EP4259974A2 - Verfahren zum betreiben eines gargeräts und gargerät - Google Patents
Verfahren zum betreiben eines gargeräts und gargerätInfo
- Publication number
- EP4259974A2 EP4259974A2 EP21824312.9A EP21824312A EP4259974A2 EP 4259974 A2 EP4259974 A2 EP 4259974A2 EP 21824312 A EP21824312 A EP 21824312A EP 4259974 A2 EP4259974 A2 EP 4259974A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating
- cooking chamber
- cooking
- food
- program
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
Definitions
- the present invention relates to a method for operating a cooking appliance and a corresponding cooking appliance with a cooking chamber for accommodating food to be cooked, with an operating device for setting an operating mode of the cooking appliance, with a heating device for heating the cooking chamber, and with a control device for controlling at least the heating device in such that a heating program is carried out after the operating mode has been set.
- the method according to the invention is used to operate a cooking appliance with a cooking chamber for accommodating an item to be cooked.
- cookers, ovens, combination ovens with steam cooking and/or microwave functions are particularly suitable as cooking appliances.
- the cooking chamber can be closed in particular by a door which, when open, allows the food to be cooked to be placed or accessed.
- the cooking appliance is equipped with an operating device for setting an operating mode of the cooking appliance.
- the operating device can be physically arranged on the device, but also detached from it in the form of a remote control or in the form of a portable device with suitable operating software.
- an operating mode can be a setpoint cooking chamber temperature for the interior of the cooking chamber, particularly when the cooking appliance is only equipped with a single heating device.
- An operating mode can also be a combination of a target cooking space temperature and a heating type, or even a temperature and/or heating profile with different target cooking space temperatures and heating devices that are switched on one after the other or in combination.
- the target cooking chamber temperature, the type of heating, the temperature profile and/or the pickling profile can either be set by the user or assigned to an automatic program that can be selected by the user in a program memory.
- An operating mode can also include additional functions that are independent of the heating system, such as humidifying the cooking chamber, switching on a light or turning a grill skewer.
- the cooking appliance is equipped with a heating device for heating the cooking chamber.
- a heating device can be a radiant heater such as a top or bottom heater, but also a convection heater in which a fan distributes the radiant heat generated by a ring heater in the cooking chamber, but also include other types of heating such as microwave radiation or steam.
- a control device is used at least to control the heating device in such a way that a heating program is carried out after the operating mode has been set.
- the control device can be a physical part of the cooking appliance, but it can also be partially arranged in a portable appliance or on an external program memory.
- the heating-up program is part of a cooking program and is usually carried out at the beginning of the program.
- a heating-up program is understood to mean, in particular, a program in which one or more heating devices for heating up the cooking chamber, in particular from a starting cooking chamber temperature below a predetermined desired cooking chamber temperature to a desired cooking chamber temperature, are controlled.
- a starting cooking chamber temperature is, in particular, a temperature that is present in the cooking chamber at the start of the heating process.
- the starting cooking chamber temperature essentially corresponds to the temperature of the surroundings of the cooking appliance if the cooking appliance has not been in operation for a long period of time.
- the heating program ends in the Usually when the set cooking cabinet temperature or the one assigned to the program is reached. However, it can also take place in the middle of a cooking program if the cooking program involves cooling down and then heating up the cooking chamber again.
- the method is characterized in that at least after an operating mode of the cooking appliance has been set, a load status of the cooking chamber is determined by means of a monitoring device. A heating program is then selected from a plurality of heating programs stored in particular in the control unit for heating the cooking chamber, depending on the determined load status of the cooking chamber, and carried out.
- the determination of the load status includes at least a distinction as to whether or not there is food to be cooked in the cooking chamber.
- the method according to the invention makes it possible to automatically detect the loading status of the cooking chamber and to adapt the heating process to the respective loading status.
- the load status can be classified, for example, as at least one of the two statuses “food to be cooked present” or “food not to be cooked present”. In this way, operating errors that would lead to a deterioration in the cooking result are avoided.
- the plurality of heat-up programs preferably includes at least one with a low heat output and one heat-up program with a high heat output, in particular designed as a rapid heat-up program.
- a low heat output is to be understood in particular as heating using only the heat sources provided for the selected operating mode or possibly also fewer heat sources.
- a high heat output is to be understood in particular as a rapid heating program in which more heat sources than those provided for the selected operating mode, preferably essentially all heat sources that are available or can be operated with the specified connected load of the cooking appliance, are used.
