US20100095465A1 - Method for controlling washing machine - Google Patents

Method for controlling washing machine Download PDF

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Publication number
US20100095465A1
US20100095465A1 US12/425,645 US42564509A US2010095465A1 US 20100095465 A1 US20100095465 A1 US 20100095465A1 US 42564509 A US42564509 A US 42564509A US 2010095465 A1 US2010095465 A1 US 2010095465A1
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US
United States
Prior art keywords
rinsing
washing
course
pattern
detergent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/425,645
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English (en)
Inventor
Pyoung Hwan Kim
Eun jin Park
Dong Woo Kang
Myoung Suk You
Deug Hee Lee
Kyu Won Lee
Hyung Yong Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KANG, DONG WOO, KIM, HYUNG YONG, KIM, PYOUNG HWAN, LEE, DEUG HEE, LEE, KYU WON, PARK, EUN JIN, YOU, MYOUNG SUK
Publication of US20100095465A1 publication Critical patent/US20100095465A1/en
Abandoned legal-status Critical Current

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/38Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20Washing liquid condition, e.g. turbidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20Washing liquid condition, e.g. turbidity
    • D06F2103/22Content of detergent or additives
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58Indications or alarms to the control system or to the user
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress

Definitions

  • the present invention relates to a method for controlling a washing machine.
  • the washing machine treats laundry through courses of washing-rinsing-spinning, and, sometimes, drying after the spinning.
  • an amount of the laundry such as clothes introduced to a drum, is measured.
  • an amount of washing water, an amount of detergent, a total washing time period, and so on are set automatically.
  • the washing course is performed, accordingly.
  • washing water is drained from a tub, and new washing water is supplied to the tub, and the rinsing course is performed.
  • the washing water is drained from the tub, and the drum is spun for extracting water from the laundry.
  • the related art washing machine has a problem in that accurate measurement of an amount of remained detergent is difficult after the washing course is performed before starting the rinsing course, resulting in difficulty in providing an optimum rinsing course proper to the amount of remained detergent.
  • the present invention is directed to a method for controlling a washing machine.
  • An object of the present invention is to provide a method for controlling a washing machine, in which functioning of a safe rinsing is shown to a user visibly for improving user's reliability.
  • a method for controlling a washing machine having a detergent amount calculating step for calculating a remained detergent amount at the time of finishing a washing course or a starting of a rinsing course by means of a conductivity sensor, and a determining step for determining whether an additional rinsing is performed or not according to the remained detergent amount calculated thus, the method includes a user informing step for informing a change of the rinsing pattern to the user if the rinsing pattern which is a parameter that gives influence to the rinsing course with reference to the remained detergent amount calculated in the detergent amount calculating step.
  • the rinsing pattern includes at least one of a rinsing water level, a rinsing time period, a number of rinsing times, a rinsing temperature.
  • the user informing step includes the step of informing the change of a number of rinsing times at a fist time of rinsing performed after the change.
  • the user informing step includes the step of displaying a visualized pattern on a display unit such that the user can make easy notice.
  • the visualized pattern is a kai pattern which is partial swing actions of a drum in left/right directions made into a pattern.
  • FIG. 1 illustrates a section of a drum type washing machine in accordance with a preferred embodiment of the present invention.
  • FIG. 2 illustrates a block diagram showing relations among a conductive sensor, control unit and a memory.
  • FIG. 3 illustrates a diagram of a display unit on a control panel in accordance with a preferred embodiment of the present invention, schematically.
  • FIG. 4 illustrates a flow chart showing the steps of a method for controlling a drum type washing machine in accordance with a preferred embodiment of the present invention.
  • FIG. 5 illustrates a flow chart continuous from A in FIG. 4 .
  • FIG. 6 illustrates a flow chart continuous from B in FIG. 4 .
  • FIG. 7 illustrates an order of display of the pattern displayed in a C part in FIG. 3 .
  • the drum type washing machine includes a cabinet 110 which forms an exterior of the drum type washing machine, a tub mounted in the cabinet 110 for holding washing water, a drum 130 rotatably mounted in the tub 120 , a motor 160 for driving the drum 130 , a display unit 117 a (See FIG. 3 ) for displaying an operation state of the washing machine, a control unit 300 for controlling units of the washing machine if functions of the washing machine are selected, and a control panel 117 a (See FIG. 2 ) having a memory for storing various kinds of information.
