EP2604742B1 - Operating element for a domestic appliance, operating unit for such a domestic appliance with such an operating element and domestic appliance with such an operating unit and such an operating element - Google Patents

Description

Operating element for a household appliance, operating unit for such a household appliance with such a control element and household appliance with such an operating unit and / or such a control element

The present invention relates to an operating element for a particular stationary household appliance, that is, for example, a washing machine, a dishwasher, and the like. The control element comprises a rotationally movable on an axis rotary knob and by changing the orientation of the knob can be different functions of each household appliance, in a washing machine so for example, different washing programs select.

Such controls are known per se in household appliances of the type mentioned. So shows, for example, the DE 102 38 066 A1 a control element, which has at least one rotary knob and a cooperating detent wheel with detent grooves and a detent spring, wherein the detent wheel, detent grooves and detent spring form a detent to predefine in this way defined positions of the rotary knob, so that different functions can be selected with the control element. The EP 1 865 526 A1 mentions for a special program selector switch for household appliances a profiled peripheral surface with which a spring-loaded pin engages, resulting in detent positions corresponding to the profiling of the peripheral surface.

From the DE 198 24 1491 A is a turntable for electrical or electronic devices is known in which a controllable locking and locking device is provided to provide a stop for the rotational movement. In the locking and locking device is a mechanical device, namely a pawl arrangement, which is controllable so that act differently sized spring forces to produce different strong tactile clicks.

From the EP 1 513 038 A1 an operating device for a combined heating and ventilation device for motor vehicles is known. The operating device allows the selection of different functions, that is, for example, a temperature preselection, the preselection of a desired value for a fan speed or the preselection of different orientations of the air flow respectively generated in the vehicle. For the selection of the different functions, first the actuation of a corresponding switching element is required. This corresponds in the broadest sense to a program selection. Within the respective program, ie temperature, fan speed and air flow direction, with a rotary knob a fine selection is possible, so for example a fine selection with respect to the respective Temperature or in terms of fan speed. If, for example, the fan speed only a few settings are provided, generates an electronics according to a predetermined resistance profile acting on the knob force feedback, so that arise for the knob two, three or more tactile "locking positions", each of which different stages Fan speed correspond. The interior temperature of a motor vehicle is usually relatively finely granular adjustable, at least one individual temperature values can usually be selected in a conventional temperature spectrum. For the operating device of EP 1 513 838 A1 this means that if a temperature setting is selected on the knob, a resistance profile provided for the temperature adjustment, which is normally different from the resistance profile for specifying the fan speed, acts. The same applies mutatis mutandis to the specification of different Luftrichtungsströmungen.

The EP 1 349 050 A2 discloses an operating element with a rotationally movable on an axis knob, wherein the axis of an electromagnetically acting resistance device is in operative connection, wherein the resistance device, each having a resistance profile of a plurality of stored in a memory resistance profiles for providing different power or raster experiences in dependence from the respective orientation of the knob. The US 2004/257339 A1 discloses a similar operating element, however, it is not provided in this operating element that different resistance profiles are stored in the memory for selection.

An object of the invention, starting from this prior art is to provide an operating element for a household appliance of the type mentioned, with which the operation of the respective household appliance is simplified and, for example, for visually impaired or blind possible.

This object is achieved by an operating element for a particular stationary household appliance, so for example a washing machine, a dishwasher and the like, with the features of claim 1. In this case, it is provided that the operating element comprises a rotary knob which is rotatably movable on an axis, wherein an electromagnetically acting resistance device is in operative connection with the axis. The resistance device can be acted upon by a respective one of a plurality of resistance profiles stored in a memory. Depending on the respective resistance profile and depending on a respective orientation of the rotary knob, the resistance device is activated so that, for example, orientations with a rather greater influence of the resistance device and other orientations with a rather smaller influence of the resistance device result and overall for the user Pressing the knob noticeable detent positions resul animals. The operating element proposed here is also characterized in that at least individual resistance profiles define more than two different resistance values. If it is assumed that two resistance values are sufficient for "normal" detent positions, namely a first resistance value at which the resistance device exerts a noticeable influence on the mobility of the rotary knob, and a second resistance value at which the resistance device has little or no influence the resistance device exerts, with the positions at which according to the resistance profile, the resistance device exerts no or only the reduced influence, the respective detent positions. For a user who has the respective Domestic appliance will operate quickly, without having to visually control the respective position of the turret, but especially for visually impaired users, such locking positions are not sufficient, because a first detent position is indistinguishable from a second detent position. For a control unit in a motor vehicle as in the EP 1 513 038 A1 described, this is of no major importance, because the same detent positions for example, a specification of a temperature setpoint or a desired speed for the fan are in terms of operability of the heating and ventilation of the motor vehicle no obstacle, because the set temperature is usually displayed separately, so that the User in so far as his checked on the knob preselection can check. Even if no such indication were given, the user in his vehicle notices an increase in temperature or an increase in the speed of the fan so that it can take corrective action in the event of a mis-selection. In a household appliance, such as a dishwasher or a washing machine such conditions are not given. Normally, the user can not acoustically or otherwise distinguish whether a program started, for example, for a washing machine corresponds to its selection, because, for example, differences in the processing of a respective washing machine program will take some time or may not be until the end of the respective washing machine program can adjust. Even a visual indication of a function selected with the rotary knob functionality may be of little help to visually impaired users and worthless to blind users. In addition, such a display device, which could be formed in principle in the form of an LCD display or a seven-segment display, requires space on the operating device, which can be used elsewhere in the use of an operating element as described here and below.

By more than two, so three or more different resistance values in at least individual resistance profiles so clearly distinguishable positions for the knob during operation of the respective household appliance with the control element can be defined.

Advantageous embodiments and further developments of the invention will become apparent from the following subclaims. Here used backlinks indicate the further development of the subject matter of the main claim by the features of the respective subclaim. They should not be construed as a waiver of obtaining independent, objective protection for the feature combinations of the dependent claims. Furthermore, with a view to an interpretation of the claims in a closer specification of a feature in a subordinate claim, it is to be assumed that such a restriction does not exist in the respective preceding claims.

In a particular embodiment of the operating element, an operating logic is provided in the reading direction. This can be considered, for example, when a selection is made with the control element in a selection menu depicted by a first resistance profile and this selection can then be further specified in a hierarchically second selection menu. Also for the second selection menu is an associated resistance profile, ie a second resistance profile provided. Here it would be unfavorable if the user, starting from a current position of the rotary knob, would have to turn it back counter to the previous direction of rotation in order to be able to reach all the selection options of the second selection menu. An operating logic in the reading direction therefore means that the second selection menu belonging to the second resistance profile begins with a respective current position of the rotary knob. The user must therefore operate the knob in principle only in one direction and above all not expect that starting from a current position of the knob when selecting a lower hierarchical menu selection options in this menu in both directions of rotation of the knob are available, so that for the user then the operation of the respective household appliance would be difficult. If in each case the resistance profile of a previously selected hierarchically lower-lying selection menu begins at the then current position of the rotary knob, the user can be sure that all selection options available in this selection menu are available if the previous direction of rotation of the rotary knob is continued. If the resistance profile then in each case defines different resistance values, in particular more than two different resistance values, the user can identify the latching positions attributable to the respective resistance values and then optionally also actuate the rotary knob against the previous direction of rotation if the user can see from the latching positions, that a desired selection position has already been passed.

In a particular embodiment of the operating element, it is provided that at least one resistance profile defines, at least in sections, continuously or discontinuously increasing resistance values. With continuously increasing resistance values, the force exerted by the resistance device on the axis of the rotary knob increases continuously with increasing rotation of the rotary knob, so that the respective position of the rotary knob is easily identifiable by the respectively acting force. In the case of discontinuously increasing resistance values, different detent positions result, for example, with higher resistance values unscrewing the rotary knob from the respective detent position against a higher force of the resistance device, so that the detent position can easily be recognized as a particularly strong detent position. The same applies mutatis mutandis when the knob is in a position shortly before such a detent position. Then, the force acting due to the resistance means can be reduced, so that the respective locking position is particularly easy to reach, with a less strong detent position, the return of the force acting due to the resistance device is less force than in a larger detent position, so that acting as a kind of attraction effect at larger detent positions is stronger than at smaller detent positions.

In a further particular embodiment of the operating element, it is provided that at least individual resistance profiles are associated with an acoustic profile and that the acoustic profile comprises tone values or the like correlated with the respective resistance values of the associated resistance profile, wherein at least individual tone profiles define more than two different tone values. In such an operating element, not only a haptic feedback of the respective operating action results due to the resistance values of the respective resistance profile and thus possibly defined locking positions, but also an acoustic feedback that makes it easier for the user again, each correlated with the position of the knob operator action to identify exactly.

