EP1786971B1 - Procede pour faire fonctionner un lave-linge - Google Patents

Procede pour faire fonctionner un lave-linge Download PDF

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Publication number
EP1786971B1
EP1786971B1 EP05777385A EP05777385A EP1786971B1 EP 1786971 B1 EP1786971 B1 EP 1786971B1 EP 05777385 A EP05777385 A EP 05777385A EP 05777385 A EP05777385 A EP 05777385A EP 1786971 B1 EP1786971 B1 EP 1786971B1
Authority
EP
European Patent Office
Prior art keywords
value
washing machine
operating
washing
values
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
EP05777385A
Other languages
German (de)
English (en)
Other versions
EP1786971A1 (fr
Inventor
Andreas BEXTERMÖLLER
Dirk Dahlke
Volker Karweg
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to PL05777385T priority Critical patent/PL1786971T3/pl
Publication of EP1786971A1 publication Critical patent/EP1786971A1/fr
Application granted granted Critical
Publication of EP1786971B1 publication Critical patent/EP1786971B1/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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • D06F2105/60—Audible signals

Definitions

  • the invention relates to a method for operating a washing machine, in particular a method for a program-controlled washing machine with a housing, a washing unit arranged in a swinging manner in the housing, which essentially contains a container for holding laundry and / or washing liquid, and an operating unit and control unit, wherein the control unit includes at least one evaluation unit and a memory, and a sensor for detecting the weight of the container.
  • a waxing machine which has a vibrating washing unit and for measuring the weight comprises a force sensor or a pressure sensor on one of the suspensions for the washing unit.
  • the control unit or the means for detection are activated, which is usually provided by switching on the washing machine, before the laundry is thrown into the washing drum.
  • the laundry weight can no longer be detected automatically because the rest position of the washing drum or washing unit or container is not known.
  • German Offenlegungsschrift DE 102 36 937 A1 discloses a possibility for autonomous activation or activation of the operating unit for a washing machine.
  • the operating unit is activated with an integrated motion detector.
  • the display elements or control unit located in the operating unit are only activated or switched on as soon as a person is in the local area covered by the motion detector.
  • the use of a motion detector is very complex and sensitive to unwanted switching.
  • the invention is thus based on the object, on the one hand to provide a reliable and accurate detection of the laundry weight or the container with loading taking into account different user habits and on the other hand to allow detection of disturbances before the program is started.
  • the achievable with the invention advantages are in addition to a very reliable and accurate detection of the laundry weight under detection and consideration of faults, including the reliable activation of the control unit and / or control unit.
  • a disturbance is exemplified the restoring behavior of friction-acting shock absorbers. Due to the friction behavior, the unit to be measured acquires a slightly different position with each return, as soon as the braking effect of the friction-effecting shock absorber outweighs the restoring force of the springs for the swinging suspension of the washing unit.
  • Another disturbance is an inadmissible water ingress into the container, for example tubs.
  • the rest position of the washing and / or washing liquid receiving container or washing unit is detected reliably and each timely before each wash.
  • a control unit with an evaluation unit and a memory and a sensor for detecting the weight are arranged in the washing machine.
  • the values detected by the sensor are read in cyclically, whereby the last read-in value is stored.
  • the evaluation unit is able to compare an imported value with the last read value or several values. As long as the read-in values do not change, or fall below a specified tolerance level, the rest position or zero position of the container, as a rule washing aggregate, is determined. As soon as a read-in value exceeds the predetermined tolerance value for a value change, the control unit is activated.
  • a displacement sensor is used to detect the weight, which is usually arranged between the washing unit and the housing.
  • the detection of the laundry weight may also be provided by other methods, such as pressure measurement or warp measurement.
  • the temporal behavior of a plurality of stored values is used for the assessment.
  • the displacement sensor is read at least once again, whereby this value read in under load is subtracted from the value for the rest position detected in the sleep mode and the result from this calculation is weighted for the Laundry is used.
  • waiting times are conceivable between the individual cycles for detecting the sensor values, or a plausibility check is carried out on the basis of a plurality of values recorded one after the other. This means, for example, that a constant value is accepted and stored as a resting position only after several time-sequential acquisitions.
  • the inventive method is suitable for all washing machines with a swinging suspended washing unit, especially tub with a rotating therein washing drum and its drive components or a tub with an agitator and its drive components or a water-carrying rotating drum with drive components arranged therein.