- a circulating air heater and a grill heater with a maximum available heat output are understood in the case of a rapid heating-up program.
- a rapid heating program is preferably only carried out with essentially maximum heating power if it has been determined by means of the monitoring device that there is no food to be cooked in the cooking chamber. If, on the other hand, there is already food to be cooked, in particular food from a first class of food to be cooked, and if such food is detected by the monitoring device, a heating program that is gentle on the food to be cooked and has a low heat output should be started automatically. The user can also be signaled that the food to be cooked is in the cooking chamber, so that he can use the food to be cooked to carry out the rapid heat-up program can be found in the cooking compartment. Food to be cooked in a first class of food to be cooked is food that is rather sensitive to being heated up with a high heat output. These can be souffles, baked goods or similar items to be cooked. A list of items to be cooked in the first class of items to be cooked can be stored in a memory of the monitoring device.
- a heating program with an average heat output is preferably carried out by the control device.
- a heat-up program with medium heat output means a heat-up program in which the heat output of the selected radiators is lower than in a rapid heat-up program with maximum heat output and higher than in a heat-up program with low heat output.
- the heating sources and additional heaters provided for the selected operating mode are switched on, with the additional heaters not being operated with the maximum possible heat output, but preferably only with a proportion of 20 to 50% of the maximum possible heat output.
- the circulating air heating is also operated at low power as an additional heating element, if this has not already been selected as the operating mode.
- a list of items to be cooked in the second class of items to be cooked can also be stored in a memory of the monitoring device.
- An essential feature of food in the second class of food to be cooked is that this food does not necessarily require a heating program with a low heat output, as is the case with frozen food, for example.
- An item to be cooked would in particular require a heating program with a low heat output if it could be damaged or adversely affected in some other way by a heating process with a higher heat output. In the following, such a cooking item is also referred to as a critical cooking item.
- the food to be cooked is preferably first classified for the distinction “critical/uncritical” by evaluating at least one image recorded by the imaging device, in particular at least the type of food to be cooked being determined. If the item to be cooked is classified as critical, the heating program is preferably carried out with a low heat output. In the event that the food to be cooked is classified as uncritical, a moderate heating program is preferably carried out, in which in particular more heat sources than those provided for the selected operating mode, but not all available heat sources—such as, for example, in a rapid heating program—are used. In this way, the heating-up time can be reduced without damaging the food.
- Whether a particular food is critical or not critical can be determined empirically determined and stored in the cooking appliance or for the cooking appliance so that they can be called up. When determining whether a specific food to be cooked is critical or not, in addition to the criterion deep-frozen or fresh, the quantity of food to be cooked, the presence of a food container and/or the height of a food support carrying the food to be cooked in the cooking chamber can also be taken into account.
- the monitoring device is particularly suitable and designed to detect a lack of food to be cooked in the cooking chamber even if there are empty food containers or accessories of the cooking appliance without food to be cooked, such as grids, baking trays, roasters, pans and/or other food containers or food supports.
- the monitoring device can include, for example, a high-frequency sensor device that is suitable and designed to analyze high-frequency radiation sent into the cooking chamber and/or received from the cooking chamber and, in particular, high-frequency radiation reflected from a cooking chamber not loaded with food to be cooked from a cooking chamber loaded with food to be cooked to distinguish reflected high-frequency radiation.
- the high-frequency sensor device can be suitable and designed to generate high-frequency radiation and send it into the cooking chamber.
- the monitoring device preferably includes at least one image recording device, with the determination of the load status including the evaluation of at least one image of the cooking chamber recorded by the image recording device.
- An image of the cooking chamber provides particularly meaningful measurement data about its condition, so that a particularly precise determination of the loading state of the cooking chamber is possible.
- an image is understood to mean any type of data record that is recorded by means of an optical sensor included in the image recording device, which records data on color values of individual measurement points and/or measurement areas and makes them available in particular for the purpose of evaluation.
- a color value is understood here in particular as a coordinate of a color in a multidimensional color space (e.g. RGB, CIELAB, CIEYIIV, etc.).
- the method according to the invention can be implemented or retrofitted inexpensively, for example by a simple software update.
- the cooking appliance, the monitoring device and/or the image recording device preferably has an evaluation device with which the image recorded of the cooking chamber can be used Determination of the loading condition is evaluated.