In a further embodiment of the operating element can be provided that in each resistance profile defining at least one stop, the resistance means for rotating the knob in the direction of the stop is controlled when the stop is exceeded due to actuation of the knob by the user. In this way, in each case a defined end position for an orientation of the rotary knob results in such resistance profiles. In addition, the user detects an overshoot of the attack on the increasing force of the resistance device and the automatic rotation of the rotary knob in the direction of the stop, so based on an automatic reverse rotation of the rotary knob.

In an overall advantageous development, the operating element comprises a force-generating means acting on the rotary knob for generating a tactile or haptic-detectable feedback of a selection. As a result, for example, after an operator action has been taken, the rotary knob is put into a vibratory motion or a clearly perceptible jerk, so that the user notices on the basis of this tactile feedback that his selection has been recognized by the controller and thus taken over for further processing. The tactile or haptic perceivable feedback is advantageously activated after the lapse of a predetermined waiting time, which is preferably in the range of 1 to 4 seconds. Overall, the force generating means is controlled so that it can also be independent of the above predefined latching positions. As a force generating means is preferably an electromagnetically acting means, such as lifting magnet with a movable piston used.

As electromagnetically acting resistance means or force generating means is an electric motor, in particular a stepping motor, into consideration. Electric motors, especially stepper motors, can be easily controlled with a respective resistance profile.

The invention further relates to a control unit for a particular stationary household appliance with an operating element as described here and below and at least one selection device, wherein by an operation of the selector a resistance profile, with which the resistance means of the control element is acted upon selectable. As a selection device is a group of switching elements or the like into consideration. Depending on the operation of the selection device results in a basic functionality of the respective household appliance, which is displayed in a selection menu. The selection menu in turn includes a resistance profile, with which the resistance device of the operating element is acted upon. The selection device can also be the operating element encompassed by the operating unit or a further operating element as described here and below. Then the selection of a basic functionality by turning the knob of the control or the other control element takes place.

The operating unit comprises a processing unit in the form of or in the manner of a microprocessor and a memory. In the memory, the respective resistance profiles are stored retrievable. In addition, a control program is loaded into the memory during operation of the household appliance, which controls the resistance device of the operating element in dependence on the respective resistance profile and a respective orientation of the rotary knob. The control program is also intended to detect operator actions of the user by pressing the knob, so for example, a selection of a specific functionality of the household appliance according to a rotation of the knob caused therefor. The respective selection of the functionality of the household appliance can be displayed by an addition to the rotation of the knob additional operating action, so for example, a pressure on the knob or pressing a dedicated additional switching element.

Overall, the invention thus also relates to a household appliance, in particular a stationary domestic appliance of the type mentioned, with such an operating unit and / or at least one such operating element.

The invention is preferably implemented in software. The invention is thus on the one hand also a computer program with program code instructions executable by a computer and on the other hand a storage medium with such a computer program as well as finally an operating unit in its memory as means for applying a resistance device of a control element with a resistance profile with more than two different resistance values Computer program is loaded or loadable. An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Corresponding objects or elements are provided in all figures with the same reference numerals. The or each embodiment is not to be understood as limiting the invention. Rather, in the context of the present disclosure, individual modifications and modifications are possible by combining or modifying individual in combination with the described in the general or specific description part and in the claims and / or the drawings features or method steps for the skilled in the art in view of Solution of the problem can be removed and lead by combinable features to a new object or to new process steps or process steps.

Figur 1

als Beispiel für ein stationäres Haushaltsgerät einen Waschautomaten,

Figur 2

eine Bedienelement für ein Haushaltsgerät,

Figur 3

eine Prinzipdarstellung des Bedienelements gemäß Figur 2,

Figur 4

ein Widerstandsprofil, mit dem das Bedienelement beaufschlagbar ist und resultierende Rastpositionen

Figur 5

ein Widerstandsprofil mit mehr als zwei unterschiedlichen Widerstandswerten,

Figur 6

ein Widerstandsprofil mit kontinuierlich zunehmenden Widerstandswerten,

Figur 7

unterschiedliche Anschläge für Widerstandsprofile,

Figur 8

eine Veranschaulichung einer besonderen Betriebsweise bei Überschreiten eines Anschlags, nämlich ein automatisches Zurückdrehen des Drehknopfs,

Figur 9

eine graphische Veranschaulichung zum Prinzip der Bedienung in Leserichtung und

Figur 10

eine besondere Ausführungsform des Bedienelements gemäß Figur 3 zur zusätzlichen Berücksichtigung von Tonprofilen.

