EP1029962A1 - Method for optimizing the working cycle of a dishwasher and a dishwasher using the method - Google Patents

Method for optimizing the working cycle of a dishwasher and a dishwasher using the method Download PDF

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Publication number
EP1029962A1
EP1029962A1 EP00400424A EP00400424A EP1029962A1 EP 1029962 A1 EP1029962 A1 EP 1029962A1 EP 00400424 A EP00400424 A EP 00400424A EP 00400424 A EP00400424 A EP 00400424A EP 1029962 A1 EP1029962 A1 EP 1029962A1
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European Patent Office
Prior art keywords
water
cycle
tank
rinsing
measuring
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Granted
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EP00400424A
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German (de)
French (fr)
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EP1029962B1 (en
Inventor
Benoít THOMSON-CSF Propriété Intell. Gailledrat
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Brandt Industries SAS
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Esswein SA
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    • 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
    • A47L15/42—Details
    • A47L15/4244—Water-level measuring or regulating arrangements
    • 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
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026—Rinsing phases
    • 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
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • 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
    • A47L2401/09—Water level
    • 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
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a household appliance such a dishwasher fitted with a control process for the washing bath so as to optimize the rinse cycle.
  • the invention does not seek to measure the turbidity of water in the wash and even less in the next rinse but proposes to measure the residual quantity of water at the end of washing, which beyond a certain threshold is the clear indicator that the dilution factor (detergent + micro-waste) is not sufficient to obtain a product to be washed flawless. In this case, the rinsing is automatically increased by one see several rinses.
  • the subject of the invention is a process optimizing the operating cycle of a dishwasher with a tank filled with liquid from a water intake, comprising a washing cycle, followed by a rinsing cycle characterized in that it includes a step of measuring the amount of water remaining in the tank at the end of the washing cycle, said quantity of water constituting an indicator of the dilution factor (detergent + micro-waste), so as to adapt the rinse, adjusting the number of rinses.
  • the measurement of the amount of water remaining at the bottom of the tank is a direct measurement made by height direct pressure gauge for example by an analog pressure gauge (piezoelectric Or other).
  • the step of measuring the amount of water remaining can be done differentially by volume measurement of water to bring at the start of the rinse cycle to reach a volume in the tank bottom, predetermined standard.
  • the measurement can relate to the water supply time or be performed using a flow meter to measure the additional volume of water to bring to reach a standard level.
  • the subject of the invention is also a household appliance of the type dishwasher implementing the method of the invention.
  • This device can advantageously include a filled tank in liquid from a water intake including a solenoid valve and means for closing the solenoid valve when the amount of water necessary for the operation of the wash cycle or the rinse cycle is equal to a predetermined amount of water and a cycle scheduler washing and rinsing cycle characterized in that it comprises means to measure the amount of water remaining in the tank at the end of the washing and means for controlling the programmer so as to adapt the rinse cycle by adjusting the number of rinses according to said quantity of water measured.
  • any means of precise measurement of water level which may include a pressure gauge, or even a float.
  • the means for closing the solenoid valve may be of the type pressure switch.
  • a household appliance 1 such as a dishwasher, shown schematically in Figure 1, includes a body 2, a tank 3 in which are mounted dish baskets 4, 5, reels sprinkler 6, 7 and a water level control device 10.
  • This device for regulating the water level 10 can be, in known manner, consisting of an air pressure switch whose chamber, delimited by a membrane flexible, is connected to the compression chamber, bell-shaped, arranged in the appliance bowl.
  • the diaphragm of the pressure switch which moves under the effect of pressure variations relative to the atmosphere acts on an electrical contactor which gives the level signal reached, at automation.
  • This level reached is not necessarily chosen to correspond to a sufficient volume of water available at the bottom of the tank to operate the device in normal (or nominal) fashion.
  • a variant of the invention in this case can be: provided that the detection water level is fine enough to control a volume of water precise, compatible with the operating thresholds of the present process, we can make the level reached coincide with the volume of water at the bottom of the tank just necessary, and sufficient, for the device to function properly.
  • the water level control device 10 thus provides a level well determined, necessary for safety and economic reasons of water.
  • the dishwasher also has a drain pump allowing to renew the liquid at the bottom of the tank.
  • the bottom part of the tank includes a recycling pump fitted with a guide of pumped water towards the lower watering reel and a pump » drain connected to a drainage pipe. Filters and microfilters allow the recycling of clean water to supply closed circuit reels so as to save the volume of water introduced since outside.
  • washing cycles water + detergent
  • rinsing cycles water only
  • Figure 2 shows the main steps of an example of method according to the invention.
  • the first step concerns a standard washing cycle C I.
  • the second step corresponds to an emptying operation V of the tank.
  • the third step corresponds to the first phase of the rinse cycle C R , that is to say the first operation of filling the tank with clean rinse water R 1 .
  • the quantity of water necessary Q n is measured in parallel to reach the standard quantity of water Q R to be brought into the tank in order to reach a predetermined standard level N R.
  • the rinsing cycle is followed by a drying cycle C s after a new emptying V.
  • the rinsing cycle is a standard cycle.
  • the standard rinsing cycle can be limited either to a single rinsing R 1 as illustrated in Figure 2, or to two rinsing phases R 1 and R 2 . In the latter case, the rinse R 2 will be a hot bath.
  • a second additional rinsing R i2 can be programmed.
  • the dishwasher is equipped with a sensor so as to precisely measure the volume of water to be added to the first rinsing bath after having drained the last washing bath.
  • the volumes of water corresponding to the predetermined level N R can for a dishwasher range from 1 to 6 liters
  • the threshold Q i1 can be fixed at an order of magnitude of 0.5 liters and the cumulative precision of the two measurement means must be better than half the threshold value, for example ⁇ 0.15 liter for each.
  • the information provided by the sensor directly informs the programmer who then automatically selects the optimal number of rinses.
  • the sensor can be a small flow meter deposited on the line household appliance water supply.
  • the measurement of the volume of water to be added during the first rinse to top up with water until reaching the standard level of the first rinsing bath can also be carried out thanks to a counter which provides information on the water supply time, done at a regulated flow on arrival of water. If this time is below a critical, predefined threshold, the automation of the machine triggers at least one rinse during the cycle additional.

