US 12,104,817 B2
Control method for multi-split air conditioning system capable of simultaneous cooling and heating
Baitian Zhuo, Qingdao (CN); Bin Shi, Qingdao (CN); Shaojiang Cheng, Qingdao (CN); Ruigang Zhang, Qingdao (CN); and Jun Wang, Qingdao (CN)
Assigned to Qingdao Haier Air-conditioning Electronic Co., Ltd, Qingdao (CN); and Haier Smart Home Co., Ltd., Qingdao (CN)
Appl. No. 17/637,260
Filed by Qingdao Haier Air-conditioning Electronic Co., Ltd, Qingdao (CN); and Haier Smart Home Co., Ltd., Qingdao (CN)
PCT Filed Aug. 17, 2020, PCT No. PCT/CN2020/109557
§ 371(c)(1), (2) Date Feb. 22, 2022,
PCT Pub. No. WO2021/036842, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 201910815570.9 (CN), filed on Aug. 30, 2019.
Prior Publication US 2022/0307720 A1, Sep. 29, 2022
Int. Cl. F24F 11/65 (2018.01); F24F 11/84 (2018.01); F24F 110/10 (2018.01)
CPC F24F 11/65 (2018.01) [F24F 11/84 (2018.01); F24F 2110/10 (2018.01)] 9 Claims
OG exemplary drawing
 
1. A control method for a multi-connection air conditioning system capable of simultaneous cooling and heating, the multi-connection air conditioning system capable of simultaneous cooling and heating comprising an outdoor unit, a plurality of valve boxes and a plurality of indoor units, the outdoor unit and the plurality of indoor units being connected through the plurality of valve boxes, and each of the valve boxes having at least one of the indoor units connected therewith, the control method comprising:
calculating a cooling temperature effect deviation or a heating temperature effect deviation of each of the indoor units based on an indoor environment temperature of an environment in which the indoor unit is located and a set temperature;
calculating a total cooling effect deviation and a total heating effect deviation of the multi-connection air conditioning system based on horsepowers of all the indoor units and the corresponding cooling temperature effect deviations or heating temperature effect deviations; and
selectively adjusting opening degrees of the valve boxes based on the total cooling effect deviation and the total heating effect deviation,
wherein the control method further comprises:
calculating a valve box effect deviation of each of the valve boxes based on the horsepowers of all the indoor units connected to the same valve box and the corresponding cooling temperature effect deviations or heating temperature effect deviations; and
wherein the step of “selectively adjusting the opening degrees of the valve boxes based on the total cooling effect deviation and the total heating effect deviation” further comprises:
selectively adjusting the opening degrees of the valve boxes based on the total cooling effect deviation, the total heating effect deviation, and the valve box effect deviations; and
wherein the selectively adjusting the opening degrees of the valve boxes based on the total cooling effect deviation, the total heating effect deviation, and the valve box effect deviations further comprises:
determining a system correction value of each of the valve boxes based on the total cooling effect deviation and the total heating effect deviation, respectively;
determining a local correction value of each of the valve boxes based on the valve box effect deviation, respectively;
calculating a final correction value of each of the valve boxes based on the system correction value and the local correction value; and
selectively adjusting the opening degree of the valve box based on the final correction value.