EP2034799B1 - Champ de cuisson doté d'un dispositif de capteur et procédé de détection de vaisselle de cuisson sur un champ de cuisson - Google Patents

Champ de cuisson doté d'un dispositif de capteur et procédé de détection de vaisselle de cuisson sur un champ de cuisson Download PDF

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Publication number
EP2034799B1
EP2034799B1 EP08104967.8A EP08104967A EP2034799B1 EP 2034799 B1 EP2034799 B1 EP 2034799B1 EP 08104967 A EP08104967 A EP 08104967A EP 2034799 B1 EP2034799 B1 EP 2034799B1
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European Patent Office
Prior art keywords
sensor
sensor elements
control unit
detection step
elements
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EP08104967.8A
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German (de)
English (en)
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EP2034799A1 (fr
Inventor
Jesus Acero Acero
Rafael Alonso Esteban
Jose-Ramon Garcia Jimenez
Ignacio Garde Aranda
Pablo Jesus Hernandez Blasco
Fernando Monterde Aznar
Ramon Peinado Adiego
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food
    • H05B1/0266—Cooktops
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/03—Heating plates made out of a matrix of heating elements that can define heating areas adapted to cookware randomly placed on the heating plate
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/05—Heating plates with pan detection means

Definitions

  • the invention relates to a hob with a sensor device according to the preamble of claim 1 and a method for detecting cookware on a hob according to the preamble of claim 12.
  • Cooking hobs in particular so-called matrix cooking hobs, are known from the prior art with a sensor device for detecting cooking utensils placed on a cooking surface.
  • the sensor device has sensor elements which are arranged in a mostly rectilinear, right-angled sensor raster beneath a glass-ceramic cover plate of the hob.
  • the sensor elements are activated or deactivated in accordance with a predetermined search program by a control unit of the hob.
  • the inductor heating elements In induction cooking fields, it is known to use the inductor heating elements as sensor elements and to detect the cookware with the aid of a loss angle or an inductance of the inductor heating element influenced by the feedback of the cookware element.
  • all sensor elements for detecting the cookware are activated simultaneously.
  • a standby mode in which the control unit must periodically execute the search program with a period of at most a few seconds in order not to miss setting up a cookware element, this can be due to the large number of data read in parallel to a comparatively high demand for computing power and the activation energy of the sensor elements lead to a high power consumption in standby mode.
  • the invention is in particular the object of providing a hob, which has a search program with a high energy efficiency.
  • the invention is particularly based on a hob with a sensor device for detecting mounted on a cooking surface cookware with in a sensor grid arranged sensor elements and a control unit for activating and deactivating the sensor elements according to a search program.
  • the control unit is designed to activate a selection of different sensor elements in a time sequence for coarse-mesh detection of the cookware in at least one first detection step and then, if cookware has been detected by at least one sensor element, in a second Detection step to activate sensor elements in an environment of this sensor element.
  • first detection step an energy-saving operation of the search program with a coarse spatial resolution can be realized, while a high spatial resolution and the associated energy-intensive activation of many sensor elements, the evaluation of which also requires a high computational effort, in the second detection step only in the environment of already recognized in the first detection step cookware elements must be made.
  • An inefficient use of energy and computational resources by high-resolution scanning of empty areas of the cooking rock can be avoided.
  • any structure with a mesh size greater than the mesh size of the sensor raster should be referred to as coarse mesh in this context.
  • control unit is designed to activate sensor elements in a partial grid of the sensor raster which is coarsely meshed in comparison to the sensor raster in the first detection step.
  • the grid should be a set of points formed by the crossing points of at least two lines of lines, in particular of parallel lines of lines.
  • a partial grid is a grid formed by subshares of the lineages.
  • control unit such that in each case one sensor element is activated from a plurality of disjoint groups of sensor elements, and different elements of each group are successively activated in chronological order.
  • sensor elements whose positions correspond to one another can be assigned to an equivalence class.
  • the elements of an equivalence class can be activated simultaneously and all equivalence classes can be run through in succession.
