EP3627054A1 - Cooking device and method for operating a cooking device - Google Patents

Abstract

The invention relates to a method for operating a cooking device (1) which has a cooking space (3) in which a food support (5) can be positioned in at least two different insertion levels (I, II, III), with a specific insertion level for a preparation program (I, II, III) is specified for the food support (5), and it is determined whether, depending on the selected preparation program, the food support (5) is arranged on the insertion level (I, II, III) provided for this and the preparation program is changed , if the food support (5) is arranged on a used insertion level (I, II, III) that deviates from the intended insertion level (I, II, III), whereby depending on the selected preparation program it is automatically detected whether in the cooking space (3) Removable components which are not required for carrying out the preparation program are arranged. The invention also relates to a cooking appliance (1).

Description

The invention relates to a method for operating a cooking device and a corresponding cooking device.

Household appliances for the preparation of foodstuffs, such as ovens, usually have a cooking space with several shelf levels into which corresponding accessories, such as roasting racks, baking trays, grill pans etc. can be inserted. Depending on the type of application, customary and manufacturer-specific information for the shelf level must be observed in order to achieve a perfect result with regard to cooking and / or browning. If the wrong shelf levels are used, the food will generally have a poorer preparation result.

From the DE 100 63 694 C2 a method for distinguishing the shape of shelves of an oven and such an oven is known. The shelf for food to be cooked can be introduced into the cooking space at different altitudes, and the altitude can be detected by methods in which radar beams are directed onto the shelf and reflected from the shelf. In addition, depending on the detected reflected signals, a distinction between a baking sheet and a grid-shaped baking rack is made possible.

Furthermore, from the EP 0 271 899 B1 a method is known in which the insertion height of a food support is detectable.

From the DE 10 2004 026 882 A1 a cooking device with a height-adjustable food support is known. The height of the food support is changed depending on the cooking status of the food to be cooked. A spindle device is provided for height adjustment.

Furthermore, from the DE 199 54 470 B4 a device for operating a oven is known, which is designed with a pyrolysis cleaning function for pyrolytic cleaning of the oven muffle. The device also comprises a signal generator which is present when the presence of the detection device is detected at least one monitored pull-out device and / or slide-in device for a food support and / or a food support at an associated position of the oven muffle generates optical and / or acoustic signals in order to inform the operator that the pull-out device and / or slide-in device for a food support and / or the food support is to be removed from the oven muffle and / or the pyrolysis cleaning function cannot be put into operation.

In all known methods and cooking devices, operation is only guaranteed to a limited extent in a variety of ways. With regard to a large number of possible preparation programs and possible insertion levels and / or the use of different items to be cooked, incorrect operation and / or poor preparation results can result, so that the user is unsatisfied with the operability of the cooking device and the preparation result.

It is an object of the present invention to provide a method and a cooking device with which the operation can be improved with regard to incorrect operation and only suboptimal preparation results.

This task is solved by the independent claims.

According to a first aspect of the invention, a method for operating a cooking device is provided. The cooking appliance has a cooking space in which at least one food support can be positioned in at least two different insertion levels. In the method according to the first aspect, a specific and therefore preferred insertion level for the food support and / or a specific type of food support is specified for at least one preparation program. This information is stored in the cooking appliance in particular as previously defined information. During subsequent operation of the cooking device, it is then recorded in this specifically selected preparation program whether, depending on the selected preparation program, the food support is arranged on the insertion level provided for this purpose and / or whether the specified type of food support is used. Depending on this comparison, the preparation program is changed, in particular automatically changed, if the food support is arranged on an insertion level that deviates from the provided, previously defined insertion level for this preparation program and / or The type of food support differs from the type of food support preferred for this preparation program. The method according to the invention can thus ensure that even if the wrong insertion level and / or an incorrect type of food support is set or used for the selected preparation program, the preparation program is changed individually and adapted to the incorrectly used insertion level and / or the type of food support . With this method, the selected preparation program can thus be changed in an intelligent manner in such a way that the preparation can also be carried out on a shelf level that is not actually intended and less suitable and / or with the non-preferred type of food support and that a preparation result can be achieved which is essentially the same corresponds if the specified shelf level and the specified type of food support are used.

