Patent ID: 9450531
Filing Date: 2016-09-20
CPC Classification: D06F,H02P

Claim Text:
1. A control method of a washing machine, the method comprising: performing first-stage rotation in which a drum is accelerated to rotate at a predetermined rotational speed and is decelerated; performing second-stage rotation in which the drum is rotated at a first target RPM for a dehydration of a laundry in the drum when a predetermined time has passed after the first-stage rotation ends; performing deceleration rotation in which the rotational speed of the drum is kept at a lower value than in the first-stage rotation; and performing third-stage rotation in which the drum is rotated at a second target RPM that is greater than the rotational speed of the drum in the deceleration rotation for a dehydration of a laundry in the drum, wherein the deceleration rotation is performed for a greater time than in the second-stage rotation and in the third-stage rotation, wherein the performing of the deceleration rotation includes iteratively performing rotation and pause of the drum to allow the laundry adhered to an inner circumferential surface of the drum to fall from the inner circumferential surface of the drum, and wherein the performing of the deceleration rotation includes supplying hot air into the drum via a heater.