EP0837173B1 - Procédé pour commander le rinçage dans une machine à laver - Google Patents

Procédé pour commander le rinçage dans une machine à laver Download PDF

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Publication number
EP0837173B1
EP0837173B1 EP97117305A EP97117305A EP0837173B1 EP 0837173 B1 EP0837173 B1 EP 0837173B1 EP 97117305 A EP97117305 A EP 97117305A EP 97117305 A EP97117305 A EP 97117305A EP 0837173 B1 EP0837173 B1 EP 0837173B1
Authority
EP
European Patent Office
Prior art keywords
water
drum
laundry
rinsing
pressure
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.)
Expired - Lifetime
Application number
EP97117305A
Other languages
German (de)
English (en)
Other versions
EP0837173A1 (fr
Inventor
Harald Steinmüller
Jürgen Werner
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG Hausgeraete GmbH
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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0837173A1 publication Critical patent/EP0837173A1/fr
Application granted granted Critical
Publication of EP0837173B1 publication Critical patent/EP0837173B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • 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
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
    • 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

Definitions

  • the invention relates to a method for controlling the Rinsing process comprising at least one rinse cycle controlled by a control device Washing machine, being in a rotating drum washed laundry washed with a bound liquor becomes.
  • Such a rinsing method in which the washing result is achieved only by means of the bound liquor, that is to say the water which can be absorbed by the laundry, is known, for example, from DE 34 01 899 C2.
  • the rinsing success and the uniformity of a rinse cycle depend crucially on the fact that as much as possible the entire intended amount of rinsing water is absorbed evenly by the laundry, i.e. that all laundry parts are wetted and soaked largely homogeneously, so that Fresh water everywhere Rinsing effect can fill. Since little water is used with such a device, even less water absorption or wetting defects lead to a somewhat inferior washing result.
  • EP 0 644290 A1 describes a method for rinsing and Spin the laundry suggested that the Rinsing process in several, each through a spin phase finished rinse cycles is divided and before each Spin phase a laundry redistribution takes place. To this According to scripture, better penetration of the Wash reached with the rinse water, however, the degree the penetration and thus the success of the measure in Procedure is not checked.
  • DE 195 05 414 A1 relates to a method for detecting a fault in the water supply a washing machine. For this purpose, the water level in the Detergent container of the washing machine or the change in water level over time during water intake. If an error is found, the program can be aborted be initiated.
  • the invention is therefore based on the problem Specify the method of the type mentioned, with which it it is possible to recognize such sources of error and 'at To be able to react accordingly, to achieve an improved washing result.
  • the proposed method intermittently or continuously at the water level or measured value corresponding to its temporal course determined so that a measure of the existing on the swamp side Water is given. Gathers as a result of a given Source of error there is more water than permitted or than in Corresponding measured values are given in the normal case determines the existence of an error within the scope of Comparison with the predetermined comparison values with Show special advantage, so that subsequently in the frame a corresponding control can be reacted to and advantageously a correspondingly improved one Flushing operation is adjustable.
  • Basis of the invention also be provided that in the frame a control based on measured values first of all Rinse water supply stopped and then another Rinse cycle is initiated. It is therefore according to the invention possible, if due to measured values or due to a corresponding comparison result in the "normal" Control must be intervened, the rinse water inlet is stopped because another feeding fresh Rinsing water does not improve the washing result leads, because a large part ends up unused in the swamp. Rather, in this case it is appropriate to Abort the current rinse cycle and then one to initiate another, new rinse cycle.
  • the Drum washing machine is equipped with a drum rotatably arranged in a drum container, in the water can be added to rinse the laundry is provided at the bottom of the drum container, the Recording of water flowing out of the drum Swamp, and one that controls the flushing operation Provide control device. It stands out characterized in that a device for Determination of the water level in the swamp during the Flushing process and / or its course over time corresponding measured values are provided, and that one with the device communicating evaluation device for Compare the, if necessary, arithmetically processed, Measured values with predetermined comparison values are provided, the control of the flushing operation depending on the Comparative result.
  • the drum washing machine stands out So by a suitable measuring device for determining water level-specific measured values and one of these assigned evaluation device in which the for the following control basic comparison is carried out, the evaluation device naturally communicating with the control device accordingly is connected so that when an error is detected as a result according to comparison results obtained appropriate control intervention is possible.
  • the device has one with the inside of the drum container communicating pressure sensor for Determining the water level-related as a measured value Pressure inside the drum container, one preferred embodiment provides that the pressure sensor on an air trap branching off the drum container is arranged so that only the above that in the Airfalls standing water level prevailing pressure measured is, here any of a change in the Pressure changes resulting from water levels are particularly simple and are safe to grasp.
  • the evaluation device can Processor, in particular having a fuzzy processor, and of course a conventional processor with look-up tables or other data processing options, a sufficient processing of the measured values or a sufficiently meaningful comparison of the same with im Enable processor stored comparison values, useful are.
  • a correspondingly effective intervention on the control side to enable the Counteracting identified errors can be based on the Invention may also be provided that the Control device for interrupting the water supply and / or switching on a further rinse cycle is, preferably also on the part of the control device a laundry distribution step can be switched between two rinse cycles can be.
  • the Evaluation device integrated in the control device is there already in the control device appropriate memory or processor means are provided are then active in the evaluation facility can be.
  • Fig. 1 shows a section of a drum washing machine a drum container 1 in which a rotatable drum 2 is arranged, in which in turn the laundry to be washed 3 is located.
  • an inlet 4 for via one with an inlet valve 5 in its flow changeable supply line 6 sprayable rinse water provided, which after spraying into the interior of the Drum 2 arrives, and wets the laundry there.
  • base side on the drum 1 a sump 7 is provided, one of which is not Pump shown is connected downstream.
  • this swamp 7 collects from the drum 2 by appropriate Breakthroughs draining water.
  • the swamp area 7 branches off an air trap 8, at the end of which a pressure sensor 9 is arranged.
  • Fig. 2 shows in the form of a diagram the pressure curve over time for a control and an error case.
  • the time t is plotted along the abscissa
  • the pressure value measured by means of the pressure sensor is plotted along the ordinate.
  • Shown is a curve A, which corresponds to a normal, regular rinsing process.
  • Curve B corresponds to the fault case.
  • the measurable pressure rise which corresponds to the accumulation of rinsing water in the sump, begins at a time t 1 .
  • the pressure rises continuously with time and approaches the stationary value towards the end of the water supply.
