EP2209409A1 - Method for operating a water-bearing domestic appliance - Google Patents

Method for operating a water-bearing domestic appliance

Info

Publication number
EP2209409A1
EP2209409A1 EP08845773A EP08845773A EP2209409A1 EP 2209409 A1 EP2209409 A1 EP 2209409A1 EP 08845773 A EP08845773 A EP 08845773A EP 08845773 A EP08845773 A EP 08845773A EP 2209409 A1 EP2209409 A1 EP 2209409A1
Authority
EP
European Patent Office
Prior art keywords
water
household appliance
control device
total amount
detected
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
EP08845773A
Other languages
German (de)
French (fr)
Other versions
EP2209409B1 (en
Inventor
Mathias Herrmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2209409A1 publication Critical patent/EP2209409A1/en
Application granted granted Critical
Publication of EP2209409B1 publication Critical patent/EP2209409B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A47L15/42—Details
    • A47L15/4229—Water softening arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • A47L2401/06—Water supply, circulation or discharge information
    • 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
    • A47L2501/34—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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/42—Detergent or additive supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/007—Arrangements of water softeners

Definitions

  • the invention relates to a method for operating a water-conducting household appliance according to the preamble of claim 1.
  • Modern water-conducting household appliances such as. Dishwashing or washing machines are provided with a water supply system, by which on the basis of an automatically running program control required for a particular program step amount of water can be supplied to the household appliance.
  • dishwashing machines use various wash programs, which typically include the program steps “pre-wash”, “clean”, “intermediate wash”, “rinse” and “dry”.
  • rinsing liquor For rinsing the items to be washed, a certain amount of rinsing liquid (“rinsing liquor”) is required in accordance with the respective program step, which is set via the water supply system.
  • a number of other maintenance work is required in water-conducting household appliances, such as a review of the circulation pump for circulating the rinsing water and a cleaning or replacement of a water filter in Zuleitsystem that are usually done after the expiration of a based on experience device life without this to take into account an actual individual load of the household appliance, so that the corresponding maintenance work under circumstances is carried out only too late, at which already functional losses occur.
  • a water-conducting domestic appliance is shown with a water supply system controlled by a control device, in particular an electronic control device, for supplying a measured amount of water to the domestic appliance and a method for operating the domestic appliance.
  • the electronic control device is used to execute at least one program for operating the household appliance. Via the water supply system controlled by the control device, a (selectable) specific amount of water can be supplied to the domestic appliance, depending on the program or program step that is being run.
  • the household appliance is characterized essentially by the fact that it is equipped with a total water quantity detecting device for detecting a total amount of water supplied to the domestic appliance during its appliance service life via the water supply system.
  • a total amount of water supplied to the household appliance during the device service life via the water supply system is detected by means of the total water quantity detection device.
  • a domestic dishwasher is provided with a water supply system controlled by an electronic control device for controlling various washing programs, which is connected to an external water supply (domestic water connection). Depending on the washing program or program step currently being carried out by the control device, the dishwasher can be supplied in the desired manner with measured individual amounts of water via the water supply system.
  • the water supply system is provided for this purpose with a controlled by the control device electromagnetic inlet valve, through which the water supply to the household appliance can be locked or opened.
  • the inlet valve is closed by a corresponding control signal of the control device, if it is detected by the control device that a desired for a wash program or a program step amount of water has accrued via the water supply system.
  • the water supply can be released by opening the inlet valve.
  • the water supply system furthermore comprises a (single) water quantity detection device, which is connected to the control device and controlled by the control device, by which one of the dishwashing machines can be detected in a respectively executed wash program or respectively executed program step.
  • a (single) water quantity detection device can be designed in many ways. For example, a record is tion of the supplied amount of water via a arranged in the water supply system flow meter, in which the inflowing amount of water is measured by an impeller rotated by the incoming water flow. If a certain (selectable) amount of water that has accumulated is detected via the flow meter, the control device blocks a further water inlet via the inlet valve.
  • the water quantity detecting means may, for example, also comprise a flooded feed tank, in which case, when the float reaches a certain (selectable) level, the inlet valve is blocked by the control means.
  • Equally conceivable is a filling of a feed container made possible only for a specific (selectable) period by the control device via the inlet valve.
  • an electronic total water quantity detection device for detecting the total amount of water supplied to the dishwasher during the device life is integrated.
