WO2002062195A1 - Procede d'estimation, de calcul et d'affichage de la duree restante d'un programme de lave-vaisselle - Google Patents

Procede d'estimation, de calcul et d'affichage de la duree restante d'un programme de lave-vaisselle Download PDF

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Publication number
WO2002062195A1
WO2002062195A1 PCT/TR2001/000008 TR0100008W WO02062195A1 WO 2002062195 A1 WO2002062195 A1 WO 2002062195A1 TR 0100008 W TR0100008 W TR 0100008W WO 02062195 A1 WO02062195 A1 WO 02062195A1
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WO
WIPO (PCT)
Prior art keywords
duration
heating
wash
main
phase
Prior art date
Application number
PCT/TR2001/000008
Other languages
English (en)
Inventor
Cem Bastuji
Original Assignee
Arçelik A.S.
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 Arçelik A.S. filed Critical Arçelik A.S.
Priority to PCT/TR2001/000008 priority Critical patent/WO2002062195A1/fr
Publication of WO2002062195A1 publication Critical patent/WO2002062195A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/20—Time, e.g. elapsed operating time
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • A47L2501/265—Indication or alarm to the controlling device or to the user about the number of remaining operation cycles or the remaining operation time

Definitions

  • the present invention relates to a method for estimating, computing and displaying the remaining program duration in a dishwasher.
  • washing program For operating a dishwasher, one sets a washing program for the objects to be washed.
  • the washing program is chosen according to the condition of the items to be washed. For informative purposes, the duration of a washing program and the remaining program duration is displayed and continuously modified on the control panel of the dishwasher. But the duration of a washing program is not known a priori.
  • Each washing program may comprise the phases of pre-wash, main-wash, intermediate rinsing, final rinsing and drying. The duration of some of the phases cannot be determined in advance.
  • the duration of heating the washing liquid depends on the temperature of the incoming water, amount and type of items to be washed. Therefore, while displaying the program duration and remaining program duration, an estimate of the actual program time is displayed. For computing this estimate there are various methods in prior art.
  • the object of this invention is to provide a method for estimating, computing and displaying the remaining program duration in a dishwasher. DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 Schematic view of a dishwasher
  • Figure 2 A chart showing a program flow.
  • the components shown in the drawings have been enumerated individually, as follows;
  • the dishwasher in which the method is used mainly comprises a washing tank (1) provided on the bottom with a sump (2) for collecting the water.
  • Said washing tank (1) houses one or more rotating spray arms (3) connected to a circulation pump (5) which is adapted to supply water to said rotating spray arms (3) so as to enable them to spray onto the wash load items, the water that then falls by gravity back onto the bottom of the washing tank (1), where it collects in the sump (2).
  • a heater (7) is housed inside the washing tank (1), below the lower rotating spray arm (3). The heater (7) is used for heating the water and the wash load items.
  • a drain pump (6) connects the bottom of the sump (2), to a drain pipe (8).
  • the dishwasher further comprises a water supply circuit (9) adapted to let water from the mains into the washing tank (1) through a water inlet valve (10) controlled by a control unit (12) which includes a memory unit (13) for storing the related data.
  • the control unit (12) is adapted to control the operation of all of the main functional members, such as pumps, motors, heaters etc. of the apparatus.
  • the dishwasher is adapted to carry out certain washing programs.
  • Each washing program constitutes an operating cycle of the dishwashing machine.
  • An operating cycle comprises in a sequence, a pre-wash phase (with either cold or hot water mixed with detergent, said phase being anyway excludable from the cycle), a main wash phase with hot water mixed with detergent, at least an intermediate rinse phase with cold water, and a final rinse phase with hot water mixed with some rinse aid or similar product, followed by a wash load drying phase.
  • the water contained in the sump (2) is sent to the drain pipe (8) by the drain pump (6).
  • the operating cycles are designed by the producer according to the needs of the users and may differ in number of phases included.
  • the remaining duration of an operating cycle is displayed by the control unit (12) at the display means (4).
  • Each washing program has different duration.
  • a total duration (t tot ) of the operating cycle is displayed and the total duration (t to t) is decreased by the control unit (12) as time progresses.
  • the total duration (t to t) of an operating cycle can be computed by adding the individual duration of the pre-wash (t pw ), the main-wash (t mw ), the intermediate rinse (tj r ), the final rinse (t&) and the drying (td) phases.
  • the duration of the pre-wash (t pw ) and the intermediate rinse (tj r ) phases are determined by the producer and these values are constant and are kept in the memory unit (13) of the control unit (12).
