EP3376931B1 - Method for operating a dish washing machine and dish washing machine - Google Patents

Method for operating a dish washing machine and dish washing machine Download PDF

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Publication number
EP3376931B1
EP3376931B1 EP16784212.9A EP16784212A EP3376931B1 EP 3376931 B1 EP3376931 B1 EP 3376931B1 EP 16784212 A EP16784212 A EP 16784212A EP 3376931 B1 EP3376931 B1 EP 3376931B1
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EP
European Patent Office
Prior art keywords
program
dishwasher
interior
gas
during
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Active
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EP16784212.9A
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German (de)
French (fr)
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EP3376931A1 (en
Inventor
Alfredo Calvimontes
Kai Paintner
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL16784212T priority Critical patent/PL3376931T3/en
Publication of EP3376931A1 publication Critical patent/EP3376931A1/en
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    • 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
    • A47L15/0057—Cleaning of machines parts, e.g. removal of deposits like lime scale or proteins from piping or tub
    • 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
    • A47L15/42—Details
    • A47L15/4276—Arrangements to detect or remove bad smells or odours
    • 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
    • A47L2401/34—Other automatic detections
    • 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
    • A47L2501/16—Sterilisers
    • 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
    • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit

Definitions

  • the present invention relates to a method for operating a dishwasher, wherein items to be washed arranged in an interior of the dishwasher are washed during a wash program. Furthermore, the present invention relates to such a dishwasher.
  • the dishwasher includes a control device or a control device.
  • the control device is set up to select a specific wash program from a plurality of predetermined wash programs, for example quick wash program, glass cleaning program, program for cleaning heavily encrusted items to be washed, automatic program, etc.
  • the control device also ensures that the individual program sections of the selected washing program, for example pre-wash, cleaning, final washing, rinsing or drying, are carried out in the correct order and in compliance with the desired operating parameters, such as temperature of the washing liquor, pause times in which no The wash water is circulated or discharged, cleaning agents are added, etc.
  • Conventional dishwashers are from the documents WO 2006/082552 A , JP 2008307164A , WO 2009/083391 A , EP 2 762 052 A1 , EP 2 762 053 A1 and DE 10 2005 058 662 A1 famous.
  • EP 0 509 328 A2 provides an environmental monitoring method capable of detecting a minute gas component for monitoring an environment and various systems including a gas detector.
  • the EP 0 509 328 A2 provide a method and various systems using the same method, in which a sensor for applying ultrasonic vibration to a thin film formed on a piezoelectric substrate measures the frequency change of a surface acoustic wave and is used to detect a minute gas with high sensitivity. The change of a material in an environment can be measured by using this gas sensor.
  • one object of the present invention is to improve the operation of a dishwasher.
  • a method for operating a dishwasher in which items to be washed arranged in an interior of the dishwasher are washed during a washing program.
  • the method comprises the steps: determining a quantity of at least one specific gas in the interior during the washing program, and starting a hygiene program and/or outputting a message to a user of the dishwasher regarding the start of the hygiene program depending on the determined quantity of the at least one specific gas gases.
  • the dishwasher is in particular a household dishwasher.
  • the specific gas or gases in the interior of the dishwasher it is possible to determine the type of soiling and/or the degree of soiling in the interior of the determine the dishwasher. Again, it is subsequently possible, depending on the specific type of soiling and/or the specific degree of soiling, to select and execute a suitable hygiene program from a plurality of prepared hygiene programs. This further maximizes the hygiene standard.
  • the use of the hygiene program during the wash program or immediately after the end of the wash program also results in an improved cleaning result for the items to be washed and energy savings.
  • the specific gas are methane, ethylene and butane.
  • a washing program includes one or more of the following phases: pre-wash, cleaning cycle, intermediate wash, final rinse and/or drying cycle.
  • the phases can be designed differently.
  • the method includes an adjustment of the flushing program as a function of the determined quantity of the at least one specific gas if the determined quantity is greater than a specific threshold value.
  • operating parameters of the wash program such as temperature of the wash liquor, pause times, addition of detergent, and so on, are adjusted when the wash program is adjusted.
  • the specific threshold value can be set by a user, in particular using an input device.
  • leftover mashed potatoes can be recognized as soiling.
  • the concentration of these residues can then be evaluated and, depending on this, the enzyme amylase can be applied in order to set the optimal operating parameters, in particular with regard to pH, concentration and temperature, in order to enable optimal purification.
  • milk residues and their concentration can be detected.
  • the enzyme protease can be used to enable optimal cleaning via regulated operating parameters.
  • a concentration of tea can be detected.
  • a bleaching agent for example sodium percarbonate or tetraacetylethylenediamine, can be applied to set optimized operating parameters so that optimal bleaching is enabled.
  • the method includes determining a respective quantity of a plurality of different specific gases in the interior using a plurality of different gas sensors during the flushing program.
  • a respective gas sensor can in particular detect a specific gas.
  • a specific gas for example, there are certain gas sensors for methane or butane.
  • the method includes: taking a sample of a gas mixture present in the interior during the flushing program, Supplying the sample of the gas mixture taken to a gas sensor container having a plurality of different gas sensors, and determining a respective quantity of a plurality of different specific gases by means of the gas sensors in the gas sensor container during the flushing program.
  • the sample of the gas mixture is taken from the interior or washing compartment of the dishwasher using warm or hot air.
  • the warm or hot air is generated, for example, by means of a heater and a fan.
  • the sample of the gas mixture can then be added to a concentration tank, which is followed by the gas sensor tank with the plurality of gas sensors.
  • the sample of the gas mixture located in the interior is taken during the flushing program using warm air.
  • the method includes determining a spectrum using the determined quantities of the plurality of different gases determined.
  • the method includes starting the hygiene program and/or issuing the instruction to the user of the dishwasher regarding the start of the hygiene program as a function of the spectrum determined.
  • VOC sensors are used as gas sensors.
  • a VOC sensor is a volatile organic compound sensor.
  • the spectrum is determined by means of pattern recognition using a neural network and a reference database.
  • the pattern recognition can be carried out, for example, by the dishwasher's control device, which executes the neural network using the determined spectrum and the reference data from the reference database.
  • determining the amount of the specific gas in the interior during the flushing program includes determining the absolute amount of the specific gas in the interior.
  • determining the quantity of the specific gas in the interior during the flushing program includes determining a change over time in the absolute quantity of the specific gas in the interior.
  • determining the quantity of the specific gas in the interior space during the flushing program includes determining a concentration of the specific gas in the interior space.
  • a computer program product such as a computer program means
  • a server in a network, for example, as a storage medium such as a memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file. This can be done, for example, in a wireless communication network by transferring a corresponding file with the computer program product or the computer program means.
  • a dishwasher in particular a domestic dishwasher, which has an interior space for receiving items to be washed and has a control device for carrying out a number of washing programs for washing the items to be washed.
  • the dishwasher comprises a gas sensor for determining a quantity of at least one specific gas in the interior during the washing program, a start unit for starting a hygiene program depending on the determined quantity of at least one specific gas and/or an output unit for outputting a message to a user of the Dishwasher relating to a start of the hygiene program depending on the determined amount of at least one specific gas.
  • the dishwasher comprises a plurality of different gas sensors for determining a plurality of different specific gases in the interior.
  • the dishwasher comprises a spectrometer for determining a spectrum using the determined amounts of the plurality of different gases determined.
  • the starter unit is integrated in the control device.
  • the output unit is integrated in the control device.
  • the respective unit for example the start unit or the output unit, can be implemented in terms of hardware and/or software.
  • the respective unit can be designed as a device or as part of a device, for example as a computer or as a microprocessor or as a control computer of a vehicle.
  • the respective unit can be designed as a computer program product, as a function, as a routine, as part of a program code or as an executable object.
  • the dishwasher 1 is in particular a domestic dishwasher.
  • the dishwasher 1 has an interior 2 .
  • the interior 2 includes in particular a washing compartment.
  • the interior 2 is set up to accommodate items to be washed.
  • the dishwasher 1 includes a control device 12 which is set up to control the execution of a number of washing programs for washing the items to be washed in the washing container 2 . Examples of a dishwasher 1 are in the figure 5 and 6 shown and explained in more detail below.
  • the first embodiment of the method according to 1 includes steps 101 and 102:
  • step 101 a quantity of at least one specific gas in the interior 2 or washing compartment of the dishwasher 1 is determined while the washing program is being carried out.
  • Determining 101 the amount of the specific gas in the interior 2 during the flushing program includes, for example, determining the absolute amount of the specific gas in the interior 2. Alternatively or additionally, a change over time in the absolute amount of the specific gas in the interior 2 can also be determined. Furthermore, alternatively or additionally, a concentration of the specific gas in the interior 2 can also be determined.
  • a hygiene program is started automatically in step 102 and/or a message is output to a user of the dishwasher 1 regarding the start of the hygiene program.
  • the automatic start of the hygiene program is preferably initiated by the control device 12 of the dishwasher 1 .
  • the dishwasher 1 includes, in particular, an output unit 15 (see FIG figure 5 ) which is set up to issue the notice to the user.
  • the output unit 15 includes in particular a screen, a touch screen and/or a loudspeaker.
  • the notice can be output optically and/or acoustically.
  • the note reads, for example: "Please start the hygiene program".
  • the dishwasher 1 can preferably include a predetermined starting means, for example a specific button or a specific switching element on a touch screen.
  • the start of the hygiene program can also be triggered by the user of the dishwasher 1 via voice input, for example.
  • the hygiene program includes, for example, a cleaning section, during which the items to be washed are exposed to water or a water/cleaning agent mixture. Additionally or alternatively, a hygiene tablet and/or a hygiene powder can be added during the hygiene program. Furthermore, active oxygen can additionally or alternatively be added to the interior 2 of the dishwasher 1 during the hygiene program. Furthermore, during the hygiene program, a salt can additionally or alternatively be added to the interior space 2, which brings about the hygiene function. Furthermore, during the hygiene program, a washing liquor located in the interior 2 can additionally or alternatively be cooled, in particular frozen, or warmed, in particular heated, during the hygiene program.
  • FIG 2 shows a second embodiment of a method for operating a dishwasher 1.
  • the second embodiment of FIG 2 comprises steps 201, 202 and 203. Steps 201 and 202 correspond to steps 101 and 102 of FIG 1 and will not be explained again for this reason.
  • step 203 the flushing program is adjusted as a function of the determined quantity of the at least one specific gas if the determined quantity is greater than a specific threshold value. This adjustment of the washing program is calculated and initiated in particular by the control device 12 of the dishwasher 1 .
  • the third embodiment of the 3 includes steps 301, 302 and 303:
  • step 301 a respective quantity of a plurality of different specific gases in the interior 2 is determined by means of a plurality of different gas sensors 13 (see 6 ) determined during the washing program.
  • step 302 a spectrum of the gas mixture located in the interior 2 is determined using the determined quantity of the plurality of different specific gases.
  • step 303 depending on the spectrum determined, the hygiene program is started automatically and/or the user is notified of the start of the hygiene program.
  • VOC sensors are used as gas sensors 13 .
  • the spectrum is determined in particular by means of pattern recognition using a neural network and a reference database.
  • the reference database stores the predetermined reference patterns of spectra.
  • the fourth embodiment of the 4 includes steps 401 to 405:
  • step 401 a sample of a gas mixture 17 (see FIG 6 ) removed.
  • the sample of the gas mixture 17 in the interior 2 is taken during the flushing program using warm air 16 .
  • the warm air 16 is generated in particular by means of a heater and is supplied to the interior 2 by means of ventilation or a blower.
  • step 402 the sample taken from the gas mixture 17 is supplied to a gas sensor container 19 having a plurality of different gas sensors 13 (see FIG 6 ).
  • step 403 a respective quantity of a plurality of different specific gases is determined by means of the gas sensors 13 in the gas sensor container 19 during the flushing program.
  • step 404 a spectrum is determined using the determined amount of the plurality of different gases.
  • a spectrometer 21 is used for this purpose, for example (see 6 ).
  • step 405 depending on the spectrum determined, the start of the hygiene program is automatically initiated and/or a message is output to the user of the dishwasher 1 regarding the start of the hygiene program. The user can then initiate the start of the hygiene program himself.
  • FIG 5 shows a perspective view of an embodiment of a dishwasher 1.
  • the dishwasher 1 is in particular a domestic dishwasher.
  • the dishwasher 1 has an interior space 2, in particular a washing tub, for accommodating items to be washed.
  • the dishwasher 1 also has a body enclosing the washing container 2 and a door 3 .
  • the washing container 2 and the door 3 form a washing chamber 4 for washing items to be washed.
  • Door 3 is in 1 shown in their open position. By pivoting about a pivot axis S provided at a lower end of the door 3, the door 3 can be closed or opened.
  • the washing compartment 2 is cuboid, for example, and can comprise a floor 5, a cover 6 opposite the floor 5, a rear wall 7 opposite the door 3, and two side walls 8, 9 opposite one another.
  • the side walls 8, 9 can be made of stainless steel sheet.
  • the dishwasher 1 also has at least one loading level 10 .
  • the at least one loading level 10 is preferably a washware receptacle of the dishwasher 1.
  • multiple loading levels 10 can be provided, which can include a lower basket, an upper basket and/or a cutlery drawer.
  • the multiple loading levels 10 are preferably arranged one above the other in the washing compartment 2 .
  • Each loading level 10 can be moved either in a push-in direction E into the washing compartment 2 or in a pull-out direction A out of it.
  • a rail 11 is preferably provided on both sides of a respective loading level 10 .
  • a control device 12 optionally provided in the body or in the door 3 of the dishwasher 1 is set up to control the sequence of wash programs for washing items to be washed.
  • the dishwasher 1 comprises at least one gas sensor 13, a starting unit 14 and a dispensing unit 15.
  • the starting unit 14 and the dispensing unit 15 are integrated in the control device 12 in particular.
  • the gas sensor 13 is set up to determine a quantity of at least one specific gas in the interior 2 during the flushing program.
  • the start unit 13 is set up to start a hygiene program depending on the determined quantity of the at least one specific gas.
  • the output unit 15 is set up to output an indication to a user of the dishwasher regarding the start of the hygiene program as a function of the determined quantity of the at least one specific gas.
  • the dishwasher 1 includes a plurality of different gas sensors 13 (see FIG 6 ) for determining a plurality of different specific gases in the interior 2.
  • the reference number 16 in the 6 denotes warm air, which is used to take a sample of a gas mixture 17 from the interior 2 during the flushing program.
  • the warm air 16 is generated by means of a heater, for example, and is fed to the washing container 2 by means of a blower.
  • the sample of the gas mixture 17 is fed to a concentration container 18 by means of the warm air 16 .
  • the gas mixture 17 in the concentration tank 18 is then fed to a gas sensor tank 19 which contains a plurality of different gas sensors 13 .
  • the gas sensor container 19 nine different gas sensors 13, which are arranged in a matrix. The different gas sensors 13 analyze the complex mixture of molecules of the gas mixture 17.
  • the output of the different gas sensors 13 are signals 20 or a signal pattern which describe the molecular composition of the gas mixture 17. These signals 20 are fed to a computing unit 21, which in particular also includes a spectrometer.
  • the computing unit 21 determines a spectrum 23 of the gas mixture 17 based on the signals 20.
  • the computing unit 21 can use reference patterns, which are stored in a reference database 22.
  • the computing unit 21 can determine the spectrum by means of pattern recognition using a neural network and the reference database 22 .
  • Spectrum 23 determined is fed to control device 12 of dishwasher 1 .
  • the control device 12 can start the hygiene program automatically or cause a message to be output to the user of the dishwasher 1 .
  • the control device 12 can adapt the flushing program depending on the spectrum 23 . This adjustment is shown as a feedback path with the reference number 24 in FIG 6 illustrated.

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  • Washing And Drying Of Tableware (AREA)
  • Sampling And Sample Adjustment (AREA)

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Betreiben einer Geschirrspülmaschine, wobei während eines Spülprogramms ein Spülen von in einem Innenraum der Geschirrspülmaschine angeordnetem Spülgut erfolgt. Des Weiteren betrifft die vorliegende Erfindung eine solche Geschirrspülmaschine.The present invention relates to a method for operating a dishwasher, wherein items to be washed arranged in an interior of the dishwasher are washed during a wash program. Furthermore, the present invention relates to such a dishwasher.