Abstract

The procedure, for use with a dishwashing machine having a chamber filled with liquid from a water intake and in which a washing cycle is followed by a rinsing cycle, includes a stage in which the volume of water remaining in the bottom of the chamber at the end of the washing cycle is measured.

Description

La présente invention concerne un appareil électroménager tel qu'un lave-vaisselle équipé d'un procédé de contrôle du bain de lavage de manière à optimiser le cycle de rinçage.The present invention relates to a household appliance such a dishwasher fitted with a control process for the washing bath so as to optimize the rinse cycle.

De manière générale, il peut arriver qu'au cours d'un cycle de fonctionnement de ce type d'appareil, la qualité de lavage se dégrade occasionnellement et aléatoirement sans que l'utilisateur ne puisse leur attribuer une cause. C'est notamment le cas si une trop grande quantité de mousse due au produit de lavage se développe pendant le cycle de lavage. Ceci peut se produire en cas de surdosage de lessive ou si une combinaison inopportune de certaines lessives avec un certain type de résidu alimentaire se forme ; il peut s'agir par exemple de certaines lessives avec une quantité importante de jaune d'oeuf.In general, it may happen that during a cycle of operation of this type of appliance, the washing quality deteriorates occasionally and randomly without the user being able to assign a cause. This is particularly the case if too large a quantity of detergent foam develops during the wash cycle. This can happen in case of overdose of detergent or if a combination inappropriate washing of certain detergents with a certain type of food residue forms ; for example, some detergents with a quantity significant egg yolk.

Les procédés actuels de programmation du cycle de lavage et de rinçage sont basés sur la mesure d'un degré de salissure. Cette mesure peut être effectuée par turbidimètrie de l'eau en utilisant des moyens optiques, mais pour résoudre le problème précité ce type de mesure n'est pas adapté car la mousse qui se forme et qui a alors du mal à être évacuée lors de la vidange emprisonne une quantité de salissures difficile à détecter par turbidimétrie.Current procedures for programming the washing cycle and rinses are based on the measurement of a degree of soiling. This measure can be performed by turbidimetry of water using means optical, but to solve the above problem this type of measurement is not suitable because the foam which forms and which then has difficulty in being evacuated during emptying traps a quantity of dirt difficult to detect by turbidimetry.