  • the pressure value corresponding to the water level is always below the pressure value shown as a dash-dotted line in FIG. 2, which corresponds to the water level which extends straight to the lower edge of the drum.
  • the invention relates to a method for controlling the Rinsing process comprising at least one rinse cycle controlled by a control device Washing machine, being in a rotating drum washed laundry washed with a bound liquor becomes.
  • Such a rinsing method in which the washing result is achieved only by means of the bound liquor, that is to say the water which can be absorbed by the laundry, is known, for example, from DE 34 01 899 C2.
  • the rinsing success and the uniformity of a rinse cycle depend crucially on the fact that the entire intended amount of rinsing water is absorbed evenly by the laundry, i.e. that all laundry parts are largely homogeneously wetted and soaked so that the fresh water everywhere his or her Rinsing effect can fill. Since so little water is used, even less water absorption or wetting defects lead to somewhat inferior washing results.
  • EP 0 644290 A1 describes a method for rinsing and Spin the laundry proposed, in which the Rinsing process in several, each through a spin phase finished rinse cycles is divided and before each Spin phase a laundry redistribution takes place. To this According to scripture, better penetration of the Wash reached with the rinse water, however, the degree the penetration and thus the success of the measure in Procedure is not checked.
  • a washing machine is described in EP 0 778 367 A1 (Article 54 (3) EPC document) described in which the rinsing with bound liquor takes place and that is below the drum Water that collects is partially pumped for renewed use Use when rinsing is returned to the drum.
  • a pressure measurement in one from the bottom of the Washing machine container branching air trap of the respective water level in the tank determined. Using of the measured values obtained is indicated by a corresponding Actuation of the valve in the feed line in particular ensures that on the one hand always sufficient Amount of water is available for the rinsing process, however on the other hand, the water level in the tank's bottom edge does not exceed the drum.
  • the writing is one about regulating the amount of water supplied beyond influencing the rinsing process remove.
  • the measures are not related for a targeted review of the degree of penetration of the Wash with water.
  • DE 195 05 414 A1 relates to a method for detecting a fault in the water supply a washing machine. For this purpose, the water level in the Detergent container of the washing machine or the change in water level over time during water intake. If an error is found, the program can be aborted be initiated.
  • the invention is therefore based on the problem of specifying a method of the type mentioned at the outset with which it is possible to recognize sources of error with regard to the washing result and to be able to react accordingly when such occurs in order to be able to achieve an improved washing result.
  • the proposed method intermittently or continuously at the water level or measured value corresponding to its temporal course determined so that a measure of the existing on the swamp side Water is given. Gathers as a result of a given Source of error there is more water than permitted or than in Corresponding measured values are given in the normal case determines the existence of an error within the scope of Comparison with the predetermined comparison values with Show special advantage, so that subsequently in the frame a corresponding control can be reacted to and advantageously a correspondingly improved one Flushing operation is adjustable.
  • Basis of the invention also be provided that in the frame a control based on measured values first of all Rinse water supply stopped and then another Rinse cycle is initiated. It is therefore according to the invention possible, if due to measured values or due to a corresponding comparison result in the "normal" Control must be intervened, the rinse water inlet is stopped because another feeding fresh Rinsing water does not improve the washing result leads, because a large part ends up unused in the swamp. Rather, in this case it is appropriate to Abort the current rinse cycle and then one to initiate another, new rinse cycle.
  • the Drum washing machine is equipped with a drum rotatably arranged in a drum container, in the water can be added to rinse the laundry is provided at the bottom of the drum container, the Recording of water flowing out of the drum Swamp, and one that controls the flushing operation Provide control device. It stands out characterized in that a device for Determination of the water level in the swamp during the Flushing process and / or its course over time corresponding measured values are provided, and that one with the device communicating evaluation device for Compare the, if necessary, arithmetically processed, Measured values with predetermined comparison values are provided, the control of the flushing operation depending on the Comparative result.
  • the drum washing machine stands out So by a suitable measuring device for determining water level-specific measured values and one of these assigned evaluation device in which the for the following control basic comparison is carried out, the evaluation device naturally communicating with the control device accordingly is connected so that when an error is detected as a result according to comparison results obtained appropriate control intervention is possible.
  • the device has one with the inside of the drum container communicating pressure sensor for Determining the water level-related as a measured value Pressure inside the drum container, one preferred embodiment provides that the pressure sensor on an air trap branching off the drum container is arranged so that only the above that in the Air trap standing water level prevailing pressure measured is, here any of a change in the Pressure changes resulting from water levels are particularly simple and are safe to grasp.
  • the evaluation device can Processor, in particular having a fuzzy processor, and of course a conventional processor with look-up tables or other data processing options, a sufficient processing of the measured values or a sufficiently meaningful comparison of the same with. im Enable processor stored comparison values, useful are.
  • a correspondingly effective intervention on the control side to enable the Counteracting identified errors can be based on the Invention may also be provided that the Control device for interrupting the water supply and / or switching on a further rinse cycle is, preferably also on the part of the control device a laundry distribution step can be switched between two rinse cycles can be.
  • the Evaluation device integrated in the control device 'is already there in the control device appropriate memory or processor means are provided are then active in the evaluation facility can be.
  • Fig. 1 shows a section of a drum washing machine a drum container 1 in which a rotatable drum 2 is arranged, in which in turn the laundry to be washed 3 is located.
  • an inlet 4 for via one with an inlet valve 5 in its flow changeable supply line 6 sprayable rinse water provided, which after spraying into the interior of the Drum 2 arrives, and wets the laundry there.
  • base side on the drum 1 a sump 7 is provided, one of which is not Pump shown is connected downstream.
  • this swamp 7 collects from the drum 2 by appropriate Breakthroughs draining water.
  • the swamp area 7 branches off an air trap 8, at the end of which a pressure sensor 9 is arranged.
  • Fig. 2 shows in the form of a diagram the pressure curve over time for a control and an error case.
  • the time t is plotted along the abscissa
  • the pressure value measured by means of the pressure sensor is plotted along the ordinate.
  • Shown is a curve A, which corresponds to a normal, regular rinsing process.
  • Curve B corresponds to the fault case.
  • the measurable pressure rise which corresponds to the accumulation of rinsing water in the sump, begins at a time t 1 .
  • the pressure rises continuously with time and approaches the stationary value towards the end of the water supply.
  • the pressure value corresponding to the water level is always below the pressure value shown as a dash-dotted line in FIG. 2, which corresponds to the water level which extends straight to the lower edge of the drum.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (5)

