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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12448715 B1

PDFFull Text
Date of Patent:
Oct. 21, 2025

Filed:

Sep. 29, 2022

Washing machine and controlling method for the same

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Wonjae Han, Suwon-si, KR;

Jeonggi Hong, Suwon-si, KR;

Sungjong Kim, Suwon-si, KR;

Hooijoong Kim, Suwon-si, KR;

Sukwoo Park, Suwon-si, KR;

Jaepoong Lee, Suwon-si, KR;

Sooyeon Jin, Suwon-si, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;

Attorney:

STAAS & HALSEY LLP

Primary Examiner:

Joseph L Perrin

Int. Cl.
CPC ...
D06F 34/08 (2020.01); D06F 33/42 (2020.01); D06F 33/47 (2020.01); D06F 33/48 (2020.01); D06F 34/34 (2020.01); D06F 37/30 (2020.01); D06F 39/08 (2006.01); D06F 103/18 (2020.01); D06F 103/42 (2020.01); D06F 103/48 (2020.01); D06F 105/08 (2020.01); D06F 105/58 (2020.01);
U.S. Cl.
CPC ...
D06F 34/08 (2020.02); D06F 33/42 (2020.02); D06F 33/47 (2020.02); D06F 33/48 (2020.02); D06F 34/34 (2020.02); D06F 37/30 (2013.01); D06F 39/08 (2013.01); D06F 39/082 (2013.01); D06F 39/085 (2013.01); D06F 2103/18 (2020.02); D06F 2103/42 (2020.02); D06F 2103/48 (2020.02); D06F 2105/08 (2020.02); D06F 2105/58 (2020.02);
Abstract

A washing machine for controlling optimal operating revolutions per minute (rpm) of a drain pump in a draining course and a dehydrating course includes a washing tub; a drain pump configured to drain water in the washing tub; a pump motor configured to operate the drain pump; an inverter circuit configured to supply a driving current to the pump motor to operate the drain pump; and a controller configured to control the inverter circuit to supply reference power to the pump motor in response to starting a draining course, determine reference revolutions per minute (rpm) based on average rpm of the pump motor during a preset period of time, and control the inverter circuit to operate the pump motor at the reference rpm in response to the determining of the reference rpm.

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