EP0704568A1 - Machine à laver avec détermination automatique du poids du linge - Google Patents

Machine à laver avec détermination automatique du poids du linge Download PDF

Info

Publication number
EP0704568A1
EP0704568A1 EP95112646A EP95112646A EP0704568A1 EP 0704568 A1 EP0704568 A1 EP 0704568A1 EP 95112646 A EP95112646 A EP 95112646A EP 95112646 A EP95112646 A EP 95112646A EP 0704568 A1 EP0704568 A1 EP 0704568A1
Authority
EP
European Patent Office
Prior art keywords
drum
speed
washload
inertia
washing machine
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
EP95112646A
Other languages
German (de)
English (en)
Other versions
EP0704568B1 (fr
Inventor
Fabio Marcuzzi
Mario Trangoni
Francesco Drius
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.)
Electrolux Zanussi SpA
Original Assignee
Electrolux Zanussi 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 Electrolux Zanussi Elettrodomestici SpA filed Critical Electrolux Zanussi Elettrodomestici SpA
Publication of EP0704568A1 publication Critical patent/EP0704568A1/fr
Application granted granted Critical
Publication of EP0704568B1 publication Critical patent/EP0704568B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • D06F2103/24—Spin speed; Drum movements
    • 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

Definitions

  • the present invention refers to a clothes washing machine, particularly of the household type, provided with improved means for automatically determining the weight of the load of items to be washed.
  • the present invention refers specially to clothes washing machines of the front-loading type, and for the sake of convenient exemplification the following description is actually referred to such a front-loading type of clothes washing machine, it will be appreciated that it may advantageously apply to other types of clothes washing machines as well, particularly to top-loading machines or machines having their drum rotating about an oblique axis.
  • Clothes washing machines provided with means adapted to automatically identify the load of items to be washed are known in the art, wherein the term load, or washload, is used here and in the following description to solely mean the overall mass of the items to be washed, and not their nature or characteristics.
  • the ability of the washing machine to recognize in an automatic manner each washload that is introduced in its drum for processing is a pre-requisite in view of the self-programming ability of the same machine, which will then be able to automatically define all of the parameters to be used in the washing process, such as the amount of detergent, the amount of water to be filled in, the number and the type of washing and rinsing phases to be performed, etc., so as to each time optimize the operation of the machine, while sparing the user the trouble of having to select each time the most suitable programme and in this way avoiding his or her quite frequently introducing in the process programming errors that prevent the machine from operating in optimum conditions.
  • the measurement of the dry washload is performed by successively driving the drum holding the washload at two distinct, pre-determined speeds of rotation, while measuring both the time and the torque needed to reach the first one of said two speeds of rotation, as well as both the time and the torque needed to increase the speed of rotation of the drum from said first speed to a second pre-determined speed with a different motor torque.
  • water is used to equally mean washing liquor or rinsing water.
  • Such a simplification should not, however, affect the clearness and intelligibility of what is set forth in said description, owing to the context in which such terms are used, as anyone skilled in the art will readily appreciate.
  • the described clothes washing machine comprises a washing tub 1, a drum 2 rotatably arranged within said washing tub and adapted to accomodate the washload 3, an electric motor 4 associated with said drum and adapted to drive it at variable, pre-selectable speeds of rotation.
  • the washing machine is provided with a variable-speed motor and an arrangement adapted to deliver the information relating to the instantaneous speed of rotation of the drum (typically this is a tachometer, but any other device capable of delivering such an information would do for the job).
  • appropriate devices capable of acquiring and delivering an information equivalent or corresponding to the output torque of the motor shall be provided accordingly.
  • Such devices are generally known in the art and may be appropriately selected by those skilled in the art among the variety of existing solutions, such as for instance a peak-voltage detector and a phase-delay type motor control, or a circuit capable of integrating a current equivalent to the motor current, etc.
  • a processing element (not shown) is further provided, in which following data are stored:
  • J +T.C ( P 2 1-P 1 - W 1 ) ln e (P 1 ) where T is the period, espressed in seconds, with which the speed values are read during the phase 2) and W1 is the holding speed during the phase 1).
  • the inertia of the washing machine without washload is determined automatically by the machine by performing the procedure under no load conditions, ie. without any washload introduced in the drum.
  • a kind of self-calibration of each machine can in this way be performed so as to eliminate any manufacturing variable from the calculation of the weight of the washload.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP95112646A 1994-09-28 1995-08-11 Machine à laver avec détermination automatique du poids du linge Expired - Lifetime EP0704568B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN940058 1994-09-28
IT94PN000058A IT1267587B1 (it) 1994-09-28 1994-09-28 Lavabiancheria perfezionata con determinazione automatica del peso

Publications (2)

Publication Number Publication Date
EP0704568A1 true EP0704568A1 (fr) 1996-04-03
EP0704568B1 EP0704568B1 (fr) 1998-12-30

Family

ID=11394950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112646A Expired - Lifetime EP0704568B1 (fr) 1994-09-28 1995-08-11 Machine à laver avec détermination automatique du poids du linge

Country Status (5)

Country Link
EP (1) EP0704568B1 (fr)
JP (1) JP3737170B2 (fr)
DE (1) DE69506981T2 (fr)
ES (1) ES2129162T3 (fr)
IT (1) IT1267587B1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303641B (en) * 1995-07-24 1999-08-04 Fisher & Paykel Water level determination for laundry washing machine
EP1428925A1 (fr) * 2002-12-10 2004-06-16 Lg Electronics Inc. Méthode de contrôle pour une machine à laver avec détermination automatique de la charge
WO2004081276A1 (fr) * 2003-03-13 2004-09-23 Multibrás S.A. Eletrodomésticos Systeme et procede pour detecter une charge de linge dans une machine a laver
WO2005085511A1 (fr) * 2004-03-01 2005-09-15 Arcelik Anonim Sirketi Procede de detection de charge
WO2008053002A3 (fr) * 2006-10-31 2008-06-26 Arcelik As Lave-linge/sèche-linge
ITPN20080073A1 (it) * 2008-10-08 2010-04-09 Appliances Components Companies Spa Motore elettrico controllato e integrato
EP2090870A3 (fr) * 2008-02-15 2011-07-20 General Electric Company Appareil et procédé de mesure de la valeur de charge
US8166590B2 (en) 2009-04-16 2012-05-01 Whirlpool Corporation Method and apparatus for determining laundry load size
US8631527B2 (en) 2009-08-10 2014-01-21 Whirlpool Corporation Laundry treating appliance with tumble pattern control
US8914930B2 (en) 2010-04-13 2014-12-23 Whirlpool Corporation Laundry treating appliance with load amount detection
WO2017144085A1 (fr) * 2016-02-23 2017-08-31 Electrolux Appliances Aktiebolag Procédé servant à déterminer le poids du linge dans un appareil de traitement de linge

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101526388B (zh) * 2008-03-03 2012-03-07 海尔集团公司 一种滚筒洗衣机自动称重的方法
JP6437188B2 (ja) * 2013-11-06 2018-12-12 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 洗濯機
US9988751B2 (en) 2015-07-29 2018-06-05 Whirlpool Corporation Laundry treating appliance and methods of reducing tub contact therein
US10273621B2 (en) 2015-10-01 2019-04-30 Whirlpool Corporation Laundry treating appliance and methods of operation
US9873968B2 (en) 2015-11-19 2018-01-23 Whirlpool Corporation Laundry treating appliance and methods of operation
US10041202B2 (en) 2015-11-19 2018-08-07 Whirlpool Corporation Laundry treating appliance and methods of operation
US9885135B2 (en) 2015-11-19 2018-02-06 Whirlpool Corporation Laundry treating appliance and methods of operation
US9988753B2 (en) 2015-11-19 2018-06-05 Whirlpool Corporation Laundry treating appliance and methods of operation
US9863080B2 (en) 2015-11-19 2018-01-09 Whirlpool Corporation Laundry treating appliance and methods of operation
US9890490B2 (en) 2015-11-19 2018-02-13 Whirlpool Corporation Laundry treating appliance and methods of operation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143685A1 (fr) * 1983-10-25 1985-06-05 Esswein S.A. Procédé de détermination d'une charge de linge dans un tambour tournant, et machine à laver et/ou à sécher mettant en oeuvre ce procédé
EP0410827A1 (fr) * 1989-07-28 1991-01-30 Ciapem Lave-linge ou sèche-linge dans lequel la charge de linge est déterminée de façon automatique
EP0415743A1 (fr) * 1989-08-30 1991-03-06 FISHER & PAYKEL LIMITED Améliorations dans les machines à laver et/ou procédés de commande des machines à laver
US5161393A (en) 1991-06-28 1992-11-10 General Electric Company Electronic washer control including automatic load size determination, fabric blend determination and adjustable washer means
EP0536542A1 (fr) * 1991-10-11 1993-04-14 Zanussi Elettrodomestici S.p.A. Procédé pour mesurer le poids du linge dans les machines à laver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143685A1 (fr) * 1983-10-25 1985-06-05 Esswein S.A. Procédé de détermination d'une charge de linge dans un tambour tournant, et machine à laver et/ou à sécher mettant en oeuvre ce procédé
EP0410827A1 (fr) * 1989-07-28 1991-01-30 Ciapem Lave-linge ou sèche-linge dans lequel la charge de linge est déterminée de façon automatique
EP0415743A1 (fr) * 1989-08-30 1991-03-06 FISHER & PAYKEL LIMITED Améliorations dans les machines à laver et/ou procédés de commande des machines à laver
US5161393A (en) 1991-06-28 1992-11-10 General Electric Company Electronic washer control including automatic load size determination, fabric blend determination and adjustable washer means
EP0536542A1 (fr) * 1991-10-11 1993-04-14 Zanussi Elettrodomestici S.p.A. Procédé pour mesurer le poids du linge dans les machines à laver

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303641B (en) * 1995-07-24 1999-08-04 Fisher & Paykel Water level determination for laundry washing machine
EP1428925A1 (fr) * 2002-12-10 2004-06-16 Lg Electronics Inc. Méthode de contrôle pour une machine à laver avec détermination automatique de la charge
US7299515B2 (en) 2002-12-10 2007-11-27 Lg Electronics, Inc. Washing machine control method
WO2004081276A1 (fr) * 2003-03-13 2004-09-23 Multibrás S.A. Eletrodomésticos Systeme et procede pour detecter une charge de linge dans une machine a laver
WO2005085511A1 (fr) * 2004-03-01 2005-09-15 Arcelik Anonim Sirketi Procede de detection de charge
WO2008053002A3 (fr) * 2006-10-31 2008-06-26 Arcelik As Lave-linge/sèche-linge
CN101509929B (zh) * 2008-02-15 2014-05-07 通用电气公司 测量负荷大小的装置和方法
EP2090870A3 (fr) * 2008-02-15 2011-07-20 General Electric Company Appareil et procédé de mesure de la valeur de charge
ITPN20080073A1 (it) * 2008-10-08 2010-04-09 Appliances Components Companies Spa Motore elettrico controllato e integrato
US8166590B2 (en) 2009-04-16 2012-05-01 Whirlpool Corporation Method and apparatus for determining laundry load size
US8631527B2 (en) 2009-08-10 2014-01-21 Whirlpool Corporation Laundry treating appliance with tumble pattern control
US8914930B2 (en) 2010-04-13 2014-12-23 Whirlpool Corporation Laundry treating appliance with load amount detection
WO2017144085A1 (fr) * 2016-02-23 2017-08-31 Electrolux Appliances Aktiebolag Procédé servant à déterminer le poids du linge dans un appareil de traitement de linge
US10988883B2 (en) 2016-02-23 2021-04-27 Electrolux Appliances Aktiebolag Method for the determination of a laundry weight in a laundry treatment appliance

Also Published As

Publication number Publication date
JPH08107990A (ja) 1996-04-30
ITPN940058A1 (it) 1996-03-28
DE69506981D1 (de) 1999-02-11
IT1267587B1 (it) 1997-02-07
EP0704568B1 (fr) 1998-12-30
JP3737170B2 (ja) 2006-01-18
DE69506981T2 (de) 1999-08-05
ES2129162T3 (es) 1999-06-01
ITPN940058A0 (it) 1994-09-28

Similar Documents

Publication Publication Date Title
EP0704568A1 (fr) Machine à laver avec détermination automatique du poids du linge
CA2242994C (fr) Methode de detection d'une quantite de linge dans une machine a laver a tambour
US4991247A (en) Method of balancing a container which rotates about an essentially horizontal axis
US4741182A (en) Washing and/or drying machine having means for determining a load of clothes in a rotary drum
US4782544A (en) Water extraction method and control for automatic washer
US7905122B2 (en) Method and system for determining a washing machine load unbalance
US5507054A (en) Method for determining the mass of wet laundry in a laundry drum
AU755693B2 (en) Method and apparatus for detecting washing machine tub imbalance
CN100453727C (zh) 洗衣机及控制其的方法
US8186227B2 (en) Method and apparatus for determining load amount in a laundry treating appliance
EP1428925B1 (fr) Méthode de contrôle pour une machine à laver avec détermination automatique de la charge
US20050204482A1 (en) Method and system for operating a clothes washing machine
US6594841B2 (en) Unbalance detection system for a washing machine
EP2053151A2 (fr) Procédé et appareil pour déterminer une condition de balourd d'un appareil
JP3108219B2 (ja) 洗濯物の重量を測定する方法
EP0732437B2 (fr) Procédé d'équilibrage dans une machine à laver et/ou à sécher le linge et machine utilisant un tel procédé
EP0410827B1 (fr) Lave-linge ou sèche-linge dans lequel la charge de linge est déterminée de façon automatique
EP0687760B1 (fr) Procédé pour vérifier la charge du linge dans une machine à laver et/ou à sécher et machine utilisant un tel procédé
JPH06182083A (ja) 洗濯機の制御装置
JPH07308481A (ja) 全自動洗濯機
EP0219387B1 (fr) Procédé de détection du niveau d'eau dans une cuve de lave-linge, et lave-linge mettant en oeuvre ce procédé
KR20240083851A (ko) 세탁기를 작동하는 방법 및 세탁기

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19960518

K1C1 Correction of patent application (title page) published

Effective date: 19960403

17Q First examination report despatched

Effective date: 19970704

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ELECTROLUX ZANUSSI S.P.A.

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed

Owner name: PROPRIA S.R.L.

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 69506981

Country of ref document: DE

Date of ref document: 19990211

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2129162

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20110812

Year of fee payment: 17

Ref country code: FR

Payment date: 20110901

Year of fee payment: 17

Ref country code: DE

Payment date: 20110823

Year of fee payment: 17

Ref country code: GB

Payment date: 20110819

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110824

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120811

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120811

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69506981

Country of ref document: DE

Effective date: 20130301

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20131022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120812