DE102009003037A1 - Method for carrying out a preparation process for a food - Google Patents

Abstract

The invention relates to a method for carrying out a preparation process for a food with a cooking appliance, wherein the preparation is carried out during a program period of the preparation program, wherein in a power saving mode of the preparation program for one before reaching the end time (t5) of the program period Beginning reducing period is set in comparison to the average heating power of a heater in the normal mode of the cooking program at least reduced average heating power.

Description

The The invention relates to a method for performing a Preparation process for a food with a cooking appliance, in which the preparation during a program period of the preparation program.

From the DE 103 37 326 A1 For example, a method and a control device for controlling a cooking appliance having at least one cooking zone and / or at least one cooking chamber are known. A user can interrupt an ongoing cooking process individually by pressing a button in these embodiments, for example, if he can no longer supervise the cooking appliance. With the interruption, the supply of heating energy is deactivated and a residual heat energy use can take place. If the user can then supervise the cooking appliance again in the following, then the interruption can be canceled by the user again actuating an operating device individually. Compared to embodiments in which only a reduction to a value greater than zero of the heating energy takes place during such a user-defined and individually generated interruption, energy is to be saved during this complete deactivation during the interruption phase.

The However, known method does not allow energy savings during an uninterrupted cooking process, since during the normal drainage phase of the cooking process in normal mode required Heating energy is fed and thus no energy savings can be achieved.

It The object of the present invention is to save energy during the process Preparing food with a cooking device during to allow the completion of a preparation process.

These The object is achieved by a method which has the features according to claim 1, solved.

at a method according to the invention for performing a preparation process for a food with a Cooking device becomes the preparation during a program period of the preparation program. This means that a preparation program characterized by a program duration becomes. In a power saving mode of the cooking program is for a beginning before reaching the end time of the program period Reduction time a compared to the average heat output of Heating device in the normal mode of the preparation program at least reduced average heating power of this heater set. During the course of the preparation program is thus in this energy saving mode compared to the normal mode the average heating power at least reduced, so that in this regard An energy saving can be done. The energy saving takes place thus not by the fact that a preparation process is interrupted and continue after the interruption at the point of interruption and supplied during the interruption no heating energy is, but by that during the constantly expiring Preparation program in the expiration phase targeted the heating power is reduced and thus energy is saved.

Preferably can be provided that the average reduced heating power during the reduction period over the entire Reduction period remains constant. It can also be provided that during the reduction period, the reduced average Heating power is gradually reduced.

Especially it is provided that the reduction period after the start time the program duration is started and until the end time of the Program duration lasts. In such an embodiment thus becomes the start time with the beginning of the program period initially started with the average heat output, as they are provided in normal mode, and only a certain Time after the start time, the reduction period is started. It is particularly advantageous if the reduction period up to the End time of the program duration persists, so that in this context in a particularly advantageous manner, the residual heat of the heater can be used to end the program time this to use for the preparation. So it will be the implementation of the preparation program designed so that not in an interruption phase of the preparation program, but during the expiry Preparation program the reduced average heating capacity in the Reduzier-duration and the residual heat generated thereby is being used. In a particularly advantageous manner, a particular Great energy savings can be achieved when in the reduction time the heater completely is deactivated. Just at the end of the program period, in which then extends the Reduzier-period and until the end time the program duration persists, the preparation process with the residual heat of the switched off heater still too Be led to the end. The reduced average heating power is the same when the heater is completely off Zero, so that in this regard no more heating energy active is fed.

It may also be provided that the program duration begins with the reduction period and ends before the end time. With such an embodiment, the reduction period is almost begun at the beginning of the program period and thus at the start time of the program period. In such an embodiment, an energy saving potential can be achieved in preparation processes in which a relatively high heating energy is required at the beginning of the preparation program, and thus a very high average heating power is fed in. In such an embodiment, the time is then usually extended to a certain state of preparation is reached, however, energy can be saved until then in comparison to reaching this state of preparation in normal mode.

Preferably it is provided that during the reduction period to Reduction of heating power compared to normal mode the heater alternately switched on and off several times, in particular automatically switched on and off alternately several times becomes. In this embodiment, the reduced average Heating power greater than zero, but compared to Operating mode in normal mode smaller than the average there Heating capacity.

Preferably will be in energy saving mode to reduce the average Heating power, the clocking of switching on and off the heater depending on the temperature of one with the heater heatable hob plate, on which preparation container are positionable for the food, performed, and especially changed compared to the normal mode. This means that this clocking of switching on and off in energy-saving mode during the reduction period in comparison to the mode of operation in normal mode is changed. Also through This configuration can be especially in approaches in which the Reduction period starts at the beginning of the program period, the Energy consumption can be reduced. Especially with a quick warm-up of food and a normal mode required to do so high average heat output can thereby be in energy saving mode just this fast heating up at the beginning with a lower one Energy consumption can be achieved.

Preferably is the time length of the reduction period and / or the beginning of the reduction period depending on a selected preparation program determined program specific, in particular, this is automatic program specific determined. This means that a cooking appliance For example, has several different preparation programs. Thus, a first preparation program has specific characterizing Parameters or parameter values. Depending on these will then, for this first preparation program, if so is selected, in particular automatically by the cooking appliance determines how long the reduction period lasts and / or when the reduction period during the expiring preparation program starts. By this configuration, a highly efficient preparation done, which in an individual way a possible great energy savings with optimal preparation results guaranteed. This can be done by the automatic control also very specific and precise and the corresponding Procedure and the respective settings and executions the reduction period can be exact.

Preferably the time length of the reduction period and / or the beginning of the reduction period depends on one already achieved state of preparation of the food during the preparation determined. This can also be essential Advantages in terms of energy savings on the one hand and the achieved the best possible preparation result on the other hand become. For example, it may be provided that during of the cooking program in progress and, depending on this, then the parameters of the reduction period individually be determined. For example, here the core temperature of Garguts be determined by means of a core temperature probe. Also with liquid food can in this regard Temperature values are determined and depending on the Parameters of the reduction period can be determined. It can be provided be that these parameters of the Reduzier-duration dependent from the selected preparation program and / or the already reached state of preparation of the food during the Preparation basically be determined first and then an appropriate implementation takes place. It can, however also be provided that already certain parameters of the reduction period, namely the length of time and / or the beginning the reduction period, in particular depending on the achieved State of preparation of the food during the preparation automatically changed and adjusted again can. Due to this configuration situation-specific whole reacts quickly and accurately to prevailing conditions so that unwanted preparation results are avoided can be. Thus, for example, provided in this regard be that dependent on a achieved state of preparation of the food, the determined beginning of the reduction period in time is moved forward or backward or already done Beginning of the reduction period, which lengthens or shortens them becomes.

Preferably At a selected power saving mode of a cookie program, the time length and the beginning of the reduction period automatically controlled.

Preferably becomes the program period of a cooking program in the cooking appliance stored and with the selection of the preparation program by a user is automatically based on this program duration and given.

It It can also be provided that the program duration of a preparation program by a user is set individually. Such a function is also called a timer function.

It can be provided that the reduction period is greater 1 minute, in particular between 1 minute and 20 minutes becomes. It can also be provided that the time length of the Reduction time less than or equal to 75% of the total program time is set. Depending on the food to be prepared Thus, the time length of the Reduzier-duration substantially vary and possibly even a majority of the program's duration represent, so that a particularly large energy-saving potential consists. In this regard, the consistency of the food, its size and the like corresponding influence. In addition, this is also influenced by how the cooking result should be done. So in this regard different embodiments for liquid and solid media. In addition, just at solid media also the size of the food as well the condition, whether frozen or already pretreated, for example is to have an influence. Only by way of example is this Spot mentions that in a food rice the whole Preparation time and thus also the program duration of a preparation program can be between 20 and 25 minutes. Depending on Whether the rice is now a wholegrain rice or a brown rice can be found in the Regarding the preparation result, the reduction period up to 15 minutes, for example between 10 and 15 minutes. Another example can be called for potatoes for example, a total cooking time between 30 and 40 minutes , depending on whether they are boiled potatoes or jacket potatoes be prepared. Here it can be provided that the reduction period less than 8 minutes at the end of the program period, preferably 5 minutes, is. By switching off the heater during the period of the program Reduction period, the residual heat can be used and the Zuendeführung the preparation of food with appropriate Preparation result can be ensured.

The mentioned examples are not meant to be exhaustive but just to demonstrate a certain span, for a reduction period at the end of the program period is possible. In addition, for example, at Boil water the reduction period at the beginning of the program period which also saves energy. As usual when preparing and heating water already at the beginning of the program period in normal mode, a particularly large heating power and thus heating energy feed takes place, energy can be saved by this energy-saving mode. Although the general duration of time is extended until the water brought to a boil in energy-saving mode compared to normal mode can be, however, in contrast, heating energy can be saved.

Preferably the program duration will be dependent on the energy saving mode from the time of the beginning of the reduction period and / or dependent from the time length of the reduction period via the end time of the program duration in addition to Normal mode extended. In particular, this is done automatically. This means that through the premature reduction of the average Heating power, in particular by the complete deactivation the heater in the Reduzier-Zeitdauer possibly the original program duration, as in normal mode of the would be given to a selected preparation program, is extended in time. This worsens the situation Preparation result not. Nevertheless, energy can be saved, since the heater also in this extension period is no longer activated and only the residual heat continues to be used becomes. Preferably, this extension period is shorter as the reduction period.

Preferably is the time length of the reduction period during the expiration of the reduction period changeable. It can So also be allowed to have an already started Reduction period, which is preferably automatic in length was determined and specified, again adapted situation-specific and can be changed. This can be very fast and to react precisely to changing conditions and thus in addition to the energy savings at any time an optimal preparation result be achieved.

Preferably, the power saving mode may be manually selected by the user. It can also be provided that the user can program the energy-saving mode as the main mode for a specific preparation program, so that with the selection of the preparation program already always automatically the energy saving mode is used.

Preferably is the cooking appliance a hob or oven or a A steamer. A power saving mode for such Domestic appliances are used to reduce energy consumption or to increase the efficiency. It can be provided be that energy saving mode through a control or activated by a combination of operation of several controls can be. The energy-saving mode may be for one power level or apply a program. By reducing the power supply, in particular, a temporary shutdown of the heater, can When activating the function, a reduction in energy consumption and an improvement in the efficiency can be achieved. Especially this can be done at a boil at the beginning of a program period, as can be done, for example, when heating water, or for cooking programs with a defined end of cooking time.

The Power reduction can, for example, by a reduced duty cycle the heater or by a lower surface temperature the hob plate, which formed for example of glass ceramic can be done. This can be an electronic temperature limiter be provided. Furthermore, it is possible in an automatic Program to turn off the heater before the program ends, to use the residual heat of the system for further cooking. An energy saving program is also in combination with a cooking sensor or a Bratsensorik possible. The controlled reduction the average heat output during the reduction period can be controlled by a control unit, for example is stored in a software-controlled module. The timing of In addition, heating device may also be dependent from exceeding a threshold temperature of the Hob plate can be achieved with an electronic limiter. Especially cooking appliances can now also with a clear Energy saving potential can be provided and operated.

Further Features of the invention will become apparent from the claims, the figures and the description of the figures. The above in the description mentioned features and feature combinations and the following mentioned in the description of the figures and / or in the figures alone shown features and feature combinations are not only in the each specified combination, but also in other combinations or used alone, without the scope of the invention to leave. Features of illustrated embodiments can be combined to new designs.

embodiments The invention will be described in more detail below with reference to schematic drawings explained. Show it:

1 a diagram in which the performance is shown depending on a program period according to a first embodiment of the invention;

2 a graph in which the power depends on the duration in normal mode compared to in 1 shown energy-saving mode is shown;

3 an embodiment in which an average heating power during a program period of a cooking program in the energy saving mode is shown; and

4 a diagram in which the average power as a function of time in a normal mode of the preparation program according to 3 is shown.

In The figures are the same or functionally identical elements with the provided the same reference numerals.

In 1 a diagram is shown in which the heating power of a heater of a cooking appliance is shown as a function of time. The cooking appliance can be designed, for example, as a hob or oven. However, it can also be a kettle or the like. In the diagram according to 1 the energy saving mode of the cooking program is shown. The preparation program has a total program time duration, which is between the time t0, which represents the start time, and an in 1 extending end time not shown extends. The entire program period includes a warm-up period. In 1 the duration of the warm-up period extends between times t0 and t1 '. This cooking time period is at the same time the reduction period in which the average heating power is reduced compared to the average heating power in the normal mode of this preparation program. This is achieved in that, in this reduction period, the heating device is automatically switched on and off alternately several times, controlled by a control device. This is indicated by the bars in the illustration 1 shown, wherein only by way of example the three first bars with the reference numerals 1 . 2 and 3 are provided. The bars symbolize the switched-on state of the heating device, in which case in each case a value P1 of the heating power is given. It can be seen that in the exemplary illustration, the periods of time during which the heater is turned on, are shorter than the periods during which the heater is completely off. However, it may also be the case that the respective switch-on durations are longer than the switch-off periods.

In 2 a diagram is shown in which the power of the heater as a function of time in the normal mode of this preparation program, the 1 is shown in the energy saving mode is shown (waveform I ). It can be seen that the warm-up time period is shorter and extends between the times t0 and t1. However, for this entire period of time, the heater is kept active and a corresponding heating power value P2 is required. The average heating power required during the period between times t0 and t1 is greater than the average heating power, as shown in FIG 1 between times t0 and t1 'is required. In the illustration according to 2 Then, at time t1, the heater is turned off because the water has been boiled.

In the diagrams according to 3 and 4 another embodiment is shown. So is in the presentation according to 3 a diagram is shown in which the average heating power in the energy saving mode of another preparation program according to the characteristic II is shown. The preparation program is in turn carried out for a program period which extends between the time t2, which represents the start time, and the time t5, which represents the end time. In the energy-saving mode of this preparation program as shown in FIG 3 For example, during a warm-up period between times t2 and t3, an average heating power according to the value P1 is generated or required. Until the time t3 has been reached, the heating power is reduced and the average heating power between the times t3 and t4 has the value P2. The timing and thus the switching on and off of the at least one heating device between the times t3 and t4 is changed in comparison with the warm-up time period between the times t2 and t3, so that the average heating power is reduced. At the time t4, the heater is completely deactivated, so that between the times t4 and t5, the average required heating power is zero. The reduction period is the period between times t4 and t5, so that in this embodiment, the reduction period starts after the start time t2 and reaches until the end time t5. From the time t4 is thus used until the actual end time t5 of the program period, the remaining heat remaining for the further preparation of the food. It can be provided that in the in 3 shown energy saving mode of the preparation program, the original program period is extended to the time t6 to continue to use the existing residual heat. The time period between times t5 and t6 is the extension period. This can be done automatically by the control unit. However, it may also be provided that this is not carried out and that the program end time is still at time t5.

Compared to showing the energy-saving mode in 3 is in 4 a diagram is shown in which the average heating power of the heater as a function of time in the normal mode of this specific preparation program according to the curve III is shown. Here, when the time t3 is reached, the average heating power is reduced to the value P2. However, there is also a feed of heating energy between the times t4 and t5, so that there is no reduction period in this regard. Thus, the heater is actively operated until the end time t5. The time length of the reduction period and / or the beginning of the reduction period can be determined program-specifically depending on the selected preparation program, in particular automatically determined. Preferably, it can also be provided that the time length of the reduction period and / or the beginning of the reduction period is determined depending on an already achieved state of preparation of the food during the preparation. The program time duration in the energy-saving mode can preferably be extended as a function of the time of the beginning of the reduction period and / or the time length of the reduction period beyond the end time t5 in comparison to the normal mode, whereby this can also be done automatically by the control unit , The time length of the reduction period may also be changed during the expiration of the reduction period.

1, 2, 3

switched Conditions of the heater

P1, P2

heating values

t0 t1, t1 ', t2, t3, t4, t5, t6

timings

I, II, III

curves

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 10337326 A1 [0002]

Claims (15)

Method for carrying out a preparation process for a food with a cooking appliance, wherein the preparation is carried out during a program period of the preparation program, characterized in that starting in a power saving mode of the preparation program for before reaching the end time (t5) of the program period Reduction period is set in comparison to the average heating power of a heater in the normal mode of the cooking program at least reduced average heating power. Method according to claim 1, characterized in that that the reduction period after the start time (t0, t2) of the Program duration is started and until the end time (t5) of Program duration lasts. Method according to claim 1 or 2, characterized that the heater during the entire reduction period is deactivated. Method according to claim 1, characterized in that that the program period has begun with the reduction period is ended before the end time (t5). Method according to claim 4, characterized in that that during the reduction period to reduce the Heating power compared to the normal mode, the heater several times alternately turned on and off, in particular automatically switched on and off alternately several times becomes. Method according to claim 5, characterized in that that in energy-saving mode to reduce the average Heating power, the clocking of switching on and off the heater depending on the temperature of one with the heater heatable hob plate, on which preparation container are positionable for the food carried out is changed, and in particular compared to the normal mode becomes. Method according to one of the preceding claims, characterized in that the time length of the reduction period and / or the beginning of the reduction period depending on program-specific for a selected preparation program is determined, in particular automatically determined. Method according to one of the preceding claims, characterized in that the time length of the reduction period and / or the beginning of the reduction period depending on an already achieved state of preparation of the food during the preparation is determined. Method according to one of the preceding claims, characterized in that when selected energy saving mode of a preparation program the length of time and the The beginning of the reduction period can be set automatically. Method according to one of the preceding claims, characterized in that the program period of a cooking program stored in the cooking appliance and with the selection of the preparation program is automatically specified. Method according to one of claims 1 to 9, characterized in that the program period of a preparation program is set by a user. Method according to one of the preceding claims, characterized in that the reduction period is greater 1 min, in particular between 1 min and 20 min, is set. Method according to one of the preceding claims, characterized in that the time length of the reduction period less than or equal to 75% of the total program time duration. Method according to one of the preceding claims, characterized in that the program duration in the energy saving mode depending on the time (t4) of the beginning of the reduction period and / or the time length of the reduction period in the Compared to normal mode is extended, in particular automatically extended. Method according to one of the preceding claims, characterized in that the time length of the reduction period changeable during the expiration of the reduction period is.