Zur Steuerung der Durchführung der Spülprogramme umfasst die Geschirrspülmaschine eine Steuerungsvorrichtung oder ein Steuergerät. In Abhängigkeit von einer Eingabe eines Benutzers der Geschirrspülmaschine ist die Steuerungsvorrichtung dazu eingerichtet, ein bestimmtes Spülprogramm aus einer Mehrzahl vorbestimmter Spülprogramme, zum Beispiel Schnellspülprogramm, Gläserreinigungsprogramm, Programm zur Reinigung von stark verkrustetem Spülgut, Automatikprogramm, etc., auszuwählen. Insbesondere stellt die Steuerungsvorrichtung hierbei auch sicher, dass die einzelnen Programmabschnitte des jeweils ausgewählten Spülprogramms, zum Beispiel Vorspülen, Reinigen, Nachspülen, Klarspülen oder Trocknen, in der korrekten Reihenfolge und unter Einhaltung der gewünschten Betriebsparameter, wie Temperatur der Spülflotte, Pausenzeiten, in denen kein Umwälzen oder Abführen der Spülflotte erfolgt, Zugabe von Reinigungsmitteln, etc., durchgeführt werden.To control the execution of the washing programs, the dishwasher includes a control device or a control device. Depending on an input from a user of the dishwasher, the control device is set up to select a specific wash program from a plurality of predetermined wash programs, for example quick wash program, glass cleaning program, program for cleaning heavily encrusted items to be washed, automatic program, etc. In particular, the control device also ensures that the individual program sections of the selected washing program, for example pre-wash, cleaning, final washing, rinsing or drying, are carried out in the correct order and in compliance with the desired operating parameters, such as temperature of the washing liquor, pause times in which no The wash water is circulated or discharged, cleaning agents are added, etc.

Allerdings kann es zu einem ungewünschten Bakterienwachstum innerhalb der Geschirrspülmaschine kommen, welcher schließlich zu einer geruchlichen Belästigung oder sogar zur einer Gesundheitsgefährdung des Benutzers der Geschirrspülmaschine führen kann, insbesondere, wenn die Geschirrspülmaschine längere Zeit in beladenem Zustand, das heißt teilweise oder vollständig mit verunreinigtem Spülgut befüllt, steht, ohne dass ein Spülprogramm durchgeführt wird.However, unwanted bacterial growth can occur inside the dishwasher, which can ultimately lead to an odor nuisance or even to a health hazard for the user of the dishwasher, especially if the dishwasher is loaded for a long time, i.e. partially or completely filled with dirty dishes , is displayed without a wash program being carried out.

Herkömmliche Geschirrspülmaschinen sind aus den Dokumenten WO 2006/082552 A , JP 2008307164 A , WO 2009/083391 A , EP 2 762 052 A1 , EP 2 762 053 A1 und DE 10 2005 058 662 A1 bekannt.Conventional dishwashers are from the documents WO 2006/082552 A , JP 2008307164A , WO 2009/083391 A , EP 2 762 052 A1 , EP 2 762 053 A1 and DE 10 2005 058 662 A1 famous.

Weiterer Stand der Technik wird durch das Dokument EP 0 509 328 A2 , welches ein Verfahren zur Umweltüberwachung, welches in der Lage ist, eine winzige Gaskomponente zur Überwachung einer Umgebung zu erfassen, und verschiedene Systeme einschließlich eines Gasdetektors bereitstellt, gebildet. Bei der EP 0 509 328 A2 werden ein Verfahren und verschiedene Systeme unter Verwendung des gleichen Verfahrens bereitgestellt, in denen ein Sensor zum Anlegen einer Ultraschallschwingung an einen auf einem piezoelektrischen Substrat ausgebildeten Dünnfilm die Frequenzänderung einer Oberflächenakustikwelle misst und dazu verwendet wird, um ein winziges Gas mit hoher Empfindlichkeit zu erfassen. Die Änderung eines Materials in einer Umgebung kann durch Verwendung dieses Gassensors gemessen werden.Further prior art is provided by the document EP 0 509 328 A2 which provides an environmental monitoring method capable of detecting a minute gas component for monitoring an environment and various systems including a gas detector. In the EP 0 509 328 A2 provide a method and various systems using the same method, in which a sensor for applying ultrasonic vibration to a thin film formed on a piezoelectric substrate measures the frequency change of a surface acoustic wave and is used to detect a minute gas with high sensitivity. The change of a material in an environment can be measured by using this gas sensor.

Vor diesem Hintergrund besteht eine Aufgabe der vorliegenden Erfindung darin, das Betreiben einer Geschirrspülmaschine zu verbessern.Against this background, one object of the present invention is to improve the operation of a dishwasher.

Demgemäß wird Verfahren zum Betreiben einer Geschirrspülmaschine vorgeschlagen, bei welchem während eines Spülprogramms ein Spülen von in einem Innenraum der Geschirrspülmaschine angeordnetem Spülgut erfolgt. Das Verfahren umfasst die Schritte: Ermitteln einer Menge zumindest eines bestimmten Gases in dem Innenraum während des Spülprogramms, und Starten eines Hygieneprogramms und/oder Ausgeben eines Hinweises an einen Benutzer der Geschirrspülmaschine betreffend einen Start des Hygieneprogramms in Abhängigkeit von der ermittelten Menge des zumindest einen bestimmten Gases. Die Geschirrspülmaschine ist insbesondere eine Haushalts-Geschirrspülmaschine.Accordingly, a method for operating a dishwasher is proposed, in which items to be washed arranged in an interior of the dishwasher are washed during a washing program. The method comprises the steps: determining a quantity of at least one specific gas in the interior during the washing program, and starting a hygiene program and/or outputting a message to a user of the dishwasher regarding the start of the hygiene program depending on the determined quantity of the at least one specific gas gases. The dishwasher is in particular a household dishwasher.

Durch das Ermitteln des Gases oder der Gase schon während des Spülprogramms ist es möglich, das Hygieneprogramm auch schon während des Spülprogramms oder sofort nach Abschluss des Spülprogramms zu starten. Hierdurch werden eine bakterielle Kontaminierung des Innenraums der Geschirrspülmaschine und eine daraus entstehende geruchliche Belästigung für den Benutzer der Geschirrspülmaschine minimiert. Damit ist es möglich, einen höheren Hygienestandard zu erreichen.By determining the gas or gases during the wash cycle, it is possible to start the hygiene program during the wash cycle or immediately after the wash cycle is complete. This minimizes bacterial contamination of the interior of the dishwasher and any resulting odor nuisance for the user of the dishwasher. This makes it possible to achieve a higher standard of hygiene.

In Abhängigkeit der ermittelten Menge des bestimmten Gases oder der bestimmten Gase in dem Innenraum der Geschirrspülmaschine ist es möglich, die Verschmutzungsart und/oder den Verschmutzungsgrad der Verschmutzung in dem Innenraum der Geschirrspülmaschine zu bestimmen. Wiederum ist es in der Folge möglich, in Abhängigkeit der bestimmten Verschmutzungsart und/oder des bestimmten Verschmutzungsgrads ein geeignetes Hygieneprogramm aus einer Mehrzahl vorbereiteter Hygieneprogramme auszuwählen und auszuführen. Hierdurch wird der Hygienestandard weiter maximiert. Der Einsatz des Hygieneprogramms schon während des Spülprogramms oder sofort nach Abschluss des Spülprogramms bewirkt auch ein verbessertes Reinigungsergebnis des Spülguts und sowie Energieeinsparungen. Beispiele für das bestimmte Gas sind Methan, Ethylen und Butan.Depending on the determined quantity of the specific gas or gases in the interior of the dishwasher, it is possible to determine the type of soiling and/or the degree of soiling in the interior of the determine the dishwasher. Again, it is subsequently possible, depending on the specific type of soiling and/or the specific degree of soiling, to select and execute a suitable hygiene program from a plurality of prepared hygiene programs. This further maximizes the hygiene standard. The use of the hygiene program during the wash program or immediately after the end of the wash program also results in an improved cleaning result for the items to be washed and energy savings. Examples of the specific gas are methane, ethylene and butane.

Insbesondere umfasst ein Spülprogramm eine oder mehrere der folgenden Phasen: Vorspülen, Reinigungsgang, Zwischenspülen, Klarspülen und/oder Trocknungsgang. Bei unterschiedlichen Spülprogrammen können die Phasen unterschiedlich ausgebildet sein.In particular, a washing program includes one or more of the following phases: pre-wash, cleaning cycle, intermediate wash, final rinse and/or drying cycle. With different washing programs, the phases can be designed differently.

Gemäß einer Ausführungsform umfasst das Verfahren ein Anpassen des Spülprogramms in Abhängigkeit von der ermittelten Menge des zumindest einen bestimmten Gases, falls die ermittelte Menge größer als ein bestimmter Schwellwert ist.According to one embodiment, the method includes an adjustment of the flushing program as a function of the determined quantity of the at least one specific gas if the determined quantity is greater than a specific threshold value.