It is preferably provided that the change in the preparation program is carried out as a function of the actual insertion level and / or the specific type of food support. This means that not only is there a general change in the preparation program, but a change is made that is adapted to the given actual situation. The achievement of a correspondingly provided preparation result can thus also be ensured if the change in the preparation program is adapted to the suboptimal actual insertion levels and / or to the specific suboptimal type of food support.

At least one parameter value of the preparation program is preferably changed. In this regard, for example, the preparation time and / or the distribution of the heating power to heating elements and / or the type of heating and / or the heating time can be changed.

With regard to the distribution of the heating output, the proportions of the output of the radiators originally used in this preparation program can be changed. With regard to the type of heating, a change in the heating technology can be carried out by, for example, if this is present in the cooking appliance, instead of conventional heating via a radiator Microwave energy is radiated. If the cooking appliance comprises several different energy sources, they can be combined in order to achieve the preparation result in a manner corresponding to that of an unchanged preparation program. For example, it can then be provided in an oven that the generation of the bottom heat and / or top heat is changed in a manner adapted to the insertion level actually used, which is not the preferred insertion level for the preparation program. A variation in this regard can also be possible with regard to the length of time for which such a change in the type of heating and / or the heating power and / or the heating duration takes place. It can also be provided that a different type of heating or heating technology combination is set in the cooking appliance and a corresponding preparation is carried out.

It is preferably provided that the change in the preparation program, in particular the change in the specific parameter values, is communicated to a user of the cooking appliance. The user is therefore always informed that there are certain changes in the preparation due to the selected and non-prioritized insertion level and / or the selected and non-prioritized type of food support for this preparation program.

In particular, it can be provided that the actual change in the preparation program is only carried out if, after the message and information to the user, the user confirms the change and / or fails to confirm it for a predefinable time period. Starting with the changed conditions of the preparation program is therefore preferably announced with a certain lead time and only then carried out. The user therefore has the option of reacting to this either by correcting the insertion level and / or changing the type of food support. It can also be provided that a correction of the preparation program for a specific cooking device is displayed to the user and the user then changes the insertion level and / or changes the type of food support. This is then automatically recognized by the cooking appliance and the proposed change to the preparation program is withdrawn and not carried out or, in principle, not started at all.

In particular, it is thus provided that if an incorrect insertion level and / or an incorrect type of food support for the selected preparation program is recognized, this is not only communicated to the user, but is also preferably suggested which is the preferred insertion level and / or which is a preferred one Food support type is. The user then immediately knows how to change the wrong starting conditions quickly and correctly. If this is carried out and then recognized by the cooking appliance, the selected preparation program is carried out without any change. In particular, the correction of the insertion level and / or the correction of the type of food support by the user is recognized by the cooking device and then also communicated to the latter. Only then does the selected preparation program start.

If a non-preferred insertion level for the food carrier and / or a non-preferred type of food carrier for the selected preparation program is recognized and communicated to the user and he does not respond to this message, it can also be provided that the preparation program is started anyway, however, the wrong conditions, namely the wrong shelf level and / or the wrong type of food support, which is communicated to the user, in particular displayed on a display unit. This can be done, for example, by saying by voice and / or text that the wrong insertion level has been selected, that the wrong type of food support has been selected, that too much bottom heat and / or too little top heat is being generated, and the like.

It is particularly preferably provided that a type of food support is recognized depending on its shape and / or its material. The detection of the type of food support based on its material, in particular its surface material, is particularly advantageous. This configuration also makes it possible to recognize whether preferred and predeterminable accessories are used, and in particular whether original accessories are used. This can be particularly important with a view to achieving a desired preparation result. The recognition of the material design of the type of food support can then be used to tell the user whether this type of food support is suitable for the selected preparation program or not. Since very specific types of food supports are advantageous for specific food items and individual preparation programs, this is an important influencing factor achieving a desired preparation result. Especially when the food support is made of aluminum or enamelled, this can be recognized and the suitability of this material for the preparation of the specific food can be concluded and the user can be informed.

It can also be provided here that the preparation program, which has been selected, is automatically changed in accordance with this material design of the food support type in order to achieve an optimal preparation result with these different material properties of the food support type.

