WO2016146321A1 - Procédé pour faire fonctionner un lave-linge comprenant un capteur d'impédance et lave-linge pour la mise en oeuvre de ce procédé - Google Patents

Procédé pour faire fonctionner un lave-linge comprenant un capteur d'impédance et lave-linge pour la mise en oeuvre de ce procédé Download PDF

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Publication number
WO2016146321A1
WO2016146321A1 PCT/EP2016/053135 EP2016053135W WO2016146321A1 WO 2016146321 A1 WO2016146321 A1 WO 2016146321A1 EP 2016053135 W EP2016053135 W EP 2016053135W WO 2016146321 A1 WO2016146321 A1 WO 2016146321A1
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WO
WIPO (PCT)
Prior art keywords
surfactant
impedance
concentration
nsid
aqueous liquid
Prior art date
Application number
PCT/EP2016/053135
Other languages
German (de)
English (en)
Inventor
Dirk Aurich
Andreas Bischof
Michael Munick
Hartmut Schaub
Original Assignee
BSH Hausgeräte GmbH
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 BSH Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Priority to CN201680015574.3A priority Critical patent/CN107429462B/zh
Priority to EP16704247.2A priority patent/EP3268528B1/fr
Publication of WO2016146321A1 publication Critical patent/WO2016146321A1/fr

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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
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of 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
    • D06F2103/18—Washing liquid 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
    • D06F2103/20—Washing liquid condition, e.g. turbidity
    • D06F2103/22—Content of detergent or additives
    • 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
    • D06F2105/42—Detergent or additive supply

