DE102019204051A1 - Method and device for detecting a parameter value in a vehicle - Google Patents

Abstract

In the method for detecting a parameter value in a vehicle, an input gesture is detected in a detection area. The input gesture captured is assigned to a first or second gesture type. If the captured input gesture has been assigned to the first gesture type, an actuation trajectory is determined on the basis of the captured input gesture and the parameter value is changed by an amount dependent on a length of the actuation trajectory. If the captured input gesture has been assigned to the second gesture type, an actuation position is determined on the basis of the captured input gesture and a predetermined parameter value assigned to the actuation position is set. The device for capturing a parameter value in a vehicle comprises a capturing unit (2) which has a capturing area and which is configured to capture an input gesture in the capturing area, and a control unit (3) which is configured to display the captured input gesture assign the first or second gesture type. The device is set up to implement the method.

Description

The present invention relates to a method and a device for detecting a parameter value in a vehicle.

In modern vehicles, in particular motor vehicles, a large number of electronic devices are provided, the setting and operation of which must be made possible for the driver or another vehicle occupant. These devices include, for example, an air conditioning unit through which air can be directed into certain areas of the vehicle interior and by means of which further elements such as seat heaters can also be controlled. Other devices are, for example, a navigation system, driver assistance systems and communication and multimedia units, such as a telephone system or devices for reproducing music and speech such as a radio or a CD player.

Different operating units are known for operation. Typically, however, the driver is faced with the challenge of having to operate some very complex facilities. He must devote part of his attention to grasping a large number of operating elements and operating them in such a way that the settings can be made or changed in the desired manner. This often requires the implementation of very precise operator actions, although the driver may only avert his gaze from the traffic situation for a very short time. In doing so, incorrect operations should be avoided, which can significantly impair driving comfort and make further operator actions necessary.

At the same time, set parameters must be easy to grasp for the user in order to be able to assess whether a currently set parameter value should be changed or whether suitable settings can be retained.

From the DE 10 2016 200 110 A1 a device for operating a heating / air conditioning system of a means of locomotion is known in which a finger groove is formed in an essentially flat surface, in which swiping gestures can be detected.

The present invention is based on the object of providing a method and a device of the type mentioned at the outset which enable the most versatile and quick operation possible.

According to the invention, this object is achieved by a method having the features of claim 1 and a device having the features of claim 10. Advantageous refinements and developments result from the dependent claims.

In the method according to the invention for detecting a parameter value in a vehicle, an input gesture is detected in a detection area and the detected input gesture is assigned to a first or second gesture type. If the captured input gesture has been assigned to the first gesture type, an actuation trajectory is determined on the basis of the captured input gesture and the parameter value is changed by an amount dependent on a length of the actuation trajectory. If the captured input gesture has been assigned to the second gesture type, an actuation position is determined on the basis of the captured input gesture and a predetermined parameter value assigned to the actuation position is set.

That is, in the case of an input gesture of the first gesture type, the parameter value is recorded relative to the current value, while in the case of an input gesture of the second gesture type, an absolute value is recorded. The method therefore advantageously combines the advantages of relative and absolute input options for parameter values.

Since the change in an input gesture of the first gesture type depends only on the length of the actuation trajectory, the input gesture is only changed relative to the currently set parameter value. For example, a certain length of the actuation trajectory, for example when wiping along a section of a slider element with a certain length, is assigned a certain amount by which the parameter value is increased or decreased. In contrast, in the case of an input gesture of the second gesture type, the set parameter is assigned directly to the actuation position. This means that actuation, for example of a slider element, at a specific actuation position leads directly to the setting of a specific parameter value. There is therefore an absolute association between the parameter value and the actuation position.

While the setting of a value that is far removed from the currently set parameter value by means of a relative change may require several actuations, such a change can take place more quickly by means of an absolute operation. Conversely, the parameter can be set particularly precisely by setting it using relative operation, for example by changing it in several small steps. In the process, the user can quickly and easily select the appropriate input gesture decide in a simple way which type of operation seems particularly useful in the current situation.

According to the invention, an actuation object is used to carry out an input gesture, in particular the hand or a finger of the user. In the following explanations, the user's finger is the object to be actuated; however, the information should be generalized to other objects of actuation, such as a pen.