If, for example, it is provided that the cooking device is made of aluminum as standard with food carriers, such as baking trays, grill pans, grill grids and the like, and the user uses a subsequently acquired enamelled food carrier element in a specific preparation program, this is recognized. In this regard, for example, on the basis of the different radiation properties of these different materials, the food support can, for example, change a value of a heating parameter in this specific preparation program, and / or change the duration of the preparation program and / or the duration of a heating phase. These are only exemplary parameter changes that are intended to indicate the possible changes. In principle, this is not to be understood as conclusive and the parameter settings specified for this can be changed for each specific preparation program.

It can also be provided that if a non-preferred type of food carrier has been used by the user for the selected preparation program, this is communicated to the user and at the same time it is suggested for which preparation program this shelf level and / or this type of food carrier would be preferred. The user can then react to this and, if necessary, select a different preparation program. This also falls under the general designation of the first aspect of the invention. The wording that the preparation program is changed is therefore also to be understood as the execution in which a different preparation program is selected. This can also be done automatically as well as user-defined.

In particular, it is provided that the insertion level and / or the type of food support is detected by radiation detection. In particular, a transceiver unit can be arranged in the cooking appliance, which comprises at least one sensor, preferably a plurality of sensors. These are designed in particular to emit radar beams. In principle, however, electromagnetic rays can also be emitted in another frequency spectrum in order to be able to determine the detection of the insertion level and / or the type of food support.

It is preferably also provided that, in the case of a function program which differs from a preparation program and in which no food is prepared, it is recognized whether there are any unnecessary accessories in the cooking space. A pyrolysis function of the cooking device is mentioned as the function program, for example. If such a pyrolysis process is to be carried out, it is checked beforehand whether accessories, such as food carriers, are in the cooking space and whether they are capable of pyrolysis. This means that it is checked in this regard whether the objects that may be present in the cooking space could be damaged by the pyrolysis process. If such accessories and / or their unsuitability for the conditions in the function program are recognized, the user is informed. The function program is only started when the relevant items in the cooking space have been removed. If, on the other hand, objects are recognized in the cooking space that are suitable for the conditions that occur when the function program is run, this function program is started automatically.

In particular, it is preferably provided that in the case of an incorrectly set insertion level in a selected preparation program, this incorrect insertion level is automatically corrected by mechanical adjustment and the food rack is brought into the specifically preferred insertion level. In this regard, the cooking device has a mechanical adjustment device which is controlled by a control unit. In particular, continuous adjustment of the insertion height is possible.

The method according to the invention in accordance with the first aspect eliminates the risk of an unsatisfactory preparation result when using incorrect accessories and / or incorrectly set insertion levels are at least reduced. In addition, help is given to the user and / or automatic corrections are carried out.

It is preferably provided in the method that if the food support is arranged on an insertion level deviating from the intended insertion level and / or the type of food support differs from the type of food support provided, this is communicated to the user and the insertion level to be preferably provided and / or the preferred one to be provided Food support type are proposed, and the preparation program is only changed if, after a specifiable waiting time, the user refrains from changing the insertion level and / or changing the food support type.

It is preferably provided that, depending on the preparation program selected, it is automatically detected whether removable components which are not required for carrying out the preparation program are arranged in the cooking space. In particular, the user is informed of the presence of unnecessary components or unsuitable components and the preparation program is only started when the components have been removed or when a predefinable time period for removing the components has passed after the notification. This can prevent undesirable effects on the course of the preparation program. In particular, this also ensures energy-efficient operation of the cooking device and an energy-efficient execution of the preparation program.

It is preferably provided that, depending on a selected function program of the cooking device and one that differs from a preparation program, it is automatically detected whether removable components that are not required for carrying out the preparation program are arranged in the cooking space. The function program can be, for example, pyrolysis for cleaning the cooking device.

It is also preferably provided here that the user has the presence of unnecessary and / or unsuitable components for the function program is communicated and the function program is only started when these components have been removed.

The invention according to the first aspect also relates to a cooking appliance which has a cooking space in which a food support can be positioned in at least two different insertion levels and which comprises at least one preparation program. For this at least one preparation program, a specific and preferred insertion level for a food support and / or a specific food support type is specified. The cooking device comprises a detection and control device, by means of which it is detected whether, depending on the selected preparation program, the inserted food rack is arranged on the shelf level provided for it and / or whether the specified type of food holder is used for this selected preparation program. The detection and control device is also designed in such a way that the preparation program is changed if the food support is arranged on an insertion level that deviates from the intended insertion level and / or the type of food support actually used differs from the proposed and preferably proposed type of food support.

