Patent ID: 11905645
Assignee: LG ELECTRONICS INC.
Field: Other consumer goods (Other fields)
Classification: CPC D | IPC D

Claim 0:
1. A method for controlling a laundry treating apparatus including a tub, a drum that is rotatably disposed inside the tub and has an open surface configured to receive clothes therethrough and a bottom surface located at an opposite side of the open surface, a rotator rotatably disposed inside the drum, a motor configured to drive the drum and the rotator, and a controller configured to control operation of the motor, the rotator including a bottom portion disposed at the bottom surface, a pillar that protrudes from the bottom portion toward the open surface, and a plurality of blades that are spaced apart from one another along a circumferential direction of the pillar and that extend toward the open surface along a direction inclined with respect to a longitudinal direction of the pillar, the method comprising:
sensing an amount of the clothes in the drum;
supplying water into the tub;
sensing a washing load of the clothes that include a moisture content from the water supplied into the tub;
supplying power to the motor to rotate the rotator at a predetermined target revolution per minute (rpm);
determining an actual rpm of the rotator;
determining a rpm gap that is a difference between the target rpm of the rotator and the actual rpm; and
determining a cloth material of the clothes based on the rpm gap and whether the motor is in a motor-constrained state in which rotation of the motor is restricted.