- the evaluation can be carried out at least partially externally, for example on an external server or in a cloud, in which case the cooking appliance, the monitoring device and/or the image recording device can be equipped with appropriate communication interfaces for this purpose.
- the image shows either a cooking chamber floor, an empty baking tray, an empty grid and/or other empty accessories, or at least also food to be cooked.
- an analysis of the image can be used to classify food recognized in the cooking chamber in more detail, with properties of the food, such as the type of food and/or the amount of food, being determined and possibly taken into account during the heating process.
- the evaluation preferably includes comparing the image and/or one or more features of the image with references in a database, in particular with a classification of the image and/or one or more of its features using statistical and/or analytical methods, such as analysis of variance and /or a (support vector) regression.
- the evaluation can include a classification of the image and/or one or more features of the image using an artificial neural network, in particular using an artificial neural network trained in advance with a large number of references and/or using deep learning. Subsequent to the evaluation, specific control signals for controlling the heating device can be transmitted to the control unit depending on the result of the evaluation.
- the determination of the loading status of the cooking space includes at least the detection of a type of food, a quantity of food, a food container and/or a height position of a food support carrying the food in the cooking space.
- a heating program tailored to the respective load situation can be selected, for example, in which negative effects on the food to be cooked are at least partially mitigated.
- a loading level or insertion level of the food support can be detected, for example.
- a heating program could be selected and carried out in which the top heat source is not operating. Furthermore, a gentler heating-up program can be set for smaller quantities of food than for larger quantities of food, for example. On the other hand, a heating-up program can be carried out with a higher heat output if it is recognized that the food to be cooked is in a closed casserole dish or in another closed food container.
- the load status of the cooking chamber is determined again depending on the opening and subsequent closing of a cooking chamber door. Since the load status is usually changed when the cooking chamber door is open, linking the determination of the load status to an opening or closing process of the cooking chamber door ensures that the current load status is always recorded, in particular without relying on ongoing monitoring of the load status to have to be
- the cooking appliance is preferably equipped with a door contact switch or another door sensor.
- the load status can be determined after or after a certain period of time has elapsed after the cooking chamber door has been opened and/or closed. If the load status changes, the heating program may be changed.
- the determined load status of the cooking chamber is used to check the plausibility of program steps of a control program that controls the cooking appliance.
- the loading condition determined by the monitoring device is stored in the control device.
- the plausibility check of program steps can thus be carried out directly, without the load status having to be re-determined by the monitoring device. It can thus be ensured, for example, that intended requests from the cooking appliance are only output to the user if they are plausible in the context of the current loading situation. In this way, the risk of operating errors is further reduced.
- a prompt to “place the food to be cooked” should not be issued if the food to be cooked is already in the cooking chamber, while a prompt to “remove the food to be cooked” is, for example, irrelevant if there is no food at all in the cooking chamber.
- the control program can be a heating program.
- the control program can be a cooking program for actually cooking the item to be cooked and/or a follow-up program to be carried out after the cooking program.
- the cooking appliance according to the invention comprises a cooking chamber for accommodating a food to be cooked, a heating device for heating the cooking chamber and a control device for controlling at least least of the heating device. It is characterized in that it has a monitoring device for determining the load status of the cooking chamber and is suitable and designed to carry out a method according to one of claims 1 to 7.
- the cooking appliance according to the invention results in the same advantages as those of the method according to the invention.
- FIG. 1 shows a cooking appliance according to the invention
- FIG. 2 shows a program flow chart of an embodiment of the method according to the invention.
- FIG. 1 shows a cooking appliance 2 according to the invention with a cooking chamber 4 for receiving an item to be cooked 6.
- An operating device 24 is used to set an operating mode of the appliance.
- a heating device for heating the cooking chamber 4 is provided, which in the present embodiment comprises a circulating air heater in the form of a fan 8 equipped with a ring heater, a top heat radiator 10 and a bottom heat radiator 12 below the cooking chamber floor.
- a control device 14 is used, among other things, to control the heating device.
- the cooking appliance 2 also has an image recording device 16 in the form of a camera as a monitoring device, which is arranged outside an insulation of the cooking chamber 4 and can record images of the cooking chamber 4 through a transparent window.
- control device 14 also serves as an evaluation device that is configured to evaluate the image taken of the cooking chamber 4 to determine the load status.
- the determination of the load status includes a distinction as to whether the food to be cooked 6 is in the cooking chamber 4 or not.
