EP0644291A1 - Procédé et dispositif pour déterminer les paramètres spécifiques du linge dans les machines à laver domestiques - Google Patents

Procédé et dispositif pour déterminer les paramètres spécifiques du linge dans les machines à laver domestiques Download PDF

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Publication number
EP0644291A1
EP0644291A1 EP94113750A EP94113750A EP0644291A1 EP 0644291 A1 EP0644291 A1 EP 0644291A1 EP 94113750 A EP94113750 A EP 94113750A EP 94113750 A EP94113750 A EP 94113750A EP 0644291 A1 EP0644291 A1 EP 0644291A1
Authority
EP
European Patent Office
Prior art keywords
laundry
washing
drum
specific parameters
tub
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Withdrawn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
EP94113750A
Other languages
German (de)
English (en)
Inventor
Rainer Dr. Dipl.-Phys. Stamminger
Alfred Ing. Henninger (Fh)
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
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH, AEG Hausgeraete GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0644291A1 publication Critical patent/EP0644291A1/fr
Withdrawn legal-status Critical Current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
    • D06F34/18—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
    • 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
    • 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
    • D06F2103/06—Type or material
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed

Definitions

  • the invention relates to a method for determining laundry-specific parameters in household washing machines according to the preamble of claim 1 and a device for performing the method.
  • a device for performing the method In the narrower sense, it concerns both the recording and the adaptation of said parameters to the requirements of different textiles.
  • the amount and type of laundry primarily determine the course of a washing program; To optimize the program sequence and thus to achieve good washing results, both values must be known exactly.
  • the bottom of a tub which is mounted on vibrating shock absorbers, is connected to an altitude measuring device via a rigid flow line.
  • the altitude measuring device includes essentially from a device operating on the principle of float or pressure measurement.
  • An elastic sensor rod in the form of a Bowden cable is attached to the float or the diaphragm of the pressure cell, which moves together with the diaphragm or the float and transmits the diaphragm deflection or the float stroke to a position transmitter.
  • an iron core is attached to the free end of the sensor rod, which is guided in a longitudinally movable manner in a coil of said position sensor. The line ends of the coil are connected to an evaluation device.
  • the mass of the laundry item introduced is determined in the known method as follows: after loading the washing machine and after starting the program, the laundry drum is operated for at least one revolution and the measured altitude value is stored. The mass introduced lowers the tub against the frictional force of the shock absorbers. The amount of water supplied is determined during the feed. The water weight further lowers the tub. At the same time, however, the pressure cell membrane is acted on and the sensor rod is raised. The amount of water supplied results from the difference between the last determined value and the stored altitude measurement value of the dry laundry item introduced.
  • the laundry drum After detecting the amount of water supplied, the laundry drum is rotated for a certain time and the laundry is thereby wetted. After the laundry drum has stopped, the altitude is measured again and the amount of water absorbed by the laundry is determined. A computer determines the specific absorbency of the laundry item based on the dry weight of the laundry and the amount of water absorbed.
  • the detection and electrical preparation of laundry-specific parameters require considerable and costly effort in the known method.
  • the height measuring device required for this consists, for example, of a float, float housing (or diaphragm pressure cell), sensor rod, iron core, core housing and suspension spring.
  • the position transmitter consists of a coil with housing that is fixed and separately arranged on the device. The measured values induced here are fed to an evaluation device via connecting lines.
  • the invention has for its object to provide a simple and quickly feasible method and an apparatus therefor, which both improve the quantity dependency and adapt laundry-specific parameters to the requirements of the most varied textiles, i.e. Types of laundry allowed.
  • the diagram illustrates the pressure curve, i.e. the water level change during the drum reversing downtime with different laundry loads.
  • a drum reversing cycle runs at the beginning of each washing program.
  • the laundry drum rotates alternately in clockwise and counter-clockwise rotation with certain drum speeds or speeds of rotation with intervening drum stoppages ts before each change of direction. While reversing, the laundry moving in the drum sucks lye out of the tub. During the drum downtimes ts, the laundry falls onto the drum base, the weight of the items of laundry lying above pushing down on the items below and thus pressing some of the items lye that has already been soaked up, which then seeps back into the tub.
  • the amount of lye L1, L2 squeezed out again and again during the drum standstill times ts and their dripping or outlet speed v1, v2 ... depend on the amount of laundry introduced, the type of laundry and the laundry moisture already carried out. Both values L1, L2 and v1, v2 are used to adapt the aforementioned laundry-specific parameters for an optimal washing process.
  • Analog pressure measuring device also called analog pressure switch or analog pressure cell. It is an electronic pressure sensor that supplies output signals in the form of direct electrical voltage U A approximately linearly to its pressurization. Analog pressure transducers are connected hydraulically in the same way as normal diaphragm pressure switches, but they have much higher response accuracies.
  • the diagram shows the pressure P (millimeter water column mmWs in the tub), respectively the output signal U A (V) of the measuring device as a function of the drum standstill time ts with the drum loading quantity as a parameter.
  • the squeezed amount of lye L1 corresponds to the output difference signal
  • the respective suds exit velocities v1 ... correspond to the momentary curve rise
  • the amount of alkali L2 squeezed out during the drum standstill time ts (L2 being much larger than L1) produces the output difference signal (in which much larger than The suds exit velocities v2 ... again result from the instantaneous rise values
  • fuzzy rules such as B .: if "L” is very large and “v” is low, then “lots of cotton laundry” or: if "L” is medium and “v” is large, then “lots of synthetic fiber laundry”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP94113750A 1993-09-17 1994-09-02 Procédé et dispositif pour déterminer les paramètres spécifiques du linge dans les machines à laver domestiques Withdrawn EP0644291A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4331603A DE4331603A1 (de) 1993-09-17 1993-09-17 Verfahren zur Ermittlung wäschespezifischer Parameter in Haushalt-Waschmaschinen und Vorrichtung zur Durchführung des Verfahrens
DE4331603 1993-09-17

Publications (1)

Publication Number Publication Date
EP0644291A1 true EP0644291A1 (fr) 1995-03-22

Family

ID=6497927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113750A Withdrawn EP0644291A1 (fr) 1993-09-17 1994-09-02 Procédé et dispositif pour déterminer les paramètres spécifiques du linge dans les machines à laver domestiques

Country Status (2)

Country Link
EP (1) EP0644291A1 (fr)
DE (1) DE4331603A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6958693B2 (en) 2002-05-24 2005-10-25 Procter & Gamble Company Sensor device and methods for using same
WO2008003577A1 (fr) 2006-07-04 2008-01-10 BSH Bosch und Siemens Hausgeräte GmbH Procédé de traitement de linge, ainsi que machine à laver appropriée à cet effet
US7930786B2 (en) 2008-03-31 2011-04-26 Whirlpool Corporation Method for determining load size and/or setting water level in a washing machine
US7930787B2 (en) 2008-03-31 2011-04-26 Whirlpool Corporation Method for determining load size and/or setting water level in a washing machine
US8245342B2 (en) 2008-07-30 2012-08-21 Whirlpool Corporation Method for determining load size in a washing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042190A1 (fr) * 1980-06-13 1981-12-23 Laboratoires D'electronique Et De Physique Appliquee L.E.P. Procédé pour la détermination de la nature moyenne du matériau constitutif du linge dans une machine à laver le linge et machine à laver pour la mise en oeuvre dudit procédé
GB2081751A (en) * 1980-08-12 1982-02-24 Bosch Siemens Hausgeraete Water Level Regulation in an Automatic Washing Machine
DE3030491A1 (de) * 1980-08-12 1982-02-25 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Verfahren zum bemessen der automatisch zulaufenden wassermenge und trommelwaschmaschine zur durchfuehrung des verfahrens
DE4122307A1 (de) * 1991-07-05 1993-01-14 Licentia Gmbh Verfahren zur ermittlung von programmsteuerungs-parametern fuer haushalt-waschmaschinen
FR2684116A3 (fr) * 1991-11-25 1993-05-28 Licentia Patent Verwaltungs Gmbh Procede destine a determiner la quantite d'eau necessaire dans des machines a laver programmables.
DE4141213A1 (de) * 1991-12-13 1993-06-17 Bosch Siemens Hausgeraete Verfahren zum bestimmen der waesche-trockenmasse, des wasserstands und der gebundenen flotte in einer trommelwaschmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0042190A1 (fr) * 1980-06-13 1981-12-23 Laboratoires D'electronique Et De Physique Appliquee L.E.P. Procédé pour la détermination de la nature moyenne du matériau constitutif du linge dans une machine à laver le linge et machine à laver pour la mise en oeuvre dudit procédé
GB2081751A (en) * 1980-08-12 1982-02-24 Bosch Siemens Hausgeraete Water Level Regulation in an Automatic Washing Machine
DE3030491A1 (de) * 1980-08-12 1982-02-25 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Verfahren zum bemessen der automatisch zulaufenden wassermenge und trommelwaschmaschine zur durchfuehrung des verfahrens
DE4122307A1 (de) * 1991-07-05 1993-01-14 Licentia Gmbh Verfahren zur ermittlung von programmsteuerungs-parametern fuer haushalt-waschmaschinen
FR2684116A3 (fr) * 1991-11-25 1993-05-28 Licentia Patent Verwaltungs Gmbh Procede destine a determiner la quantite d'eau necessaire dans des machines a laver programmables.
DE4141213A1 (de) * 1991-12-13 1993-06-17 Bosch Siemens Hausgeraete Verfahren zum bestimmen der waesche-trockenmasse, des wasserstands und der gebundenen flotte in einer trommelwaschmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6958693B2 (en) 2002-05-24 2005-10-25 Procter & Gamble Company Sensor device and methods for using same
WO2008003577A1 (fr) 2006-07-04 2008-01-10 BSH Bosch und Siemens Hausgeräte GmbH Procédé de traitement de linge, ainsi que machine à laver appropriée à cet effet
US7930786B2 (en) 2008-03-31 2011-04-26 Whirlpool Corporation Method for determining load size and/or setting water level in a washing machine
US7930787B2 (en) 2008-03-31 2011-04-26 Whirlpool Corporation Method for determining load size and/or setting water level in a washing machine
US8245342B2 (en) 2008-07-30 2012-08-21 Whirlpool Corporation Method for determining load size in a washing machine

Also Published As

Publication number Publication date
DE4331603A1 (de) 1995-03-23

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