Title:
LEARNING CONTROL DEVICE FOR ROLLING PROCESS
Document Type and Number:
WIPO Patent Application WO/2022/239157
Kind Code:
A1
Abstract:
The learning control device according to an embodiment of the present invention calculates a predicted value on the basis of an actual value measured in a rolling process, calculates an instantaneous value of a learning rate on the basis of the difference between the calculated predicted value and the actual value of the rolling process, calculates an updated value of the learning rate on the basis of the instantaneous value of the learning rate and a previous value of a cell having corresponding rolling conditions in a learning rate table, updates the learning rate of the cell having the corresponding rolling conditions in the learning rate table, identifies an occurrence time of a sudden change in the learning rate on the basis of the instantaneous value of the learning rate stored in a rolling information database, detects a deviation from a standard of the instantaneous value of the learning rate before and after the occurrence time of the sudden change in the learning rate as a learning rate sudden change component, and re-updates the learning rate in the learning table by a correction based on the instantaneous value of the learning rate stored in the rolling information database at and after the identified occurrence time of the sudden change of the learning rate and on the learning rate sudden change component.
Inventors:
SEKIMOTO MASAYASU (JP)
Application Number:
PCT/JP2021/018091
Publication Date:
November 17, 2022
Filing Date:
May 12, 2021
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
G05B23/02; B21B37/00; G05B13/02
Domestic Patent References:
| WO2015122010A1 | 2015-08-20 |
Foreign References:
| JP2009116759A | 2009-05-28 | |||
| JPH1031505A | 1998-02-03 | |||
| JPH07200005A | 1995-08-04 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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