Method and device for detecting parameter values ​​in a vehicle

Abstract

In a method for detecting parameter values ​​in a vehicle, an input gesture is detected in a detection area. The detected input gesture is assigned to a first gesture type or a second gesture type. If the detected input gesture is assigned to the first gesture type, a manipulation trajectory is determined based on the detected input gesture and the parameter value is changed by a value that depends on the length of the manipulation trajectory. If the detected input gesture is assigned to the second gesture type, a manipulation position is determined based on the detected input gesture and a predetermined parameter value assigned to the manipulation position is set. A device for detecting parameter values ​​in a vehicle includes: a detection unit (2), which has a detection area and is configured to detect input gestures within the detection area; and a control unit (3), which is configured to assign the detected input gesture to the first gesture type or the second gesture type. Here, the device is configured to implement the method.

Description

Technical Field

[0001] The invention relates to a method and a device for detecting a parameter value in a vehicle. Background Art

[0002] Modern vehicles, in particular motor vehicles, are provided with a number of electronic devices which the driver or other vehicle occupants must be able to set and operate. These devices include, for example, an air conditioning unit, by means of which air can be directed to specific areas of the vehicle interior and by means of which other elements, such as seat heating, can also be controlled. Other devices are, for example, navigation systems, driver assistance systems and communication and multimedia units, such as telephone systems or devices for playing music and speech, such as radios or CD players.

[0003] Various operating units are known for operation. However, the driver is often faced with the challenge of having to operate a partly very complex device. The driver must devote part of his attention to mastering a plurality of operating elements and operating them in such a way that the setting is made or changed in the desired manner. This usually requires very precise operating actions, but the driver is only allowed to take his eyes off the traffic situation very briefly. In this case, operating errors should be avoided, which can significantly impair driving comfort and require further operating actions.

[0004] At the same time, the set parameters must be easily grasped by the user so that the user can judge whether the currently set parameter values ​​should be changed or whether the appropriate settings can be retained.

[0005] A device for operating a heating and air-conditioning system of a vehicle is known from DE 10 2016 200110 A1, in which a finger recess is formed in a substantially flat surface, in which a performed swiping gesture can be detected. Summary of the invention

[0006] The object of the present invention is to provide a method and a device of the type mentioned at the outset which allow an operation which is as versatile and rapid as possible.

[0007] According to the invention, this object is achieved by a method for detecting a parameter value in a vehicle and a device for detecting a parameter value in a vehicle. Advantageous embodiments and developments emerge from the following description.

[0008] In the method for detecting parameter values ​​in a vehicle according to the present invention, an input gesture is detected in a detection area and the detected input gesture is assigned to a first gesture type or a second gesture type. If the detected input gesture is assigned to the first gesture type, a manipulation trajectory is determined based on the detected input gesture and the parameter value is changed by a value that depends on the length of the manipulation trajectory. If the detected input gesture is assigned to the second gesture type, a manipulation position is determined based on the detected input gesture and a predetermined parameter value assigned to the manipulation position is set.

[0009] That is, in the case of an input gesture of the first gesture type, the parameter value is detected relative to the current value, while in the case of an input gesture of the second gesture type, an absolute value is detected. Thus, in this method, the advantages of relative and absolute input approaches for parameter values ​​are advantageously combined.

[0010] Since the change in the case of an input gesture of the first gesture type depends only on the length of the operating trajectory, the input gesture is only changed relative to the currently set parameter value. For example, a specific length of the operating trajectory, such as when sliding along a section of a slider element with a specific length, is assigned to a specific numerical value by which the parameter value is increased or decreased. In the case of an input gesture of the second gesture type, the set parameter is directly assigned to the operating position. In other words, the operation at a specific operating position, such as the operation of a slider element, directly leads to the setting of a specific parameter value. That is, there is an absolute assignment between parameter value and operating position.

[0011] Setting a value that is far from the currently set parameter value by means of a relative change may require several manipulations, whereas such a change can be realized more quickly by means of an absolute operation. Conversely, a parameter can be set particularly precisely by setting it by means of a relative operation, for example by changing it in a plurality of small steps. In this method, the user can quickly and in a particularly simple manner determine which type of operation is particularly useful to him in the current situation by selecting a suitable input gesture.

[0012] In order to perform input gestures, according to the present invention, a manipulation object, in particular a user's hand or finger, is used. In the following description, the user's finger is the manipulation object, but these descriptions are generalized to other manipulation objects, such as a pen.

[0013] For the purposes of the present invention, an "input gesture" is understood to be a specific gesture of a manipulation object or a specific movement performed with a manipulation object. The input gestures can be designed in a manner known per se. These input gestures include in particular tapping gestures, swiping gestures and holding gestures as well as a combination of a plurality of such gestures that can be performed immediately and quickly in succession. Other gestures, such as gestures associated with rotational movements, can also be provided. These gestures are performed within a detection area, which in particular includes the surface of the detection unit. By controlling the user interface with the aid of input gestures, a particularly simple and intuitive input method is provided to the user.

[0014] In this case, the detection of gestures is not necessarily limited to the surface. Rather, gestures can be performed in a detection area formed in practically any way and, if necessary, detected using different detection methods. For example, gestures can also be detected in three-dimensional space. In particular, virtual operating objects, such as virtual buttons, can be constructed. For example, gestures can be detected in a spatial area in which a virtual operating object is generated, for example, by means of projection or by virtual reality methods and the gesture is detected with reference to the virtual operating object. In particular, the position, trajectory, direction and / or speed of the gesture are detected for this purpose.

[0015] The detection of gestures can take place, for example, by means of optical or electronic detection methods; for this detection, for example, lasers, electromagnetic fields in the microwave range or other methods can be used.

[0016] An input gesture comprises, for example, a touch at a specific position within the detection area, wherein the manipulation position and the duration of the manipulation until the touch is released are detected. The input gesture may also comprise a swipe gesture, wherein a movement from a starting position to an end position is performed during the touch. In the case of this movement, the touch describes a manipulation trajectory, that is to say a time-ordered and coherent sequence of manipulation positions. Subsequently, the parameter value is set according to the input.

[0017] In the case of an input gesture of the first gesture type, the positions of the detection area are assigned absolute parameter values ​​and can be selected by manipulation at these positions. In the case of an input gesture of the second gesture type, the currently set parameter value is changed, that is, a relative change is made. To this end, the length is determined for the manipulation trajectory, in particular the distance between the starting position and the end position of the manipulation, and the difference from the set parameter value is determined based on this length. The parameter value can be increased or decreased depending on this value, for example, depending on the direction of the input gesture. In this way, for example, the parameter value can be increased in the case of a movement from left to right and the parameter value can be decreased in the case of the opposite movement. Other changes depending on the direction are also conceivable, such as vertical or inclined.