In the context of the invention, an “input gesture” is understood to mean a specific position of the actuation object or a specific movement that is carried out with the actuation object. Input gestures can be designed in a manner known per se. They include, in particular, tapping gestures, swiping gestures and holding gestures as well as combinations of several such gestures, possibly executed immediately one after the other. Further gestures, for example combined with a rotary movement, can also be provided. The gestures are carried out in the detection area, which in particular comprises a surface of a detection unit. By controlling the user interface by means of an input gesture, the user is provided with a particularly simple and intuitive input option.

The detection of gestures is not necessarily limited to one surface. Rather, gestures can be carried out in a detection area of practically any configuration and, if necessary, detected with different detection methods. For example, a gesture can also be recorded in three-dimensional space. In particular, a virtual operating object, for example a virtual button, can be configured. For example, the gesture can be recorded in a spatial region in which the virtual operating object is generated, for example, by means of a projection or by virtual reality methods, and a gesture is recorded with reference to this virtual operating object. In particular, a position, a gesture trajectory, a direction and / or a speed of a gesture are recorded for this purpose.

The gesture can be detected, for example, using optical or electronic detection methods; a laser, electromagnetic fields in the microwave range or other methods can be used for detection.

The input gesture includes, for example, a touch at a specific position within the detection area, an actuation position and duration being detected until the touch is released. It can further comprise a swiping gesture, a movement from a start to an end position being carried out during the touch. In this movement, the touch describes an actuation trajectory, that is, a chronologically ordered and coherent sequence of actuation positions. The parameter value is then set according to the entry.

In the case of an input gesture of the first gesture type, absolute parameter values are assigned to the positions of the detection area and can be selected by actuating these positions. In the case of an input gesture of the second gesture type, on the other hand, the currently set parameter value is changed, that is, a relative change is made. For this purpose, a length is determined for the actuation trajectory, in particular the distance between the start and end position of an actuation, and a difference to the currently set parameter value is determined on the basis of the length. The parameter value can be increased or decreased on the basis of this amount, for example depending on a direction of the input gesture. For example, with a curve from left to right, the parameter value can be increased and with the opposite curve, it can be decreased. Other changes depending on the direction, such as vertical or oblique, are also conceivable.

By selecting the appropriate input gesture, the user can easily determine how the parameter value should be changed. With the same detection area, in particular the same control element in the vehicle, different setting options for the parameter value can therefore be implemented. In the same surface area, a specific parameter can be selected directly by selecting an actuation position, while an input gesture of the first gesture type with a specific actuation trajectory in the surface area leads to a relative change in the parameter value.

In one embodiment of the method according to the invention, the captured input gesture can also be assigned to a third gesture type, wherein, if the captured input gesture has been assigned to the third gesture type, an actuation position is determined based on the captured input gesture and the parameter value is changed by an increment determined based on the actuation position. This advantageously enables more precise operation that is adapted to the current situation by creating a further possibility of an input relative to the currently set parameter value.

When implementing the parameter value, a fixed predetermined increment is added or added to the current parameter value with each actuation by an input gesture of the third gesture type subtracted from it. Different partial areas of the detection area can be provided for addition and subtraction or different amounts of the increment. As a result, three different gesture types can be used for inputs in the same detection area, the parameter value being changed in three different ways. This has the advantage of a particularly compact design, especially with the installation space typically limited in vehicles. At the same time, the user can use the same control element with a certain detection area in multiple ways.

In a further embodiment, the first type of gesture comprises a swiping gesture. The parameter value can thus advantageously be set particularly precisely and simply, but nevertheless quickly.

In particular, a direction, a speed and / or a distance is determined on the basis of the swiping gesture and the parameter value is changed as a function of the determined direction, speed and / or the determined distance. In particular, a start and an end position of the swiping gesture are determined for this purpose, at which an actuation begins and ends in the detection area, for example by touching and later releasing the touch; the distance and / or a direction between these positions can be determined. Furthermore, a time between the start and end position of the swiping gesture can be determined in order to then determine the speed of the swiping gesture.

For example, the parameter value can be increased in one direction and decreased in another direction, for example by changing the amount of the change based on the distance between the start and end position and a difference value per unit of length. The parameter value is then changed, for example, by a greater amount, the greater the certain distance between the start and end position. Furthermore, the difference value can be determined as a function of the speed, for example a larger difference value at a higher speed; In particular, a further gesture type can be defined in this way, for example a “swipe” at a higher speed, which can lead, for example, to a larger change in the amount of the parameter value per unit of length. Conversely, the change in the parameter value when the speed of the swiping gesture falls below a threshold value can be made smaller in terms of amount, for example in order to facilitate fine adjustment of the parameter value. In addition, a threshold value for the distance and / or the speed can be defined, the wiping gesture leading to a predetermined change in the parameter value when the threshold value is exceeded. For example, depending on the direction of the swiping gesture, a swipe can automatically lead to the setting of a maximum or minimum parameter value.

