Title:
Control device and control method
Document Type and Number:
Japanese Patent JP6346582
Kind Code:
B2
Abstract:
A controller includes a control computation unit, a control computation output correction unit, and a final-control-element output upper-lower limit processing unit. The control computation unit calculates, for each control cycle, a control computation output value by performing a control computation using a controlled variable and a set point as input values. The control computation output correction unit corrects the control computation output value to a predetermined final-control-element output upper limit in a case where the control computation output value is equal to or larger than a predetermined threshold A. The final-control-element output upper-lower limit processing unit outputs to a control target a value obtained by limiting the corrected control computation output value to a value that is equal to or larger than a predetermined final-control-element output lower limit and that is equal to or smaller than the final-control-element output upper limit, as a final-control-element output value.
Inventors:
Hayato Motohashi
Fumihito Sugawara
Toru Takagi
Fumihito Sugawara
Toru Takagi
Application Number:
JP2015063797A
Publication Date:
June 20, 2018
Filing Date:
March 26, 2015
Export Citation:
Assignee:
Azbil Co., Ltd.
International Classes:
G05B11/42
Domestic Patent References:
| JP2015041315A | ||||
| JP2014059600A |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa