EP0625676B1 - Method for roasting, frying and cooking food - Google Patents

Method for roasting, frying and cooking food Download PDF

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Publication number
EP0625676B1
EP0625676B1 EP19940103438 EP94103438A EP0625676B1 EP 0625676 B1 EP0625676 B1 EP 0625676B1 EP 19940103438 EP19940103438 EP 19940103438 EP 94103438 A EP94103438 A EP 94103438A EP 0625676 B1 EP0625676 B1 EP 0625676B1
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European Patent Office
Prior art keywords
cooking
baking
temperature
roasting
baking oven
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EP19940103438
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German (de)
French (fr)
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EP0625676A2 (en
EP0625676A3 (en
Inventor
Felicitas Dipl.-Ing. Ziegler
Susanne Dipl.Oec.Troph. Van Berkum
Ingrid Dipl.Oec.Troph. Stifter
Uwe Dipl.-Ing. Has
Katrin Dipl.oec.troph. Brüggemann
Anke Bredel
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/08Arrangement or mounting of control or safety devices
    • F24C7/087Arrangement or mounting of control or safety devices of electric circuits regulating heat

Definitions

  • the invention relates to a cooking, roasting and baking process and device for performing this method for household appliances equipped with an oven, the Household appliances with thermal heating devices and possibly in Combination designed with microwave heating devices are.
  • a procedure is from the French published patent application FR-A-24 89 067 and a device for the digital control of electrical baking, roasting and Cooking areas using selectable, depending on the type and weight of the to be treated Well-known temperature-duration programs known.
  • Certain parameters can be specified. Determined from this the control unit temperature constants for, for example, a heating phase, a pre-cooking phase and a weft cooking phase and corresponding time constants.
  • the heat treatment process of the food is initiated by a power circuit is switched on, whereby the heating resistors are supplied with alternating current become.
  • a first setpoint temperature is specified in the temperature control device and compared with the temperature of the furnace determined by a temperature sensor.
  • the temperature control device acts in the sense of a two-point controller, whereby a certain oven temperature control hysteresis is specified.
  • the invention is therefore based on the object, the oven temperature control hysteresis to adapt with the cooking process in an advantageous manner, so that the The cooking result is optimal.
  • the solution of the task according to the invention is characterized in that by the control depending on the default parameters a variable Oven temperature control hysteresis in accordance with stored default values is determined and the temperature control is used as a basis.
  • 1 is an oven temperature control hysteresis Function of the baking or cooking time shown. It is Fluctuation of the temperature amplitude by a set, or the desired average temperature in the oven. The upper or lower fluctuation range is used as the hysteresis referred to the mean by all inertia elements the respective oven temperature control is fixed. Starting situation of today's household appliance ovens is that an optimal setting based on the desired cooking process, the oven temperature control hysteresis not possible. Current state of the art and assumption that the lowest possible control amplitude in general is advantageous for the cooking process and at optimal Cooking results, forms the basis of previous automated Cooking processes in household appliances. So far it is not possible for users of household appliances with ovens, the oven temperature control hysteresis given by the structure of the oven to influence.
  • FIG. 2 is a circuit arrangement for implementation represented the method according to the invention, with the help of which recent research by nutritionists and household scientists the user of household appliances with ovens can be made accessible.
  • Figure 2 shows a controller 1, input options for control, for example the food type 2 the oven operating mode 3 the food weight 4 and a food result specification 5, a sensor system 6 in an oven cooking space and symbolically indicated output of oven temperature control hysteresis 7, 8, 9 and 10 as well the relevant oven cooking chamber of a household appliance 11.
  • the control 1 receives by manual input via the controls 2, 3, 4 and 5 or by selecting the fully automatic Input data that are suitable, an oven temperature rule determine hysteresis as a function of time and the To feed cooking chamber 11.
  • the input option 3 for the oven mode includes the general Possibility of cooking, baking and roasting.
  • the weight of the food can be arranged in the cooking space 11 Weight sensors automatically sent to the control on the other hand, it is conceivable that over household scales a weight is determined using the input option 4 the control is communicated.
  • Cooking result specification 5 can be a roasting, sacking or cooking process with three focal points, the little, medium and strongly mean to be communicated to the controller 1. Will the Cooking result specification not selected, it is assumed that a medium cooking result is desired.
  • Examples of large oven temperature control hysteresis identified by the control are grilling fatter ones Meat types or given in the production of gratins.
  • Examples of medium oven temperature control hysteresis are given when baking small pastries, when baking in Forming when baking sheet cakes.
  • the one with the Control 1 loaded with input data can be operated using a query the sensor 6 in the cooking space 11 in the bidirectional control bus and apply so that the control side in capable of the most advantageous oven temperature control hysteresis for certain input data in the cooking space 11.
  • 2 is symbolically indicated that at least four oven temperature control hysteresis groups in one Oven of a household appliance 11 should be insertable.
  • the symbol 7 means an oven temperature rule hysteresis of ⁇ 3 ° Kelvin
  • symbol 8 an oven temperature rule hysteresis of almost 0 ° Kelvin
  • the symbol 9 a 3-oven temperature control hysteresis of ⁇ 30 ° Kelvin
  • the symbol 10 an oven temperature control hysteresis of ⁇ 10 ° Kelvin.
  • the sensor-powered control is on an oven temperature control hysteresis of ⁇ 10 ° Kelvin programmed if a normal court production is carried out via the input bus selected above a treatment temperature of 100 ° C has been.
  • the control is based on an oven temperature rule on the input side hysteresis of ⁇ 15 ° Kelvin programmed.
  • the time-temperature profile in the stove i.e. the setting of one Oven temperature control hysteresis
  • the oven temperature control hysteresis be changed by the coupling of the temperature sensor in the oven 11 of the Cooker is designed changeable.
  • the coupling can be done by Storage of the temperature sensor changed to a bimetal become.
  • the sensor is then dependent on the temperature of the Bimetallic brought into a position in which its coupling is optimized for the current cooking.
  • a bimetal can move the temperature sensor continuously.
  • Another type of bidirectional traffic from sensors 6 with the controller 1 is given by the fact that more than two Temperature and humidity sensors at appropriate points on the The cooking space 11 can be queried by the controller 1 are.
  • This can be gas sensors, which are advantageously in the exhaust air duct of the oven can be placed with the control 1, being connected by their evaluable data for optimal setting of the oven temperature control hysteresis contribute.
  • Through a meaningful electronic evaluation of the temperature signal by the controller 1 can almost every desired oven temperature control hysteresis is achieved become.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Baking, Grill, Roasting (AREA)