[0018] That is, the user can easily determine in which way the parameter value should be changed by selecting a suitable input gesture. Thus, different ways of setting the parameter value can be realized using the same detection area, especially the same operating element in the vehicle. In the same surface area, a specific parameter can be selected directly by selecting the operating position, while the input gesture of the first gesture type causes a relative change of the parameter value with a specific operating trajectory in the surface area.

[0019] In one embodiment of the method according to the invention, the detected input gesture can also be assigned to a third gesture type, wherein if the detected input gesture is assigned to the third gesture type, the control position is determined as a function of the detected input gesture and the parameter value is changed by an increment determined as a function of the control position. This advantageously enables a more precise operation adapted to the current situation by providing a further input path relative to the currently set parameter value.

[0020] When implementing a parameter value, a fixedly predefined increment is added to or subtracted from the current parameter value by an input gesture of the third gesture type during each actuation. Different subareas of the detection area can be provided for addition and subtraction or different increment values. This means that three different gesture types can be used for input within the same detection area, wherein the parameter value is changed in three different ways. This has the advantage of a particularly compact design, especially in the case of the generally limited installation space in vehicles. At the same time, the user can use the same operating element in a variety of ways within a specific detection area.

[0021] In another embodiment, the first gesture type comprises a swipe gesture. In this way, the parameter value can be advantageously set particularly precisely and simply, but still quickly.

[0022] In particular, a direction, a speed and / or a distance are determined based on the swipe gesture, and the parameter value is changed as a function of the determined direction, speed and / or the determined distance. In particular, a starting position and an end position of the swipe gesture are determined for this purpose, wherein an actuation starts and ends within the detection area, for example by touching and then releasing the touch; the distance and / or direction between these positions can be determined. The time between the starting position and the end position of the swipe gesture can also be determined in order to then determine the speed of the swipe gesture.

[0023] For example, the parameter value can be increased in one direction and decreased in another direction, for example by changing the value of the change as a function of the distance between the starting position and the end position and the difference per unit length. Then, the greater the determined distance between the starting position and the end position, the greater the value of the parameter value is changed, for example. In addition, the difference can be determined as a function of the speed, for example with a greater difference at a higher speed; in particular, in this way another gesture type can be defined, such as a "Swipe" with a higher speed, which can, for example, cause a greater change in the value of the parameter per unit length. Conversely, if the speed of the swipe gesture is below a threshold value, the change in the parameter value can be constructed to be smaller in value, for example in order to facilitate fine tuning of the parameter value. In addition, a threshold value can be defined for the distance and / or the speed, wherein the swipe gesture causes a predetermined change in the parameter value when the threshold value is exceeded. For example, a swipe can automatically cause the setting of a maximum or minimum parameter value depending on the direction of the swipe gesture.

[0024] In an extension, the second gesture type includes a tap gesture. The tap gesture can be configured, for example, as a tap, a hold, a "long push" or a "long press". In this way, the parameter value can be advantageously set particularly accurately without having to focus the user's attention on the operating process for a long time.

[0025] For a tap gesture, in particular, the manipulation position and the duration of the manipulation within the detection area are detected.

[0026] Even if a tap gesture is to be performed, it is not always possible to perform the touch in such a way that any movement along the surface is avoided. In order to distinguish between a swipe gesture and a tap gesture, in particular the distance between the start position and the end position of the touch or the maximum distance along the manipulation trajectory can be evaluated. For example, the distance can be compared with a threshold value. If the distance exceeds the threshold value, the input gesture is a swipe gesture, and if the distance is below the threshold value, the input gesture is a tap gesture.

[0027] In one embodiment, the second gesture type is determined based on the duration of the time period during which an operation is performed in the detection area, wherein the operation is detected in particular continuously. In this way, other gesture types can be advantageously distinguished from each other particularly easily.

[0028] In this embodiment, in the case of the second gesture type, the start and end time of the touch are detected. Based on these time points, the touch duration can be determined and compared with a threshold value. If the threshold value is exceeded, for example 400ms or 800ms, it is an input gesture of the second gesture type, and if it is below the threshold value, it is, for example, an input gesture of the third gesture type. In the described case, the second gesture type corresponds to holding or a so-called "long press" or "long pressure", while the third gesture type corresponds to tapping.

[0029] For example, it can be provided that an input gesture of the first gesture type can be performed within the entire detection area and always causes the same change in the parameter value regardless of the specific position of the manipulation. That is, only the length of the manipulation trajectory is evaluated, but the orientation of the manipulation trajectory within the detection area is not evaluated. In the same example, two partitions are constructed on the left and right sides of the detection area so that in the case of these two partitions, tapping, that is, an input gesture of the third gesture type, causes a decrease or increase in the parameter value. In addition, in the same example, the three partitions of the detection area are constructed so that in the case of these three partitions, maintaining the manipulation, that is, an input gesture of the second gesture type, causes a direct setting of a specific parameter value; in particular, the minimum parameter value is set by the partition arranged on the left, the maximum parameter value is set by the partition arranged on the right, and a specific parameter value in between is set by the partition arranged in the middle.

[0030] In another embodiment, the parameter value is changed so that the parameter value takes the next value from a series of sequential setting values ​​at each operation. This makes it possible to switch between predefined settings particularly quickly and easily. In particular, it is a so-called toggle switch.

[0031] Such a switch between settings in an ordered sequence is performed, for example, in the case of an input gesture of the second or third gesture type, in particular in the case of a tap. Furthermore, the switch can be performed with a long hold, in which case, in particular, a switch is made to the next setting after a certain period of time has expired; in this case, the user only has to hold the actuation long enough to cycle through a plurality of settings in sequence.

[0032] In one embodiment, the detection area is a surface area of ​​the detection unit. This makes it possible to advantageously use the touch-sensitive surface particularly efficiently.

[0033] The detection region is formed in particular on a touch screen or in another manner known per se. For example, a capacitive or resistive sensor can be used to detect an operation.

[0034] In another exemplary embodiment, the detection region may be designed in another way, for example as a spatial region, in particular a spatial region above a surface or in the vicinity of an operating element.