  1. Procédé de commande de l'opération de rinçage, comprenant au moins une opération de rinçage, une machine à laver commandée au moyen d'une installation de commande, où le linge reçu dans un tambour tournant est rincé avec un bain lié, et où pendant l'opération de rinçage, les valeurs de mesure correspondant au niveau d'eau dans une zone en dessous du tambour et/ou à son déroulement dans le temps sont déterminées qui sont comparées le cas échéant après un traitement par calculateur de celles-ci avec des valeurs de comparaison prédéfinies, caractérisé en ce que la commande du déroulement ultérieur de l'opération de rinçage a lieu en vue d'un mouillage et trempage homogène du linge avec l'eau fraíche amenée au début d'une opération de rinçage en fonction du résultat de la comparaison de telle manière que dans le cas d'une montée prématurée du niveau d'eau pendant l'amenée de l'eau de rinçage ou du dépassement d'un niveau d'eau prédéfini, l'amenée d'eau de rinçage est arrêté et une autre opération de rinçage est mise en marche.
  2. Procédé selon la revendication 1, caractérisé en ce que comme valeur de mesure, la valeur de pression régnant dans cette zone, dépendant du niveau d'eau, est déterminée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'avant le début de l'opération de rinçage supplémentaire, au moins une opération de répartition de linge est sélectionnée.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'installation de commande présente une installation d'évaluation (10) avec un processeur de logique flou.
EP97117305A 1996-10-09 1997-10-07 Procédé pour commander le rinçage dans une machine à laver Expired - Lifetime EP0837173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19641477A DE19641477B4 (de) 1996-10-09 1996-10-09 Verfahren zur Steuerung des Spülvorgangs einer Waschmaschine
DE19641477 1996-10-09