Show it

FIG. 1

as an example of a stationary household appliance a washing machine,

FIG. 2

a control for a household appliance,

FIG. 3

a schematic diagram of the operating element according to FIG. 2 .

FIG. 4

a resistance profile, with which the control element can be acted upon and resulting detent positions

FIG. 5

a resistance profile with more than two different resistance values,

FIG. 6

a resistance profile with continuously increasing resistance values,

FIG. 7

different stops for resistance profiles,

FIG. 8

an illustration of a special operation when a stop is exceeded, namely an automatic turning back of the knob,

FIG. 9

a graphic illustration of the principle of operation in reading direction and

FIG. 10

a particular embodiment of the operating element according to FIG. 3 for additional consideration of sound profiles.

FIG. 1 shows an example of a stationary household appliance 10 a washing machine. In addition to components and units known per se, this includes a control unit 12 visible on a front side. The control unit 12 in turn comprises an operating element 14, of which in the illustration in FIG FIG. 1 especially a knob 16 is visible.

FIG. 2 shows the operating element 14 in a side view in a schematically simplified sectional view. Without further ado, the knob 16 is rotationally movable on an axis 20. With the same axis 20 is an electromagnetically acting resistance device 18 in operative connection, so that the resistance device, for example, a stepper motor is capable of exerting a force on the axis 20, which either counteracts a rotational movement exerted by a user on the knob or this supported. At the in FIG. 2 illustrated embodiment, the control element 14 is mounted on the control unit 12. The operating element 14 can also be attached to the operating unit 12 as a substantially self-contained modular unit.

FIG. 3 2 shows a schematically simplified representation of the operating element 14 with a processing unit 22 in the form of or in the manner of a microprocessor and a memory 24. Processing unit 22 and memory 24 can be used for operating unit 12 or, in the case of a substantially self-sufficient, modular operating element 14, for operating element 14 own belong. In the memory 24, a control program 28 is loaded in addition to a plurality of resistor profiles 26 for the resistance device 18, which determines the functionality of the control element 14.

During operation of the operating element 14, a resistance profile 26 is selected from the memory 24 of the plurality of resistance profiles 26 held there, and the resistance device 18 is acted upon by the selected resistance profile 26. In this case, the resistance device 18 is controlled as a function of the respective resistance profile 24 and a respective orientation of the rotary knob 16. The processing unit 22 thus detects an orientation of the rotary knob 16, for example in which a signal of an incremental encoder 30 or the like is processed for this purpose, determines in the respective resistance profile 18 a resistance value 32 corresponding to the respective orientation of the rotary knob 16 (FIG. FIG. 4 ) and controls the resistance means 18 so that the force exerted by this on the axis 20 of the knob is proportional to the respective resistance value 32.

Overall, the term resistance value 32 refers to the force or cogging torque that the operator needs or feels to turn to the corresponding detent position.

In addition shows FIG. 4 In the right-hand area of the illustration, a resistance profile 26 with a plurality of resistance values 32 encompassed therein can be seen. It can be seen that the resistance profile 26 is recorded for one full turn (0 ° .. 360 °) of a rotary knob 16, so that with different positions, each indicated in angular degrees of the knob 16 each have a resistance value 32 is linked. Deviating from the illustration in FIG. 4 The resistance profile can also be defined for more than one full turn. The ordinate in the diagrams of FIGS. 4 . 5 and 6 refer in each case to the resistance value, that is, the force to be applied for turning or switching or the detent torque opposite the rotary knob 16.

During operation of the control element 14, an activation of the resistance device 18 due to the respective resistance values 32 has the effect that, for different positions of the rotary knob 16, a different one depending on the associated position in the resistance profile 26 high force of the resistance device 18 acts. For the user results in a resistance profile 26 as in FIG. 4 represented so individual sites with noticeably different force influence of the resistance device 18, the user perceives as well as previously mechanically effected detent positions. The individual locking positions themselves are basically not graphically represented. Accordingly, on the left side of the illustration in FIG. 4 shown as locking positions 34, the locations of the respective resulting locking positions around the knob 16.