[0035] In one embodiment, the detection region has a longitudinal extension and a transverse extension. The transverse extension runs perpendicularly to the longitudinal extension and the longitudinal extension is at least twice, preferably three times, the transverse extension. The detection region is thereby formed in an elongated manner and is therefore advantageously particularly well suited for intuitive setting of parameter values. Thus, for example, this may be a slider element, by which the functionality of a simulated sliding controller is realized.

[0036] In another embodiment, when an input gesture is detected and / or when a gesture type is recognized, an acoustic feedback is generated. Thus, the user can advantageously recognize particularly easily whether his input has been accepted.

[0037] Alternatively or additionally, if the parameter value is changed, acoustic feedback can also be generated. The acoustic feedback is generated in a manner known per se. Here, for example, different feedbacks can be selected or dynamically formed according to the recognized gesture type, the set parameter value or other influencing variables.

[0038] The device for detecting parameter values ​​in a vehicle according to the present invention comprises: a detection unit having a detection area and being configured to detect an input gesture within the detection area; and a control unit configured to assign the detected input gesture to a first gesture type or a second gesture type. Here, the control unit is further configured to: if the detected input gesture is assigned to the first gesture type, determine a manipulation trajectory based on the detected input gesture and change the parameter value by a value depending on the length of the manipulation trajectory; or if the detected input gesture is assigned to the second gesture type, determine a manipulation position based on the detected input gesture and set a predetermined parameter value assigned to the manipulation position.

[0039] The device according to the invention is especially designed to implement the method according to the invention described above. Therefore, the device has the same advantages as the method according to the invention.

[0040] In another embodiment, the device has a surface structuring, in particular depressions or elevations, in the region of the touch-sensitive surface. This makes it advantageously possible to find the operable regions particularly easily and to operate them.

[0041] In particular, in this way a sensory aid is provided, by means of which the user can grasp the position and extent of the detection area. For example, the surface deformation that can be detected tactilely can include locally changed roughness. In addition, essentially point-shaped projections or depressions can be formed on the surface, or elongated depressions or projections can be provided. More complex shapes are also conceivable, such as depressions with ridges running therein or other perceptible markings. The depressions can also run in a straight line or along a curve.

[0042] In another embodiment, the device also includes a sensor for detecting approach to the touch-sensitive surface in a manner known per se. If such approach is detected, the light-emitting elements can be controlled so that they emit light of at least a basic intensity, in order to thereby display the position of the light-emitting elements to the user or indicate an input path, for example.

[0043] The parameter values ​​relate in particular to settings for the temperature, a fan or a media player of the vehicle.

[0044] Now, the present invention will be explained based on embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Now, the present invention will be explained based on embodiments with reference to the accompanying drawings.

[0046] Figure 1 A vehicle having an embodiment of the device according to the invention is shown;

[0047] Figure 2 shows further details of an embodiment of the device according to the invention;

[0048] Figures 3A to 3C An embodiment of outputting parameter values ​​by means of a segment display device is shown;

[0049] Figure 4A and 4B An embodiment for setting a parameter value by means of a slider element is shown;

[0050] Figures 5A to 5F An embodiment for setting the air distribution caused by a fan is shown; and

[0051] Figures 6A to 6C A further exemplary embodiment for setting a parameter value by means of a slider element is shown. DETAILED DESCRIPTION

[0052] refer to Figure 1 A vehicle having an embodiment of the apparatus will be described.

[0053] The vehicle 1 comprises a detection unit 2 which is coupled to a control unit 3. An air conditioning unit 4 is also coupled to the control unit 3.

[0054] In this embodiment, the detection unit 2 has a surface facing the user in the vehicle 1. Different symbols are arranged on this surface, which symbols can be partially backlit by light sources, especially LEDs. There is also a region with luminous areas, which are covered by a coating so that they are only substantially visible to the user when they are actually lit, and are practically invisible when they are not lit. In particular, a display configured as a so-called black panel is used here.

[0055] The surface of the detection unit 2 can be designed to be flat. The surface can also have depressions and / or protrusions, which can be detected by the user with his fingers and can serve as a sensory aid for specifically marking certain areas of the surface. For example, such a sensory aid can highlight mechanical switches or touch-sensitive areas of the surface, which are designed, for example, as button elements or slider elements.

[0056] The detection unit 2 also includes a film manufactured by IML process (in-mould labeling) and post-injected with plastic. In this embodiment, the detection unit also includes sensor elements Sa, Sb, Sc, which are configured as capacitive sensor elements here. Sensor elements Sa to Sc are arranged behind the surface of the detection unit 2 so that these sensor elements are invisible to the user. Sensor elements Sa to Sc are configured in a manner known per se so that these sensor elements can detect manipulation performed by an operating element. For this purpose, these sensor elements each have a detection area, which, for example, includes an area on the surface of the detection unit 2 and / or a spatial area arranged above the surface. In particular, the user's finger can be used as an operating element. In this embodiment, sensor elements Sa to Sc detect manipulation based on the entry of the operating element into the detection area, based on the degree of touch on the surface, based on the distance of the operating element from sensor elements Sa to Sc, based on movement in the detection area and / or based on the length of time the operating element is detected. Then, the manipulation is evaluated by the detection unit 2 and / or the control unit 3.

[0057] In this embodiment, the sensor elements Sa to Sc are arranged equidistant from one another along a straight line. Thus, along this line, a sliding or slider element is realized. This function is explained in detail further below.

[0058] In other exemplary embodiments, the detection unit 2 has, alternatively or additionally, touch-sensitive surface areas which are designed in other known ways. By means of these touch-sensitive surface areas, an actuation by an actuation element can be detected similarly to the operating principle of the sensor elements Sa to Sc explained above.

[0059] In particular, the detection unit 2 generates a control signal when an actuation is detected and transmits it to the control unit 3. Parameter values ​​can be set, either the detection unit 2 itself already processing the input to such an extent that it assigns a specific parameter value to the input, or the control unit 3 assumes this processing of the input or the control signal generated by the detection unit 2.

[0060] Furthermore, the detection unit 2 comprises light emitting elements La, Lb, Lc, Ld, Le, which are arranged adjacent to each other in the form of a segment display device along a straight extension direction. The light emitting elements La to Le can be controlled independently of each other by the control unit 3.

[0061] The air conditioning unit 4 is designed in a manner known per se and in this embodiment comprises in particular a heating device for the vehicle 1, a seat heating device for the driver and front passenger seat, a steering wheel heating device, a window heating device and a fan for guiding air into the interior space of the vehicle 1, wherein the direction, distribution, intensity and temperature of the inflowing air can be set.