Description

Die Erfindung bezieht sich auf ein Gar-, Brat- und Backverfahren und Vorrichtung zur Durchführung dieses Verfahrens für mit Backofen ausgestattete Haushaltgeräte, wobei die Haushaltgeräte mit thermischen Heizeinrichtungen und ggf. in Kombination dazu mit Mikrowellen-Heizeinrichtungen ausgestaltet sind.The invention relates to a cooking, roasting and baking process and device for performing this method for household appliances equipped with an oven, the Household appliances with thermal heating devices and possibly in Combination designed with microwave heating devices are.

Es ist üblich, die Zufuhr von Wärme in Geräten zur Erwärmung von Gütern in Abhängigkeit einer zu erreichenden Temperatur zu regeln. Insbesondere sind für Haushaltgeräte einfache Zweipunkt-Regler im Gebrauch, wobei die Erwärmung der Gargüter nicht immer optimal sein kann. Um unerwünschte Erwärmungseffekte auszuschließen, bzw. Erwärmungsenergie als Funktionen der Erwärmungszeit den Gargütern möglichst angepaßt zuzuführen, wird die Wärmezuführung in Backöfen durch Temperatursensoren überwacht. Es ist dabei unvermeidlich, daß die im Backofen gemessene Temperatur mit einer Hysterese behaftet ist, d.h. die Temperatur, bei der die Heizung des Herdes eingeschaltet wird, liegt um eine gewisse Schaltdifferenz unterhalb der Temperatur, bei der die Heizung des Herdes wieder ausgeschaltet wird. Diese Tatsache führt zu einer sogenannten Regelamplitude. Ausdruck dieser Regelamplitude ist das Schwanken einer Ist-Temperatur um eine mittlere Backofentemperatur herum. Es hat sich gezeigt, daß Temperaturschwankungen im Backofen eines Haushaltgerätes für unterschiedliche Gargüter keine gleichartigen Auswirkungen haben. Es ist daher nicht unbedingt nur nachteilig, wenn große Regelamplituden im Backofen vorherrschen bzw. ist es generell nicht nur vorteilhaft, wenn eine nahezu konstante Temperatur im Backofen vorherrschend ist.It is common to add heat to heating devices of goods depending on a temperature to be reached to regulate. In particular, are simple for household appliances Two-point controller in use, heating the food cannot always be optimal. To undesirable warming effects exclude, or heating energy as Functions of the heating time adapted to the food as possible supply, the heat supply is carried out in ovens Temperature sensors monitored. It is inevitable that the temperature measured in the oven with a hysteresis is afflicted, i.e. the temperature at which the heating of the Cooker is switched on, is by a certain switching difference below the temperature at which the heating of the Cooker is switched off again. This fact leads to a so-called Control amplitude. The expression of this control amplitude is the fluctuation of an actual temperature around an average oven temperature. It has been shown that Temperature fluctuations in the oven of a household appliance for different Food items have no similar effects. It is therefore not necessarily only disadvantageous if there are large control amplitudes in the oven or it is general not only beneficial if an almost constant temperature in the oven is predominant.

Weiterhin sind aus der französischen Offenlegungsschrift FR-A-24 89 067 ein Verfahren und eine Einrichtung zur digitalen Steuerung von elektrischen Back-, Brat- und Kochstellen mittels wählbarer, auf die Art und das Gewicht des zu behandelnden Gutes abgestellter Temperatur-Zeitdauer-Programme bekannt. Durch Drehung eines Stellknopfes können bestimmte Vorgabeparameter vorgegebenen werden. Daraus ermittelt das Steuerwerk Temperaturkonstanten für beispielsweise eine Ankochphase, eine Vorkochphase und eine Schußkochphase und entsprechende Zeitdauerkonstanten. Nachdem durch die codierten Eingabeinformationen - Gutart und Gewicht - ein auf das zu behandelnde Gut abgestelltes Temperatur-Zeitdauer-Programm vorliegt, wird der Wärmebehandlungsvorgang des Gargutes eingeleitet, indem ein Leistungsschaltkreis eingeschaltet wird, wodurch die Heizwiderstände mit Wechselstrom gespeist werden. In der Temperaturregeleinrichtung wird eine erste Solltemperatur vorgegeben und mit der von einem Temperaturfühler ermittelten Temperatur des Ofens verglichen. Dabei wirkt die Temperaturregeleinrichtung im Sinne eines Zweipunktreglers, wodurch eine bestimmte Backofen-Temperatur-Regelhysterese vorgegeben ist.Furthermore, a procedure is from the French published patent application FR-A-24 89 067 and a device for the digital control of electrical baking, roasting and Cooking areas using selectable, depending on the type and weight of the to be treated Well-known temperature-duration programs known. By rotating one Certain parameters can be specified. Determined from this the control unit temperature constants for, for example, a heating phase, a pre-cooking phase and a weft cooking phase and corresponding time constants. After through the coded input information - type of goods and weight - on the temperature-long-term program to be treated is available The heat treatment process of the food is initiated by a power circuit is switched on, whereby the heating resistors are supplied with alternating current become. A first setpoint temperature is specified in the temperature control device and compared with the temperature of the furnace determined by a temperature sensor. The temperature control device acts in the sense of a two-point controller, whereby a certain oven temperature control hysteresis is specified.

Der Erfindung liegt daher die Aufgabe zugrunde, die Backofen-Temperatur-Regelhysteresen mit dem Garvorgang in vorteilhafter Weise anzupassen, so daß das Garergebnis optimal ausfällt.The invention is therefore based on the object, the oven temperature control hysteresis to adapt with the cooking process in an advantageous manner, so that the The cooking result is optimal.

Die erfindungsgemäße Lösung der Aufgabenstellung ist dadurch gekennzeichnet, daß durch die Steuerung in Abhängigkeit von den Vorgabeparametern eine veränderliche Backofen-Temperatur-Regelhysterese gemäß abgespeicherten Vorgabewerten ermittelt wird und der Temperaturregelung zugrundegelegt wird. The solution of the task according to the invention is characterized in that by the control depending on the default parameters a variable Oven temperature control hysteresis in accordance with stored default values is determined and the temperature control is used as a basis.

Andere vorteilhafte Lösungsvarianten sind den Unteransprüchen entnehmbar. Ein Ausführungsbeispiel der Erfindung ist im folgenden anhand der Zeichnungen näher beschrieben. Es zeigt:

Fig. 1
eine Backofen-Temperatur-Regelhysterese als Funktion der Zeit,
Fig. 2
eine Schaltungsanordnung zur Durchführung des Verfahrens.
Other advantageous solution variants can be found in the subclaims. An embodiment of the invention is described below with reference to the drawings. It shows:
Fig. 1
an oven temperature control hysteresis as a function of time,
Fig. 2
a circuit arrangement for performing the method.

Gemäß Fig. 1 ist eine Backofen-Temperatur-Regelhysterese als Funktion der Back- oder Garzeit dargestellt. Dabei ist das Schwanken der Temperatur-Amplitude um einen eingestellten, bzw. gewünschten Mittelwert der Temperatur im Backofen erkennbar. Als Hysterese wird die obere bzw. untere Schwankungsbreite zum Mittelwert bezeichnet, die durch alle Trägheitselemente der jeweiligen Backofen-Temperaturregelung festgesetzt ist. Ausgangssituation heutiger Haushaltgeräte-Backöfen ist es, daß eine optimale Einstellung, bezogen auf den gewünschten Garungsvorgang, der Backofen-Temperatur-Regelhysterese nicht möglich ist. Bisheriger Stand der Technik und Annahme, daß eine möglichst geringe Regelamplitude generell für den Garungsprozeß vorteilhaft ist und zu optimalen Garergebnissen führt, bildet die Grundlage bisheriger automatisierter Garungsvorgänge in Haushaltgeräten. Bisher war es dem Anwender von Haushaltgeräten mit Backöfen nicht möglich, die durch den Aufbau des Herdes vorgegebene Backofen-Temperatur-Regelhysterse zu beeinflussen.1 is an oven temperature control hysteresis Function of the baking or cooking time shown. It is Fluctuation of the temperature amplitude by a set, or the desired average temperature in the oven. The upper or lower fluctuation range is used as the hysteresis referred to the mean by all inertia elements the respective oven temperature control is fixed. Starting situation of today's household appliance ovens is that an optimal setting based on the desired cooking process, the oven temperature control hysteresis not possible. Current state of the art and assumption that the lowest possible control amplitude in general is advantageous for the cooking process and at optimal Cooking results, forms the basis of previous automated Cooking processes in household appliances. So far it is not possible for users of household appliances with ovens, the oven temperature control hysteresis given by the structure of the oven to influence.