In a further development, the second type of gesture includes a tap gesture. This can for example be designed as a tap, hold, “long push” or “long press”. The parameter value can thus advantageously be set particularly precisely without the user's attention having to be focused on the operating process for a long time.

For a tapping gesture, in particular the actuation position in the detection area and the duration of the actuation are recorded.

It is not always possible to make a touch in such a way as to avoid any movement along the surface, although a tap gesture is intended to be made. To distinguish between swiping and tapping gestures, in particular a distance between the start and end positions of the touch or a maximum distance along an actuation 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 swiping gesture; if it falls below the threshold value, it is a tapping gesture.

In one embodiment, the second gesture type is determined as a function of the duration of a time interval during which an actuation was carried out in the detection area, the actuation being detected in particular continuously. In this way, further gesture types can advantageously be differentiated from one another in a particularly simple manner.

In this embodiment, in the case of the second type of gesture, a start time and an end time of a touch are detected. A contact duration can be determined on the basis of these points in time and compared with a threshold value. If the threshold value, for example 400 ms or 800 ms, is exceeded, it is an input gesture of the second gesture type; if it is not reached, it is, for example, an input gesture of the third gesture type. In the case described, the second type of gesture corresponds to a hold or a so-called “long push” or “long press”, while the third type of gesture corresponds to a tap.

For example, it can be provided that an input gesture of the first gesture type can be carried out in the entire detection area and always results in the same change in the parameter value regardless of the specific location of the actuation. This means that only the length of the actuation trajectory is evaluated, not however, their location within the detection range. In the same example, two partial areas on the left and right in the detection area are designed in such a way that a tap, that is, an input gesture of the third gesture type, leads to an incremental decrease or increase in the parameter value. In the same example, three sub-areas of the detection area are also designed such that holding the actuation, that is, an input gesture of the second gesture type, leads to the direct setting of a specific parameter value; In particular, a minimum parameter value is set by a sub-area arranged on the left, a maximum parameter value is set by a sub-area arranged on the right, and a certain intermediate parameter value is set by a sub-area arranged in the middle.

In a further embodiment, the parameter value is changed in such a way that the parameter value assumes the next value in each case from an ordered series of setting values with each actuation. This advantageously makes it possible to switch between predefined settings particularly quickly and easily. In particular, it is a so-called toggle switch.

This switching between settings in an ordered sequence is carried out, for example, with an input gesture of the second or third gesture type, in particular with a tap. Furthermore, the switchover can take place during a long stop, in which case a switchover is made to the next setting in each case after a certain time interval has elapsed; in this case the user only has to hold the actuation long enough to run through several settings one after the other.

In a further development, the detection area is a surface area of a detection unit. As a result, a touch-sensitive surface can advantageously be used particularly efficiently.

The detection area is designed in particular on a touch screen or in some other known manner. For example, capacitive or resistive sensors can be used to detect an actuation.

In a further exemplary embodiment, the detection area can be designed in a different way. For example, as a spatial area, in particular above a surface or in the vicinity of a control element.

In one embodiment, the detection area has a longitudinal extension and a transverse extension. The transverse extent runs perpendicular to the longitudinal extent and the longitudinal extent is at least twice, preferably three times, the transverse extent. The detection area is thus elongated and is therefore advantageously particularly suitable for the intuitive setting of a parameter value. It can therefore be, for example, a slider element through which a functionality of an analog slider is implemented.

In a further embodiment, when the input gesture is detected and / or when a type of gesture is recognized, acoustic feedback is generated. The user can thereby advantageously see particularly easily whether his input has been accepted.

The acoustic feedback can alternatively or additionally also be generated when the parameter value is changed. The acoustic feedback is generated in a manner known per se. Different responses can be selected or generated dynamically, for example depending on the recognized gesture type, the set parameter value or other influencing variables.

The inventive device for capturing a parameter value in a vehicle comprises a capturing unit which has a capturing area and which is set up to capture an input gesture in the capturing area, and a control unit which is set up to assign the captured input gesture to a first or second gesture type . In this case, the control unit is also set up, if the recorded input gesture was assigned to the first gesture type, to use the recorded input gesture to determine an actuation trajectory and to change the parameter value by an amount that depends on a length of the actuation trajectory, or if the recorded input gesture is to the second gesture type was assigned to determine an actuation position based on the detected input gesture and to set a predetermined parameter value associated with the actuation position.

The device according to the invention is designed in particular to implement the method according to the invention described above. The device thus has the same advantages as the method according to the invention.

In a further embodiment, the device has a surface structure in the area of the touch-sensitive surface, in particular a depression or elevation. As a result, operable areas can advantageously be found and operated particularly easily.

In particular, a feeler aid is provided in this way, with the aid of which the user can detect the position and extent of the detection areas. For example, a tactilely detectable surface deformation can include a locally changed roughness. Furthermore, a substantially punctiform elevation or depression can be formed on the surface, or an elongate depression or elevation can be provided. Furthermore, more complex shapes are conceivable, for example a depression with a ridge running therein or further markings that can be felt. A depression can also run in a straight line or along a curved line.

In a further embodiment, the device further comprises a sensor for detecting an approach to the touch-sensitive surface in a manner known per se. If such an approach is detected, the lighting elements can be controlled in such a way that they emit at least light of the basic intensity in order to display the position of the lighting elements to a user or to indicate an input option, for example.

In particular, the parameter value relates to a setting of a temperature, a fan or a media playback device of the vehicle.

The invention will now be explained on the basis of exemplary embodiments with reference to the drawings.

• 1 zeigt ein Fahrzeug mit einem Ausführungsbeispiel der erfindungsgemäßen Vorrichtung,
• 2 zeigt weitere Details des Ausführungsbeispiels der erfindungsgemäßen Vorrichtung,
• 3A bis 3C zeigen ein Ausführungsbeispiel einer Ausgabe eines Parameterwerts mittels einer Segmentanzeige,
• 4A und 4B zeigen ein Ausführungsbeispiel für die Einstellung von Parameterwerten mittels eines Slider-Elements,
• 5A bis 5F zeigen ein Ausführungsbeispiel für die Einstellung einer Luftverteilung durch ein Gebläse und
• 6A bis 6C zeigen ein weiteres Ausführungsbeispiel für die Einstellung eines Parameterwerts mittels eines Slider-Elements.

The invention will now be explained on the basis of exemplary embodiments with reference to the drawings.

• 1 shows a vehicle with an embodiment of the device according to the invention,
• 2 shows further details of the embodiment of the device according to the invention,
• 3A to 3C show an embodiment of the output of a parameter value by means of a segment display,
• 4A and 4B show an exemplary embodiment for setting parameter values using a slider element,
• 5A to 5F show an embodiment for setting an air distribution by a fan and
• 6A to 6C show a further exemplary embodiment for setting a parameter value by means of a slider element.

In reference to 1 a vehicle with an embodiment of the device is explained.

A vehicle 1 comprises a detection unit 2 that come with a control unit 3 is coupled. With the control unit 3 is also an air conditioning unit 4th coupled.

In the exemplary embodiment, the detection unit 2 one to a user in the vehicle 1 facing surface. Different symbols are arranged on this surface, some of which can be backlit by light sources, in particular LEDs. Areas with luminous areas are also formed which are covered by a layer of paint in such a way that the luminous areas are essentially only visible to the user when they are actually illuminated, while they are practically invisible when the luminous areas are not illuminated. In particular, a display designed as a so-called black panel is used.

The surface of the registration unit 2 can be flat. It can also have depressions and / or elevations that can be grasped by a user with a finger and that can serve as a feeler to specifically identify certain areas of the surface. For example, such filling aids can highlight a mechanical switch or a touch-sensitive area of the surface, which is designed, for example, as a button element or as a slider element.

The registration unit 2 also includes a film produced in the IML process (in-mold labeling) and back-injected with plastic. In the exemplary embodiment, it also includes sensor elements Sat , Sb , Sc , which are designed here as capacitive sensor elements. The sensor elements Sat to Sc are so behind the surface of the registration unit 2 arranged so that they are not visible to the user. The sensor elements Sat to Sc are designed in a manner known per se so that they can detect an actuation by an actuating element. For this purpose, they each have a detection area, which is, for example, an area of the surface of the detection unit 2 and / or comprises a spatial region arranged above the surface. In particular, a finger of the user can be used as an actuating element. In the exemplary embodiment, the sensor elements detect Sat to Sc an actuation based on the entry of the actuating element into the detection area, based on a touch of a surface, based on its distance from a sensor element Sat to Sc based on a movement in the detection area and / or based on a period of time during which the actuating element is detected. This actuation is then carried out by the registration unit 2 and / or the control unit 3 evaluated.