[0062] refer to Figure 2 To elaborate on the above reference of the device in more detail Figure 1 The described embodiments.

[0063] Figure 2 The view of the surface of the detection unit 2 facing the user in the interior of the vehicle 1 is shown. The surface is substantially designed as a horizontally extending rectangle. In the upper area, key elements 101, 102, 103, 104, 105, 106, 107 are arranged side by side. In this exemplary embodiment, these key elements are designed as touch-sensitive surface areas, which can be operated by touching with an operating element, in particular a finger of a user. Figure 2 In the figure, the touch-sensitive areas assigned to the individual key elements 101 to 107 are outlined by dashed lines. In these areas, luminous areas are also formed, which can be illuminated with a certain intensity and / or color by activating LEDs arranged behind, for example, in order to output the state, activity or setting of the function assigned to the corresponding key element 101 to 107. The detection unit 2 is controlled by the control unit 3 and the signals detected by the detection unit 2 are evaluated if necessary.

[0064] In the middle and lower area of ​​the surface of the detection unit 2, further key elements 108, 109, 110, 111 are also configured. In this exemplary embodiment, these further key elements are also configured by means of a touch-sensitive surface area outlined by a dashed line. By actuating the further key elements 108 to 111, further functions can be called up, activated or set. Thus, for example, by actuating the key element 110 "MENU", a menu presentation on a display in the vehicle 1 can be called up. By actuating the key element 111 "OFF", the air conditioning unit 4 can be switched off. By means of the key element 109 "A / C", the air conditioning system of the air conditioning unit 4 of the vehicle 1 can be activated, and by means of the key element 108 "AUTO", the automatic mode of the air conditioning unit 4 can be activated.

[0065] In other embodiments, the key elements 101 to 111 can be configured as mechanical switches, in particular key switches. In addition, in other embodiments, other functions can be provided alternatively or additionally.

[0066] In the middle and lower region of the detection unit 2, segment displays 115, 116 are also arranged, which in this embodiment are suitable for outputting two-digit temperature values ​​with a decimal point. Slider elements 112, 113, 114 are also arranged here for setting the temperature and the fan level. The corresponding adjustable functions of the air conditioning unit 4 are outlined by the symbols on the surface. The slider elements 112 to 114 each include a horizontal straight line of a certain length, along which a depression is formed on the surface of the detection unit 2. Behind the depression, the sensor elements Sa to Sc are outlined, hidden by the surface, by which touches in the region of the slider elements 112 to 114 can be detected, respectively, wherein in particular the position of the touch and, if necessary, the movement along the slider elements 112 to 114 are detected.

[0067] In this embodiment, the line of the slider element 112 for setting the fan, that is, the fan slider 112 can be illuminated in sections by the light-emitting elements La to Le arranged behind it.

[0068] refer to Figures 3A to 3C , an embodiment of outputting the set level of the fan of the air conditioning unit 4 by means of a segment display device is described. Here, in particular, the above reference to the device Figure 1 and 2 The exemplary embodiment described is used as a starting point. The segment display device of this exemplary embodiment is arranged in particular in the region of the fan slide 112 and is actuated by the control unit 3 .

[0069] In this example, the seven light zones LED1 to LED7 can be arranged side by side along a straight line, especially by LED lighting, and can be controlled independently of each other. The number of light zones LED1 to LED7 that are lit corresponds to the activated level of the fan, that is, as many levels as light zones LED1 to LED7 are set. In this embodiment, a diffuser glass is also arranged above the light zones LED1 to LED7, so that the light zones LED1 to LED7 that are arranged side by side and are lit form a continuous line from the user's perspective.

[0070] exist Figure 3A In the case shown in FIG. 4 , the fan of the air conditioning unit 4 is deactivated. The diagram shows the light emission intensity on the Y axis, while the individual light emission zones LED1 to LED7 are assigned positions along the X axis. No light emission zone is lit, which is Figure 3A The chart is presented by bars that are not actually visible.

[0071] exist Figure 3B and 3C In the case of , the third level of the fan of the air conditioning unit 4 is activated. These figures show the dependence of the intensity of the light emitted by the light zones LED1 to LED7 on the position or the corresponding light zones LED1 to LED7. Figure 3B In case of activating the night mode of the segment display device, Figure 3C . The first three luminous fields are controlled so that they light up at 60% or 100% of the maximum intensity, while the remaining four luminous fields are controlled so that they light up at only 10% or 20% of the maximum intensity. That is, in the day mode, the display is displayed with an increased light intensity compared to the night mode, so that the display can be easily read even in strong ambient light, but does not disturb or dazzle the user with an excessively high intensity at night when the ambient light is low.

[0072] In this embodiment, a brightly lit luminous area is "overlit" relative to an adjacent, unlit or weakly lit luminous area. " is hidden in that all lighting areas are illuminated at least with the basic intensity. Only the lighting areas that are actually used for display are illuminated with a higher display intensity. That is, all lighting areas that are not used to display the fan level are illuminated evenly instead of having different intensities due to overlighting, depending on the distance to the lighting areas that are illuminated with a higher intensity.

[0073] In order to achieve this uniform lighting with a basic intensity, it may be necessary to load the LEDs with different currents; in particular to compensate for over-lighting. Figure 3BIn the case shown in , it can be provided that the first three LEDs LED1, LED2, LED3 are operated with a first current for 60% of the maximum intensity, wherein the overlighting causes that a certain intensity is already emitted in the region of two adjacent luminous fields LED4 and LED5. Therefore, the LEDs of these luminous fields LED4 and LED5 are operated only with a lower current than the LEDs of the luminous fields LED6 and LED7 which are located further away, in order to achieve a uniform basic intensity of the LEDs LED4 to LED7. For example, the immediately adjacent luminous field LED4 is operated with 5%, and the next adjacent luminous field LED5 is operated with 7%, while the luminous fields LED6 and LED7 which are further away are operated with 10%. In other embodiments, further light sources can be considered, in particular, which emit light into the luminous fields LED1 to LED7 and which are compensated by suitable actuation of these LEDs.

[0074] In other embodiments, other ratios between the intensities and different modes can be provided. For example, the ambient brightness can be detected and the light intensity of the activated luminous area can be dynamically matched to the detected ambient brightness. In addition, the values ​​of the mutual allocation of the basic intensity and the display intensity can be fixedly predetermined, as is the case in this embodiment. In addition, the basic intensity can, for example, be a certain part of the display intensity or the basic intensity can be determined in other ways, such as determined based on a physical model, wherein the intensity of the overlighting is determined based on the display intensity and then the basic intensity is formed so that the overlighting is hidden thereby.