  • the determined or assumed rest position may be due to the restoring behavior of the friction damper in a limited tolerance window.
  • the determination of the rest position takes place in the time in which the operating unit and control unit is inactive, that is, all controls are inactive and the displays, such as lights or displays are off.
  • the control unit is inactive during this time, hereinafter referred to as sleep mode, with the exception of the cyclic detection and storage of the values from the displacement sensor.
  • This sleep mode is particularly energy-efficient, since only a part of the control unit or evaluation is active.
  • errors can be detected with the aid of the cyclical detection of the weight of the container or washing unit, in particular an inadmissible water inlet in sleep mode, ie while the washing machine is switched off or the control unit and operating unit is inactive.
  • This takes into account the dynamic behavior of the values read in by the sensor. If the change of a read-in value from the previously stored value falls below a predetermined level, this is regarded as a slow increase in weight which results from an impermissible water intake.
  • the evaluation unit detects an error and activates an alarm function.
  • alarm function expediently alarm indications, audible alarm messages or alarm messages via communication devices such as the Internet, mobile phone and / or switching on the lye drain pump are conceivable.
  • the washing unit 2 is suspended by springs 3 on the housing 1 and not shown in detail on the supporting parts of the housing swinging.
  • the washing unit essentially comprises a tub with a washing drum rotatably arranged in the tub and the drive unit, for example a motor with belt drive.
  • the shock absorbers 4 serve to avoid vibrations in case of imbalance of the rotating drum.
  • a displacement sensor 6 in addition to the detection of an imbalance, and the loading state of the drum is detected.
  • the evaluation of all values output or read out by the travel sensor 6 is preferably carried out in a control unit 5 arranged in the washing machine 29, the control unit 5 including at least one evaluation unit and a memory. This in Fig.
  • the control unit 5 includes an evaluation unit, which reads in each value of the displacement sensor 6 via the signal connection 7 and interprets the change of a value corresponding to a change in weight of the washing unit 2, as a laundry weight.
  • the evaluation unit underlies the dynamic behavior of the weight change, wherein a function is the independent activation of the washing machine 29 or control unit 5.
  • the control unit 2 If there is no state change, as long as the detected value s (t) does not differ from one or more detected values s (tn) that are past in time or falls below a predetermined tolerance limit 18, the control unit 2 remains in the sleep mode 9. As in the state diagram according to Fig. 2 Furthermore, the control unit 2 is switched from the sleep mode 9 to the active mode 10 as a function of the values s (t), 14 output by the distance sensor 6, in particular if a currently detected value s (t) of one or more times past detected values s (tn) is greater than a predetermined tolerance limit or corresponds to a higher weight of the washing unit 2, there is thus a state change 11.
  • the control unit with display elements turned on and the control unit 5 in the readiness to record operator inputs.
  • the energy consumption of the entire washing machine is well below a specified threshold for a relevant energy consumption in the specified sleep mode, also commonly referred to as "stand-by".
  • the state transition 13 from the active mode 10 in the sleep mode 9 can take place.
  • Fig. 3a is exemplified over time the dynamic behavior of a laundry throw and the resulting state change shown.
  • the value of the displacement sensor 6 is cyclically read out in time intervals.
  • the readout times of the displacement sensor are given by way of example on the time axis t unweighted with 1 to 15.
  • the read low value 15 remains unchanged until time 10.
  • This read-in value 15 is preferably stored in a memory within the control unit 5 as a reference for the rest position 15 or zero position of the washing unit.
  • the read value exceeds a predetermined tolerance 18, whereby the evaluation unit in the control unit 5 detects a laundry drop at state 16 and the control unit 5 and control unit, as shown with the transitional arrow 19, from the sleep mode 9 in the active mode 10th on.
  • this value 17 is assumed for determining the weight of the laundry, the determination of the weight of the laundry being based on this value 17 minus the previously determined value for the rest position 15 of the washing unit 2.
  • Fig. 3b a further possibility is shown how the evaluation unit with the aid of the cyclical detection of the value of a displacement sensor 6 can detect an inadmissible water entry into the washing unit in order to then activate an alarm function 26.
  • An impermissible ingress of water would lead to a slow increase in weight of the tub and thus of the washing unit 2. This would lead to changes in value over time, with each detected individual value change falling below a predetermined level 28.
  • the evaluation unit only detects an error when the detected value change falls below a predetermined level 28 and the last detected value exceeds a predetermined absolute threshold value 20. At the times 1 and 2, no change 20 of the read in and / or stored values 15 is detected.

Landscapes

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

Claims (6)

