EP0921226B1 - Procédé pour répartir le linge dans le tambour d'une machine à laver - Google Patents

Procédé pour répartir le linge dans le tambour d'une machine à laver Download PDF

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Publication number
EP0921226B1
EP0921226B1 EP98122093A EP98122093A EP0921226B1 EP 0921226 B1 EP0921226 B1 EP 0921226B1 EP 98122093 A EP98122093 A EP 98122093A EP 98122093 A EP98122093 A EP 98122093A EP 0921226 B1 EP0921226 B1 EP 0921226B1
Authority
EP
European Patent Office
Prior art keywords
drum
laundry
speed
laundry drum
unbalanced mass
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
EP98122093A
Other languages
German (de)
English (en)
Other versions
EP0921226A2 (fr
EP0921226A3 (fr
Inventor
Stefan Dipl.-Ing Zeh
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
Original Assignee
Diehl AKO Stiftung and Co KG
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 Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP0921226A2 publication Critical patent/EP0921226A2/fr
Publication of EP0921226A3 publication Critical patent/EP0921226A3/fr
Application granted granted Critical
Publication of EP0921226B1 publication Critical patent/EP0921226B1/fr
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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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise 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
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise

Definitions

  • the invention relates to a method according to the preamble of claim 1. as it is known from EP 0 792 963 A2. To put it in a drum laundry to be spun with a horizontal axis of rotation from a momentary imbalance situation redistributing out there is provided the drum speed to a speed of rotation at which the laundry due to the Centrifugal force is pressed against the drum wall, and the drive motor for the drum to decelerate every time it fixes it Unbalanced mass in the course of its rotational movement in an angle of rotation range between 90 ° before the highest position of the unbalanced mass, but at the latest immediately before this highest position.
  • the laundry drum runs at different speeds driven.
  • the laundry drum rotates at a washing speed (for example 50 rpm).
  • the speed is reduced to Spin speed (for example 1000 rpm) run up.
  • Spin speed for example 1000 rpm
  • the laundry lies against the inner wall of the laundry drum.
  • an uneven distribution of the laundry in the laundry drum Imbalance of the laundry drum, which has undesirable effects.
  • From one certain laundry application speed (approx. 80-120 rpm) at which the laundry is safely on lies against the inside wall of the laundry drum i.e. if the centrifugal force is greater than is the gravitational force, this unbalance can be measured. Then the next one follows Spin process depending on this measurement.
  • DE 34 16 639 A1 is a method for controlling the spin program known a washing machine.
  • This method uses a microcomputer control used, which an unbalance detection device and a speed control device having.
  • the laundry drum is opened brought the laundry application speed.
  • the unbalance detection takes place at this speed by the unbalance detection device.
  • the speed or Current consumption behavior of the drive motor of the laundry drum evaluated and one Microcomputer supplied, the presence of an imbalance due to a Rotation of the laundry drum, varying drum speed or current consumption is recognizable.
  • a memory of the microcomputer there is an empirically determined one Reference table filed. The measured data are compared with the data of the Reference table compared. The result of the evaluation then determines the further one Course of the spin process.
  • EP 0 349 798 B1 describes a further method for controlling the Spin process of a drum washing machine known.
  • a swivel The laundry drum is driven by an electric motor.
  • the speed of the Electric motor is controlled by a speed control device.
  • This Position is characterized by a drop in speed, increased motor current consumption and increased torque.
  • the laundry drum is started up to the spin speed the laundry drum is out of this determined position of the unbalance accelerated. This can cause the deflection of the Laundry drum can be reduced. This is particularly important in the critical Speed range of the laundry drum in which resonance phenomena occur. As a result, the spinning process can also result in an impermissibly high imbalance Laundry drum can be performed.
  • EP 0 349 798 B1 is not concerned with one Redistribution of laundry. The laundry drum continues to spin at the spin speed driven, although the unbalance value would normally be impermissibly high.
  • the invention has for its object a method of the type mentioned specify the process of distributing the laundry in the laundry drum is improved.
  • the laundry is targeted in the laundry drum Distributed movements of the laundry drum.
  • the laundry distribution is therefore targeted Influenced.
  • the part of the laundry causing the unbalance moves, so that the laundry is distributed as evenly as possible during the spin cycle is achieved.
  • These targeted movements take place at lower Spin speed, i.e. below the laundry application speed of the laundry drum. Doing so the size of the imbalance of the laundry drum and the position of this imbalance are measured.
  • the laundry drum is determined in certain Positions accelerated or slowed down. Due to the inertia of the unbalanced mass and the gravitational force moves the unbalanced mass and distributes it more favorably.
  • the size and position of the imbalance of the laundry drum can be determined using sensors be measured, which on the force effect or the deflection of the laundry drum speak to.
  • sensors For washing machines with non-vertical, for example horizontal
  • the axis of rotation of the washing drum can determine the position of the unbalance Speed fluctuations of the laundry drum is determined. But others can too Methods are used, for example measuring the motor current consumption or the Torque. The speed fluctuations can then also be derived from these measurements can be determined indirectly.
  • the control of the spin cycle can be done so that the laundry drum certain positions are either only accelerated or only braked.
  • the control can also take one or more cycles of acceleration and then braking the laundry drum and / or one or more cycles from braking and then accelerating the laundry drum.
  • the washing drum is braked very hard, it can distribute the Laundry be advantageous to reverse the direction of rotation of the laundry drum, so that the The laundry drum then starts up in the reverse direction of rotation.
  • the laundry drum is accelerated when the unbalance is in a position in which the unbalance has rotated through 90 ° with respect to a position at which the instantaneous speed of the laundry drum assumes a maximum. It has proven to be very advantageous to brake the laundry drum when the imbalance is in a position in which the imbalance has rotated through 90 ° with respect to a position at which the instantaneous speed of the laundry drum assumes a minimum. In this position, not only the inertial force but also the gravitational force contribute to the unbalanced mass moving relative to the laundry drum.
  • the position of the imbalance is at a Average speed below the laundry loading speed. Depending on the determined imbalance can then jog the laundry drum up to Laundry application speed take place. This jarring run-up can be caused, for example take place that the laundry drum accelerates only at one position is, in which the laundry drum by 90 ° with respect. a position where the current speed of the laundry drum assumes a maximum.
  • the exemplary embodiments described here relate to the control of the Spin process of a washing machine, in which the laundry drum by one horizontal axis of rotation is rotatably mounted.
  • the laundry drum is replaced by a Electric motor driven, its speed by a speed control device is controlled.
  • the washing machine has a device for measuring the Imbalance of the laundry drum.
  • the imbalance can occur, for example Determine the speed fluctuations can be measured.
  • the washing machine works in different speed ranges.
  • the spinning process consists of a laundry application speed range (approx. 80-120 rpm), below which the unbalance is measured, and a spin speed range (approx. 800-1600 U / min.), at which the laundry is spun. If the size of the unbalance is certain Does not exceed the maximum value, the speed of the laundry drum is reduced to Spin speed increased.
  • Such washing machines are known per se and therefore not described in detail here.
  • the instantaneous speed of the laundry drum 10 does not remain constant during one revolution of the laundry drum 10.
  • the unbalanced mass 12 moves from the 0 ° position (arrow 18) to the 180 ° position (arrow 22)
  • the instantaneous speed of the laundry drum 10 will increase because the gravitational force acting on the unbalanced mass 12 accelerates the laundry drum 10.
  • the unbalanced mass 12 moves from the 180 ° position (arrow 22) to the 0 ° position (arrow 18)
  • the instantaneous speed of the laundry drum 10 will decrease because the gravitational force acting on the unbalanced mass 12 brakes the laundry drum 10.
  • the lowest instantaneous speed n min of the laundry drum 10 is measured when the unbalanced mass 12 is in the 0 ° position. Accordingly, the greatest instantaneous speed n max of the laundry drum 10 is measured when the unbalanced mass 12 is in the 180 ° position. The current position of the unbalanced mass 12 can be determined from this.
  • the size of the unbalanced mass 12 is determined by determining the size of the speed difference between the lowest and the highest instantaneous speed n min or n max , the difference in speed being greater the greater the unbalanced mass 12.
  • the Imbalance mass 12 moves specifically, so that the part of the laundry redistributed, which the Causes unbalance.
  • the size of the unbalanced mass 12 is then measured again. If the laundry has moved in the desired manner so that the size of the unbalanced mass 12 now does not exceed a certain value, then the laundry drum 10 is opened the spin speed increased. However, if the size of the unbalance mass 12 continues to exceed an impermissible value, then the unbalanced mass 12 becomes again deliberately moved.
  • the targeted movement of the unbalanced mass 12 takes place in that the Laundry drum 10 accelerated depending on the position of the unbalanced mass 12 and / if necessary. is braked.
  • the unbalanced mass is in the 90 ° position or in the 180 ° position is the effect of gravitational force on the distribution of the Unbalanced mass largest. Accordingly, it has proven to be very beneficial to the Braking the drum 10 at the time at which the unbalanced mass 12 is in the 90 ° position, that is, when the unbalanced mass 12 is 90 ° with respect to the 0 ° position has continued to rotate at which the instantaneous speed of the laundry drum 10 Minimum assumes.
  • the Laundry drum 10 accelerated at the time at which the Imbalance mass 12 is in the 270 ° position, that is when the unbalance mass 12 is around 90 ° with respect to the 180 ° position at which the instantaneous speed of the Washing drum 10 assumes a maximum.
  • the movement of the unbalanced mass 12 by accelerating and braking the Laundry drum 10 can be done in different ways.
  • 2 is a Embodiment shown, in which the laundry drum 10 to the Laundry application speed is accelerated while the unbalanced mass 12 upwards 1 and located between the 270 ° position and the 0 ° position, and is braked while the unbalanced mass 12 moves down in Fig. 1 and moves between the 90 ° position and the 180 ° position.
  • This cycle can be simple or run multiple times.

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

Claims (5)

  1. Procédé pour distribuer la masse de balourd (12) de linge à essorer dans un tambour (10) autour d'un axe de rotation horizontal (16), la position momentanée de la masse de balourd étant dérivée des fluctuations de la vitesse de rotation momentanée du moteur pour l'entraínement du tambour (10), par action sur la vitesse de rotation du tambour en fonction de la position momentanée de la masse de balourd (12), caractérisé en ce que la détermination de la position de la masse de balourd (12) s'effectue à une vitesse de rotation inférieure à la vitesse de pliage du linge, et le tambour (10) est accéléré si la position de la masse de balourd (12) a continué de tourner de 90° à partir de la position dans laquelle la vitesse de rotation momentanée du tambour (10) avait atteint un maximum.
  2. Procédé selon la revendication 1, caractérisé en ce que le tambour (10) est freiné lorsque la position de la masse de balourd (12) a continué de tourner de 90° à partir de la position dans laquelle la vitesse de rotation momentanée du tambour (10) avait atteint un minimum.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la commande de l'opération d'essorage comprend un ou plusieurs cycles d'accélération et de freinage successifs du tambour à linge (10).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la commande de l'opération d'essorage comprend un ou plusieurs cycles constitués de freinages et d'accélérations consécutifs du tambour à linge (10).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le sens de rotation (14) du tambour à linge (10) est inversé en fonction de la position déterminée du balourd (12).
EP98122093A 1997-12-02 1998-11-21 Procédé pour répartir le linge dans le tambour d'une machine à laver Expired - Lifetime EP0921226B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19753382 1997-12-02
DE19753382A DE19753382A1 (de) 1997-12-02 1997-12-02 Verfahren zur Verteilung der Wäsche in einer Wäschetrommel einer Waschmaschine

Publications (3)

Publication Number Publication Date
EP0921226A2 EP0921226A2 (fr) 1999-06-09
EP0921226A3 EP0921226A3 (fr) 1999-10-27
EP0921226B1 true EP0921226B1 (fr) 2002-10-23

Family

ID=7850471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122093A Expired - Lifetime EP0921226B1 (fr) 1997-12-02 1998-11-21 Procédé pour répartir le linge dans le tambour d'une machine à laver

Country Status (3)

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EP (1) EP0921226B1 (fr)
DE (2) DE19753382A1 (fr)
ES (1) ES2189071T3 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008055091A1 (de) 2008-12-22 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Steuern eines Wäscheverteilbetriebs eines Haushaltsgeräts zur Pflege von Wäschestücken
US8533882B2 (en) * 2009-11-20 2013-09-17 Whirlpool Corporation Laundry treating appliance with controlled oscillating movement
DE102011087644B3 (de) 2011-12-02 2012-12-13 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einer verbesserten Schleuderphase
DE102011089107A1 (de) 2011-12-20 2013-06-20 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Haushaltsgerätes zur Behandlung darin eingebrachter Gegenstände
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
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
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
US10041202B2 (en) 2015-11-19 2018-08-07 Whirlpool Corporation Laundry treating appliance and methods of operation
DE102017219081A1 (de) * 2017-10-25 2019-04-25 BSH Hausgeräte GmbH Verfahren zum Betreiben eines Haushaltsgeräts zur Pflege von Wäschestücken mit Erkennung einer Unwucht anhand von zwei Eingangskanälen sowie Haushaltsgerät
DE102019202071A1 (de) * 2019-02-15 2020-08-20 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
WO2020229030A1 (fr) * 2019-05-14 2020-11-19 Arcelik Anonim Sirketi Machine à laver et son procédé de fonctionnement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822924C1 (fr) * 1988-07-07 1989-11-23 Miele & Cie Gmbh & Co, 4830 Guetersloh, De
KR100232265B1 (en) * 1996-02-27 1999-12-01 Sanyo Electric Co Centrifugal dehydrator

Also Published As

Publication number Publication date
EP0921226A2 (fr) 1999-06-09
ES2189071T3 (es) 2003-07-01
EP0921226A3 (fr) 1999-10-27
DE59806039D1 (de) 2002-11-28
DE19753382A1 (de) 1999-06-10

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