[0075] In another embodiment, all lighting zones are illuminated at a basic intensity, which is determined, for example, as a function of the ambient brightness, even when the fan is deactivated. In this way, the lighting zones can be used as design elements and for displaying the level "0". The user can then see, in particular, that a display for setting the fan is present in a specific area and / or that operations for setting the fan can be performed in such an area.

[0076] In other embodiments, these light areas may be used to display other parameters.These light areas may also be used in conjunction with different slider elements 112, 113, 114 or other displays and manipulated in the manner described.

[0077] It is also possible to use a greater number of lighting zones, in particular to be able to set more lighting zones than levels. For example, intermediate levels can be displayed in this way, or during operation, for example by means of the fan slider 112, the illuminated lighting zones can follow the position of the operating object on the slider 112. Furthermore, instead of a linear arrangement side by side, the lighting zones can be arranged in another way, for example in a two-dimensional matrix.

[0078] refer to Figure 4A and 4B , an embodiment for setting a parameter value by means of a slider element is described. Here, in particular, the above reference to the device Figure 1 and 2 The exemplary embodiment described is taken as a starting point. In particular, the control is performed by means of the control unit 3 .

[0079] The following description relates by way of example to a slider element 112 which, in this exemplary embodiment, is assigned to the detection unit 2 as a fan slider 112 for setting the fan of the air conditioning unit 4. Of course, the method can also be used for other slider elements 112, 113, 114 and for detecting other parameter values.

[0080] On the surface of the detection unit 2 facing the user, for example Figure 2 As shown in FIG. 1 , a horizontal line is arranged in the region of fan slider 112 , at the left end of which a fan symbol 112 a for the off state of the fan is arranged, and at the right end of which a fan symbol 112 b for the maximum active state of the fan is arranged.

[0081] Light sources are arranged behind this surface, in this embodiment LEDs, by means of which not only the line 112 but also the symbols 112a, 112b can be illuminated. In this embodiment, the line 112 can also be illuminated as a segment display, that is, behind this, the light sources are arranged side by side in a row so that individual areas of the line 112 can be illuminated independently of one another with different intensities. Figures 3A to 3C The method described outputs the set level of the fan. The symbols 112a, 112b and the line 112 can be printed permanently and visible or can be formed by means of blackboard technology in such a way that they are only visible when they are illuminated from behind.

[0082] exist Figure 4A and 4B In the embodiment, the touch-sensitive areas 149, 141a, 141b, 142a to 142i are outlined by dashed lines. In these areas, the sensor elements Sa to Sc detect the manipulation by the manipulation object, as already explained above, or can be detected in other ways. According to this embodiment, during manipulation, the surface of the detection unit 2 is touched by the manipulation object in the touch-sensitive area. In other embodiments, instead of touching, detection can also be performed when the manipulation object is in a specific spatial area or at a position, for example, close to the surface of the detection unit 2.

[0083] In this embodiment, manipulation at a specific position is detected in the following way: sensor elements Sa to Sc detect signals of different strengths depending on the position of the manipulated object. For example, the strength of the signal detected by the capacitive sensor depends on the distance of the manipulated object into the detection area. In this embodiment, the user touches the slider element 112 at any point or the user moves his moving position along the slider element 112. Therefore, different signal strengths are detected by the sensor elements Sa to Sc depending on the current position. The position is determined based on these signal strengths, and the parameter value is set based on the determined position.

[0084] In this way, different spatial regions, in particular surface regions on the surface of the detection unit 2, can be used as mutually separated regions in order to detect manipulations therein. In particular, the manipulations can also be evaluated differently depending on the respective surface region. For example, the surface region can be configured as a key element with a certain response characteristic, that is to say, for example, with a determined threshold value for the time period of the manipulation, or as a slider element with another response characteristic.

[0085] That is, the surface area within which the manipulation can be detected can be constructed only virtually, without requiring a separate area for each arbitrary area. A coherent area can be formed within which the manipulation position or manipulation trajectory is detected, or individual areas can be formed, wherein the manipulation is detected if it is assigned to an arbitrary position within these individual areas.

[0086] In this embodiment, it is also provided that the set level is displayed by a segment display device in the area of ​​the slider element 112. Figures 3A to 3C The method described above is carried out. When the slider element 112 is manipulated at one position, the slider element is illuminated at the corresponding position and the corresponding level of the fan is set. However, in this embodiment, not only is it detected in which level of area the manipulation position is currently located, but also the approach to the surrounding area is detected. In particular, when the manipulation object, such as the user's finger, moves in the direction of other levels, the detection is performed and the approach is also displayed. For example, the user can move his finger along the slider element 112 and approach the area assigned to the next level of the fan. The closer the user is to the area of ​​the next level, the more the light-emitting elements arranged in the area are illuminated with increasing intensity. When the user reaches the next area, the next area is illuminated with normal display intensity.

[0087] Different from known touch-sensitive surfaces, in an embodiment of the method, parameter values are detected particularly flexibly and / or with higher resolution by means of fewer sensors. In the known manner, at least one sensor element is provided for each detectable position, while in the described method, fewer sensors are used in a particularly space-saving, cost-effective and simple manner.

[0088] Detect and evaluate different residues of the manipulation, such as the starting position where the touch begins, the ending position where the touch ends, and the trajectory along which the manipulation object moves from the starting position to the ending position along the surface. Alternatively or additionally, the duration of the touch and / or the stay at a certain position can be detected. If necessary, the direction and / or speed of the movement along the surface can also be determined and evaluated.

[0089] Different manipulation paths can be distinguished, which in particular indicate different types of manipulations for inputting or selecting parameter values and which are subsequently also referred to as "use cases". For example, for button or slider elements, these manipulation paths can be used not only in touch-sensitive surface areas but also for mechanical switches.

[0090] The user can manipulate the touch-sensitive area by means of an "anti-pen", where the time period Δt is detected between the start and the end of the touch, and this time period is shorter than the determined threshold t0: Δt < t0. The threshold t0 can be, for example, 400 ms or 800 ms. Here, the time point for detecting the manipulation event and, for example, changing the parameter value is usually the time point when the touch is released. Alternatively, the manipulation event can also be detected even at the start of the touch, in which case each touch already triggers an anti-pen event. Typical applications of the anti-pen are, for example, turning on and off functions, incrementally changing parameter values or directly selecting parameter values by tapping on a button.

