EP0042190A1 - Verfahren zum Ermitteln der mittleren Art des wesentlichen Materials der in einer Waschmaschine eingebrachten Wäsche und Waschmaschine zur Durchführung dieses Verfahrens - Google Patents

Verfahren zum Ermitteln der mittleren Art des wesentlichen Materials der in einer Waschmaschine eingebrachten Wäsche und Waschmaschine zur Durchführung dieses Verfahrens Download PDF

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Publication number
EP0042190A1
EP0042190A1 EP81200631A EP81200631A EP0042190A1 EP 0042190 A1 EP0042190 A1 EP 0042190A1 EP 81200631 A EP81200631 A EP 81200631A EP 81200631 A EP81200631 A EP 81200631A EP 0042190 A1 EP0042190 A1 EP 0042190A1
Authority
EP
European Patent Office
Prior art keywords
laundry
water
volume
machine
tank
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
EP81200631A
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English (en)
French (fr)
Other versions
EP0042190B1 (de
Inventor
Michel Steers
Jean-Pierre Hazan
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.)
Laboratoires dElectronique Philips SAS
Koninklijke Philips NV
Original Assignee
Electronique & Physique
Laboratoires dElectronique et de Physique Appliquee
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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Filing date
Publication date
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Application filed by Electronique & Physique, Laboratoires dElectronique et de Physique Appliquee, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Electronique & Physique
Publication of EP0042190A1 publication Critical patent/EP0042190A1/de
Application granted granted Critical
Publication of EP0042190B1 publication Critical patent/EP0042190B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • D06F2103/18—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