  • the cabinet 110 forms an exterior of the washing machine. Mounted in the cabinet 110 , there are the tub 120 for holding the washing water, and a drum 130 rotatably coupled to the tub 120 for holding laundry.
  • a water supply hose 140 for supplying the washing water to the tub 120 from an external water source.
  • a water supply valve 141 for controlling a water flow.
  • a detergent supply unit 142 for holding the detergent. The detergent is introduced to the tub 120 together with the washing water supplied through the water supply hose 140 .
  • the motor 160 is mounted in rear of the tub 120 , and coupled to the drum 130 through a rotation shaft 165 for rotating the drum 130 .
  • a heater 125 for controlling a temperature of the washing water
  • a temperature sensor for measuring the temperature of the washing water
  • an electrode 200 for sensing conductivity of the washing water.
  • the electrode sensor 200 is controlled by the control unit 300 which controls the washing machine.
  • Hardness of the washing water is influenced from ions dissolved in the washing water. If the detergent dissolves in the washing water to form ions, the hardness of the washing water becomes higher. Because the higher the hardness of the washing water, the higher the ion content of the washing water, the conductivity of the washing water also becomes the higher.
  • the amount of the detergent can be calculated by means of the electrode sensor 200 which measures the conductivity.
  • the electrode sensor 200 is also known as an eco sensor or a smart sensor. And, the rinsing course with the eco sensor is called as a safe rinsing (Since the electrode sensor is shown as an example of the eco sensor, the eco sensor will be described without giving an additional reference numeral thereto).
  • the washing machine having the eco sensor applied thereto automatically sets the washing parameters or the courses according to the amount of the laundry, or sets the rinsing course again proper to the amount of the laundry or the hardness of the washing water measured even if the user sets the courses of washing, rinsing, and spinning.
  • a rinsing time period, a number of rinsing times, an amount of the washing water to be used in the rinsing, and so on are set again according to the remained detergent for performing the rinsing course.
  • the rinsing course can be progressed different from the rinsing course the user sets. In this case it is required to inform this to the user for preventing the user from changing the setting for progressing the proper rinsing course according to a state of the washing water and the amount of the detergent.
  • the eco sensor In the washing machine having the electrode sensor, called as the eco sensor, applied thereto, a method for giving information on a change of the rinsing course by the eco sensor to the user will be described. At first, a method for calculating the detergent amount by using the eco sensor will be described with reference to FIGS. 4 to 6 .
  • the washing water is supplied to a first water level to the tub 120 , and first hardness of the washing water supplied to the tub 120 is measured (S 110 ).
  • the first hardness is hardness of pure washing water having no detergent contained therein.
  • the hardness of the pure washing water can be measured by making the pure washing water to be supplied to the tub 120 by leading the washing water to a reserve space in the detergent supplying unit 142 for holding reserve detergent which the user does not use generally.
  • the first hardness is obtained by measuring the conductivity of the washing water applied to the electrode sensor 200 , and calculating the first hardness with reference to the conductivity of the washing water measured thus.
  • the first hardness measured thus is stored in the memory 250 .
  • the washing water is supplied to a second water level through the steps of opening the water supply valve 141 , and introduction of the detergent and the washing water to the tub 120 together as the washing water is made to pass through the detergent supply unit 142 .
  • the conductivity of the washing water is sensed with the electrode sensor 200 (S 120 ).
  • the drum 130 rotates for about 7 ⁇ 8 minutes, to agitate the laundry, not only wetting of the laundry is made, but also uniform dissolution of the detergent is made. It is preferable that the measurement of the conductivity of the washing water is made by means of the electrode sensor 200 in a state the detergent is dissolved in the washing water adequately thus.
  • the conductivity of the washing water is higher substantially when the power detergent is dissolved in the washing water compared to a case when the liquid detergent is dissolved in the washing water. Therefore, if the conductivity of the washing water is higher than the preset value, the washing course proceeds to a powder detergent washing course (S 160 ), and if the conductivity of the washing water is lower than the preset value, the washing course proceeds to a liquid detergent washing course (S 170 ).