Insbesondere werden bei der Anpassung des Spülprogramms Betriebsparameter des Spülprogramms, wie Temperatur der Spülflotte, Pausenzeiten, Zugabe von Reinigungsmittel, und so weiter, angepasst. Des Weiteren ist es auch möglich, in Abhängigkeit von der ermittelten Menge des zumindest einen bestimmten Gases ein neues Spülprogramm zu bauen, insbesondere hinsichtlich der Zusammensetzung von Reinigungsmitteln, eines Temperaturverlaufes oder der Zugabe von Bleichmitteln. Der bestimmte Schwellwert kann insbesondere mittels einer Eingabevorrichtung durch einen Benutzer eingestellt werden.In particular, operating parameters of the wash program, such as temperature of the wash liquor, pause times, addition of detergent, and so on, are adjusted when the wash program is adjusted. Furthermore, it is also possible to set up a new flushing program depending on the determined quantity of at least one specific gas, in particular with regard to the composition of cleaning agents, a temperature profile or the addition of bleaching agents. The specific threshold value can be set by a user, in particular using an input device.

Beispielsweise können Kartoffelbreireste als Anschmutzung erkannt werden. Die Konzentration dieser Reste kann dann ausgewertet werden und in Abhängigkeit davon kann das Enzym Amylase angewendet werden, um die optimalen Betriebsparameter insbesondere hinsichtlich des pH-Wertes, der Konzentration und der Temperatur einzustellen, um eine optimale Reinigung zu ermöglichen.For example, leftover mashed potatoes can be recognized as soiling. The concentration of these residues can then be evaluated and, depending on this, the enzyme amylase can be applied in order to set the optimal operating parameters, in particular with regard to pH, concentration and temperature, in order to enable optimal purification.

Des Weiteren können Milchreste und deren Konzentration erkannt werden. In Abhängigkeit der Konzentration der Milchreste kann das Enzym Protease angewendet werden, um über geregelte Betriebsparameter eine optimale Reinigung zu ermöglichen.Furthermore, milk residues and their concentration can be detected. Depending on the concentration of the milk residues, the enzyme protease can be used to enable optimal cleaning via regulated operating parameters.

Des Weiteren kann eine Konzentration von Tee erkannt werden. In Abhängigkeit der erkannten Konzentration von Tee kann ein Bleichmittel, zum Beispiel Natriumpercarbonat oder Tetraacetylethylendiamin angewendet werden, um optimierte Betriebsparamater einzustellen, so dass ein optimales Bleichen ermöglicht wird.Furthermore, a concentration of tea can be detected. Depending on the detected concentration of tea, a bleaching agent, for example sodium percarbonate or tetraacetylethylenediamine, can be applied to set optimized operating parameters so that optimal bleaching is enabled.

Gemäß einer weiteren Ausführungsform umfasst das Verfahren ein Ermitteln einer jeweiligen Menge einer Mehrzahl unterschiedlicher bestimmter Gase in dem Innenraum mittels einer Mehrzahl unterschiedlicher Gassensoren während des Spülprogramms.According to a further embodiment, the method includes determining a respective quantity of a plurality of different specific gases in the interior using a plurality of different gas sensors during the flushing program.

Ein jeweiliger Gassensor kann insbesondere ein bestimmtes Gas detektieren. So existieren beispielsweise bestimmte Gassensoren für Methane oder Butane.A respective gas sensor can in particular detect a specific gas. For example, there are certain gas sensors for methane or butane.

Gemäß einer weiteren Ausführungsform umfasst das Verfahren:
Entnehmen einer Probe eines während des Spülprogramms in dem Innenraum befindlichen Gasgemisches,
Zuführen der entnommenen Probe des Gasgemisches einem eine Mehrzahl von unterschiedlichen Gassensoren aufweisenden Gassensoren-Behälters, und Ermitteln einer jeweiligen Menge einer Mehrzahl unterschiedlicher bestimmter Gase mittels der Gassensoren in dem Gassensoren-Behälter während des Spülprogramms.According to another embodiment, the method includes:
taking a sample of a gas mixture present in the interior during the flushing program,
Supplying the sample of the gas mixture taken to a gas sensor container having a plurality of different gas sensors, and determining a respective quantity of a plurality of different specific gases by means of the gas sensors in the gas sensor container during the flushing program.

Beispielsweise wird die Probe des Gasgemisches mittels warmer oder heißer Luft aus dem Innenraum oder Spülbehälter der Geschirrspülmaschine entnommen. Die warme oder heiße Luft wird beispielsweise mittels einer Heizung und eines Gebläses generiert. Die Probe des Gasgemisches kann dann einem Konzentrationsbehälter zugefügt werden, welchem der Gassensoren-Behälter mit der Mehrzahl von Gassensoren nachgeordnet ist.For example, the sample of the gas mixture is taken from the interior or washing compartment of the dishwasher using warm or hot air. The warm or hot air is generated, for example, by means of a heater and a fan. The sample of the gas mixture can then be added to a concentration tank, which is followed by the gas sensor tank with the plurality of gas sensors.

Gemäß einer weiteren Ausführungsform wird die Probe des in dem Innenraum befindlichen Gasgemisches während des Spülprogramms unter Verwendung von warmer Luft entnommen.According to a further embodiment, the sample of the gas mixture located in the interior is taken during the flushing program using warm air.

Gemäß einer weiteren Ausführungsform umfasst das Verfahren ein Bestimmen eines Spektrums mittels der ermittelten Mengen der Mehrzahl unterschiedlicher bestimmter Gase.According to a further embodiment, the method includes determining a spectrum using the determined quantities of the plurality of different gases determined.

Gemäß einer weiteren Ausführungsform umfasst das Verfahren ein Starten des Hygieneprogramms und/oder Ausgeben des Hinweises an den Benutzer der Geschirrspülmaschine betreffend den Start des Hygieneprogramms in Abhängigkeit von dem bestimmten Spektrum.According to a further embodiment, the method includes starting the hygiene program and/or issuing the instruction to the user of the dishwasher regarding the start of the hygiene program as a function of the spectrum determined.

Gemäß einer weiteren Ausführungsform werden als Gassensoren VOC-Sensoren verwendet. Ein VOC-Sensor ist ein Volatile-Organic-Compound-Sensor.According to a further embodiment, VOC sensors are used as gas sensors. A VOC sensor is a volatile organic compound sensor.

Gemäß einer weiteren Ausführungsform wird das Spektrum mittels einer Mustererkennung unter Verwendung eines neuronalen Netzwerkes und einer Referenzdatenbank bestimmt.According to a further embodiment, the spectrum is determined by means of pattern recognition using a neural network and a reference database.

Die Mustererkennung kann beispielsweise durch die Steuerungsvorrichtung der Geschirrspülmaschine ausgeführt werden, welche das neuronale Netzwerk unter Verwendung des bestimmten Spektrums und der Referenzdaten aus der Referenzdatenbank ausführt.The pattern recognition can be carried out, for example, by the dishwasher's control device, which executes the neural network using the determined spectrum and the reference data from the reference database.

Gemäß einer weiteren Ausführungsform umfasst das Ermitteln der Menge des bestimmten Gases in dem Innenraum während des Spülprogramms ein Ermitteln der Absolutmenge des bestimmten Gases in dem Innenraum.According to a further embodiment, determining the amount of the specific gas in the interior during the flushing program includes determining the absolute amount of the specific gas in the interior.

Gemäß einer weiteren Ausführungsform umfasst das Ermitteln der Menge des bestimmten Gases in dem Innenraum während des Spülprogramms ein Ermitteln einer zeitlichen Änderung der Absolutmenge des bestimmten Gases in dem Innenraum.According to a further embodiment, determining the quantity of the specific gas in the interior during the flushing program includes determining a change over time in the absolute quantity of the specific gas in the interior.

Gemäß einer weiteren Ausführungsform umfasst das Ermitteln der Menge des bestimmten Gases in dem Innenraum während des Spülprogramms ein Ermitteln einer Konzentration des bestimmten Gases in dem Innenraum.According to a further embodiment, determining the quantity of the specific gas in the interior space during the flushing program includes determining a concentration of the specific gas in the interior space.

Weiterhin wird ein Computerprogrammprodukt vorgeschlagen, welches auf einer programmgesteuerten Einrichtung die Durchführung des wie oben erläuterten Verfahrens veranlasst.Furthermore, a computer program product is proposed which causes the method explained above to be carried out on a program-controlled device.

