US 11,952,699 B2
Washing machine and control method thereof
Younghan Cho, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Mar. 10, 2021, as Appl. No. 17/197,705.
Application 17/197,705 is a division of application No. 16/675,763, filed on Nov. 6, 2019, granted, now 11,725,324.
Claims priority of application No. 10-2018-0135105 (KR), filed on Nov. 6, 2018.
Prior Publication US 2021/0189624 A1, Jun. 24, 2021
Int. Cl. D06F 33/48 (2020.01); D06F 21/02 (2006.01); D06F 34/18 (2020.01)
CPC D06F 33/48 (2020.02) [D06F 21/02 (2013.01); D06F 34/18 (2020.02)] 13 Claims
OG exemplary drawing
 
1. A control method for controlling a washing machine, the washing machine including a cabinet that defines an entrance at a front surface of the cabinet configured to insert and withdraw laundry therethrough, a tub disposed inside the cabinet, a drum disposed in the tub and configured to rotate relative to the tub, a motor configured to generate driving force for rotating the drum, a vibration sensor configured to sense vibration of the tub, and a controller configured to control one or more operating modes for washing of laundry, the control method comprising:
performing a tumble motion mode in which the drum is rotated at a preset rotational speed to rinse laundry received in the drum;
determining a stabilization time point at which a variation of a rotational speed of the motor is within a predetermined range;
acquiring, by the controller, vibration data sensed by the vibration sensor after the stabilization time point;
measuring a weight of laundry received in the drum, and determining a cloth amount level that is defined based on a range of the weight of laundry; and
determining a volume of laundry received in the drum based on the cloth amount level and the vibration data.