A laundry washing machine and method control a time or duration of a drain operation at least in part based upon a type of a load being washed in the laundry washing machine. By doing so, the amount of time in which a drain operation is performed may be customized for different types of loads, and in many instances, may reduce the amount of noise and/or energy consumption associated with draining a wash tub during a wash cycle.

A control method of a laundry treatment apparatus is disclosed. The control method includes rotating the drum at a predetermined first number of rotations to measure the weight of the laundry stored in the drum (a laundry weight measurement step), rotating the drum at a predetermined second number of rotations to determine the magnitude of the dynamic unbalance of the drum (an unbalance measurement step), accelerating the drum to a target number of rotations, which is greater than the first number of rotations and the second number of rotations, when the magnitude of the dynamic unbalance measured at the unbalance measurement step is less than a predetermined reference value (an acceleration step), interrupting the rotation of the drum when the variation per unit time of current supplied to the stator during execution of the acceleration step is equal to or greater than a predetermined reference variation (a first interruption step), rotating the drum at the first number of rotations to determine the weight of the laundry stored in the drum (a laundry weight remeasurement step), and interrupting the rotation of the drum when the deviation between the laundry weight measured at the laundry weight remeasurement step and the laundry weight measured at the laundry weight measurement step is equal to or greater than a predetermined reference deviation (a second interruption step).

A control method of a laundry treating apparatus includes rotating a drum at a reference rotational speed that is lower or higher than a resonance rotational speed of the laundry treating apparatus; measuring the maximum displacements of tub front and rear surfaces and a phase difference between the maximum displacements during the rotation of the drum at the reference rotational speed; determining a front unbalance (UB) mass located in a drum front area, a rear UB mass located in a drum rear area, and an angle between the UB masses based on the maximum displacements and the phase difference; and accelerating a drum rotational speed to a target rotational speed that is higher than the reference rotational speed and the resonance rotational speed, when the front and rear UB masses are in a preset allowable mass range and an angle between the UB masses is in an allowable angle range.

A control method of a laundry treating apparatus includes rotating a drum at a reference rotational speed that is lower or higher than a resonance rotational speed of the laundry treating apparatus; measuring the maximum displacements of tub front and rear surfaces and a phase difference between the maximum displacements during the rotation of the drum at the reference rotational speed; determining a front unbalance (UB) mass located in a drum front area, a rear UB mass located in a drum rear area, and an angle between the UB masses based on the maximum displacements and the phase difference; and accelerating a drum rotational speed to a target rotational speed that is higher than the reference rotational speed and the resonance rotational speed, when the front and rear UB masses are in a preset allowable mass range and an angle between the UB masses is in an allowable angle range.

A laundry treating apparatus includes a cabinet, a tub, a drum rotatably disposed inside the tub, an elastic member to connect, to the cabinet, a portion of the tub body above a horizontal line passing through a rotation center of the drum; first and second dampers to connect, to the cabinet, a portion of the tub body located below the horizontal line; and a third damper to connect, to the cabinet, a portion of the tub body located below the horizontal line. A first location is defined as one of left and right portions in the tub body relative to a vertical line passing through the rotation center of the drum, while a second location is defined as the other portion. The first damper and second damper are disposed at the first location. The third damper is disposed at the second location.

A laundry treating apparatus includes a cabinet, a tub, a drum rotatably disposed inside the tub, an elastic member to connect, to the cabinet, a portion of the tub body above a horizontal line passing through a rotation center of the drum; first and second dampers to connect, to the cabinet, a portion of the tub body located below the horizontal line; and a third damper to connect, to the cabinet, a portion of the tub body located below the horizontal line. A first location is defined as one of left and right portions in the tub body relative to a vertical line passing through the rotation center of the drum, while a second location is defined as the other portion. The first damper and second damper are disposed at the first location. The third damper is disposed at the second location.

A laundry treating apparatus includes a cabinet, a tub, a drum, a water supply, a drain, a rotator rotatably disposed on a bottom surface of the drum, and a controller that controls rotation of the rotator. The rotator includes a bottom portion positioned on the bottom surface, a pillar protruding from the bottom portion toward an open surface, and a blade including a plurality of blades disposed to be spaced apart from each other along a circumferential direction of the pillar. The blade extends from the bottom portion toward the open surface in an inclined direction with respect to a longitudinal direction of the pillar. The rotator performs a first rotation for generating an ascending water flow and a second rotation for generating a descending water flow. The controller controls the rotator to alternately repeat the first rotation and the second rotation.

A laundry treating apparatus includes a cabinet, a tub, a drum, a water supply, a drain, a rotator rotatably disposed on a bottom surface of the drum, and a controller that controls rotation of the rotator. The rotator includes a bottom portion positioned on the bottom surface, a pillar protruding from the bottom portion toward an open surface, and a blade including a plurality of blades disposed to be spaced apart from each other along a circumferential direction of the pillar. The blade extends from the bottom portion toward the open surface in an inclined direction with respect to a longitudinal direction of the pillar. The rotator performs a first rotation for generating an ascending water flow and a second rotation for generating a descending water flow. The controller controls the rotator to alternately repeat the first rotation and the second rotation.

Disclosed is a method for controlling a spin-drying cycle of a laundry treatment machine. The method includes performing a plurality of spin-drying operations by rotating a drum above an adjusted rotational speed range configured to adjust disposition of balls within a ball balancer so as to correspond to a changed amount of eccentricity, and adjusting the disposition of the balls within the ball balancer by rotating the drum within the adjusted rotational speed range, between the respective spin-drying operations.

The present application relates to a laundry treating apparatus. More specifically, the present application relates to a laundry treating apparatus having a camera and a control method thereof. One embodiment of the present application provides a method including: causing a drum to move laundry inside the drum; generating time-series images of movement of the laundry by capturing an inside of the drum while the laundry moves over time; determining a movement state of the laundry based on the generated time-series images while the drum rotates at a revolutions per minute (RPM); controlling the RPM of the drum based on the movement state of the laundry to increase a laundry spread value; and after the laundry spread value has increased, increasing the RPM of the drum to perform a spinning process.