Ein Computerprogrammprodukt, wie z.B. ein Computerprogramm-Mittel, kann beispielsweise als Speichermedium, wie z.B. Speicherkarte, USB-Stick, CD-ROM, DVD, oder auch in Form einer herunterladbaren Datei von einem Server in einem Netzwerk bereitgestellt oder geliefert werden. Dies kann zum Beispiel in einem drahtlosen Kommunikationsnetzwerk durch die Übertragung einer entsprechenden Datei mit dem Computerprogrammprodukt oder dem Computerprogramm-Mittel erfolgen.A computer program product, such as a computer program means, can be made available or supplied by a server in a network, for example, as a storage medium such as a memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file. This can be done, for example, in a wireless communication network by transferring a corresponding file with the computer program product or the computer program means.

Außerdem wird eine Geschirrspülmaschine, insbesondere eine Haushalts- Geschirrspülmaschine, vorgeschlagen, welche einen Innenraum zum Aufnehmen von Spülgut und eine Steuerungsvorrichtung zum Durchführen einer Anzahl von Spülprogrammen zum Spülen des Spülguts aufweist. Die Geschirrspülmaschine umfasst einen Gassensor zum Ermitteln einer Menge zumindest eines bestimmten Gases in dem Innenraum während des Spülprogramms, eine Starteinheit zum Starten eines Hygieneprogramms in Abhängigkeit von der ermittelten Menge des zumindest einem bestimmten Gases und/oder eine Ausgabeeinheit zum Ausgeben eines Hinweises an einen Benutzer der Geschirrspülmaschine betreffend einen Start des Hygieneprogramms in Abhängigkeit von der ermittelten Menge des zumindest einem bestimmten Gases.In addition, a dishwasher, in particular a domestic dishwasher, is proposed which has an interior space for receiving items to be washed and has a control device for carrying out a number of washing programs for washing the items to be washed. The dishwasher comprises a gas sensor for determining a quantity of at least one specific gas in the interior during the washing program, a start unit for starting a hygiene program depending on the determined quantity of at least one specific gas and/or an output unit for outputting a message to a user of the Dishwasher relating to a start of the hygiene program depending on the determined amount of at least one specific gas.

Gemäß einer Ausführungsform umfasst die Geschirrspülmaschine eine Mehrzahl unterschiedlicher Gassensoren zum Ermitteln einer Mehrzahl unterschiedlicher bestimmter Gase in dem Innenraum.According to one embodiment, the dishwasher comprises a plurality of different gas sensors for determining a plurality of different specific gases in the interior.

Gemäß einer weiteren Ausführungsform umfasst die Geschirrspülmaschine ein Spektrometer zum Bestimmen eines Spektrums mittels der ermittelten Mengen der Mehrzahl unterschiedlicher bestimmter Gase.According to a further embodiment, the dishwasher comprises a spectrometer for determining a spectrum using the determined amounts of the plurality of different gases determined.

Gemäß einer weiteren Ausführungsform ist die Starteinheit in der Steuerungsvorrichtung integriert.According to a further embodiment, the starter unit is integrated in the control device.

Gemäß einer weiteren Ausführungsform ist die Ausgabeeinheit in der Steuerungsvorrichtung integriert.According to a further embodiment, the output unit is integrated in the control device.

Die jeweilige Einheit, zum Beispiel Starteinheit oder die Ausgabeeinheit, kann hardwaretechnisch und/oder auch softwaretechnisch implementiert sein. Bei einer hardwaretechnischen Implementierung kann die jeweilige Einheit als Vorrichtung oder als Teil einer Vorrichtung, zum Beispiel als Computer oder als Mikroprozessor oder als Steuerrechner eines Fahrzeuges ausgebildet sein. Bei einer softwaretechnischen Implementierung kann die jeweilige Einheit als Computerprogrammprodukt, als eine Funktion, als eine Routine, als Teil eines Programmcodes oder als ausführbares Objekt ausgebildet sein.The respective unit, for example the start unit or the output unit, can be implemented in terms of hardware and/or software. In the case of a hardware implementation, the respective unit can be designed as a device or as part of a device, for example as a computer or as a microprocessor or as a control computer of a vehicle. In the case of a software implementation, the respective unit can be designed as a computer program product, as a function, as a routine, as part of a program code or as an executable object.

Die für das vorgeschlagene Verfahren beschriebenen Ausführungsformen und Merkmale gelten die vorgeschlagene Vorrichtung entsprechend.The embodiments and features described for the proposed method apply accordingly to the proposed device.

Weitere mögliche Implementierungen der Erfindung umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezüglich der Ausführungsbeispiele beschriebenen Merkmale oder Ausführungsformen. Dabei wird der Fachmann auch Einzelaspekte als Verbesserungen oder Ergänzungen zu der jeweiligen Grundform der Erfindung hinzufügen.Further possible implementations of the invention also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.

Weitere vorteilhafte Ausgestaltungen und Aspekte der Erfindung sind Gegenstand der Unteransprüche sowie der im Folgenden beschriebenen Ausführungsbeispiele der Erfindung. Im Weiteren wird die Erfindung anhand von bevorzugten Ausführungsformen unter Bezugnahme auf die beigelegten Figuren näher erläutert.

Fig. 1
zeigt ein erstes Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine;
Fig. 2
zeigt ein zweites Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine;
Fig. 3
zeigt ein drittes Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine;
Fig. 4
zeigt ein viertes Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine;
Fig. 5
zeigt eine Perspektivansicht einer Ausführungsform einer Geschirrspülmaschine; und
Fig. 6
zeigt ein schematisches Blockschaltbild einer weiteren Ausführungsform einer Geschirrspülmaschine.
Further advantageous refinements and aspects of the invention are the subject matter of the dependent claims and of the exemplary embodiments of the invention described below. The invention is explained in more detail below on the basis of preferred embodiments with reference to the enclosed figures.
1
shows a first exemplary embodiment of a method for operating a dishwasher;
2
shows a second exemplary embodiment of a method for operating a dishwasher;
3
shows a third exemplary embodiment of a method for operating a dishwasher;
4
shows a fourth exemplary embodiment of a method for operating a dishwasher;
figure 5
shows a perspective view of an embodiment of a dishwasher; and
6
shows a schematic block diagram of a further embodiment of a dishwasher.

In den Figuren sind gleiche oder funktionsgleiche Elemente mit denselben Bezugszeichen versehen worden, sofern nichts anderes angegeben ist.Elements that are the same or have the same function have been provided with the same reference symbols in the figures, unless otherwise stated.

In Fig. 1 ist ein erstes Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine 1 dargestellt.In 1 a first exemplary embodiment of a method for operating a dishwasher 1 is shown.

Die Geschirrspülmaschine 1 ist insbesondere eine Haushalts-Geschirrspülmaschine. Die Geschirrspülmaschine 1 weist einen Innenraum 2 auf. Der Innenraum 2 umfasst insbesondere einen Spülbehälter. Der Innenraum 2 ist zum Aufnehmen von Spülgut eingerichtet. Des Weiteren umfasst die Geschirrspülmaschine 1 eine Steuerungsvorrichtung 12, welche dazu eingerichtet ist, die Durchführung einer Anzahl von Spülprogrammen zum Spülen des Spülguts in dem Spülbehälter 2 zu steuern. Beispiele einer Geschirrspülmaschine 1 sind in den Fig. 5 und 6 dargestellt und werden im Folgenden näher erläutert.The dishwasher 1 is in particular a domestic dishwasher. The dishwasher 1 has an interior 2 . The interior 2 includes in particular a washing compartment. The interior 2 is set up to accommodate items to be washed. Furthermore, the dishwasher 1 includes a control device 12 which is set up to control the execution of a number of washing programs for washing the items to be washed in the washing container 2 . Examples of a dishwasher 1 are in the figure 5 and 6 shown and explained in more detail below.

Das erste Ausführungsbeispiel des Verfahrens gemäß Fig. 1 umfasst die Schritt 101 und 102:
In Schritt 101 wird eine Menge zumindest eines bestimmten Gases in dem Innenraum 2 oder Spülbehälter der Geschirrspülmaschine 1 während der Durchführung des Spülprogramms ermittelt. Das Ermitteln 101 der Menge des bestimmten Gases in dem Innenraum 2 während des Spülprogramms umfasst beispielsweise ein Ermitteln der Absolutmenge des bestimmten Gases in dem Innenraum 2. Alternativ oder zusätzlich kann auch eine zeitliche Änderung der Absolutmenge des bestimmten Gases in dem Innenraum 2 bestimmt werden. Des Weiteren kann alternativ oder zusätzlich auch eine Konzentration des bestimmten Gases in dem Innenraum 2 bestimmt werden.The first embodiment of the method according to 1 includes steps 101 and 102:
In step 101, a quantity of at least one specific gas in the interior 2 or washing compartment of the dishwasher 1 is determined while the washing program is being carried out. Determining 101 the amount of the specific gas in the interior 2 during the flushing program includes, for example, determining the absolute amount of the specific gas in the interior 2. Alternatively or additionally, a change over time in the absolute amount of the specific gas in the interior 2 can also be determined. Furthermore, alternatively or additionally, a concentration of the specific gas in the interior 2 can also be determined.