  • the detergent amount dissolved in the washing water is calculated with reference to the conductivity of the washing water measured at the electrode sensor 200 (S 210 in FIG. 5 , and S 310 in FIG. 6 ).
  • the detergent amount dissolved in the washing water can be calculated from a detergent determination table input in advance, wherein the detergent determination table is a table showing the detergent amount dissolved in the washing water with reference to the conductivity of the washing water.
  • a rinsing pattern is set according to the detergent amount calculated thus, and if the washing course is finished, the rinsing course is performed according to the rinsing pattern set thus.
  • the rinsing pattern is a concept which includes parameters that can influence to the rinsing, such as a rinsing water level, a rinsing time period, a number of rinsing times, and so on.
  • the rinsing course may be set such that the greater the detergent amount calculated thus, the higher the rinsing level, and the greater the rinsing time period and the number of rinsing times.
  • the washing pattern is a concept which includes parameters that can influence to a washing capability in performing washing, such as a washing water level, a washing time period, a heating time period of a heater, and so on in the washing course.
  • the powder detergent washing course is different from the liquid detergent washing course in that a brief rinsing is performed at an end of the washing course (S 215 ).
  • the brief rinsing is rinsing of the detergent absorbed in the laundry at the end of the washing course, in which an amount of the washing water smaller than the rinsing course performed after the washing course is used, and the laundry is rinsed for a time period shorter than the rinsing course performed after the washing course.
  • the conductivity of the washing water is also measured with the electrode sensor 200 , and the remained detergent amount after the initial rinsing course is calculated with reference to the conductivity of the washing water measured thus (S 230 in FIG. 5 , and S 330 in FIG. 6 ).
  • the remained detergent amount after the initial rinsing course is calculated for determining whether an additional rinsing is performed or not with reference to the detergent amount calculated thus.
  • a final rinsing is performed (S 240 and S 340 ), and if the detergent amount calculated thus is higher than the preset value, an additional rinsing is performed between the initial rinsing and the final rinsing (S 250 in FIG. 5 , and S 350 in FIG. 6 ).
  • the additional rinsing is a rinsing performed additionally between the initial rinsing performed initially and the final rinsing performed finally after the washing course is finished, selectively.
  • the rinsing with the powder detergent is poorer than the rinsing with the liquid detergent. Therefore, as the detergent amount dissolved in the washing water is generally higher than the preset value in the initial rinsing if the powder detergent is introduced, in most of cases, the additional rinsing is performed in the rinsing course of the powder detergent washing course. However, in the liquid detergent washing course, the additional rinsing is performed only when the detergent amount dissolved in the washing water is higher than the preset value in the initial rinsing.
  • the additional rinsing is determined with reference to the detergent amount calculated thus, at the time a first time rinsing course is performed after a final water supply and heating is finished after the washing is finished, in which a number of the rinsing times changes, the change of a number of the rinsing times is informed to the user.
  • the informing of the change can be made by displaying a particular pattern on the display unit 117 a.
  • the particular pattern may be a kai pattern or the like that makes rotation of the laundry into a pattern.
  • the kai pattern makes one time of partial rotation of the drum in left/right direction (a swing action) into a pattern.
  • a swing action By displaying the swing action repeatedly for around two times, the change of the rinsing pattern owing to operation of the eco sensor (the electrode sensor described before) is informed to the user.
  • the kai pattern may be displayed on a C part in FIG. 3 .
  • the operation of the eco sensor is informed in advance by displaying a message that a detergent concentration is under checking, the particular pattern like the kai pattern may be displayed at the time an actual rinsing is performed changed from an original rinsing pattern set before.
  • the pattern display is made at a first time of the changed rinsing course, preferably by repeating the swing action for around 20 seconds before the washing water is drained after the rinsing course.
  • control unit 300 controls the display unit 117 a so that the particular pattern, such as the kai pattern, can be shown to the user at the same time with the determination of the additional rinsing in the S 250 and S 350 steps in FIGS. 5 and 6 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
US12/425,645 2008-10-22 2009-04-17 Method for controlling washing machine Abandoned US20100095465A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080103402A KR101513036B1 (ko) 2008-10-22 2008-10-22 세탁기의 제어 방법
KR10-2008-0103402 2008-10-22