  • the total electronic water quantity detecting means accumulates the amount of water supplied from the (single) water quantity detecting means for each executed rinsing program or program step over the life of the apparatus, and stores this (summed) total amount of water in a nonvolatile data storage means of the controller.
  • the dishwasher to prevent calcification is equipped with a water softening device (ion exchanger), through which the Ca2 + ions contained in the incoming water can be replaced, for example by Na + ions.
  • a regeneration of the ion exchanger takes place, controlled by the control device, by applying a regeneration salt, wherein the Ca 2+ ions contained in the ion exchanger are replaced by Na + ions, for example.
  • a regeneration of the ion exchanger depending on a user-adjustable water hardness, respectively after a selectable accumulated total amount of water, so that a regeneration in definable gradations of the accumulated total amount of water is made possible and the actual stress of the dishwasher is considered.
  • a decreasing exchange rate tion based on a map (map control) or a preprogrammed table are taken into account.
  • a household dishwasher is, as described in Example 1, provided with an electronic control device with a total electronic Wassmengener enteredsein- device and controlled by the controller water supply system with a (single) water quantity detection device.
  • an electronic control device with a total electronic Wassmengener enteredsein- device and controlled by the controller water supply system with a (single) water quantity detection device.
  • the dishwasher is provided with a cleaning device controlled by the control device for dispensing detergent for cleaning the dishwasher.
  • a cleaning agent is introduced, which is present for example as a cleaner tab ("sucking") in compacted form.
  • a desired amount of detergent for cleaning the dishwasher can be used.
  • a choice of the added amount of detergent is carried out here on the basis of the accumulated total amount of water, so that the amount of the supplied detergent can be selected in definable gradations of the total amount of accumulated water.
  • a cleaning of the dishwasher can be done here in particular on the basis of a map or a preprogrammed table.
  • a domestic dishwasher is, as described in Example 1, provided with an electronic control device with an electronic total water quantity detection device and a water supply system controlled by the control device with a (single) water quantity detection device.
  • an electronic control device with an electronic total water quantity detection device and a water supply system controlled by the control device with a (single) water quantity detection device.
  • the control device with a (single) water quantity detection device.
  • the total amount of water supplied is stored and provided for external access, so that it can be read out, for example by a service technician. If errors or damage occur during operation of the dishwashing machine, it is important for a fault analysis to know how the dishwasher was actually used by the user.
  • the total amount of water supplied to the dishwasher, or the resulting actual use of the dishwasher, can be of great help to the service technician when troubleshooting.
  • the information on the total amount of water supplied until the occurrence of a defect or damage can also be used to improve possible problem areas of the device and, consequently, with a view to technical improvement and further development.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

The invention relates to a water-bearing domestic appliance and to a method for the operation thereof, comprising a water supply system, which is controlled by an electronic control unit, for feeding a measured water quantity to the domestic appliance, wherein a total water quantity which is supplied to the domestic appliance during the device service life via the water supply system, is detected using a total water quantity detection device.

Description

Verfahren zum Betreiben eines wasserführendes Haushaltsgeräts Method for operating a water-conducting household appliance
Die Erfindung betrifft ein Verfahren zum Betreiben eines wasserführendes Haushaltsgeräts nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for operating a water-conducting household appliance according to the preamble of claim 1.
Moderne wasserführende Haushaltsgeräte, wie bspw. Geschirrspül- oder Waschmaschinen sind mit einem Wasserzulaufsystem versehen, durch welches auf Basis einer automatisch ablaufenden Programmsteuerung eine für einen bestimmten Programmschritt benötigte Wassermenge dem Haushaltsgerät zugeführt werden kann. So werden bei- spielsweise in Geschirrspülmaschinen diverse Spülprogramme eingesetzt, welche typischer Weise die Programmschritte "Vorspülen", "Reinigen", "Zwischenspülen", "Klarspülen" und "Trocknen" umfassen. Zum Spülen des Spülguts ist entsprechend dem jeweiligen Programmschritt eine bestimmte Menge Spülflüssigkeit ("Spülflotte") erforderlich, die über das Wasserzulaufsystem eingestellt wird.Modern water-conducting household appliances, such as. Dishwashing or washing machines are provided with a water supply system, by which on the basis of an automatically running program control required for a particular program step amount of water can be supplied to the household appliance. Thus, for example, dishwashing machines use various wash programs, which typically include the program steps "pre-wash", "clean", "intermediate wash", "rinse" and "dry". For rinsing the items to be washed, a certain amount of rinsing liquid ("rinsing liquor") is required in accordance with the respective program step, which is set via the water supply system.