In Abhängigkeit von der ermittelten Menge des zumindest einen bestimmten Gases in dem Innenraum 2 wird in Schritt 102 ein Hygieneprogramm automatisch gestartet und/oder ein Hinweis wird an einen Benutzer der Geschirrspülmaschine 1 betreffend einen Start des Hygieneprogramms ausgegeben. Der automatische Start des Hygieneprogramms wird vorzugsweise von der Steuerungsvorrichtung 12 der Geschirrspülmaschine 1 veranlasst. Zum Ausgeben des Hinweises an den Benutzer umfasst die Geschirrspülmaschine 1 insbesondere eine Ausgabeeinheit 15 (siehe Fig. 5), welche dazu eingerichtet ist, den Hinweis an den Benutzer auszugeben. Die Ausgabeeinheit 15 umfasst insbesondere einen Bildschirm, einen Touchscreen und/oder einen Lautsprecher. Der Hinweis kann optisch und/oder akustisch ausgegeben werden. Der Hinweis lautet beispielsweise: "Bitte starten Sie das Hygieneprogramm". Zum Start des Hygieneprogramms kann die Geschirrspülmaschine 1 vorzugsweise ein vorbestimmtes Startmittel, beispielsweise einen bestimmten Knopf oder ein bestimmtes Schaltelement auf einem Touchscreen umfassen. Der Start des Hygieneprogramms kann von dem Benutzer der Geschirrspülmaschine 1 beispielsweise auch über eine Spracheingabe getriggert werden.Depending on the determined amount of at least one specific gas in the interior 2, a hygiene program is started automatically in step 102 and/or a message is output to a user of the dishwasher 1 regarding the start of the hygiene program. The automatic start of the hygiene program is preferably initiated by the control device 12 of the dishwasher 1 . In order to output the information to the user, the dishwasher 1 includes, in particular, an output unit 15 (see FIG figure 5 ) which is set up to issue the notice to the user. The output unit 15 includes in particular a screen, a touch screen and/or a loudspeaker. The notice can be output optically and/or acoustically. The note reads, for example: "Please start the hygiene program". To start the hygiene program, the dishwasher 1 can preferably include a predetermined starting means, for example a specific button or a specific switching element on a touch screen. The start of the hygiene program can also be triggered by the user of the dishwasher 1 via voice input, for example.

Das Hygieneprogramm umfasst beispielsweise einen Reinigungsabschnitt, währenddessen das Spülgut mit Wasser oder einer Wasser-Reinigungsmittelmischung beaufschlagt wird. Zusätzlich oder alternativ kann während des Hygieneprogramms eine Hygienetablette und/oder ein Hygienepulver zugegeben werden. Ferner kann zusätzlich oder alternativ während des Hygieneprogramms Aktivsauerstoff in den Innenraum 2 der Geschirrspülmaschine 1 zugegeben werden. Des Weiteren kann während des Hygieneprogramms zusätzlich oder alternativ dem Innenraum 2 ein Salz zugegeben werden, welches die Hygienefunktion bewirkt. Des Weiteren kann während des Hygieneprogramms zusätzlich oder alternativ eine in dem Innenraum 2 befindliche Spülflotte während des Hygieneprogramms gekühlt, insbesondere gefrostet, oder erwärmt, insbesondere erhitzt, werden.The hygiene program includes, for example, a cleaning section, during which the items to be washed are exposed to water or a water/cleaning agent mixture. Additionally or alternatively, a hygiene tablet and/or a hygiene powder can be added during the hygiene program. Furthermore, active oxygen can additionally or alternatively be added to the interior 2 of the dishwasher 1 during the hygiene program. Furthermore, during the hygiene program, a salt can additionally or alternatively be added to the interior space 2, which brings about the hygiene function. Furthermore, during the hygiene program, a washing liquor located in the interior 2 can additionally or alternatively be cooled, in particular frozen, or warmed, in particular heated, during the hygiene program.

Fig. 2 zeigt ein zweites Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine 1. Das zweite Ausführungsbeispiel der Fig. 2 umfasst die Schritte 201, 202 und 203. Die Schritte 201 und 202 entsprechen den Schritten 101 und 102 der Fig. 1 und werden aus diesem Grund nicht erneut erläutert. 2 shows a second embodiment of a method for operating a dishwasher 1. The second embodiment of FIG 2 comprises steps 201, 202 and 203. Steps 201 and 202 correspond to steps 101 and 102 of FIG 1 and will not be explained again for this reason.

In Schritt 203 wird das Spülprogramm in Abhängigkeit von der ermittelten Menge des zumindest einem bestimmten Gases abgepasst, falls die ermittelte Menge größer als ein bestimmter Schwellwert ist. Diese Anpassung des Spülprogramms wird insbesondere von der Steuerungsvorrichtung 12 der Geschirrspülmaschine 1 berechnet und veranlasst.In step 203, the flushing program is adjusted as a function of the determined quantity of the at least one specific gas if the determined quantity is greater than a specific threshold value. This adjustment of the washing program is calculated and initiated in particular by the control device 12 of the dishwasher 1 .

In Fig. 3 ist ein drittes Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine dargestellt.In 3 a third exemplary embodiment of a method for operating a dishwasher is shown.

Das dritte Ausführungsbeispiel der Fig. 3 umfasst die Schritte 301, 302 und 303:
In Schritt 301 wird eine jeweilige Menge einer Mehrzahl unterschiedlicher bestimmter Gase in dem Innenraum 2 mittels einer Mehrzahl unterschiedlicher Gassensoren 13 (siehe Fig. 6) während des Spülprogramms ermittelt.The third embodiment of the 3 includes steps 301, 302 and 303:
In step 301, a respective quantity of a plurality of different specific gases in the interior 2 is determined by means of a plurality of different gas sensors 13 (see 6 ) determined during the washing program.

In Schritt 302 wird ein Spektrum des sich im Innenraum 2 befindlichen Gasgemisches mittels der ermittelten Menge der Mehrzahl unterschiedlicher bestimmter Gase bestimmt.In step 302, a spectrum of the gas mixture located in the interior 2 is determined using the determined quantity of the plurality of different specific gases.

In Schritt 303 wird in Abhängigkeit von dem bestimmten Spektrum das Hygieneprogramm automatisch gestartet und/oder der Hinweis an den Benutzer betreffend den Start des Hygieneprogramms ausgegeben.In step 303, depending on the spectrum determined, the hygiene program is started automatically and/or the user is notified of the start of the hygiene program.

Als Gassensoren 13 werden insbesondere VOC-Sensoren verwendet. Das Spektrum wird insbesondere mittels einer Mustererkennung unter Verwendung eines neuronalen Netzwerks und einer Referenzdatenbank bestimmt. Die Referenzdatenbank speichert die vorbestimmten Referenzmuster von Spektren.In particular, VOC sensors are used as gas sensors 13 . The spectrum is determined in particular by means of pattern recognition using a neural network and a reference database. The reference database stores the predetermined reference patterns of spectra.

In Fig. 4 ist ein viertes Ausführungsbeispiel eines Verfahrens zum Betreiben einer Geschirrspülmaschine 1 dargestellt.In 4 a fourth exemplary embodiment of a method for operating a dishwasher 1 is shown.

Das vierte Ausführungsbeispiel der Fig. 4 umfasst die Schritte 401 bis 405:
In Schritt 401 wird eine Probe eines während des Spülprogramms in dem Innenraum 2 der Geschirrspülmaschine 1 befindlichen Gasgemisches 17 (siehe Fig. 6) entnommen. Die Probe des in dem Innenraum 2 befindlichen Gasgemisches 17 wird während des Spülprogramms unter Verwendung von warmer Luft 16 entnommen. Die warme Luft 16 wird insbesondere mittels einer Heizung generiert und mittels einer Lüftung oder eines Gebläses dem Innenraum 2 zugeführt.The fourth embodiment of the 4 includes steps 401 to 405:
In step 401, a sample of a gas mixture 17 (see FIG 6 ) removed. The sample of the gas mixture 17 in the interior 2 is taken during the flushing program using warm air 16 . The warm air 16 is generated in particular by means of a heater and is supplied to the interior 2 by means of ventilation or a blower.

