EP1738013A1 - Verfahren zur bestimmung der ladung - Google Patents

Verfahren zur bestimmung der ladung

Info

Publication number
EP1738013A1
EP1738013A1 EP05718534A EP05718534A EP1738013A1 EP 1738013 A1 EP1738013 A1 EP 1738013A1 EP 05718534 A EP05718534 A EP 05718534A EP 05718534 A EP05718534 A EP 05718534A EP 1738013 A1 EP1738013 A1 EP 1738013A1
Authority
EP
European Patent Office
Prior art keywords
speed
load
fall
spinning
ramp
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
EP05718534A
Other languages
English (en)
French (fr)
Other versions
EP1738013B1 (de
Inventor
K.; c/o Arcelik Anonim Sirketi ERENAY
A; c/o Arcelik Anonim Sirketi BAYKUT
L.; c/o Arcelik Anonim Sirketi TEZDUYAR
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1738013A1 publication Critical patent/EP1738013A1/de
Application granted granted Critical
Publication of EP1738013B1 publication Critical patent/EP1738013B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D06F2103/24—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
    • D06F2103/44—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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed

Definitions

  • This invention is related to a method of detecting the weight of the laundry placed into the drum in order to provide efficient performance of the washing machine.
  • the water to be taken, amount of cleaning agent and softeners, time period and cycle of the washing are determined according to the type and weight of the laundry to be washed. Also, in case the laundries are not equally distributed on the sidewall of the drum during the spinning cycle, centrifugal forces formed thereof may create detrimental vibrations and can cause moving of the machine and excessive forcing of the machine.
  • load is determined based on the speed fluctuation during the washing cycle. Load is determined by the rising and falling down of the laundry in the drum.
  • load is estimated by the location and drawn voltage of the laundry placed into the drum rotating around its central axis.
  • the objective of this invention is to realize a method of detecting the load of the laundry placed into the washing machines in the most realistic way.
  • Figure 1 is the schematic view of a dryer/washer.
  • Figure 2 is the flow chart of a load detection method.
  • Figure 3 is the graphical view of the change in the number of cycle in a load detection method applied before washing cycle.
  • Figure 4 is the graphical view of the change in the number of cycles in a method of detection load applied before the rinsing cycle.
  • Figure 5 is the graphical view of the change in the number of cycles in a method of detection load applied before the spinning cycle.
  • the washing machines (1) preferably front loading washing machines comprises a drum (2) into which the laundry which is called load is placed and realizes washing and spinning by rotating around an axis, an electronic control card (3), a microprocessor (5) and a data storing unit (4).
  • Data storing unit (4) may be an external unit on the control card (3) or else an internal unit in a microprocessor such as RAM, ROM or EEPROM. In the preferrred embodiment, data is saved on a ROM in the microprocessor (5).
  • Washing machines perform the washing job in various program stages (PA) as washing cycle (PY) and/or rinsing cycle (PD) and/or spinning cycle (PS).
  • PA program stages
  • PY washing cycle
  • PD rinsing cycle
  • PS spinning cycle
  • the present load detection method comprises of the following steps - A distribution step (200) during which the unbalance is decreased or eliminated that is caused by the distribution of the laundry in the washing machine at a speed (Vy) preset by the manufacturer; - Speed deviation measuring step (300) in which first measurement is made at a test speed (Vt) preset by the manufacturer, absolute value deviations between measured speed values (V) and test speed (Vt) are calculated ( I V - Vt I ) and added that gives the speed deviation (Sv) at the test speed (Vt), determining whether or not to proceed with the process according to the value obtained in the comparisons and distribution of the unbalanced load and in order to pumping water out returning back to the distribution step (200) or to the next step ; - Ramp step (400) in which a pre-spinning speed (Vo) higher than the test speed (Vt) by a momentary acceleration is reached, the ramp period (t ramp) between the period from the test speed (Vt) and the pre-spinning
  • the ramp temporary load value (Yr) is found by using the values obtained in the ramp stage (400)
  • fall temporary load value (Yf) is found by using the values obtained in the fall stage (600)
  • corrected load (Y) value is found by using the obtained ramp temporary load value (Yr) and fall temporary load value
  • the unbalanced load (DY) value is obtained by the obtained load (Y) and the way to start and to continue the program stages (PA) are determined according to the unbalanced load (DY) values.
  • Distribution step (200) comprises the steps of reaching a test speed (Vt) which is substantially lower than the resonance speed (Vr) that corresponds to the natural frequency of the entire washer and that harms itself at this frequency, which enables the laundry to cling on to the drum (2) due to the washing speed at a low speed and a long time interval and which results from the washers structure; and of waiting for a c ertain amount of time for the drum (2) speed within a specific time interval to settle into the constant test speed (Vt).
  • evacuation pump continuously pumps out the accumulated water.
  • Obtained deviation value (Sv) from the test speed (Vt) is compared with the reference values obtained during design and manufacturing stages and recorded into the microprocessor (5) and unbalanced load amount in an empty drum is calculated. These values are equal to the minimum unbalanced load amount according to the other balanced load position. If this value does not permit to move to the pre-spinning step, before doing this, drum (2) is stopped and distribution step is repeated (200). If minimum unbalanced load amount obtained at the result of this process cannot be lowered to a limit preset by the manufacturer, distribution step (200) is repeated equal to the number of maximum cycle number. In case it is not succeeded, unbalanced load amount is accepted as a value specified as a result of test data and the cycle is proceeded.
  • GTr T (G ram p)j 2) t ramp — t ramp « ⁇ l - t ramp start (eCjV ltlOll J ⁇
  • the load (Y) quantity which is stored in the data storing unit (4) and which is found by solving the equations (equation 1 to eqution 8) with the parameters and the measurment values calculated from the results of the reference experiments carried out during design and production, the water quantity, the washing material such as detergant and softener quantity and the washing steps and the intervals to be used are selected according to the options predetermined by the manufacturer; and at the same time by comparing the experimental data defined for the spinning speeds that correspond to the obtained load (Y) quantity and the determined unbalanced load (DY) values, the spining profiles which comprise parameters such as the speed and the duration to be applied in the rinsing and the spinning stages are determined and applied.
  • the load detection method in a washer (1) which has a resonance frequency around 200 revolution minute the test speed (Vt) used is 100 revolution/minute and the pre spinning speed (Vo) is 400 revolution/ minute.
  • the load detection method by properly determining the loads at the beginning of the washing process, appropriate washing algorithms can be applied by comsuming low energy and by using the required amount of washing material and water quantity. Consequently, it is possible to produce low volume washing machines that have high load capacities.
  • the unbalanced load values (DY) which are calculated from the load (Y) values, problems resulting from spinning such as opening of the drum, breaking of the bearings, wearinng out of the damper and the burden of service is decreased and at the same time it is possible for the user to use the washer/ dryer by using minimum detergant, softener quantities and minimum time and minimum energy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detergent Compositions (AREA)
EP05718534A 2004-03-01 2005-03-01 Verfahren zur bestimmung der ladung Not-in-force EP1738013B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200400381 2004-03-01
PCT/IB2005/050751 WO2005085511A1 (en) 2004-03-01 2005-03-01 A load detection method

Publications (2)

Publication Number Publication Date
EP1738013A1 true EP1738013A1 (de) 2007-01-03
EP1738013B1 EP1738013B1 (de) 2012-01-11

Family

ID=34918986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05718534A Not-in-force EP1738013B1 (de) 2004-03-01 2005-03-01 Verfahren zur bestimmung der ladung

Country Status (4)

Country Link
EP (1) EP1738013B1 (de)
AT (1) ATE541076T1 (de)
TR (1) TR200604628T1 (de)
WO (1) WO2005085511A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2565315A3 (de) * 2011-09-01 2018-01-24 Samsung Electronics Co., Ltd. Waschmaschine und Steuerungsverfahren dafür

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE524593T1 (de) * 2006-10-31 2011-09-15 Arcelik As Verfahren zur bestimmung des gewichts der last in einer waschmaschine mit trockner anhand der eigenfrequenzreaktion der beladenen trommel
KR101211590B1 (ko) * 2008-10-29 2012-12-12 주식회사 대우일렉트로닉스 액체세제 공급장치를 가지는 세탁기의 제어방법
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
US20120005840A1 (en) * 2010-07-06 2012-01-12 Jang Hoyong Washing machine and method for controlling the same
US20130160221A1 (en) * 2011-12-22 2013-06-27 Whirlpool Corporation Method for maximizing drum rotational speed by continuously monitoring inertia during extraction
KR102577545B1 (ko) 2016-09-27 2023-09-11 엘지전자 주식회사 세탁기 및 그 제어방법
KR102520506B1 (ko) 2016-09-29 2023-04-10 엘지전자 주식회사 세탁기 및 그 제어방법
KR102517609B1 (ko) 2016-09-29 2023-04-03 엘지전자 주식회사 세탁기 및 그 제어방법
KR102527576B1 (ko) * 2016-10-07 2023-04-28 엘지전자 주식회사 세탁기 및 그 제어방법

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Publication number Priority date Publication date Assignee Title
IT1256270B (it) * 1991-10-11 1995-11-29 Zanussi Elettrodomestici Procedimento di misurazione del peso della biancheria per macchina lavatrice di biancheria.
DE4431846C2 (de) * 1994-09-07 2001-02-15 Diehl Ako Stiftung Gmbh & Co Verfahren zum beladungsabhängigen Steuern und/oder Regeln einer Waschmaschine oder eines Wäschetrockners
IT1267587B1 (it) * 1994-09-28 1997-02-07 Zanussi Elettrodomestici Lavabiancheria perfezionata con determinazione automatica del peso
DE19857903A1 (de) * 1997-12-16 1999-06-17 Miele & Cie Verfahren zur Ermittlung der Wäschemenge in der Trommel einer Waschmaschine oder eines Trockners
DE60226075T2 (de) * 2001-11-30 2009-05-14 Arcelik A.S., Tuzla Verfahren zur bestimmung der unwucht
KR100504486B1 (ko) * 2002-12-10 2005-08-03 엘지전자 주식회사 드럼세탁기의 포량 감지방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005085511A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2565315A3 (de) * 2011-09-01 2018-01-24 Samsung Electronics Co., Ltd. Waschmaschine und Steuerungsverfahren dafür

Also Published As

Publication number Publication date
EP1738013B1 (de) 2012-01-11
ATE541076T1 (de) 2012-01-15
WO2005085511A1 (en) 2005-09-15
TR200604628T1 (tr) 2007-01-22

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