EP0649933A1 - Machine à laver avec consommation de détergent contrôlée et procédé de contrôle - Google Patents

Machine à laver avec consommation de détergent contrôlée et procédé de contrôle Download PDF

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Publication number
EP0649933A1
EP0649933A1 EP94116745A EP94116745A EP0649933A1 EP 0649933 A1 EP0649933 A1 EP 0649933A1 EP 94116745 A EP94116745 A EP 94116745A EP 94116745 A EP94116745 A EP 94116745A EP 0649933 A1 EP0649933 A1 EP 0649933A1
Authority
EP
European Patent Office
Prior art keywords
detergent
washing machine
type
clothes
washing
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
EP94116745A
Other languages
German (de)
English (en)
Other versions
EP0649933B1 (fr
Inventor
Valerio Aisa
Costantino Mariotti
Donato Reginelli
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.)
Whirlpool EMEA SpA
Original Assignee
Merloni Elettrodomestici SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merloni Elettrodomestici SpA filed Critical Merloni Elettrodomestici SpA
Publication of EP0649933A1 publication Critical patent/EP0649933A1/fr
Application granted granted Critical
Publication of EP0649933B1 publication Critical patent/EP0649933B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • 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
    • A47L15/0055—Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration
    • 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
    • D06F2103/16—Washing liquid 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
    • D06F2103/18—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
    • D06F2103/20—Washing liquid condition, e.g. turbidity
    • D06F2103/22—Content of detergent or additives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user

Definitions

  • the present invention refers to a washing machine, in particular a laundry washing machine of the domestic type.
  • Laundry washing machines having means for the automatic detergent dosage and also the problems being associated to such a function are known, which refer both to powder and liquid detergents.
  • the aim of the present invention is that of indicating how it is possible to realise a laundry washing machine that, in a simple and economic way, allows for the optimisation of the detergent consumption, so allowing to solve the problem of wastage and its negative consequences on the environment.
  • a washing machine is the subject of the present invention, in particular a laundry washing machine, having the characterising features of the annexed claim 1.
  • the laundry washing machine has suitable means for carrying out the three following functions:
  • the washing machine realised according to the present invention has adequate means for estimating the optimal quantity of detergent, being necessary in relation to the characteristics of the washing water and the load of clothes to be washed.
  • the laundry washing machine according to the invention has adequate means for also detecting the quantity of detergent introduced by the user before initiating the washing cycle: such detection means are in great part the same as those being used for the estimation of the optimal detergent quantity.
  • the following information is available to the control unit of the fuzzy logic type:
  • the laundry washing machine according to invention has finally suitable interface means for supplying the user with an appropriate feedback concerning the correctness, or not, of the quantity of detergent that has been introduced.
  • control unit of the system has, through the cited sensor devices and its own memorised knowledge, information relating to the estimation of the optimal detergent quantity and to the detection of the quantity of detergent introduced by the user .
  • control unit is equipped with a non volatile memory of the EEPROM type (Electrically Erasable Programmable Memory) and can therefore acquire indications on the user's habits , having regards to the type of the average load of clothes, the quantity and the average type of soil and the prevalent way of using the detergent.
  • EEPROM Electrically Erasable Programmable Memory
  • Such indications are detected over time, wash after wash, through the sensor and detection means cited above, and stored in the aforementioned non volatile memory, which is updated time after time according to opportune criteria derived from modern learning software techniques (learning algorithms).
  • the control unit moreover has a further knowledge base (which is also obtained through the experience of technicians and by means of experimental surveys, and encoded in the permanent memory of the microcontroller of the control unit), containing the criteria for supplying the user, by means of the cited interface means, with a qualitative and/or quantitative judgement on the degree of correctness concerning the quantity of the detergent introduced, which is evaluated on the basis of the comparison between the optimal theoretic quantity and the estimation of that effectively introduced, and taking into account the information on the user's habits, stored over time by the control unit.
  • the interface means or, in other words, the way of informing the user about the correctness, or not, of the detergent dosage he has used can be of different types, depending on the adopted signalling means.
  • a suitable display could be used for showing the degree of distance (in defect or in excess) in respect of the optimal dose of the detergent, being provided in relation to the characteristics of the water and the clothes present in the laundry washing machine.
  • an acoustic signalling device such as one or more buzzers having different sounds or tones, or a vocal synthesiser with messages of the type "DETERGENT IN EXCESS” or “DETERGENT IN DEFECT” or "CORRECT QUANTITY OF DETERGENT”.
  • a display means of a simplified type could be used, based on the use of simple luminous lights or, as an alternative, an index-type electric instrument, for example of the moving-coil type, duly connected to the control system.
  • an excellent method for encoding in a compact form the great quantity of information that the control unit has to deal with is that supplied by the control technology based on the fuzzy logic, which is already widely used in the field of consumer products and, in particular, in the field of household appliances.
  • the knowledge bases of the method according to invention, being obtained as described above, are encoded, inside of the permanent memory of the microcontroller in the form of "rules" (IF...THEN rules) by means of the fuzzy logic techniques.
  • the implementation of the invention has a very low cost; in fact the pressure switch is practically already present on all washing machines (for security and normative reasons), the cost of the microcontroller (if it is not already provided on the laundry washing machine) is in the order of $1; in the same way, the cost of the components of the device for measuring the water resistivity, the temperature sensor and the signalling light is second place concerning the utility of the control system of the machine being the subject of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP94116745A 1993-10-26 1994-10-24 Machine à laver avec consommation de détergent contrÔlée et procédé de contrÔle Expired - Lifetime EP0649933B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO930796 1993-10-26
ITTO930796A IT1261006B (it) 1993-10-26 1993-10-26 Macchina di lavaggio a consumo di detersivo controllato, e relativo metodo di controllo.