C'est pourquoi l'invention ne cherche pas à mesurer la turbidité de l'eau au lavage et encore moins au rinçage suivant mais propose de mesurer la quantité résiduelle d'eau en fin de lavage, qui au delà d'un certain seuil constitue l'indicateur indubitable que le facteur de dilution (lessive + microdéchets) n'est pas suffisant, pour obtenir un produit à laver irréprochable. Dans ce cas, le rinçage est automatiquement augmenté d'un voir plusieurs rinçages.This is why the invention does not seek to measure the turbidity of water in the wash and even less in the next rinse but proposes to measure the residual quantity of water at the end of washing, which beyond a certain threshold is the clear indicator that the dilution factor (detergent + micro-waste) is not sufficient to obtain a product to be washed flawless. In this case, the rinsing is automatically increased by one see several rinses.

L'intérêt d'adapter le nombre de rinçages en fonction d'un paramètre de vidange plus ou moins complète en fin de cycle de lavage permet de plus d'éviter la saturation des filtres usuels de ce type d'appareil électroménager. The advantage of adapting the number of rinses according to a more or less complete drain parameter at the end of the wash cycle also avoids saturation of the usual filters of this type of device home appliance.

Plus précisément l'invention a pour objet un procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle comportant une cuve remplie en liquide à partir d'une prise d'arrivée d'eau, comprenant un cycle de lavage, suivi d'un cycle de rinçage caractérisé en ce qu'il comprend une étape de mesure de la quantité d'eau restante dans la cuve en fin de cycle de lavage, ladite quantité d'eau constituant un indicateur du facteur de dilution (lessive + microdéchets), de manière à adapter le cycle de rinçage, en réglant le nombre de rinçages.More specifically, the subject of the invention is a process optimizing the operating cycle of a dishwasher with a tank filled with liquid from a water intake, comprising a washing cycle, followed by a rinsing cycle characterized in that it includes a step of measuring the amount of water remaining in the tank at the end of the washing cycle, said quantity of water constituting an indicator of the dilution factor (detergent + micro-waste), so as to adapt the rinse, adjusting the number of rinses.

Selon une variante de l'invention, la mesure de la quantité d'eau restante en fond de cuve est une mesure directe effectuée par hauteur manométrique directe par exemple par un manomètre analogique (piézo-électrique ou autre).According to a variant of the invention, the measurement of the amount of water remaining at the bottom of the tank is a direct measurement made by height direct pressure gauge for example by an analog pressure gauge (piezoelectric Or other).

Selon une autre variante, l'étape de mesure de la quantité d'eau restante peut être effectuée de manière différentielle par mesure du volume d'eau à apporter en début de cycle de rinçage pour atteindre un volume dans le fond de cuve, prédéterminé standard.According to another variant, the step of measuring the amount of water remaining can be done differentially by volume measurement of water to bring at the start of the rinse cycle to reach a volume in the tank bottom, predetermined standard.

La mesure peut porter sur le temps d'alimentation en eau ou être effectuée à l'aide d'un débitmètre pour mesurer le volume complémentaire d'eau à apporter pour atteindre un niveau standard.The measurement can relate to the water supply time or be performed using a flow meter to measure the additional volume of water to bring to reach a standard level.

L'invention a aussi pour objet un appareil électroménager de type lave-vaisselle mettant en oeuvre le procédé de l'invention.The subject of the invention is also a household appliance of the type dishwasher implementing the method of the invention.

Cet appareil peut avantageusement comprendre une cuve remplie en liquide à partir d'une prise d'arrivée d'eau comprenant une électrovanne et des moyens pour fermer l'électrovanne lorsque la quantité d'eau nécessaire au fonctionnement du cycle de lavage ou du cycle de rinçage est égale à une quantité d'eau prédéterminée et un programmateur de cycle de lavage et de cycle de rinçage caractérisé en ce qu'il comprend des moyens pour mesurer la quantité d'eau restante dans la cuve en fin de cycle de lavage et des moyens pour commander le programmateur de manière à adapter le cycle de rinçage en réglant le nombre de rinçages en fonction de ladite quantité d'eau mesurée.This device can advantageously include a filled tank in liquid from a water intake including a solenoid valve and means for closing the solenoid valve when the amount of water necessary for the operation of the wash cycle or the rinse cycle is equal to a predetermined amount of water and a cycle scheduler washing and rinsing cycle characterized in that it comprises means to measure the amount of water remaining in the tank at the end of the washing and means for controlling the programmer so as to adapt the rinse cycle by adjusting the number of rinses according to said quantity of water measured.

