US 11,898,290 B2
Laundry treating appliance and method for controlling the same
Myunghun Im, Seoul (KR); Hwanjin Jung, Seoul (KR); Jaehyun Kim, Seoul (KR); and Kyungchul Woo, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/612,054
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed May 15, 2020, PCT No. PCT/KR2020/006450
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2020/235888, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 10-2019-0058355 (KR), filed on May 17, 2019.
Prior Publication US 2022/0235507 A1, Jul. 28, 2022
Int. Cl. D06F 34/18 (2020.01); D06F 33/32 (2020.01); D06F 37/30 (2020.01)
CPC D06F 34/18 (2020.02) [D06F 33/32 (2020.02); D06F 37/304 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laundry treating appliance comprising:
a drum configured to receive laundry;
a motor rotating the drum;
a detector detecting a current of the motor; and
a controller being configured to accelerate rotation of the drum, obtain current change function based on current values detected by the detector at a predetermined time interval during the accelerated rotation of the drum, and determine a first motion speed based on a value of a first derivative of the current change function, wherein the current change function is a continuous function representing the current of the motor according to a rotational speed of the motor,
wherein the controller is configured to rotate the motor in the first motion speed after determining the first motion speed.