In the exemplary embodiment, the sensor elements are Sat to Sc arranged equidistant from one another along a straight line. A slide or slider element is implemented along this line. Its function is explained in detail below.

In further exemplary embodiments, the detection unit 2 alternatively or additionally, touch-sensitive surface areas formed in a different manner known per se. This enables actuation by an actuation element in a manner analogous to the mode of operation of the sensor elements explained above Sat to Sc are recorded.

In particular, the acquisition unit generates 2 when an actuation is detected, a control signal and transmits this to the control unit 3 . A parameter value can be set, either the registration unit 2 even the input has already been processed to such an extent that it assigns a specific parameter value to it, or the control unit 3 this processing of the by the registration unit 2 generated input or control signal.

The detection unit also includes 2 Lighting elements La , Lb , Lc , Ld , Le arranged in the form of a segment display adjacent to one another along a linear direction of extent. The light elements La to Le are independent of each other by the control unit 3 controllable.

The air conditioning unit 4th is formed in a manner known per se and in the exemplary embodiment includes, among other things, a heater for the vehicle 1 , Seat heaters for the driver and front passenger seats, a steering wheel heater, window heaters and a fan for introducing air into the interior of the vehicle 1 , whereby the direction, distribution, intensity and temperature of the incoming air can be adjusted.

In reference to 2 will be related to the above 1 explained embodiment of the device explained in more detail.

2 shows a view of the user in the interior of the vehicle 1 facing surface of the registration unit 2 . This surface is essentially designed as a horizontally stretched rectangle. In the upper area there are button elements next to each other 101 , 102 , 103 , 104 , 105 , 106 , 107 arranged. In the exemplary embodiment, these are designed as touch-sensitive surface areas which can be actuated by touching an actuating element, in particular a finger of the user. In 2 are the individual pushbutton elements 101 to 107 assigned touch-sensitive areas indicated by dashed lines. Light areas are also formed within these areas, which can be illuminated with light of a certain intensity and / or color by activating an LED arranged behind them, for example to show the status, the activity or a setting of the respective button element 101 to 107 assigned function. The control of the registration unit 2 and possibly the evaluation of by the registration unit 2 detected signals are made by the control unit 3 .

In a middle and lower area of the surface of the registration unit 2 are also further button elements 108 , 109 , 110 , 111 educated. In the exemplary embodiment, these too are formed by means of touch-sensitive surface areas, which are indicated by dashed lines. By pressing the other button elements 108 to 111 further functions can be called up, activated or set. For example, by pressing the button element 110 "MENU" a menu representation on a display in the vehicle 1 be called. By pressing the button element 111 The air conditioning unit can "OFF" 4th turned off. Using the button element 109 "A / C" can be used by the air conditioning unit in the air conditioning unit 4th of the vehicle 1 activated, by means of the button element 108 “AUTO” can be an automatic mode of the air conditioning unit 4th to be activated.

In other embodiments, the button element 101 to 111 be designed as mechanical switches, in particular pushbutton switches. In addition, other functions can alternatively or additionally be provided in further exemplary embodiments.

In the middle and lower area of the surface of the registration unit 2 are also segment displays 115 , 116 arranged, which are suitable in the embodiment for outputting a two-digit temperature value with one decimal place. There are also slider elements here 112 , 113 , 114 arranged for setting a temperature and a blower level. The adjustable functions of the air conditioning unit 4th are indicated by symbols on the surface. The slider elements 112 to 114 each comprise a horizontal straight line of a certain length, along which a depression on the surface of the detection unit 2 is trained. Behind it, hidden by the surface, are sensor elements Sat to Sc indicated by each touch in the area of a slider element 112 to 114 is detectable, in particular a position of the touch and possibly a movement along the slider element 112 to 114 is captured.

In the exemplary embodiment, the line is the slider element 112 to adjust the fan, that is, the fan slider 112 , through light elements arranged behind it La to Le can be illuminated in segments.