Pour cela, on peut utiliser tout moyen de mesure précise de niveau d'eau, pouvant comprendre un manomètre, ou bien encore un flotteur. For this, one can use any means of precise measurement of water level, which may include a pressure gauge, or even a float.

Les moyens pour fermer l'électrovanne peuvent être de type pressostat.The means for closing the solenoid valve may be of the type pressure switch.

L'invention sera mieux comprise et d'autres avantages apparaítront à la lecture de la description qui va suivre donnée à titre non limitatif et grâce aux figures annexées parmi lesquelles :

  • la Figure 1 représente une vue schématique et partielle d'un lave-vaisselle ;
  • la Figure 2 illustre les principales étapes d'un exemple de procédé selon l'invention.
The invention will be better understood and other advantages will appear on reading the description which follows given without limitation and thanks to the appended figures among which:
  • Figure 1 shows a schematic and partial view of a dishwasher;
  • Figure 2 illustrates the main steps of an example method according to the invention.

De manière générale un appareil électroménager 1 tel qu'un lave-vaisselle, schématisé en Figure 1, comprend une carrosserie 2, une cuve 3 dans laquelle sont montés des paniers à vaisselle 4, 5, des moulinets d'arrosage 6, 7 et un dispositif de régulation de niveau d'eau 10. Ce dispositif de régulation du niveau d'eau 10 peut être, de manière connue, constitué d'un pressostat à air dont la chambre, délimitée par une membrane souple, est reliée à la chambre de compression, en cloche, disposée dans la cuve de l'appareil électroménager. La membrane du pressostat qui se déplace sous l'effet des variations de pression relative à l'atmosphère agit sur un contacteur électrique qui donne le signal de niveau atteint, à l'automatisme. Ce niveau atteint n'est d'ailleurs pas choisi nécessairement pour correspondre à un volume d'eau disponible en fond de cuve suffisant pour faire fonctionner l'appareil de façon normale (ou nominale). Une variante de l'invention, dans ce cas peut être : à condition que la détection du niveau d'eau soit suffisamment fine pour contrôler un volume d'eau précis, compatible avec les seuils de fonctionnement du présent procédé, on peut faire coïncider le niveau atteint avec le volume d'eau en fond de cuve juste nécessaire, et suffisant, à un bon fonctionnement de l'appareil. Le dispositif de régulation du niveau d'eau 10 permet ainsi d'obtenir un niveau bien déterminé, nécessaire pour des raisons de sécurité et d'économie d'eau.Generally a household appliance 1 such as a dishwasher, shown schematically in Figure 1, includes a body 2, a tank 3 in which are mounted dish baskets 4, 5, reels sprinkler 6, 7 and a water level control device 10. This device for regulating the water level 10 can be, in known manner, consisting of an air pressure switch whose chamber, delimited by a membrane flexible, is connected to the compression chamber, bell-shaped, arranged in the appliance bowl. The diaphragm of the pressure switch which moves under the effect of pressure variations relative to the atmosphere acts on an electrical contactor which gives the level signal reached, at automation. This level reached is not necessarily chosen to correspond to a sufficient volume of water available at the bottom of the tank to operate the device in normal (or nominal) fashion. A variant of the invention, in this case can be: provided that the detection water level is fine enough to control a volume of water precise, compatible with the operating thresholds of the present process, we can make the level reached coincide with the volume of water at the bottom of the tank just necessary, and sufficient, for the device to function properly. The water level control device 10 thus provides a level well determined, necessary for safety and economic reasons of water.

