EP2113600B1 - Trommelwaschmaschine - Google Patents

Trommelwaschmaschine Download PDF

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Publication number
EP2113600B1
EP2113600B1 EP09154605A EP09154605A EP2113600B1 EP 2113600 B1 EP2113600 B1 EP 2113600B1 EP 09154605 A EP09154605 A EP 09154605A EP 09154605 A EP09154605 A EP 09154605A EP 2113600 B1 EP2113600 B1 EP 2113600B1
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EP
European Patent Office
Prior art keywords
drum
rotating speed
washing
circulating pump
laundry
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.)
Not-in-force
Application number
EP09154605A
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English (en)
French (fr)
Other versions
EP2113600A1 (de
Inventor
Kiyoshi Sarada
Kenji Terai
Hiroyuki Inoue
Hiroyoshi Nomura
Hiroyuki Fujii
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.)
Panasonic Corp
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Panasonic Corp
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Publication date
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Publication of EP2113600A1 publication Critical patent/EP2113600A1/de
Application granted granted Critical
Publication of EP2113600B1 publication Critical patent/EP2113600B1/de
Not-in-force legal-status Critical Current
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance

Definitions

  • the present invention relates to a drum-type washing machine employing a circulating pump which discharges washing water at the bottom of a washing tub toward laundries during washing.
  • a conventional drum-type washing machine agitates laundries by rotation of a drum in a washing step.
  • the washing machine may be equipped with a circulating pump for discharging washing water at the bottom of a washing tub toward the laundries in the drum so as to enhance the washing effect.
  • Fig. 4 is a sectional view of the conventional drum-type washing machine equipped with the circulating pump.
  • Cylindrical washing tub 3 is disposed inside casing 1.
  • Motor 6 is fixed to a left external side face of washing tub 3.
  • Motor 6 rotatably supports cylindrical drum 5 with a bottom inside washing tub 3.
  • Water supply valve 12 for supplying washing water, water-level sensor 13 for detecting a water level of washing water, circulating pump 9 for circulating washing water, and circulating water passage 10 are connected to washing tub 3.
  • Controller 7 receives a signal from water-level sensor 13, and controls the operation of motor 6 and circulating pump 9 so as to execute a series of operations, including washing, rinsing, and dehydration.
  • baffle 14 provided on an inner side portion of drum 5 lifts up the laundry when drum 5 rotates, and lets the laundry fall due to its own weight. While the laundry is agitated and washed by beat-washing in this way, circulating pump 9 sprays washing water to the laundry from opening 15 created at an upper part of circulating water passage 10. This enhances the washing effect. However, if air bubbles enter circulating pump 9, they generate noise, or degrades washing performance due to generation of excessive foam.
  • This washing machine prevents generation of excessive foam by controlling circulating pump 9 in a way described next.
  • washing starts at water level A required in a washing step.
  • water-level sensor 13 detects the water level inside washing tub 3, and controller 7 stops the operation of circulating pump 9 when the water level decreases to predetermined first threshold B.
  • controller 7 drives circulating pump 9 again.
  • the rotating speed of drum 5 may be set to be obtain the beat-washing effect on the assumption that load becomes large due to absorbing large quantities of water in the laundry by driving circulating pump 9.
  • the laundry may stick to the drum and rotate together with the drum due to small laundry load and too fast rotating speed of drum 5. This degrades the washing effect.
  • US-2004/139557 A describes a method for controlling a driving of a drum type washing machine preventing vibration and noise of a drum, reducing a usage of washing water, and reducing rinse time, and an apparatus thereof.
  • the drum is rotated with a preset equilibrium speed faster than a speed that vibration of the drum is excessively generated accordingly as a rotation speed of the drum is decreased when a dewatering process of laundry is completed, and washing water is supplied into the drum type washing machine while maintaining the drum as the preset equilibrium speed.
  • JP-2003 334396 A describes a washing machine which reduces noise made in washing and spinning and performs safety control by detecting the water level and vibration of an outer tub with a simple constitution and at low costs.
  • a control part controls the optimal rotation frequency of a rotor blade or the washing and spinning tub (inner tub) to reduce vibration and noise made when starting washing and spinning and during spinning.
  • US-2002/016997 A describes low-speed prebalancing for washing machines.
  • a horizontally oriented laundry washing machine which includes automatic balancers is operated at a speed below the stick speed for the laundry load to redistribute portions of the load in the wash basket.
  • the load can be redistributed so that the load imbalance is sufficient low to speed up the wash basket through its natural resonant frequencies.
  • the drum-type washing machine of the present invention includes a washing tub, a cylindrical drum with a bottom, a driver, a baffle, a circulating water passage, a circulating pump, a vibration sensor, and a controller.
  • the washing tub holds washing water.
  • the drum is rotatably disposed inside the washing tub.
  • the driver for rotating the drum is disposed outside the washing tub.
  • the baffle for agitating laundry is provided on an inner peripheral side wall of the drum.
  • the circulating water passage is connected to the washing tub.
  • the circulating pump is provided in the circulating water passage and takes in washing water in the washing tub, and discharges it into the drum via the circulating water passage.
  • the vibration sensor detects vibration of the washing tub.
  • the controller receives a signal from the vibration sensor, and controls the operation of the driver and the circulating pump. In the washing operation, the controller intermittently operates the circulating pump. While the circulating pump is stopped, the controller controls the driver to rotate the drum in a first rotating speed. On the other hand, while the circulating pump is operated, the controller controls the driver to rotate the drum at a second rotating speed which is faster than the first rotating speed.
  • the laundry can be lifted up well by rotating the drum at high speed, even when a load applied to lifting of the laundry by the baffle increases due to the laundry becoming heavy by operating the circulating pump.
  • the washing power can thus be improved by selecting a drum rotating speed that satisfactorily lifts the laundry by the baffle, regardless of the operation state of the circulating pump.
  • Fig. 1 is a vertical sectional view of a drum-type washing machine in this exemplary embodiment of the present invention.
  • This washing machine includes casing 21, washing tub 23, cylindrical drum 25 with a bottom, driver 26, baffle 22, circulating water passage 30, circulating pump 29, vibration sensor 31, and controller 27.
  • Washing tub 23 holding washing water is disposed inside casing 21, and supported by multiple suspensions (not illustrated). Washing tub 23 has a substantially cylindrical shape that is axisymmetric to a rotating axis. In addition, the rotating axis of washing tub 23 is tilted upward to the front relative to the horizontal direction, with its bottom on the downside. An opening in washing tub 23 is openably covered with cover 28.
  • Drum 25 is rotatably disposed in washing tub 23.
  • Baffle 22 for agitating laundry is provided on an inner peripheral side wall of drum 25.
  • the peripheral side wall of drum 25 is provided with holes 33 for passing water.
  • Driver 26 is disposed outside washing tub 23, and rotates drum 25.
  • drum 25 is disposed inside washing tub 23, and is rotated by driver 26, such as a motor, provided on the bottom of washing tub 23.
  • Driver 26 is configured typically with a brushless motor, and controller 27 variably controls its rotating speed (number of revolutions per unit time).
  • Circulating pump 29 and circulating water passage 30 are provided under washing tub 23.
  • Circulating water passage 30 is connected to washing tub 23, and circulating pump 29 is provided in circulating water passage 30.
  • Circulating pump 29 takes in washing water (or rinsing water) held in washing tub 23, and discharges it into drum 25 from opening 34 provided on the front face of washing tub 23 via circulating water passage 30.
  • Vibration sensor 31 configured typically with an acceleration sensor is provided on a top part of washing tub 23. Vibration sensor 31 detects vibration of washing tub 23. Vibration sensor 31 continuously send an output signal to controller 27. Therefore, controller 27 can continuously monitor the vibration state of washing tub 23 during drum 25 is rotated.
  • controller 27 receives a signal from vibration sensor 31, and controls the operation of driver 26 and circulating pump 29 so as to control a series of washing steps. Controller 27 executes forward-reverse continuous pivot drive of drum 25 using driver 26. Controller 27 also controls a dehydration step, and so on.
  • driver 26 is activated by an instruction from controller 27 and drum 25 rotates when a user operates a control panel (not illustrated) to start the washing operation.
  • Controller 27 determines a quantity and quality of laundry based on a value of current traveling to driver 26 at this point. Based on this determination result, controller 27 opens water supply valve 32 so as to supply water to washing tub 23 until a predetermined water level.
  • a known water-level sensor (not illustrated) detects the water level, and sends a signal on water level to controller 27.
  • drum 25 rotates and agitates laundry 24 to start the washing operation.
  • controller 27 also starts the operation of Circulating pump 29. Circulating pump 29 is intermittently operated to suppress generation of foam.
  • Fig. 2 illustrates movement of clothes (laundry), washing power, and shaking of washing tub in the drum-type washing machine in this exemplary embodiment.
  • baffle 22 sufficiently lifts up laundry 24, and then lets it fall, making a substantially reverse-U shaped curve.
  • This state includes a so-called beat-washing movement.
  • drum 25 is operated at a rotating speed optimal for obtaining a high washing power. Since washing tub 23 shakes strongly, vibration sensor 31 detects a large level of vibration.
  • the rotating speed of drum 25 needs to be controlled optimally In other words, the beat-washing state shown in Fig. 2 (a) is needed.
  • optimal rotating speed delicately changes momentarily by type and quantity of laundry 24, moisture content in laundry24, and how clothes are entangled.
  • laundry 24 at the lower part of drum 25 moves together with the inner side wall of drum 25 as drum 25 rotates, and baffle 22 catches laundry 24 to lift it up. Then, laundry 24 falls when the dropping force surpasses the centrifugal force in a balance of the centrifugal force generated by rotation of drum 25 and a dropping force of wet laundry 24.
  • Fig. 3 illustrates how the washing step is controlled in the drum-type washing machine in this exemplary embodiment. More specifically, Fig. 3 illustrates the relationship of the rotating direction and rotating speed of drum 25, on and off of the operation of circulating pump 29, and output of vibration sensor 31 with respect to the elapse of time from start of the washing step.
  • controller 27 changes the rotating speed of drum 25 in a stepwise fashion, while driving circulating pump 29, so as to detect shaking of washing tub 23 by an output of vibration sensor 31 (S01). Through this operation, controller 27 determines an optimal rotating speed of drum 25 for satisfactorily lifting up laundry 24 in drum 25 by baffle 22.
  • controller 27 controls driver 26 to change the rotating speed of drum 25 stepwise at the beginning of washing operation, and compares outputs of vibration sensor 31 in each rotating speed.
  • a reference rotating speed is determined so that an optimal rotating speed corresponding to each of a broad range of loads from no-load to rated load can be selected.
  • an optimal rotating speed is selectable in a short time by not selecting a rotating speed at too fine intervals more than necessary.
  • controller 27 changes the rotating speed of drum 25 in a stepwise fashion from 41 rpm to 53 rpm by 4 rpm each.
  • a variation range and intervals are preferably set within a practically-selectable range and also within the minimum necessaxy, taking into consideration quantity and texture of laundry 24.
  • the range is determined based on the size of drum 25, shape of baffle 22, setting for rotating speed, and so on of a commercially-available washing machine at present, regardless of the operation of circulating pump 29.
  • laundry 24 just rolls at a lower part of drum 25 in any condition of laundry 24 when the rotating speed is below 41 rpm, which is an underwater oscillating state.
  • the rotating speed becomes higher than 53 rpm, the moisture content in laundry 24 is rapidly discharged, and drum 25 rotates with laundry 24 pressed to the inner side wall of drum 25. In other words, laundry 24 is washed in the state shown in Fig. 2(C) , and thus the washing effect degrades.
  • controller 27 can preferably determine an optimal rotating speed by increasing the rotating speed in a stepwise fashion at this interval.
  • step S01 in Fig. 3 outputs detected by vibration sensor 31 are small at the rotating speed of 41 rpm and 45 rpm. This is the state that laundry 24 rolls at the lower part of drum 25, as shown in Fig. 2 (b) . At this point, laundry 24 contains large quantities of water and the centrifugal force of drum 25 is also not so large. Therefore, laundry 24 slides down from the inner wall of drum 25, even if lifted, and laundry 24 always oscillates at the lower part of drum 25.
  • controller 27 sets the optimal rotating speed of rotating drum 25 to 49 rpm when circulating pump 29 is activated. This enables optimal washing.
  • the rotating direction of drum 25 in step S01 is one direction (rightward in Fig. 3 ), and the rotation of drum 25 is kept turned ON during step S01.
  • controller 27 proceeds to a normal washing control of a drum-type washing machine, and repeats ON and OFF of the rotation of drum 25, and reverses the rotating direction of drum 25 to left and right to execute a washing step (S02).
  • controller 27 rotates drum 25 at the rotating speed determined in step S01 using driver 26.
  • Step S03 is pre-programmed, taking into account factors including suppression of foam generated by operating circulating pump 29 and lowering of water level in washing tub 23. This program is also applied in the case requiring a sudden stop of the operation of circulating pump 29 if abnormal generation of foam or lowered water level is detected.
  • controller 27 operates drum 25 at a rotating speed lower than the rotating speed while circulating pump 29 is operated. In other words, controller 27 intermittently activates circulating pump 29. While circulating pump 29 is stopped, driver 26 is controlled to rotate drum 25 at the fist rotating speed. While circulating pump 29 is operated, driver 26 is controlled to rotate drum 25 at the second rotating speed faster than the first rotating speed.
  • the first rotating speed is 45 rpm as shown by D
  • the second rotating speed is 49 rpm.
  • controller 27 reduces the rotating speed of drum 25 by 4 rpm.
  • an increase of foam is prevented by stopping circulating pump 29, without stopping the washing operation, so as to encourage elimination of foam. If the water level lowers, a problem related to foam is solved by returning the washing water into drum 25.
  • the operation of circulating pump 29 is restarted, and the rotating speed of drum 25 is returned to the second rotating speed (S04).
  • controller 27 rotates drum 25 at the second rotating speed, which is a high speed.
  • the centrifugal force of drum 25 surpasses the dropping force of laundry 24 soaked with water. Accordingly, laundry 24 is lifted up well, and laundry 24 falls and is beaten even when laundry 24 is soaked with water. As a result, the washing force is improved
  • An optimal reduction range for the rotating speed of drum 25 is determined by an internal diameter of drum 25 and the shape and the number of baffles 22. In case of commercialized general household drum-type washing machines, the optimal range confirmed through experiments is around 5 rpm. Accordingly, the first rotating speed is preferably lower than the second rotating speed by between 4rpm and 6 rpm, inclusive.
  • the moisture content in laundry 24 changes, and in turn the load changes, by conditions related to activation and stoppage of circulating pump 29.
  • the rotating speed of drum 25 is changed to achieve the beat-washing state even if the load changes. Accordingly, the washing power can be improved.
  • a rotating speed that increases the output of vibration sensor 31 in a state that circulating pump 29 is operated is set as a reference rotating speed.
  • the maximum output of vibration sensor 31 in the state that circulating pump 29 is stopped may be larger than the maximum output of vibration sensor 31 in the state that circulating pump 29 is operated.
  • circulating pump 29 is stopped in step S01, and a rotating speed that increases the output of vibration sensor 31 in this state may be set as a reference rotating speed.
  • controller 27 selects the first rotating speed or the second rotating speed that causes a larger output of vibration sensor 31 as a reference rotating speed, while drum 25 is rotated.
  • controller 27 sets the rotating speed in multiple steps under a condition that circulating pump 29 is activated or stopped, and then the rotating speed is sequentially increased. Based on detection results of vibration sensor 31 in each rotating speed, an optimal rotating speed of drum 25 that achieves strong shaking of washing tub 23 and high washing power is selected. If the operation state of circulating pump 29 is switched, controller 27 immediately changes the rotating speed of drum 25 so as to realize an optimal movement of laundry 24 that does not degrade the washing effect.
  • the rotating speed that causes an intense movement of lifting up laundry 24 by baffle 22 and dropping laundry 24 to drum 25 is selected. Accordingly, laundry 24 is lifted up and beat-washed well, improving the washing power.
  • the rotating speed of drum 25 that causes a larger output of vibration sensor 31 when drum 25 is rotated may be selected as a reference in the rotating speeds of drum 25 while circulating pump 29 is operated or stopped during washing. This control results in selecting the rotating speed that causes an intense movement of lifting up laundry 24 by baffle 22 and dropping laundry 24 to drum 25.
  • the above example describes the case that a ratio of circulating pump 29 in operation is higher to a ratio of circulating pump 29 in a stopped state during the washing step. Accordingly, the optimal rotating speed of drum 25 is determined in step S01 in the activated state of circulating pump 29.
  • step S01 for determining the rotating speed of drum 25 at the beginning of the washing step in the stopped state of circulating pump 29.
  • controller 27 determines the reference rotating speed in the activated or stopped state of circulating pump 29, whichever accounts for a larger proportion.
  • the drum-type washing machine of the present invention rotates drum 25 at a high rotating speed while circulating pump 29 is operated, so as to satisfactorily lift up laundry 24. This enables improvement of washing power. Accordingly, the present invention is effectively applicable to a drum-type washing machine equipped with circulating pump 29.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Centrifugal Separators (AREA)

Claims (3)

  1. Waschmaschine vom Trommeltyp, die Folgendes aufweist:
    eine Waschwanne (23) zum Aufnehmen von Waschwasser,
    eine zylindrische Trommel (25) mit einem Boden, die in der Waschwanne (23) drehbar angeordnet ist,
    einen Antrieb (26) zum Drehen der Trommel (25), der außerhalb der Waschwanne (23) angeordnet ist,
    einen Mitnehmer (22) zum Rühren von Wäsche, der an einer innenumfänglichen Seitenwand der Trommel (25) vorgesehen ist,
    eine Wasserumwälzleitung (30), die mit der Waschwanne (23) verbunden ist,
    eine Umwälzpumpe (29) zum Einfluss des in der Waschwanne (23) aufgenommenen Waschwassers von der Waschwanne (23) und zum Abfluss des Waschwassers in die Trommel (25) über die Wasserumwälzleitung (30), wobei die Umwälzpumpe (29) in der Wasserumwälzleitung (30) vorgesehen ist,
    einen Vibrationssensor (31) zum Detektieren der Vibration der Waschwanne (23), und
    eine Steuerung (27) zum Empfangen eines Signals vom Vibrationssensor (31), um eine Betätigung des Antriebs (26) und der Umwälzpumpe (29) zu steuern,
    wobei die Steuerung (27) während eines Waschganges die Umwälzpumpe (29) zeitweise betätigt,
    dadurch gekennzeichnet, dass
    die Steuerung (27) so ausgelegt ist, dass sie unter der Bedingung, dass die Umwälzpumpe (29) aktiviert oder gestoppt wird, in mehreren Schritten eine Drehgeschwindigkeit einstellt und am Beginn des Waschganges sequentiell die Drehgeschwindigkeit schrittweise erhöht, wobei bei jeder Drehgeschwindigkeit eine optimale Drehgeschwindigkeit der Trommel (25) zum optimalen Waschen anhand der Detektionsergebnisse des Vibrationssensors (31) ausgewählt wird,
    die Steuerung (27) ferner so ausgelegt ist, dass sie den Antrieb (26) steuert, um die Trommel (25) mit einer ersten Drehgeschwindigkeit (D) zu drehen, wenn die Umwälzpumpe (29) gestoppt wird, und den Antrieb (26) steuert, um die Trommel (25) mit einer zweiten Drehgeschwindigkeit (E), die höher ist als die erste Drehgeschwindigkeit (D), zu drehen, wenn die Umwälzpumpe (29) betätigt wird,
    wobei die erste Drehgeschwindigkeit (D) oder die zweite Drehgeschwindigkeit (E) die optimale Drehgeschwindigkeit ist,
    wobei die zweite Drehgeschwindigkeit (E) um einen Schritt höher ist als die erste Drehgeschwindigkeit (D),
    wobei der Schritt durch einen Innendurchmesser der Trommel (25) und durch die Form und Anzahl der Mitnehmer (22) vorgegeben ist.
  2. Waschmaschine vom Trommeltyp nach Anspruch 1, wobei
    die erste Drehgeschwindigkeit um nicht weniger als 4 U/min und nicht mehr als 6 U/min niedriger ist als die zweite Drehgeschwindigkeit.
  3. Waschmaschine vom Trommeltyp nach Anspruch 1, wobei die Steuerung (27) so ausgelegt ist, dass sie am Beginn des Waschganges den Antrieb (26) steuert, um die Drehgeschwindigkeit der Trommel (25) schrittweise um 4 U/min von 41 U/min bis 53 U/min zu ändern.
EP09154605A 2008-04-28 2009-03-09 Trommelwaschmaschine Not-in-force EP2113600B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008116816 2008-04-28
JP2008261455A JP4325736B1 (ja) 2008-04-28 2008-10-08 ドラム式洗濯機

