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EP2025795B1 - Procédé de contrôle d'une machine à laver - Google Patents

Procédé de contrôle d'une machine à laver Download PDF

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Publication number
EP2025795B1
EP2025795B1 EP08009955.9A EP08009955A EP2025795B1 EP 2025795 B1 EP2025795 B1 EP 2025795B1 EP 08009955 A EP08009955 A EP 08009955A EP 2025795 B1 EP2025795 B1 EP 2025795B1
Authority
EP
European Patent Office
Prior art keywords
tub
water
heater
supplying
water level
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.)
Active
Application number
EP08009955.9A
Other languages
German (de)
English (en)
Other versions
EP2025795A2 (fr
EP2025795A3 (fr
Inventor
Seog Kyu Park
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
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2025795A2 publication Critical patent/EP2025795A2/fr
Publication of EP2025795A3 publication Critical patent/EP2025795A3/fr
Application granted granted Critical
Publication of EP2025795B1 publication Critical patent/EP2025795B1/fr
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Classifications

    • 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 
    • D06F33/46—Control of the energy or water consumption
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2103/18—Washing liquid 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
    • D06F2105/02—Water supply
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40—Steam generating arrangements

Definitions

  • the present invention relates to a laundry machine to wash laundry, and more particularly, to a laundry machine having a steam generator to supply steam to laundry.
  • laundry machines include, for example, a drum laundry machine, in which washing of laundry is implemented with a relatively small amount of water as the laundry received in a drum is lifted by lifters and falls due to gravity, and a pulsator or standing type laundry machine, in which a large amount of wash water is supplied into an upright drum such that washing of laundry is implemented by frictional water flow during rotation of the laundry.
  • drum laundry machines some include a heater mounted in a tub.
  • wash water can be heated using the heater and consequently, the laundry machines achieve improved washing using the heated wash water.
  • these conventional laundry machines have a problem of excessive consumption of energy because they have to heat a large amount of water in the tub.
  • the temperature of laundry or the environment temperature in the tub is one important factor affecting a washing result. Therefore, it is desirable to select a most effective one of various methods of raising the temperature of laundry or the environment temperature in the tub to a desired level.
  • Steam has a high temperature and thus, is advantageous to further raise a temperature of or around laundry, etc. Consequently, the steam can provide a laundry machine with improved washing.
  • the present invention is related to a controlling method of a laundry machine that substantially obviates one or more problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide a laundry machine having improved energy efficiency and improved washing performance.
  • the controlling method according to the present invention comprises: supplying water into a tub until a water level of the tub reaches a water level predetermined for a washing step; and controlling a steam heater and a tub heater until a temperature inside the tub reaches a temperature predetermined for the washing step at the predetermined water level.
  • the steam heater is a heater to heat water, so as to generate steam to be supplied to the tub.
  • the tub heater is a heater to heat wash water in the tub.
  • tub temperature a temperature inside the tub
  • water in the tub is at a predetermined water level
  • the predetermined temperature and the predetermined water level can be determined for a single washing step.
  • a variety of wash cycles including, for example, a heavy duty cycle, normal/casual cycle, and a delicate cycle can be provided.
  • each of the wash cycles generally includes a washing step, a rinsing step, a spin-drying step, etc.
  • the predetermined water level can be more than a minimum water level at which the tub heater in the tub can be completely immersed in the wash water.
  • the supplying of water into the tub until the water level of the tub reaches the predetermined water level is implemented at least until controlling of the heaters is completed. Accordingly, when the controlling of the heaters is completed, the wash water in the tub is at the predetermined water level, and the tub temperature is at the predetermined temperature.
  • the tub temperature can be an environment temperature in the drum or the tub, or can be a temperature of wash water in the tub.
  • a temperature sensor can be used to sense the environment temperature in the tub.
  • the temperature sensor can be used to sense a temperature of wash water in the tub.
  • the washing step can be continued for a predetermined time under conditions of the predetermined water level and the predetermined temperature. In this case, if the steam heater or the tub heater is not turned on again, the tub temperature will gradually decrease. Also, the wash water in the tub will be at the predetermined water level so long as wash water is not additionally supplied into the tub.
  • wash water can be desirable to supply no additional wash water after completing the controlling of the heaters. This is because the additionally supplied wash water can rapidly decrease the tub temperature. However, the additional supplying of wash water must not be excluded. When wash water is additionally supplied, it can be expected that the steam heater or the tub heater can be reactivated.
  • the predetermined water level and the predetermined temperature can be accomplished by only supplying steam, or by only heating the wash water in the tub.
  • more effective method in view of energy consumption, appropriately uses both the steam heater and the tub heater. In this case, it is important to match the supplying of wash water into the tub with the controlling of both the heaters.
  • the supplying of water is completed prior to beginning the controlling of the heaters. That is, after water is supplied until the water level in the tub reaches the predetermined water level, the tub temperature is raised to the predetermined temperature using the steam heater and the tub heater.
  • the steam heater and the tub heater can be alternately turned on, rather than being turned on simultaneously. This is because turning on the two heaters simultaneously can cause a shortage of electric power.
  • the On/Off controlling of the steam heater can be implemented depending on the tub temperature.
  • the controlling method can be implemented to supply steam to the laundry until the tub temperature reaches a predetermined temperature (lower than the above-mentioned predetermined temperature), rather than keeping the steam heater on for the predetermined time.
  • the tub heater prior to using the steam heater, can be used for a predetermined time (or until the tub temperature reaches a predetermined temperature), so as to heat the wash water in the tub.
  • steam is supplied to the tub by operation of the steam heater, and then, the tub heater is again operated.
  • the supplying of water is implemented such that the water,level in the tub rises gradually while the steam heater is kept on.
  • the gradual supplying of water is continued until the supplying of water is completed. That is, wash water is gradually supplied until the water level in the tub reaches the predetermined water level.
  • an initial supplying of water can be added, prior to the above-described gradual supplying of water. More specifically, after wash water is initially supplied to a level sufficient to permeate the laundry, the gradual supplying of water is implemented while the steam heater is kept on.
  • an amount of wash water appropriate to permeate the laundry received in a drum can be supplied for the initial supplying of water.
  • a circulation pump is operated to achieve uniform permeation of water throughout the laundry. If steam contacts to dry laundry, there is a risk, according to the kind of laundry, of damaging the laundry due to a high temperature of the steam. Such allowing water to uniformly permeate the laundry prior to supplying steam is also applicable to others (for example, the previously described first method or a third method that will be described hereinafter).
  • the steam heater is switched to "off", and the tub heater is turned on.
  • the controlling of the heaters is completed as the tub heater is switched to "off".
  • a water supply valve can be controlled such that it is opened and kept opened until the wash water in the tub reaches or exceeds the predetermined water level.
  • the water supply valve can be controlled during the initial supplying of water such that it is kept opened after opened, and then, is closed when the water level in the tub reaches or exceeds the predetermined water level. In other words, with one opening of the water supply valve, water reaches the predetermined level or higher. If the circulation pump is operated after the initial supplying of water, the wash water in the tub permeates the laundry in the drum, and thus the level of water in the tub goes down.
  • the wash water in the tub can be heated using the tub heater, prior to using the steam heater.
  • the tub heater is switched to "off".
  • the tub heater can be continuously used before the steam heater is used.
  • the water supply valve can be continuously kept in an opened state.
  • this may cause the wash water to be supplied at an excessively high flow rate. Therefore, the controlling of specific water supply valves can be performed in such a way that the water supply valve is intermittently opened and closed.
  • the supplying of water can comprise: initially supplying the water; and finally supplying the water up to the predetermined water level when or in between turning off the steam heater and turning on the tub heater.
  • water is supplied to the predetermined water level around a time when changing from a steam-heater-on mode to a tub-heater-on mode.
  • an intermediate supplying of water can be included between the initial supplying of water and the final supplying of water.
  • the intermediate supplying of water is a step of maintaining wash water supplied into the tub for the initial supplying of water within a predetermined range of level. As the wash water supplied during the initial supplying of water permeates the laundry, the water level in the tub decreases. In this case, to maintain the water level in the tub within a predetermined range, the intermediate supplying of water is performed.
  • the water supply valve is kept opened once opened for the initial supplying of water, and then, is closed when the water level in the tub reaches a first water level.