Advantageous embodiments of the method according to the invention in accordance with the first aspect are to be regarded as advantageous embodiments of the cooking appliance in accordance with the first aspect of the invention.

A second aspect of the invention relates to a method for operating a cooking device which has a cooking space in which a food support can be positioned in at least two different insertion levels. For a preparation program, a specific and therefore preferred insertion level for the food support and / or a type of food support specific for the selected preparation program are specified. This information is in particular defined and defined in advance and stored in the cooking device. During subsequent operation of the cooking device and selection of such a specific preparation program, it is then determined whether, depending on the selected preparation program, the food support is arranged on the shelf level provided for this purpose and / or whether the one specified and thus preferred for the selected preparation program proposed food support type is used. If the insertion level actually used deviates from the specified insertion level and / or the type of food support used differs from the specified food support type, the actual insertion level currently used is changed. In this second aspect of the invention, an adaptation to the incorrectly selected starting conditions is thus corrected without changing the selected preparation program such that the non-preferred insertion level is changed and brought into the specifically preferred and predetermined insertion level for the preparation program. The position of the food support is thus changed and brought to the correct insertion level.

In particular, it is provided that the insertion level is changed automatically into the preferably provided insertion level. In particular, the cooking appliance has an adjustment device, which is controlled by a control device.

The shelf level is preferably changed so that the selected preparation program can be carried out unchanged. The preparation result is therefore essentially the same.

It is preferably provided that the insertion level is not changed until a user has been informed in advance of the incorrect setting conditions for the selected preparation program. In particular, this change in the insertion level is only carried out when a predeterminable waiting time has passed after the notification to the user and / or the proposed change in the insertion level has been confirmed by the user.

Embodiments of the method according to the first aspect are to be regarded as advantageous embodiments of the method according to the second aspect.

The second aspect of the invention also relates to a cooking appliance which has a cooking space in which a food support can be positioned in at least two different insertion levels and which comprises at least one preparation program. There is a specific preferred shelf level for a preparation program predefined for the food support and / or a specific food support type. The cooking device comprises a detection and control device, which is designed to recognize, depending on the selected preparation program, whether the food carrier actually used corresponds to the type of food carrier specifically and preferably specified for this preparation program and / or whether the insertion level used is the intended, preferred insertion level corresponds. In addition, the detection and control device is designed to control an adjusting device, by means of which the actual insertion level is changed, in particular automatically, when the insertion level actually used deviates from the specified insertion level and / or when the type of food support type used differs from the preferably specified food support type is changed.

Advantageous designs of the cooking device according to the invention according to the first aspect of the invention are to be regarded as advantageous designs of the cooking device according to the second aspect of the invention.

A third aspect of the invention relates to a method for operating a cooking appliance which has a cooking space in which a food support can be positioned in at least two different insertion levels. For a preparation program, a specific and preferred insertion level for the food support and / or a specific food support type is specified. During operation of the cooking device, it is then detected whether, depending on the selected preparation program, the food support used is arranged on the shelf level provided for this purpose and / or whether the specified food support is used. In the event of a detected deviation of the actual insertion level from the specified insertion level and / or in the event of a detected deviation of the type of food support used from the specified type of food support, it is output for which at least one further preparation program of the cooking device this insertion level and / or the type of food support currently used are suitable. This method thus intelligently detects whether there are incorrect starting conditions for carrying out a preparation program with regard to the insertion level and / or the food support and it is then automatically determined which other preparation program would better suit these conditions. A preparation process can thus be improved so that not in the selected preparation program is then carried out across the board, but instead a search is made to find out which preparation program would be more suitable for the preparation.

It is preferably provided that the more suitable further preparation program is then automatically selected and in particular also carried out automatically.

It can also be provided that the determined better, further preparation program is first communicated to the user. Depending on whether the user then agrees to this proposed further preparation program or does not respond to the message from the cooking appliance, the proposed further preparation program is then started automatically. If the user does not agree to this proposed better preparation program, it can be provided that he selects yet another preparation program or starts the primarily selected preparation program, even if this is not the determined preferred preparation program.

