Electrolux Appliances Aktiebolag

Electrolux Home Products Corporation N.v.

Svend Erik Christiansen

Laurent Jeanneteau

Alex Viroli

Massimo Nostro

Andrea Fattorini

Thibaut Rigolle

Michael Herzog

Massimo Zangoli

Luca Zannoni

Bryan Thomas Phillips

Ulrich Häutle

Filippo Martini

Andrea Rossi

Fabio Angeli

Filippo Milanesi

Gerhard Klein

Mario Barocci

Gianluca Venturini

Nicola Terracciano

Martin Kessler

Paul Zhang

Emanuel Urgese

Lukasz Wasinkiewicz

Roberto Ferrozzi

Adriano Scotto D'Apollonia

Jacek Jurek

Elia Schiaratura

Michele Forti

Diana Valerio

Laurent Jeannteau

Laurent Jeannetau

The present invention relates to a method for controlling a cooking process by using a liquid in a cooking vessel, for example a cooking pot, upon a cooking hob (). The method comprises a step of determining a cooking parameter of the liquid in the cooking vessel at a predetermined time (tB, tBP), a step of adjusting a heating power density (P) of a cooking zone of the cooking hob () for transferring a heating power (P) to the cooking vessel placed on the cooking zone; and a step of reducing the heating power density (P) transferred to the cooking vessel from an initial power (iP) to a simmering power (PS). Further, the present invention relates to a cooking vessel for the cooking hob (). Moreover, the present invention relates to a cooking appliance for performing the cooking process.

Method for controlling a cooking process by using a liquid

The present invention relates to an induction cooking hob () including at least one cooking area (), wherein the cooking area () comprises at least three induction coils (). The induction coils () of at least one cooking area () are arranged side-by-side and in series. Each induction coil () of at least one cooking area () has an elongated shape. The longitudinal axes of the induction coils () within one cooking area () are arranged in parallel. Each induction coil () of the cooking area () is associated with a dedicated induction generator (). The induction generators () are connected or connectable to at least one current line (). The induction generators () are connected to and controlled or controllable by at least one control unit (). Requested powers (rP) for each used induction generator () are adjusted or adjustable independent from each other by a user interface (). Instant powers (iP) of the induction generators () within a cycle pattern (T, T, . . . , T) are controlled or controllable independent from each other by the control unit (). Further, the present invention relates to a method for controlling a cooking area.

Induction cooking hob including a cooking area with three or more induction coils and a method for controlling a cooking area

The invention relates to a method for determining properties of the electrical current provided to an induction heating element () of an induction cooking appliance (). The induction cooking appliance () has a heating power energy unit () including a heating power generator () with at least one switching element () adapted to provide pulsed electric power to said induction heating element (). The induction cooking appliance () also has an oscillating circuit () with at least one resonance capacitor (). The induction heating element () is electrically coupled with the heating power generator () and the oscillating circuit (). The induction cooking appliance () also has a control entity (), wherein an input of a measurement circuit () is coupled with a node of the heating power energy unit ().

Method for determining properties of electrical current provided to an induction heating element

The invention relates to a method for boil detection at a heating zone of an induction hob (), the method comprising the steps of: &#x2014;disabling (S) a power control mechanism of the induction hob by setting the frequency of the AC-current provided to an induction coil of the induction hob to a fixed value; &#x2014;measuring (S) values of an electrical parameter provided within the induction hob (); &#x2014;interpolating (S) the measured electrical parameter values by gathering a plurality of values of the electrical parameter within a time window and calculating the average value of said gathered plurality of values thereby obtaining interpolated electrical parameter values. &#x2014;calculating (S) a gradient measure indicative for the differential change of the interpolated electrical parameter values over time; &#x2014;determining (S) the boil point based on the calculated gradient measure.

Method for boil detection and induction hob including a boil detection mechanism

The present invention relates to an induction cooking hob () including at least one cooking area (), wherein the cooking area () comprises at least three induction coils (). The induction coils () of at least one cooking area () are arranged side-by-side and in series. Each induction coil () of at least one cooking area () has an elongated shape. The longitudinal axes of the induction coils () within one cooking area () are arranged in parallel. Each induction coil () ofthe cooking area () is associated with a dedicated induction generator (). The induction generators () are connected or connectable to at least one current line (). The induction generators () are connected to and controlled or controllable by at least one control unit (). Requested powers (rP) for each used induction generator () are adjusted or adjustable independent from each other by a user interface (). Instant powers (iP) of the induction generators () within a cycle pattern (T1, T2, . . . , T11) are controlled or controllable independent from each other by the control unit (). Further, the present invention relates to a method for controlling a cooking area.

The invention relates to a method for controlling an induction hob (), the induction hob () comprising a plurality of induction coils () and two or more power units (), each power unit () being coupled with one or more induction coils (), wherein a cooking zone is formed by associating one or more induction coils () to a coil group (-), the method comprising the steps of: &#x2014;defining one or more coil groups (-), each coil group (-) being associated with one or more induction coils (); &#x2014;calculating a relative power value or relative electrical parameter value of each coil group (-) based on a maximum power value or maximum electrical parameter value, the maximum power value being the power value of the coil group with the highest power request, respectively, the maximum electrical parameter value being an electrical parameter value of the coil group (-) with the highest power request; &#x2014;calculating, for each coil group (-), a coil activation number based on the relative power value or relative electrical parameter value, the coil activation number being the number of induction coils () to be activated in subsequent steps of a coils activation sequence; &#x2014;establishing a coils activation schedule based on the coil activation number; &#x2014;operating the induction hob () according to the coils activation schedule. wherein the power units () are operated according to a master-slave configuration, wherein a master power unit is adapted to calculate the coil activation number, establish the coils activation schedule and operate the plurality of induction coils () of a master power unit and one or more slave power units according to the coils activation schedule.