Definitions

  • the invention relates to a method for operating a washing machine with an impedance sensor (also referred to as electrochemical impedance sensor) and a washing machine suitable for this purpose.
  • the invention relates to a method for operating a washing machine with a container, a drum for receiving laundry, a drive motor for the drum, an impedance sensor in the container for determining an impedance signal in dependence on a composition of an aqueous liquid in the container, and a control device, and a washing machine suitable for carrying out this method.
  • laundry In a washing machine, laundry is generally treated in a washing phase for cleaning with a detergent containing wash liquor.
  • a treatment of the laundry with a fabric softener is frequently carried out.
  • laundry treatment agent in particular laundry detergent and softener. An overdose but also an underdose should be avoided.
  • an incorrect dosage of the detergent can lead to effervescence (overdosing) or to a poor washing performance (underdosing). It is therefore desirable to have a method of operating a washing machine that recognizes such conditions so that appropriate countermeasures can be taken.
  • washing machine which has an optimum amount of e.g. Detect detergent and a user of the washing machine on a display display a dosage recommendation with a precise indication of an amount to be used, for example. Can give detergent.
  • WO 03/029550 A1 describes a process-controlled domestic appliance with a microcomputer and a display for texts, in which a display panel for the Display of the expected in a work process (eg a wash program) required amount of additives (eg detergent) is present.
  • the household appliance has a device by means of which, for example, a washing process additive can be supplied, the dosage must be made by an operator.
  • a detergent dosage optimally adapted to a lot of items of laundry leads, in addition to a saving of energy and water, in particular also to a lower load on the wastewater.
  • DE 29 17 859 describes a method for monitoring and controlling the program, in particular the water inlet and / or the cleaning or detergent addition in automatic washing machines and dishwashers, wherein the surface tension and / or the water hardness and / or the electrical conductivity of the Washing liquid responsive sensors are provided in the machine, which intervene via an electrical control circuit in the program flow and control the amount of water, the water change and / or the dosage of cleaning or detergent addition.
  • EP 0 797 761 B1 describes a method for determining the surface tension of a liquid by generating gas bubbles in the liquid, whereafter the surface tension in the liquid is determined by monitoring gas bubbles and wherein the gas bubbles are formed from gas generated in situ.
  • EP 2 533 035 A1 describes a device for detecting material properties of a medium, comprising a measuring device including a sensor device, which is in communication with the medium, and a control device for controlling the sensor device with signals of a predetermined frequency range, and a control device for controlling the Operation of the measuring device and specification of the predetermined frequency range, wherein the driving means is provided for determining the course of the impedance Z of the medium corresponding to the predetermined frequency range in dependence on the frequency, and for outputting a detection signal, and the control means is provided for evaluating the detection signal of the drive means, determining a plurality of characteristic points (P1 to P4) of the course of the impedance Z and generating a result signal with respect to the properties of the medium. It should thus be possible, for example, to determine whether a wash solution requires a further addition of wax.
  • Detergents contain surfactants as surface-active substances to form a wash liquor for cleaning laundry items, these reducing the surface tension of the water in the aqueous solution formed (wash liquor), since the surfactants preferentially adsorb to the surface and thus to an interface.
  • surfactants from a certain concentration in the wash liquor store in the form of micelles, since they are energetically favorable. This concentration is called critical micelle concentration (CCMC) -
  • EP 2 767 825 A1 describes a method and an apparatus for determining a micelle formation concentration. The process is carried out in a washing device which has a quantity of water required for carrying out a washing process, with the steps
  • step 2 Detecting an amount Z and a phase angle ⁇ of an impedance of the wash liquor for a predetermined number of frequencies of drive signals and generating a corresponding number of respective measured values (step 2),
  • the object of the present invention was to provide a method for operating a washing machine, which is improved with regard to the optimal use of detergents.
  • the method should preferably allow the simplest possible and / or accurate monitoring and control of a wash program.
  • the object of the invention is also to provide a suitable for carrying out this method washing machine.
  • the invention thus relates to a method for operating a washing machine with a container, a drum for receiving items of laundry, a drive motor for the drum, an electrochemical impedance sensor in the container for determining an impedance signal in dependence on a composition of an aqueous liquid in the container, and a control device in which the following steps are performed:
  • step (b) measuring the surfactant concentration c Te nsid in the surfactant-containing aqueous liquid provided in step (a) by recording and evaluating impedance signals of the impedance sensor using a relationship between the impedance signals and the surfactant concentration stored in the controller;
  • CTensid ⁇ Cgrenz satisfies ISt
  • c gre nz means a maximum permissible micelle concentration. Their value generally depends on the movement program of the drum provided for the washing phase and the type or composition of the detergent, in particular the surfactants contained in it. The default of c gre nz serves, for example, to avoid unwanted foaming.
  • the maximum permissible micelle concentration C limit can be defined as an absolute value or as a ratio to the critical micelle concentration C C MC.
  • a container is understood to be a suds container, a part of the container or a component in which the surfactant-containing liquid provided during operation of the washing machine is located or flows past.
  • the impedance sensor in the tub of a washing machine as well as in a measuring container which is communicatively connected to the tub, or in a liquid line through which the surfactant-containing liquid flows during operation of the washing machine may be arranged.
  • the latter could be particularly advantageous if the washing machine has a pumping system, which dissipates the surfactant-containing liquid during operation of the washing machine from a tub and feeds again.
  • the surfactant-containing aqueous liquid is provided with a surfactant concentration Crensid in such a way that the relationship C C MC c c Te nsid ⁇ c gre nz is satisfied, characterized in that the surfactant concentration c Te nsid in the surfactant-containing aqueous liquid in step (a) by recording and evaluation of impedance signals of the impedance sensor, ie the impedance signals measured by the impedance sensor, is tracked, wherein the deposited in the control device relationship between impedance signals and surfactant concentrations is used.
  • the surfactant-containing aqueous liquid is preferably provided in such a way that the surfactant concentration in the surfactant-containing aqueous liquid is increased continuously until the critical micelle concentration C C MC is reached, the measured impedance signals being evaluated with respect to a change in the surface tension o sur in order to determine one no longer increasing with increasing surfactant surface tension o sur determine that the critical micelle concentration C C MC is reached.
  • the surfactant concentration can be continuously increased.