Um eine einwandfreie Funktion über einen längeren Zeitraum sicherzustellen, sind in wasserführenden Haushaltsgeräten regelmäßige Wartungsarbeiten erforderlich. Beispielsweise erfolgt in modernen Geschirrspülmaschinen zur Vermeidung von Kalkablagerungen ("Kesselstein") in den wasserführenden Bauteilen und von Kalkrückständen auf dem Spülgut eine Enthärtung des zugeleiteten Wassers mittels einer speziellen Wasserenthärtungseinrichtung (lonentauscher). Wird Wasser durch den lonentauscher geleitet, werden die für die Wasserhärte verantwortlichen Ca2+-Ionen beispielsweise durch Na+- lonen ersetzt, wodurch das Wasser weicher wird. Ist der lonentauscher vollständig mit Ca2+-Ionen beladen, so ist eine Regeneration erforderlich, was durch Anwenden eines Regeneriersalzes erfolgt, durch welches die im lonentauscher enthaltenen Ca2+-Ionen beispielsweise durch Na+-Ionen ersetzt werden.To ensure proper operation over a long period of time, regular maintenance is required in water-bearing household appliances. For example, in modern dishwashers to avoid limescale ("scale") in the water-bearing components and limescale on the dishes a softening of the supplied water by means of a special water softening device (ion exchanger). When water is passed through the ion exchanger, the Ca2 + ions responsible for the water hardness are replaced by Na + ions, for example, which softens the water. If the ion exchanger is completely laden with Ca 2+ ions, then regeneration is required, which is done by applying a regenerating salt which replaces the Ca 2+ ions contained in the ion exchanger with, for example, Na + ions.
Bislang erfolgt eine solche durch die Programmsteuerung automatisch ablaufende Regeneration des lonentauschers nach Durchführen einer werksseitig voreingestellten Anzahl von Spülvorgängen, die in Abhängigkeit einer vom Anwender manuell einzustellenden lokalen Wasserhärte variiert.So far, such is done automatically by the program control regeneration of the ion exchanger after performing a factory preset number of rinses, which varies depending on a manually set by the user local water hardness.
Die werksseitigen Voreinstellungen berücksichtigen bislang keine mit fortschreitender Gerätelebenszeit gewöhnlich nachlassende Tauscherleistung des lonentauschers, so dass bei älteren Geräten bis zur nächstfolgenden Regeneration des lonentauschers bereits eine verminderte Tauscherleistung auftreten kann. In entsprechender weise sind in wasserführenden Haushaltsgeräten eine Reihe weiterer Wartungsarbeiten erforderlich, wie beispielsweise eine Überprüfung der Umwälzpumpe zum Umwälzen der Spülflotte und eine Säuberung bzw. Austausch eines Wasserfilters im Zuleitsystem, die bislang in der Regel nach Ablauf einer auf Erfahrungswerten beruhenden Gerätelebenszeit erfolgen, ohne hierbei eine tatsächliche individuelle Beanspruchung des Haushaltgeräts zu berücksichtigen, so dass die entsprechenden Wartungsarbeiten unter Unständen erst zu einem zu späten Zeitpunkt, bei dem bereits Funktionseinbußen auftreten, durchgeführt werden.The factory presettings so far do not take account of the usually decreasing exchanger performance of the ion exchanger as the device life progresses, so that in the case of older devices a reduced exchanger performance can already occur until the next regeneration of the ion exchanger. In a corresponding manner, a number of other maintenance work is required in water-conducting household appliances, such as a review of the circulation pump for circulating the rinsing water and a cleaning or replacement of a water filter in Zuleitsystem that are usually done after the expiration of a based on experience device life without this to take into account an actual individual load of the household appliance, so that the corresponding maintenance work under circumstances is carried out only too late, at which already functional losses occur.
Demnach besteht Bedarf für ein wasserführendes Haushaltsgerät sowie für ein Verfahren zum Betreiben desselben, bei dem Wartungsarbeiten in Abhängigkeit einer tatsächlichen, vom individuellen Anwender abhängigen Beanspruchung des Haushaltsgeräts ermöglicht sind.Accordingly, there is a need for a water-conducting household appliance as well as a method of operating the same, in which maintenance work in response to an actual, dependent on the individual user load of the household appliance are possible.
Diese Aufgabe wird nach dem Vorschlag der Erfindung durch ein Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts mit den Merkmalen von Patentanspruch 1 sowie durch ein wasserführendes Haushaltsgerät mit den Merkmalen von Patentanspruch 7 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind durch die Merkmale der Unter- ansprüche angegeben.This object is achieved according to the proposal of the invention by a method for operating a water-conducting household appliance with the features of claim 1 and by a water-conducting household appliance with the features of claim 7. Advantageous embodiments of the invention are indicated by the features of the subclaims.
Erfindungsgemäß ist ein wasserführendes Haushaltsgerät mit einem von einer Steuereinrichtung, insbesondere einer elektronischen Steuereinrichtung, gesteuerten Wasserzulaufsystem zum Zuleiten einer bemessenen Wassermenge zum Haushaltsgerät sowie ein Verfahren zum Betreiben des Haushaltsgeräts gezeigt. Die elektronische Steuereinrichtung dient zur Ausführung wenigstens eines Programms zum Betreiben des Haushaltsgeräts. Über das von der Steuereinrichtung gesteuerte Wasserzulaufsystem kann dem Haushaltsgerät, in Abhängigkeit des ablaufenden Programms bzw. Programmschritts, eine (wählbare) bestimmte Wassermenge zugeführt werden.According to the invention, a water-conducting domestic appliance is shown with a water supply system controlled by a control device, in particular an electronic control device, for supplying a measured amount of water to the domestic appliance and a method for operating the domestic appliance. The electronic control device is used to execute at least one program for operating the household appliance. Via the water supply system controlled by the control device, a (selectable) specific amount of water can be supplied to the domestic appliance, depending on the program or program step that is being run.
Das Haushaltsgerät zeichnet sich in wesentlicher Weise dadurch aus, dass es mit einer Gesamtwassermengenerfassungseinrichtung zum Erfassen einer dem Haushaltsgerät während dessen Gerätelebenszeit über das Wasserzulaufsystem zugeführten Gesamtwassermenge ausgestattet ist. Erfindungsgemäß wird mittels der Gesamtwassermengen- erfassungseinrichtung eine dem Haushaltsgerät während der Gerätelebenszeit über das Wasserzulaufsystem zugeführte Gesamtwassermenge erfasst. Durch das Erfassen der dem wasserführenden Haushaltsgerät über die Gerätelebenszeit zugeführten Gesamtwasserwassermenge kann die tatsächliche, für einen jeweiligen Anwender spezifische und individuelle Beanspruchung des Haushaltsgeräts erkannt und genutzt werden. Somit ist es in vorteilhafter Weise ermöglicht, dass Gerätefunktionen in Abhängigkeit einer tatsächlichen Beanspruchung des wasserführenden Haushaltsgeräts ausgeführt werden können.The household appliance is characterized essentially by the fact that it is equipped with a total water quantity detecting device for detecting a total amount of water supplied to the domestic appliance during its appliance service life via the water supply system. According to the invention, a total amount of water supplied to the household appliance during the device service life via the water supply system is detected by means of the total water quantity detection device. By detecting the total amount of water water supplied to the water-conducting household appliance over the life of the appliance, the actual, individual load of the domestic appliance that is specific to a particular user can be recognized and used. Thus, it is advantageously possible that device functions can be performed depending on an actual load of the water-conducting household appliance.
Die Erfindung wird nun anhand mehrerer Ausführungsbeispiele näher erläutert, welche lediglich einer Veranschaulichung der Erfindung dienen, ohne die Erfindung hierauf einzuschränken.The invention will now be explained in more detail with reference to several embodiments, which serve merely to illustrate the invention, without limiting the invention thereto.
Beispiel 1example 1
Eine Haushalts-Geschirrspülmaschine ist mit einem von einer elektronischen Steuereinrichtung zur Steuerung verschiedener Spülprogramme gesteuerten Wasserzulaufsystem versehen, das an eine externe Wasserversorgung (Hauswasseranschluss) angeschlossen ist. Über das Wasserzulaufsystem können der Geschirrspülmaschine, je nach dem von der Steuereinrichtung gerade ausgeführten Spülprogramm bzw. Programmschritt, in gewünschter Weise bemessene Einzelwassermengen zugeführt werden.A domestic dishwasher is provided with a water supply system controlled by an electronic control device for controlling various washing programs, which is connected to an external water supply (domestic water connection). Depending on the washing program or program step currently being carried out by the control device, the dishwasher can be supplied in the desired manner with measured individual amounts of water via the water supply system.