  • duration of the main- wash (t mw ), the final rinse (t & ) and the drying (t ) phases differ from an operating cycle to another.
  • Duration of the main wash (t m ), and final rinse (ta) phases depends on how fast the water is heated, whereas the duration of the drying phase (td) depends on how fast the wash load items cool down. Heating rate of water and cooling rate of wash load items are related to the inlet water temperature, amount and type of items loaded, user preferences and environmental conditions, i.e.
  • the method of current invention initially computes the estimates of heating up duration in the main-wash phase (t mw . h ), heating up duration in the final rinse phase (t fr - h ) and the drying duration (td) using the experimentally determined values by the producer. These values are kept in the memory unit (13). Then, during each operation cycle, values of water inlet temperature (T w ), selected washing program, actual values of the heating up duration in the main-wash phase (t mw . h ), the heating up duration in the final rinse phase (t&. h ) and the drying duration (td) are kept in the memory unit (13).
  • a temperature for the main wash (T mw -set) and a temperature for the final rinse phase (Tfr. se t) are set and this information is combined with the inlet water temperature (T w ;) that is measured by the temperature sensor (14).
  • T w i the inlet water temperature
  • the corresponding values in the memory unit (13) are taken and used as initial estimates of heating up duration in the main-wash phase (t mw . h ), heating up duration in the final rinse phase (t&. h ) and the drying duration (t d ).
  • estimates of the main-wash duration (t mw ) and the final rinse duration ( ) are computed using the values for heating up duration in the main-wash phase (t mw . h ) and heating up duration in the final rinse phase (t&-h).
  • Adding the predetermined duration of pre-wash (t pw ) and intermediate rinse (tjr) phases that are kept in the memory unit (13) with the estimates of the main-wash duration (t mw ), the final rinse duration (t & ) and the drying duration (td) results in a first estimate of the total operation cycle duration f_est(t tot ). This estimate is displayed at the display means (4).
  • heating up duration in the final rinse phase (t&_.h) and the drying duration (t d ) that are kept in the memory unit (13) are used.
  • the estimate of the drying duration (t d ) depends on the set temperature for the final rinse phase (T f r. set ), the rate of change of temperature ( ⁇ T) and predetermined drying stoppage temperature (Td).
  • Estimates of the main- wash duration (t mw ) and the final rinse duration (t & ) are computed using the values for heating up duration in the main-wash phase (t mw .h) and heating up duration in the final rinse phase (t f r_ h ).
  • a second estimate of the total operation cycle duration s_est(t tot ) is computed by adding the predetermined duration of intermediate rinse (t lr ) that is kept in the memory unit (13) with the estimates of the main-wash duration (t mw ), the final rinse duration (t&) and the drying duration (t ) and displayed by the control unit (12). Then the displayed duration is modified by the control unit (12) as time progresses.
  • heating up duration in the final rinse phase (t ⁇ .h) and the drying duration (t d ) replace the experimentally determined values which are kept in the memory unit (13) and are used for computing the first and second estimates of the total operation cycle duration f_est(t tot ).
  • a temperature for the main wash (T mw . set ) and a temperature for the final rinse phase (Tfrand set ) are set for the dishwasher, this information is combined with the inlet water temperature (T W j) measured by the temperature sensor (14).
  • T W j inlet water temperature measured by the temperature sensor (14).
  • Estimates of the main-wash duration (t mw ) and the final rinse duration (t & ) are computed using the values for heating up duration in the main-wash phase (t mw .h) and heating up duration in the final rinse phase (tfr. h ). Then a second estimate of the total operation cycle duration s_est(t t0t ) is computed by adding the predetermined duration of intermediate rinse (ti r ) that is kept in the memory unit (13) with the estimates of the main- wash duration (t mw ), the final rinse duration (t & ) and the drying duration (t d ) and displayed by the control unit (12). Then the displayed duration is modified by the control unit (12) as time progresses.
  • the dishwasher further comprises a door sensor (11).
  • the door sensor (11) sends the door open signal to the control unit (12).
  • the control unit (12) may skip or add one or more water intake steps in the main-wash according to the level of turbidity of the washing liquid. In this case, since the duration of the water intake step is known, the total program duration (t ot ) is displayed accordingly.
  • the method of the current invention by using the first and the second estimates of the total operation cycle duration, minimises the discrepancy that may occur between the displayed and actual program duration at the end of the operation cycle. Also the method of the current invention, with the use of actual values of the heating up duration in the main-wash phase ( -i and the heating up duration in the final rinse phase (t f r- h ), gives a more accurate estimate depending on the environmental conditions.