  • four adjacent sensor elements arranged in a square can be combined to form a group, wherein, for example, the sensor elements defining the group at the bottom left are combined into an equivalence class.
  • the equivalence classes may be traversed such that their representatives are changed clockwise or counterclockwise.
  • the selection of the sensor elements may comprise only one sensor element and / or be a random selection.
  • control unit is designed to periodically change the coarse mesh subgrid used in the first detection step, the entire area of the cooktop can be scanned in the course of a period despite the low spatial resolution used in the first detection step, so that even very small cookware elements that are in use the coarse spatial resolution are not recognizable, can be detected.
  • a systematic search for cookware can be achieved in that the control unit is designed such that in the second detection step all sensor elements contained in an environment with a predetermined radius are activated.
  • the radius can be chosen depending on a lattice constant of the sensor raster so that on the one hand the energy consumption during detection is kept within limits and on the other hand, the detection is sufficiently fast.
  • the second detection step is repeated inductively, wherein the sensor elements, in the position of a cookware element has been detected, are selected as the center of a new environment. Sensor elements that have already been activated in the previous detection step and that lie within the environment need not be reactivated.
  • the advantages of the invention are obtained, in particular, in cooktops with induction heating elements arranged in the sensor grid.
  • Such hobs are often referred to as matrix hobs.
  • the induction heating elements include inductor coils that can be used for inductive detection of the cookware. If, however, further sensor elements, for example capacitive sensors, are used in addition to the induction heating elements, it is advantageous if, after the detection of the position and size of the cookware element in a further detection step by means of a check of a loss angle and / or an inductance of the induction heating is determined the detected cookware element is heated by the induction heating elements.
  • control unit is designed to activate the sensor elements in a time sequence with a first sampling frequency in a normal operation and to activate the sensor elements in a time sequence with a second sampling frequency in a fast search operation, wherein the second sampling frequency is higher than the first sampling frequency.
  • control unit is advantageously designed such that it activates the quick search mode when a signal of a user has been detected.
  • a signal can be given by the switching on of the hob or a specific heating zone or heating function or by the direct start of the quick search operation by a selection of the operator.
  • the hob comprises means for selecting a portion of the hob
  • the controller is configured to concentrate the search program on the selected portion, further acceleration of the process and energy savings can be achieved.
  • the operator may select the approximate position of the cookware element and the controller may start the search program from the selected position, for example by activating the sensor elements in concentric widening circles and after detecting a cookware element at least one sensor element repeats the second detection step described above is performed until the entire bottom surface of the cooking utensil element is detected.
  • the sensor elements are activated in a coarse-meshed sub-grid in a vicinity of the center of the area selected by the operator, thus performing a detection with low resolution, which is subsequently improved by a second detection step.
  • control unit is designed, when it has been detected that a cookware element has been removed from the area of a sensor element, to start a search program for tracking a movement of the cookware element.
  • the search program for tracking the movement of the cooking utensil element can be done by activating the sensor elements in a coarse-meshed sub-grid in a lower resolution in order to detect even rapid movements of the cooking utensil.
  • the more accurate detection of the cooking utensil element may be made after completion of the movement in another mode of operation.
  • the sampling frequency of the search program can be increased upon detecting a movement.
  • Another aspect of the invention relates to a method for detecting cookware on a hob by means of a sensor device comprising sensor elements arranged in a sensor raster.
  • FIG. 1 shows a hob with a sensor device 10 for detecting mounted on a designed as a glass ceramic hob cooking utensils 16.
  • the sensor device 10 includes a plurality of arranged in a sensor grid sensor elements 12, which simultaneously form heating elements of the hob and are arranged below the cooking surface.
