EP0236857A2 - Method for correcting the admissible out-of-balance degree of a programme-controlled washing machine - Google Patents
Method for correcting the admissible out-of-balance degree of a programme-controlled washing machine Download PDFInfo
- Publication number
- EP0236857A2 EP0236857A2 EP87102685A EP87102685A EP0236857A2 EP 0236857 A2 EP0236857 A2 EP 0236857A2 EP 87102685 A EP87102685 A EP 87102685A EP 87102685 A EP87102685 A EP 87102685A EP 0236857 A2 EP0236857 A2 EP 0236857A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- entered
- control unit
- admissible
- programme
- 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
- 238000005406 washing Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009987 spinning Methods 0.000 abstract description 3
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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
-
- 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
-
- 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
Definitions
- the invention relates to a method for correcting the unbalance size limit value for a program-controlled washing machine with a motor-driven washing and spinning drum, in which an unbalance size limit value for the centrifuged material is entered into the program control unit.
- a method for controlling the spin program of a washing machine is known from DE-OS 26 20 464, in which an unbalance measurement is carried out, which then determines the further course of the spin program.
- the fluctuations in the current consumption or the speed of the washing and centrifugal drum drive motor are evaluated as an indication of a possible imbalance of the washing and centrifuging drum. If an unbalance greater than the entered unbalance size limit value is determined, the drive motor is controlled via a speed control device such that the items to be washed or centrifuged can be redistributed. If this does not lead to success after several attempts, the speed is reduced to a lower speed.
- a disadvantage of the known method is that the imbalance detection is very inaccurate and does not guarantee an optimal centrifugal process under all possible operating conditions.
- the invention is based on the object of addressing a method for correcting the unbalance size limit value, by means of which an automatic optimization to a maximum spin speed and thus optimal dewatering of the spin or laundry items with low or minimal laundry item imbalance in the washing and spin dryer drum is achieved .
- the object is achieved according to the invention in that the actual value fluctuations in the drive motor speed are determined during the centrifugal material distribution phase and in that the unbalance size limit value entered in the program control unit is corrected on the basis of the parameters entered into the program control unit, such as the type of laundry and quantity of laundry, or on the basis of the measured quantity of laundry and the type of laundry entered.
- the actual value fluctuations in the speed of the drive motor for the washing and centrifuging drums, which are determined during the distribution phase of the centrifuged material thus represent the measure or the unbalance variable for the centrifugal material distribution.
- the actual value fluctuations of the speed are the smaller, the greater the individual unbalance symmetrical base load and spin speed in the washing and spinning drum.
- This symmetrical base load is in turn dependent on the absorbency and / or the amount of the items to be washed or spun, so that the unbalance size determined with the aid of the determined fluctuations in the actual value can be corrected with a laundry type and laundry quantity correction factor which is greater than 1. This ensures that the centrifuging time is optimized in relation to the centrifuge distribution in the centrifugal drum.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Korrektur des Unwuchtgrößengrenzwertes für eine programmgesteuerte Waschmaschine mit einer motorisch angetriebenen Wasch- und Schleudertrommel, bei der der Programmsteuereinheit ein Unwuchtgrößengrenzwert für das Schleudergut eingegeben ist.The invention relates to a method for correcting the unbalance size limit value for a program-controlled washing machine with a motor-driven washing and spinning drum, in which an unbalance size limit value for the centrifuged material is entered into the program control unit.
Es ist ein Verfahren zur Steuerung des Schleuderprogramms einer Waschmaschine aus der DE- OS 26 20 464 bekannt, bei dem eine Unwuchtmessung durchgeführt wird, die dann den weiteren Ablauf des Schleuderprogramms bestimmt. Hierbei werden die Schwankungen der Stromaufnahme oder der Drehzahl des Wasch- und Schleudertrommelantriebsmotors als Indiz für eine eventuell vorliegende Unwucht der Wasch- und Schleudertrommel ausgewertet. Wird eine Unwucht größer als der eingegebene Unwuchtgrößengrenzwert festgestellt, so wird über eine Drehzahlregeleinrichtung der Antriebsmotor derart angesteuert, daß das Wasch- bzw. Schleudergut sich neu verteilen kann. Führt dies nach mehrmaligem Versuch nicht zum Erfolg, so wird auf eine niedere Drehzahl heruntergefahren. Ein Nachteil beim bekannten Verfahren besteht jedoch darin, daß die Unwuchterfassung nur sehr ungenau erfolgt und nicht bei allen möglichen Betriebsbedingungen einen optimalen Schleuderablauf gewährleistet.A method for controlling the spin program of a washing machine is known from DE-OS 26 20 464, in which an unbalance measurement is carried out, which then determines the further course of the spin program. The fluctuations in the current consumption or the speed of the washing and centrifugal drum drive motor are evaluated as an indication of a possible imbalance of the washing and centrifuging drum. If an unbalance greater than the entered unbalance size limit value is determined, the drive motor is controlled via a speed control device such that the items to be washed or centrifuged can be redistributed. If this does not lead to success after several attempts, the speed is reduced to a lower speed. A disadvantage of the known method, however, is that the imbalance detection is very inaccurate and does not guarantee an optimal centrifugal process under all possible operating conditions.