- the control device 14 controls the heating device using a heating program for heating the cooking chamber 4, which was selected from a plurality of stored heating programs depending on the load status determined. By automatically detecting the load status and adapting the heating process to the respective load status, it can be ensured that the heating does not have a negative effect on the cooking result.
- the evaluation can be carried out at least partially externally, for example on an external server or in a cloud.
- the evaluation device is preferably suitable and designed to recognize a type of food, a quantity of food, a food container and/or a height position h of the food support 18 in the cooking space 4 based on the image recorded from the cooking space 4 . If, for example, it is recognized that the food support 18 loaded with food to be cooked 6 is on the highest load level and is therefore close to the top heat radiator 10, a specially adapted heating program could be set and carried out in which the top heat radiator 10 is not operated in order to not to heat the food 6 too much from above.
- the evaluation device is preferably configured in such a way that if food 6 to be cooked is detected in the cooking chamber 4, a distinction is also made as to whether the food to be cooked 6 in the cooking chamber 4 urgently requires a heating program with low heat output, i.e. whether it is critical or non-critical. In this way, it is automatically recognized whether a heating program with a higher heat output can be carried out and thus time can be saved or not.
- the load status of the cooking chamber 4 is determined again depending on the opening and/or closing of a cooking chamber door 20 . In this way, the current load status can always be identified without having to resort to ongoing monitoring of the cooking chamber 4 .
- FIG. 2 illustrates the sequence of an embodiment of the method according to the invention, as it is carried out, for example, by the cooking appliance shown in FIG.
- an operating mode of the cooking appliance 2 is set (step S1), whereupon the load status of the cooking chamber 4 is checked for the presence of food 6 (step S2). If it is recognized that there is no item 6 to be cooked in the cooking chamber 4, a rapid heating program is started using essentially all available heat sources (step S3). If, on the other hand, the presence of food to be cooked 6 is detected in the cooking chamber 6, a further check is carried out to determine whether the food to be cooked 6 is critical, ie whether a heating process with a low heat output is absolutely necessary (step S4).
- the heating program is carried out with a low heat output, for example using only the heat sources provided for the operating mode set in step S1 (step S5). If the food to be cooked 6 has been classified as uncritical, a moderate heating program is carried out (step S6), in which in particular more heat sources than those provided for the selected operating mode, but not all available heat sources—such as in the rapid heating program—are used.
- step S7 the determination of the load state described above (step S2 including subsequent steps) is carried out again.
- the method according to the invention is even more process-reliable, since it is possible to react to a change in the loading condition. For example, if no food 6 is detected in the cooking chamber 4 before the start of the heating process, a rapid heating program can be started. Should it happen that, e.g. due to an operator error, food 6 is placed in the cooking chamber 4 while the rapid heating program is running, this will be recognized by the monitoring device. The rapid heating program can then be aborted before the food 6 is damaged. Furthermore, a heating program suitable for the item to be cooked 6 can be started for further heating.
- step S8 If the target cooking chamber temperature is reached (step S8), the actually selected cooking program can be started (step S9).