  • surfactant means a single surfactant as well as a mixture of different surfactants.
  • step (a) it is preferable to carry out step (a) in a wetting phase.
  • Wetting phase is understood to mean the phase in a washing program in which items of laundry to be cleaned and in particular to be washed with wash liquor are wetted with a wash liquor to be used, generally up to a saturation of the laundry items with the wash liquor.
  • wash liquor and " surfactant-containing aqueous liquor " have the same meaning in general.
  • a laundry drum in a wetting phase is preferably not rotated at a speed greater than 25 revolutions per minute.
  • step (b) is carried out taking into account the type and / or amount of soiling of the items of laundry, wherein in the control means a correlation between the impedance signals and the surfactant concentrations for different types and / or amounts of soiling of the items is deposited.
  • contamination with oil would mean that, in particular, nonionic surfactants can dissolve more or less pronouncedly in the oil and are no longer available for micelle formation.
  • ionic surfactants can be trapped to some extent by ion-containing contaminants, i. be consumed so that they are no longer available for a micelle formation.
  • Type and / or amount of contamination can be set by a user of the washing machine or measured by suitable sensors.
  • the inventively provided impedance sensor is suitable for this purpose.
  • other sensors such as a turbidity sensor can also be used.
  • step (c2) with a determined surfactant concentration c Te nsi d ⁇ C C MC is that a duration of the washing phase is greater and / or the input of kinetic energy is greater than in a washing phase in which the surfactant concentration c Te nsid the relationship C C MC ⁇ c Te nsid ⁇ c gre nz met.
  • the recording and evaluation of the impedance signals is generally carried out by the electrical impedance of the impedance sensor being subjected to varying frequencies and the impedance signals being evaluated with respect to the phase angle ⁇ and the magnitude of the impedance. Phase angle ⁇ and the amount of impedance can then turn be evaluated in terms of the type, amount and concentration of surfactants and beyond of micelle concentrations.
  • an impedance spectrum is generally recorded using a suitable electrode system as the impedance sensor.
  • the impedance of an electrochemical system is investigated as a function of the frequency of an alternating voltage.
  • various representations are known to those skilled in the art, such as the Nyquist representation, in which the real part or the imaginary part of the impedance is represented as a function of the applied AC voltage frequency.
  • the Nyquist representation in which the real part or the imaginary part of the impedance is represented as a function of the applied AC voltage frequency.
  • a few characteristic points are generally suitable when examining wash liquors, for example at the maximum of the imaginary part in a lower frequency range or at the minimum of the imaginary part in an upper frequency range.
  • typical parameters for a wash liquor can generally be derived.
  • the conductivity of the wash liquor can be determined from the real part of a point.
  • the capacitance of the so-called conductivity measuring cell formed by the impedance sensor and the wash liquor is determined.
  • Another measure, which depends on the properties of the wash liquor, is the flattening of a semicircle in the Nyquist representation, which can be determined by the ratio of height to width of the semicircle. The evaluation is done using formulas known to those skilled in the art.
  • the impedance signals are evaluated in terms of electrical conductivity as a measure of a water hardness.
  • a method according to the invention is preferred in which, in step (a), the provision of a surfactant-containing aqueous liquid in the container is introduced into the container dependent on a loading amount with items of laundry and a filled amount of water amount of surfactant.
  • the determination of the amount of loading can be made by measuring the weight gain of the drum due to the loading of laundry or by analyzing the absorbency of water by analyzing the change in hydrostatic pressure during addition of water to dry laundry.
  • a hydrostatic sensor is advantageously present in a washing machine according to the invention.
  • a water meter ie a measuring device for determining the amount of water charged, or the amount of charged wash liquor available.
  • the hydrostatic pressure p measured with the aid of the hydrostatic sensor can be compared with the filled-in amount of water.
  • the laundry in the drum absorbs water.
  • the absorbed water can not contribute to an increase of the hydrostatic pressure.
  • a wash phase generally follows a wetting phase. If a washing program is signaled that sufficient wetting of the laundry is given, for example, by reaching a predetermined threshold p-1 for the hydrostatic pressure p and a predetermined threshold value ( ⁇ / ⁇ ) for the time gradient of the hydrostatic pressure p, generally starts the washing phase.
  • the impedance signals are evaluated with regard to the composition of a detergent, in particular the surfactants contained in it, wherein in the control device for various components and amounts of a detergent impedance signals are stored. This may be an evaluation in terms of the type and the proportionate amounts of the components contained in the detergent, for example, proportion of nonionic and ionic surfactants, proportion of bleach and / or enzymes.
  • the amount of detergent to be used can be better adapted to a laundry item to be washed in the drum.
  • an impedance sensor may be disposed in an induction bowl, or at another location in the washing machine where possible contaminants have little or no influence on such analysis.
  • a respective maximum surfactant concentration c max and / or maximum permissible micelle concentration c gre nz is stored in the control device for certain rotational speeds of the drum to avoid disturbing foam generation in the washing machine.
  • the surfactant concentration generally ranges from the simple to five times the critical micelle concentration, more preferably from the single to the double critical micelle concentration.
  • a method is also preferred in which a dilution of the surfactant-containing aqueous liquid is carried out in step (c1) at a determined surfactant concentration c Te nsid ⁇ c gre nz such that (i) a predetermined amount M- ⁇ of the surfactant-containing aqueous liquid (ii) adding a predetermined amount of water to M 2 from the water supply, and (iii) thereafter measuring and evaluating an impedance signal with respect to the surfactant concentration present, steps (i) to (iii) be carried out until the condition C C MC ⁇ c Te nsid ⁇ c gre nz is met.
  • the invention also relates to a washing machine with a container, a drum for receiving laundry, a drive motor for the drum, an impedance sensor in the container for determining an impedance signal in dependence on a composition of an aqueous liquid in the container, and a control device, wherein the control device is arranged to carry out a method comprising the following steps:
  • step (B) Measurement of the surfactant concentration c Te nsid in the surfactant-containing aqueous liquid provided in step (a) by recording and evaluation of impedance signals of the impedance sensor using a in the Controllers deposited the relationship between the impedance signals and the surfactant concentrations;
  • CTensid ⁇ Cg re nz satisfies ISt
  • a washing machine is preferred in which a temperature sensor is arranged in the container and a relationship between impedance signals and surfactant concentrations is stored in the control device for various temperature values measured with the temperature sensor.
  • the washing machine according to the invention makes it possible to dispense with the turbidity sensor often present in a washing machine.
  • embodiments of the washing machine according to the invention may also be supplemented by a turbidity sensor.