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US12/425,645 Abandoned US20100095465A1 (en) 2008-10-22 2009-04-17 Method for controlling washing machine

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US (1) US20100095465A1 (fr)
KR (1) KR101513036B1 (fr)
CN (1) CN101725012A (fr)
DE (1) DE102009044264A1 (fr)
FR (1) FR2937344A1 (fr)

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EP2602380A1 (fr) * 2011-12-08 2013-06-12 Samsung Electronics Co., Ltd Machine à laver avec capteur de conductivité et procédé de commande du cycle de rinçage
US20140236328A1 (en) * 2011-09-09 2014-08-21 Panasonic Corporation Laundry system, communication device, communication method, communication program and washing machine
WO2015197108A1 (fr) * 2014-06-24 2015-12-30 Electrolux Appliances Aktiebolag Procédé de commande d'un appareil de lavage et appareil de lavage
US9271627B2 (en) 2012-08-28 2016-03-01 Whirlpool Corporation Household appliance having a physical alteration element
US9416482B2 (en) 2012-08-28 2016-08-16 Whirlpool Corporation Household appliances and methods of control
DE102015204538A1 (de) * 2015-03-13 2016-09-15 BSH Hausgeräte GmbH Waschmaschine mit elektrochemischer Wasserhärtebestimmung sowie Verfahren zu ihrem Betrieb
US9850618B2 (en) 2012-08-28 2017-12-26 Whirlpool Corporation Household appliance having a physical alteration element
US9970148B2 (en) 2012-08-28 2018-05-15 Whirlpool Corporation Household appliance having a physical alteration element
US10161075B2 (en) 2016-06-30 2018-12-25 Midea Group Co., Ltd. Laundry washing machine with automatic detection of detergent deficit
US10161074B2 (en) 2016-06-30 2018-12-25 Midea Group Co., Ltd. Laundry washing machine with automatic detergent dispensing and/or rinse operation type selection
US10273622B2 (en) 2016-06-30 2019-04-30 Midea Group Co., Ltd. Laundry washing machine with automatic selection of load type
US10358760B2 (en) * 2016-06-30 2019-07-23 Midea Group Co., Ltd. Laundry washing machine with automatic rinse operation type selection
US10508374B2 (en) 2014-06-24 2019-12-17 Electrolux Appliances Aktiebolag Method for operating a laundry washing appliance and laundry washing appliance implementing the same
US10508375B2 (en) 2014-06-24 2019-12-17 Electrolux Appliances Aktiebolag Method for operating a washing appliance and washing appliance
US20220162790A1 (en) * 2019-02-27 2022-05-26 Electrolux Appliances Aktiebolag A method for washing laundry in a laundry washing machine and laundry washing machine implementing the method
US11371175B2 (en) 2020-06-04 2022-06-28 Midea Group Co., Ltd. Laundry washing machine with dynamic selection of load type
US11773524B2 (en) 2020-12-18 2023-10-03 Midea Group Co., Ltd. Laundry washing machine color composition analysis during loading
US11866868B2 (en) 2020-12-18 2024-01-09 Midea Group Co., Ltd. Laundry washing machine color composition analysis with article alerts
US11898289B2 (en) 2020-12-18 2024-02-13 Midea Group Co., Ltd. Laundry washing machine calibration

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KR101692719B1 (ko) * 2008-04-30 2017-01-04 엘지전자 주식회사 세탁장치의 제어방법
KR101530849B1 (ko) * 2011-01-04 2015-06-23 삼성전자 주식회사 세탁기 및 그 제어방법
KR101933139B1 (ko) * 2012-01-10 2018-12-28 삼성전자주식회사 드럼 세탁기
DE102012208618A1 (de) 2012-05-23 2013-11-28 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine und Verfahren zum Steuern einer Waschmaschine
CN105177920B (zh) * 2015-08-06 2018-08-28 无锡小天鹅股份有限公司 洗衣机及其控制方法
CN107780153A (zh) * 2016-08-29 2018-03-09 青岛海尔滚筒洗衣机有限公司 一种洗衣机投放盒的设置方法及洗衣机
CN108245105B (zh) * 2018-01-22 2020-09-22 佛山市顺德区美的洗涤电器制造有限公司 洗涤电器系统的控制方法及洗涤电器系统及洗涤电器
CN110699909A (zh) * 2018-07-10 2020-01-17 青岛海尔洗衣机有限公司 一种衣物处理系统的控制方法
CN112176640B (zh) * 2019-06-14 2023-08-18 青岛海尔洗衣机有限公司 一种洗衣机的控制方法

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Cited By (28)

