EP0921226A2 - Verfahren zur Verteilung der Wäsche in einer Wäschetrommel einer Waschmaschine - Google Patents
Verfahren zur Verteilung der Wäsche in einer Wäschetrommel einer Waschmaschine Download PDFInfo
- Publication number
- EP0921226A2 EP0921226A2 EP98122093A EP98122093A EP0921226A2 EP 0921226 A2 EP0921226 A2 EP 0921226A2 EP 98122093 A EP98122093 A EP 98122093A EP 98122093 A EP98122093 A EP 98122093A EP 0921226 A2 EP0921226 A2 EP 0921226A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- laundry drum
- unbalance
- drum
- speed
- 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
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
- 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 for distributing the laundry in a laundry drum a washing machine by controlling the spin cycle of the washing machine.
- 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 arises 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 accelerates. 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 are preferably made at lower Spin speed, e.g. at 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 position of the imbalance of the laundry drum is preferably at or above the Laundry application speed determined.
- the position of the unbalance can also be 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, by this take place that the laundry drum accelerates only at a certain position becomes.
- This position can be the one at which the laundry drum rotates 90 ° with respect to 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), at 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 / or 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 movement of the unbalanced mass 12 by accelerating and braking the Laundry drum 10 can be done in different ways.
- 2 is a first Embodiment shown, in which the laundry drum 10 at 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.
- the laundry drum 10 is determined at Positions of the unbalanced mass 12 braked and then back to the laundry application speed at which the unbalance is measured again.
- the braking of the laundry drum 10 can also here at the 90 ° position the unbalanced mass 12 take place, this cycle also simple or can be executed multiple times.
- control of the spinning process is like this designed that the laundry drum 10 braked as in the second embodiment becomes. However, if the braking process turns out to be very strong, the following occurs Run-up of the laundry drum 10 in the inverse direction of rotation.
- the unbalance is already below the Laundry application speed measured. If there is an impermissibly large imbalance the laundry drum 10 then vibrates up to the laundry application speed. The jarring run-up can take place in that the laundry drum 10 is always accelerated when the unbalanced mass 12 is in the 270 ° position located.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
- Fig. 1
- ist ein schematische Darstellung und zeigt ein Schnitt durch eine Wäschetrommel zur Veranschaulichung der gemessenen Drehzahlen der Wäschetrommel in Abhängigkeit von der aktuellen Position einer Unwuchtmasse.
- Fig. 2
- zeigt ein Diagramm und veranschaulicht ein Ausführungsbeispiel der Steuerung des Schleudervorgangs einer Waschmaschine, bei welchem eine Beschleunigungs- und eine Bremsphase während eines Zyklus in Abhängigkeit von der Position der Unwuchtmasse dargestellt sind.
Claims (8)
- Verfahren zur Verteilung der Wäsche in einer Wäschetrommel (10) einer Waschmaschine durch Steuerung des Schleudervorgangs der Waschmaschine,
gekennzeichnet durch(a) Ermitteln der Position der Unwucht (12) der Wäschetrommel (10), und(b) Beschleunigen bzw. Bremsen der Wäschetrommel (10) in Abhängigkeit von der ermittelten Position der Unwucht (12) der Wäschetrommel (10), so daß die Wäsche in der Wäschetrommel (10) während dieses Beschleunigens bzw. Bremsens neu verteilt wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Position der Unwucht (12) durch Bestimmung der Drehzahlschwankungen der Wäschetrommel (10) ermittelt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Steuerung des Schleudervorgangs einen oder mehreren Zyklen aus Beschleunigen und anschließendem Bremsen der Wäschetrommel (10) beinhaltet.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Steuerung des Schleudervorgangs einen oder mehrere Zyklen aus Bremsen und anschließendem Beschleunigen der Wäschetrommel (10) beinhaltet.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Drehrichtung (14) der Wäschetrommel (10) in Abhängigkeit von der ermittelten Position der Unwucht (12) umgekehrt wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Wäschetrommel (10) in einem Zeitpunkt gebremst wird, bei welcher sich die Unwucht (12) in einer Position (20) befindet, in welcher sich die Unwucht (12) um 90° bzgl. einer Position (18) weitergedreht hat, bei welcher die Momentandrehzahl der Wäschetrommel (10) ein Minimum annimmt.