EP0992622A3 - Method for monitoring and controlling the rinsing process in a washing machine and a washing machine working according to the method - Google Patents

Method for monitoring and controlling the rinsing process in a washing machine and a washing machine working according to the method Download PDF

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Publication number
EP0992622A3
EP0992622A3 EP99119775A EP99119775A EP0992622A3 EP 0992622 A3 EP0992622 A3 EP 0992622A3 EP 99119775 A EP99119775 A EP 99119775A EP 99119775 A EP99119775 A EP 99119775A EP 0992622 A3 EP0992622 A3 EP 0992622A3
Authority
EP
European Patent Office
Prior art keywords
washing machine
rinsing process
turbidity
monitoring
controlling
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.)
Withdrawn
Application number
EP99119775A
Other languages
German (de)
French (fr)
Other versions
EP0992622A2 (en
Inventor
Gundula Czyzewski
Ingo Schulze
Christian Engel
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 EP0992622A2 publication Critical patent/EP0992622A2/en
Publication of EP0992622A3 publication Critical patent/EP0992622A3/en
Withdrawn legal-status Critical Current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
    • D06F33/38—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
    • 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
    • D06F2103/22—Content of detergent 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of 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
    • 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
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps

Landscapes

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

Abstract

In einer Waschmaschine wird bekanntermaßen am Meßort eines optischen Trübungssensors 5, 6 die Trübung einer Spülflüssigkeit 7 gemessen und der weitere Spülprozeß anhand des gemessenen Trübungswertes von einer Programmsteuereinrichtung festgelegt. Zur verbesserten Überwachung und Steuerung des Spülprozesses wird der Trübungssensor 5, 6 außerdem zur Schaumerkennung verwendet, wenn sich keine Spülflüssigkeit 7 an seinem Meßort befindet. Wenn Schaum 8 am Meßort des Trübungssensors 5, 6 erkannt wird, können beispielsweise weitere Spülgange vorgesehen werden. In einem solchen Fall kann auch der Spülprozeß intensiviert oder können die Schaumbildung fördernde Einflüsse ausgeschaltet oder verringert werden.

Figure 00000001
As is known, the turbidity of a rinsing liquid 7 is measured in a washing machine at the measuring location of an optical turbidity sensor 5, 6 and the further rinsing process is determined by a program control device on the basis of the measured turbidity value. For improved monitoring and control of the washing process, the turbidity sensor 5, 6 is also used for foam detection when there is no washing liquid 7 at its measuring location. If foam 8 is detected at the measurement location of the turbidity sensor 5, 6, further rinse cycles can be provided, for example. In such a case, the rinsing process can also be intensified, or influences that promote foam formation can be switched off or reduced.
Figure 00000001
EP99119775A 1998-10-07 1999-10-06 Method for monitoring and controlling the rinsing process in a washing machine and a washing machine working according to the method Withdrawn EP0992622A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19846248 1998-10-07
DE19846248A DE19846248A1 (en) 1998-10-07 1998-10-07 Process for monitoring and controlling the washing process in a laundry treatment machine and laundry treatment machine working according to this process

Publications (2)

Publication Number Publication Date
EP0992622A2 EP0992622A2 (en) 2000-04-12
EP0992622A3 true EP0992622A3 (en) 2002-02-06

Family

ID=7883732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119775A Withdrawn EP0992622A3 (en) 1998-10-07 1999-10-06 Method for monitoring and controlling the rinsing process in a washing machine and a washing machine working according to the method

Country Status (2)

Country Link
EP (1) EP0992622A3 (en)
DE (1) DE19846248A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109487494A (en) * 2017-09-11 2019-03-19 无锡小天鹅股份有限公司 The control method and washing machine of foam

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234472A1 (en) 2002-07-29 2004-02-12 BSH Bosch und Siemens Hausgeräte GmbH A method for preventing wash liquor foam inhibiting pump performance in a horizontal drum automatic washing machine has a foam detector controlling the drive motor for the drum
US7690061B2 (en) 2005-12-22 2010-04-06 General Electric Company Method and apparatus for controlling a laundering process
DE102007033492A1 (en) * 2007-07-18 2009-01-22 BSH Bosch und Siemens Hausgeräte GmbH Process for controlling foam production in a washing machine and washing machine suitable for this purpose
DE102007036041A1 (en) 2007-08-01 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Method for removing foam in a drum washing machine and drum washing machine suitable for this purpose
DE102007052837A1 (en) * 2007-11-06 2009-05-07 BSH Bosch und Siemens Hausgeräte GmbH Process for treating laundry in a household washing machine with a foam-forming liquor
DE102009027933A1 (en) 2009-07-22 2011-01-27 BSH Bosch und Siemens Hausgeräte GmbH Method for recognizing foam in tub of drum-type washing machine during main washing phase, involves evaluating temperature curves by continuous determination of gradients of temperature curves over preset time period
DE102009045433B4 (en) 2009-10-07 2011-09-15 BSH Bosch und Siemens Hausgeräte GmbH Process for treating foam, correspondingly programmed control device and corresponding laundry treatment machine
DE102010029890A1 (en) * 2010-06-09 2011-12-15 BSH Bosch und Siemens Hausgeräte GmbH Water-bearing household appliance with a turbidity sensor
US8844082B2 (en) 2010-12-14 2014-09-30 Whirlpool Corporation Laundry treating appliance with biofilm treating cycle
US20120144871A1 (en) * 2010-12-14 2012-06-14 Whirlpool Corporation Laundry treating appliance with biofilm treating cycle
DE102015116525A1 (en) 2015-09-29 2017-03-30 Abb Schweiz Ag Measuring the velocity of a gas stream using particles
CN110735291B (en) * 2018-07-20 2023-07-21 重庆海尔洗衣机有限公司 Turbidity detection device, washing machine and control method of washing machine
EP3844335A1 (en) 2018-08-27 2021-07-07 Ecolab USA Inc. System and technique for extracting particulate-containing liquid samples without filtration

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242927A1 (en) * 1992-12-18 1994-06-23 Bauknecht Hausgeraete Optical sensor, e.g. for detecting liquids
DE4336520A1 (en) * 1993-10-26 1995-04-27 Siemens Ag Optical sensor
DE19626203A1 (en) * 1996-06-29 1998-01-02 Aeg Hausgeraete Gmbh Optical sensor
DE19629806A1 (en) * 1996-07-24 1998-01-29 Aeg Hausgeraete Gmbh Washing machine etc. has turbidity sensor
EP0849390A2 (en) * 1996-12-18 1998-06-24 Bosch-Siemens HausgerÀ¤te GmbH Washing machine with a liquid pipe comprising several parts
DE19821148A1 (en) * 1998-05-12 1999-11-18 Aeg Hausgeraete Gmbh Program-controlled electric domestic appliance, e.g. washing machine, dishwasher etc.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242927A1 (en) * 1992-12-18 1994-06-23 Bauknecht Hausgeraete Optical sensor, e.g. for detecting liquids
DE4336520A1 (en) * 1993-10-26 1995-04-27 Siemens Ag Optical sensor
DE19626203A1 (en) * 1996-06-29 1998-01-02 Aeg Hausgeraete Gmbh Optical sensor
DE19629806A1 (en) * 1996-07-24 1998-01-29 Aeg Hausgeraete Gmbh Washing machine etc. has turbidity sensor
EP0849390A2 (en) * 1996-12-18 1998-06-24 Bosch-Siemens HausgerÀ¤te GmbH Washing machine with a liquid pipe comprising several parts
DE19821148A1 (en) * 1998-05-12 1999-11-18 Aeg Hausgeraete Gmbh Program-controlled electric domestic appliance, e.g. washing machine, dishwasher etc.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109487494A (en) * 2017-09-11 2019-03-19 无锡小天鹅股份有限公司 The control method and washing machine of foam

Also Published As

Publication number Publication date
DE19846248A1 (en) 2000-04-13
EP0992622A2 (en) 2000-04-12

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