EP0835955B1 - Programme controlled washing machine - Google Patents

Programme controlled washing machine Download PDF

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Publication number
EP0835955B1
EP0835955B1 EP97116203A EP97116203A EP0835955B1 EP 0835955 B1 EP0835955 B1 EP 0835955B1 EP 97116203 A EP97116203 A EP 97116203A EP 97116203 A EP97116203 A EP 97116203A EP 0835955 B1 EP0835955 B1 EP 0835955B1
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EP
European Patent Office
Prior art keywords
laundry
program
washing
parameter
washload
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.)
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EP97116203A
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German (de)
French (fr)
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EP0835955B2 (en
EP0835955A3 (en
EP0835955A2 (en
Inventor
Wolfgang Hellhake
Regine Hockeler
Dirk Sieding
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Miele und Cie KG
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Miele und Cie KG
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Priority claimed from DE19641819A external-priority patent/DE19641819C2/en
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D06F2101/06—Type or material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/12—Washing temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/06—Type or material
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed
    • 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
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight

Definitions

  • the invention relates to a washing machine with a control panel in the rotary selector switch and / or pressure switches are arranged, which are used to set a type of fabric (hot wash / Colored laundry, easy care, wool) and the temperature-dependent washing program and for setting a program for washing a laundry item, which consists of laundry items different types of tissue is composed, serve and with a program control, the set program taking into account the program parameters defined for it executing.
  • the invention also relates to a method for washing a Linen item, which is composed of laundry items of different types of fabric is.
  • a washing machine of the aforementioned type is from the company Candy under the name CT 946 T sold.
  • This washing machine can be used for a colourfast load mix of 2 kg (recommended maximum load) of colored laundry and easy-care textiles is a so-called Universal program can be selected.
  • a disadvantage is that the program parameters used in the universal program with regard to washing speed, Water level and washing time are set. To ensure adequate security against laundry damage and to ensure creasing, these program parameters are largely those adapted to an easy-care program. With a high proportion of heavily soiled Colored laundry therefore becomes a poor washing result due to the reduced washing mechanism reached.
  • the CT 946 T spins the laundry in front of the Rinse cycles (intermediate spin) and at the end of the program (final spin) hidden.
  • the user buys the comfort gained due to the missing intermediate sluices with a poorer washing result and with the Necessity, the final spin by an additionally selected spin program to have to perform. Then there is also the risk that at a high Proportion of easy-care textiles an excessively high spin speed is selected.
  • Washing machines are known from EP 0 159 202 A1 and from FR-A-2 484 487 those at the beginning of the program laundry parameters (suction behavior of the laundry, laundry weight) be determined from which a conclusion on the composition of the laundry item is possible.
  • laundry parameters suction behavior of the laundry, laundry weight
  • considerable errors can arise here, which in the worst case lead to one Destruction of the laundry.
  • the wicking behavior of wool is similar to that of highly absorbent Cotton, for example terry towels. These two textiles are very different strong in terms of their allowable treatment. While high temperatures and high washing and spin speeds possible and to achieve a good washing result are also desired, they cause felting in wool.
  • the invention thus poses the problem with a washing machine or a washing method to optimize the washing or rinsing effect of the type mentioned at the same time to ensure easy operation.
  • the advantage achievable with the invention is the automatic consideration of the Composition of the laundry. This gives the user a high degree of Ease of use offered because of the sorting of the laundry and the need for a separation of colored laundry and easy-care textiles is eliminated. On the other hand, there is still a high degree given safety, good washing and rinsing results with every composition of the laundry to obtain. Limiting the spin speed also increases the risk an incorrect setting avoided.
  • the washing machine has a control panel (1) with a rotary selector switch (2), via the washing programs depending on the type of fabric, such as cottons / colored clothes, Delicates, easy care or wool can be adjusted. Via push buttons (3) these programs can be varied using additional functions. By one on the Rotary selector switch (2) integrated temperature selection, these programs can be different Temperature values can be assigned. In addition to the programs for special fabrics, For example, 60 ° C (4) cottons can use the rotary selector switch (2) to run a mixed laundry program (5) can be set. This program enables a true color Load mix of a maximum of 3 kg of colored laundry and easy-care textiles at a fixed temperature wash at 40 ° C.
  • the washing program is in in a known manner by means of a microprocessor control (6) with regard to its program parameters, Lye temperature, drum speed, amount of water, washing time, etc. affected.
  • the washing machine constructed according to the invention has a tub (8) and a level detection device known from DE 44 38 760 A1 for detecting at least two levels, namely of a first filling level N max and a second level N min below N max .
  • a time measuring device (7) which measures the suction times t si from reaching the first filling level N max until the water level drops to the level N min .
  • the levels are detected by an analog pressure sensor ADS (9), which transmits water level-dependent pressure values p i (N) in the form of a measuring voltage U pi (N) to the microprocessor control, which in turn converts them into levels.
  • an input check (A) of the pressure value p is carried out by the ADS (9), um Determine whether there is still residual water in the washing machine's tub (8) or the laundry has been soaked to drip. If this is the case, the washing program will be on the safe side continued as an easy care program because of the time recording facility No more suction times can be determined based on the composition of the laundry let close.
  • N max the filling process is ended by closing the solenoid valve and the drum is rotated at a speed of 40 rpm. The laundry absorbs some of the water filled into the tub (8).
  • the microprocessor control (6) uses this first suction time to determine the composition of the laundry item. With a suction time t s1 of more than 30 seconds, an easy-care program is continued. If the suction time is less than 30 seconds, the washing program is continued as a modified cottons / colored clothes program.
  • the lye temperature is either set to 40 ° C (variant 1) or regulated to a value selected by the user (variant 2).
  • the water level during washing is increased to 65 mmWs compared to conventional boil-wash programs (45 mmWs).
  • the spin speed is also limited to 900 rpm regardless of the size selected.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The washing machine has a program selection to set the type of fabric in the garments being washed and the washing program according to the required washing temperature with a mixed load of different types of garment fabrics. The program control operates the washing machine cycles according to the program parameters. A unit measures the volume of the load and/or the parameters according to the type of load. A further program has at least two program sections in the main washing program, where one is selected according to the measured parameters.

Description

Die Erfindung betrifft eine Waschmaschine mit einem Bedienfeld, in dem Drehwahlschalter und/oder Druckschalter angeordnet sind, die zur Einstellung eines von der Gewebeart (Kochwäsche/ Buntwäsche, Pflegeleicht, Wolle) und der Temperatur abhängigen Waschprogramms und zur Einstellung eines Programms zum Waschen eines Wäschepostens, der aus Wäschestücken unterschiedlicher Gewebearten zusammengesetzt ist, dienen und mit einer Programmsteuerung, die das eingestellte Programm unter Berücksichtgung dafür festgelegter Programmparameter abarbeitet. Außerdem betrifft die Erfindung ein Verfahren zum Waschen eines Wäschepostens, der aus Wäschestücken unterschiedlicher Gewebearten zusammengesetzt ist.The invention relates to a washing machine with a control panel in the rotary selector switch and / or pressure switches are arranged, which are used to set a type of fabric (hot wash / Colored laundry, easy care, wool) and the temperature-dependent washing program and for setting a program for washing a laundry item, which consists of laundry items different types of tissue is composed, serve and with a program control, the set program taking into account the program parameters defined for it executing. The invention also relates to a method for washing a Linen item, which is composed of laundry items of different types of fabric is.

Eine Waschmaschine der vorgenannten Art wird von der Fa. Candy unter der Bezeichnung CT 946 T vertrieben. Bei dieser Waschmaschine kann für einen farbechten Beladungsmix von 2 kg (empfohlene Maximalbeladung) aus Buntwäsche und pflegeleichten Textilien ein sogenanntes Universalprogramm gewählt werden. Hierdurch wird dem Benutzer der Vorteil geboten, daß er seine Wäsche nicht mehr vorsortieren muß. Als nachteilig ist dabei anzusehen, daß die im Universalprogramm verwendeten Programmparameter bezüglich Waschdrehzahl, Wasserstand und Waschzeit festgelegt sind. Um ausreichende Sicherheit vor Wäscheschä den und Knitterbildung zu gewährleisten, sind diese Programmparameter weitestgehend denen eines Pflegeleicht-Programms angepasst. Bei einem hohen Anteil stark verschmutzter Buntwäsche wird deshalb aufgrund der verringerten Waschmechanik ein schlechtes Waschergebnis erreicht. Außerdem ist bei der CT 946 T das Schleudern der Wäsche sowohl vor den Spülgängen (Zwischenschleudern) als auch zum Programmende (Endschleudem) ausgeblendet. Der Benutzer erkauft sich also den gewonnenen Komfort aufgrund des fehlenden Zwischenschleudems mit einem schlechteren Spülergebnis und mit der Notwendigkeit, das Endschleudern durch ein zusätzlich gewähltes Schleuderprogramm durchführen zu müssen. Dabei besteht dann auch noch die Gefahr, dass bei einem hohen Anteil von pflegeleichten Textilien eine zu hohe Schleuderdrehzahl gewählt wird.A washing machine of the aforementioned type is from the company Candy under the name CT 946 T sold. This washing machine can be used for a colourfast load mix of 2 kg (recommended maximum load) of colored laundry and easy-care textiles is a so-called Universal program can be selected. This offers the user the advantage of that he no longer has to sort his laundry. A disadvantage is that the program parameters used in the universal program with regard to washing speed, Water level and washing time are set. To ensure adequate security against laundry damage and to ensure creasing, these program parameters are largely those adapted to an easy-care program. With a high proportion of heavily soiled Colored laundry therefore becomes a poor washing result due to the reduced washing mechanism reached. In addition, the CT 946 T spins the laundry in front of the Rinse cycles (intermediate spin) and at the end of the program (final spin) hidden. The user buys the comfort gained due to the missing intermediate sluices with a poorer washing result and with the Necessity, the final spin by an additionally selected spin program to have to perform. Then there is also the risk that at a high Proportion of easy-care textiles an excessively high spin speed is selected.

Aus der EP 0 159 202 A1 und aus der FR-A-2 484 487 sind Waschmaschinen bekannt, bei denen zu Programmbeginn Wäscheparameter (Saugverhalten der Wäsche, Wäschegewicht) bestimmt werden, aus denen ein Rückschluss auf die Zusammensetzung des Wäschepostens möglich ist. Hierbei können jedoch erhebliche Fehler entstehen, die schlimmstenfalls zu einer Zerstörung der Wäsche führen. Das Saugverhalten von Wolle gleicht dem von stark saugfähiger Baumwolle, beispielsweise Frottier. Diese beiden Textilien unterscheiden sich aber sehr stark hinsichtlich ihrer zulässigen Behandlung. Während bei Frottier hohe Temperaturen und hohe Wasch- und Schleuderdrehzahlen möglich und zur Erzielung eines guten Waschergebnisses auch gewünscht sind, führen sie bei Wolle zum Verfilzen.Washing machines are known from EP 0 159 202 A1 and from FR-A-2 484 487 those at the beginning of the program laundry parameters (suction behavior of the laundry, laundry weight) be determined from which a conclusion on the composition of the laundry item is possible. However, considerable errors can arise here, which in the worst case lead to one Destruction of the laundry. The wicking behavior of wool is similar to that of highly absorbent Cotton, for example terry towels. These two textiles are very different strong in terms of their allowable treatment. While high temperatures and high washing and spin speeds possible and to achieve a good washing result are also desired, they cause felting in wool.

Der Erfindung stellt sich somit das Problem, bei einer Waschmaschine bzw. einem Waschverfahren der eingangs genannten Art die Wasch- bzw. Spülwirkung zu optimieren und gleichzeitig eine einfache Bedienung zu gewährleisten.The invention thus poses the problem with a washing machine or a washing method to optimize the washing or rinsing effect of the type mentioned at the same time to ensure easy operation.

Erfindungsgemäß wird dieses Problem durch eine Waschmaschine und durch ein Waschverfahren mit den Merkmalen der unabhängigen Patentansprüche gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen des erfindungsgemäßen Waschverfahrens ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a washing machine and by a washing method solved with the features of the independent claims. Advantageous configurations and further developments of the washing method according to the invention result from the following subclaims.

Der mit der Erfindung erreichbare Vorteil besteht in der automatischen Berücksichtigung der Zusammensetzung der Wäsche. Hierdurch wird dem Benutzer zum einen ein hohes Maß an Bedienkomfort geboten, da das Sortieren der Wäsche und die Notwendigkeit einer Trennung von Buntwäsche und pflegeleichten Textilien entfällt. Zum anderen ist trotzdem ein hohes Maß an Sicherheit gegeben, bei jeder Zusammensetzung der Wäsche ein gutes Wasch- und Spülergebnis zu erhalten. Bei einer Begrenzung der Schleuderdrehzahl wird zudem noch die Gefahr einer Fehleinstellung vermieden.The advantage achievable with the invention is the automatic consideration of the Composition of the laundry. This gives the user a high degree of Ease of use offered because of the sorting of the laundry and the need for a separation of colored laundry and easy-care textiles is eliminated. On the other hand, there is still a high degree given safety, good washing and rinsing results with every composition of the laundry to obtain. Limiting the spin speed also increases the risk an incorrect setting avoided.

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

Figur 1
Das Bedienfeld (1) eines erfindungsgemäß aufgebauten Waschautomaten
Figur 2
den Programmablaufplan eines Mischwäsche-Programms (5), welches das erfindungsgemäße Verfahren beinhaltet.
An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows:
Figure 1
The control panel (1) of a washing machine constructed according to the invention
Figure 2
the program flow chart of a mixed laundry program (5), which contains the inventive method.

Die erfindungsgemäße Waschmaschine besitzt ein Bedienfeld (1) mit einem Drehwahlschalter (2), über den von der Gewebeart abhängige Waschprogramme wie Kochwäsche/Buntwäsche, Feinwäsche, Pflegeleicht oder Wolle eingestellt werden können. Über Drucktasten (3) können diese Programme über Zusatzfunktionen variiert werden. Durch eine auf dem Drehwahlschalter (2) integrierte Temperaturwahl können diesen Programmen verschiedene Temperaturwerte zugeordnet werden. Zusätzlich zu den Programmen für spezielle Gewebe, beispielsweise Koch-/Buntwäsche 60°C (4) kann mit dem Drehwahlschalter (2) ein Mischwäsche-Programm (5) eingestellt werden. Dieses Programm ermöglicht es, einen farbechten Beladungsmix von maximal 3 kg Buntwäsche und pflegeleichten Textilien bei einer Festtemperatur von 40°C zu waschen. Anstelle einer festen Temperaturzuordnung ist alternativ eine integrierte Temperaturwahlmöglichkeit von kalt bis 60°C denkbar. Das Waschprogramm wird in bekannter Weise durch eine Mikroprozessor-Steuerung (6) hinsichtlich seiner Programmparameter, Laugentemperatur, Trommeldrehzahl, Wassermenge, Waschzeit usw. beeinflußt.The washing machine according to the invention has a control panel (1) with a rotary selector switch (2), via the washing programs depending on the type of fabric, such as cottons / colored clothes, Delicates, easy care or wool can be adjusted. Via push buttons (3) these programs can be varied using additional functions. By one on the Rotary selector switch (2) integrated temperature selection, these programs can be different Temperature values can be assigned. In addition to the programs for special fabrics, For example, 60 ° C (4) cottons can use the rotary selector switch (2) to run a mixed laundry program (5) can be set. This program enables a true color Load mix of a maximum of 3 kg of colored laundry and easy-care textiles at a fixed temperature wash at 40 ° C. Instead of a fixed temperature assignment, there is an alternative Integrated temperature selection from cold to 60 ° C possible. The washing program is in in a known manner by means of a microprocessor control (6) with regard to its program parameters, Lye temperature, drum speed, amount of water, washing time, etc. affected.

Die erfindungsgemäß aufgebaute Waschmaschine besitzt einen Laugenbehälter (8) und eine aus der DE 44 38 760 A1 bekannte Niveauerfassungseinrichtung zur Erfassung von mindestens zwei Niveaus, und zwar von einem ersten Füllniveau Nmax und einem zweiten, unterhalb von Nmax liegenden Niveau Nmin. Außerdem ist eine Zeitmesseinrichtung (7) vorhanden,' welche die Saugzeiten tsi vom Erreichen des ersten Füllniveaus Nmax bis zum Absinken des Wasserstands auf das Niveau Nmin mißt. Die Niveaus werden durch einen analogen Drucksensor ADS (9) erfaßt, der wasserstandsabhängige Druckwerte pi(N) in Form einer Meßspannung Upi(N) an die Mikroprozessor-Steuerung weitergibt, welche diese wiederum in Niveaus umrechnet.The washing machine constructed according to the invention has a tub (8) and a level detection device known from DE 44 38 760 A1 for detecting at least two levels, namely of a first filling level N max and a second level N min below N max . There is also a time measuring device (7) which measures the suction times t si from reaching the first filling level N max until the water level drops to the level N min . The levels are detected by an analog pressure sensor ADS (9), which transmits water level-dependent pressure values p i (N) in the form of a measuring voltage U pi (N) to the microprocessor control, which in turn converts them into levels.

Nach dem Einlegen der Wäsche und der Anwahl des Programms Mischwäsche (5) über den Drehwahlschalter (2) läuft der Programmabschnitt "Hauptwäsche" dieses Programms wie in Figur 2 dargestellt ab:After loading the laundry and selecting the Mixed laundry program (5) via the The rotary selector switch (2) runs the "Main wash" program section of this program as in Figure 2 shown from:

Zunächst erfolgt eine Eingangsüberprüfung (A) des Druckwertes p durch den ADS (9), um festzustellen, ob im Laugenbehälter (8) der Waschmaschine noch Restwasser vorhanden ist oder die Wäsche tropfnaß eingelegt wurde. Ist dies der Fall, wird das Waschprogramm sicherheitshalber als Pflegeleicht-Programm fortgesetzt, da von der Zeiterfassungseinrichtung keine Saugzeiten mehr ermittelt werden können, die auf die Zusammensetzung der Wäsche schließen lassen.First of all, an input check (A) of the pressure value p is carried out by the ADS (9), um Determine whether there is still residual water in the washing machine's tub (8) or the laundry has been soaked to drip. If this is the case, the washing program will be on the safe side continued as an easy care program because of the time recording facility No more suction times can be determined based on the composition of the laundry let close.

Wenn der Druckwert kleiner als ein Schwellenwert p0 = 10 mmWs ist, erfolgt der erste Füllvorgang (B) bis zum Niveau p1 = 75 mmWs (= Nmax). Zur Sicherheit wird in jedem Fall 30 Sekunden lang Wasser eingefüllt. Hierdurch wird gewährleistet, daß bei starkem Schaumaufkommen (Überdosierung des Waschmittels) eine Wassermindestmenge im Laugenbehälter vorhanden ist. Nach dem Erreichen von Nmax wird der Füllvorgang durch Schließen des Magnetventils beendet und die Trommel mit einer Drehzahl von 40 U/min gedreht. Dabei saugt die Wäsche einen Teil des in den Laugenbehälter (8) eingefüllten Wassers wieder auf. Es erfolgt eine Messung der 1. Saugzeit ts1 (C) vom Schließen des Magnetventils beim erreichen des Niveaus Nmax bis zum Erreichen des Niveaus Nmin = 35 mmWs.If the pressure value is less than a threshold value p 0 = 10 mmWs, the first filling process (B) takes place up to the level p 1 = 75 mmWs (= N max ). For safety reasons, water is poured in for 30 seconds. This ensures that there is a minimum amount of water in the tub when there is a lot of foam (overdosing of the detergent). After reaching N max , the filling process is ended by closing the solenoid valve and the drum is rotated at a speed of 40 rpm. The laundry absorbs some of the water filled into the tub (8). The first suction time t s1 (C) is measured from the closing of the solenoid valve when the level N max is reached to the level N min = 35 mmWs.

Anhand dieser ersten Saugzeit schließt die Mikroprozessor-Steuerung (6) auf die Zusammensetzung des Wäschepostens. Bei einer Saugzeit ts1 von mehr als 30 Sekunden wird mit einem Pflegeleicht-Programm fortgefahren. Liegt die Saugzeit unter 30 Sekunden, wird das Waschprogramm als modifiziertes Kochwäsche/Buntwäsche-Programm fortgesetzt. Die Laugentemperatur wird dabei entweder auf 40°C festgesetzt (Variante 1) oder auf einen vom Benutzer gewählten Wert geregelt (Variante 2). Der Wasserstand beim Waschen wird gegenüber dem von herkömmlichen KochwäschelBuntwäsche-Programmen (45 mmWs) auf 65 mmWs erhöht. Außerdem wird die Schleuderdrehzahl unabhängig von ihrer gewählten Größe auf 900 U/min begrenzt.The microprocessor control (6) uses this first suction time to determine the composition of the laundry item. With a suction time t s1 of more than 30 seconds, an easy-care program is continued. If the suction time is less than 30 seconds, the washing program is continued as a modified cottons / colored clothes program. The lye temperature is either set to 40 ° C (variant 1) or regulated to a value selected by the user (variant 2). The water level during washing is increased to 65 mmWs compared to conventional boil-wash programs (45 mmWs). The spin speed is also limited to 900 rpm regardless of the size selected.

Claims (3)

  1. Method of washing washloads, which comprise items of laundry of different fabric types, in a washing machine having a control panel, in which are disposed a rotatable selector switch and/or a pressure switch which, on the one hand, are used to set a washing program which is dependent on the fabric type (laundry to be boilded/coloured laundry, easy-care, wool) and on the temperature and, on the other hand, permit the setting of a program to wash a washload (mixed laundry 40° C), which comprises items of laundry of different fabric types, and having a program control which runs the set program, taking account of program parameters stipulated therefor, one laundry parameter being intended at the beginning of the program for mixed laundry, which parameter permits an inference to the composition of the washload, and in that those programmed operations, whereby the program is continued, are subsequently determined from a number of selectable programmed operations in dependence on the measured laundry parameter, characterised in that a restriction to a maximum rotational speed occurs independently of the rotational speed set, and the water level is increased compared with the level of a conventional program for laundry to be boiled/coloured laundry.
  2. Method of washing washloads according to claim 1, characterised in that the suction time from initially reaching an upper water level to the initial dropping to a lower water level is measured as the laundry parameter.
  3. Washing machine for accomplishing the method, according to claim 1 or 2, with a measuring device which determines a laundry parameter, which permits an inference to the composition of the washload, when selecting the program to wash a washload which comprises items of laundry of different fabric types (mixed laundry), and by a control means which determines those programmed operations, whereby the program is continued, from a number of selectable programmed operations, in dependence on the measured laundry parameter, when selecting the program for washing a washload which comprises items of laundry of different fabric types, and characterised in that the control means causes the maximum rotational speed to be limited and the water level to be increased compared with a conventional program for laundry to be boiled/coloured laundry.
EP97116203A 1996-10-10 1997-09-18 Programme controlled washing machine Expired - Lifetime EP0835955B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19641819 1996-10-10
DE19641819A DE19641819C2 (en) 1996-10-10 1996-10-10 Method for washing laundry items and washing machine for performing this method
DE19648838 1996-11-26
DE19648838 1996-11-26

Publications (4)

Publication Number Publication Date
EP0835955A2 EP0835955A2 (en) 1998-04-15
EP0835955A3 EP0835955A3 (en) 1999-01-20
EP0835955B1 true EP0835955B1 (en) 2002-12-11
EP0835955B2 EP0835955B2 (en) 2007-06-06

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Application Number Title Priority Date Filing Date
EP97116203A Expired - Lifetime EP0835955B2 (en) 1996-10-10 1997-09-18 Programme controlled washing machine

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EP (1) EP0835955B2 (en)
AT (1) ATE229585T1 (en)
DE (1) DE59708935D1 (en)
ES (1) ES2188838T5 (en)

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CN109423837A (en) * 2017-08-29 2019-03-05 坎迪股份公司 Washing machine and method for selecting the washing mode of washing machine
CN109423837B (en) * 2017-08-29 2022-04-08 坎迪股份公司 Washing machine and method for selecting washing mode of washing machine

Also Published As

Publication number Publication date
EP0835955B2 (en) 2007-06-06
DE59708935D1 (en) 2003-01-23
EP0835955A3 (en) 1999-01-20
ES2188838T5 (en) 2007-11-01
ES2188838T3 (en) 2003-07-01
EP0835955A2 (en) 1998-04-15
ATE229585T1 (en) 2002-12-15

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