Ferner ist es bekannt, um während der Endschleuderphase in der Wasch- und Schleudertrommel eine niedrige und somit noch vertretbare Unwucht zu haben, von vornherein einen niederen Unwuchtgrenzwert dem Programm vorzugeben. Die Folge davon ist die, daß auch bei einer minimalen Wäscheunwucht mit einer an sich nicht erforderlichen niedrigen Drehzahl bzw.durch das mehrmalige Neuverteilen des Schleudergutes mit einer langen Schleuderzeit gearbeitet wird.Furthermore, in order to have a low and thus still acceptable unbalance during the final spin phase in the washing and centrifuging drum, it is predetermined from the outset to program a lower unbalance limit. The consequence of this is that even with a minimal laundry imbalance with a low speed which is not required per se or because of the repeated redistribution of the centrifuge material, a long spin time is used.
Der Erfindung liegt nun die Aufgabe zu Grunde, ein Verfahren zur Korrektur des Unwuchtgrößengrenzwertes anzugehen, durch welches eine automatische Optimierung auf eine maximale Schleuderdrehzahl und damit optimale Entwässerung des Schleuder- bzw. Waschgutes bei geringer bzw. minimaler Wäschegutunwucht in der Wasch- und Schleudertrommel erreicht wird.The invention is based on the object of addressing a method for correcting the unbalance size limit value, by means of which an automatic optimization to a maximum spin speed and thus optimal dewatering of the spin or laundry items with low or minimal laundry item imbalance in the washing and spin dryer drum is achieved .
Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß während der Schleudergutverteilungsphase die Istwertschwankungen der Antriebsmotordrehzahl ermittelt werden, und daß auf Grund der der Programmsteuereinheit eingegebenen Parameter, wie Wäscheart und Waschgutmenge oder auf Grund des gemessenen Waschgutmengenistwertes und eingegebenen Wäscheart der der Programmsteuereinheit eingegebene Unwuchtgrößengrenzwert korrigiert wird. Die Istwertschwankungen der Drehzahl des Antriebsmotors für die Wasch- und Schleudertrommel, die während der Verteilungsphase des Schleudergutes ermittelt werden, stellen damit das Maß bzw. die Unwuchtgröße für die Schleudergutverteilung dar. Die Istwertschwankungen der Drehzahl sind bei gleicher Einzelunwucht um so kleiner, je größer die symetrische Grundlast und Schleuderdrehzahl in der Wasch- und Schleudertrommel ist. Diese symetrische Grundlast ist wiederum abhängig von der Saugfähigkeit und/oder der Menge des Wasch- bzw. Schleudergutes, so daß die mit Hilfe der festgestellten Istwertschwankungen ermittelte Unwuchtgröße mit einem Wäscheart- und Wäschemengenkorrekturfaktor, der größer als 1 ist, korrigiert werden kann. Damit wird erreicht, daß die Schleuderzeit bezogen auf die Schleudergutverteilung in der Schleudertrommel optimiert wird.The object is achieved according to the invention in that the actual value fluctuations in the drive motor speed are determined during the centrifugal material distribution phase and in that the unbalance size limit value entered in the program control unit is corrected on the basis of the parameters entered into the program control unit, such as the type of laundry and quantity of laundry, or on the basis of the measured quantity of laundry and the type of laundry entered. The actual value fluctuations in the speed of the drive motor for the washing and centrifuging drums, which are determined during the distribution phase of the centrifuged material, thus represent the measure or the unbalance variable for the centrifugal material distribution. The actual value fluctuations of the speed are the smaller, the greater the individual unbalance symmetrical base load and spin speed in the washing and spinning drum. This symmetrical base load is in turn dependent on the absorbency and / or the amount of the items to be washed or spun, so that the unbalance size determined with the aid of the determined fluctuations in the actual value can be corrected with a laundry type and laundry quantity correction factor which is greater than 1. This ensures that the centrifuging time is optimized in relation to the centrifuge distribution in the centrifugal drum.