The variability of a preparation and also the flexibility in the combination of a preparation program, a shelf level and a type of food support can be made possible in a highly flexible and diverse manner.

Advantageous embodiments of the method according to the invention both according to the first aspect of the invention and according to the second aspect of the invention are to be regarded as advantageous embodiments of the method according to the third aspect of the invention.

The third aspect of the invention also relates to a cooking device which has a cooking space in which a food support can be positioned in at least two different insertion levels and which comprises at least one preparation program. For a preparation program, a specific, preferred insertion level for the food support and / or a specific type of food support is specified. A detection and control device of the cooking device detects whether, depending on the selected preparation program, the food carrier inserted and used is open the shelf level provided for this purpose is arranged and / or the specified type of food support is used. The detection and control device is also designed such that if the insertion level actually used deviates from the specified insertion level and / or if the type of food carrier used differs from the specified type of food carrier by means of an output unit, for which at least one further preparation program of the Cooking appliance this insertion level and / or this type of food support used are suitable.

Here, too, advantageous embodiments of the cooking device according to the invention according to the first aspect of the invention and according to the second aspect of the invention are to be regarded as advantageous versions of the cooking device according to the third aspect.

A fourth aspect of the invention relates to a method for operating a cooking device, in which a food support is placed in a cooking space of the cooking device and the food support is recognized. For a specific preparation program, a food support made from an at least proportionally specific material is specified and a material detection determines whether the food support currently inserted into the cooking space can be used in the selected preparation program. The method according to the invention thus defines, for a specific preparation program, which items to be cooked can be used and, in this regard, which material configuration they should have in order to be able to achieve a preferred or best preparation result. Depending on these specifications, which are stored as information in the cooking device, an actual operation and a specifically selected preparation program are then used to check whether the food support currently inserted into the cooking space is made of a material that corresponds to the material of the preferably specified food support. Depending on the material design of the food support, it can therefore be concluded whether an above-average preparation result can be achieved with this specifically selected preparation program.

The food support is preferably recognized depending on the surface material. Since the surface material has a significant influence on the preparation process, it is particularly advantageous to use this surface material to identify it perform. It is preferably recognized whether the food support has a metallic surface and / or an enamelled surface.

It is preferably also provided that in addition to the material detection of the food support, a shape detection is also carried out.

In particular, the material of the food support is recognized by detected, reflecting radiation from a transceiver unit of the cooking device. Radar beams are also preferably used here. However, other suitable beams can also be used.

The invention according to the fourth aspect also relates to a cooking appliance which has a cooking space in which a food support can be positioned in at least two different insertion levels and which comprises at least one preparation program. For a specific preparation program, a food carrier made of an at least partially specific material is specified and material detection of the food carrier currently used can be carried out in a specific operation by means of a detection and control device. Depending on the material detection, the detection and control device determines whether the food support currently inserted in the cooking space can be used or is suitable for the selected preparation program.

This is then preferably communicated to the user and, if appropriate, is preferably proposed to change the food support.

Here, too, advantageous embodiments of the first three aspects relating to the cooking appliance are to be regarded as advantageous embodiments of the cooking appliance according to the fourth aspect.

A fifth aspect of the invention relates to a method for operating a cooking device, in which specific items to be cooked for use in the cooking space of the cooking device are determined and defined in advance, and in the case of a food item carrier introduced into the cooking space in a subsequent operation, it is determined whether it is a specific, is a previously defined food support. In particular, in this method according to the fifth aspect, an original food support is defined and specified for use.

The method then detects in a subsequent operation whether such original accessories are used or not. In this regard, the appliance manufacturer can specify and define suitable original food carriers of this type. This method thus prevents preparation results from being achieved only suboptimally and / or high wear occurring in the cooking appliance due to the use of non-original accessories. In particular, it can be avoided that unsuitable food carriers are used, which can lead to damage or impairment of function or high wear of the food carrier and / or the cooking device. The use of non-original food carriers can thus be easily recognized.