In Schritt 402 wird die entnommene Probe des Gasgemisches 17 einem eine Mehrzahl von unterschiedlichen Gassensoren 13 aufweisenden Gassensoren-Behälter 19 zugeführt (siehe Fig. 6).In step 402, the sample taken from the gas mixture 17 is supplied to a gas sensor container 19 having a plurality of different gas sensors 13 (see FIG 6 ).

In Schritt 403 wird eine jeweilige Menge einer Mehrzahl unterschiedlicher bestimmter Gase mittels der Gassensoren 13 in dem Gassensoren-Behälter 19 während des Spülprogramms ermittelt.In step 403, a respective quantity of a plurality of different specific gases is determined by means of the gas sensors 13 in the gas sensor container 19 during the flushing program.

In Schritt 404 wird ein Spektrum mittels der ermittelten Menge der Mehrzahl unterschiedlicher Gase bestimmt. Hierzu wird beispielsweise ein Spektrometer 21 eingesetzt (siehe Fig. 6).In step 404, a spectrum is determined using the determined amount of the plurality of different gases. A spectrometer 21 is used for this purpose, for example (see 6 ).

In Schritt 405 wird in Abhängigkeit von dem bestimmten Spektrum der Start des Hygieneprogramms automatisch veranlasst und/oder ein Hinweis wird an den Benutzer der Geschirrspülmaschine 1 betreffend den Start des Hygieneprogramms ausgegeben. Der Benutzer kann dann selbst den Start des Hygieneprogramms veranlassen.In step 405, depending on the spectrum determined, the start of the hygiene program is automatically initiated and/or a message is output to the user of the dishwasher 1 regarding the start of the hygiene program. The user can then initiate the start of the hygiene program himself.

Fig. 5 zeigt eine Perspektivansicht einer Ausführungsform einer Geschirrspülmaschine 1. Die Geschirrspülmaschine 1 ist insbesondere eine Haushalts-Geschirrspülmaschine. Die Geschirrspülmaschine 1 weist einen Innenraum 2, insbesondere einen Spülbehälter, zum Aufnehmen von Spülgut auf. Die Geschirrspülmaschine 1 weist ferner einen den Spülbehälter 2 umfassenden Korpus sowie eine Tür 3 auf. Der Spülbehälter 2 und die Tür 3 bilden eine Spülkammer 4 zum Spülen von Spülgut. Die Tür 3 ist in Fig. 1 in ihrer geöffneten Stellung gezeigt. Durch Schwenken um eine an einem unteren Ende der Tür 3 vorgesehene Schwenkachse S kann die Tür 3 geschlossen oder geöffnet werden. figure 5 shows a perspective view of an embodiment of a dishwasher 1. The dishwasher 1 is in particular a domestic dishwasher. The dishwasher 1 has an interior space 2, in particular a washing tub, for accommodating items to be washed. The dishwasher 1 also has a body enclosing the washing container 2 and a door 3 . The washing container 2 and the door 3 form a washing chamber 4 for washing items to be washed. Door 3 is in 1 shown in their open position. By pivoting about a pivot axis S provided at a lower end of the door 3, the door 3 can be closed or opened.

Der Spülbehälter 2 ist beispielsweise quaderförmig und kann einen Boden 5, eine dem Boden 5 gegenüberliegende Decke 6, eine der Tür 3 gegenüberliegende Rückwand 7 und zwei einander gegenüberliegende Seitenwände 8, 9 umfassen. Insbesondere die Seitenwände 8, 9 können aus Edelstahlblech gefertigt sein.The washing compartment 2 is cuboid, for example, and can comprise a floor 5, a cover 6 opposite the floor 5, a rear wall 7 opposite the door 3, and two side walls 8, 9 opposite one another. In particular, the side walls 8, 9 can be made of stainless steel sheet.

Die Geschirrspülmaschine 1 weist weiterhin zumindest eine Beladungsebene 10 auf. Die zumindest eine Beladungsebene 10 ist vorzugsweise eine Spülgutaufnahme der Geschirrspülmaschine 1. Insbesondere können mehrere Beladungsebenen 10 vorgesehen sein, welche einen Unterkorb, einen Oberkorb und/oder eine Besteckschublade umfassen können. Die mehreren Beladungsebenen 10 sind vorzugsweise übereinander in dem Spülbehälter 2 angeordnet. Jede Beladungsebene 10 ist wahlweise in einer Einschubrichtung E in den Spülbehälter 2 hinein oder in einer Auszugsrichtung A aus diesem heraus verlagerbar. Hierzu ist bevorzugt zu beiden Seiten einer jeweiligen Beladungsebene 10 eine Schiene 11 vorgesehen.The dishwasher 1 also has at least one loading level 10 . The at least one loading level 10 is preferably a washware receptacle of the dishwasher 1. In particular, multiple loading levels 10 can be provided, which can include a lower basket, an upper basket and/or a cutlery drawer. The multiple loading levels 10 are preferably arranged one above the other in the washing compartment 2 . Each loading level 10 can be moved either in a push-in direction E into the washing compartment 2 or in a pull-out direction A out of it. For this purpose, a rail 11 is preferably provided on both sides of a respective loading level 10 .

Eine wahlweise in dem Korpus oder in der Tür 3 der Geschirrspülmaschine 1 vorgesehene Steuerungsvorrichtung 12 ist dazu eingerichtet, den Ablauf von Spülprogrammen zum Spülen von Spülgut zu steuern.A control device 12 optionally provided in the body or in the door 3 of the dishwasher 1 is set up to control the sequence of wash programs for washing items to be washed.

Ferner umfasst die Geschirrspülmaschine 1 zumindest einen Gassensor 13, eine Starteinheit 14 und eine Ausgabeeinheit 15. Die Starteinheit 14 und die Ausgabeeinheit 15 sind insbesondere in der Steuerungsvorrichtung 12 integriert. Der Gassensor 13 ist dazu eingerichtet, eine Menge zumindest eines bestimmten Gases in dem Innenraum 2 während des Spülprogramms zu ermitteln. Die Starteinheit 13 ist dazu eingerichtet, ein Hygieneprogramm in Abhängigkeit von der ermittelten Menge des zumindest einen bestimmten Gases zu starten. Die Ausgabeeinheit 15 ist dazu eingerichtet, einen Hinweis an einen Benutzer der Geschirrspülmaschine betreffend einen Start des Hygieneprogramms in Abhängigkeit von der ermittelten Menge des zumindest einen bestimmten Gases auszugeben. Insbesondere umfasst die Geschirrspülmaschine 1 eine Mehrzahl unterschiedlicher Gassensoren 13 (siehe Fig. 6) zum Ermitteln einer Mehrzahl unterschiedlicher bestimmter Gase in dem Innenraum 2.Furthermore, the dishwasher 1 comprises at least one gas sensor 13, a starting unit 14 and a dispensing unit 15. The starting unit 14 and the dispensing unit 15 are integrated in the control device 12 in particular. The gas sensor 13 is set up to determine a quantity of at least one specific gas in the interior 2 during the flushing program. The start unit 13 is set up to start a hygiene program depending on the determined quantity of the at least one specific gas. The output unit 15 is set up to output an indication to a user of the dishwasher regarding the start of the hygiene program as a function of the determined quantity of the at least one specific gas. In particular, the dishwasher 1 includes a plurality of different gas sensors 13 (see FIG 6 ) for determining a plurality of different specific gases in the interior 2.

In Fig. 6 ist ein schematisches Blockschaltbild einer weiteren Ausführungsform einer Geschirrspülmaschine 1 dargestellt.In 6 a schematic block diagram of a further embodiment of a dishwasher 1 is shown.