Le lave-vaisselle comporte par ailleurs une pompe de vidange permettant de renouveler le liquide au fond de la cuve. La partie inférieure de la cuve comporte une pompe de recyclage munie d'une canalisation de guidage d'eau refoulée vers le moulinet d'arrosage inférieur et une pompe» de vidange reliée à une conduite d'évacuation. Des filtres et microfiltres permettent de recycler de l'eau propre pour alimenter en circuit fermé les moulinets de manière à économiser le volume d'eau introduit depuis l'extérieur.The dishwasher also has a drain pump allowing to renew the liquid at the bottom of the tank. The bottom part of the tank includes a recycling pump fitted with a guide of pumped water towards the lower watering reel and a pump » drain connected to a drainage pipe. Filters and microfilters allow the recycling of clean water to supply closed circuit reels so as to save the volume of water introduced since outside.

De manière générale les cycles de lavages (eau + lessive) et les cycles de rinçage (eau seule) sont séquencés en bains par des opérations de vidange durant lesquelles seule la pompe de vidange est actionnée.Generally the washing cycles (water + detergent) and the rinsing cycles (water only) are sequenced in baths by operations during which only the drain pump is activated.

La Figure 2 schématise les principales étapes d'un exemple de procédé selon l'invention.Figure 2 shows the main steps of an example of method according to the invention.

La première étape concerne un cycle standard de lavage CI.The first step concerns a standard washing cycle C I.

La seconde étape correspond à une opération de vidange V de la cuve.The second step corresponds to an emptying operation V of the tank.

La troisième étape correspond à la première phase du cycle de rinçage CR, soit à la première opération de remplissage de la cuve en eau propre de rinçage R1. Lors de cette opération, on mesure en parallèle la quantité d'eau nécessaire Qn pour atteindre la quantité d'eau standard QR à apporter dans la cuve pour atteindre un niveau standard NR prédéterminé. La quantité Qi = QR - Qn correspond à la quantité d'eau restante dans la cuve après vidange. Si Qi est supérieure à une valeur seuil Qs1, alors le cycle de rinçage est automatiquement programmé pour un rinçage supplémentaire Ri1.The third step corresponds to the first phase of the rinse cycle C R , that is to say the first operation of filling the tank with clean rinse water R 1 . During this operation, the quantity of water necessary Q n is measured in parallel to reach the standard quantity of water Q R to be brought into the tank in order to reach a predetermined standard level N R. The quantity Q i = Q R - Q n corresponds to the quantity of water remaining in the tank after emptying. If Q i is greater than a threshold value Q s1 , then the rinsing cycle is automatically programmed for an additional rinsing R i1 .

De manière classique le cycle de rinçage est suivi par un cycle de séchage Cs après une nouvelle vidange V. Dans le cas où la quantité Qi est inférieure à la valeur seuil Qs, alors le cycle de rinçage est un cycle standard. Le cycle de rinçage standard peut être limité soit à un seul rinçage R1 comme illustré en Figure 2, soit à deux phases de rinçage R1 et R2. Dans ce dernier cas, le rinçage R2 sera un bain chaud.Conventionally, the rinsing cycle is followed by a drying cycle C s after a new emptying V. In the case where the quantity Q i is less than the threshold value Q s , then the rinsing cycle is a standard cycle. The standard rinsing cycle can be limited either to a single rinsing R 1 as illustrated in Figure 2, or to two rinsing phases R 1 and R 2 . In the latter case, the rinse R 2 will be a hot bath.

De même si Qi est supérieure à une quantité seuil Qs2 plus élevée que Qs1, un second rinçage supplémentaire Ri2 peut être programmé.Likewise if Q i is greater than a threshold quantity Q s2 higher than Q s1 , a second additional rinsing R i2 can be programmed.

Dans le cadre de l'invention, le lave-vaisselle est équipé d'un capteur de manière à mesurer précisément le volume d'eau à ajouter au premier bain de rinçage après avoir vidangé le dernier bain de lavage. Typiquement, les volumes d'eau correspondant au niveau NR préétabli peuvent pour un lave-vaisselle s'échelonner de 1 à 6 litres, le seuil Qi1 peut être fixé à un ordre de grandeur de 0,5 litre et la précision cumulée des deux moyens de mesure doit être meilleure que la moitié de la valeur du seuil, soit par exemple ± 0,15 litre pour chaque.In the context of the invention, the dishwasher is equipped with a sensor so as to precisely measure the volume of water to be added to the first rinsing bath after having drained the last washing bath. Typically, the volumes of water corresponding to the predetermined level N R can for a dishwasher range from 1 to 6 liters, the threshold Q i1 can be fixed at an order of magnitude of 0.5 liters and the cumulative precision of the two measurement means must be better than half the threshold value, for example ± 0.15 liter for each.

