Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2023086538
Kind Code:
A
Abstract:
To disclose one example of air conditioner that can appropriately control an indoor temperature.SOLUTION: When an excessively increasing change amount and an excessively lowering change amount occur within an evaluation time, an air conditioner 1 determines that hunting has occurred and executes feedback control using a suppressing derivative gain smaller than a normal derivative gain. Thus since hunting can be suppressed, an indoor temperature can be controlled appropriately. The evaluation time is a predetermined time longer than a sampling time. A change time is a time shorter than the evaluation time and equal to or longer than the sampling time. The excessively increasing change amount is change amount that is a positive value and of which absolute value is a predetermined value or greater. The excessively lowering change amount is change amount that is a negative value and of which absolute value is a predetermined value or greater.SELECTED DRAWING: Figure 1
Inventors:
FUTAWATARI NAOKI
UDAGAWA YOSUKE
HIRAMATSU MIKI
SHIRAKAWA TAKUYA
UDAGAWA YOSUKE
HIRAMATSU MIKI
SHIRAKAWA TAKUYA
Application Number:
JP2021201122A
Publication Date:
June 22, 2023
Filing Date:
December 10, 2021
Export Citation:
Assignee:
NTT FACILITIES INC
International Classes:
F24F11/88; F24F11/80; G05B11/36
Attorney, Agent or Firm:
Nagoya International Patent Attorney Corporation