公开(公告)号：US20220186419A1

公开(公告)日：2022-06-16

申请号：US17543870

申请日：2021-12-07

Applicant: LG ELECTRONICS INC

Inventor： Woonje Choi ,  Boosung Kim ,  Sejin Kang

IPC: D06F34/10 ,  D06F34/06 ,  D06F58/20 ,  D06F34/18 ,  D06F58/48 ,  D06F58/38 ,  D06F58/44 ,  D06F29/00 ,  D06F105/28 ,  D06F103/08 ,  D06F105/52 ,  D06F105/40

Abstract: A method for controlling a laundry treatment apparatus is disclosed. The laundry treatment apparatus includes an upper treatment device and a lower treatment device. The upper treatment device includes a drying drum in which target laundry to be dried is placed, an upper driver to rotate the drying drum, a circulation passage unit through which air flows into or out of the drying drum, a heat exchanger to dehumidify and heat the air, and a steam generator to supply steam to the drying drum. The lower treatment device includes a tub to store wash water therein, a washing drum provided in the tub so that target laundry to be washed is put into the washing machine and the laundry is washed and dried, a tub heater provided in the tub to heat the wash water, and a lower driver to rotate the washing drum. The method for controlling the laundry treatment apparatus includes performing, by the lower treatment device, a washing course including a water supply step, a washing (rinsing) step, and a dehydration step, and performing, by the upper treatment device, a drying course including a hot air supply step, a fan operation step, and a dryness sensing step, wherein the lower treatment device performs the washing course by changing a configuration of at least one of an operation of the tub heater, an execution time of the washing course, and an operation of the lower driver according to a progress state of the drying course, thereby performing the washing course.