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
- Electric Ovens (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020133133.9A DE102020133133A1 (de) | 2020-12-11 | 2020-12-11 | Verfahren zum Betreiben eines Gargeräts und Gargerät |
| PCT/EP2021/083589 WO2022122478A2 (de) | 2020-12-11 | 2021-11-30 | Verfahren zum betreiben eines gargeräts und gargerät |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4259974A2 true EP4259974A2 (de) | 2023-10-18 |
| EP4259974C0 EP4259974C0 (de) | 2024-11-20 |
| EP4259974B1 EP4259974B1 (de) | 2024-11-20 |
Family
ID=78851284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21824312.9A Active EP4259974B1 (de) | 2020-12-11 | 2021-11-30 | Verfahren zum betreiben eines gargeräts und gargerät |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20240093875A1 (de) |
| EP (1) | EP4259974B1 (de) |
| KR (1) | KR20230118903A (de) |
| CN (1) | CN116601438A (de) |
| DE (1) | DE102020133133A1 (de) |
| ES (1) | ES3001130T3 (de) |
| PL (1) | PL4259974T3 (de) |
| WO (1) | WO2022122478A2 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4339516A1 (de) * | 2022-09-16 | 2024-03-20 | Miele & Cie. KG | Verfahren zum betreiben eines gargeräts |
| BE1030884B1 (de) * | 2022-09-16 | 2024-04-15 | Miele & Cie | Verfahren zum Betreiben eines Gargeräts |
| CN116880623A (zh) * | 2023-06-30 | 2023-10-13 | 广东美的厨房电器制造有限公司 | 烹饪设备及其控制方法、装置、存储介质和程序产品 |
| DE102023127495A1 (de) * | 2023-10-09 | 2024-12-19 | Miele & Cie. Kg | Verfahren zum Betreiben eines Gargeräts |
| DE102023127583A1 (de) * | 2023-10-10 | 2024-11-21 | Miele & Cie. Kg | Verfahren zum Betreiben eines Gargeräts |
| DE102024202085A1 (de) * | 2024-03-06 | 2025-09-11 | BSH Hausgeräte GmbH | Verfahren zum Betreiben eines Haushaltsgerät und Haushaltsgerät |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8706283U1 (de) * | 1987-05-01 | 1987-06-11 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Backofenheizung |
| JPH0579635A (ja) * | 1991-09-25 | 1993-03-30 | Matsushita Electric Ind Co Ltd | 加熱調理器 |
| US7009147B1 (en) * | 2005-01-12 | 2006-03-07 | Maytag Corporation | Operational modes for a cooking appliance employing combination cooking technology |
| DE102008013995A1 (de) * | 2008-03-13 | 2009-09-24 | Rational Ag | Verfahren zum Bereitstellen eines intelligenten Mensch-Maschinen Interface bei Geräten |
| ATE487095T1 (de) * | 2008-05-23 | 2010-11-15 | Electrolux Home Prod Corp | Automatik-backofen mit dampferzeugungssystem |
| EP2468101B1 (de) * | 2010-12-23 | 2019-04-17 | Miele & Cie. KG | Verfahren zum Betreiben eines Gargerätes und ein Gargerät |
| DE102012217350A1 (de) * | 2012-09-26 | 2014-03-27 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerät |
| DE102014217637A1 (de) * | 2014-09-03 | 2016-03-17 | BSH Hausgeräte GmbH | Heizen eines Garraums eines Haushalts-Gargeräts |
| US9689576B2 (en) * | 2014-10-14 | 2017-06-27 | Haier Us Appliance Solutions, Inc. | Oven appliance and a method for operating an oven appliance |
| EP3056821A1 (de) * | 2015-02-10 | 2016-08-17 | Electrolux Appliances Aktiebolag | Nahrungsmittelofen für den Haushalt und Verfahren zum Aufwärmen eines Nahrungsmittels in einem Nahrungsmittelofen für den Haushalt |
| DE102019201332A1 (de) * | 2019-02-01 | 2020-08-06 | BSH Hausgeräte GmbH | Haushalts-Gargerät und Verfahren zum Betreiben eines Haushalts-Gargeräts |
| CN110887069A (zh) * | 2019-11-20 | 2020-03-17 | 广东美的厨房电器制造有限公司 | 烹饪设备、烹饪设备的控制方法及计算机可读存储介质 |
-
2020
- 2020-12-11 DE DE102020133133.9A patent/DE102020133133A1/de not_active Withdrawn
-
2021
- 2021-11-30 CN CN202180083018.0A patent/CN116601438A/zh active Pending
- 2021-11-30 EP EP21824312.9A patent/EP4259974B1/de active Active
- 2021-11-30 US US18/256,644 patent/US20240093875A1/en active Pending
- 2021-11-30 PL PL21824312.9T patent/PL4259974T3/pl unknown
- 2021-11-30 KR KR1020237022922A patent/KR20230118903A/ko active Pending
- 2021-11-30 ES ES21824312T patent/ES3001130T3/es active Active
- 2021-11-30 WO PCT/EP2021/083589 patent/WO2022122478A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| ES3001130T3 (es) | 2025-03-04 |
| EP4259974C0 (de) | 2024-11-20 |
| PL4259974T3 (pl) | 2025-03-31 |
| WO2022122478A2 (de) | 2022-06-16 |
| EP4259974B1 (de) | 2024-11-20 |
| KR20230118903A (ko) | 2023-08-14 |
| DE102020133133A1 (de) | 2022-06-15 |
| CN116601438A (zh) | 2023-08-15 |
| WO2022122478A3 (de) | 2022-07-28 |
| US20240093875A1 (en) | 2024-03-21 |
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