[0091] The user can also hold the touch at a specific position or within a specific surface area for a time period Δt that is longer than the threshold t1: Δt > t1. The threshold t1 can be, for example, 400 ms or 800 ms. This manipulation can be referred to as "holding", "long press" or "long push". Once the held time period exceeds the threshold or when the touch is released, the corresponding hold event can be triggered. As a further condition, it can be defined that the touch must be released at a specific position or within a specific area in order to trigger the hold event; in this case, the user can prevent the trigger by moving the manipulation object to another area, for example, to another button element.

[0092] Furthermore, a "multiple hold" can be performed in the following manner: the first surface area is touched for longer than the threshold value t1 and then transitions to the second surface area, which is then also touched for longer than the threshold value t1. This makes it possible, for example, to operate multiple key elements without having to lift the operating object. For this purpose, the first key element is operated with a "hold" gesture and then the user continues to slide the operating object to another key element without releasing the touch.

[0093] In the case of “persistent hold”, an actuation is detected for a period Δt longer than the threshold value t0 and a new actuation is detected for each multiple of the threshold value t0. In this case, the user can trigger multiple actuations by holding the actuation for a corresponding multiple of the threshold value t0.

[0094] Furthermore, a "slide" can be detected as an operation, for example, when the operating object remains in the surface area for a period of time Δt shorter than a threshold value t0 and then operates an adjacent surface area. This operation can then be detected, for example, for the adjacent surface area when the touch is released, in which case it is particularly taken into account whether the user has been touching the adjacent surface area for a period of time Δt shorter than the threshold value t0 or, for example, whether a hold is performed here.

[0095] Furthermore, a "swipe" can be detected as an operation, in which the position of the touch moves from a first surface area to a second surface area and in this case in particular crosses over other surface areas. The speed at which the position changes is also taken into account, and for example parameter values ​​can be changed more quickly than in the case of a swipe. In particular, a "swipe" can be detected when the speed of the swipe gesture exceeds a threshold value.

[0096] exist Figure 4A In the case shown in , the fan slider is defined as a continuous active slider area 149, which extends over the entire length of the line 112 and the adjacent symbols 112a, 112b. Within the area 149 of the active slider area 149, the position of the touch and manipulation can be detected. If the manipulation object moves along the longitudinal extension of the fan slider 112, the position of the touch is continuously detected, especially during the swipe gesture, and the set level of the fan follows this position. For example, the lowest level is assigned to the left area of ​​the fan slider 112 or the fan symbol 112a on the left, and the highest level is assigned to the right area of ​​the fan slider 112 or the fan symbol 112b on the right. In between, areas of the same size are distributed on the longitudinal extension of the fan slider 112, and these areas are respectively assigned the levels located between them.

[0097] In this example, if the manipulation object reaches the position assigned to the grade, the grade is set. In other embodiments, the grade is set when the touch is released, wherein the grade assigned to the position when the touch is released is then set.

[0098] And in Figure 4B In the case shown in FIG. 1 , individual touch-sensitive surface areas 142 a to 142 i are configured. These touch-sensitive surface areas are manipulated by tapping, so that the user can select the level of the fan directly by selecting a touch-sensitive surface area 142 a to 142 i.

[0099] In addition, the two leftmost touch-sensitive surface areas 142a, 142b and the two rightmost touch-sensitive surface areas 142h, 142i are combined to form an enlarged operating area 141a, 141b. By tapping in one of these enlarged operating areas 141a, 141b, the user can increase or decrease the level of the fan. By holding in one of the enlarged operating areas 141a, 141b, the level is gradually increased or decreased, depending on the time period for which the touch is held.

[0100] In this embodiment, by enlarging the operating area 141a, 141b, the way to directly select the fan level is limited to the extent that the lowest level and the highest level cannot be directly selected. Instead, these levels are only realized in the following way: based on the next adjacent level, the corresponding enlarged operating area 141a, 141b is tapped again or is permanently held.

[0101] In this embodiment, Figure 4A and 4B The situation shown in the figure should not be understood as a static configuration of the detection unit 2. Rather, the detection unit 2 dynamically switches between the two configurations, that is, dynamically switches between the two configurations according to the type of manipulation detected, that is, the use case detected. That is, when the user performs a swipe gesture, the manipulation is like the above reference Figure 4A If the user performs a tap gesture or a long hold gesture, then the Figure 4B The gesture is evaluated as in the described configuration.

[0102] In other embodiments, the mentioned configurations may be combined or configured in other ways.

[0103] In this embodiment, it is also provided that after a swipe gesture is detected in the region of one of the slider elements 112, 113, 114, the key elements 108 to 111 arranged adjacent to the slider elements 112, 113, 140 are disabled for detecting an operation. This prevents the user from accidentally operating one of the key elements 108 to 111 when the user continues the movement of the operated object beyond the region of the slider elements 112, 113, 114 in the case of a swipe gesture.

[0104] The blocking of adjacent key elements 108 to 111 or other touch-sensitive surfaces or switching elements is performed within the determined blocking time period. The blocking time period starts in particular at the time when the touch of the slider elements 112, 113, 114 ends, and the blocking time period can be determined dynamically, for example, depending on the speed of the swipe gesture and / or the driving speed of the vehicle 1.

[0105] In other embodiments, a distance from the slider elements 112, 113, 114 is defined within which no manipulation is detected during the inhibition period. The distance can also be determined dynamically, for example as a function of the speed of the swipe gesture, the longitudinal extension of the slider elements 112, 113, 114 and / or as a function of the driving speed of the vehicle 1. Based on the distance, in particular, a surface area that extends the longitudinal extension of the slider elements 112, 113, 114 can be defined; for example, then the area above or below the horizontally extending slider elements 112, 113, 114 is not inhibited, while the laterally adjacent surface areas are inhibited during the inhibition period.

[0106] In another embodiment, adjacent key elements 108 to 111 are disabled only when it is detected that the swipe gesture is performed at least up to or beyond the side ends of slider elements 112, 113, 114. In other embodiments, the disablement of a specific surface area of ​​the detection unit 2 can be triggered by an event other than a swipe gesture, for example, by any manipulation in the specific surface area.

[0107] In another embodiment, the user first actuates a first key, then changes his selection and slides to another key. In this case, it can be provided that the actuation is only detected when the user releases the touch. Only then is the inhibited period triggered. That is, the user can in this case slide from the first key to the second key without releasing the touch and actuate the second key when lifting the finger. Only then does the inhibited period begin and no further keys can be actuated.