  • the cooktop comprises a control unit 14 for controlling an operation of the cooktop and the sensor device 10.
  • the control unit 14 evaluates the signals of the sensor elements 12 and is further designed by interfaces to activate and / or deactivate the sensor elements 12.
  • the sensor elements 12 can be controlled independently of each other.
  • the control unit 14 is a universally programmable arithmetic unit. It actuates the sensor elements 12 in accordance with a search program implemented in the control unit 14.
  • the cooktop is a matrix-type induction cooktop. It comprises a plurality of induction radiators, in the illustrated, simplified embodiment 48 pieces.
  • the induction heaters are arranged in a square 6 x 8 grid. There are embodiments of the invention with well over 48 or less than 48 induction heaters conceivable.
  • the induction heaters are essentially induction coils and are simultaneously used as sensor elements 12.
  • the control unit 14 generates an alternating current in the induction coil and detects a loss angle and / or an inductance of the induction coil or the induction heater. If one or both values deviate from a normal value by more than a predetermined threshold value, the control unit 14 recognizes that the respective sensor element 12 or induction heating element is covered by a cookware element 16.
  • the normal value corresponds to the value of the loss angle or the inductance in the case of a free cooking surface, ie without the cookware 16 set up.
  • the search program is used to detect an area covered by a pot or pan bottom surface of the hob. Depending on the area detected, the control unit 14 flexibly defines an area approximately corresponding heating zone from a group of induction heaters.
  • the control unit 14 controls a display 18 by way of a graphic interface (not explicitly shown here) on which results of the search program and active heating zones defined as a function of the results of the search program are graphically displayed during operation.
  • two cookware elements 16a, 16b are arranged on the hob.
  • the horizontally hatched induction heating elements or sensor elements 12 are completely covered by one of the cookware elements 16a, 16b and are each grouped in a heating zone associated with the corresponding cookware element 16a, 16b.
  • control unit 14 is designed by suitable software to activate in a first detection step a selection of different sensor elements 12 in a temporal sequence for coarse mesh detection of the cookware and then when at least one sensor element 12 cookware 16 has been detected in To activate a second detection step sensor elements 12 in an environment of this sensor element 12.
  • the first detection step is repeated periodically when no cookware element 16a, 16b has been detected.
  • the state of the hob goes through four phases that are in the FIGS. 2a-2d are shown schematically.
  • the FIGS. 2a-2d show only one Section of the hob with 16 induction heating elements.
  • the in the FIGS. 2a-2d Patterns shown are periodically continued over the entire cooking surface area.
  • the software of the control unit 14 is configured such that in the first detection step sensor elements 12 are activated in a partial grid of the sensor raster which is coarsely meshed in comparison to the sensor raster.
  • the sensor elements 12 are divided into groups, each with four sensor elements 12, each corresponding to a square section of the entire hob.
  • the four sensor elements 12 in a group are each arranged in a square, so that the groups are geometrically congruent.
  • the control unit 14 activates the respective equivalent sensor elements 12 from the different groups simultaneously. Equivalent are the sensor elements 12 with the same position within the group - that is, for example, the front left sensor elements 12 in the operator's view.
  • the four possible positions of the sensor elements 12 within a group define four equivalence classes of sensor elements 12.
  • the four elements of an equivalence class form a coarse-meshed sub-grid whose points are separated by a respective not belonging to the sub-grid point of the sensor raster.
  • FIGS. 2a-2d show phases in which each of the sensor elements 12 of an equivalence class are activated.
  • the activated sensor elements 12 are each hatched. In the chronological order are in the FIGS. 2a-2d cycle through the states shown.
  • the control unit 14 in each case activates a sensor element 12 from the disjoint groups of sensor elements 12, each consisting of four adjacent sensor elements 12. These groups of sensor elements 12 are arranged in the FIGS. 2a-2d each indicated by a dashed circle. In the temporal sequence, the control unit 14 passes through the equivalence classes such that, within each group of sensor elements 12, each individual sensor element 12 is periodically activated and deactivated. Within a group, the sensor elements 12 are activated in a clockwise direction. A clock in which the active sensor elements 12 are reversed, is about 1 second, so that the period is about 4 seconds. Thus, the control unit 14 is configured to periodically change the coarse mesh subgrid used in the first detection step.
