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Title:
MULTI-SPLIT AIR CONDITIONING SYSTEM AND FAULT-TOLERANT CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/169519
Kind Code:
A1
Abstract:
Provided in some embodiments of the present disclosure are a multi-split air conditioning system and a fault-tolerant control method therefor. The multi-split air conditioning system comprises an outdoor unit, at least one indoor unit and a controller. The controller is configured to: acquire the current operation parameters of a multi-split air conditioning system; according to the current operation parameters and a fault detection and diagnosis model, determine whether a refrigerant amount abnormality fault occurs in the multi-split air conditioning system; if the refrigerant amount abnormality fault occurs, determine a fault level of the refrigerant amount abnormality fault according to the current operation parameters and the fault detection and diagnosis model; when the refrigerant amount abnormality fault occurs, perform fault-tolerant control according to the current operation parameters and the fault level, so as to determine a target control parameter, wherein the control parameter is data information affecting the value of an operation parameter; and according to the target control parameter, control an outdoor unit and at least one indoor unit to operate.

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Inventors:
XIA XINGXIANG (CN)
SHI JINGFENG (CN)
ZHANG JIASHU (CN)
ZHANG HENG (CN)
MENG JIANJUN (CN)
Application Number:
PCT/CN2023/080554
Publication Date:
September 14, 2023
Filing Date:
March 09, 2023
Export Citation:
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Assignee:
QINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD (CN)
International Classes:
F24F11/49; F24F11/38; F24F11/58; F24F11/62; F24F11/64; F24F11/80; F24F11/89; F25B45/00; F25B49/02; F24F110/10
Foreign References:
CN114413410A2022-04-29
CN114484735A2022-05-13
CN110094843A2019-08-06
CN103727639A2014-04-16
CN106016621A2016-10-12
CN111765676A2020-10-13
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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