  1. Procédé de fonctionnement d'une machine à laver (29) avec un carter (1), un groupe de lavage (2) qui est disposé de façon mobile en vibration dans le carter (1) et qui contient une cuve pour recevoir du linge et/ou du liquide de lavage, ainsi qu'avec une unité de manoeuvre et unité de commande (5), l'unité de commande (5) contenant au moins une unité d'analyse et une mémoire, et avec un capteur (6) pour la détection du poids de la cuve, caractérisé par les étapes :
    - lecture cyclique de valeurs détectées par le capteur (6),
    - enregistrement d'au moins la dernière valeur lue,
    - détermination de la position de repos (8) de la cuve tant que les valeurs lues passent au-dessous d'une grandeur de tolérance (18) paramétrée par rapport aux valeurs enregistrées,
    - activation de l'unité de commande (5) dès qu'une valeur lue passe au-dessus de la grandeur de tolérance (18) paramétrée par rapport à la/aux valeur(s) enregistrée(s).
  2. Procédé de fonctionnement d'une machine à laver (29) selon la revendication 1,
    caractérisé en ce que,
    en tant que capteur (6) pour la détection du poids de la cuve (2), il est utilisé un capteur de déplacement.
  3. Procédé de fonctionnement d'une machine à laver (29) selon la revendication 1 ou la revendication 2,
    caractérisé en ce que
    l'unité d'analyse évalue, avec plusieurs valeurs (14) détectées et/ou enregistrées, le comportement dans le temps de variations de la valeur.
  4. Procédé de fonctionnement d'une machine à laver (29) selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    l'unité d'analyse détermine le poids du linge avec une valeur (17) détectée définitivement moins la valeur pour la position de repos (8).
  5. Procédé de fonctionnement d'une machine à laver (29) selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    l'unité d'analyse détecte une erreur, en particulier une entrée d'eau non autorisée, et active une fonction d'alarme (26) quand les variations de valeurs (27) des valeurs lues (20, 21, 22, 23) passent au-dessus d'une grandeur paramétrée (28) et quand au moins la valeur lue en dernier (24) passe au-dessus d'une valeur de seuil (20) paramétrée.
  6. Procédé de fonctionnement d'une machine à laver (29) selon la revendication 5, caractérisé en ce que
    l'unité d'analyse active en tant que fonction d'alarme (26)
    - un affichage d'alarme optique (30) et/ou
    - un message d'alarme acoustique (31) et/ou
    - un message d'alarme via des équipements de communication (32) et/ou
    - une mise en circuit d'une pompe d'évacuation de lessive (33).
EP05777385A 2004-09-08 2005-09-05 Procede pour faire fonctionner un lave-linge Expired - Lifetime EP1786971B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05777385T PL1786971T3 (pl) 2004-09-08 2005-09-05 Sposób działania pralki

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004043838A DE102004043838B3 (de) 2004-09-08 2004-09-08 Verfahren zum Betreiben einer Waschmaschine
PCT/EP2005/009509 WO2006027183A1 (fr) 2004-09-08 2005-09-05 Procede pour faire fonctionner un lave-linge

Publications (2)

Publication Number Publication Date
EP1786971A1 EP1786971A1 (fr) 2007-05-23
EP1786971B1 true EP1786971B1 (fr) 2011-02-02

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ID=34485705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05777385A Expired - Lifetime EP1786971B1 (fr) 2004-09-08 2005-09-05 Procede pour faire fonctionner un lave-linge

Country Status (7)

Country Link
US (1) US20080072383A1 (fr)
EP (1) EP1786971B1 (fr)
AT (1) ATE497555T1 (fr)
DE (2) DE102004043838B3 (fr)
ES (1) ES2356552T3 (fr)
PL (1) PL1786971T3 (fr)
WO (1) WO2006027183A1 (fr)

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KR101404104B1 (ko) 2008-04-30 2014-06-10 엘지전자 주식회사 가전기기 진단시스템 및 그 동작방법
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KR101748605B1 (ko) 2010-01-15 2017-06-20 엘지전자 주식회사 냉장고 및 냉장고 진단시스템
KR20110102681A (ko) * 2010-03-11 2011-09-19 삼성전자주식회사 세탁기 및 그 제어방법
EP2592786B1 (fr) 2010-07-06 2015-03-18 LG Electronics Inc. Système et procédé de diagnostic d'appareil ménager
DE102010042173A1 (de) 2010-10-07 2012-04-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Tarieren eines Wegsensors für die Beladungs-Messung und zum Berechnen der Trockenmasse eines Wäschepostens in einer Trommelwaschmaschine
KR101416937B1 (ko) 2011-08-02 2014-08-06 엘지전자 주식회사 가전기기, 가전기기 진단시스템 및 동작방법
KR101252167B1 (ko) 2011-08-18 2013-04-05 엘지전자 주식회사 가전기기 진단장치 및 그 진단방법
KR101942781B1 (ko) 2012-07-03 2019-01-28 엘지전자 주식회사 가전기기 및 가전기기 진단을 위한 신호음 출력방법
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Also Published As

Publication number Publication date
WO2006027183A1 (fr) 2006-03-16
ES2356552T3 (es) 2011-04-11
PL1786971T3 (pl) 2011-05-31
ATE497555T1 (de) 2011-02-15
US20080072383A1 (en) 2008-03-27
DE102004043838B3 (de) 2005-05-25
EP1786971A1 (fr) 2007-05-23
DE502005010939D1 (de) 2011-03-17

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