FIG. 5 shows in the right section of the illustration a comparison to FIG. 4 The respective radius of the detent positions 34 shown in a circle is to illustrate a respective Einraststärke at the locking position 34 graphically, with a large radius for a large Einraststärke and a small radius for a small Einraststärke stands. It can be seen from the right-hand area of the representation that the illustrated resistance profile 26 is a resistance profile with more than two different resistance values 32. The different resistance values 32 result in different strong engagement strengths at the respective detent positions 34 by the resistance device 18 caused haptics in the operation of the knob 16th

At the in FIG. 5 shown resistance profile 26 take the resistance values 32 in individual sections of the profile discontinuously. Concretely, the profile comprises two sections in which the resistance values 32 increase discontinuously, namely a first group with three discontinuously increasing resistance values 32 and then a second group with four discontinuously increasing resistance values 32. The concrete profile of a resistance profile 26 can be adapted to the respective situation as required be adjusted so that, for example, the number of detent positions 34 results from a number of choices in a selection menu. The Einraststärke, ie a local height of the resistance profile 26 at a certain point of the profile, namely the local resistance value 32, resulting for example by a structure of the menu.

If the operating element 14 is provided for a washing machine, the selection menu can be provided for the selection of different washing programs. Here you will find wash programs such as "32 ° C", "40 ° C", "60 ° C", "90 ° C", "Delicates 32 ° C" , "Wool", etc. into consideration. For example, with the four cooking programs you can increase each time Einraststärken be connected, wherein after the last cooking program in the respective selection menu basically a new section begins, which can be clearly displayed haptically by a comparison with the previous Einraststärke significantly lower Einraststärke.

FIG. 6 shows a resistance profile 26 that defines continuously increasing resistance values 32. On the left next to it, the rotary knob 16 is shown, the increasing resistance characteristic being illustrated by the circular arc increasing in its strength. In connection with in FIG. 5 shown resistance profile 26 with discontinuous resistance values 32 and the in FIG. 6 It should be pointed out that resistance profiles 26 with discontinuous discontinuous and continuous resistance values 32 are conceivable, if required by the underlying operating situation.

FIG. 7 shows a situation, each with a stop 36 for an allowable range of movement of the knob 16 due to a respective underlying resistance profile 26. It can be seen that different stop positions for the knob 16 can be realized, so that, for example, in a first program, a first stop 36 and in a second program one of them different second stop 36 results. A selection of the programs used in each case can be done with a selector 38 acting as a selector. The respective stop 36 need not necessarily be within a first full turn. In another embodiment, a stop may be defined after one and a half full revolutions or three full revolutions and so on.

FIG. 8 shows a situation in which the permissible range of movement of the knob 16 is also limited by a stop 36. The special feature is that when the stop 36 is exceeded, the resistance device 18 is driven in accordance with the resistance profile 26 for rotation of the rotary knob 16 in the direction of the stop 36. When the stop 36 is exceeded, the rotary knob 16 is therefore automatically rotated back to the position of the stop 36 by the resistance device 18.

FIG. 9 shows a graphical illustration of the principle of operation in reading direction. Concentric circles about the rotary knob 16 each exemplarily individual locking positions 34 are shown. If it is assumed that the detent positions shown on the inner circle belong to selections in a first selection menu, the selection thus made may possibly be made more concrete in a second selection menu. An example of selection options in a first menu selection would be in a washing machine as a household appliance 10 options such as "cooking linen", "color laundry", "easy care", "wool", etc. For the individual wash programs can then be made in a subsequent second selection menu a temperature code for example "30 °° C", "40 °° C", "60 °° C" and "90 °° C", for "kitchen linen" or "colored laundry". The operation in reading direction provides that a belonging to the second selection menu second resistance profile 26 is used when in the first selection menu, the second selection menu was selected and that the respective second resistance profile 26 begins with a respective current position of the knob 16. In the illustration in FIG. 9 This is shown by the arrow starting from the inner circle to the middle circle or to the outer circle. The arrow pointing to the middle circle belongs to a situation in which the local selection option was selected in the first selection menu at the detent position designated by the arrow, so that a subsequent second selection menu with an associated resistance profile 26 is used. This starts at the position determined by the instantaneous position of the rotary knob 16, which can be seen from the fact that all detent positions 34 of this selection menu / resistance profile 26 are in the direction of rotation starting from this position. For further clarification, an analogous situation is shown on an outer circle. This assumes that the selection position marked with the arrow pointing from the inner to the outer circle was selected in the first selection menu. This results in a second selection menu associated with this selection, which also begins at the current position of the rotary knob.