The recognition of an original food carrier is preferably recognized on the basis of its shape and / or its material configuration, in particular the surface material. Embodiments of the method according to the first four aspects of the invention are to be regarded as advantageous embodiments of the method according to the fifth aspect of the invention.

Furthermore, according to the fifth aspect, the invention relates to a cooking appliance which has a cooking space into which a food support can be inserted. The cooking device comprises a detection and control device, whereby it is specified which specific cooking product carriers that can be used in the cooking space of the cooking device and by means of the detection and control device in a subsequent operation it is detected which cooking product carrier is currently inserted and whether this is a specifically specified one Food support is. In particular, the cooking appliance thus detects whether or not a predetermined original food support is used.

Here too, designs according to the first four aspects of the cooking devices are to be regarded as advantageous designs of the cooking device according to the fifth aspect.

A baking tray, a grill, a grill pan, etc. may be mentioned as a type of food support. Food containers can then also be placed on these. Food carriers can therefore be designed for both direct and indirect reception of a food.

Further features of the invention result from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description and the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively specified combination but also in other combinations or on their own, without the scope of Leaving invention. This also applies to cross-aspect characteristics and combinations of characteristics.

Exemplary embodiments of the invention are explained in more detail below with the aid of a schematic drawing. The single figure shows a front view of a cooking appliance 1.

The cooking device 1 can in particular be designed as an oven.

In the exemplary embodiment, the cooking device 1 has a muffle 2 which delimits a cooking space 3. At the front, the muffle 2 has a loading opening which can be closed by a door 4.

As an example, the figure shows that a food support 5, which can be, for example, a baking sheet, a baking rack, a grill pan or the like, is introduced into the cooking space 3. In the exemplary embodiment, three different insertion levels I, II and III are possible in the cooking chamber 3, with webs 11 being formed on opposite side walls of the muffle in this regard.

In the embodiment shown, the food support 5 is inserted, for example, in the lowest insertion level III and is held by corresponding webs 11.

The cooking device 1 also includes a detection and control unit 6 or 7, which is only shown symbolically and is arranged in the upper region of the cooking space 3. The detection and control device 6, 7 can comprise one or more sensors which are designed to emit electromagnetic radiation.

The detection and control device 6, 7 thus also comprises a transceiver unit for transmitting electromagnetic rays and for receiving or detecting correspondingly reflected rays.

In addition, controls 8 and 9 are shown on the front, which are only mentioned by way of example in terms of position and number.

In addition to the operating elements 8 and 9, an output unit 10 is also arranged in the operating device of the cooking device 1. This can be designed to display information in the form of text or the like and / or for voice output and voice input.

In one embodiment, the cooking device 1 is designed such that it can carry out a plurality of different preparation programs, which can be selected, for example, by a user via the operating elements 8 and / or 9. In this regard, each preparation program is assigned a specific preferred insertion level I, II, III for the food support 5. In addition or instead, it can be provided that a specific type of food support is specified for each specific preparation program. This possible combination between the preferred shelf level and the preferred type of food support for a preparation program is coordinated with regard to the best possible preparation result and is determined in advance in tests. The resulting knowledge is then defined and stored as information in the cooking device 1. This can be done in particular before delivery of the cooking device 1 to the customer. Likewise, however, it can also be provided that corresponding improvements or new knowledge about it are updated or supplemented in subsequently installed programs or additionally programs transferred to the cooking device 1.

If a specific preparation program is then selected by a user in a subsequent operation, a food carrier 5 is inserted into one of the insertion levels I-III and a type and / or material composition of a food carrier type that characterizes the food carrier 5 is used, and control device 6, 7 a corresponding detection is carried out. It is then recognized that the wrong shelf level and / or the wrong type of food support are used, it can be provided that the preparation program selected by the user is automatically changed by the cooking device 1, for example by changing one or more parameter values characterizing the selected preparation program. In particular, the automatic change of the preparation program takes place depending on the shelf level I-III actually used and / or depending on the type of food support actually used.

With the changed conditions for the preparation program, this is then started automatically.