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Wäschetrommel (10) in einem Zeitpunkt beschleunigt wird, bei welcher sich die Unwucht (12) in einer Position (24) befindet, in welcher sich die Unwucht (12) um 90° bzgl. einer Position (22) weitergedreht hat, bei welcher die Momentandrehzahl der Wäschetrommel (10) ein Maximum annimmt.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Ermitteln der Position der Unwucht (12) der Wäschetrommel (10) bei einer Drehzahl unterhalb der Wäscheanlegedrehzahl erfolgt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19753382A DE19753382A1 (de) | 1997-12-02 | 1997-12-02 | Verfahren zur Verteilung der Wäsche in einer Wäschetrommel einer Waschmaschine |
| DE19753382 | 1997-12-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0921226A2 true EP0921226A2 (de) | 1999-06-09 |
| EP0921226A3 EP0921226A3 (de) | 1999-10-27 |
| EP0921226B1 EP0921226B1 (de) | 2002-10-23 |
Family
ID=7850471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98122093A Expired - Lifetime EP0921226B1 (de) | 1997-12-02 | 1998-11-21 | Verfahren zur Verteilung der Wäsche in einer Wäschetrommel einer Waschmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0921226B1 (de) |
| DE (2) | DE19753382A1 (de) |
| ES (1) | ES2189071T3 (de) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130326825A1 (en) * | 2009-11-20 | 2013-12-12 | Whilrlpool Corporation | Laundry treating appliance with controlled oscillating movement |
| US9863080B2 (en) | 2015-11-19 | 2018-01-09 | 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 |
| US9885135B2 (en) | 2015-11-19 | 2018-02-06 | 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 |
| US9988751B2 (en) | 2015-07-29 | 2018-06-05 | Whirlpool Corporation | Laundry treating appliance and methods of reducing tub contact therein |
| 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 |
| US10273621B2 (en) | 2015-10-01 | 2019-04-30 | Whirlpool Corporation | Laundry treating appliance and methods of operation |
| EP3696306A1 (de) * | 2019-02-15 | 2020-08-19 | BSH Hausgeräte GmbH | Wäschepflegegerät mit einer steuerung |
| WO2020229030A1 (en) * | 2019-05-14 | 2020-11-19 | Arcelik Anonim Sirketi | A washing machine and the operating method thereof |
Families Citing this family (5)
| 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 |
| 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 |
| 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 |
| WO2023111968A1 (en) | 2021-12-16 | 2023-06-22 | Fisher & Paykel Appliances Limited | Improvements relating to laundry apparatus and/or their control |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3822924C1 (de) * | 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 |
-
1997
- 1997-12-02 DE DE19753382A patent/DE19753382A1/de not_active Withdrawn
-
1998
- 1998-11-21 EP EP98122093A patent/EP0921226B1/de not_active Expired - Lifetime
- 1998-11-21 DE DE59806039T patent/DE59806039D1/de not_active Expired - Fee Related
- 1998-11-21 ES ES98122093T patent/ES2189071T3/es not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130326825A1 (en) * | 2009-11-20 | 2013-12-12 | Whilrlpool Corporation | Laundry treating appliance with controlled oscillating movement |
| US9988751B2 (en) | 2015-07-29 | 2018-06-05 | Whirlpool Corporation | Laundry treating appliance and methods of reducing tub contact therein |
| US11739466B2 (en) | 2015-10-01 | 2023-08-29 | Whirlpool Corporation | Laundry treating appliance and methods of operation |
| US11486074B2 (en) | 2015-10-01 | 2022-11-01 | Whirlpool Corporation | Laundry treating appliance and methods of operation |
| US10669663B2 (en) | 2015-10-01 | 2020-06-02 | Whirlpool Corporation | Laundry treating appliance and methods of operation |
| US10273621B2 (en) | 2015-10-01 | 2019-04-30 | Whirlpool Corporation | Laundry treating appliance and methods of operation |
| US10087565B2 (en) | 2015-11-19 | 2018-10-02 | 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 |
| US9988753B2 (en) | 2015-11-19 | 2018-06-05 | 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 |
| US10301762B2 (en) | 2015-11-19 | 2019-05-28 | 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 |
| 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 |
| EP3696306A1 (de) * | 2019-02-15 | 2020-08-19 | BSH Hausgeräte GmbH | Wäschepflegegerät mit einer steuerung |
| WO2020229030A1 (en) * | 2019-05-14 | 2020-11-19 | Arcelik Anonim Sirketi | A washing machine and the operating method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0921226A3 (de) | 1999-10-27 |
| DE19753382A1 (de) | 1999-06-10 |
| DE59806039D1 (de) | 2002-11-28 |
| ES2189071T3 (es) | 2003-07-01 |
| EP0921226B1 (de) | 2002-10-23 |
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