EP2008567A1 - Control for a dishwasher - Google Patents

Control for a dishwasher Download PDF

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Publication number
EP2008567A1
EP2008567A1 EP08010411A EP08010411A EP2008567A1 EP 2008567 A1 EP2008567 A1 EP 2008567A1 EP 08010411 A EP08010411 A EP 08010411A EP 08010411 A EP08010411 A EP 08010411A EP 2008567 A1 EP2008567 A1 EP 2008567A1
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EP
European Patent Office
Prior art keywords
program
degree
display
control according
contamination
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Granted
Application number
EP08010411A
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German (de)
French (fr)
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EP2008567B1 (en
Inventor
Erik Berends
Günther Dr. Ennen
Seyfettin Kara
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Miele und Cie KG
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Miele und Cie KG
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Application filed by Miele und Cie KG filed Critical Miele und Cie KG
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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
    • A47L15/42—Details
    • A47L15/4293—Arrangements for programme selection, e.g. control panels; Indication of the selected programme, programme progress or other parameters of the programme, e.g. by using display panels
    • 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
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a controller for a dishwasher with an input device for selecting a wash program from a plurality of possible programs and with means for controlling program parameters, such as the duration and the temperature profile of individual program sections, wherein the input device comprises a control panel with at least one display means and input elements , wherein by means of at least one input element, a degree of contamination is selectable, and wherein by means of the input of a degree of contamination, a preselection of a basic program from a variety of possible programs takes place, which then depending on the degree of contamination further program options can be assigned.
  • the DE 100 57 210 A1 discloses a method for automatically controlling the rinsing process in a dishwasher, wherein the user can predetermine the degree of soiling of the dishes. Then, the program control takes into account this operating instructions, the washing program and can optionally run depending on other sensor signals, the washing program automatically. It is problematic that the sensor signals for determining the other program parameters can sometimes only poorly indicate the current degree of soiling of the dishes. For example, a slight clouding of the rinse water can either speak for relatively clean dishes or for particularly stubborn dirt that has not yet solved the dishes. In this respect, the automatic sequence of a washing program is problematic.
  • different program options are offered depending on the selected degree of contamination and the basic program set with it.
  • the user no longer needs to make a selection from a variety of programs with associated program parameters, but can make a preselection by specifying a degree of contamination, which greatly simplifies the operation. Because the degree of contamination is visually recognizable by the user and he then only has to decide which priorities should be selected with regard to the other program options. Such a line of the operator is perceived as pleasant, with no need to sacrifice the comfort by providing a variety of possible wash programs.
  • first input means for the selection of the degree of soiling and second input means for the program options are provided. Then the program design can be carried out with reasonable effort via the first and second input means.
  • the degree of contamination can be subdivided into at least three areas, preferably even finer, into six or nine areas.
  • the selection of the degree of contamination can be done using a plus button and a minus button.
  • three input keys may be provided as second input means for the program options in order to make the operation as simple as possible.
  • the operator can be assisted by a display which shows both the set degree of soiling and other parameters. In order to enable the variety of representations, advantageously, a multi-line LCD display is used.
  • the degree of contamination is arranged as a bar chart in an upper line of the display.
  • the program options should be displayed in a lower line of the display and the second input means should be located on the bottom of the display.
  • an information key may be provided, by means of which technical information on the display flushing process can be displayed on the display.
  • the set contamination level and thus the set basic program can be corrected during the program sequence by means of sensor-determined contamination data.
  • control panel 1 of a dishwasher not shown is shown. It comprises a control panel 2, within which a display in the form of an LCD display 3 is arranged.
  • the display 3 is framed on the sides and bottom by a plurality of input means in the form of keys 11-19. Display 3 and buttons 11 to 19 are arranged with one on the back of the panel, in the FIG. 1 not visible, but symbolized as a dashed box control 4 in conjunction.
  • a minus button 11 is provided to the left of the display 3 and a plus button 12 to the right of the display 3. Between the keys 11 and 12 extends in the display 3, a display for representing a degree of contamination in the form of a bar chart 20.
  • the diagram is a total of nine fields 21 to 29 divided, each three fields are combined to a color uniformly marked group.
  • the left group (fields 21 to 23) symbolizes a low pollution, the middle group (fields 24 to 26) a medium pollution and the right group (fields 27 to 29) a heavy pollution.
  • buttons 13 to 15 are provided below the display 3, by means of which further program options can be selected for the set program.
  • An essential feature of the invention is that different program options are offered depending on the selected degree of contamination and the base program set with it and then can be selected.
  • the control according to the invention selects from a multiplicity of possible program options a partial number, in the present case three, and offers this to the user for further selection. It is taken into account that for certain basic programs (soiling) only certain options make sense.
  • the respectively meaningful and therefore selectable options are displayed in the lower line 30 of the display 3 in three areas 31 to 33.
  • a button 16 is also provided with the function start code and a button 17 for starting the selected wash program.
  • a button 18 for switching on and off the dishwasher in the control panel 2 is arranged.
  • a key 19 can be actuated, by means of which the display is switched from the above-described display mode into a text display in which the user is shown supplementary information.
  • the middle part 40 of the display 3 is used to display the remaining time, which may also contain other information and explanations.
  • FIG. 2 the display 3 is shown in a state in which with the keys 11 and 12, a low degree of contamination from the left group, in the present case, field 22 has been set. It is thus selected a program that is adapted for this degree of pollution.
  • This is a program whose sequence is controlled via a turbidity sensor (not shown) and which is varied as a function of the turbidity values measured with this sensor. It has three to five short rinses in the cleaning program section and a maximum temperature of 50 ° C.
  • the program option "Schonen” is offered in the lower row 30 in the left area 31 and assigned to the key 13, in the middle area 32 the program option “fast” to key 14 and in the right area 33 the program option “Night” to key 15.
  • the "Protect” option (key 13) is pressed, the temperature in the cleaning and rinse aid section is reduced, while the "fast” option (key 14) reduces the rinsing and drying times by up to 15 minutes and pressing the "Night" option (button 15) reduces the purge pressure by reducing the circulating pump speed and increases the duration of the cleaning program section.
  • the user has selected a normal or average degree of contamination, namely the field 25 from the middle group.
  • This is a Program whose sequence is also controlled by a turbidity sensor (not shown) and which is varied as a function of the turbidity values measured with this sensor. It has three to five medium-length rinses in the cleaning program section and a maximum temperature of 60 ° C.
  • the lower line 30 offers the program options "Fast” (area 31), “Save” (area 32) and "Night” (area 33). The user can perform the appropriate program diversification by pressing the keys 13, 14 or 15.
  • the rinsing and drying times are reduced by up to 30 minutes and the float temperature during cleaning and rinsing is increased.
  • the Save option reduces energy consumption by reducing the float temperature during cleaning and rinsing. To compensate, the running times for cleaning and drying are extended.
  • the option “night” button 15
  • the purge pressure is reduced by reducing the circulating pump speed and increasing the duration of the cleaning program section and increasing the duration of the rinse program section.
  • FIG. 4 the display is shown in a state in which the user has selected with box 28 a high degree of contamination from the right group.
  • This is a program whose sequence is also controlled via a turbidity sensor (not shown) and which is varied as a function of the turbidity values measured with this sensor. It has three to five long rinses in the cleaning program section and a maximum temperature of 68 ° C. Accordingly, the program options “hygiene” (area 31), "intensive” (area 32) and “night” (area 33) are offered.
  • the "Hygiene” option (button 13) When the "Hygiene” option (button 13) is activated, the float temperature during cleaning is raised to 69 ° C and held for at least ten minutes. Pressing the "Intensive” option (button 14) increases the flushing pressure.
  • the "Night” option (button 15) is activated, the purge pressure is reduced as described above by reducing the circulating pump speed and increasing the duration of the cleaning program section.
  • a rinsing process is carried out, wherein via the controller 4, the rinsing parameters such as the duration, intensity and the temperature profile of individual program sections are specified and then a rinse program with the individual program sections is performed.
  • the parameters are dependent on sensors (not shown) (load, Fleet turbulence, etc.) and changed depending on the preselected program options.
  • the set degree of contamination can serve for the interpretation of the values measured with a turbidity sensor (not shown). If, for example, a high level of contamination is set and only low turbidity values are measured, this can mean that there is persistent contamination that has not yet been removed. Accordingly, the controller 4 adjusts the purging duration and intensity.