Gemäß Fig. 2 ist eine Schaltungsanordnung zur Durchführung des erfindungsgemäßen Verfahrens dargestellt, mit Hilfe derer neuere Forschungen von Ernährungs- und Haushalts-Wissenschaftlerinnen dem Benutzer von Haushaltgeräten mit Backöfen zugänglich gemacht werden kann. Figur 2 zeigt eine Steuerung 1, Eingabemöglichkeiten für die Steuerung, beispielsweise der Gargutart 2 der Backofen-Betriebsart 3 des Gargutgewichtes 4 und einer Gargut-Ergebnisvorgabe 5, eine Sensorik 6 in einem Backofen-Garraum und symbolisch angedeutete Ausgabe von Backofen-Temperatur-Regelhysteresen 7, 8, 9 und 10 sowie den betreffenden Backofen-Garraum eines Haushaltgerätes 11. Die Steuerung 1 erhält durch Handeingabe über die Bedienelemente 2, 3, 4 und 5 oder durch die Anwahl der Vollautomatik Eingabedaten, die geeignet sind, eine Backofen-Temperatur-Regel hysterese als Funktion der Zeit zu ermitteln und dem Garraum 11 zuzuleiten. Dabei ist beispielsweise die Gargut-Eingabemöglichkeit 2 indirekt mit der Aussage großer, mittlerer und kleiner Backofentemperatur-Hysterese ausgestattet, wobei es am inneren Programm der Steuerung liegt, in wieweit diese Daten aufbereitet und in Verknüpfung mit den verbleibenden Eingabemöglichkeiten gestellt sind. Die Eingabemöglichkeit 3 für die Backofen-Betriebsart beinhaltet die generelle Möglichkeit des Garens, Backens und Bratens. In unmittelbarer Verbindung dazu stehen die Eingabemöglichkeiten für das Gewicht des Gargutes 4 und für die Garergebnis-Vorgabe 5. Das Gargutgewicht kann über eine im Garraum 11 angeordnete Gewichtssensorik automatisch der Steuerung zugeleitet werden, andererseits ist es vorstellbar, daß über Haushaltwaagen eine Gewichtsermittlung erfolgt, die über die Eingabemöglichkeit 4 der Steuerung mitgeteilt wird. Mit Hilfe der Garergebnis-Vorgabe 5 kann ein Brat, Sack- oder Garvorgang mit drei Bewertungsschwerpunkten, die wenig, mittel und stark bedeuten, der Steuerung 1 mitgeteilt werden. Wird die Garergebnis-Vorgabe nicht angewählt, so wird unterstellt, daß ein mittleres Garergebnis gewünscht wird.2 is a circuit arrangement for implementation represented the method according to the invention, with the help of which recent research by nutritionists and household scientists the user of household appliances with ovens can be made accessible. Figure 2 shows a controller 1, input options for control, for example the food type 2 the oven operating mode 3 the food weight 4 and a food result specification 5, a sensor system 6 in an oven cooking space and symbolically indicated output of oven temperature control hysteresis 7, 8, 9 and 10 as well the relevant oven cooking chamber of a household appliance 11. The control 1 receives by manual input via the controls 2, 3, 4 and 5 or by selecting the fully automatic Input data that are suitable, an oven temperature rule determine hysteresis as a function of time and the To feed cooking chamber 11. For example, there is the possibility of entering the food to be cooked 2 indirectly with the statement of large, medium and small oven temperature hysteresis, to what extent it depends on the internal program of the control this data is processed and linked to the remaining ones Input options are provided. The input option 3 for the oven mode includes the general Possibility of cooking, baking and roasting. In the immediate The input options for the weight of the food 4 and for the cooking result specification 5. The weight of the food can be arranged in the cooking space 11 Weight sensors automatically sent to the control on the other hand, it is conceivable that over household scales a weight is determined using the input option 4 the control is communicated. With the help of Cooking result specification 5 can be a roasting, sacking or cooking process with three focal points, the little, medium and strongly mean to be communicated to the controller 1. Will the Cooking result specification not selected, it is assumed that a medium cooking result is desired.

Beispiele für durch die Steuerung ausgewiesene große Backofen-Temperatur-Regelhysteresen sind beim Grillen von fetteren Fleischarten bzw. bei der Herstellung von Gratins gegeben. Examples of large oven temperature control hysteresis identified by the control are grilling fatter ones Meat types or given in the production of gratins.

Beispiele für mittelere Backofen-Temperatur-Regelhysteresen sind gegeben beim Backen von Kleingebäck, beim Backen in Formen, beim Backen von Blechkuchen.Examples of medium oven temperature control hysteresis are given when baking small pastries, when baking in Forming when baking sheet cakes.

Sehr geringe Backofen-Temperatur-Regelhysteresen verlangen verschiedene Trockenvorgänge bei Kräutern, das Züchten von Yoghurtkulturen und Gehenlassen von Hefeteigen. Die mit den Eingabedaten beaufschlagte Steuerung 1 kann mit Hilfe eines bidirekten Steuerbusses die Sensorik 6 im Garraum 11 abfragen und beaufschlagen, so daß ausgabeseitig die Steuerung in der Lage ist, die vorteilhafteste Backofen-Temperatur-Regelhysterese für bestimmte Eingabedaten im Garraum 11 herzustellen. Gemäß Fig. 2 ist symbolisch angedeutet, daß mindestens vier Backofen-Temperatur-Regelhysteresegruppen in einem Backofen eines Haushaltgerätes 11 einbringbar sein sollten. Dabei bedeutet das Symbol 7 eine Backofen-Temperatur-Regel hysterese von ± 3° Kelvin, das Symbol 8 eine Backofen-Temperatur-Regel hysterese von nahezu 0° Kelvin, das Symbol 9 eine 3ackofen-Temperatur-Regelhysterese von ± 30° Kelvin und das Symbol 10 eine Backofen-Temperatur-Regelhysterese von ± 10° Kelvin.Demand very low oven temperature control hysteresis various drying processes for herbs, the cultivation of Yoghurt cultures and yeast dough fermentation. The one with the Control 1 loaded with input data can be operated using a query the sensor 6 in the cooking space 11 in the bidirectional control bus and apply so that the control side in capable of the most advantageous oven temperature control hysteresis for certain input data in the cooking space 11. 2 is symbolically indicated that at least four oven temperature control hysteresis groups in one Oven of a household appliance 11 should be insertable. The symbol 7 means an oven temperature rule hysteresis of ± 3 ° Kelvin, symbol 8 an oven temperature rule hysteresis of almost 0 ° Kelvin, the symbol 9 a 3-oven temperature control hysteresis of ± 30 ° Kelvin and the symbol 10 an oven temperature control hysteresis of ± 10 ° Kelvin.