Das Wasserzulaufsystem ist zu diesem Zweck mit einem von der Steuereinrichtung gesteuerten elektromagnetischen Zulaufventil versehen, durch welches die Wasserzufuhr zum Haushaltsgerät gesperrt bzw. geöffnet werden kann. So erfolgt ein Schließen des Zulaufventils durch ein entsprechendes Ansteuersignal der Steuereinrichtung, falls von der Steuereinrichtung erfasst wird, dass eine für ein Spülprogramm bzw. einen Programmschritt gewünschte Wassermenge über das Wasserzulaufsystem zugelaufen ist. In entsprechender Weise kann der Wasserzulauf über ein Öffnen des Zulaufventils frei gegeben werden.The water supply system is provided for this purpose with a controlled by the control device electromagnetic inlet valve, through which the water supply to the household appliance can be locked or opened. Thus, the inlet valve is closed by a corresponding control signal of the control device, if it is detected by the control device that a desired for a wash program or a program step amount of water has accrued via the water supply system. In a corresponding manner, the water supply can be released by opening the inlet valve.
Das Wasserzulaufsystem umfasst zu diesem Zweck weiterhin eine mit der Steuereinrichtung datentechnisch verbundene, von der Steuereinrichtung gesteuerte (Einzel- )Wassermengenerfassungseinrichtung, durch welche eine der Geschirrspülmaschine in einem jeweils ausgeführten Spülprogramm bzw. jeweils ausgeführten Programmschritt zulaufende Wassermenge erfasst werden kann. Eine solche Wassermengenerfassungs- einrichtung kann in vielfältiger Weise ausgebildet sein. Beispielsweise erfolgt eine Erfas- sung der zugeleiteten Wassermenge über einen im Wasserzulaufsystem angeordneten Durchflussmengenzähler, bei dem die zulaufende Wassermenge durch ein vom zulaufenden Wasserstrom gedrehtes Flügelrad gemessen wird. Wird über den Durchflussmengenzähler eine bestimmte (wählbare) zugelaufene Wassermenge erfasst, so sperrt die Steuereinrichtung über das Zulaufventil einen weiteren Wasserzulauf.For this purpose, the water supply system furthermore comprises a (single) water quantity detection device, which is connected to the control device and controlled by the control device, by which one of the dishwashing machines can be detected in a respectively executed wash program or respectively executed program step. Such Wassermengenerfassungs- device can be designed in many ways. For example, a record is tion of the supplied amount of water via a arranged in the water supply system flow meter, in which the inflowing amount of water is measured by an impeller rotated by the incoming water flow. If a certain (selectable) amount of water that has accumulated is detected via the flow meter, the control device blocks a further water inlet via the inlet valve.
Alternativ kann die Wassermengenerfassungseinrichtung beispielsweise auch einen mit einem Schwimmer versehenen Zulaufbehälter umfassen, wobei in diesem Fall, dann, wenn der Schwimmer eine bestimmte (wählbare) Höhe erreicht, das Zulaufventil von der Steuereinrichtung gesperrt wird.Alternatively, the water quantity detecting means may, for example, also comprise a flooded feed tank, in which case, when the float reaches a certain (selectable) level, the inlet valve is blocked by the control means.
Gleichermaßen denkbar ist eine lediglich für einen bestimmten (wählbaren) Zeitraum von der Steuereinrichtung über das Zulaufventil ermöglichte Füllung eines Zulaufbehälters.Equally conceivable is a filling of a feed container made possible only for a specific (selectable) period by the control device via the inlet valve.
In die elektronische Steuereinrichtung zur Programm- und Ablaufsteuerung der Geschirrspülmaschine ist eine elektronische Gesamtwassermengenerfassungseinrichtung zur Erfassung der der Geschirrspülmaschine während der Gerätelebenszeit zugeführten Gesamtwassermenge integriert. Die elektronische Gesamtwassermengenerfassungseinrich- tung summiert die von der (Einzel-)Wassermengenerfassungseinrichtung für ein jeweils ausgeführtes Spülprogramm bzw. einen jeweilig ausgeführten Programmschritt zugeleitete Wassermenge über die Gerätelebenszeit auf und speichert diese (summierte) Gesamtwassermenge in einer nichtflüchtigen Datenspeichereinrichtung der Steuereinrichtung.In the electronic control device for program and sequence control of the dishwasher, an electronic total water quantity detection device for detecting the total amount of water supplied to the dishwasher during the device life is integrated. The total electronic water quantity detecting means accumulates the amount of water supplied from the (single) water quantity detecting means for each executed rinsing program or program step over the life of the apparatus, and stores this (summed) total amount of water in a nonvolatile data storage means of the controller.