Definitions

  • the present invention relates to a method for determining the average nature of the material of the laundry in a washing machine, which method further comprises measuring the weight of the laundry introduced into the machine, recording the volume (V) and the reading of the height (h) of the water introduced into the machine tank. Subsequently, for the sake of abbreviation, we will speak of the average nature of the laundry, it being understood that it is the average nature of the material of which the laundry is made.
  • the object of the present invention is to carry out a process in which the average nature of the linen is determined electronically in the machine, so that an adequate treatment can be applied for each type of linen.
  • the method according to the invention is characterized in that at least one of said readings is carried out continuously during the filling of the tank, that the height (h) read off is compared to at least one reference value, and that when the height of the water in the tank begins to exceed this reference value, the machine determines the nature of the laundry present in the tank by comparing the volume of water absorbed per unit weight of laundry with a series of standard values of this absorbed volume corresponding to different types of laundry.
  • the machine determines the nature of the laundry present in the tank by comparing the volume of water absorbed per unit weight of laundry with a series of standard values of this absorbed volume corresponding to different types of laundry.
  • the method according to the invention excludes this human error, since it is the washing machine itself which determines the nature of the laundry.
  • the method according to the invention is particularly characterized in that the volume of water absorbed per unit weight of laundry is compared with three standard values, which standard values correspond to three curves representing the height (h) of the water introduced into the tank as a function of the volume (V) ′ of the water introduced into the tank, which three curves being a first curve corresponding to the absence of laundry in the machine, a second curve corresponding to the presence of laundry made of absorbent material, and a third curve corresponding to the presence of linen of little or no absorbent material; the nature of the laundry being appreciated in the geometric differences with respect to each other of the representative curves in Cartesian coordinates, in each case, variations in the height h of water in the tank as a function of the volume V d water introduced.
  • the fabric is very absorbent, in wool or cotton for example, when water is introduced, it will first be absorbed by the linen in proportion to the weight of the linen introduced, so that a water level will take a long time ... to settle in the tank.
  • the curve representing the water level h as a function of the volume V will have a plateau parallel to the abscissa axis, the length of which, equal to the volume of water absorbed, is characteristic of the presence of the wool and of the weight thereof. this.
  • the representative curve does not have a plateau and will be very close to the theoretical curve (without linen), which is characteristic of said synthetic fabric.
  • the method according to the invention is particularly characterized in that said reference value corresponds to the level of a level of said second curve, which level is substantially parallel to the axis of the volume.
  • the advantage of choosing the bearing of the second curve as a reference value lies in the fact that the presence of a bearing indicates the presence of laundry made of absorbent materials in the tank of the washing machine, which absorbent materials prevent the level d water to rise in the tank.
  • the method according to the invention is characterized in that the filling of the tank comprises at its beginning a sequence of alternating periods of respectively resting and successively rotating the drum of the machine, which sequence continues until the disappearance of an indication, for the height of the water, of a constant average value over time, this because it is necessary to take into account the speed of absorption of the water by the linen, which can delay the installation of the bearing.
  • the admission of water into the tank has a sequence of stop and opening periods, the instantaneous level of the water inside the tank oscillates around an average value corresponding to - bearing.
  • the invention also relates to a washing machine for carrying out the method according to the invention, which machine comprises a device for measuring the weight of the laundry introduced into the machine and electronic means memorizing the weight of the laundry.
  • This washing machine for implementing the method according to the invention is characterized in that it comprises a device for continuously measuring the volume of water introduced into the tank, and a device for continuously measuring the water level. , a device for determining the volume of water absorbed per unit weight of laundry having a first input connected to the device for continuously measuring the volume of water and a second input connected to electronic means memorizing the weight of the laundry, which device having an outlet connected to a device for identifying the average nature of the laundry introduced into the tank.
  • the volume of water absorbed per unit of weight is compared with typical values in order to determine the average nature of the laundry.
  • a washing machine has a so-called volume memory for memorizing the volume. water introduced into the machine; it is further characterized in that it also includes a first comparator block for comparing the measured water level with a reference level and for generating a validation signal when the measured level is greater than the reference level, which signal validation is applied to the so-called volume memory, a divider block, having a first input connected to the so-called volume memory and a second input connected to the electronic means memorizing the weight of the laundry, to determine the quotient between the value of the volume of water present in the tank upon receipt of the validation signal and the weight of the laundry, a second comparator block connected to an output of said divider block to compare the quotient signal at the output of the divider block with typical volume volume quotients water absorbed per unit of linen weight corresponding to various known qualities of linen.
  • the method according to the invention is carried out in a simple and inexpensive manner in a washing machine.
  • the invention uses the information collected by implementing the process on board the machine to control devices for choosing the washing cycles depending both on the nature of the laundry to be washed and the quantity of it present in the machine, said devices being part of the machine.
  • the tank of the washing machine is roughly a cylinder with circular section of radius R and whose length axis L is horizontal
  • the volume V of water in the tank is connected in l absence of laundry at the height h of the level in this tank according to the expression:
  • Curve A in Figure 1 represents the variation of h as a function of V according to this expression. It is the curve recorded, according to the method of the invention, in the absence of laundry by measuring, continuously and simultaneously during the filling of the tank of the machine, that is to say the height h of the level inside the tank either the volume V of water introduced into the machine or both at the same time.
  • the filling is carried out in the presence of an absorbent cloth, wool for example. Absorption takes place naturally with a certain delay. It is favored by agitation of the tissue in water.
  • the filling of the tank according to the invention comprises at the beginning a sequence of periods of opening and stopping the admission of water into the machine, the stopping periods being used to carry out an agitation of the laundry by placing 'in rotation during each stopping period of the rotating drum containing the laundry.
  • the water level h inside the tank tends, at the start of filling, to remain low and to perform alternative oscillations around a substantially constant average value.
  • the agitation of the linen is suspended when the absorption capacity of the linen is exhausted and it is noted that the water level tends to rise as in the absence of linen.
  • the observed curve giving the variation of h as a function of V is then in this case the curve of type B located below A.
  • This curve exhibits at its beginning oscillations of the level h of substantially constant mean value corresponding to the period of agitation of the laundry during absorption, this mean value being the ordinate of the PQ level, -and an increasing portion.
  • the PQ level increases the longer the laundry is more abundant or the greater the weight of the laundry. For a given weight of laundry, it is characteristic of the nature of the laundry. Its length is proportional to the weight of the laundry.
  • the measurement of the length of this bearing PQ serves, according to the method of the invention, to determine the nature of the laundry when we know the weight of this laundry introduced into the machine, or even, when we know the nature of the laundry , to determine the weight of laundry present in the machine.
  • the filling is carried out in the presence of a practically non-absorbent cloth or else absorbing a weight of water less than its own weight, which corresponds to a cloth made of synthetic material.
  • the curve taken from h as a function of V is then of type C, close to curve A, and generally located above, in because of the Archimedes push exerted on the linen. The reading of this curve thus provides, according to the above, the means of recognizing linen made of synthetic material.
  • the process is carried out on board washing machines.
  • the washing machine is provided with a volumetric meter for measuring the volume V of water, with a device for continuously measuring the level h, for example of the type which is the subject of French patent application No. 80 13 201, filed on June 13, 1980 and electronic means memorizing the volume of water introduced into the machine and translating the volume of water absorbed per unit weight of laundry.
  • the level sensor device according to the above-mentioned request, consists of an electrically insulated conductor in the form of a circular arc placed in a cross section common to the tank and the drum in the lower part of the tank, the circle having a radius intermediate between those of the tank and the drum and being centered on the axis common to the tank and drum.
  • the weight of the laundry introduced is m 'EASURE for example by measuring the variation of weight of the machine due to the introduction of the laundry in the machine.
  • One means used is for example an electric resistive strain gauge installed between the machine frame and the ground on which the machine rests.
  • block 21 represents the meter with which the volume V of water introduced into the machine is translated into output in an electrical signal proportional to this volume
  • block 22 a comparator into which the water level signal h from the level sensor is introduced as well as a reference signal R which corresponds to the level of the level PQ of the figure 1 of water absorption.
  • This comparator delivers a signal as soon as the water level h is higher than the reference level.
  • This signal from the comparator is introduced into memory 23 which also receives the signal from the water meter. The memory then records the volume of water introduced into the machine which corresponds to the volume of water absorbed Va by the laundry (abscissa of point Q in FIG.
  • the information from the memory is entered in the divider block 25 as well as the dry laundry weight information P from the block 24.
  • the block 25 calculates the quotient V a / P between the volume of water absorbed V a and this weight P.
  • This quotient is introduced into the comparator block 26 as well as standard quotient values relating to different types of laundry.
  • the quotient from 25 is compared with these different standard values to determine the nature of the laundry present in the machine.
  • the washing machine thus has on board information relating to both the nature of the laundry to be washed and the weight thereof.
  • the machine uses this information to control devices for choosing the washing cycles depending both on the nature of the laundry to be washed and the quantity of it present in the machine, said devices being part of the machine.
EP81200631A 1980-06-13 1981-06-09 Verfahren zum Ermitteln der mittleren Art des wesentlichen Materials der in einer Waschmaschine eingebrachten Wäsche und Waschmaschine zur Durchführung dieses Verfahrens Expired EP0042190B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8013202 1980-06-13
FR8013202A FR2484487A1 (fr) 1980-06-13 1980-06-13 Procede pour la determination de la nature moyenne du linge introduit dans une machine a laver le linge et mise en oeuvre dudit procede a bord de ladite machine

Publications (2)

Publication Number Publication Date
EP0042190A1 true EP0042190A1 (de) 1981-12-23
EP0042190B1 EP0042190B1 (de) 1984-01-25

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ID=9243084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200631A Expired EP0042190B1 (de) 1980-06-13 1981-06-09 Verfahren zum Ermitteln der mittleren Art des wesentlichen Materials der in einer Waschmaschine eingebrachten Wäsche und Waschmaschine zur Durchführung dieses Verfahrens

Country Status (5)

Country Link
US (1) US4400838A (de)
EP (1) EP0042190B1 (de)
JP (1) JPS5729398A (de)
DE (1) DE3162018D1 (de)
FR (1) FR2484487A1 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474547A1 (fr) * 1980-01-26 1981-07-31 Miele & Cie Procede et dispositif permettant de commander le programme d'un lave-linge, dont l'alimentation en eau est fonction de son niveau
FR2559796A1 (fr) * 1984-02-17 1985-08-23 Esswein Sa Lave-linge a determination automatique du type de linge introduit dans cette machine
FR2574822A1 (fr) * 1984-12-19 1986-06-20 Licentia Gmbh Procede et dispositif pour la commande par programme d'une machine a laver
FR2574645A1 (fr) * 1984-12-14 1986-06-20 Esswein Sa Procede de determination de la charge en vaisselle, et lave-vaisselle mettant en oeuvre un tel procede
FR2577949A1 (fr) * 1985-02-28 1986-08-29 Esswein Sa Machine a laver et a essorer a duree d'essorage variable
EP0143685B1 (de) * 1983-10-25 1989-09-27 Esswein S.A. Verfahren zum Ermitteln der Wäschemenge in einer drehenden Trommel und Waschmaschine und/oder Wäschetrockner zur Durchführung dieses Verfahrens
EP0483906A1 (de) * 1990-10-29 1992-05-06 Whirlpool Europe B.V. Verfahren und Vorrichtung zum Erfassen der Wäscheart in einer Waschmaschine oder dergleichen
WO1992009017A1 (en) * 1990-11-08 1992-05-29 Griverus Bernt Methods and devices for control of fluidic systems
EP0644291A1 (de) * 1993-09-17 1995-03-22 AEG Hausgeräte GmbH Verfahren zur Ermittlung wäschespezifischer Parameter in Haushalt-Waschmaschinen und Vorrichtung zur Durchführung des Verfahrens
EP0709512A1 (de) * 1994-10-29 1996-05-01 Miele & Cie. GmbH & Co. Verfahren zur Ermittlung einer von der Wäscheart und der Wäschemenge abhängigen Beladungsstufe
EP0717139A1 (de) * 1994-12-13 1996-06-19 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Vorrichtungen zum Bestimmen der Wäscheart in Waschmaschinen
ES2109134A1 (es) * 1993-04-27 1998-01-01 Bosch Siemens Hausgeraete Maquina domestica con mando automatico para el lavado y aclarado de ropa.
EP0898004A1 (de) * 1991-06-28 1999-02-24 General Electric Company Elektronische Waschmaschinensteuerung mit einer automatischen Erfassung des Wäschegewichts und der Wäscheart
BE1014996A3 (nl) * 2002-07-17 2004-08-03 Ipso Lsg Nv Werkwijze en inrichting voor het wassen, meer speciaal voor het wassen van producten zoals textiel en dergelijke.

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DE19641819C2 (de) * 1996-10-10 2000-10-12 Miele & Cie Verfahren zum Waschen von Wäscheposten und Waschmaschine zur Durchführung dieses Verfahrens
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EP1963563B1 (de) * 2005-12-22 2015-03-04 LG Electronics Inc. Verfahren zum säubern eines bottichs in einer waschmaschine
US8713976B2 (en) * 2006-12-29 2014-05-06 General Electric Company Systems and methods for controlling operation of a washing machine
EP2034078B1 (de) * 2007-09-05 2011-02-16 Whirlpool Corporation Verfahren zur raschen Kalkulation der in eine Waschmaschine mit Wasserrezirkulationssystem zu ladenden Wassermenge und zur Ausführung dieses Verfahrens geeignete Waschmaschine
US7930786B2 (en) * 2008-03-31 2011-04-26 Whirlpool Corporation Method for determining load size and/or setting water level in a washing machine
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US9243987B2 (en) 2013-05-01 2016-01-26 Whirlpool Corporation Method of determining fabric type of a laundry load in a laundry treating appliance
CN103343435A (zh) * 2013-06-24 2013-10-09 无锡小天鹅股份有限公司 洗衣机及其控制方法
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JP6291241B2 (ja) * 2013-12-12 2018-03-14 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 洗濯機
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CN112210954B (zh) * 2019-06-25 2022-09-16 重庆海尔滚筒洗衣机有限公司 洗涤设备进水的控制方法及洗涤设备
CN112176648A (zh) * 2020-11-10 2021-01-05 长虹美菱股份有限公司 一种用于洗衣机的衣物材质识别方法
CN114606707A (zh) * 2020-12-07 2022-06-10 青岛海尔洗衣机有限公司 洗涤参数的确定方法、装置、衣物处理设备及存储介质