  • a washing machine used herein generally also has a heater and a liquor drain system with a drain pump located at the bottom of a tub.
  • a washing machine used herein also generally includes laundry drippers and / or scooping devices.
  • the washing machine according to the invention may be a washing machine as such or a washer-dryer, ie a device which has the functions of a dryer and a washing machine.
  • the washing machine according to the invention preferably has an acoustic and / or optical display means for displaying one or more operating states.
  • An optical display means may be, for example, a liquid crystal display on which certain prompts or hints are given. It can also or Alternatively, light emitting diodes in one or more colors light up. For example, it can be displayed on the basis of differently colored representations whether a washing phase takes place at an optimum detergent concentration or not.
  • an underdosage of detergent especially in the presence of the condition of a detected surfactant concentration c Te nsi d ⁇ C C MC > can be given to a user of the washing machine an indication to replenish detergent, in which case also a quantity can be specified.
  • the dosage recommendation is displayed on the display as such or a display field thereof (collectively referred to herein as a "display").
  • the dosage recommendation can be displayed on the display in the form of a text and / or a sign.
  • An appropriate text would be, for example, the direct prompt "please dose” green "", where "green” is an indication of a dispensing aid, other colors may be mentioned or other indications may be given in textual form a color or a symbol may be displayed, for example a circle which may be filled to differentiate individual detergent quantities to different extents
  • a method according to the invention as described under method step (c2) is continued, in which case the reaction of the user is, in particular, the triggering of a flushing in of detergent.
  • the knowledge of the amount of water flowing into the container or water liquor is important.
  • a measuring device for determining the filled amount of water is present, for example, a timing device for determining the opening period of a feed valve for the water or a liquid amount measuring device for measuring the amount of water filled.
  • the invention makes it possible to determine the properties of a large number of different detergents (in particular via their composition), so that the amount of detergent used or to be used can be determined even better.
  • the invention is illustrated below with reference to a non-limiting embodiment shown in the single figure for a washing machine according to the invention. Shown is a schematic representation of relevant to the invention parts of the first embodiment of a washing machine according to the invention, in which a method according to the invention can be performed.
  • the washing machine 1 of the figure has a tub 2, in which a drum
  • the axis of rotation 19 of the drum 3 is directed from the horizontal by a small angle (e.g., 13 °) forwardly upwards so that the user of the washing machine 1 has easier access and insight into the interior of the drum 3.
  • a small angle e.g. 13 °
  • the axis of rotation 19 of the drum 3 is directed from the horizontal by a small angle (e.g., 13 °) forwardly upwards so that the user of the washing machine 1 has easier access and insight into the interior of the drum 3.
  • an impedance sensor 10 is arranged, which is generally an electrode system of a plurality of electrodes, for example, two capacitor plates. With the aid of impedance sensor 10, an existing in the dispenser 12 detergent or an aqueous liquid containing this detergent can be analyzed to obtain information about the detergent and thus on the design of a washing program.
  • the washing machine 1 also has a liquor inlet system comprising a water connection fitting for the domestic water network 20, an electrically controllable valve 21 and a supply line 13 to the tub 2, which may optionally also be guided over the Waschstoffein réelleschale 12, from the incoming water detergent portions in the Lye container 2 can transport.
  • the valve 21 as well as the heater 16 can be controlled by a control device 8 in response to a program flowchart, the time program and / or the achievement of certain Measured values of parameters such as liquor level, liquor temperature, speed of the drum, etc. may be bound within the washing machine 1.
  • 6 means a pressure sensor, ie a sensor for the measurement of the hydrostatic pressure, in the tub 2.
  • the hydrostatic pressure p results from the level of the forming in the tub 2 free fleet 7.
  • the washing machine 1 comprises a measuring device 15 for determining the filled amount of water. It can be used, for example, as a water meter or as a flowmeter be educated. In the case of a flow meter, the amount of water flowed in is calculated in conjunction with a detected filling time. The flow can also be determined by measuring the time to reach a given level height, which corresponds to a certain fixed amount of water. 18 means a drain pump for pumping off the wash liquor 7.
  • 9 denotes an impedance sensor in the tub 2, wherein the structure of electrodes is not shown here in detail.
  • the signals of the impedance sensors 9 and 10 as well as the rotational speed of the drum, its loading with laundry items, the hydrostatic pressure, etc., and the measured values are fed to the control device 8.
  • 1 1 means a display device, with the process parameters, in particular a drainage of a washing program under optimal detergent use (eg represented by a green photodiode) or under non-optimal detergent use (eg represented by a red photodiode) can be displayed.
  • a dosage recommendation for a user of the washing machine can also be displayed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un lave-linge (1) comprenant une cuve (2), un tambour (3) accueillant les pièces de linge (4), un moteur d'entraînement (5) pour le tambour (3), un capteur d'impédance (9) disposé à l'intérieur de la cuve (2) pour la mesure d'un signal d'impédance dépendant de la composition d'un liquide aqueux (7) présent dans la cuve (2), et une unité de commande (8), ledit procédé comprenant la mise en oeuvre des étapes suivantes: (a) fourniture d'un liquide aqueux (7) contenant des tensioactifs à une concentration ctensioactif définie de manière à respecter la relation cCMC ≤ ctensioactif < climite, cCMC représentant une concentration critique de formation de micelles; (b) mesure de la concentration de tensioactif ctensioactif dans le liquide aqueux préparé à l'étape (a) par acquisition et analyse de signaux d'impédance du capteur d'impédance (9) par l'application d'une correspondance entre les signaux d'impédance et la concentration de tensioactifs, stockée dans l'unité de commande (8); (c) mise en oeuvre d'une phase de lavage, de telle manière que (c1) pour une concentration de tensioactifs ctensioactif ≥ climite, une dilution du liquide aqueux contenant un tensioactif est réalisée jusqu'à ce que la relation cCMC ≤ ctensioactif< climite soit atteinte; (c2) lors d'une concentration de tensioactif mesurée ctensioactif< cCMC, du produit de lessive est ajouté et/ou un programme d'entraînement du tambour (3) pour cette concentration de tensioactif, stocké dans l'unité de commande (8), est mis en oeuvre. L'invention concerne également un lave-linge (1) approprié pour la mise en oeuvre dudit procédé.
PCT/EP2016/053135 2015-03-13 2016-02-15 Procédé pour faire fonctionner un lave-linge comprenant un capteur d'impédance et lave-linge pour la mise en oeuvre de ce procédé WO2016146321A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680015574.3A CN107429462B (zh) 2015-03-13 2016-02-15 用于运行具有阻抗传感器的洗衣机的方法以及洗衣机
EP16704247.2A EP3268528B1 (fr) 2015-03-13 2016-02-15 Procédé pour faire fonctionner un lave-linge comprenant un capteur d'impédance et lave-linge pour la mise en oeuvre de ce procédé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015204536.6A DE102015204536A1 (de) 2015-03-13 2015-03-13 Verfahren zum Betrieb einer Waschmaschine mit einem Impedanzsensor sowie hierzu geeignete Waschmaschine
DE102015204536.6 2015-03-13

