EP2183423B1 - Procédé de commande d'un processus de lavage - Google Patents

Procédé de commande d'un processus de lavage Download PDF

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Publication number
EP2183423B1
EP2183423B1 EP08774999A EP08774999A EP2183423B1 EP 2183423 B1 EP2183423 B1 EP 2183423B1 EP 08774999 A EP08774999 A EP 08774999A EP 08774999 A EP08774999 A EP 08774999A EP 2183423 B1 EP2183423 B1 EP 2183423B1
Authority
EP
European Patent Office
Prior art keywords
washing
course
turbidity
washing agent
detergent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08774999A
Other languages
German (de)
English (en)
Other versions
EP2183423A1 (fr
Inventor
Ingo Schulze
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2183423A1 publication Critical patent/EP2183423A1/fr
Application granted granted Critical
Publication of EP2183423B1 publication Critical patent/EP2183423B1/fr
Active 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
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • 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
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F2103/20—Washing liquid condition, e.g. turbidity
    • 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
    • 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
    • D06F2105/62—Stopping or disabling machine operation

Definitions

  • the invention relates to a method for controlling a washing process in a programmable controller controllable washing machine, which is equipped with a Waschstoffein réelleeindchtung and with a sensor for detecting a value for the turbidity of the washing liquid.
  • a washing machine for carrying out the method is also specified.
  • An initially designated method is out DE 36 03 323 A1 known.
  • the sensor is used to measure the turbidity of the liquor flowing through a circulation line in order to control processes in the laundry treatment by means of its turbidity values. Further details are not included in the cited disclosure.
  • WO 2006/050767 For example, a method for determining a property of a fluid for a household appliance is known. This should make it possible to make statements about the fluid turbidity and its change in a simple manner and derive properties associated with the optical turbidity of the fluid, derived therefrom (eg, washing or detergent type). How such statements are made, how they are processed and what influences they have does not emerge from this revelation.
  • JP 05 220292 A US 5 438 507 A .
  • JP 04 166194 A and JP 05 345094 A known.
  • a fluid turbidity is detected and depending on the type or type of detergent used closed.
  • the fluid turbidity is detected in these methods after the detergent has been added to the fluid. According to these methods, the washing process is controlled depending on the determined detergent type.
  • the invention has for its object to set up a method described above so that detected in a washing machine, the random and indefinite use of different types of detergent and automatically taken into account in the called washing process to avoid erroneous interpretations of the actual haze caused by laundry soiling.
  • detergent types are to be understood as meaning those which differ from one another due to cloudiness due to embedded particles or without such particles.
  • These are, for example, powdered detergents ( Fig. 1 and 2 ) on the one hand and on the other hand liquid detergents ( Fig. 3 ).
  • Powdered detergents also differ in those which contain completely soluble powder fractions ( Fig. 1 ), and those whose powdery particles do not dissolve ( Fig. 2 ).
  • Liquid detergents ( Fig. 3 ) always dissolve completely, so they have no insoluble particles. Once recognized, which type of detergent was used, this finding should influence the selected wash program.
  • this object is achieved by a method described in the characterizing part of claim 1, characterized in that over a certain period of a portion of the washing process, during which the washing liquid is supplied detergent, the course of the turbidity values is recorded and recorded that from the recorded history of the detergent type is determined and that the washing process is controlled depending on the particular type of detergent.
  • the type of detergent used can now be determined in a simple manner and the selected washing program can be modified with regard to this type of detergent.
  • the measured values of the turbidity determined during the continuous washing process can now be related to a turbidity of the washing liquid caused by the detergent used.
  • powder detergents generally trigger a high initial turbidity, in the further course they show a constant or even falling turbidity, which increases slightly depending on the dirt load from the laundry to be washed.
  • Liquid detergents initially cause a relatively slight turbidity, which is predominantly due to foam which may be formed, and generally increases in the course of time as a function of the amount of dirt introduced.
  • Powdered detergents still differ significantly from one another in that completely soluble powder causes a very high initial haze, which decreases very rapidly (depending on the dissolving behavior), while washing powders with insoluble particles (eg in the case of zeolite powders) cause a comparatively lower initial haze. which, with increasing detachment of particle-containing contamination additively to turbidity from the powder particles (eg builders of zeolite) soon increases again to the level of the initial turbidity.
  • the diagram line PL1 in Fig. 1 shows in period A a steep increase in turbidity T to a high value, which is arranged by a sensor in a reasonably turbulent area of the washing machine, is detected.
  • the detergent is removed from a detergent dispenser (see, for example, US Pat DE 36 03 323 A1 ) supplied by means of fresh water the laundry treatment room.
  • B indicates the dissolution phase and shows almost completely disappeared values for the turbidity used for the completely soluble detergent used.
  • Only after the onset of the particulate soiling detachment process in section C does the turbidity T rise again. At these values, the dissolved detergent has virtually no share; From then on, its proportion is only equal to the initial value at the beginning of section C. Therefore, virtually all the values measured afterwards are due to the soiling of the laundry.
  • Fig. 1 to 3 the dashed diagram line O is also shown, which represents the turbidity curve of a washing liquid, if no detergent is used at all. It is to be assumed that even then a small part of the dirt particles of the laundry will be transferred into the washing liquid, so that the turbidity values T will increase slowly over the time t, but of course remain well below those values which occur when using Adjust detergents.
  • the determined and recorded course of the turbidity values T over the time t is compared with stored progressions, each of which stands for a certain type of detergent. Since different types of detergent types are likely to deviate from this stored course to some extent, the comparison may not be drawn very sharply. Under no circumstances may the permissible tolerance range overlap with the tolerance range of the curve of another type of detergent, so that the selection is ensured.
  • the curve PL2 of the turbidity values T in Fig. 1 However, while the course PL1 has been caused, for example, by a wool wash powder, the course PL2 may originate, for example, from a washing powder for cotton wool. Corresponding deviations can be found in FIGS. 2 and 3 are also registered if they have been caused by detergents of another type but of the same type.
  • Such automatic detection of the detergent used also entails an equally automatic adjustment of the washing process.
  • corresponding process settings are made for the detection and comparison of the turbidity values T with thresholds. This can affect both the washing process and the rinsing process.
  • the result of the automatic detergent detection can be optically signaled, z.
  • such a stored history can be generated by an expert system that examines all processes for matches and deviations, classified and then makes appropriate adjustments automatically.
  • an expert system that examines all processes for matches and deviations, classified and then makes appropriate adjustments automatically.
  • such a system can follow changing conditions on the market of detergents, so that the inventive method requires no external care.
  • a washing machine in which a method according to the invention is to be carried out expediently has a detergent dispensing device with at least one chamber in which optionally a portion of a powdered or a liquid detergent can be held.
  • a slide can be provided in such a chamber as a flow seal, which is pushed when using liquid detergent in the working position. When using washing powder, it is then placed upwards from this position, so that the washing powder can be washed out freely when fresh water is supplied.
  • a washing machine designed according to the invention can also be equipped with an automatic detergent dosing system in addition to the detergent dispensing device for the hand-dosed portioning of washing powder or liquid detergent. If the customer has not prepared any hand-dosed detergent portion for a selected washing program, then the method according to the invention can also detect this condition by registering the course of the turbidity according to the diagram line O. The comparison of this course with a correspondingly stored course automatically leads to the result "no detergent available". In the case of a washing machine without an additional automatic detergent dosing system, this will lead to a standstill of the washing machine and the corresponding signaling "washing agent is missing". However, if the washing machine has an automatic dosing system, then the control unit can also automatically switch over to the use of this dosing system.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (12)

  1. Procédé de commande d'un processus de lavage dans un lave-linge apte à être commandé par un programmateur, lequel lave-linge est équipé d'un dispositif d'alimentation en détergent et d'un capteur destiné à détecter une valeur (T) de la turbidité du liquide de lavage, dans lequel :
    - le liquide de lavage est alimenté en détergent au cours de la première partie (A) située au début du processus de lavage,
    - l'évolution (PL1, PL2, PU, FL) des valeurs de turbidité (T) est détectée et enregistrée au cours d'une deuxième partie (B) suivante du processus de lavage, pendant laquelle le détergent ajouté au liquide de lavage se dissout dans le liquide de lavage,
    - le type de détergent est déterminé à partir de l'évolution enregistrée (PL1, PL2, PU, FL) de la deuxième partie, et
    - le processus de lavage est commandé en fonction du type de détergent déterminé,
    caractérisé en ce que
    - l'évolution (PL1, PL2, PU, FL) des valeurs de turbidité (T) est détectée et enregistrée également au cours de la première partie (A) du processus de lavage,
    - l'évolution (PL1, PL2, PU, FL) des valeurs de turbidité (T) est détectée et enregistrée pendant une durée déterminée (D) de la première et deuxième partie (A+B), et
    - le type de détergent est déterminé à partir de l'évolution enregistrée (PL1, PL2, PU, FL).
  2. Procédé selon la revendication 1, caractérisé en ce que la durée (D) est au maximum telle que l'on obtient une dissolution complète d'un détergent dont la dissolution est la plus lente, qui peut s'utiliser pour le processus prévu et qui peut être ajouté dans une quantité maximum.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la partie (A+B) du processus de lavage est située au début de la partie du programme de lavage.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que les valeurs de turbidité (T) détectées pendant le processus de lavage continu sont rapportées à une turbidité du liquide de lavage causée par le détergent utilisé.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que l'évolution enregistrée (PL1, PL2, PU, FL) est comparée avec une évolution mémorisée dans le programmateur.
  6. Procédé selon la revendication 5, caractérisé en ce que l'évolution mémorisée a été élaborée à partir d'un système expert qui traite des valeurs empiriques de processus de lavage précédents.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le type de détergent déterminé, et/ou le processus de lavage sélectionné par la suite, est signalé optiquement.
  8. Procédé selon l'une des revendications 1 à 7, dans lequel le processus de lavage est suivi d'un processus de rinçage, caractérisé en ce que le processus de rinçage qui suit le processus de lavage, est commandé également en fonction du type de détergent déterminé.
  9. Procédé selon l'une des revendications 5 à 8, caractérisé en ce qu'une autre évolution de turbidité (O) d'un liquide de lavage exempt de détergent est mémorisée dans le programmateur, et en ce que l'évolution enregistrée (PL1, PL2, PU, FL) est comparée avec ladite autre évolution mémorisée.
  10. Procédé selon la revendication 9, caractérisé en ce que le lave-linge est arrêté lorsque la comparaison révèle qu'il n'y a pas de détergent dans le liquide de lavage.
  11. Procédé selon la revendication 9, caractérisé en ce qu'une absence de détergent est signalée lorsque la comparaison révèle qu'il n'y a pas de détergent dans le liquide de lavage.
  12. Procédé selon la revendication 9, caractérisé en ce que le programmateur émet une invitation à distribuer des portions dosées individuelles de détergents approvisionnés lorsque la comparaison révèle qu'il n'y a pas de détergent dans le liquide de lavage.
EP08774999A 2007-07-25 2008-07-10 Procédé de commande d'un processus de lavage Active EP2183423B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007034662A DE102007034662A1 (de) 2007-07-25 2007-07-25 Verfahren zum Steuern eines Waschprozesses
PCT/EP2008/059039 WO2009013147A1 (fr) 2007-07-25 2008-07-10 Procédé de commande d'un processus de lavage

Publications (2)

Publication Number Publication Date
EP2183423A1 EP2183423A1 (fr) 2010-05-12
EP2183423B1 true EP2183423B1 (fr) 2011-03-16

Family

ID=39885075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08774999A Active EP2183423B1 (fr) 2007-07-25 2008-07-10 Procédé de commande d'un processus de lavage

Country Status (4)

Country Link
EP (1) EP2183423B1 (fr)
AT (1) ATE502151T1 (fr)
DE (2) DE102007034662A1 (fr)
WO (1) WO2009013147A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002145B3 (de) * 2009-04-02 2010-11-18 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Trübungssensors sowie Waschverfahren und Haushaltsgerät zur Durchführung eines Waschverfahrens
DE102009027950A1 (de) * 2009-07-23 2011-01-27 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät
PL2644079T3 (pl) * 2012-03-30 2017-08-31 Electrolux Home Products Corporation N.V. Sposób i urządzenie do wykrywania detergentu w wodzie procesowej urządzenia gospodarstwa domowego poprzez analizowanie zmętnienia wody procesowej
PL3161203T3 (pl) 2014-06-24 2020-05-18 Electrolux Appliances Aktiebolag Sposób eksploatacji urządzenia pralniczego i urządzenie pralnicze realizujące ten sposób
EP3161204B1 (fr) 2014-06-24 2023-10-18 Electrolux Appliances Aktiebolag Procédé de commande d'un appareil de lavage et appareil de lavage
EP3161202B1 (fr) 2014-06-24 2020-09-09 Electrolux Appliances Aktiebolag Procédé de fonctionnement d'appareil de lavage, et appareil de lavage
CN111374625B (zh) * 2018-12-28 2022-07-15 青岛海尔洗衣机有限公司 一种洗鞋设备的控制方法

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Also Published As

Publication number Publication date
ATE502151T1 (de) 2011-04-15
WO2009013147A1 (fr) 2009-01-29
DE102007034662A1 (de) 2009-01-29
EP2183423A1 (fr) 2010-05-12
DE502008002899D1 (de) 2011-04-28

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