Abstract

A washing machine has a control unit (4) with an entry pad for the selection of the washing programme including regulate programme parameters e.g. temperature profile for the individual programmes. The entry pad has a selection zone (2) with a display (3) and selector switches (11-19) one or more of which (11, 12) selects the degree of degree of soiling (21-29) to be processed. This selection (21-29) acts as a pre-selection for the base programme chosen from a range of possible programmes (21-29) linked to supplementary programme options.

Description

Die vorliegende Erfindung betrifft eine Steuerung für einen Geschirrspüler mit einer Eingabeeinrichtung zur Auswahl eines Spülprogramms aus einer Vielzahl möglicher Programme und mit Mitteln zum Steuern von Programmparametern, wie der Dauer und des Temperaturprofils einzelner Programmabschnitte, wobei die Eingabeeinrichtung ein Bedienfeld mit mindestens einem Anzeigemittel und Eingabeelementen umfasst, wobei mittels mindestens eines Eingabeelements ein Verschmutzungsgrad auswählbar ist, und wobei mittels der Eingabe eines Verschmutzungsgrades eine Vorauswahl eines Basisprogramms aus einer Vielzahl möglicher Programme stattfindet, dem dann vom Verschmutzungsgrad abhängige weitere Programmoptionen zuordenbar sind.The present invention relates to a controller for a dishwasher with an input device for selecting a wash program from a plurality of possible programs and with means for controlling program parameters, such as the duration and the temperature profile of individual program sections, wherein the input device comprises a control panel with at least one display means and input elements , wherein by means of at least one input element, a degree of contamination is selectable, and wherein by means of the input of a degree of contamination, a preselection of a basic program from a variety of possible programs takes place, which then depending on the degree of contamination further program options can be assigned.