Publications (1)

Publication Number Publication Date
WO2016146321A1 true WO2016146321A1 (fr) 2016-09-22

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PCT/EP2016/053135 WO2016146321A1 (fr) 2015-03-13 2016-02-15 Procédé pour faire fonctionner un lave-linge comprenant un capteur d'impédance et lave-linge pour la mise en oeuvre de ce procédé

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Country Link
EP (1) EP3268528B1 (fr)
CN (1) CN107429462B (fr)
DE (1) DE102015204536A1 (fr)
WO (1) WO2016146321A1 (fr)

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US10927487B2 (en) 2015-12-29 2021-02-23 Electrolux Appliances Aktiebolag Laundry washing machine provided with a control panel
US11066772B2 (en) * 2015-12-29 2021-07-20 Electrolux Appliances Aktiebolag Laundry washing machine provided with a control panel

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CN110924049B (zh) * 2018-09-18 2022-10-28 青岛海尔智能技术研发有限公司 一种洗衣机及其控制方法
CN110055717A (zh) * 2019-05-10 2019-07-26 苏州博学智能科技有限公司 一种智能洗衣机洗涤方法
CN110093750A (zh) * 2019-05-10 2019-08-06 苏州博学智能科技有限公司 一种带自助添加洗涤剂功能的智能洗衣机洗涤方法

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DE102015204536A1 (de) 2016-09-15

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