Publications (2)

Publication Number Publication Date
EP0837173A1 EP0837173A1 (fr) 1998-04-22
EP0837173B1 true EP0837173B1 (fr) 2003-01-02

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EP97117305A Expired - Lifetime EP0837173B1 (fr) 1996-10-09 1997-10-07 Procédé pour commander le rinçage dans une machine à laver

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EP (1) EP0837173B1 (fr)
DE (2) DE19641477B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641477B4 (de) * 1996-10-09 2005-10-20 Aeg Hausgeraete Gmbh Verfahren zur Steuerung des Spülvorgangs einer Waschmaschine
DE102004039662A1 (de) * 2004-08-16 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Programmgesteuerte Waschmaschine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2789568B1 (fr) * 1999-02-16 2001-05-04 Esswein Sa Procede d'optimisation du cycle de fonctionnement d'un appareil electromenager lavant et appareil utilisant ce procede
DE102009002622B4 (de) * 2009-04-24 2016-01-14 BSH Hausgeräte GmbH Verfahren zur Durchführung einer Spülphase in einer Trommelwaschmaschine
CN112522910B (zh) * 2019-08-30 2024-02-20 重庆海尔滚筒洗衣机有限公司 一种洗衣机的异常检测方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401899A1 (de) * 1984-01-20 1985-07-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Trommelwaschmaschine fuer den haushalt
DE3804625A1 (de) * 1988-02-13 1989-08-24 Bauknecht Hausgeraete Verfahren zum spuelen von waesche
DE4331632C2 (de) * 1993-09-17 2003-06-26 Aeg Hausgeraete Gmbh Verfahren zum Spülen und Schleudern von Wäsche in einer programmgesteuerten Waschmaschine
DE19505414C2 (de) * 1995-02-17 1998-08-27 Miele & Cie Verfahren zur Erkennung eines Fehlers im Wasserzulauf bzw. Wasserablauf einer programmgesteuerten Wasch- oder Geschirrspülmaschine
DE19641477B4 (de) * 1996-10-09 2005-10-20 Aeg Hausgeraete Gmbh Verfahren zur Steuerung des Spülvorgangs einer Waschmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641477B4 (de) * 1996-10-09 2005-10-20 Aeg Hausgeraete Gmbh Verfahren zur Steuerung des Spülvorgangs einer Waschmaschine
DE102004039662A1 (de) * 2004-08-16 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Programmgesteuerte Waschmaschine

Also Published As

Publication number Publication date
EP0837173A1 (fr) 1998-04-22
DE59709050D1 (de) 2003-02-06
DE19641477A1 (de) 1998-04-16
DE19641477B4 (de) 2005-10-20

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