US 12,326,269 B2
Method of operating an electronic expansion valve in an air conditioner unit
Joshua Duane Longenecker, Louisville, KY (US)
Assigned to Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed by Haier US Appliance Solutions, Inc., Wilmington, DE (US)
Filed on Dec. 1, 2021, as Appl. No. 17/539,332.
Prior Publication US 2023/0167998 A1, Jun. 1, 2023
Int. Cl. F24F 11/84 (2018.01); F24F 11/30 (2018.01); F25B 41/34 (2021.01); F25B 49/02 (2006.01); F24F 110/12 (2018.01)
CPC F24F 11/84 (2018.01) [F24F 11/30 (2018.01); F25B 41/34 (2021.01); F25B 49/02 (2013.01); F24F 2110/12 (2018.01); F25B 2600/2513 (2013.01); F25B 2700/171 (2013.01); F25B 2700/2104 (2013.01); F25B 2700/2106 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An air conditioner unit comprising:
a refrigeration loop comprising an indoor heat exchanger and an outdoor heat exchanger;
a compressor operably coupled to the refrigeration loop and being configured to urge refrigerant through the refrigeration loop;
an electronic expansion valve fluidly coupled to the refrigeration loop; and
a controller operably coupled to the compressor and the electronic expansion valve, the controller being configured to:
receive a command to perform an operating cycle at a target compressor speed;
determine a starting position of the electronic expansion valve using a valve position equation that is a function of the target compressor speed, an indoor temperature, and an outdoor temperature; and
initialize the operating cycle with the electronic expansion valve at the starting position, wherein the valve position equation is as follows:
EEV Position=A·ωComp+B·(TOutdoor−TIndoor)+C
where: EEV Position is the starting position;
A, B, and C are empirically determined constants;
ωComp is the target compressor speed;
TOutdoor is the outdoor temperature; and
TIndoor is the indoor temperature.