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US20140236328A1 (en) * 2011-09-09 2014-08-21 Panasonic Corporation Laundry system, communication device, communication method, communication program and washing machine
US9850613B2 (en) * 2011-09-09 2017-12-26 Panasonic Intellectual Property Management Co., Ltd. Laundry system, communication device, communication method, communication program and washing machine
EP2602380A1 (fr) * 2011-12-08 2013-06-12 Samsung Electronics Co., Ltd Machine à laver avec capteur de conductivité et procédé de commande du cycle de rinçage
US10271708B2 (en) 2012-08-28 2019-04-30 Whirlpool Corporation Method of operating a household appliance
US11668041B2 (en) 2012-08-28 2023-06-06 Whirlpool Corporation Household appliance having a physical alteration element
US9271627B2 (en) 2012-08-28 2016-03-01 Whirlpool Corporation Household appliance having a physical alteration element
US9416482B2 (en) 2012-08-28 2016-08-16 Whirlpool Corporation Household appliances and methods of control
US11111621B2 (en) 2012-08-28 2021-09-07 Whirlpool Corporation Household appliance having a physical alteration element
US9850618B2 (en) 2012-08-28 2017-12-26 Whirlpool Corporation Household appliance having a physical alteration element
US9970148B2 (en) 2012-08-28 2018-05-15 Whirlpool Corporation Household appliance having a physical alteration element
US10704183B2 (en) 2012-08-28 2020-07-07 Whirlpool Corporation Household appliance having a physical alteration element
US10400377B2 (en) 2014-06-24 2019-09-03 Electrolux Appliances Aktiebolag Method for operating a washing appliance and washing appliance
WO2015197108A1 (fr) * 2014-06-24 2015-12-30 Electrolux Appliances Aktiebolag Procédé de commande d'un appareil de lavage et appareil de lavage
US10508375B2 (en) 2014-06-24 2019-12-17 Electrolux Appliances Aktiebolag Method for operating a washing appliance and washing appliance
US10508374B2 (en) 2014-06-24 2019-12-17 Electrolux Appliances Aktiebolag Method for operating a laundry washing appliance and laundry washing appliance implementing the same
DE102015204538A1 (de) * 2015-03-13 2016-09-15 BSH Hausgeräte GmbH Waschmaschine mit elektrochemischer Wasserhärtebestimmung sowie Verfahren zu ihrem Betrieb
US11230803B2 (en) 2016-06-30 2022-01-25 Midea Group Co., Ltd. Laundry washing machine with automatic selection of load type
US10161075B2 (en) 2016-06-30 2018-12-25 Midea Group Co., Ltd. Laundry washing machine with automatic detection of detergent deficit
US10858774B2 (en) 2016-06-30 2020-12-08 Midea Group Co., Ltd. Laundry washing machine with automatic detergent dispensing and/or rinse operation type selection
US11072879B2 (en) 2016-06-30 2021-07-27 Midea Group Co., Ltd. Laundry washing machine with automatic rinse operation type selection
US10358760B2 (en) * 2016-06-30 2019-07-23 Midea Group Co., Ltd. Laundry washing machine with automatic rinse operation type selection
US10161074B2 (en) 2016-06-30 2018-12-25 Midea Group Co., Ltd. Laundry washing machine with automatic detergent dispensing and/or rinse operation type selection
US10273622B2 (en) 2016-06-30 2019-04-30 Midea Group Co., Ltd. Laundry washing machine with automatic selection of load type
US20220162790A1 (en) * 2019-02-27 2022-05-26 Electrolux Appliances Aktiebolag A method for washing laundry in a laundry washing machine and laundry washing machine implementing the method
US11371175B2 (en) 2020-06-04 2022-06-28 Midea Group Co., Ltd. Laundry washing machine with dynamic selection of load type
US11773524B2 (en) 2020-12-18 2023-10-03 Midea Group Co., Ltd. Laundry washing machine color composition analysis during loading
US11866868B2 (en) 2020-12-18 2024-01-09 Midea Group Co., Ltd. Laundry washing machine color composition analysis with article alerts
US11898289B2 (en) 2020-12-18 2024-02-13 Midea Group Co., Ltd. Laundry washing machine calibration

Also Published As

Publication number Publication date
DE102009044264A1 (de) 2010-05-06
KR20100044318A (ko) 2010-04-30
FR2937344A1 (fr) 2010-04-23
KR101513036B1 (ko) 2015-04-17
CN101725012A (zh) 2010-06-09

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AS Assignment

Owner name: LG ELECTRONICS INC.,KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, PYOUNG HWAN;PARK, EUN JIN;KANG, DONG WOO;AND OTHERS;REEL/FRAME:023601/0019

Effective date: 20091117

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION