EP0727179A2 - Procédé pour commander un lave vaisselle - Google Patents

Procédé pour commander un lave vaisselle Download PDF

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Publication number
EP0727179A2
EP0727179A2 EP96100441A EP96100441A EP0727179A2 EP 0727179 A2 EP0727179 A2 EP 0727179A2 EP 96100441 A EP96100441 A EP 96100441A EP 96100441 A EP96100441 A EP 96100441A EP 0727179 A2 EP0727179 A2 EP 0727179A2
Authority
EP
European Patent Office
Prior art keywords
value
water
rinse
program
temperature gradient
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.)
Granted
Application number
EP96100441A
Other languages
German (de)
English (en)
Other versions
EP0727179B1 (fr
EP0727179A3 (fr
Inventor
Oliver Dipl.-Ing. Wick
Werner Dipl.-Ing. Braun
Walter Dipl.-Ing. Sams
Jürgen Vogel
Rainer Dr. Dipl.-Phys. Stamminger
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7754352&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0727179(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0727179A2 publication Critical patent/EP0727179A2/fr
Publication of EP0727179A3 publication Critical patent/EP0727179A3/fr
Application granted granted Critical
Publication of EP0727179B1 publication Critical patent/EP0727179B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/08—Drain or recirculation pump parameters, e.g. pump rotational speed or current absorbed by the motor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/12—Water temperature
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/14—Water pressure or flow rate
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/04—Water pressure or flow rate
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/06—Water heaters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/07—Consumable products, e.g. detergent, rinse aids or salt
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the invention relates to a method for operating a dishwasher according to the preamble of the first claim.
  • a basic washing program is specified that is tailored to the maximum cleaning conditions of the dishes to be washed.
  • a 1/2 button is provided, by means of which a partial load is taken into account, the dishes to be cleaned then being washed, for example, only in the upper basket. Pressing this 1/2 button leads to faulty washing processes if a full machine is washed with the button pressed or if the machine is only moderately loaded when the button is not pressed, but still processes the full basic washing program.
  • the invention has for its object to develop a method according to the preamble of the first claim so that manual intervention in the washing program is unnecessary.
  • the amount of dishes placed in the washing container becomes automatic recognized, for which purpose it is determined what amount of water is necessary in order to wet the surface of the dishes brought into operation. The more water is used for this wetting, the more tableware surface and, if necessary, the amount of crockery is usually available. Depending on the surface of the dishes to be cleaned, there is also the time, the amount of water and the amount of detergent that must be available for proper cleaning in the washing process.
  • a wetting value is generated and, if a lower load is found, the basic wash program is changed accordingly, in the shortened wash cycles, the transfer of one wash cycle into the other wash cycle before the maximum duration provided for the first wash cycle has elapsed, by hiding partial emptying and refilling cycles in the cleaning cycle, by omitting the or an intermediate rinsing cycle, by reducing the pump speed and thus the spray pressure, by reducing the amount of detergent and / or rinse aid and the like.
  • the load-dependent wetting value corresponds to the difference between this supply water quantity and a default value which results from the filling quantity when the dishwasher compartment is not loaded.
  • the loading condition in the cleaning rinse cycle can also be determined in the same way.
  • the loading-dependent wetting value from the difference between the measured quantity of the pre-rinse cycle and the measured quantity of the cleaning rinse cycle, thereby taking into account that, for example, one with the opening facing upward directed cup is present, which holds back an amount of water which is lost for the rinsing process in the pre-rinse cycle, but does not lead to a falsification of the total filling amount in the cleaning rinse cycle.
  • the gradient value thus represents a measure of the existing crockery mass after the washing container heater has a constant output.
  • both the wetting value or the wetting values and the temperature gradient value only represent fuzzy values, these values are preferably fed to a fuzzy controller, which approximately determine the degree of loading on the basis of fuzzy characteristic curves stored in tables.
  • a fuzzy controller which approximately determine the degree of loading on the basis of fuzzy characteristic curves stored in tables.
  • partial wash cycles are omitted from the dishwashing program or are converted into one another with a shortened program duration.
  • a decrease in the wetting value and / or to higher temperature gradient values can also result in a reduction in the pump output or the spray pressure with which rinsing liquid is conveyed onto the items to be rinsed.
  • the heating rate of the washing liquid can also be changed or its final temperature reduced or the amount of a detergent or rinse aid to be added to the washing water can be adapted to the amount of dishes to be cleaned. If the deviation of the load-dependent values from the values of a dishwasher loaded according to standard regulations, for example, is relatively small, then it is It is advisable to reduce the drive speed of the circulating pump and the final heating temperature in the final rinse cycle compared to the final speed and temperature values specified in the basic rinse program. As these values change, the partial emptying and refilling cycle can also be hidden from the basic washing program and, if necessary, the pump speed can also be reduced in one or at least one intermediate rinsing cycle.
  • a dishwasher for carrying out a washing program to be changed as a function of the load has rotatably mounted spray arms in a washing container to be cleaned with dishes, which are fed with washing liquid by a circulation pump fed from the drain pan of the washing container.
  • solenoid valves are provided which, like the circulation pump, are controlled according to the program.
  • the difference value (s) determined from the water supply quantities determined via pressure sensors and / or the actual temperature gradient value during the heating of the rinsing liquid are fuzzyfied using fuzzy rules and determined tabulated membership functions in such a way that load-dependent control signals are generated which are used by the program control for Modification of the basic washing program can be supplied.
  • a digital pressure switch the control signals of which can be directly processed further in a digital controller, is preferably used to determine the water supply quantity.
  • the pressure switch then sends a control signal to interrupt the initiated water flow to the program control when the rinsing level in the rinsing tank for water saving has reached a level at which the running circulation pump has just the amount of supply water available in the drain pan which is necessary for its proper operation if necessary reduced load is required.
  • a pressure sensor can be used which controls a predetermined level in the drain pan.
  • the pressure sensor can also measure the pressure generated by the circulation pump and then control the interruption of the feed valve when the fluctuation amplitude of the pump pressure has fallen below a certain value, at which it can be assumed that no air is sucked in.
  • a new water supply can be controlled until the operational level is reached when the flushing liquid quantity required for the correct operation of the circulation pump is not or no longer available during the program run.
  • To determine the water supply quantity it is expedient to measure the switch-on time when the flow rate of the supply valve in question is known and to use it as a control value for the supply quantity.
  • its pump speed is expediently recorded by means of a tachometer and its output signal is fed to speed control electronics which are additionally acted upon by a speed control signal which is dependent on the environment. It is expedient to save the need to reduce the speed once determined during a program run and to add it to the current washing program in the subsequent washing program steps.
  • the speed of the circulation pump is reduced, then only a reduced amount of feed water is required, so that at least operating energy for the circulation pump is achieved due to the reduced pump output and a lower water requirement.
  • the energy saving is also improved if the temperature in the rinse aid, for example, is reduced from 70 degrees Celsius to 65 degrees Celsius with a reduced load.
  • the already mentioned default value can not only correspond to an empirically determined fixed value or the inflow amount that is required when the circulating pump is running without loading dishes, it can also correspond to the inflow water amount that was determined in the last water-loaded rinse cycle of the previous completed rinsing program after there before the water supply the dishes were wetted anyway.
  • the consumption values are kept low, especially for partial loads, and are kept to a minimum even with the standard load. In the case of partial loads, it is irrelevant where the dishes are arranged in the washing container.
  • the basic wash program to be changed is based on a defined load as the basis for the cleaning conditions, against which expedient changes to the wash program sequence are made when the load changes.

Landscapes

  • Washing And Drying Of Tableware (AREA)
EP96100441A 1995-02-18 1996-01-13 Procédé pour commander un lave vaisselle et lave vaisselle Expired - Lifetime EP0727179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505552A DE19505552A1 (de) 1995-02-18 1995-02-18 Verfahren zum Betreiben einer Geschirrspülmaschine
DE19505552 1995-02-18

Publications (3)

Publication Number Publication Date
EP0727179A2 true EP0727179A2 (fr) 1996-08-21
EP0727179A3 EP0727179A3 (fr) 1997-02-05
EP0727179B1 EP0727179B1 (fr) 2001-07-04

Family

ID=7754352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100441A Expired - Lifetime EP0727179B1 (fr) 1995-02-18 1996-01-13 Procédé pour commander un lave vaisselle et lave vaisselle

Country Status (2)

Country Link
EP (1) EP0727179B1 (fr)
DE (2) DE19505552A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1192893A2 (fr) * 2000-09-28 2002-04-03 Miele & Cie. GmbH & Co. Procédé pour détecter la charge dans un lave-vaisselle programmable avec de la vaisselle et lave-vaisselle pour exécuter un tel procédé
WO2004047608A1 (fr) * 2002-11-27 2004-06-10 BSH Bosch und Siemens Hausgeräte GmbH Procede pour detecter la quantite de vaisselle dans la cuve d'un lave-vaisselle et lave-vaisselle pour realiser ce procede
WO2006053634A1 (fr) * 2004-11-19 2006-05-26 Meiko Maschinenbau Gmbh & Co. Kg Procede pour evaluer et garantir un effet hygienique thermique
WO2009074415A1 (fr) * 2007-12-11 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour déterminer une variation de capacité thermique d'un appareil électroménager à eau liée à la charge
EP2160970A3 (fr) * 2008-09-05 2011-05-18 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Procédé de détection du poids pour lave-vaisselle
EP2177147A3 (fr) * 2008-10-20 2011-10-05 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Procédé d'ouverture d'une chambre de détergent
US10335012B2 (en) 2015-10-19 2019-07-02 Electrolux Home Products, Inc. Dishwasher spray fill

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538580B4 (de) * 1995-10-17 2008-07-24 Köhler, Katharina Verfahren zum Betreiben einer Geschirrspülmaschine
DE19651297B4 (de) * 1996-12-10 2016-11-24 BSH Hausgeräte GmbH Verfahren zum Betreiben einer Geschirrspülmaschine
DE19651296B4 (de) * 1996-12-10 2016-11-10 BSH Hausgeräte GmbH Geschirrspülmaschine mit einer Steuereinrichtung
DE10008318B4 (de) * 2000-08-10 2008-01-10 AEG Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Entleerungssystem sowie Verfahren zur Befüllung und zur Überwachung einer Entleerung eines Arbeitsbehälters
DE10048085A1 (de) * 2000-09-28 2002-04-18 Miele & Cie Verfahren zur Erkennung der Beladung einer programmgesteuerten Geschirrspülmaschine mit Spülgut und Geschirrspülmaschine zur Durchführung des Verfahrens
DE102007011307B3 (de) * 2007-03-06 2008-08-21 Miele & Cie. Kg Verfahren zur Durchführung eines Wassereinlaufs in den Spülbehälter einer Spülmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574645A1 (fr) * 1984-12-14 1986-06-20 Esswein Sa Procede de determination de la charge en vaisselle, et lave-vaisselle mettant en oeuvre un tel procede
JPH0260624A (ja) * 1988-08-29 1990-03-01 Matsushita Seiko Co Ltd 食器乾燥器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2574645A1 (fr) * 1984-12-14 1986-06-20 Esswein Sa Procede de determination de la charge en vaisselle, et lave-vaisselle mettant en oeuvre un tel procede
JPH0260624A (ja) * 1988-08-29 1990-03-01 Matsushita Seiko Co Ltd 食器乾燥器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 236 (C-0720), 18.Mai 1990 & JP-A-02 060624 (MATSUSHITA SEIKO CO LTD), 1.März 1990, *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1192893A2 (fr) * 2000-09-28 2002-04-03 Miele & Cie. GmbH & Co. Procédé pour détecter la charge dans un lave-vaisselle programmable avec de la vaisselle et lave-vaisselle pour exécuter un tel procédé
EP1192893A3 (fr) * 2000-09-28 2003-06-11 Miele & Cie. GmbH & Co. Procédé pour détecter la charge dans un lave-vaisselle programmable avec de la vaisselle et lave-vaisselle pour exécuter un tel procédé
WO2004047608A1 (fr) * 2002-11-27 2004-06-10 BSH Bosch und Siemens Hausgeräte GmbH Procede pour detecter la quantite de vaisselle dans la cuve d'un lave-vaisselle et lave-vaisselle pour realiser ce procede
CN100398053C (zh) * 2002-11-27 2008-07-02 Bsh博世和西门子家用器具有限公司 用来识别在一个洗碗机的洗涤容器中餐具量的方法以及用来实施该方法的洗碗机
US8293022B2 (en) 2002-11-27 2012-10-23 Bsh Bosch Und Siemens Hausgeraete Gmbh Method for detecting the quantity of dishes in the washing container of a dishwasher and dishwasher for carrying out said method
WO2006053634A1 (fr) * 2004-11-19 2006-05-26 Meiko Maschinenbau Gmbh & Co. Kg Procede pour evaluer et garantir un effet hygienique thermique
WO2009074415A1 (fr) * 2007-12-11 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour déterminer une variation de capacité thermique d'un appareil électroménager à eau liée à la charge
CN101896111B (zh) * 2007-12-11 2013-01-09 Bsh博世和西门子家用器具有限公司 用于检测载水家用电器的与负载有关的热容量变化的方法
EP2160970A3 (fr) * 2008-09-05 2011-05-18 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Procédé de détection du poids pour lave-vaisselle
EP2177147A3 (fr) * 2008-10-20 2011-10-05 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. Procédé d'ouverture d'une chambre de détergent
US10335012B2 (en) 2015-10-19 2019-07-02 Electrolux Home Products, Inc. Dishwasher spray fill
US11071436B2 (en) 2015-10-19 2021-07-27 Electrolux Home Products, Inc. Dishwasher spray fill

Also Published As

Publication number Publication date
EP0727179B1 (fr) 2001-07-04
EP0727179A3 (fr) 1997-02-05
DE59607189D1 (de) 2001-08-09
DE19505552A1 (de) 1996-08-22

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