Publications (2)

Publication Number Publication Date
EP0649933A1 true EP0649933A1 (fr) 1995-04-26
EP0649933B1 EP0649933B1 (fr) 1999-03-17

Family

ID=11411826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94116745A Expired - Lifetime EP0649933B1 (fr) 1993-10-26 1994-10-24 Machine à laver avec consommation de détergent contrÔlée et procédé de contrÔle

Country Status (4)

Country Link
EP (1) EP0649933B1 (fr)
DE (1) DE69417146T2 (fr)
ES (1) ES2130329T3 (fr)
IT (1) IT1261006B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019284A1 (fr) * 1998-09-30 2000-04-06 Wrap S.P.A. Systeme destine a programmer un appareil electromenager equipe d'une commande electronique
DE10145601A1 (de) * 2001-04-27 2002-10-31 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine
EP2220279A2 (fr) * 2007-11-20 2010-08-25 LG Electronics Inc. Procédé et appareil pour traiter le linge
US8266748B2 (en) 2008-07-01 2012-09-18 Whirlpool Corporation Apparatus and method for controlling bulk dispensing of wash aid by sensing wash aid concentration
US8388695B2 (en) 2008-07-01 2013-03-05 Whirlpool Corporation Apparatus and method for controlling laundering cycle by sensing wash aid concentration
US8397328B2 (en) 2008-07-01 2013-03-19 Whirlpool Corporation Apparatus and method for controlling concentration of wash aid in wash liquid
US9243987B2 (en) 2013-05-01 2016-01-26 Whirlpool Corporation Method of determining fabric type of a laundry load in a laundry treating appliance
CN109183357A (zh) * 2018-10-23 2019-01-11 珠海格力电器股份有限公司 一种清洗方法及洗衣机
CN111434838A (zh) * 2019-01-11 2020-07-21 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机
CN112176638A (zh) * 2019-06-14 2021-01-05 青岛海尔洗衣机有限公司 一种洗衣机的控制方法
CN113930940A (zh) * 2020-06-29 2022-01-14 青岛海尔洗衣机有限公司 洗涤剂投放控制方法、装置、设备及存储介质