Neben dem Trocknen von Kräutern und Tees, dem Züchten von Yoghurtkulturen und dem Gehenlassen von Hefeteig ist auch beim Grillen von Geflügel und dem Auftauen sehr fetthaltiger Tiefkühlware eine Backofen-Temperatur-Regelhysterese von ca. ± 3° Kelvin optimal. Die sensorgespeiste Steuerung ist auf eine Backofen-Temperatur-Regelhysterese von ± 10° Kelvin programmiert, wenn über den Eingabebus eine Normal-Gerichtsfertigung oberhalb einer Behandlungstemperatur von 100°C angewählt worden ist. Für das Auftauen normaler und wenig fetthaltiger Tiefkühlware, beispielsweise alle Gemüsearten, ist die Steuerung eingabeseitig bedingt auf eine Backofen-Temperatur-Regel hysterese von ± 15° Kelvin programmiert.In addition to drying herbs and teas, growing Yoghurt cultures and leavening yeast dough is also when grilling poultry and thawing very fatty foods Frozen goods an oven temperature control hysteresis of approx. ± 3 ° Kelvin optimal. The sensor-powered control is on an oven temperature control hysteresis of ± 10 ° Kelvin programmed if a normal court production is carried out via the input bus selected above a treatment temperature of 100 ° C has been. For defrosting more normal and little fatty frozen goods, for example all types of vegetables, the control is based on an oven temperature rule on the input side hysteresis of ± 15 ° Kelvin programmed.

Das Zeit-Temperaturprofil im Herd, also die Einstellung einer Backofen-Temperatur-Regelhysterese, kann durch geeignete mechanische Ausgestaltung des Herdes und durch eine diesbezügliche Ausgestaltung des Reglers in Kombination mit geeigneten elektronischen Sensoren bzw. durch ein in einem Prozessor, der in der Steuerung 1 befindlich ist, abgelegtes Programm beeinflußt werden. So kann beispielsweise die Backofen-Temperatur-Regelhysterese dadurch verändert werden, indem die Ankopplung des Temperatur fühlers im Backofen 11 des Herdes veränderbar gestaltet wird. Die Ankopplung kann durch Lagerung des Temperatur fühlers auf einme Bimetall geändert werden. Der Fühler wird dann abhängig von der Temperatur des Bimetalls in eine Position gebracht, in der seine Ankopplung an den Herd für das aktuelle Garen optimiert ist. Ein Bimetall kann den Temperaturfühler kontinuierlich bewegen. Der Fühler kann schaltend bewegt werden, wenn er auf einer Memoryfeder gelagert ist. Ebenso ist ein Schalten auch durch Ausdehnung von Flüssigkeit oder Wachs in Kapilaren denkbar. Die angeführten Beispiele zur Veränderung der Ankopplung des Temperaturfühlers können durch die Temperatur des Herdes gesteuert werden. Dies übernimmt im vorliegenden Fall die Steuerung 1. Unter Umständen kann es jedoch sinnvoll sein, an dem Bimetall bzw. der Momoryfeder einen elektrischen Heizwiderstand zu montieren, so daß die thermische Ankopplung des Temperaturfühlers an den Herd mit der Heizleistung des Heizwiderstandes eng korrespondiert.The time-temperature profile in the stove, i.e. the setting of one Oven temperature control hysteresis, can be by appropriate mechanical design of the cooker and a related Design of the controller in combination with suitable electronic sensors or by one in a processor, which is located in the controller 1, stored Program can be influenced. For example, the oven temperature control hysteresis be changed by the coupling of the temperature sensor in the oven 11 of the Cooker is designed changeable. The coupling can be done by Storage of the temperature sensor changed to a bimetal become. The sensor is then dependent on the temperature of the Bimetallic brought into a position in which its coupling is optimized for the current cooking. A bimetal can move the temperature sensor continuously. Of the Sensor can be moved switching when it is on a memory spring is stored. Switching is also done Expansion of liquid or wax in capillaries is conceivable. The examples given for changing the coupling of the Temperature sensors can be controlled by the temperature of the cooker become. In the present case, this is done by Control 1. Under certain circumstances, however, it can be useful an electric one on the bimetal or the momory spring Mount heating resistor so that the thermal coupling of the temperature sensor to the stove with the heating power of the heating resistor corresponds closely.