L'information fournie par le capteur renseigne directement le programmateur qui sélectionne alors automatiquement le nombre optimal de rinçages. Le capteur peut être un petit débimètre déposé sur la ligne d'alimentation en eau de l'appareil ménager.The information provided by the sensor directly informs the programmer who then automatically selects the optimal number of rinses. The sensor can be a small flow meter deposited on the line household appliance water supply.

La mesure du volume d'eau à ajouter lors du premier rinçage pour compléter la quantité d'eau jusqu'à atteindre le niveau standard du premier bain de rinçage peut être effectuée également grâce à un compteur qui renseigne sur le temps d'alimentation en eau, fait à débit régulé en arrivée d'eau. Si ce temps est inférieur à un seuil critique, prédéfini, l'automatisme de la machine déclenche dans le cours du cycle au moins un rinçage supplémentaire.The measurement of the volume of water to be added during the first rinse to top up with water until reaching the standard level of the first rinsing bath can also be carried out thanks to a counter which provides information on the water supply time, done at a regulated flow on arrival of water. If this time is below a critical, predefined threshold, the automation of the machine triggers at least one rinse during the cycle additional.

Claims (8)

Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle comportant une cuve remplie en liquide à partir d'une prise d'arrivée d'eau, comprenant un cycle de lavage, suivi d'un cycle de rinçage caractérisé en ce qu'il comprend une étape de mesure de la quantité d'eau restante dans la cuve en fin de cycle de lavage, ladite quantité d'eau constituant un indicateur du facteur de dilution (lessive + microdéchets), de manière à adapter le cycle de rinçage, en réglant le nombre de rinçages.Method for optimizing the operating cycle of a dishwasher comprising a tank filled with liquid from a socket water inlet, including a wash cycle, followed by a rinse cycle characterized in that it includes a step of measuring the amount of water remaining in the tank at the end of the washing cycle, said quantity of water constituting an indicator of the dilution factor (detergent + micro-waste), in order to adapt the rinse cycle, by adjusting the number of rinses. Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle selon la revendication 1 caractérisé en ce que l'étape de mesure de la quantité d'eau restante est effectuée de manière différentielle par mesure du volume d'eau à apporter en début de cycle de rinçage pour atteindre un volume prédéterminé standard en fond de cuve.Method for optimizing the operating cycle of a dishwasher according to claim 1 characterized in that the step of measurement of the amount of remaining water is carried out in a differential manner by measuring the volume of water to be supplied at the start of the rinsing cycle to reach a standard predetermined volume at the bottom of the tank. Procédé d'optimisation du cycle de fonctionnement d'un lave-vaisselle selon la revendication 2, caractérisé en ce que l'étape de mesure différentielle est effectuée en présence d'un pressostat qui mesure une hauteur manométrique d'eau.Method for optimizing the operating cycle of a dishwasher according to claim 2, characterized in that the step of differential measurement is carried out in the presence of a pressure switch which measures a water head. Lave-vaisselle comprenant une cuve remplie en liquide à partir d'une prise d'arrivée d'eau comprenant une électrovanne et des moyens pour fermer l'électrovanne lorsque la quantité d'eau nécessaire au fonctionnement du cycle de lavage ou du cycle de rinçage est égale à une quantité d'eau prédéterminée et un programmateur de cycle de lavage et de cycle de rinçage caractérisé en ce qu'il comprend des moyens pour mesurer la quantité d'eau restante dans la cuve en fin de cycle de lavage et des moyens pour commander le programmateur de manière à adapter le cycle de rinçage en réglant le nombre de rinçages en fonction de ladite quantité d'eau mesurée. Dishwasher including a tank filled with liquid from a water intake including a solenoid valve and means to close the solenoid valve when the amount of water required for washing or rinsing cycle operation is equal to one predetermined amount of water and a wash cycle and rinsing cycle characterized in that it comprises means for measuring the quantity of water remaining in the tank at the end of the washing cycle and means for controlling the programmer so as to adapt the cycle of rinsing by adjusting the number of rinses according to said quantity of measured water. Lave-vaisselle selon la revendication 4, caractérisé en ce que les moyens pour fermer l'électrovanne comprennent un pressostat.Dishwasher according to claim 4, characterized in that the means for closing the solenoid valve include a pressure switch. Lave-vaisselle selon l'une des revendications 4 ou 5, caractérisé en ce que les moyens pour mesurer la quantité d'eau restante dans la cuve en fin de lavage comprennent des moyens de type manomètre analogique.Dishwasher according to one of claims 4 or 5, characterized in that the means for measuring the amount of water remaining in the tank at the end of washing include manometer type means analog. Lave-vaisselle selon l'une des revendications 4 ou 5, caractérisé en ce que les moyens pour mesurer la quantité d'eau restante dans la cuve en fin de lavage comprennent des moyens pour mesurer le temps d'alimentation en eau de la cuve lors du premier bain du cycle de rinçage.Dishwasher according to one of claims 4 or 5, characterized in that the means for measuring the amount of water remaining in the tank at the end of washing include means for measuring the tank water supply time during the first bath of the rinsing. Lave-vaisselle selon l'une des revendications 4 ou 5, caractérisé en ce que les moyens pour mesurer la quantité d'eau restante dans la cuve en fin de lavage comprennent un capteur débimétrique pour mesurer le volume complémentaire d'eau à amener pour compléter le volume de fond de cuve à un niveau prédéterminé (NR), lors du premier bain du cycle de rinçageDishwasher according to one of claims 4 or 5, characterized in that the means for measuring the quantity of water remaining in the tank at the end of washing include a flow sensor to measure the additional volume of water to be brought in to complete the tank bottom volume at a predetermined level (N R ), during the first bath of the rinsing cycle
EP00400424A 1999-02-16 2000-02-15 Method for optimizing the working cycle of a dishwasher and a dishwasher using the method Expired - Lifetime EP1029962B1 (en)