FIG. 10 finally shows a representation basically as in FIG. 3 , so that you can refer to the explanations there. In contrast to the representation in FIG. 3 In the embodiment illustrated here, not only the resistance profiles 26 but also acoustic profiles 40 are additionally stored in the memory 24. The acoustic profiles 40 correspond in terms of their functionality to the resistance profiles 26 and define, for different positions of the rotary knob 16, an acoustic signal which may possibly be output in such a position. During operation of the operating element 14 so the position of the knob 16 is received and not only the resistance device 18 according to the respective resistance profile 26 and the current position of the knob 16 but also a sounder 42 or other speakers according to the respective acoustic profile 40 and the same instantaneous position of the Knob 16 controlled. In this way, for example, detent positions 34 can also be displayed acoustically. Likewise, different Einraststärken at individual locking positions 34 can be displayed acoustically and by defined in the acoustic profile 40 different volumes or different pitches. In continuation of this approach can also be provided that an acoustic profile 40 defines not only levels and / or pitches but that an acoustic profile 40 for certain positions of the knob 16 defines certain acoustic signal sequences, so that individual locking positions of the knob not only haptically but also acoustically always become more distinguishable.

Individual aspects in the foreground of the description presented here can be briefly summarized as follows: An operating element 14 for an in particular stationary domestic appliance 10 with a rotary knob 16 rotatably mounted on an axis 20 is indicated, wherein the axis 20 is an electromagnetically acting resistance device 18 in FIG Active connection is, wherein the resistance device is acted upon in each case with a resistance profile 26 of a plurality of stored in a memory 24 resistance profiles 26 and wherein the resistance means 18 in response to the respective resistance profile 26 and a respective orientation of the knob 16 is controlled, whereby the operating element characterized indicates that at least individual resistance profiles 26 define more than two different resistance values 32. By virtue of the more than two different resistance values 32 in at least individual resistance profiles 26, the resulting detent positions 34 can be clearly differentiated, in principle even without optical feedback or the like.

Claims (10)

1. Control element (14) for a domestic appliance (10), in particular a stationary domestic appliance, comprising a dial (16) which is rotationally movable on a shaft (20) and a sound generator (42),

   an electromagnetic resistance device (18) being operatively connected to the shaft (20),

   it being possible for one resistance profile (26), in each case, from a plurality of resistance profiles (26) held in a memory (24) to be applied to the resistance device, and

   it being possible to control the resistance device (18) according to the particular resistance profile (26) and a particular orientation of the dial (16),

   at least individual resistance profiles (26) defining more than two different resistance values (32);

   characterised in that

   an acoustic profile (40) is associated with at least individual resistance profiles (26), according to which acoustic profile the sound generator (42) can be controlled, and the acoustic profile (40) comprising sound values correlating with the respective resistance values (32) of the associated resistance profile (26), and at least individual sound profiles (40) defining more than two different sound values.
2. Control element according to claim 1, which is designed to provide a first and a second selection menu, wherein a resistance profile (26) is associated with the first and the second selection menu, respectively, for the domestic appliance (10), such that the second resistance profile (26) is used when the second selection menu has been selected in the first selection menu, and wherein the second resistance profile (26) begins with a current position of the dial (16) in each case.
3. Control element according to either claim 1 or claim 2, wherein at least one resistance profile (26) defines, at least in portions, resistance values (32) which increase continuously or discontinuously.
4. Control element according to any of the preceding claims, wherein each resistance profile (26) defines at least one stop (36) and wherein the resistance device (18) can be controlled in order to rotate the dial in the direction of the stop (36) when the stop (36) is exceeded by a user actuating the dial (16).
5. Control element (14) according to any of the preceding claims, comprising a force generation means acting on the dial (16) for generating tactile or haptic acknowledgement of a selection.
6. Control element (14) according to any of the preceding claims, wherein an electric motor, in particular a stepper motor, functions as the electromagnetic resistance device (18) or the force generation means.
7. Control element (14) according to any of the preceding claims, wherein the acoustic profile defines different volume levels and/or pitches.
8. Control element (14) according to claim 7, wherein the acoustic profile defines specific acoustic signal sequences for specific positions of the dial (16).
9. Control unit (12) for a stationary domestic appliance (10) comprising a control element (14) according to any of the preceding claims and at least one selection device (38), wherein a resistance profile (26), which can be applied to the resistance device (18) of the control element (14), can be selected by actuating the selection device (38).
10. Domestic appliance, in particular a stationary domestic appliance (10), comprising a control unit (12) according to claim 9 and/or a control element (14) according to any of claims 1 to 8.

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