Method for controlling an induction hob

A method for controlling a cooking hob with one or more induction coils covered by a cookware and forming a cooking zone. All induction coils of the cooking zone are alternately activated. The method includes setting an average power to be transferred to the cookware by a user, determining a frequency, estimating a maximum average power if all induction coils of the cooking zone would be activated with said frequency, estimating a percentage power defined as quotient between the set average power and the estimated maximum average power, estimating a calculated number of coils defined as product of the number of coils within the cooking zone and the percentage power, defining a minimum number of simultaneously activated coils within the cooking zone by an integer value of the calculated number, and defining a temporal activation of a further one of the coils by a fractional part of the calculated number.

Method for controlling an induction cooking hob with a plurality of induction coils and an induction cooking hob

A method for assigning a unique identifier to a hob induction coil of an induction hob including a plurality of hob induction coils, the method including the steps of: placing one or more device induction coils of a device above one or more hob induction coils such that at least one device induction coil and at least one hob induction coil are facing each other; establishing a communication link between the device induction coil and the hob induction coil, wherein information regarding a unique identifier is transmitted to the hob induction coil by the device induction coil; and receiving information regarding the unique identifier by the hob induction coil and storing the identifier associated with the hob induction coil within a memory of the induction hob.

Method and device for providing a unique identifier to a hob induction coil

An induction hob including a first heating region with a first induction coil and a second heating region with a second induction coil is provided. First and second resonant converters drive an AC current through the first and second induction coils. The first and second resonant converters form a half-bridge resonant converter that is continuously driven such that a direction of current flow through the first induction coil and the second induction coil is alternating. The half-bridge resonant converter controls the output power of the first and second heating regions by varying the frequency of the AC current through the respective induction coil. The first and second resonant converters have different resonance frequencies such that the resonance frequency of the first resonant converter is at least 1.4 times higher than the resonance frequency of the second resonant converter.

Induction hob and method for operating an induction hob

A method of detecting cookware () on an induction hob () including a plurality of induction heating coils () each being adapted for heating, in the activated state, cookware () placed on the induction hob (). With the method, detecting cookware () is based on signals generated by at least one active induction heating coil () through the action of parasitic electromagnetic coupling effects in at least one inactive induction heating coil ().

Method of detecting cookware on an induction hob, induction hob and cooking appliance

A modular electronic and/or electric apparatus including a plurality of circuit units connected by an internal communication bus. The circuit unit includes at least two serial resistor elements forming a voltage divider. The resistor elements of the circuit units are serially connected and form an ID wire. The ID wire is interconnected between a first voltage terminal and a second voltage terminal. The circuit unit comprises at least one analog-digital converter. A connection point between two resistor elements of one circuit unit is connected to an analog input terminal of the analog-digital converter. A digital output terminal of the analog-digital converter is connected to the internal communication bus. The modular electronic and/or electric apparatus includes a master unit connected to the internal communication bus. In particular, the present invention relates to a modular domestic appliance including a plurality of circuit units connected by an internal communication bus.

Modular electronic apparatus including a plurality of circuit units connected by an internal communication bus

A hob and methods for operating such a hob. The hob includes a cooking surface adapted to receive a number of pots. A user interface allows a user to select and adjust at least one parameter of a cooking zone associated to a pot while indicating the number of pots on the selected cooking zone and a pot detection unit to detect the presence and non-presence of pots on the cooking surface. The hob further includes a control unit that cooperates with the pot detection unit and the user interface to control the function of commands received through the user interface. The control unit can cause a selection of a certain cooking zone and provide a corresponding indication that the certain cooking zone is from now on selected, if temporal interruption of a presence of a pot on the certain cooking zone was detected.

Hob and methods for operating such a hob

The present invention relates to an induction cooking hob () with a plurality of induction coils (). The induction cooking hob () comprises a cooking surface () and a control unit. The cooking surface () includes a cover plate. The induction coils () are arranged side-by-side according to a predetermined scheme and below the cover plate. At least one induction coil () is marked by an identification symbol (). The identification symbol () includes a first element () and a second element (), wherein the first element () extends beyond the diameter of the corresponding induction coil () and the second element () marks the diameter of said induction coil ().

Induction cooking hob with a plurality of induction coils

An induction heating generator includes a rectifier circuit (). Four capacitors (C, C, C, C) form a bridge circuit between two output terminals of the rectifier circuit (). The bridge circuit includes a first capacitor series (C, C) and a second capacitor series (C, C). An induction coil (L) is interconnected in the center of the bridge circuit. At least two semiconductor switches (S, S) are connected in each case parallel to one of the capacitors (C, C) of the first capacitor series (C, C). The induction heating generator includes a control circuit block () for controlling the control electrodes of the semiconductor switches (S, S). A shunt element (SE) is connected in series with the first capacitor series (C, C).

Induction heating generator and an induction cooking hob

The present invention relates to an induction hob with a cooking surface () and a number of induction coils () within said cooking surface (). The induction coils () are arranged on the cooking surface () according to predetermined scheme, so that at least two induction coils () can be covered by a standard cooking vessel (). Each induction coil () is connected to at least one induction generator being switched or switchable between a high power and a low power. Each induction generator is separately controllable, so that the induction coils () are switched or switchable between the high power and the low power. At least one control unit is provided for controlling the individual induction coils () according to a predetermined time pattern. Further, the present invention relates to a corresponding method for controlling the induction hob.

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Forli, Italy

Svend Erik Christiansen