Eine andere Art des bidirektionalen Verkehrs von Sensorik 6 mit der Steuerung 1 ist dadurch gegeben, daß mehr als zwei Temperatur- und Feuchtesensoren an zweckmäßigen Punkten des Garraumes 11 abfragefähig durch die Steuerung 1 plaziert sind. Dazu können Gassensoren, die vorteilhafterweise im Abluftkanal des Backofens plaziert sein können, mit der Steuerung 1 verbunden sein, wobei sie durch ihre auswertbaren Daten zur optimalen Einstellung der Backofen-Temperatur-Regelhysteres beitragen. Durch eine sinnvolle elektronische Auswertung des Temperatursignales durch die Steuerung 1 kann fast jede gewünschte Backofen-Temperatur-Regelhysterese erzielt werden. Besonders kann mit einer elektronischen Regelung der Temperatur nicht nur über bloßes Ein- und Ausschalten eine optimierte Backofen-Temperatur-Regelhysterese erzielt werden, sondern vielmehr kann auch ein gewünschter Gradient bei Temperaturanstieg oder Abfall realisiert werden und für eine sogenannte Fuzzy-Logic-Steuerung brauchbar aufbereitet werden.Another type of bidirectional traffic from sensors 6 with the controller 1 is given by the fact that more than two Temperature and humidity sensors at appropriate points on the The cooking space 11 can be queried by the controller 1 are. This can be gas sensors, which are advantageously in the exhaust air duct of the oven can be placed with the control 1, being connected by their evaluable data for optimal setting of the oven temperature control hysteresis contribute. Through a meaningful electronic evaluation of the temperature signal by the controller 1 can almost every desired oven temperature control hysteresis is achieved become. Especially can with an electronic scheme the temperature not just by switching it on and off an optimized oven temperature control hysteresis is achieved but rather can also be a desired one Gradient can be realized when the temperature rises or falls and usable for a so-called fuzzy logic control become.

Die Vorteile der erfindungsgemäßen Lösung zur Beaufschlagung von Gargütern mit einer den Gargut-Eigenschaften imanenten Backofen-Temperatur-Regelhysterese sind gegenüber bisheriger konventioneller Backofen-Betriebsweise durch schonendes Garen, Braten oder Backen gekennzeichnet, wobei ein Gar-Endergebnis erzielt wird, das weitgehend dem individuellen Geschmack der Anwender entspricht.The advantages of the application solution according to the invention of food with an inherent property Oven temperature control hysteresis are compared to previous ones conventional oven operation through gentle cooking, Frying or baking is marked, with a final cooking result is achieved that largely the individual taste the user corresponds.

Claims (8)