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863606819 DE3606819A1 (en) | 1986-03-03 | 1986-03-03 | METHOD FOR CORRECTING THE UNBALANCED LIMIT VALUE FOR A PROGRAM-CONTROLLED WASHING MACHINE |
DE3606819 | 1986-03-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0236857A2 true EP0236857A2 (en) | 1987-09-16 |
EP0236857A3 EP0236857A3 (en) | 1988-06-08 |
EP0236857B1 EP0236857B1 (en) | 1992-12-09 |
Family
ID=6295332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87102685A Expired - Lifetime EP0236857B1 (en) | 1986-03-03 | 1987-02-25 | Method for correcting the admissible out-of-balance degree of a programme-controlled washing machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0236857B1 (en) |
DE (2) | DE3606819A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622477A1 (en) * | 1987-10-30 | 1989-05-05 | Licentia Gmbh | |
EP0335790A1 (en) * | 1988-03-29 | 1989-10-04 | Esswein S.A. | Balance detection means in the washing machines |
GB2244149A (en) * | 1990-03-30 | 1991-11-20 | Toshiba Kk | Washing machine control |
EP0687760A3 (en) * | 1994-06-16 | 1996-08-21 | Merloni Elettrodomestici Spa | Method for verifying the laundry load conditions in a laundry washing and/or drying machine, and machine which implements such method |
EP1342826A1 (en) * | 2002-03-04 | 2003-09-10 | Primus N.V. | System for managing out-of-balance of loads in a laundry apparatus |
EP1538251A3 (en) * | 2003-11-25 | 2009-02-25 | Samsung Electronics Co., Ltd. | Washing machine and control method thereof |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3804720A1 (en) * | 1988-02-15 | 1989-08-24 | Siemens Ag | METHOD FOR DIAGNOSIS OF MECHANICAL PROPERTIES OF THE ROTATING PARTS OF ROLLING MACHINES |
DE3824799A1 (en) * | 1988-07-21 | 1990-01-25 | Licentia Gmbh | Control process for a laundry dryer working on the drum principle |
DE9013638U1 (en) * | 1990-09-28 | 1990-12-06 | Siemens AG, 8000 München | Engine monitoring arrangement |
DE4101341A1 (en) * | 1991-01-18 | 1992-07-23 | Ako Werke Gmbh & Co | Frequency transverter for operating polyphase induction motor - with control electronics to set operating frequency and voltage according to ideal motor speed |
DE4119902A1 (en) * | 1991-06-17 | 1993-01-07 | Elektronik Regelautomatik | Drive unit for washing machines etc. - has three=phase asynchronous motor with at least 2 slots per pole and phase |
DE4141213C2 (en) * | 1991-12-13 | 1996-12-12 | Bosch Siemens Hausgeraete | Method for determining the dry weight of laundry, the water level and the bound liquor in a drum washing machine and washing machine for carrying out the method |
DE4204046A1 (en) * | 1992-02-12 | 1993-08-19 | Licentia Gmbh | Program-controlled washing machine with laundry drum - features automatic controlling water supply from difference between drum speeding-up and slowing-down times |
DE4206135A1 (en) * | 1992-02-28 | 1993-09-02 | Licentia Gmbh | Controlling spinning process of drum washing machine - using revolution speed control device for electric motor which is supplied with washing parameters., e.g. vol. of washing and/or type of washing, etc. |
DE4221772A1 (en) * | 1992-07-02 | 1994-01-05 | Licentia Gmbh | Registering imbalance in household washing machines - by measuring speed fluctations of the two reversing directions of rotation in washing and rinsing processes, etc. |
