公开(公告)号：EP4026476A1

公开(公告)日：2022-07-13

申请号：EP22150714.8

申请日：2022-01-10

Applicant: LG Electronics Inc.

Inventor： SON, Changwoo ,  LEE, Byeongyong

IPC: A47L15/00

Abstract: A dishwasher may include a tub (16) that forms a washing chamber in which a washing target is accommodated, at least one spray nozzle (20, 22) that is rotatably provided in the washing chamber and sprays washing water to the washing chamber, a rack (30a, 30b) that is accommodated in the washing chamber and on which the washing target is held, and a microphone (400) provided in the tub (16). A method of controlling the dishwasher may include spraying washing water while the spray nozzle (20, 22) rotates, analyzing a characteristic of a sound wave input to the microphone (400), determining whether the washing target made of a set material is present based on the analyzed characteristic of the sound wave, when the washing target made of the set material is present, determining a location in which the washing target made of the set material is present based on the analyzed characteristic of the sound wave, and reducing an amount of impact applied to the washing target made of the set material by the washing water sprayed from the spray nozzle (20, 22).