  • FIG. 3a shows the state of the hob during a first, FIG. 2a corresponding phase of the four phases of the first detection step, which corresponds to a standby search operation. If the control unit 14 has not detected a cookware element 16 in the first detection step, the time sequence described above is repeated until either the search program is ended - for example, by switching off the hob - or until a cookware element 16 is found. In the latter case, if, for example, as in FIG. 3a 4, the control unit 14 has detected the overlap of a particular sensor element 12a with a cookware element, the search program jumps to the second detection step, in which the size, shape and position of the cookware element 16 is measured in a higher spatial resolution.
  • the second detection step is schematically in FIG. 3b dargterrorism.
  • the control unit 14 activates all sensor elements 12 contained in an environment with a predetermined radius R, that is to say those which are not connected to the previously activated coarse-mesh subgrid (FIG. FIG. 3a ) belonging sensor elements 12th
  • the vertically hatched sensor elements 12 are activated and the control unit 14 will detect the cookware element 16 in the region of three further sensor elements 12b-12d.
  • the second detection step is repeated accordingly, wherein in the next detection step, the sensor elements 12, which have detected a cookware element adjacent sensor elements 12 are activated, unless they were already activated in the previous detection step.
  • the sensor elements 12e which are activated in the further detection step and are shown horizontally hatched, do not detect any cookware element, so that the search program would have been completed in this example and the control unit 14 would be the one described in FIG FIG. 3b shown in bold lines, as sensor elements used 12a - 12d induction heating elements to a heating zone can summarize. Thereafter, the control unit 14 again jumps to a standby mode with respect to the cookware search, in which the first detection step with a coarse scan of the hob with the outside of the heating zone as described above arranged sensor elements 12 is repeated for periodic scanning of the hob.
  • the control unit 14 in a normal operation activates the sensor elements 12 in a time sequence with a first sampling frequency of, for example, 1 s -1 , with which the phases of the first detection step are traversed, in a quick search operation, the sensor elements 12 in a time series activated with a second sampling frequency, wherein the second sampling frequency is higher than the first sampling frequency and several hertz.
  • the time interval between the detection of a cookware element 16 in the first detection step and the start of the second detection step as well as between the second detection step and the further detection step may be less than the actual distance between them FIGS. 2a-2d illustrated phases of the first detection step.
  • the control unit 14 activates the quick search operation when a signal of a user has been detected.
  • the user signal may be, for example, either the actuation of a search key not shown here, the switching on of a cooktop by the actuation of a temperature selector switch or the selection of a hob area.
  • the touch screen or display 18 forms a means for selecting a portion of the hob, the control unit 14 being adapted to concentrate the search program on the selected area.
  • the search program activates the sensor elements 12 starting from the center in concentric circles in the in FIG. 3b first shown in a coarse-meshed sub-grid and then, in a second detection step, which is started when a cookware element was detected, with a higher spatial resolution.
  • the software of the control unit 14 also includes a special search program for tracking a movement of the cookware element 16. This particular search program is then started when it has been detected that a cookware element 16 has been removed from the area of a sensor element 12. For this purpose, the control unit 14 periodically activates the sensor elements 12 in a region in which a cookware element has already been detected. If the control unit 14 recognizes from the detected impedance characteristics that the cookware element 16, the sensor element 12 and the Induction heating is no longer covered, the special search program is turned on.
  • FIG. 4 shows schematically a method for detecting cookware 16 on a hob of the type described above.
  • the method uses a sensor device 10 of the hob, which comprises sensor elements 12 arranged in a sensor grid.
  • a first detection step which is repeated periodically when no cookware element has been detected, various sensor elements 12 in the above in connection with the FIGS. 2a-2d activated chronological sequence. If cookware 16 has been detected by at least one sensor element 12, sensor elements 12 in an environment of this sensor element 12 are activated in a second detection step.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (11)