It can also be provided that the detection of an incorrect insertion level I-III and / or an incorrect type of food support is communicated to the user of the domestic appliance via the display unit 10. This notification can be made before changing the preparation program. It can also be provided that possible advantageous changes to the preparation program are determined in advance and displayed and suggested to the user. In this regard, it can be provided that the preparation program is only started with the proposed changed conditions when the proposed changes are confirmed by the user. It can also be provided that the preparation program is only started with the proposed changes when a predefinable time period has elapsed, which extends between the notification of these changes to the user until the end of the time period, and no action by the user in this time period he follows.

The type of food support is preferably recognized depending on its shape and / or its material composition.

It can be provided that the user can independently change the shelf level I-III after the message that the preparation program should be carried out under changed conditions and / or can independently change the type of food support.

It can also be provided that the cooking device 1 has an adjustment mechanism 12, by means of which the insertion level I-III and thus the adjustment of the height of the food support 5 in the cooking space 3 can take place automatically. The adjusting device 12 is preferably electrically connected to the detection and control device 6, 7 and is controlled by the latter. In particular, such an adjustment device 12 can not only achieve a discrete adjustment of the insertion height I-III, but also a continuous height adjustment.

In addition, the detection and control device 6, 7 is designed such that it is detected in a preparation program selected by the user whether additional, unnecessary components are present in the cooking space, which should be removed in advance. If such unnecessary accessories are recognized, the user is informed and in particular the selected preparation program, possibly with its changes, is only carried out and started when these further components have been removed from the cooking space 3.

Preferably, the cooking device 1 also has at least one function program, which is different from a preparation program and is not designed to prepare food. A pyrolysis function is preferably provided as the function program. If such a pyrolysis process is desired and started by a user, it is automatically checked here before starting whether components are present in the cooking space 3 which should be removed beforehand. In particular, if these components would impair the pyrolysis process or would be impaired by the pyrolysis process itself, this is very useful.

Components to be removed in this way are preferably detected via the detection and control unit 6, 7.

In a further embodiment of the cooking device 1, it is at least provided that a preparation program is defined and that a specific, preferred insertion level I-III for the food support 5 and / or a specific type of food support is specified. The detection and control unit 6, 7 detects whether, depending on the selected preparation program, the food support 5 is on the same provided insertion level I-III is arranged and / or the specified type of food support is used. If a deviation of the actually used shelf level I-III from the given shelf level I-III and / or a detected deviation of the type of food support used from the given food support type is detected, the shelf level I-III actually used is changed, in particular automatically changed. This is preferably done via the adjustment device 12.

In particular, it is provided that such an adjustment of the insertion level I-III is communicated to a user in advance.

It is preferably also provided that, when a wrong insertion level I-III and / or a wrong type of food support is detected, it is determined for the selected specific preparation program for which at least one further preparation program of the cooking device 1 this insertion level I-III currently used and / or the one currently used The type of food support used is suitable. It is preferably provided that this determined further preparation program is communicated to the user and given the opportunity to confirm it and then to start or to reject it and to continue with the preparation program originally selected by him or to choose a completely different preparation program.

It can also be provided that the better further preparation program automatically determined by the cooking device 1 is automatically used and started in comparison to the originally selected preparation program.

Preferably, the detection and control device 6, 7 also detects whether original accessories in the form of an original food carrier 5 are used for the cooking device 1 and / or the specifically selected preparation program or whether this is not the case. In particular, this is determined on the basis of the shape properties of the food support 5 and / or the material properties of the food support 5. Here, too, it can be provided that the user is informed that no original accessories are used and that it is proposed to use corresponding original accessories. In particular, it can also be provided that it is proposed which specific original accessories, in particular which original food support, are to be used.

It can also be provided that it should not be primarily determined and recognized whether an original food carrier 5 or another original accessory is used in the cooking space 3, but whether the food carrier 5 is specifically suitable for the selected preparation program. This is preferably determined depending on the material design of the food support 5. It is preferably recognized whether the material design of the food support 5 used for the selected preparation program is the preferred material design. If, for example, a food support 5 made of aluminum or of a surface configuration having at least aluminum is used and if a food support element enamelled on its surface would be provided and suggested as the preferred one for the specifically selected preparation program, this is recognized and preferably communicated to the user. This can be done regardless of whether the food support 5 used is an original food support or not.