[0108] In one embodiment, when an input gesture or gesture type is recognized, an acoustic feedback is generated. In particular, when a control signal is generated based on the detected input, an acoustic feedback is generated. As a result, the user can see whether his input has been accepted. Alternatively or additionally, if a parameter value is changed, an acoustic feedback can also be generated. The acoustic feedback is generated in a manner known per se, wherein different feedback can be output, for example in order to output the recognized gesture type, the set parameter value or other influencing variables. For this purpose, the acoustic feedback can also be formed dynamically, for example in a manner that is formed based on the set parameter value.

[0109] refer to Figures 5A to 5F , an exemplary embodiment for setting an air distribution caused by a fan is described. Here, the exemplary embodiment described above is taken as a starting point.

[0110] In this embodiment, Figure 2 The surface of the detection unit 2 shown in FIG. 1 comprises a key element 104, with which the distribution of the air directed into the interior of the vehicle 1 by the fan of the air conditioning unit 4 can be set. In the region of this key element 104, a display of the set distribution is also output.

[0111] exist Figures 5A to 5F In the diagram, the distribution is outputted by arrows 132, 133, 134, which are arranged at different heights relative to the passenger representation 131. The arrows 132, 133, 134 are formed by luminous areas that can be lit independently of one another, while the passenger representation 131 is printed on this surface and is therefore permanently visible. In this embodiment, the arrows 132, 133, 134 are arranged approximately at the height of the head, torso or foot region of the passenger representation 131.

[0112] In this exemplary embodiment, the key element 104 is used as a "toggle" switch. That is, a fixed sequence of different settings is predefined, and the next setting in the sequence is set each time the key element 104 is actuated. When the last setting is reached, in particular in the form of a periodic boundary condition, a jump is made to the first setting in the sequence. In other exemplary embodiments, when the last setting is reached, in particular in the form of a reflex boundary condition, the sequence can be continued in the opposite direction.

[0113] exist Figure 5A In the case shown in FIG. , air is introduced into the upper region of the vehicle interior. Figure 5B In the case shown in , it is additionally introduced in the foot area of ​​the interior. Figure 5C In the case shown in , air flows only into the foot area. Figure 5D In the case of Figure 5EFinally, Fig. 5F In the case of , the air is introduced in such a way that it blows onto a passenger in the vehicle 1 , for example, in the torso region.

[0114] In other embodiments, the air distribution is ordered in other sequences or formed in other ways.

[0115] refer to Figures 6A to 6C , a further embodiment for setting a parameter value by means of a slider element is described. Here, the embodiment described above is taken as a starting point.

[0116] The temperature slider 113 includes a horizontal straight line 113, at the ends of which are arranged temperature symbols 113a, 113b. In this embodiment, these temperature symbols are colored blue on the left and red on the right to symbolically represent low or high temperatures. Figure 2 , 4A and 4B, active slider areas 150, 150a, 150b, 150c are outlined by dashed lines.

[0117] exist Fig. 6A In the case shown in FIG. 1 , the active slider area 150 extends over the entire length of the line 113 and over a narrow area around the line. The user can change the value of the temperature parameter of the air conditioning unit 4 by a swiping gesture along the line 113 within the active slider area 150.

[0118] Here, in this embodiment, it is provided that when a swipe gesture pointing to the right is detected, the set temperature is increased, and when a swipe gesture pointing to the left is detected, the set temperature is decreased.

[0119] In this exemplary embodiment, the difference by which the temperature is changed depends on the operating trajectory along which the swipe gesture is carried out. In the case of maximum utilization of the slider length, that is to say a swipe gesture over the entire width of the line 113, the temperature can be increased or decreased by a certain interval, here up to an interval of 4° C. In the case of a swipe gesture over a shorter distance, the temperature parameter is changed proportionally less. That is to say, in the case of a swipe gesture, the slider element 113 represents a relative scale for the relative change of the set temperature.

[0120] In another embodiment, a sliding gesture is also provided, in which a speed exceeding a defined threshold value is detected for a swipe gesture. If such a sliding gesture is detected, the temperature parameter can be changed more quickly, for example by jumping to a maximum or minimum temperature or by changing a larger interval, for example twice the interval specified for a swipe gesture, that is to say 8° C.

[0121] exist Figure 6BIn the case shown in FIG. 1 , active slider areas 150a, 150b are constructed, which surround the temperature symbols 113a, 113b on the left or right side and the left or right part of the line 113. In this embodiment, similar to the above reference, Figure 4B The operation is carried out as described for the enlarged operating area 141 a , 141 b : here the active slider area 150 a , 150 b can be operated by tapping, holding or holding for a long time, wherein the set temperature parameter is gradually increased by this.

[0122] For example, the temperature may be lowered by 0.5° C. per tap in the left region 150 a , and the temperature may be raised by 0.5° C. per tap in the right region 150 b .

[0123] In other embodiments, the increase is performed in multiple steps in succession while maintaining and in particular while maintaining for a longer period of time, wherein the size of these steps can be determined, for example, based on the duration of the maintenance, so that, for example, after being maintained for a certain period of time, the parameter is changed in steps of 1°C in order to be able to achieve the change more quickly.

[0124] exist Figure 6C In the case shown, the construction is the same as in Figure 6B 150a, 150b. However, now additionally a central active slider area 150c is provided, which is arranged between the two lateral active slider areas 150a, 150b. In this exemplary embodiment, the central active slider area 150c extends over approximately 20% of the length of the line 113, while the two lateral active slider areas 150a, 150b occupy approximately 40% of this length on the left and right sides of the central active slider area. In the case shown here, the user can directly set the minimum, maximum or intermediate parameter value.

[0125] In this exemplary embodiment, it is provided that a hold in which a touch is held for longer than a determined threshold value in one of the active slider regions 150a, 150b, 150c is detected as an operation and evaluated as a direct selection. In this exemplary embodiment, if a hold gesture is detected in the left active slider region 150a, the minimum parameter value "LO" is set directly for the temperature. Similarly, in the case of a hold gesture in the right active slider region 150b, the maximum parameter value "HI" is set, and in the case of a hold gesture in the middle active slider region 150c, a predefined parameter value of 22° C. is set.

[0126] In other embodiments, other parameter values ​​may be selected directly.In addition, different areas may be set as active slider areas 150a, 150b, 150c, for example with different numbers or with different sizes of areas.