Publications (2)

Publication Number Publication Date
EP2113600A1 EP2113600A1 (de) 2009-11-04
EP2113600B1 true EP2113600B1 (de) 2011-01-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09154605A Not-in-force EP2113600B1 (de) 2008-04-28 2009-03-09 Trommelwaschmaschine

Country Status (7)

Country Link
EP (1) EP2113600B1 (de)
JP (1) JP4325736B1 (de)
CN (1) CN101570923B (de)
AT (1) ATE496160T1 (de)
DE (1) DE602009000595D1 (de)
RU (1) RU2394954C1 (de)
TW (1) TW201002899A (de)

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US11186934B2 (en) * 2017-12-28 2021-11-30 Lg Electronics Inc. Method for controlling washing machine
US11214908B2 (en) * 2017-12-28 2022-01-04 Lg Electronics Inc. Method for controlling washing machine
US12123122B2 (en) 2017-12-28 2024-10-22 Lg Electronics Inc. Washing machine, and method for controlling the same

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US9695537B2 (en) 2009-07-27 2017-07-04 Lg Electronics Inc. Control method of a laundry machine
US10533275B2 (en) 2009-07-27 2020-01-14 Lg Electronics Inc. Control method of a laundry machine
EP2423368B1 (de) * 2010-08-17 2016-08-24 Panasonic Corporation Trommelwaschmaschine
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KR101811975B1 (ko) 2012-09-24 2018-01-25 가부시끼 가이샤 구보다 차량
ITTO20121137A1 (it) * 2012-12-21 2014-06-22 Indesit Co Spa Metodo di controllo di una macchina lavabiancheria per l¿eliminazione di cattivi odori
EP3073006A1 (de) * 2015-03-27 2016-09-28 Whirlpool Corporation Verfahren zur detektion einer fehlfunktion einer umwälzpumpe in einer waschmaschine und waschmaschine mit solch einem verfahren
CN107303542A (zh) * 2016-04-19 2017-10-31 贺默(上海)仪器科技有限公司 离心机平衡检测系统
EP3235940B1 (de) * 2016-04-21 2020-07-29 Electrolux Appliances Aktiebolag Verfahren zur detektion von schaum in einer waschmaschine, und waschmaschine
DE102016212489A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
JPWO2018155228A1 (ja) * 2017-02-24 2019-11-07 パナソニックＩｐマネジメント株式会社 洗濯機およびその制御装置
EP3505669B1 (de) * 2017-12-28 2021-02-17 LG Electronics Inc. Waschmaschine und verfahren zur steuerung davon
KR102669131B1 (ko) * 2018-07-06 2024-05-23 엘지전자 주식회사 순환펌프 구동장치 및 세탁물 처리기기
CN111603056B (zh) * 2019-02-22 2023-08-11 佛山市顺德区美的电热电器制造有限公司 运行控制方法、设备、烹饪器具和计算机可读存储介质

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US12123122B2 (en) 2017-12-28 2024-10-22 Lg Electronics Inc. Washing machine, and method for controlling the same

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CN101570923A (zh) 2009-11-04
JP2009285449A (ja) 2009-12-10
TW201002899A (en) 2010-01-16
DE602009000595D1 (de) 2011-03-03
TWI367976B (de) 2012-07-11
RU2394954C1 (ru) 2010-07-20
CN101570923B (zh) 2011-04-13
JP4325736B1 (ja) 2009-09-02
EP2113600A1 (de) 2009-11-04
ATE496160T1 (de) 2011-02-15

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