If, for example, a bread in a box shape is selected from an automatic program, the stored and advantageous recommendation is that this box shape should be inserted, for example, into insertion level II. However, if, as shown by way of example in the figure, the food support 5 with the box shape (not shown) is pushed into the insertion level III, this is recognized by the cooking device 1 and detected as a deviation from the optimal conditions.

In this regard, a correction is then possible, with the electronic oven control adapting the power ratio of the portions of the electrical power associated with the selected preparation program to the radiators used for this and / or the type of heating according to the insertion level used. In this regard, less bottom heat and more top heat could then be generated in the example mentioned. It can also be provided that a different type of heating or a different heating technology combination is then selected and started and the process adapted to it is also carried out, for example, with a possibly changed time period. In particular, a corresponding feedback to the user is carried out.

It can also be provided that a correction, i.e. a change in the oven control, adapted to the used shelf level and / or the type of food support is not possible and the display then provides the user with the corresponding information that the wrong shelf level and / or the wrong type of food support are used. If the user changes the insertion level, this is also recognized by the cooking device 1. In this regard, a corresponding feedback from the cooking device 1 to the user is then preferably given and the preparation program is carried out with the selected preparation program without any change in this regard and started automatically. It can also be provided that after informing the user of an incorrect insertion level and / or an incorrect type of food support, the insertion level is not changed and an attempt is made to start the selected preparation program anyway. In this regard, feedback can preferably be given to the user that an appropriate start has been attempted and this has, however, been terminated unsuccessfully, since the wrong conditions with regard to the insertion level and / or the type of food support are still present.

If it is also provided, for example, that baking trays made of aluminum, for example, are provided as standard for the cooking appliance 1 as the original food support, at least for a possible preparation program, and if a user uses an enamelled baking tray, for example, this is recognized by the cooking appliance 1. In this regard, it can then be provided that the cooking device 1 automatically makes changes to the selected preparation program and, for example, corrects changed heating parameters, preparation times, etc. Different radiation properties of the materials mentioned make it easy to detect and recognize them.

Reference list

1

Cooking appliance

2nd

Muffle

3rd

Cooking space

4th

door

5

Food carriers

6, 7

Registration and control unit

8.9

Controls

10th

Output unit

11

Walkways

12th

Adjustment mechanism

I, II, III

Shelf levels

Claims (9)

Method for operating a cooking device (1) which has a cooking space (3) in which a food support (5) can be positioned in at least two different insertion levels (I, II, III), with a specific insertion level (I, II , III) is specified for the food support (5), and it is detected whether, depending on the selected preparation program, the food support (5) is arranged on the insertion level (I, II, III) provided for it and the preparation program is changed when the food support (5) is arranged on a used insertion level (I, II, III) that deviates from the intended insertion level (I, II, III), characterized in that, depending on the selected preparation program, it is automatically detected whether in the cooking space (3) for Execution of the preparation program arranged unnecessary and removable components. A method according to claim 1, characterized in that the user is informed of the presence of unnecessary components and the preparation program is only started when the components have been removed or when a predetermined period of time for removing the components has passed after the notification. Method according to Claim 1 or 2, characterized in that, depending on a selected function program of the cooking device (1) and one which differs from a preparation program, it is automatically detected whether removable components which are not required for carrying out the function program are arranged in the cooking chamber (3). A method according to claim 3, characterized in that in the function program different from the preparation program, no food is cooked. Method according to one of claims 3 or 4, characterized in that the function program different from the preparation program is a pyrolysis function of the cooking device (1). A method according to claim 5, characterized in that it is checked beforehand whether accessories arranged in the cooking space (3) are capable of pyrolysis. Method according to one of the preceding claims, characterized in that it is notified to a user when accessories and / or their unsuitability for the conditions in the function program are recognized. Method according to one of the preceding claims, characterized in that the function program is started automatically when objects are recognized in the cooking space (3) which are suitable for the conditions which occur when the function program is run. Cooking device (1) which has a cooking space (3) in which a food support (5) can be positioned in at least two different insertion levels (I, II, III), and which comprises at least one preparation program and a function program which differs from the preparation program, the is not designed for the preparation of food, comprising, for a preparation program a specific insertion level (I, II, III) for the food support (5) is specified, and by means of a detection and control unit (6, 7) it can be detected whether in there are components in the cooking compartment (3) that should be removed before starting the function program.

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