Das Bezugszeichen 16 in der Fig. 6 bezeichnet warme Luft, welche zum Entnehmen einer Probe eines Gasgemisches 17 aus dem Innenraum 2 während des Spülprogramms verwendet wird. Die warme Luft 16 wird beispielsweise mittels einer Heizung generiert und mittels eines Gebläses dem Spülbehälter 2 zugeführt. Die Probe des Gasgemisches 17 wird mittels der warmen Luft 16 einem Konzentrationsbehälter 18 zugeführt. Das in dem Konzentrationsbehälter 18 befindliche Gasgemisch 17 wird dann einem Gassensoren-Behälter 19 zugeführt, welcher eine Mehrzahl unterschiedlicher Gassensoren 13 beinhaltet. In dem Beispiel der Fig. 6 umfasst der Gassensoren-Behälter 19 neun unterschiedliche Gassensoren 13, welche in einer Matrix angeordnet sind. Die unterschiedlichen Gassensoren 13 analysieren die komplexe Mischung von Molekülen des Gasgemisches 17. Der Ausgang der unterschiedlichen Gassensoren 13 sind Signale 20 oder ein Signalmuster, welche die molekulare Zusammensetzung des Gasgemisches 17 beschreiben. Diese Signale 20 werden einer Recheneinheit 21 zugeführt, welche insbesondere auch ein Spektrometer umfasst. Die Recheneinheit 21 bestimmt ein Spektrum 23 des Gasgemisches 17 anhand der Signale 20. Hierzu kann die Recheneinheit 21 Referenzmuster verwenden, welche in einer Referenzdatenbank 22 gespeichert sind. Die Recheneinheit 21 kann das Spektrum mittels einer Mustererkennung unter Verwendung eines neuronalen Netzwerks und der Referenzdatenbank 22 bestimmen.The reference number 16 in the 6 denotes warm air, which is used to take a sample of a gas mixture 17 from the interior 2 during the flushing program. The warm air 16 is generated by means of a heater, for example, and is fed to the washing container 2 by means of a blower. The sample of the gas mixture 17 is fed to a concentration container 18 by means of the warm air 16 . The gas mixture 17 in the concentration tank 18 is then fed to a gas sensor tank 19 which contains a plurality of different gas sensors 13 . In the example of 6 includes the gas sensor container 19 nine different gas sensors 13, which are arranged in a matrix. The different gas sensors 13 analyze the complex mixture of molecules of the gas mixture 17. The output of the different gas sensors 13 are signals 20 or a signal pattern which describe the molecular composition of the gas mixture 17. These signals 20 are fed to a computing unit 21, which in particular also includes a spectrometer. The computing unit 21 determines a spectrum 23 of the gas mixture 17 based on the signals 20. For this purpose, the computing unit 21 can use reference patterns, which are stored in a reference database 22. The computing unit 21 can determine the spectrum by means of pattern recognition using a neural network and the reference database 22 .

Das bestimmte Spektrum 23 wird der Steuerungsvorrichtung 12 der Geschirrspülmaschine 1 zugeführt. In Abhängigkeit des bestimmten Spektrums 23 kann die Steuerungsvorrichtung 12 das Hygieneprogramm automatisch starten oder die Ausgabe eines Hinweises an den Benutzer der Geschirrspülmaschine 1 veranlassen. Zusätzlich kann die Steuerungsvorrichtung 12 das Spülprogramm in Abhängigkeit von dem Spektrum 23 anpassen. Diese Anpassung ist als Feedback-Pfad mit dem Bezugszeichen 24 in der Fig. 6 illustriert.Spectrum 23 determined is fed to control device 12 of dishwasher 1 . Depending on the spectrum 23 determined, the control device 12 can start the hygiene program automatically or cause a message to be output to the user of the dishwasher 1 . In addition, the control device 12 can adapt the flushing program depending on the spectrum 23 . This adjustment is shown as a feedback path with the reference number 24 in FIG 6 illustrated.

Verwendete Bezugszeichen:Reference signs used:

11
Geschirrspülmaschinedishwasher
22
Spülbehälterflush tank
33
Türdoor
44
Spülkammerwashing chamber
55
Bodenfloor
66
Deckeceiling
77
Rückwandback panel
8,98.9
Seitenwändeside walls
1010
Beladungsebeneloading level
1111
Schienerail
1212
Steuerungsvorrichtungcontrol device
1313
Gassensorgas sensor
1414
Starteinheitstart unit
1515
Ausgabeeinheitoutput unit
1616
warme Luftwarm air
1717
Gasgemischgas mixture
1818
Konzentrationsbehälterconcentration tank
1919
Gassensoren-BehälterGas Sensor Container
2020
Signale, Signalmustersignals, signal patterns
2121
Recheneinheit, SpektrometerComputing unit, spectrometer
2222
Referenzdatenbankreference database
2323
Spektrumspectrum
2424
angepasstes Spülprogrammcustomized wash program

Claims (15)

  1. Method for operating a dishwasher (1), in particular a household dishwasher, wherein items to be washed that are arranged in an interior (2) of the dishwasher (1) are washed during a wash program, characterised by:
    determining (101, 201) a quantity of at least one specific gas in the interior (2) during the wash program and
    starting (102, 202) a hygiene program and/or outputting a notification to a user of the dishwasher (1) relating to the start of the hygiene program as a function of the determined quantity of the at least one specific gas.
  2. Method according to claim 1, characterised by:
    adjusting (203) the wash program as a function of the determined quantity of the at least one specific gas, if the determined quantity is greater than a specific threshold value.
  3. Method according to claim 1 or 2, characterised by:
    determining (301) a respective quantity of a plurality of different specific gases in the interior (2) by means of a plurality of different gas sensors (13) during the wash program.
  4. Method according to claim 1 or 2, characterised by:
    taking (401) a specimen of a gas mixture (17) present in the interior (2) during the wash program,
    supplying (402) the specimen of the gas mixture (17) taken to a gas sensor container (19) holding a plurality of different gas sensors (13), and
    determining (403) a respective quantity of a plurality of different specific gases by means of the gas sensors (13) in the gas sensor container (19) during the wash program.
  5. Method according to claim 4, characterised in that the specimen of the gas mixture (17) present in the interior (2) is taken using warm air (16) during the wash program.
  6. Method according to one of claims 3 to 5, characterised by:
    determining (302, 404) a spectrum (23) by means of the determined quantities of the plurality of different specific gases.
  7. Method according to claim 6, characterised by:
    starting (303, 405) the hygiene program and/or outputting the notification to the user of the dishwasher (1) relating to the start of the hygiene program as a function of the determined quantity of the determined spectrum (23).
  8. Method according to claim 7, characterised in that VOC sensors are used as the gas sensors (13).
  9. Method according to one of claims 6 to 8, characterised in that the spectrum is determined by means of pattern recognition using a neural network and a reference database (22).
  10. Method according to one of claims 1 to 9, characterised in that determining (101, 201) the quantity of the specific gas in the interior (2) during the wash program comprises determining the absolute quantity of the specific gas in the interior (2) and/or determining a change in the absolute quantity of the specific gas in the interior (2) over time and/or determining a concentration of the specific gas in the interior (2).
  11. Method according to one of claims 1 to 10, characterised in that the hygiene program (102, 202) comprises a cleaning segment, during which water or a water/detergent mixture is applied to the items being washed and/or a hygiene tablet and/or hygiene powder is used during the hygiene program and/or active oxygen is supplied to the interior (2) of the dishwasher (1) during the hygiene program and/or a salt is dispensed to the interior (2) during the hygiene program and/or a wash liquor present in the interior (2) is cooled or warmed during the hygiene program.
  12. Dishwasher (1), in particular a household dishwasher, with an interior (2) for holding items to be washed and a control apparatus (12) for performing a number of wash programs to wash the items to be washed, characterised by:
    a gas sensor (13) for determining a quantity of at least one specific gas in the interior (2) during the wash program, and
    a start unit (14) for starting a hygiene program as a function of the determined quantity of the at least one specific gas and/or an output unit (15) for outputting a notification to a user of the dishwasher (1) relating to the start of the hygiene program as a function of the determined quantity of the at least one specific gas.
  13. Dishwasher according to claim 12, characterised by:
    a plurality of different gas sensors (13) for determining a plurality of different specific gases in the interior (2).
  14. Dishwasher according to claim 13, characterised by:
    a spectrometer (21) for determining a spectrum (23) by means of the determined quantities of the plurality of different specific gases.
  15. Dishwasher according to one of claims 12 to 14, characterised in that the start unit (14) and/or the output unit (15) is/are integrated in the control apparatus (12).
EP16784212.9A 2015-11-16 2016-10-20 Method for operating a dish washing machine and dish washing machine Active EP3376931B1 (en)

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PCT/EP2016/075262 WO2017084827A1 (en) 2015-11-16 2016-10-20 Method for operating a dish washing machine and dish washing machine

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DE102015222586A1 (en) 2017-05-18
CN108348129A (en) 2018-07-31
EP3376931A1 (en) 2018-09-26
PL3376931T3 (en) 2022-05-16
WO2017084827A1 (en) 2017-05-26
US11284772B2 (en) 2022-03-29

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