DE4229646C2 (en) * | 1992-09-04 | 1998-08-06 | Bosch Siemens Hausgeraete | Process for spinning wet laundry |
DE4235614C2 (en) * | 1992-10-22 | 2000-02-10 | Ako Werke Gmbh & Co | Procedure for determining the unbalance of a loaded washing machine drum |
DE4418721A1 (en) * | 1994-05-28 | 1995-11-30 | Licentia Gmbh | Control process for domestic dishwasher pump |
IT1267586B1 (en) | 1994-09-28 | 1997-02-07 | Zanussi Elettrodomestici | WASHING MACHINE WITH PERFECTED ANTI-UNBALANCING DEVICE |
KR100977575B1 (en) | 2008-05-23 | 2010-08-23 | 엘지전자 주식회사 | Washing machine and method for controlling washing machine |
KR101028087B1 (en) | 2008-05-23 | 2011-04-08 | 엘지전자 주식회사 | Washing machine and method for controlling washing machine |
KR101028089B1 (en) | 2008-05-23 | 2011-04-08 | 엘지전자 주식회사 | Washing machine and method for controlling washing machine |
KR101028086B1 (en) | 2008-05-23 | 2011-04-08 | 엘지전자 주식회사 | Washing machine and method for controlling washing machine |
KR100977576B1 (en) | 2008-05-23 | 2010-08-23 | 엘지전자 주식회사 | Washing machine and method for controlling washing machine |
KR100977574B1 (en) | 2008-05-23 | 2010-08-23 | 엘지전자 주식회사 | Washing machine and method for controlling washing machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2620464A1 (en) * | 1975-05-22 | 1976-12-02 | Philips Nv | METHOD AND MACHINE FOR WASHING AND SPINNING LAUNDRY |
CH651602A5 (en) * | 1982-07-20 | 1985-09-30 | Terraillon | Washing machine |
DE3416639A1 (en) * | 1984-05-05 | 1985-11-07 | Miele & Cie GmbH & Co, 4830 Gütersloh | Process for controlling the spin programme of a washing machine |
-
1986
- 1986-03-03 DE DE19863606819 patent/DE3606819A1/en not_active Withdrawn
-
1987
- 1987-02-25 DE DE8787102685T patent/DE3782955D1/en not_active Expired - Fee Related
- 1987-02-25 EP EP87102685A patent/EP0236857B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2620464A1 (en) * | 1975-05-22 | 1976-12-02 | Philips Nv | METHOD AND MACHINE FOR WASHING AND SPINNING LAUNDRY |
CH651602A5 (en) * | 1982-07-20 | 1985-09-30 | Terraillon | Washing machine |
DE3416639A1 (en) * | 1984-05-05 | 1985-11-07 | Miele & Cie GmbH & Co, 4830 Gütersloh | Process for controlling the spin programme of a washing machine |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622477A1 (en) * | 1987-10-30 | 1989-05-05 | Licentia Gmbh | |
EP0335790A1 (en) * | 1988-03-29 | 1989-10-04 | Esswein S.A. | Balance detection means in the washing machines |
FR2629484A1 (en) * | 1988-03-29 | 1989-10-06 | Esswein Sa | IMPROVEMENT TO MEANS FOR DETECTING BALOURS IN WASHING MACHINES |
GB2244149A (en) * | 1990-03-30 | 1991-11-20 | Toshiba Kk | Washing machine control |
GB2244149B (en) * | 1990-03-30 | 1994-02-09 | Toshiba Kk | Washing machine |
EP0687760A3 (en) * | 1994-06-16 | 1996-08-21 | Merloni Elettrodomestici Spa | Method for verifying the laundry load conditions in a laundry washing and/or drying machine, and machine which implements such method |
EP1045061A2 (en) * | 1994-06-16 | 2000-10-18 | Merloni Elettrodomestici S.p.A. | Method for verifying the laundry load conditions in a laundry washing and/or drying machine, and machine which implements such method |
EP1045061A3 (en) * | 1994-06-16 | 2002-05-15 | Merloni Elettrodomestici S.p.A. | Method for verifying the laundry load conditions in a laundry washing and/or drying machine, and machine which implements such method |
EP1342826A1 (en) * | 2002-03-04 | 2003-09-10 | Primus N.V. | System for managing out-of-balance of loads in a laundry apparatus |
EP1538251A3 (en) * | 2003-11-25 | 2009-02-25 | Samsung Electronics Co., Ltd. | Washing machine and control method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE3606819A1 (en) | 1987-09-10 |
DE3782955D1 (en) | 1993-01-21 |
EP0236857B1 (en) | 1992-12-09 |
EP0236857A3 (en) | 1988-06-08 |
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