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474547A1 (fr) * 1980-01-26 1981-07-31 Miele & Cie Procede et dispositif permettant de commander le programme d'un lave-linge, dont l'alimentation en eau est fonction de son niveau
EP0143685B1 (de) * 1983-10-25 1989-09-27 Esswein S.A. Verfahren zum Ermitteln der Wäschemenge in einer drehenden Trommel und Waschmaschine und/oder Wäschetrockner zur Durchführung dieses Verfahrens
FR2559796A1 (fr) * 1984-02-17 1985-08-23 Esswein Sa Lave-linge a determination automatique du type de linge introduit dans cette machine
EP0159202A1 (de) * 1984-02-17 1985-10-23 Esswein S.A. Waschmaschine mit automatischer Ermittlung von Belastung und Wäscheart
FR2574645A1 (fr) * 1984-12-14 1986-06-20 Esswein Sa Procede de determination de la charge en vaisselle, et lave-vaisselle mettant en oeuvre un tel procede
FR2574822A1 (fr) * 1984-12-19 1986-06-20 Licentia Gmbh Procede et dispositif pour la commande par programme d'une machine a laver
FR2577949A1 (fr) * 1985-02-28 1986-08-29 Esswein Sa Machine a laver et a essorer a duree d'essorage variable
EP0483906A1 (de) * 1990-10-29 1992-05-06 Whirlpool Europe B.V. Verfahren und Vorrichtung zum Erfassen der Wäscheart in einer Waschmaschine oder dergleichen
WO1992009017A1 (en) * 1990-11-08 1992-05-29 Griverus Bernt Methods and devices for control of fluidic systems
EP0898004A1 (de) * 1991-06-28 1999-02-24 General Electric Company Elektronische Waschmaschinensteuerung mit einer automatischen Erfassung des Wäschegewichts und der Wäscheart
ES2109134A1 (es) * 1993-04-27 1998-01-01 Bosch Siemens Hausgeraete Maquina domestica con mando automatico para el lavado y aclarado de ropa.
EP0644291A1 (de) * 1993-09-17 1995-03-22 AEG Hausgeräte GmbH Verfahren zur Ermittlung wäschespezifischer Parameter in Haushalt-Waschmaschinen und Vorrichtung zur Durchführung des Verfahrens
EP0709512A1 (de) * 1994-10-29 1996-05-01 Miele & Cie. GmbH & Co. Verfahren zur Ermittlung einer von der Wäscheart und der Wäschemenge abhängigen Beladungsstufe
EP0717139A1 (de) * 1994-12-13 1996-06-19 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Vorrichtungen zum Bestimmen der Wäscheart in Waschmaschinen
BE1014996A3 (nl) * 2002-07-17 2004-08-03 Ipso Lsg Nv Werkwijze en inrichting voor het wassen, meer speciaal voor het wassen van producten zoals textiel en dergelijke.

Also Published As

Publication number Publication date
US4400838A (en) 1983-08-30
DE3162018D1 (en) 1984-03-01
EP0042190B1 (de) 1984-01-25
JPS643516B2 (de) 1989-01-20
FR2484487A1 (fr) 1981-12-18
FR2484487B1 (de) 1983-08-19
JPS5729398A (en) 1982-02-17

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