  1. Champ de cuisson doté d'un dispositif de capteur (10) pour détecter la présence d'une vaisselle de cuisson (16, 16a, 16b) déposée sur une surface de cuisson, avec des éléments de capteur (12) disposés en une grille de capteurs et avec une unité de commande (14) pour activer et désactiver les éléments de capteur (12) selon un programme de recherche, caractérisé en ce que l'unité de commande (14) est conçue pour activer, dans au moins une première étape de détection pour la détection à grandes mailles de la vaisselle de cuisson (16, 16a, 16b), une sélection de différents éléments de capteur (12) et ensuite, lorsque la vaisselle de cuisson (16, 16a, 16b) a été détectée par au moins un élément de capteur (12), activer dans une deuxième étape de détection des éléments de capteur (12) situés dans un entourage de cet élément de capteur (12), l'unité de commande (14) étant conçue pour activer dans la première étape de détection des éléments de capteur (12) dans une grille partielle à grandes mailles de la grille de capteurs grandes mailles par comparaison avec la grille de capteurs.
  2. Champ de cuisson selon la revendication précédente, caractérisé en ce que l'unité de commande (14) est conçue pouractiver simultanément plusieurs éléments de capteur (12) notamment respectivement un élément de capteur (12) de plusieurs groupes disjoints et pour parcourir selon une suite temporelle tous les éléments de groupes disjoints.
  3. Champ de cuisson selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (14) est conçue pour modifier périodiquement la grille partielle à grandes mailles utilisée dans la première étape de détection.
  4. Champ de cuisson selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (14) est conçue pour activer dans la deuxième étape de détection tous les éléments de capteur (12) contenus dans un entourage de rayon prédéterminé (R).
  5. Champ de cuisson selon l'une quelconque des revendications précédentes, caractérisé par des éléments de chauffage par induction disposés dans la grille de capteurs.
  6. Champ de cuisson selon la revendication 5, caractérisé en ce que les éléments de capteur (12) sont les éléments de chauffage par induction
  7. Champ de cuisson selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (14) est conçue pour activer en fonctionnement normal les éléments de capteur (12) selon une suite temporelle avec une première fréquence de balayage et pour activer en fonctionnement de recherche rapide les éléments de capteur (12) selon une suite temporelle avec une deuxième fréquence de balayage, la deuxième fréquence de balayage étant plus élevée que la première fréquence de balayage.
  8. Champ de cuisson selon la revendication 7, caractérisé en ce que l'unité de commande (14) est conçue pour activer le fonctionnement de recherche rapide, lorsqu'un signal de l'utilisateur a été reconnu.
  9. Champ de cuisson selon l'une quelconque des revendications précédentes, caractérisé par un moyen (18) pour sélectionner une zone du champ de cuisson, l'unité de commande (14) étant conçue pour concentrer le programme de recherche sur la zone sélectionnée.
  10. Champ de cuisson selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de commande (14) est conçue pour faire démarrer un programme de recherche destiné à suivre un mouvement de l'élément de vaisselle de cuisson, lorsqu'il a été reconnu qu'un élément de vaisselle de cuisson a été écarté hors de la zone d'un élément de capteur (12).
  11. Procédé de détection de vaisselle de cuisson (16, 16a, 16b) sur un champ de cuisson au moyen d'un dispositif de capteur (10), qui comprend des éléments de capteur (12) disposés en une grille de capteurs, caractérisé en ce que l'on active, dans au moins une première étape de détection pour la détection à grandes mailles de la vaisselle de cuisson (16, 16a, 16b), différents éléments de capteur (12) selon une suite temporelle et, lorsqu'une vaisselle de cuisson (16, 16a, 16b) a été détectée par au moins un élément de capteur (12), on active dans une deuxième étape de détection des éléments de capteur (12) dans un entourage de cet élément de capteur (12), dans lequel on active dans la première étape de détection, avec une unité de commande (14), des éléments de capteur (12) dans une grille partielle à grandes mailles de la grille de capteurs grandes mailles par comparaison avec la grille de capteurs.
EP08104967.8A 2007-08-07 2008-08-06 Champ de cuisson doté d'un dispositif de capteur et procédé de détection de vaisselle de cuisson sur un champ de cuisson Active EP2034799B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200702291A ES2324450B1 (es) 2007-08-07 2007-08-07 Campo de coccion con un dispositivo sensor y procedimiento para la deteccion de bateria de coccion sobre un campo de coccion.