Abstract

L'invention porte sur un procédé d'estimation, de calcul et d'affichage de la durée restante d'un programme de lave-vaisselle. Le procédé consiste à calculer une première estimation de la durée totale du cycle de lavage f-est(ttot) et l'afficher, modifier la durée affichée au fur et à mesure du déroulement du cycle, calculer une seconde estimation de la durée totale du cycle de lavage s-est(ttot) et l'afficher, modifier la durée affichée au fur et à mesure du déroulement du cycle, corriger la durée affichée s'il y a une différence entre la durée réelle du programme et la durée affichée et indiquer la fin du cycle de lavage à l'arrêt du lave-vaisselle.
PCT/TR2001/000008 2001-02-08 2001-02-08 Procede d'estimation, de calcul et d'affichage de la duree restante d'un programme de lave-vaisselle WO2002062195A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2001/000008 WO2002062195A1 (fr) 2001-02-08 2001-02-08 Procede d'estimation, de calcul et d'affichage de la duree restante d'un programme de lave-vaisselle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2001/000008 WO2002062195A1 (fr) 2001-02-08 2001-02-08 Procede d'estimation, de calcul et d'affichage de la duree restante d'un programme de lave-vaisselle

Publications (1)

Publication Number Publication Date
WO2002062195A1 true WO2002062195A1 (fr) 2002-08-15

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Application Number Title Priority Date Filing Date
PCT/TR2001/000008 WO2002062195A1 (fr) 2001-02-08 2001-02-08 Procede d'estimation, de calcul et d'affichage de la duree restante d'un programme de lave-vaisselle

Country Status (1)

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WO (1) WO2002062195A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083579A1 (fr) * 2007-12-31 2009-07-09 Arcelik Anonim Sirketi Lave-vaisselle
CN113818201A (zh) * 2020-06-18 2021-12-21 云米互联科技(广东)有限公司 洗涤装置的时间指示方法及系统、存储介质、洗涤装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416970A1 (fr) * 1978-02-14 1979-09-07 Bauknecht Gmbh G Dispositif de commande a programme
GB1603827A (en) * 1977-05-23 1981-12-02 Domestic Appliances Ltd Washing machines
DE3715956A1 (de) * 1987-05-13 1988-12-01 Bosch Siemens Hausgeraete Verfahren zum ueberwachen des programmablaufes von geschirrspuel- oder waschmaschinen
US5723847A (en) * 1995-08-07 1998-03-03 Bosch-Siemens Hausgeraete Gmbh Method for determining and displaying the remaining time in a treatment program in a household appliance and electronic control unit for performing the method
DE19902812A1 (de) * 1999-01-25 2000-07-27 Bsh Bosch Siemens Hausgeraete Verfahren und Anordnung zur Überwachung des Programmablaufs einer programmgesteuerten Geschirrspülmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1603827A (en) * 1977-05-23 1981-12-02 Domestic Appliances Ltd Washing machines
FR2416970A1 (fr) * 1978-02-14 1979-09-07 Bauknecht Gmbh G Dispositif de commande a programme
DE3715956A1 (de) * 1987-05-13 1988-12-01 Bosch Siemens Hausgeraete Verfahren zum ueberwachen des programmablaufes von geschirrspuel- oder waschmaschinen
US5723847A (en) * 1995-08-07 1998-03-03 Bosch-Siemens Hausgeraete Gmbh Method for determining and displaying the remaining time in a treatment program in a household appliance and electronic control unit for performing the method
DE19902812A1 (de) * 1999-01-25 2000-07-27 Bsh Bosch Siemens Hausgeraete Verfahren und Anordnung zur Überwachung des Programmablaufs einer programmgesteuerten Geschirrspülmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083579A1 (fr) * 2007-12-31 2009-07-09 Arcelik Anonim Sirketi Lave-vaisselle
CN113818201A (zh) * 2020-06-18 2021-12-21 云米互联科技(广东)有限公司 洗涤装置的时间指示方法及系统、存储介质、洗涤装置
CN113818201B (zh) * 2020-06-18 2023-06-13 云米互联科技(广东)有限公司 洗涤装置的时间指示方法及系统、存储介质、洗涤装置

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