US 12,169,089 B2
Refrigerator and method of controlling the same
Sungwook Kim, Seoul (KR); Sangbok Choi, Seoul (KR); and Namsoo Cho, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/773,980
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Oct. 12, 2020, PCT No. PCT/KR2020/013883
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/091103, PCT Pub. Date May 14, 2021.
Claims priority of application No. 10-2019-0139674 (KR), filed on Nov. 4, 2019.
Prior Publication US 2022/0341649 A1, Oct. 27, 2022
Int. Cl. F25D 17/06 (2006.01); F25D 17/04 (2006.01); F25D 29/00 (2006.01)
CPC F25D 17/065 (2013.01) [F25D 17/045 (2013.01); F25D 29/003 (2013.01); F25D 2400/34 (2013.01); F25D 2600/02 (2013.01); F25D 2700/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for controlling a refrigerator based on a first reference temperature and a second reference temperature, the method comprising:
turning off a cold air transmission component when a temperature of a storage compartment becomes equal to or less than the second reference temperature while a cold air generator is operated;
turning on the cold air transmission component, when the temperature of the storage compartment is determined to be equal to or greater than the first reference temperature; and
determining, by a controller, an operating ratio of the cold air transmission component based on an ON time and an OFF time of the cold air transmission component, determining an operating property of the cold air transmission component based on the determined operating ratio of the cold air transmission component, and operating the cold air transmission component at the determined operating property of the cold air transmission component, upon determining that the temperature of the storage compartment is equal to or less than the second reference temperature, and
wherein the controller determines the operating property of the cold air transmission component, based on at least one of:
a difference between a previous operating ratio of the cold air transmission component and a current operating ratio of the cold air transmission component, or
a difference between a reference operating ratio, which is previously determined, and the current operating ratio of the cold air transmission component.