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FR9901860A FR2789568B1 (en) 1999-02-16 1999-02-16 METHOD FOR OPTIMIZING THE OPERATING CYCLE OF A WASHING HOUSEHOLD APPLIANCE AND APPARATUS USING THE SAME
FR9901860 1999-02-16

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EP1029962A1 true EP1029962A1 (en) 2000-08-23
EP1029962B1 EP1029962B1 (en) 2005-08-17

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WO2004056255A1 (en) * 2002-12-19 2004-07-08 BSH Bosch und Siemens Hausgeräte GmbH Washing method for a dishwasher, and dishwasher
EP1438920A2 (en) * 2002-11-14 2004-07-21 Whirlpool Corporation Method of operating a dishwasher with a central control unit
EP1457152A2 (en) * 2002-11-14 2004-09-15 Whirlpool Corporation Method of operating a dishwasher with a central control unit by measuring the turbidity

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CN114145686B (en) * 2021-11-22 2023-09-12 珠海格力电器股份有限公司 Washing control method and device and dish washing machine

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EP1188409A2 (en) * 2000-09-13 2002-03-20 Whirlpool Corporation Method to supply clear rinse in a dishwasher
EP1188409A3 (en) * 2000-09-13 2003-04-02 Whirlpool Corporation Method to supply clear rinse in a dishwasher
EP1438920A2 (en) * 2002-11-14 2004-07-21 Whirlpool Corporation Method of operating a dishwasher with a central control unit
EP1457152A2 (en) * 2002-11-14 2004-09-15 Whirlpool Corporation Method of operating a dishwasher with a central control unit by measuring the turbidity
EP1457152A3 (en) * 2002-11-14 2005-06-29 Whirlpool Corporation Method of operating a dishwasher with a central control unit by measuring the turbidity
EP1438920A3 (en) * 2002-11-14 2005-06-29 Whirlpool Corporation Method of operating a dishwasher with a central control unit
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WO2004056255A1 (en) * 2002-12-19 2004-07-08 BSH Bosch und Siemens Hausgeräte GmbH Washing method for a dishwasher, and dishwasher

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ES2245926T3 (en) 2006-02-01
DE60021930D1 (en) 2005-09-22
FR2789568B1 (en) 2001-05-04
EP1029962B1 (en) 2005-08-17
FR2789568A1 (en) 2000-08-18

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