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EP2034799A1 EP2034799A1 (fr) 2009-03-11
EP2034799B1 true EP2034799B1 (fr) 2015-05-27

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US10605464B2 (en) 2012-10-15 2020-03-31 Whirlpool Corporation Induction cooktop
US10893579B2 (en) 2017-07-18 2021-01-12 Whirlpool Corporation Method for operating an induction cooking hob and cooking hob using such method
US10993292B2 (en) 2017-10-23 2021-04-27 Whirlpool Corporation System and method for tuning an induction circuit
US11140751B2 (en) 2018-04-23 2021-10-05 Whirlpool Corporation System and method for controlling quasi-resonant induction heating devices
US11212880B2 (en) 2012-10-15 2021-12-28 Whirlpool Emea S.P.A. Induction cooking top
US11596030B2 (en) 2020-06-05 2023-02-28 Whirlpool Corporation System and method for identifying cookware items placed on an induction cooktop
US12058797B2 (en) 2020-06-05 2024-08-06 Whirlpool Corporation System and method for identifying cookware items placed on an induction cooktop

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ES2362839B1 (es) * 2009-04-17 2012-05-22 Bsh Electrodomesticos España, S.A. Procedimiento para detectar elementos de bater�?a de cocción sobre un campo de cocción de matriz.
ES2382431B1 (es) 2009-07-29 2013-05-08 BSH Electrodomésticos España S.A. Aparato de coccion con al menos dos zonas de calentamiento
ES2376566B1 (es) * 2009-10-13 2013-01-29 Bsh Electrodomésticos España, S.A. Campo de cocción con sensores inductivos.
ES2388028B1 (es) 2010-03-03 2013-08-23 Bsh Electrodomésticos España, S.A. Encimera de cocción con al menos una zona de cocción y procedimiento para accionar una encimera de cocción.
KR20110136226A (ko) * 2010-06-14 2011-12-21 삼성전자주식회사 유도가열조리기 및 그 제어방법
KR101492068B1 (ko) * 2010-08-05 2015-02-10 삼성전자 주식회사 유도가열조리기 및 그 제어방법
FR2966689B1 (fr) * 2010-10-21 2016-01-08 Fagorbrandt Sas Procede de detection de recipients disposes sur une table de cuisson et table de cuisson.
KR101835714B1 (ko) * 2011-04-01 2018-03-08 삼성전자주식회사 유도가열조리기 및 그 제어방법
KR101844405B1 (ko) * 2011-04-08 2018-04-03 삼성전자주식회사 유도가열조리기 및 그 제어방법
EP2600691B1 (fr) * 2011-11-29 2019-09-04 BSH Hausgeräte GmbH Plaque de cuisson
ES2439418B1 (es) * 2012-07-20 2015-03-12 Bsh Electrodomesticos Espana Dispositivo de campo de cocción
EP2779787B1 (fr) * 2013-03-11 2015-06-17 Electrolux Appliances Aktiebolag Procédé de détection d'un ustensile de cuisson sur une plaque à induction, plaque à induction et appareil de cuisson
CN106664752A (zh) * 2014-07-14 2017-05-10 松下知识产权经营株式会社 加热烹饪器
DE102014224051A1 (de) * 2014-11-25 2016-05-25 E.G.O. Elektro-Gerätebau GmbH Induktionskochfeld und Verfahren zur Steuerung eines Induktionskochfelds
EP3291642A1 (fr) 2016-09-02 2018-03-07 Electrolux Appliances Aktiebolag Plaque de cuisson et procédé de commande d'une zone de cuisson
ES2729717A1 (es) * 2018-05-04 2019-11-05 Bsh Electrodomesticos Espana Sa Sistema de transmisión de energía por inducción.
DE102020200694B4 (de) 2020-01-22 2021-08-12 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betrieb einer Kochfeldvorrichtung und Kochfeldvorrichtung
EP3920663B1 (fr) 2020-06-05 2022-12-28 Whirlpool Corporation Système et procédé permettant d'identifier des éléments de batterie cuisine placés sur une plaque de cuisson à induction
US20240237160A9 (en) * 2022-10-05 2024-07-11 W.C. Bradley Co. Induction grill

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DE60329364D1 (de) * 2003-01-20 2009-11-05 Whirlpool Co Elektrokochplatte und Verfahren zur Feststellung die Stelle von darüber geplatzten Koch-Geräten
FR2863039B1 (fr) * 2003-11-27 2006-02-17 Brandt Ind Procede de chauffage d'un recipient pose sur une table de cuisson a moyens de chauffage associe a des inducteurs

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US10605464B2 (en) 2012-10-15 2020-03-31 Whirlpool Corporation Induction cooktop
US11212880B2 (en) 2012-10-15 2021-12-28 Whirlpool Emea S.P.A. Induction cooking top
US11655984B2 (en) 2012-10-15 2023-05-23 Whirlpool Corporation Induction cooktop
US10893579B2 (en) 2017-07-18 2021-01-12 Whirlpool Corporation Method for operating an induction cooking hob and cooking hob using such method
US10993292B2 (en) 2017-10-23 2021-04-27 Whirlpool Corporation System and method for tuning an induction circuit
US11140751B2 (en) 2018-04-23 2021-10-05 Whirlpool Corporation System and method for controlling quasi-resonant induction heating devices
US11596030B2 (en) 2020-06-05 2023-02-28 Whirlpool Corporation System and method for identifying cookware items placed on an induction cooktop
US12058797B2 (en) 2020-06-05 2024-08-06 Whirlpool Corporation System and method for identifying cookware items placed on an induction cooktop

Also Published As

Publication number Publication date
ES2324450A1 (es) 2009-08-06
EP2034799A1 (fr) 2009-03-11
ES2324450B1 (es) 2010-05-25
ES2539282T3 (es) 2015-06-29

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