Die DE 100 57 210 A1 offenbart ein Verfahren zur automatischen Steuerung des Spülprozesses in einer Geschirrspülmaschine, bei der der Benutzer den Verschmutzungsgrad des Geschirrs vorbestimmen kann. Dann übernimmt die Programmsteuerung unter Berücksichtigung dieser Bedienvorgabe das Spülprogramm und kann gegebenenfalls abhängig von weiteren Sensorsignalen das Spülprogramm automatisch ablaufen lassen. Dabei ist problematisch, dass die Sensorsignale zur Bestimmung der weiteren Programmparameter teilweise nur schlecht den aktuellen Verschmutzungsgrad des Geschirrs anzeigen können. Beispielsweise kann eine schwache Eintrübung des Spülwassers entweder für relativ sauberes Geschirr sprechen oder für besonders hartnäckigen Schmutz, der sich noch nicht vom Geschirr gelöst hat. Insofern ist der automatische Ablauf eines Spülprogramms problematisch.The DE 100 57 210 A1 discloses a method for automatically controlling the rinsing process in a dishwasher, wherein the user can predetermine the degree of soiling of the dishes. Then, the program control takes into account this operating instructions, the washing program and can optionally run depending on other sensor signals, the washing program automatically. It is problematic that the sensor signals for determining the other program parameters can sometimes only poorly indicate the current degree of soiling of the dishes. For example, a slight clouding of the rinse water can either speak for relatively clean dishes or for particularly stubborn dirt that has not yet solved the dishes. In this respect, the automatic sequence of a washing program is problematic.

Es gibt auch Steuerungen für Geschirrspüler, bei der aus einer Vielzahl möglicher Programme der Benutzer manuell ein geeignetes Spülprogramm auswählen kann. Da aber Programmparameter, wie Temperatur, Spüldauer, zusätzliche Teilprogramme wie Vorspülen, Reinigen, Klarspülen etc. ebenfalls mit in einem Programm bestimmt werden müssen, wird die Auswahl von einer Vielzahl von Programmen durch den Benutzer als kompliziert empfunden. Ein solches Bedienkonzept mit vielen Schaltern und Auswahlmöglichkeiten wird vom Kunden nicht akzeptiert.There are also controls for dishwashers in which, from a variety of possible programs, the user can manually select a suitable wash program. However, since program parameters such as temperature, purging duration, additional partial programs such as prewash, cleaning, rinsing etc. must also be determined in a program, the selection of a large number of programs by the user is perceived as complicated. Such an operating concept with many switches and selection options is not accepted by the customer.

Es ist daher Aufgabe der vorliegenden Erfindung eine Steuerung für einen Geschirrspüler zu schaffen, die eine Vielzahl von möglichen Spülprogrammen mit diversen Programmparametern ausführen kann, aber leicht zu bedienen ist.It is therefore an object of the present invention to provide a controller for a dishwasher that can perform a variety of possible rinse programs with various program parameters, but is easy to use.

Diese Aufgabe wird mit einer Steuerung mit den Merkmalen des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.This object is achieved with a controller having the features of claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Erfindungsgemäß werden in Abhängigkeit vom gewählten Verschmutzungsgrad und dem damit eingestellten Basisprogramm unterschiedliche Programmoptionen angeboten. Der Benutzer muss daher nicht mehr aus einer Vielzahl von Programmen mit zugehörigen Programmparametern eine Auswahl treffen, sondern kann durch die Vorgabe eines Verschmutzungsgrades eine Vorauswahl vornehmen, was die Bedienung erheblich vereinfacht. Denn der Verschmutzungsgrad ist vom Benutzer visuell erkennbar und er muss dann lediglich entscheiden, welche Prioritäten hinsichtlich der anderen Programmoptionen ausgewählt werden sollen. Eine solche Leitung des Bedieners wird als angenehm empfunden, wobei nicht auf den Komfort durch die Bereitstellung einer Vielzahl möglicher Spülprogramme verzichtet werden muss.According to the invention, different program options are offered depending on the selected degree of contamination and the basic program set with it. The user no longer needs to make a selection from a variety of programs with associated program parameters, but can make a preselection by specifying a degree of contamination, which greatly simplifies the operation. Because the degree of contamination is visually recognizable by the user and he then only has to decide which priorities should be selected with regard to the other program options. Such a line of the operator is perceived as pleasant, with no need to sacrifice the comfort by providing a variety of possible wash programs.

Gemäß einer bevorzugten Ausgestaltung der Erfindung sind erste Eingabemittel für die Wahl des Verschmutzungsgrades und zweite Eingabemittel für die Programmoptionen vorgesehen. Dann kann über die ersten und zweiten Eingabemittel die Programmgestaltung mit zumutbarem Aufwand durchgeführt werden. Der Verschmutzungsgrad kann in mindestens drei Bereiche, vorzugsweise auch noch feiner in sechs oder neun Bereiche unterteilt sein. Die Auswahl des Verschmutzungsgrades kann dabei anhand einer Plustaste und einer Minustaste erfolgen. Ferner können drei Eingabetasten als zweite Eingabemittel für die Programmoptionen vorgesehen sein, um die Bedienung möglichst einfach zu gestalten. Der Bediener kann dabei über ein Display unterstützt werden, das sowohl den eingestellten Verschmutzungsgrad als auch weitere Parameter anzeigt. Um die Vielfalt der Darstellungen zu ermöglichen, wird in vorteilhafter Weise ein mehrzeiliges LCD-Display verwendet. Dabei ist es zur übersichtlichen Darstellung vorteilhaft, wenn der Verschmutzungsgrad als Balkendiagramm in einer oberen Zeile des Displays angeordnet ist. Die Programmoptionen sollten aus dem gleichen Grund in einer unteren Zeile des Displays angezeigt werden und die zweiten Eingabemittel auf der Unterseite des Displays angeordnet sein. Zusätzlich kann eine Informationstaste vorgesehen sein, mittels der auf dem Display technische Informationen zu dem eingestellten Spülvorgang anzeigbar sind.According to a preferred embodiment of the invention, first input means for the selection of the degree of soiling and second input means for the program options are provided. Then the program design can be carried out with reasonable effort via the first and second input means. The degree of contamination can be subdivided into at least three areas, preferably even finer, into six or nine areas. The selection of the degree of contamination can be done using a plus button and a minus button. Furthermore, three input keys may be provided as second input means for the program options in order to make the operation as simple as possible. The operator can be assisted by a display which shows both the set degree of soiling and other parameters. In order to enable the variety of representations, advantageously, a multi-line LCD display is used. It is advantageous for clear presentation, if the degree of contamination is arranged as a bar chart in an upper line of the display. For the same reason, the program options should be displayed in a lower line of the display and the second input means should be located on the bottom of the display. In addition, an information key may be provided, by means of which technical information on the display flushing process can be displayed on the display.

Um Fehleinstellungen zu vermeiden, ist der eingestellte Verschmutzungsgrad und damit das eingestellte Basisprogramm während des Programmablaufs durch sensorisch ermittelte Verschmutzungsdaten korrigierbar.In order to avoid incorrect settings, the set contamination level and thus the set basic program can be corrected during the program sequence by means of sensor-determined contamination data.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt:

Figur 1
eine Blende eines Geschirrspülers für eine erfindungsgemäße Steuerung;
Figur 2
eine Ansicht der Blende für einen leichten Verschmutzungsgrad;
Figur 3
eine Ansicht der Blende für einen normalen Verschmutzungsgrad;
Figur 4
eine Ansicht der Blende für einen starken Verschmutzungsgrad;
An embodiment of the invention is shown schematically in the drawings and will be described in more detail below. It shows:
FIG. 1
a panel of a dishwasher for a controller according to the invention;
FIG. 2
a view of the aperture for a slight degree of contamination;
FIG. 3
a view of the aperture for a normal degree of contamination;
FIG. 4
a view of the aperture for a high degree of contamination;

In Figur 1 ist die Bedienblende 1 eines nicht weiter dargestellten Geschirrspülers gezeigt. Sie umfasst ein Bedienfeld 2, innerhalb dessen eine Anzeige in Form eines LCD-Displays 3 angeordnet ist. Das Display 3 wird auf den Seiten und unten von einer Vielzahl von Eingabemitteln in Form von Tasten 11 bis 19 umrahmt. Display 3 und Tasten 11 bis 19 stehen mit einer auf der Rückseite der Blende angeordneten, in der Figur 1 nicht sichtbaren, aber als gestrichelter Kasten symbolisierten Steuerung 4 in Verbindung.In FIG. 1 the control panel 1 of a dishwasher not shown is shown. It comprises a control panel 2, within which a display in the form of an LCD display 3 is arranged. The display 3 is framed on the sides and bottom by a plurality of input means in the form of keys 11-19. Display 3 and buttons 11 to 19 are arranged with one on the back of the panel, in the FIG. 1 not visible, but symbolized as a dashed box control 4 in conjunction.

Zur Auswahl des Verschmutzungsgrades des Geschirrs ist links vom Display 3 eine Minustaste 11 und rechts vom Display 3 eine Plustaste 12 vorgesehen. Zwischen den Tasten 11 und 12 erstreckt sich im Display 3 eine Anzeige zur Darstellung eines Verschmutzungsgrads in Form eines Balken-Diagramms 20. Das Diagramm ist insgesamt in neun Felder 21 bis 29 unterteilt, wobei jeweils drei Felder zu einer farblich einheitlich markierten Gruppe zusammengefasst sind. Die linke Gruppe (Felder 21 bis 23) symbolisiert eine geringe Verschmutzung, die mittlere Gruppe (Felder 24 bis 26) eine mittlere Verschmutzung und die rechte Gruppe (Felder 27 bis 29) eine starke Verschmutzung. Durch einmaliges Drücken der Plustaste 12 wird der Farbton des Felds 21 in einen dunkleren Ton geändert, mehrmaliges Drücken der Taste lässt den dunkleren Farbton nach rechts wandern, so dass der gewählte Verschmutzungsgrad gesteigert wird (siehe Figuren 2 bis 4). Beim Drücken der Minustaste 11 wandert die Verdunkelung nach links, der Verschmutzungsgrad wird dadurch wieder verringert.To select the degree of soiling of the dishes, a minus button 11 is provided to the left of the display 3 and a plus button 12 to the right of the display 3. Between the keys 11 and 12 extends in the display 3, a display for representing a degree of contamination in the form of a bar chart 20. The diagram is a total of nine fields 21 to 29 divided, each three fields are combined to a color uniformly marked group. The left group (fields 21 to 23) symbolizes a low pollution, the middle group (fields 24 to 26) a medium pollution and the right group (fields 27 to 29) a heavy pollution. By pressing the plus button 12 once, the color tone of the field 21 is changed to a darker tone, repeated pressing of the button causes the darker hue to move to the right, so that the selected degree of soiling is increased (see FIGS. 2 to 4 ). When the minus key 11 is pressed, the darkening moves to the left, thus reducing the degree of contamination.

Abhängig vom eingestellten Verschmutzungsgrad wird dann eine Vorauswahl für ein daran angepasstes Basisprogramm getroffen.Depending on the set degree of contamination, a preselection is then made for a base program adapted to it.

Unterhalb des Displays 3 sind drei Tasten 13 bis 15 vorgesehen, mittels derer zum eingestellten Programm weitere Programmoptionen gewählt werden können. Wesentliches Merkmal der Erfindung ist dabei, dass in Abhängigkeit vom gewählten Verschmutzungsgrad und dem damit eingestellten Basisprogramm unterschiedliche Programmoptionen angeboten werden und dann wählbar sind. Dabei wählt die erfindungsgemäße Steuerung aus einer Vielzahl von möglichen Programmoptionen eine Teilzahl, im vorliegenden Fall drei, aus und bietet diese dem Benutzer zur weiteren Auswahl an. Es wird berücksichtigt, dass für verschiedene Basisrogramme (Verschmutzungen) auch nur bestimmte Optionen sinnvoll sind. Die jeweils sinnvollen und deshalb wählbaren Optionen werden in der unteren Zeile 30 des Displays 3 in drei Bereichen 31 bis 33 angezeigt.Below the display 3, three buttons 13 to 15 are provided, by means of which further program options can be selected for the set program. An essential feature of the invention is that different program options are offered depending on the selected degree of contamination and the base program set with it and then can be selected. In this case, the control according to the invention selects from a multiplicity of possible program options a partial number, in the present case three, and offers this to the user for further selection. It is taken into account that for certain basic programs (soiling) only certain options make sense. The respectively meaningful and therefore selectable options are displayed in the lower line 30 of the display 3 in three areas 31 to 33.

Im Bedienfeld 2 ist ferner eine Taste 16 mit der Funktion Startvorwahl sowie eine Taste 17 für das Starten des gewählten Spülprogramms vorgesehen. Zudem ist eine Taste 18 zum Ein- und Ausschalten des Geschirrspülers im Bedienfeld 2 angeordnet. Um dem Benutzer bei Bedarf weitere Informationen zu den gewählten bzw. angezeigten Programmen zu geben, kann eine Taste 19 betätigt werden, mittels der das Display vom vorbeschriebenen Anzeigemodus in eine Textdarstellung umgeschaltet wird, in der dem Benutzer ergänzende Informationen angezeigt werden.In the control panel 2, a button 16 is also provided with the function start code and a button 17 for starting the selected wash program. In addition, a button 18 for switching on and off the dishwasher in the control panel 2 is arranged. To give the user more information on the selected or displayed programs, if necessary, a key 19 can be actuated, by means of which the display is switched from the above-described display mode into a text display in which the user is shown supplementary information.

Der Mittelteil 40 des Displays 3 dient zur Anzeige der Restlaufzeit, wobei dort auch andere Angaben und Erläuterungen enthalten sein können.The middle part 40 of the display 3 is used to display the remaining time, which may also contain other information and explanations.

In Figur 2 ist das Display 3 in einem Zustand gezeigt, in dem mit den Tasten 11 bzw. 12 ein geringer Verschmutzungsgrad aus der linken Gruppe, im vorliegenden Fall Feld 22 eingestellt wurde. Es wird damit ein Programm ausgewählt, welches für diesen Verschmutzungsgrad angepasst ist. Dabei handelt es sich um ein Programm, dessen Ablauf über einen Trübungssensor (nicht dargestellt) gesteuert ist und welches in Abhängigkeit von den mit diesem Sensor gemessenen Trübungswerten variiert wird. Es besitzt drei bis fünf kurze Spülgänge im Reinigungs-Programmabschnitt und eine Maximaltemperatur von 50°C. Aufgrund der Vorauswahl des geringen Verschmutzungsgrades aus dieser Gruppe wird in der unteren Zeile 30 im linken Bereich 31 die Programmoption "Schonen" angeboten und der Taste 13 zugeordnet, im mittleren Bereich 32 die Programmoption "Schnell" zu Taste 14 und im rechten Bereich 33 die Programmoption "Nacht" zu Taste 15. Bei Betätigung der Option "Schonen" (Taste 13) wird die Temperatur im Reinigungs- und Klarspülprogrammabschnitt reduziert, bei Betätigung der Option "Schnell" (Taste 14) werden die Spül- und Trockenzeiten bis zu 15 min reduziert, und bei Betätigung der Option "Nacht" (Taste 15) wird der Spüldruck durch Verringerung der Umwälzpumpen-Drehzahl reduziert und die Dauer des Reinigungs-Programmabschnitts erhöht. Eine Veränderung des Verschmutzungsgrades innerhalb der linken Gruppe zu Feld 21 oder Feld 23 würde zwar keine Veränderung des Programmoptions-Angebot hervorrufen, es würde aber das Basisprogramm geändert, beispielsweise in Richtung längerer oder kürzerer Dauern des Reinigungs-Programmabschnitts und höhere Flottentemperaturen. Dabei kann es dahingestellt bleiben, ob als Basisprogramm die drei ähnlichen Programme einer gesamten Gruppe, die sich nur durch Laufzeiten unterscheiden, zusammengefasst werden, oder ob als Basisprogramm das jedem einstellbaren Verschmutzungsgrad zugeordnete individuelle Programm bezeichnet wird. Es ist auch denkbar, dass sich die Programme einer Gruppe alternativ oder zusätzlich durch andere Parameter unterscheiden.In FIG. 2 the display 3 is shown in a state in which with the keys 11 and 12, a low degree of contamination from the left group, in the present case, field 22 has been set. It is thus selected a program that is adapted for this degree of pollution. This is a program whose sequence is controlled via a turbidity sensor (not shown) and which is varied as a function of the turbidity values measured with this sensor. It has three to five short rinses in the cleaning program section and a maximum temperature of 50 ° C. Due to the pre-selection of the low degree of contamination from this group, the program option "Schonen" is offered in the lower row 30 in the left area 31 and assigned to the key 13, in the middle area 32 the program option "fast" to key 14 and in the right area 33 the program option "Night" to key 15. When the "Protect" option (key 13) is pressed, the temperature in the cleaning and rinse aid section is reduced, while the "fast" option (key 14) reduces the rinsing and drying times by up to 15 minutes and pressing the "Night" option (button 15) reduces the purge pressure by reducing the circulating pump speed and increases the duration of the cleaning program section. Although changing the degree of contamination within the left group to box 21 or box 23 would not cause a change in the program option offer, it would change the basic program, for example towards longer or shorter durations of the cleaning program section and higher fleet temperatures. It can be left open whether the three similar programs of an entire group, which differ only by running times, are summarized as the basic program, or whether the basic program is the individual program assigned to each adjustable degree of contamination. It is also conceivable that the programs of a group differ alternatively or additionally by other parameters.

Bei dem Display in Figur 3 hat der Benutzer einen normalen bzw. mittleren Verschmutzungsgrad ausgewählt, nämlich das Feld 25 aus der mittleren Gruppe. Dabei handelt es sich um ein Programm, dessen Ablauf auch über einen Trübungssensor (nicht dargestellt) gesteuert ist und welches in Abhängigkeit von den mit diesem Sensor gemessenen Trübungswerten variiert wird. Es besitzt drei bis fünf mittellange Spülgänge im Reinigungs-Programmabschnitt und eine Maximaltemperatur von 60°C. Es werden in der unteren Zeile 30 die Programmoptionen "Schnell" (Bereich 31), "Sparen" (Bereich 32) und "Nacht" (Bereich 33) angeboten. Der Benutzer kann durch Drücken der Tasten 13, 14 oder 15 die entsprechende Programmdiversifizierung vornehmen. Bei Betätigung der Option "Schnell" (Taste 13) werden die Spül- und Trockenzeiten bis zu 30 min reduziert und die Flottentemperatur beim Reinigen und Klarspülen erhöht. Bei Betätigung der Option "Sparen" (Taste 14) wird der Energieverbrauch reduziert, indem die Flottentemperatur beim Reinigen und Klarspülen reduziert wird. Zum Ausgleich werden die Laufzeiten beim Reinigen und Trocknen verlängert. Bei Betätigung der Option "Nacht" (Taste 15) wird wie bereits oben beschrieben der Spüldruck durch Verringerung der Umwälzpumpen-Drehzahl reduziert und die Dauer des Reinigungs-Programmabschnitts erhöht, außerdem wird die Dauer des Klarspül-Programmabschnitts erhöht.At the display in FIG. 3 the user has selected a normal or average degree of contamination, namely the field 25 from the middle group. This is a Program whose sequence is also controlled by a turbidity sensor (not shown) and which is varied as a function of the turbidity values measured with this sensor. It has three to five medium-length rinses in the cleaning program section and a maximum temperature of 60 ° C. The lower line 30 offers the program options "Fast" (area 31), "Save" (area 32) and "Night" (area 33). The user can perform the appropriate program diversification by pressing the keys 13, 14 or 15. By pressing the "Fast" option (button 13), the rinsing and drying times are reduced by up to 30 minutes and the float temperature during cleaning and rinsing is increased. Using the Save option (button 14) reduces energy consumption by reducing the float temperature during cleaning and rinsing. To compensate, the running times for cleaning and drying are extended. By operating the option "night" (button 15), as described above, the purge pressure is reduced by reducing the circulating pump speed and increasing the duration of the cleaning program section and increasing the duration of the rinse program section.

In Figur 4 ist das Display in einem Zustand gezeigt, in dem der Benutzer mit Feld 28 einen starken Verschmutzungsgrad aus der rechten Gruppe ausgewählt hat. Dabei handelt es sich um ein Programm, dessen Ablauf auch über einen Trübungssensor (nicht dargestellt) gesteuert ist und welches in Abhängigkeit von den mit diesem Sensor gemessenen Trübungswerten variiert wird. Es besitzt drei bis fünf lange Spülgänge im Reinigungs-Programmabschnitt und eine Maximaltemperatur von 68°C. Entsprechend werden die Programmoptionen "Hygiene" (Bereich 31), "Intensiv" (Bereich 32) und "Nacht" (Bereich 33) angeboten. Bei Betätigung der Option "Hygiene" (Taste 13) wird die Flottentemperatur beim Reinigen auf 69°C erhöht und mindestens zehn Minuten gehalten. Bei Betätigung der Option "Intensiv" (Taste 14) wird der Spüldruck erhöht. Bei Betätigung der Option "Nacht" (Taste 15) wird wie bereits oben beschrieben der Spüldruck durch Verringerung der Umwälzpumpen-Drehzahl reduziert und die Dauer des Reinigungs-Programmabschnitts erhöht.In FIG. 4 the display is shown in a state in which the user has selected with box 28 a high degree of contamination from the right group. This is a program whose sequence is also controlled via a turbidity sensor (not shown) and which is varied as a function of the turbidity values measured with this sensor. It has three to five long rinses in the cleaning program section and a maximum temperature of 68 ° C. Accordingly, the program options "hygiene" (area 31), "intensive" (area 32) and "night" (area 33) are offered. When the "Hygiene" option (button 13) is activated, the float temperature during cleaning is raised to 69 ° C and held for at least ten minutes. Pressing the "Intensive" option (button 14) increases the flushing pressure. When the "Night" option (button 15) is activated, the purge pressure is reduced as described above by reducing the circulating pump speed and increasing the duration of the cleaning program section.

Die Wahl des Programms "Nacht" ist in allen Verschmutzungsgraden möglich, da der Benutzer möglicherweise ein Interesse daran hat, einen besonders leisen Spülbetrieb zu gewährleisten. Bei diesem Programm wird daher die Pumpenleistung auf ein niedriges Niveau abgesenkt und die Spüldauer entsprechend verlängert. Die übrigen Programmdiversifikationen, die sich durch die unterschiedlichen Verschmutzungsgrade ergeben, bleiben natürlich erhalten.The choice of the program "night" is possible in all levels of contamination, since the user may have an interest in ensuring a particularly quiet flushing operation. In this program, therefore, the pump power is lowered to a low level and the rinsing time extended accordingly. The other program diversifications, which result from the different degrees of contamination, of course remain.

Nach Auswahl des Programms wird ein Spülvorgang durchgeführt, wobei über die Steuerung 4 die Spülparameter wie die Dauer, Intensität und das Temperaturprofil einzelner Programmabschnitte vorgegeben werden und dann ein Spülprogramm mit den einzelnen Programmabschnitten durchgeführt wird. Die Parameter werden in Abhängigkeit von mit Sensoren (nicht dargestellt) ermittelten Daten (Beladung, Flottentrübung etc.) und in Abhängigkeit von den vorgewählten Programmoptionen verändert. Dabei kann der eingestellte Verschmutzungsgrad zur Interpretation der mit einem Trübungssensor (nicht dargestellt) gemessenen Werte dienen. Ist beispielsweise ein hoher Verschmutzungsgrad eingestellt und es werden nur geringe Trübungswerte gemessen, kann dies bedeuten, dass eine hartnäckige Verschmutzung vorliegt, die noch nicht abgelöst wurde. Dementsprechend passt die Steuerung 4 die Spüldauer und Intensität an.After selecting the program, a rinsing process is carried out, wherein via the controller 4, the rinsing parameters such as the duration, intensity and the temperature profile of individual program sections are specified and then a rinse program with the individual program sections is performed. The parameters are dependent on sensors (not shown) (load, Fleet turbulence, etc.) and changed depending on the preselected program options. The set degree of contamination can serve for the interpretation of the values measured with a turbidity sensor (not shown). If, for example, a high level of contamination is set and only low turbidity values are measured, this can mean that there is persistent contamination that has not yet been removed. Accordingly, the controller 4 adjusts the purging duration and intensity.

Außerdem ist mit der Wahl des Verschmutzungsgrads eine "Justierung" der Parameter durch den Benutzer möglich; eine Person, die selbst kleinste Schmutzrückstände bemängelt, wird tendenziell höhere Verschmutzungsgrade anwählen als ein Kunde, der auch mit weniger guten Spülergebnissen zufrieden ist.In addition, with the choice of the degree of contamination, an "adjustment" of the parameters by the user possible; a person who criticizes even the smallest of debris will tend to select higher levels of contamination than a customer who is also satisfied with less good scavenging results.

