EP1525349B1 - Procede pour determiner le balourd d'un tambour de linge - Google Patents

Procede pour determiner le balourd d'un tambour de linge Download PDF

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Publication number
EP1525349B1
EP1525349B1 EP03766140A EP03766140A EP1525349B1 EP 1525349 B1 EP1525349 B1 EP 1525349B1 EP 03766140 A EP03766140 A EP 03766140A EP 03766140 A EP03766140 A EP 03766140A EP 1525349 B1 EP1525349 B1 EP 1525349B1
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EP
European Patent Office
Prior art keywords
current
direct
drum
voltage
motor
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.)
Expired - Lifetime
Application number
EP03766140A
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German (de)
English (en)
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EP1525349A2 (fr
Inventor
Stefan Zeh
Martin Weinmann
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.)
Diehl AKO Stiftung and Co KG
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Diehl AKO Stiftung and Co KG
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Application filed by Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP1525349A2 publication Critical patent/EP1525349A2/fr
Application granted granted Critical
Publication of EP1525349B1 publication Critical patent/EP1525349B1/fr
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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
    • D06F34/16—Imbalance

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • the common method for evaluating the imbalance of a loaded washing machine drum is therefore to measure with soft speed control to a relatively low drum speed caused by the imbalance in the course of a circulation speed fluctuation.
  • the disadvantage is that at high drum filling due to correspondingly increased moment of inertia and at higher rated speed, the speed fluctuations occurring around the rated speed are so low that they are barely detectable by measurement.
  • the invention is therefore based on the technical problem of providing, despite the identified fundamental problems, a method which promises meaningful and reproducible measurement values for the drum imbalance directly before the transition from high to highest drum speeds.
  • a washing machine 11 is equipped for the treatment of laundry 12 in its tub with a perforated drum 13, which is in this case by a rotary field motor 14 about an approximately horizontal axis 15 in rotational movement displaceable.
  • the rotating field for this is impressed on the motor 14 via the alternating flux of typically three stator winding systems 16, each connected to a half-bridge circuit 17 for switching and reversing a stator flux.
  • the entirety of the bridge circuits 17 therefore acts as an inverter or inverter 18 whose switching paths are clocked to specify the direction of rotation and speed of the drum drive motor 14 from a higher-level control 19 in a cyclic sequence.
  • This controller 19 functions as a speed controller when the actual speed 20 is fed back to it, to compare it with a setpoint speed 21 which is predetermined manually or from a wash program.
  • the feeding of the washing machine motor 14 and thus the upstream of him inverter 18 takes place from the AC household network 22 via a converter 23 with rectifier circuit which is buffered to the load by the large capacity 25 of a so-called DC intermediate circuit 26.
  • the power measurement is carried out according to the present invention but not at the terminal of the load to the AC mains 22, but in the DC power supply of the inverter 18 behind the DC intermediate circuit 26.
  • This measurement leaves even at very high drum speed 13 and correspondingly high-frequency fluctuating power consumption perform smoothly and reproducibly, because about disturbing network influences by the converter 23 and the low-pass effect of the DC intermediate circuit 26 are reliably kept away from the vectorial product formation in the power measuring circuit 30.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Testing Of Balance (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Centrifugal Separators (AREA)
  • Drying Of Solid Materials (AREA)

Claims (6)

  1. Procédé de détermination d'une valeur caractéristique du balourd d'un tambour (13) de lave-linge (11), entraîné par un moteur électrique autour d'un axe sensiblement horizontal, par mesure de la variation périodique de la puissance électrique consommée (dP/dt) par son moteur d'entraînement (14),
    la puissance consommée (dP/dt) étant mesurée entre un circuit intermédiaire (26) à courant continu et un inverseur asservi (18) qui applique un champ tournant dans le moteur (14).
  2. Procédé selon la revendication 1, caractérisé en ce que le produit de la tension continue (27) à la sortie du circuit intermédiaire (26) à courant continu et du courant continu (28) qui s'écoule entre le circuit intermédiaire (26) à courant continu et l'inverseur (18) est déterminé dans un circuit (30) de mesure de puissance.
  3. Procédé selon la revendication 1, caractérisé en ce que seule la mesure de la variation périodique du courant continu (28) consommé par le moteur (14) et provenant du circuit intermédiaire (26) à courant continu par l'intermédiaire de l'inverseur (18) est détectée de manière proportionnelle comme puissance électrique consommée en courant continu à tension continue (27) constante.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que les variations de courant (di/dt) sont détectées en supprimant temporairement la tension (27).
  5. Procédé selon la revendication précédente, caractérisé en ce que la variation de courant (di/dt) est détectée en supprimant temporairement la tension (27) du réseau.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que la mesure de puissance ou de courant s'effectue lors de l'essorage à haute vitesse de rotation du tambour avant l'éventuel passage à la vitesse de rotation maximale du tambour.
EP03766140A 2002-07-26 2003-07-09 Procede pour determiner le balourd d'un tambour de linge Expired - Lifetime EP1525349B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10234053 2002-07-26
DE10234053A DE10234053C1 (de) 2002-07-26 2002-07-26 Verfahren zum Bestimmen der Unwucht einer Wäschetrommel
PCT/EP2003/007388 WO2004013401A2 (fr) 2002-07-26 2003-07-09 Procede pour determiner le balourd d'un tambour de linge

Publications (2)

Publication Number Publication Date
EP1525349A2 EP1525349A2 (fr) 2005-04-27
EP1525349B1 true EP1525349B1 (fr) 2010-12-01

Family

ID=29265417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766140A Expired - Lifetime EP1525349B1 (fr) 2002-07-26 2003-07-09 Procede pour determiner le balourd d'un tambour de linge

Country Status (7)

Country Link
US (1) US6973392B2 (fr)
EP (1) EP1525349B1 (fr)
AT (1) ATE490362T1 (fr)
AU (1) AU2003253042A1 (fr)
CA (1) CA2492551C (fr)
DE (2) DE10234053C1 (fr)
WO (1) WO2004013401A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679714A2 (fr) 2012-06-26 2014-01-01 Diehl AKO Stiftung & Co. KG Procédé et dispositif de détection d'un déséquilibre dans un appareil de traitement du linge

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7905122B2 (en) * 2003-04-28 2011-03-15 Nidec Motor Corporation Method and system for determining a washing machine load unbalance
PL1636410T3 (pl) * 2003-06-11 2013-02-28 Askoll Holding Srl Sposób wykrywania stanów niewyważenia wirującego ładunku wprawianego w ruch przez silnik synchroniczny i kontrolowania takiego silnika
DE102004053216B3 (de) * 2004-06-18 2006-02-09 Diehl Ako Stiftung & Co. Kg Vorrichtung zur Erfassung einer Schwingbewegung einer Wäschetrommel
US8042211B2 (en) * 2005-08-16 2011-10-25 Whirlpool Corporation Method of detecting an off-balance condition of a clothes load in a washing machine
DE102006017530A1 (de) * 2006-04-13 2007-10-18 BSH Bosch und Siemens Hausgeräte GmbH Maschine zum Waschen und/oder Trocknen von Wäsche sowie Verfahren zum Erfassen von Unwuchtparametern
US20080156094A1 (en) * 2006-12-27 2008-07-03 General Electric Company Systems and methods for detecting out-of-balance conditions in electronically controlled motors
DE102009001271A1 (de) * 2009-03-02 2010-09-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Ermitteln der Beladung und/oder der Unwucht einer Wäschetrommel einer Waschmaschine und entsprechende Schaltungsanordnung
US8291764B2 (en) * 2009-08-14 2012-10-23 Lenz Michael A W Method and apparatus for in situ unbalance and corrective balance determination for a non-vertical axis rotating assembly
DE102009028810A1 (de) 2009-08-21 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Ermitteln einer Unwucht bei einer Wäschetrommel einer Waschmaschine im Schleuderbetrieb, Antriebsvorrichtung und Waschmaschine mit einer Antriebsvorrichtung
DE102010027158B4 (de) 2010-07-14 2012-06-06 Diehl Ako Stiftung & Co. Kg Wäschebehandlungsgerät
DE102010042492A1 (de) 2010-10-15 2012-04-19 BSH Bosch und Siemens Hausgeräte GmbH Antriebsvorrichtung zum Antreiben einer Komponente eines Hausgeräts, Hausgerät und Verfahren zum Betreiben eines Hausgeräts
JP6634602B2 (ja) * 2016-05-19 2020-01-22 パナソニックＩｐマネジメント株式会社 洗濯機
JP6681541B2 (ja) * 2016-05-27 2020-04-15 パナソニックＩｐマネジメント株式会社 洗濯機
JP6681542B2 (ja) * 2016-05-27 2020-04-15 パナソニックＩｐマネジメント株式会社 洗濯機

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EP1045062A2 (fr) * 1999-03-26 2000-10-18 Samsung Electronics Co., Ltd. Machine à laver

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AT387462B (de) * 1987-01-15 1989-01-25 Austria Antriebstech Einrichtung zur unwuchterkennung
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US5070565A (en) * 1989-04-17 1991-12-10 Emerson Electric Co. Unbalanced load detection system and method for a household appliance
JPH0391511A (ja) 1989-09-04 1991-04-17 Mitsubishi Petrochem Co Ltd α―オレフイン重合用触媒及びその使用
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KR100425851B1 (ko) * 2001-05-10 2004-04-03 엘지산전 주식회사 하나의 전류센서를 이용한 삼상 교류전류 측정 방법
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Publication number Priority date Publication date Assignee Title
EP1045062A2 (fr) * 1999-03-26 2000-10-18 Samsung Electronics Co., Ltd. Machine à laver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679714A2 (fr) 2012-06-26 2014-01-01 Diehl AKO Stiftung & Co. KG Procédé et dispositif de détection d'un déséquilibre dans un appareil de traitement du linge
DE102012021747A1 (de) 2012-06-26 2014-01-02 Diehl Ako Stiftung & Co. Kg Verfahren und Vorrichtung zum Erkennen einer Umwucht in einem Wäschebehandlungsgerät
DE102012021747B4 (de) * 2012-06-26 2021-01-28 Diehl Ako Stiftung & Co. Kg Verfahren und Vorrichtung zum Erkennen einer Umwucht in einem Wäschebehandlungsgerät

Also Published As

Publication number Publication date
US6973392B2 (en) 2005-12-06
DE10234053C1 (de) 2003-11-20
CA2492551A1 (fr) 2004-02-12
AU2003253042A1 (en) 2004-02-23
DE50313295D1 (de) 2011-01-13
WO2004013401A3 (fr) 2004-04-29
ATE490362T1 (de) 2010-12-15
CA2492551C (fr) 2007-11-13
US20050143940A1 (en) 2005-06-30
WO2004013401A2 (fr) 2004-02-12
EP1525349A2 (fr) 2005-04-27

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