Weiterhin ist die Geschirrspülmaschine zur Vermeidung von Kalkablagerungen mit einer Wasserenthärtungseinrichtung (lonentauscher) ausgestattet, durch welche die im zulaufenden Wasser enthaltenen Ca2+-Ionen beispielsweise durch Na+-Ionen ersetzt werden können. Eine Regeneration des lonentauschers erfolgt, gesteuert durch die Steuereinrichtung, durch Anwenden eines Regeneriersalzes, wobei die im lonentauscher enthaltenen Ca2+-Ionen beispielsweise durch Na+-Ionen ersetzt werden. Gesteuert durch die Steuereinrichtung erfolgt eine Regeneration des lonentauschers, in Abhängigkeit einer vom Anwender einstellbaren Wasserhärte, jeweils nach einer wählbaren zugelaufenen Gesamtwassermenge, so dass eine Regeneration in definierbaren Abstufungen der zugelaufenen Gesamtwassermenge ermöglicht ist und die tatsächliche Beanspruchung der Geschirr- Spülmaschine berücksichtigt wird. Insbesondere kann eine nachlassende Tauscherleis- tung auf Basis eines Kennfelds (Kennfeldsteuerung) bzw. einer vorprogrammierten Tabelle berücksichtigt werden.Furthermore, the dishwasher to prevent calcification is equipped with a water softening device (ion exchanger), through which the Ca2 + ions contained in the incoming water can be replaced, for example by Na + ions. A regeneration of the ion exchanger takes place, controlled by the control device, by applying a regeneration salt, wherein the Ca 2+ ions contained in the ion exchanger are replaced by Na + ions, for example. Controlled by the controller, a regeneration of the ion exchanger, depending on a user-adjustable water hardness, respectively after a selectable accumulated total amount of water, so that a regeneration in definable gradations of the accumulated total amount of water is made possible and the actual stress of the dishwasher is considered. In particular, a decreasing exchange rate tion based on a map (map control) or a preprogrammed table are taken into account.
Beispiel 2Example 2
Eine Haushalts-Geschirrspülmaschine ist, wie in Beispiel 1 beschrieben, mit einer elektronischen Steuereinrichtung mit einer elektronischen Gesamtwassermengenerfassungsein- richtung und einem von der Steuereinrichtung gesteuerten Wasserzulaufsystem mit einer (Einzel-)Wassermengenerfassungseinrichtung versehen. Zur Vermeidung unnötiger Wie- derholungen werden hier nur die Unterschiede zur Haushalts-Geschirrspülmaschine von Beispiel 1 erläutert und ansonsten auf die zu Beispiel 1 gemachten Ausführungen Bezug genommen.A household dishwasher is, as described in Example 1, provided with an electronic control device with a total electronic Wassmengenerfassungsein- device and controlled by the controller water supply system with a (single) water quantity detection device. To avoid unnecessary repetition, only the differences from the domestic dishwasher of example 1 will be explained here, and otherwise reference is made to the statements made with regard to example 1.
Die Geschirrspülmaschine ist mit einer von der Steuereinrichtung gesteuerten Reini- gungseinrichtung zur Abgabe von Reinigungsmittel zur Reinigung der Geschirrspülmaschine versehen. In die Reinigungseinrichtung ist zu diesem Zweck ein Reinigungsmittel eingebracht, das beispielsweise als Reiniger-Tab ("Lutschform") in kompaktierter Form vorliegt. Durch gezieltes Ablösen von Reinigungsmittel von dem Reiniger-Tab mittels Spülflüssigkeit kann, gesteuert durch die Steuereinrichtung, eine gewünschte Reini- gungsmittelmenge für eine Reinigung der Geschirrspülmaschine eingesetzt werden. Eine Wahl der zugegebenen Reinigungsmittelmenge erfolgt hierbei auf Basis der zugelaufenen Gesamtwassermenge, so dass die Menge des zugeführten Reinigungsmittels in definierbaren Abstufungen der zugelaufenen Gesamtwassermenge gewählt werden kann. Eine Reinigung der Geschirrspülmaschine kann hier insbesondere auf Basis eines Kennfelds bzw. einer vorprogrammierten Tabelle erfolgen.The dishwasher is provided with a cleaning device controlled by the control device for dispensing detergent for cleaning the dishwasher. In the cleaning device for this purpose, a cleaning agent is introduced, which is present for example as a cleaner tab ("sucking") in compacted form. By targeted removal of detergent from the detergent tab by means of rinsing liquid can, controlled by the control device, a desired amount of detergent for cleaning the dishwasher can be used. A choice of the added amount of detergent is carried out here on the basis of the accumulated total amount of water, so that the amount of the supplied detergent can be selected in definable gradations of the total amount of accumulated water. A cleaning of the dishwasher can be done here in particular on the basis of a map or a preprogrammed table.