Claims (11)

Steuerung (4) für einen Geschirrspüler mit einer Eingabeeinrichtung zur Auswahl eines Spülprogramms aus einer Vielzahl möglicher Programme und mit Mitteln zum Steuern von Programmparametern, wie der Dauer und des Temperaturprofils einzelner Programmabschnitte, wobei die Eingabeeinrichtung ein Bedienfeld (2) mit mindestens einem Anzeigemittel (3) und Eingabeelementen (11 bis 19) umfasst, wobei mittels mindestens eines Eingabeelements (11, 12) ein Verschmutzungsgrad (21 bis 29) auswählbar ist, und wobei mittels der Eingabe eines Verschmutzungsgrades (21 bis 29) eine Vorauswahl eines Basisprogramms aus einer Vielzahl möglicher Programme stattfindet, dem dann vom Verschmutzungsgrad (21 bis 29) abhängige weitere Programmoptionen zuordenbar sind,
dadurch gekennzeichnet,
dass in Abhängigkeit vom gewählten Verschmutzungsgrad (21 bis 29) und dem damit eingestellten Basisprogramm unterschiedliche Programmoptionen angeboten werden.A controller (4) for a dishwasher having an input device for selecting a wash program from a plurality of possible programs and having means for controlling program parameters such as the duration and temperature profile of individual program sections, the input device comprising a control panel (2) having at least one display means (3 ) and input elements (11 to 19), wherein by means of at least one input element (11, 12) a degree of pollution (21 to 29) is selectable, and wherein by means of the input of a degree of pollution (21 to 29) a preselection of a basic program of a plurality of possible Programs, which can then be assigned to further program options depending on the degree of pollution (21 to 29),
characterized,
that different program options are offered depending on the selected degree of contamination (21 to 29) and the basic program set with it. Steuerung nach Anspruch 1,
dadurch gekennzeichnet,
dass erste Eingabemittel (11, 12) für die Wahl des Verschmutzungsgrades (21 bis 29) und zweite Eingabemittel (13 bis 15) für die Programmoptionen vorgesehen sind.Control according to claim 1,
characterized,
in that first input means (11, 12) for the selection of the degree of soiling (21 to 29) and second input means (13 to 15) for the program options are provided. Steuerung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass der Verschmutzungsgrad (21 bis 29) in mindestens drei Bereiche, vorzugsweise in sechs oder neun Bereiche unterteilt ist.Control according to claim 1 or 2,
characterized,
that the degree of contamination is divided (21 to 29) in at least three ranges, preferably into six or nine ranges. Steuerung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass über eine Plustaste (12) und eine Minustaste (11) der eingestellte Verschmutzungsgrad (21 bis 29) veränderbar ist.Control according to one of claims 1 to 3,
characterized,
in that the set degree of soiling (21 to 29) can be changed by means of a plus button (12) and a minus button (11). Steuerung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass drei Eingabetasten (13 bis 15) als zweite Eingabemittel für die Programmoptionen vorgesehen sind.Control according to one of claims 1 to 4,
characterized,
in that three input keys (13 to 15) are provided as second input means for the program options. Steuerung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass ein Display (3) vorgesehen ist, in dem der eingestellte Verschmutzungsgrad und die mögliche Auswahl weiterer Parameter anzeigbar ist.Control according to one of claims 1 to 5,
characterized,
that a display (3) is provided, in which the set degree of contamination and the possible selection of further parameters can be displayed. Steuerung nach Anspruch 6,
dadurch gekennzeichnet,
dass das Display (3) als mehrzeiliges LCD-Display ausgebildet ist.Control according to claim 6,
characterized,
that the display (3) is designed as a multi-line LCD display. Steuerung nach Anspruch 6 oder 7,
dadurch gekennzeichnet,
dass der Verschmutzungsgrad (21 bis 29) als Balkendiagramm (20) in einer oberen Zeile des Displays (3) angeordnet ist.Control according to claim 6 or 7,
characterized,
that the degree of soiling (21 to 29) as a bar chart (20) is arranged in an upper line of the display (3). Steuerung nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet,
dass die Programmoptionen (31 bis 33) in einer unteren Zeile (30) des Displays (3) angezeigt werden und die zweiten Eingabemittel (13 bis 15) auf der Unterseite des Displays (3) angeordnet sind.Control according to one of claims 6 to 8,
characterized,
that the program options (31 through 33) are displayed in a lower line (30) of the display (3) and the second input means (13 to 15) on the underside of the display (3) are arranged. Steuerung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet,
dass eine Informationstaste (19) vorgesehen ist, mittels der auf dem Display (3) technische Informationen zu dem eingestellten Spülvorgang anzeigbar sind.Control according to one of claims 1 to 9,
characterized,
in that an information key (19) is provided by means of which technical information about the set flushing process can be displayed on the display (3). Steuerung nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet,
dass der eingestellte Verschmutzungsgrad (21 bis 29) und damit das eingestellte Basisprogramm während des Programmablaufs durch sensorisch ermittelte Verschmutzungsdaten korrigierbar ist.Control according to one of claims 1 to 10,
characterized,
that the set degree of contamination (21 to 29) and thus the set basic program can be corrected during the program sequence by sensorily determined contamination data.
EP08010411A 2007-06-25 2008-06-07 Control for a dishwasher Active EP2008567B1 (en)

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US20080314423A1 (en) 2008-12-25
ATE439794T1 (en) 2009-09-15
EP2008567B1 (en) 2009-08-19

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