  • the water supply valve is controlled such that it is again opened if the water level in the tub reaches a lower limit of the predetermined range as the wash water permeates the laundry in the drum, and then, is closed if the water level in the tub reaches an upper limit of the predetermined range.
  • the upper limit of the water level within the predetermined range can be equal to the water level predetermined for the washing step.
  • the circulation pump can be controlled to be kept off. Since a part of wash water in the tub is introduced into a circulation passage during circulation thereof, the water level in the tub decreases. Such a decrease in the water level causes the tub heater to be exposed above the surface of the water, and consequently, causes overheating of the tub heater.
  • both the tub heater and the steam heater can be used together, in conjunction with a controlling of the water supply valve. Accordingly, the present invention can achieve improved energy efficiency.
  • the present invention can acquire a desired water level in the tub and a desired tub temperature, which could be hard to obtain when using steam alone.
  • FIG. 1 illustrates a drum laundry machine, which includes a steam generator and a tub heater to heat wash water received in a tub.
  • the drum laundry machine includes a cabinet 52 defining the exterior appearance of the drum laundry machine, a tub 56 supported in the cabinet 52 by means of a spring 54 and a damper assembly 55, a drum 58 located in the tub 56, a motor 60 located at a rear side of the tub 56 and used to rotate the drum 58, a steam generator 70 to generate steam by heating water, and a circulation pump 80 to pump wash water in the tub 56 upward for circulation of the wash water.
  • the drum 58 has a plurality of holes 58h perforated in a circumferential wall thereof, and is provided, at an inner wall surface thereof, with lifters 58a.
  • the above-described drum laundry machine further includes a water supply device 62 to supply wash water into the tub 56, and a water drain pump assembly 66 to drain the wash water.
  • the water supply device 62 includes a water supply valve assembly 62a, a first water supply passage 62c, and a detergent box assembly 62b in which detergent is stored.
  • the steam generator 70 is connected to the water supply valve assembly 62a through a second water supply passage 62c.
  • a tub heater 40 to heat wash water is installed in the tub 56. Also, a temperature sensor 45 is installed in the tub 56. The temperature sensor 45 can be installed at a different position from that shown in the drawing.
  • a steam passage 62d has a nozzle-shaped distal end 62d' to eject steam to laundry in the drum 58.
  • the nozzle-shaped distal end 62d' passes through a gasket 57 connected between the tub 56 and the cabinet 52.
  • Wash water is supplied into the tub through the water supply valve.
  • the supplying of water is implemented until the water level in the tub reaches a first water level WL 1 . More specifically, the water supply valve is closed when the water level in the tub reaches the first water level WL 1 . Then, when the water level decreases to a second water level WL 2 , the water supply valve is opened again to implement the supplying of water until the water level again reaches the first water level WL 1 .
  • the supplying of water is ended if the water level in the tub is kept at the first water level WL 1 via the above-described controlling of the opening/closing of the water supply valve.
  • the first water level WL 1 is a higher level than a lower end of the drum, and is determined such that at least a portion of laundry in the drum can be immersed in the wash water.
  • the water supply valve After the water supply valve is initially opened to supply wash water to the first water level WL 1 , a part of the wash water permeates the laundry, causing the water level in the tub to decrease. Thereby, when the water decreases to the second water level WL 2 , the water supply valve is again opened to implement the supplying of water. If the drum is rotated during the supplying of water, the wash water can more rapidly permeate the laundry.
  • An ending time point of the supplying of water is a time point when the supplying of water up to the first water level WL 1 is finally implemented in a state wherein the laundry is sufficiently wet so as to no longer absorb water.
  • the tub heater After completing the supplying of water, first, the tub heater is turned on to heat the wash water in the tub. In this case, the tub heater can be kept on for a predetermined time, or until the tub temperature reaches a first predetermined temperature.
  • the tub heater is turned off, and the steam heater is turned on to eject steam into the drum. If a predetermined time passes after the steam heater is turned on, steam begins to be generated in the steam generator and is supplied into the drum.
  • the steam heater can be appropriately controlled to supply steam into the drum from a time point when the tub heater is turned off. That is, the steam heater can be turned on before the tub heater is turned off as early as a time in between turning on the steam heater and generating the steam in the steam generator. As a result, the steam heater is turned on before the tub heater is turned off, and steam can be supplied into the drum substantially simultaneously with the tub heater being turned off. In this case, it is important to apply sufficient electric power to simultaneously keep both the steam heater and tub heater on.
  • the above-described controlling of the tub heater and steam heater is applicable to other embodiments of the present invention.
  • the steam heater likewise, can be controlled on the basis of time or temperature. Specifically, the steam heater can be kept on for a predetermined time, or until the tub temperature reaches a second predetermined temperature.
  • the steam heater is turned off, and the tub heater is turned on to heat the wash water in the tub.
  • the tub heater is kept on until the tub temperature reaches a third predetermined temperature.
  • the water in the tub is at the first water level WL 1 .
  • the drum is continuously rotated under the above-described conditions, to continue the washing of laundry for a predetermined time.
  • the circulation pump is kept on to circulate the wash water in the tub except for the initial supplying of water and for a time while the tub heater is kept on.
  • the circulation pump is turned on to circulate the wash water during the initial supplying of water, the wash water can more rapidly permeate the laundry.
  • the circulation of wash water causes a change of the water level in the tub, it can have a disadvantageous effect on the controlling of the water supply valve based on the water level in the tub during the initial supplying of water.
  • the first water level WL 1 is determined to allow a part of laundry to be immersed in the wash water. Therefore, the wash water can sufficiently permeate the laundry even by rotation of the drum without requiring circulation of the wash water.
  • the above-described first embodiment is based on the case where the supplying of water for setting the water level in the tub up to the first water level WL 1 is completed before a heater control operation of controlling the On/Off of the tub heater and steam heater. Specifically, in the first embodiment, the tub heater and steam heater are controlled such that the tub temperature reaches a predetermined temperature after completing the supplying of water for setting the water level in the tub to the predetermined water level.
  • FIG. 3 illustrates a second embodiment of the present invention.
  • the second embodiment is based on the case where water is gradually supplied while the steam heater is kept on.
  • the water supply valve is opened to supply water until the water level in the tub reaches a third water level WL 3 .
  • the water supply valve is again opened to supply wash water until the water level in the tub reaches the third water level WL 3 .
  • the circulation pump is kept on to circulate the wash water in the tub, there is no risk of a rapid decrease in the level of water in the tub.
  • the supplying of water is again implemented. In this case, the supplying of water is continued only until the water level in the tub reaches a lower level than the third water level WL 3 . Then, the circulation pump is turned off. Simultaneously with turning off the circulation pump, the water level in the tub decreases more gently.
  • the tub heater is turned on after the circulation pump is turned off.
  • the tub heater is kept on for a predetermined time or until the tub temperature reaches a predetermined temperature.
  • the tub heater can be turned off when the water level in the tub decreases to a predetermined water level. This is because overheating of the tub heater can occur when the tub heater is exposed above the surface of the water due to the low water level in the tub.
  • the controlling of the tub heater in consideration of the water level in the tub can be used in conjunction with a controlling based on time or tub temperature.
  • the steam heater is turned on to supply steam into the drum.
  • the water supply valve is controlled while the steam heater is kept on, to gradually supply water into the tub.
  • the water supply valve is controlled so as to be repeatedly turned on or off. With such a repetitive On/Off controlling of the water supply valve, the water level rises stepwise as shown in FIG. 3 .
  • the above-described gradual supplying of water is implemented to allow the water level in the tub to gradually reach the third water level WL 3 for the predetermined time. It is unnecessary to coincide the time of keeping the steam heater on with the implementation time of the gradual supplying of water, and they can be approximately matched with each other.
  • the tub heater is turned on. Then, if the tub temperature reaches the predetermined temperature, the tub heater is turned off.
  • the steam heater is turned off precisely when the water level in the tub reaches the third water level WL 3 .
  • the tub heater is turned on and kept on.
  • a time point when the steam heater is turned off can accord or disaccord with a time point when the tub heater is turned on. If the water level in the tub is kept at the third water level WL 3 rather than further dropping, there is substantially no time in between turning off the steam heater and turning on the tub heater.
  • the tub heater can be turned off at a time point when the steam heater is turned off, regardless of the water level, because the water level in the tub is in the vicinity of the third water level WL 3 . This is likewise in other similar embodiments.
  • the circulation pump is kept off while the tub heater is kept on. Also, the drum is rotated continuously.
  • the drum is rotated for a predetermined time, to continuously implement washing of laundry.
  • the above-described second embodiment is based on the case where the water is gradually supplied while the steam heater is kept on after completing the initial supplying of water, and also, is based on the case where the supplying of water up to the predetermined third water level WL 3 is completed approximately at a time point when the steam heater is turned off. After completing the supplying of water up to the third water level WL 3 , the tub heater is turned on.
  • FIG. 4 illustrates another example of the second embodiment.
  • the tub heater is not turned on after the initial supplying of water and before the steam heater is turned on.
  • the water level in the tub during the initial supplying of water is higher than a following predetermined water level (In FIG. 4 , a fifth water level WL 5 is higher than a sixth water level WL 6 ).
  • the initial supplying of water in FIG. 4 is more rapidly implemented than that in FIG. 3 .
  • the circulation pump is kept on, and the drum is rotated to allow the wash water to more rapidly permeate the laundry.
  • the water supply valve is controlled so as to be repeatedly turned on or off, causing the water level in the tub to rise gradually.
  • the tub heater is turned on and kept on.
  • the tub heater is turned off.
  • the steam heater is turned off precisely when the water level in the tub reaches the sixth water level WL 6 .
  • the tub heater is turned on precisely when the water level in the tub is kept at the sixth water level WL 6 by an additional supplying of water.
  • the circulation pump is paused for a time period after the steam heater is turned off and before the tub heater is turned on. This is because it is necessary to pause the circulation pump for the sake of accurate controlling of the water level.
  • the water level in the tub is kept at the sixth water level WL 6 rather than further decreasing, there can be substantially no time in between turning off the steam heater and turning on the tub heater.
  • FIG. 5 illustrates a third embodiment of the present invention.
  • the supplying of water includes an initial supplying of water and a final supplying of water.
  • the final supplying of water is implemented at a conversion time point from a steam heater turn-on mode to a tub heater turn-on mode.
  • the water level in the tub rises to the predetermined water level by an additional supplying of water.
  • the initial supplying of water is implemented such that the water level in the tub reaches an eighth water level WL 8 .
  • an intermediate supplying of water is implemented.
  • the intermediate supplying of water maintains the water level in the tub within a predetermined water level range.
  • the intermediate supplying of water is implemented in such a manner that the water level in the tub is maintained between a ninth water level WL 9 and a tenth water level WL 10 .
  • the final supplying of water is implemented to set the water level in the tub to the ninth water level WL 9 . If the water level in the tub is set to the ninth water level WL 9 , the tub heater is turned on and kept on. Likewise, if the tub temperature reaches the predetermined temperature, the tub heater is turned off.
  • the eighth water level WL 8 is higher than the ninth water level WL 9 .
  • the steam heater is turned on and kept on from the beginning time point of the initial supplying of water.
  • the steam heater can be turned on and kept on after the initial supplying of water.
  • the intermediate supplying of water is implemented to maintain the water level in the tub within the predetermined range after the initial supplying of water, and the final supplying of water is implemented after the steam heater is turned off.
  • FIG. 6 illustrates another example of the above-described third embodiment.
  • the water level in the tub reaches an eleventh water level WL 11 .
  • the intermediate supplying of water is implemented to maintain the water level in the tub between a twelfth water level WL 12 and a thirteenth water level WL 13 .
  • the steam heater is turned on and kept on after the initial supplying of water.
  • the water supply valve is opened, causing the water level in the tub to reach the twelfth water level WL 12 (in the final supplying of water). Then, the tub heater is turned on and kept on until the tub temperature reaches the predetermined temperature.
  • the final supplying of water can be implemented as the water supply valve is controlled so as to be repeatedly turned on or off.
  • the water level in the tub can reach the twelfth water level WL12 in a stepwise manner.
  • the present invention provides a laundry machine to wash laundry, more particularly, a laundry machine having a steam generator to supply steam to the laundry.
  • a tub heater and a steam heater can be used together, in conjunction with a controlling of a water supply valve. This is advantageous to improve energy efficiency of the laundry machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (18)

  1. Procédé de commande pour une machine à laver, le procédé de commande comprenant les étapes consistant à :
    alimenter de l'eau dans une cuve (56) jusqu'à ce qu'un niveau d'eau dans la cuve (56) atteigne un niveau d'eau prédéterminé pour une étape de lavage ; et
    commander un dispositif de chauffage de vapeur et un dispositif de chauffage de cuve (40) jusqu'à ce que la température à l'intérieur de la cuve (56) atteigne une température prédéterminée pour l'étape de lavage au niveau d'eau prédéterminé,
    caractérisé en ce que l'on maintient une pompe de circulation (80) à l'arrêt pendant que le dispositif de chauffage de cuve (40) est en marche.
  2. Procédé de commande selon la revendication 1, comprenant en outre, après que la température a atteint la température prédéterminée, l'étape consistant à mettre un tambour (58) en rotation dans la cuve (56) pour continuer l'étape de lavage.
  3. Procédé de commande selon la revendication 1, dans lequel l'alimentation d'eau se termine avant le commencement de la commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40).
  4. Procédé de commande selon la revendication 3, dans lequel la commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) comprend le maintien du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) en marche alternativement pendant des périodes temporelles respectives préétablies.
  5. Procédé de commande selon la revendication 4, dans lequel la commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) comprend en séquence les étapes consistant à :
    maintenir le dispositif de chauffage de cuve (40) en marche pendant une période temporelle préétablie ;
    maintenir le dispositif de chauffage de vapeur en marche pendant une période temporelle préétablie ; et
    maintenir le dispositif de chauffage de cuve (40) en marche pendant une période temporelle préétablie.
  6. Procédé de commande selon la revendication 1, dans lequel l'alimentation d'eau comprend d'alimenter l'eau progressivement pendant que le dispositif de chauffage de vapeur est en marche.
  7. Procédé de commande selon la revendication 6, dans lequel l'alimentation progressive d'eau se termine quand le niveau d'eau de la cuve (56) atteint le niveau d'eau prédéterminé.
  8. Procédé de commande selon la revendication 7, dans lequel la commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) comprend le maintien du dispositif de chauffage de cuve (40) en marche après la fin de l'alimentation progressive d'eau.
  9. Procédé de commande selon la revendication 6, dans lequel l'alimentation d'eau comprend en outre :
    l'alimentation initiale de l'eau pour faire monter le niveau d'eau de la cuve (56) jusqu'au niveau d'eau prédéterminé ou plus haut, pendant une ouverture d'une valve d'alimentation d'eau (62a).
  10. Procédé de commande selon la revendication 9, dans lequel la commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) comprend le maintien du dispositif de chauffage de cuve (40) en marche entre l'alimentation initiale d'eau et l'alimentation progressive d'eau.
  11. Procédé de commande selon la revendication 1, dans lequel l'alimentation d'eau comprend :
    l'alimentation initiale d'eau ; et
    l'alimentation finale d'eau jusqu'au niveau d'eau prédéterminée pendant que l'on met en marche le dispositif de chauffage de vapeur et que l'on met en marche le dispositif de chauffage de cuve (40) ou pendant des périodes intermédiaires.
  12. Procédé de commande selon la revendication 11, dans lequel la commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) se termine lorsqu'on arrête le dispositif de chauffage de cuve (40).
  13. Procédé de commande selon la revendication 12, dans lequel l'alimentation d'eau comprend en outre d'alimenter de l'eau de façon intermédiaire pour maintenir le niveau d'eau de la cuve (56) dans une plage de niveau d'eau prédéterminée.
  14. Procédé de commande selon la revendication 13, dans lequel l'alimentation intermédiaire de l'eau comprend d'alimenter de l'eau plus de deux fois.
  15. Procédé de commande selon la revendication 13, dans lequel l'alimentation initiale de l'eau comprend l'alimentation de l'eau pour faire monter le niveau d'eau de la cuve (56) jusqu'au niveau d'eau prédéterminée, ou plus haut, pendant une ouverture d'une valve d'alimentation d'eau (62a).
  16. Procédé de commande selon la revendication 13, dans lequel une limite supérieure de la plage de niveau d'eau prédéterminé est la même que le niveau d'eau prédéterminé.