Beispiel 3Example 3
Eine Haushalts-Geschirrspülmaschine ist, wie in Beispiel 1 beschrieben, mit einer elektro- nischen Steuereinrichtung mit einer elektronischen Gesamtwassermengenerfassungsein- richtung und einem von der Steuereinrichtung gesteuerten Wasserzulaufsystem mit einer (Einzel-)Wassermengenerfassungseinrichtung versehen. Zur Vermeidung unnötiger Wiederholungen werden hier nur die Unterschiede zur Haushalts-Geschirrspülmaschine von Beispiel 1 erläutert und ansonsten auf die zu Beispiel 1 gemachten Ausführungen Bezug genommen. In einer nicht-flüchtigen Datenspeichereinrichtung der Steuereinrichtung der Geschirrspülmaschine wird die zugeleitete Gesamtwassermenge gespeichert und für einen externen Zugriff bereitgestellt, so dass sie, beispielsweise von einem Service-Techniker, ausgelesen werden kann. Treten Fehler bzw. Schäden beim Betrieb der Geschirrspülmaschi- ne auf, so ist es für eine Fehleranalyse wichtig zu wissen, wie die Geschirrspülmaschine von dem Anwender tatsächlich benutzt wurde. Die der Geschirrspülmaschine zugeleitete Gesamtwassermenge bzw. die sich hieraus ergebende tatsächliche Beanspruchung der Geschirrspülmaschine, kann dem Service-Techniker bei der Fehlerbehebung wertvolle Hilfe leisten. Darüber hinaus kann die Information über die zugeleitete Gesamtwasser- menge bis zum Auftreten eines Fehlers bzw. Schadens auch für eine Verbesserung möglicher Problemstellen des Geräts und demzufolge in Hinblick auf eine technische Verbesserung und Weiterentwicklung eingesetzt werden. A domestic dishwasher is, as described in Example 1, provided with an electronic control device with an electronic total water quantity detection device and a water supply system controlled by the control device with a (single) water quantity detection device. To avoid unnecessary repetition, only the differences from the domestic dishwasher of Example 1 are explained here, and otherwise reference is made to the statements made with respect to Example 1. In a non-volatile data storage device of the dishwasher of the dishwasher, the total amount of water supplied is stored and provided for external access, so that it can be read out, for example by a service technician. If errors or damage occur during operation of the dishwashing machine, it is important for a fault analysis to know how the dishwasher was actually used by the user. The total amount of water supplied to the dishwasher, or the resulting actual use of the dishwasher, can be of great help to the service technician when troubleshooting. In addition, the information on the total amount of water supplied until the occurrence of a defect or damage can also be used to improve possible problem areas of the device and, consequently, with a view to technical improvement and further development.

Claims

Patentansprüche claims
1. Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts, insbesondere1. A method for operating a water-conducting household appliance, in particular
Geschirrspül- oder Waschmaschine, mit einem von einer Steuereinrichtung gesteu- erten Wasserzulaufsystem zum Zuleiten einer bemessenen Wassermenge zumDishwasher or washing machine, with a controlled by a control device water supply system for supplying a metered amount of water to
Haushaltsgerät, dadurch gekennzeichnet, dass mittels einer Gesamtwassermen- generfassungseinrichtung eine dem Haushaltsgerät während der Gerätelebenszeit über das Wasserzulaufsystem zugeführte Gesamtwassermenge erfasst wird.Domestic appliance, characterized in that by means of a Gesamtwassermen- generfassungseinrichtung a household appliance during the device life time via the water supply system supplied total amount of water is detected.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass ein die mittels der Ge- samtwassermengenerfassungseinrichtung erfasste Gesamtwassermenge repräsentierender Wert an die Steuereinrichtung übertragen wird.2. Method according to claim 1, characterized in that a value representing the total amount of water detected by means of the total water quantity detecting device is transmitted to the control device.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Steuereinrichtung in Abhängigkeit der erfassten Gesamtwassermenge eine Gerätefunktion steuert.3. The method according to claim 2, characterized in that the control device controls a device function as a function of the detected total amount of water.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Steuereinrichtung in Abhängigkeit der erfassten Gesamtwassermenge eine Regeneration einer Wasserenthärtungseinrichtung zur Enthärtung des zugeleiteten Wassers steuert.4. The method according to claim 3, characterized in that the control device controls a regeneration of a water softening device for softening the supplied water as a function of the detected total amount of water.
5. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Steuereinrichtung in Abhängigkeit der erfassten Gesamtwassermenge eine Abgabe von Reinigungsmittel zur Reinigung des Haushaltsgeräts steuert.5. The method according to claim 3, characterized in that the control device controls a release of detergent for cleaning the household appliance depending on the detected total amount of water.
6. Verfahren nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass der an die Steuereinrichtung übertragene Wert für die Gesamtwassermenge in einer nichtflüchtigen Datenspeichereinrichtung der Steuereinrichtung gespeichert und von der Steuereinrichtung, beispielsweise für eine Fehlerdiagnose, bereitgestellt wird.6. The method according to any one of claims 2 to 5, characterized in that the value transmitted to the control means for the total amount of water stored in a non-volatile data storage means of the control means and provided by the control means, for example for a fault diagnosis.
7. Wasserführendes Haushaltsgerät mit einem von einer Steuereinrichtung gesteuerten Wasserzulaufsystem zum Zuleiten einer bemessenen Wassermenge zum Haushaltsgerät, dadurch gekennzeichnet, dass das Haushaltsgerät eine Gesamt- wassermengenerfassungseinrichtung zum Erfassen einer dem Haushaltsgerät während dessen Gesamtbetriebszeit über das Wasserzulaufsystem zugeführten Ge- samtwassermenge umfasst. 7. A water-conducting household appliance with a controller controlled by a water supply system for supplying a metered amount of water to the household appliance, characterized in that the household appliance comprises a total water quantity detecting means for detecting a total water supplied to the household appliance during its total operating time via the water supply system.
8. Wasserführendes Haushaltsgerät nach Anspruch 7, dadurch gekennzeichnet, dass die Gesamtwassermengenerfassungseinrichtung mit der Steuereinrichtung zur Datenübertragung verbunden ist.8. Water-conducting household appliance according to claim 7, characterized in that the total water quantity detection device is connected to the control device for data transmission.
9. Wasserführendes Haushaltsgerät nach Anspruch 8, dadurch gekennzeichnet, dass die Steuereinrichtung mit einer nichtflüchtigen Datenspeichereinrichtung zur Speicherung eines Wertes für die erfasste Gesamtwassermenge ausgestattet ist.9. A water-conducting household appliance according to claim 8, characterized in that the control device is equipped with a non-volatile data storage device for storing a value for the detected total amount of water.
10. Wasserführendes Haushaltsgerät nach Anspruch 9, dadurch gekennzeichnet, dass die Steuereinrichtung zur Steuerung einer Gerätefunktion in Abhängigkeit der er- fassten Gesamtwassermenge geeignet eingerichtet ist.10. Water-conducting household appliance according to claim 9, characterized in that the control device for controlling a device function depending on the detected total amount of water is set up suitable.
11. Wasserführendes Haushaltsgerät nach Anspruch 10, dadurch gekennzeichnet, dass die Steuereinrichtung zur Steuerung einer Regeneration einer Wasserenthärtungs- einrichtung in Abhängigkeit der erfassten Gesamtwassermenge geeignet eingerichtet ist.11. Water-conducting household appliance according to claim 10, characterized in that the control device for controlling a regeneration of a water softening device is set up as a function of the detected total amount of water.
12. Wasserführendes Haushaltsgerät nach Anspruch 10, dadurch gekennzeichnet, dass die Steuereinrichtung zur Steuerung einer Abgabe eines Reinigungsmittels zur Rei- nigung des Haushaltsgeräts in Abhängigkeit der erfassten Gesamtwassermenge geeignet eingerichtet ist. 12. Water-conducting household appliance according to claim 10, characterized in that the control device for controlling a dispensing of a cleaning agent for cleaning of the household appliance depending on the detected total amount of water is set up suitable.
EP08845773.4A 2007-10-31 2008-10-24 Method for operating a water-bearing domestic appliance Active EP2209409B1 (en)

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DE102007052085A DE102007052085A1 (en) 2007-10-31 2007-10-31 Method for operating a water-conducting household appliance
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US9661979B2 (en) 2017-05-30

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