[0127] In other embodiments, other manipulations can be set for the direct selection, such as tapping the active slider area 150, 150a, 150b, 150c, in particular tapping the active slider area with multiple fingers at the same time. Other gestures can also be set, such as manipulating the active slider area 150a, 150b on the outside at the same time or manipulating the slider area 150, 150a, 150b, 150c with multiple fingers. Certain gestures can also be used to call certain functions or to set certain parameters. For example, the "SYNC" mode of the air conditioning unit 4 of the vehicle 1 can be activated, in which the same settings are set for different areas of the interior space of the vehicle 1, such as the driver and co-pilot areas. Different functions can also be turned on or off by the same element with the help of certain use cases.

[0128] exist Figures 6A to 6C The configuration and arrangement of the active slider areas 150, 150a, 150b, 150c shown in FIG. 1 can be configured as a static configuration of the detection unit 2. However, in this exemplary embodiment, it is provided that the detection unit 2 dynamically switches between these configurations depending on how the temperature slider 113 is operated, that is, which use case is detected. If an operation is detected by means of a swipe or slide gesture, this operation is changed according to the Fig. 6A The configuration with a narrow active slider area 150 shown in FIG. 1 is evaluated. If a tap gesture, a hold gesture or a long-hold gesture is detected, the user can automatically switch to the configuration according to Figure 6B or detection of a configuration of 6C, in particular in order to enable direct selection.

[0129] In other embodiments, the mentioned configurations may be combined or configured in other ways.

[0130] In other exemplary embodiments, the vehicle 1 comprises, alternatively or additionally, other devices for which the parameter value is detected by means of the detection unit 2. Such other devices may be, for example, a media playback or navigation system of the vehicle 1. The input is then detected in a manner analogous to the exemplary embodiments of the detection unit 2 and the method for inputting a parameter value explained above.

[0131] In principle, the above-described approaches to inputting parameter values ​​can be combined and matched with each other arbitrarily. In addition, the detection unit 2 can include different operating elements, which can also be arranged differently. For example, instead of running horizontally, the slider elements 112, 113, 114 can also run vertically or in other spatial directions.

[0132] In these exemplary embodiments, the control is performed by the control unit 3. However, different system configurations can be provided, for example with a control device of the detection unit 2, which takes over the control and / or, if necessary, evaluates the inputs present, preprocesses them and generates control signals, for example in order to set parameter values.

[0133] List of Reference Numerals

[0134] 1 Vehicle

[0135] 2 Detection unit

[0136] 3 Control unit

[0137] 4 Air conditioning units

[0138] La, Lb, Lc, Ld, Le light emitting elements

[0139] LED1, LED2, LED3, LED4, LED5, LED6, LED7 light emitting area

[0140] Sa, Sb, Sc sensor elements

[0141] 101, 102, 103, 104, 105, 106, 107 key components

[0142] 108 key element "AUTO"

[0143] 109 Key element "A / C"

[0144] 110 Button element "MENU"

[0145] 111 Button element "OFF"

[0146] 112 Slider element; fan slider; line

[0147] 112a Fan symbol (left side)

[0148] 112b Fan symbol (right side)

[0149] 113 Slider element; Temperature slider (left); Line

[0150] 113a Temperature symbol (left side)

[0151] 113b Temperature symbol (right side)

[0152] 114 Slider element; Temperature slider (right); Line

[0153] 115, 116 segment display device

[0154] 131 passengers said

[0155] 132 Arrow (up)

[0156] 133 Arrow(middle)

[0157] 134 Arrow (downward)

[0158] 141a Increased maneuvering area (left); surface area

[0159] 141b Increased maneuvering area (right); surface area

[0160] 142a to 142i Active maneuvering area; surface area

[0161] 149 Active slider area; surface area

[0162] 150 Active slider area; surface area

[0163] 150a Active slider area (left); surface area

[0164] 150b Active slider area (right); surface area

[0165] 150c Active slider area (middle); surface area.

Claims

1. A method for detecting a parameter value in a vehicle, wherein Detect input gestures within the detection area, where: The detected input gesture includes a first gesture type and a second gesture type; and If the detected input gesture is assigned to the first gesture type, determining a manipulation trajectory according to the detected input gesture and changing the parameter value by a value that depends on the length of the manipulation trajectory, If the detected input gesture is assigned to the second gesture type, determining a manipulation position according to the detected input gesture and setting a predetermined parameter value assigned to the manipulation position, If, in this case, the user first actuates a first button and then changes his selection and slides to another button, the actuation is only detected when the user releases the touch, wherein only then no further buttons can be actuated.

2. The method according to claim 1, It is characterized in that The detected input gesture also includes a third gesture type, wherein If the detected input gesture is assigned to the third gesture type, a manipulation position is determined as a function of the detected input gesture and the parameter value is changed by an increment determined as a function of the manipulation position.

3. The method according to claim 1 or 2, It is characterized in that The first gesture type includes a swipe gesture.

4. The method according to claim 1 or 2, It is characterized in that The second gesture type includes a tap gesture.

5. The method according to claim 4, It is characterized in that The second gesture type is determined according to the length of a time period during which the manipulation is performed within the detection area.

6. The method according to claim 1 or 2, It is characterized in that The parameter value is changed in such a way that, at each manipulation, the parameter value respectively takes on a value from a sequence of set values.

7. The method according to claim 1 or 2, It is characterized in that The detection area has a longitudinal extension and a transverse extension, wherein The transverse extension runs perpendicular to the longitudinal extension, and The longitudinal extension is at least three times the transverse extension.

8. The method according to claim 1 or 2, It is characterized in that When the input gesture is detected and / or when the gesture type is identified, an audible feedback is generated.

9. The method according to claim 1 or 2, It is characterized in that The detection area is the surface area of ​​the detection unit (2).

10. A device for detecting a parameter value in a vehicle, the device comprising: a detection unit (2), the detection unit having a detection area and being configured to detect an input gesture within the detection area, wherein the detected input gesture comprises a first gesture type and a second gesture type; and A control unit (3), wherein the control unit (3) is configured to: if the detected input gesture is assigned to the first gesture type, determine a manipulation trajectory based on the detected input gesture and change the parameter value by a value that depends on the length of the manipulation trajectory; if the detected input gesture is assigned to the second gesture type, determine a manipulation position based on the detected input gesture and set a predetermined parameter value assigned to the manipulation position, If, in this case, the user first actuates a first button and then changes his selection and slides to another button, the actuation is only detected when the user releases the touch, wherein only then no further buttons can be actuated.

Images