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0129668D0 (en) 2001-12-12 2002-01-30 Procter & Gamble Method for cleaning a soiled article
DE102007036800A1 (de) * 2007-05-29 2008-12-04 Herbert Kannegiesser Gmbh Verfahren zur Nassbehandlung von Wäschestücken
DE102007041069B4 (de) 2007-08-30 2017-01-12 BSH Hausgeräte GmbH Verfahren zur Erkennung von Weichspüler in einer Waschmaschine sowie hierzu geeignete programmgesteuerte Waschmaschine
DE102007046555A1 (de) * 2007-09-28 2009-04-02 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und eine Einrichtung zum Verwerten von Informationen über ein Behandlungsmittel in einer Wäschebehandlungsmaschine
PL2408958T3 (pl) 2009-03-16 2013-06-28 Bsh Hausgeraete Gmbh Sposób optymalizacji fazy płukania w pralce automatycznej oraz nadająca się do tego pralka automatyczna
KR20120086063A (ko) * 2011-01-25 2012-08-02 주식회사 대우일렉트로닉스 액체세제 잔량 경고 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645669A (en) * 1969-02-28 1972-02-29 Gerhard Rausch Method and arrangement for testing the liquid in washing machines
US3796925A (en) * 1972-08-17 1974-03-12 Hearn R Ac solenoid control circuit
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
EP0110999A1 (fr) * 1982-05-10 1984-06-20 Matsushita Electric Industrial Co., Ltd. Machine a laver
DE4122307A1 (de) * 1991-07-05 1993-01-14 Licentia Gmbh Verfahren zur ermittlung von programmsteuerungs-parametern fuer haushalt-waschmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645669A (en) * 1969-02-28 1972-02-29 Gerhard Rausch Method and arrangement for testing the liquid in washing machines
US3796925A (en) * 1972-08-17 1974-03-12 Hearn R Ac solenoid control circuit
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
EP0110999A1 (fr) * 1982-05-10 1984-06-20 Matsushita Electric Industrial Co., Ltd. Machine a laver
DE4122307A1 (de) * 1991-07-05 1993-01-14 Licentia Gmbh Verfahren zur ermittlung von programmsteuerungs-parametern fuer haushalt-waschmaschinen

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6873876B1 (en) 1998-09-30 2005-03-29 Wrap Spa System for programming a household appliance having an electronic control
WO2000019284A1 (fr) * 1998-09-30 2000-04-06 Wrap S.P.A. Systeme destine a programmer un appareil electromenager equipe d'une commande electronique
DE10145601A1 (de) * 2001-04-27 2002-10-31 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine
EP2220279A2 (fr) * 2007-11-20 2010-08-25 LG Electronics Inc. Procédé et appareil pour traiter le linge
EP2220279A4 (fr) * 2007-11-20 2014-05-21 Lg Electronics Inc Procédé et appareil pour traiter le linge
US10066331B2 (en) 2008-07-01 2018-09-04 Whirlpool Corporation Apparatus and method for controlling laundering cycle by sensing wash aid concentration
US8266748B2 (en) 2008-07-01 2012-09-18 Whirlpool Corporation Apparatus and method for controlling bulk dispensing of wash aid by sensing wash aid concentration
US8388695B2 (en) 2008-07-01 2013-03-05 Whirlpool Corporation Apparatus and method for controlling laundering cycle by sensing wash aid concentration
US8397328B2 (en) 2008-07-01 2013-03-19 Whirlpool Corporation Apparatus and method for controlling concentration of wash aid in wash liquid
US9243987B2 (en) 2013-05-01 2016-01-26 Whirlpool Corporation Method of determining fabric type of a laundry load in a laundry treating appliance
CN109183357A (zh) * 2018-10-23 2019-01-11 珠海格力电器股份有限公司 一种清洗方法及洗衣机
CN111434838A (zh) * 2019-01-11 2020-07-21 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机
CN112176638A (zh) * 2019-06-14 2021-01-05 青岛海尔洗衣机有限公司 一种洗衣机的控制方法
CN112176638B (zh) * 2019-06-14 2023-09-12 青岛海尔洗衣机有限公司 一种洗衣机的控制方法
CN113930940A (zh) * 2020-06-29 2022-01-14 青岛海尔洗衣机有限公司 洗涤剂投放控制方法、装置、设备及存储介质
CN113930940B (zh) * 2020-06-29 2024-01-12 青岛海尔洗衣机有限公司 洗涤剂投放控制方法、装置、设备及存储介质

Also Published As

Publication number Publication date
EP0649933B1 (fr) 1999-03-17
IT1261006B (it) 1996-04-29
ITTO930796A1 (it) 1995-04-26
ES2130329T3 (es) 1999-07-01
DE69417146D1 (de) 1999-04-22
DE69417146T2 (de) 1999-08-12
ITTO930796A0 (it) 1993-10-26

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