  17. Procédé de commande selon la revendication 1, dans lequel le commande du dispositif de chauffage de vapeur et du dispositif de chauffage de cuve (40) se termine lors du maintien en marche et de la mise à l'arrêt du dispositif de chauffage de cuve (40).
  18. Machine à laver comprenant :
    une cuve (56) pour contenir de l'eau pour le lavage ;
    une valve d'alimentation d'eau (62a) pour ouvrir et fermer un conduit d'eau vers la cuve (56) ;
    un dispositif de chauffage de cuve (40) monté dans la cuve (56) pour chauffer l'eau ;
    une pompe de circulation (80) pour pomper l'eau dans la cuve (56) vers le haut pour mettre l'eau en circulation ;
    un générateur de vapeur (70) pour générer de la vapeur en chauffant l'eau avec un dispositif de chauffage de vapeur ; et
    un contrôleur pour commander la valve d'alimentation d'eau (62a), le dispositif de chauffage de cuve (40), et le dispositif de chauffage de vapeur pour une étape de lavage, de manière à amener une température à l'intérieur de la cuve (56) à atteindre une température prédéterminée à un niveau d'eau prédéterminé pour l'étape de lavage,
    caractérisé en ce que le contrôleur est adapté à commander la pompe de circulation (80) pour la maintenir à l'arrêt pendant que le dispositif de chauffage de cuve (40) est en marche.
EP08009955.9A 2007-08-16 2008-05-30 Procédé de contrôle d'une machine à laver Active EP2025795B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070082260A KR100934665B1 (ko) 2007-08-16 2007-08-16 세탁장치의 제어방법

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EP2025795A2 EP2025795A2 (fr) 2009-02-18
EP2025795A3 EP2025795A3 (fr) 2014-04-30
EP2025795B1 true EP2025795B1 (fr) 2017-03-15

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2503044B1 (fr) * 2011-03-24 2013-12-11 Electrolux Home Products Corporation N.V. Procédé pour réaliser un cycle de lavage de linge délicat dans une machine à laver le linge ou à sécher le linge
KR20130079925A (ko) * 2012-01-03 2013-07-11 엘지전자 주식회사 세탁물 처리장치
WO2017211412A1 (fr) * 2016-06-08 2017-12-14 Arcelik Anonim Sirketi Lave-linge à efficacité de nettoyage améliorée et à rendement énergétique amélioré
KR102598167B1 (ko) 2016-12-23 2023-11-06 삼성전자주식회사 세탁기 및 그 제어방법
US12180634B2 (en) 2018-02-22 2024-12-31 Lg Electronics Inc. Washing apparatus and method for controlling same
KR20200042820A (ko) 2018-10-16 2020-04-24 엘지전자 주식회사 세탁장치 및 이의 제어방법
CN114645430A (zh) * 2020-12-21 2022-06-21 无锡小天鹅电器有限公司 衣物处理设备及其控制方法和存储介质

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Publication number Priority date Publication date Assignee Title
JP4784029B2 (ja) * 2001-09-21 2011-09-28 パナソニック株式会社 洗濯機
KR100565251B1 (ko) * 2004-07-19 2006-03-30 엘지전자 주식회사 드럼세탁기의 절수세탁방법
KR100698304B1 (ko) * 2005-03-22 2007-03-23 엘지전자 주식회사 드럼 세탁기의 세척조 세정 방법
KR101113870B1 (ko) * 2005-08-19 2012-02-29 엘지전자 주식회사 증기 분사식 세탁기의 행정 제어방법
EP1861533B1 (fr) * 2005-03-25 2014-11-26 LG Electronics Inc. Procede de lavage d'une machine a laver
KR100686031B1 (ko) * 2005-03-25 2007-02-22 엘지전자 주식회사 증기분사식 드럼세탁기의 세탁방법
KR101147822B1 (ko) * 2005-12-06 2012-05-21 엘지전자 주식회사 세탁기의 화재방지 제어방법
KR101263318B1 (ko) * 2006-12-20 2013-05-15 동부대우전자 주식회사 과열방지장치 및 이를 구비하는 드럼세탁기

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KR20090017804A (ko) 2009-02-19
EP2025795A2 (fr) 2009-02-18
EP2025795A3 (fr) 2014-04-30
KR100934665B1 (ko) 2009-12-31

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