  1. Cooking, roasting and baking method for domestic appliances which are equipped with baking ovens and which are provided with thermal heating elements and optionally also in combination therewith with microwave heating elements, wherein a time/temperature profile is preset by a control (1), which is selectable specific to stock to be cooked, in dependence on preset parameters such as a predetermined mode of baking oven operation, a type of stock to be cooked, a weight of stock to be cooked or a desired treatment result of stock to be cooked, and the preferably fully-automatically elapsing and temperature-regulated cooking, roasting and baking process is monitored by at least one temperature sensor (6), characterised in that a variable baking oven temperature regulating hysteresis is determined in accordance with read-out preset values by the control (1) in dependence on the preset parameters and underlies the temperature regulation.
  2. Cooking, roasting and baking method according to claim 1, characterised in that for low-temperature cooking methods a baking oven temperature regulating hysteresis of about plus or minus 3° Kelvin is presettable by the sensor-supplied control (1), wherein low-temperature cooking methods are, for example, the drying of herbs and tea, the growing of yoghurt cultures and the raising of yeast.
  3. Cooking, roasting and baking method according to claim 1, characterised in that the sensor-supplied control (1) sets a baking oven temperature regulating hysteresis of about plus or minus 3° Kelvin for the grilling of poultry and the thawing of frozen products with high fat content.
  4. Cooking, roasting and baking method according to claim 1, characterised in that the sensor-supplied control (1) sets a baking oven temperature regulating hysteresis of about plus or minus 15° Kelvin for the baking of flat-baked wares and small bakery products.
  5. Cooking, roasting and baking method according to claim 1, characterised in that the sensor-supplied control (1) sets a baking oven temperature regulating hysteresis of about plus or minus 30° Kelvin for the grilling of pork, mutton and gratins.
  6. Cooking, roasting and baking method according to claim 1, characterised in that the sensor-supplied control (1) sets a baking oven temperature regulating hysteresis of about plus or minus 10° Kelvin for normal-weight preparation above a treatment temperature of 100°C.
  7. Cooking, roasting and baking method according to claim 1, characterised in that the sensor-supplied control (1) sets a baking oven temperature regulating hysteresis of about 15° Kelvin for the thawing of normal frozen products with low fat content.
  8. Baking oven which is provided with thermal heating elements and optionally also in combination therewith with microwave heating elements, with a control (1) which in dependence on preset parameters, such as a predetermined mode of baking oven operation, a type of stock to be cooked, a weight of stock to be cooked or a desired treatment result of stock to be cooked, sets a time/temperature profile for a cooking, roasting or baking process and undertakes the corresponding temperature regulation in conjunction with a temperature sensor (6), characterised in that the control (1) variably selects the baking oven temperature regulating hysteresis in dependence on the preset parameters for the temperature regulation in accordance with read-out preset values.
EP19940103438 1993-03-30 1994-03-07 Method for roasting, frying and cooking food Expired - Lifetime EP0625676B1 (en)

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DE19934310235 DE4310235A1 (en) 1993-03-30 1993-03-30 Cooking, roasting and baking processes
DE4310235 1993-03-30

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EP0625676A2 EP0625676A2 (en) 1994-11-23
EP0625676A3 EP0625676A3 (en) 1996-04-17
EP0625676B1 true EP0625676B1 (en) 1999-02-17

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DE4446775B4 (en) * 1994-12-24 2006-07-20 Miele & Cie. Kg Method for compensating the thermal offset drift of sensors
EP0788292B1 (en) * 1996-02-02 2002-01-23 AEG Hausgeräte GmbH Cooker hob having automatic control of cooking process
DE102006048416A1 (en) * 2006-10-12 2008-04-30 BSH Bosch und Siemens Hausgeräte GmbH Temperature control device for a household appliance
EP1994826A1 (en) * 2007-05-25 2008-11-26 Indesit Company S.P.A. An oven for baking foods
RU2471124C2 (en) * 2007-05-25 2012-12-27 Индезит Компани С.П.А. Oven
DE102011017638A1 (en) * 2011-04-27 2012-10-31 BSH Bosch und Siemens Hausgeräte GmbH Method for operating a cooking appliance and control and regulating device for a cooking appliance and cooking appliance
DE102012217350A1 (en) * 2012-09-26 2014-03-27 BSH Bosch und Siemens Hausgeräte GmbH Cooking appliance
DE102016209152A1 (en) * 2016-05-25 2017-11-30 BSH Hausgeräte GmbH Household cooking appliance

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DE3031967A1 (en) * 1980-08-25 1982-03-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD AND DEVICE FOR DIGITAL CONTROL OF ELECTRICAL BACK-BRAT AND COOKING POINTS
US4604518A (en) * 1984-11-16 1986-08-05 General Electric Company Display arrangement for cooking appliance with power control using heater energy counter
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GB2222278A (en) * 1988-08-02 1990-02-28 Turnright Controls Control of electric heating
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DE4310235A1 (en) 1994-10-06
DE59407819D1 (en) 1999-03-25
EP0625676A2 (en) 1994-11-23
ES2130296T3 (en) 1999-07-01
EP0625676A3 (en) 1996-04-17

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