updating vector to a reference vector of the model parameter vector.
A computer program for causing a computer to carry out a control method for a plant, said control method comprising the steps of:
- a) identifying a model parameter vector of a controlled object model obtained by modeling said plant;
- and
- b) controlling said plant using the identified model parameter vector;
- said step a) of identifying the model parameter vector, comprising the steps of:
- i) calculating an identifying error of the model parameter vector;
- ii) limiting the calculated identifying error in a predetermined range;
- iii) calculating an updating vector according to the limited identifying error;
- and
- iv) calculating the model parameter vector by adding the calculated updating vector to a reference vector of the model parameter vector.
Dependencies are inferred from the claim text.