With reference to the 3A to 3C FIG. 11 shows an embodiment of an output of a set level of a fan of the air conditioning unit 4th explained by means of a segment display. In particular, the above with reference to the 1 and 2 illustrated embodiment of the device assumed. The segment display of the exemplary embodiment is in particular in the area of the fan slider 112 arranged and the control is carried out by the control unit 3 .

In the example there are seven luminous areas LED1 to LED7 , in particular illuminable by LEDs, arranged next to one another along a straight line and controllable independently of one another. The number of luminous surfaces LED1 to LED7 corresponds to the activated level of the fan, that is, there are as many levels as there are illuminated surfaces LED1 to LED7 intended. In the exemplary embodiment, there is also a diffuser over the luminous surfaces LED1 to LED7 arranged so that illuminated illuminated areas arranged next to one another LED1 to LED7 appear to form a continuous line from the user's perspective.

The in 3A The case shown is the fan of the air conditioning unit 4th deactivated. The graph shows the intensity of the light emission on the Y-axis during the individual luminous areas LED1 to LED7 Positions along the X-axis are assigned. None of the illuminated areas are lit, which is shown in the diagram of the 3A is represented by practically invisible columns.

In the cases of 3B and 3C is the third stage of the fan of the air conditioning unit 4th activated. The graphs show the intensity of the illuminated areas LED1 to LED7 emitted light depending on the position or on the respective illuminated area LED1 to LED7 . In the case of the 3B is a night mode, in which case the 3C a day mode of the segment display is activated. The first three light-emitting areas are controlled in such a way that they light up with 60% or 100% of a maximum intensity, while the remaining four light-emitting areas are controlled in such a way that they light up with only 10% or 20% of the maximum intensity. This means that in day mode the display is carried out using a light intensity that is higher than in night mode in order to make the display easy to read even in strong ambient light during the day, but without disturbing or dazzling the user with too high an intensity at night in low ambient light.

In the exemplary embodiment, “overlighting” from a brightly illuminated luminous area to an adjacent, unlit or less illuminated luminous area is concealed in that all luminous areas are illuminated with at least one basic intensity. Only the illuminated areas actually used for the display are illuminated with a higher display intensity. This means that all the luminous areas not used to indicate the blower stage are illuminated uniformly instead of having different intensities due to the over-lighting, depending on the distance from a luminous area illuminated with a higher intensity.

In order to achieve this uniform lighting with the basic intensity, it may be necessary to apply different currents to the LEDs; in particular, this compensates for over-lighting. For example, the in 3B The case shown should be provided that the first three LEDs LED1 , LED2 , LED3 be operated with a first current for 60% of the maximum intensity, with overlighting leads to that in the area of the two adjacent luminous areas LED4 and LED5 a certain intensity is already being emitted. The LEDs of these luminous areas LED4 and LED5 are therefore only operated with less current than the LEDs of illuminated areas positioned further away LED6 and LED7 in order to achieve a uniform basic intensity of the LEDs LED4 to LED7 to reach. For example, the directly adjacent illuminated area LED4 with 5% and the other neighboring luminous area LED5 operated at 7%, while the more distant illuminated areas LED6 and LED7 operated at 10%. In further exemplary embodiments, other light sources, in particular light into the luminous areas LED1 to LED7 , taken into account and compensated for by appropriate control of the LEDs.

In further exemplary embodiments, other ratios between the intensities and different modes can be provided. For example, an ambient brightness can be detected and the light intensity of the activated luminous surfaces can be dynamically adapted to the detected ambient brightness. Furthermore, values of basic intensity and display intensity that are assigned to one another can be fixedly predetermined, as is the case in the exemplary embodiment. Furthermore, the basic intensity can be, for example, a certain fraction of the display intensity or the basic intensity can be determined in some other way, for example using a physical model in which the intensity of an overlighting is determined as a function of the display intensity and a basic intensity is then formed in this way that the overlighting is concealed by this.

In a further exemplary embodiment, even when the fan is deactivated, all the luminous areas are illuminated with a basic intensity that is determined, for example, on the basis of an ambient brightness. In this way, the illuminated surfaces can be used as design elements and to display a level “0”. The user can then in particular recognize that a display for setting the fan is located in a certain area and / or that an operation for setting the fan can be performed in such an area.

In further exemplary embodiments, the luminous areas can be used to display another parameter. They can also be linked to various slider elements 112 , 113 , 114 or other displays and controlled in the manner described.

Furthermore, a higher number of luminous areas can be used, in particular more luminous areas than can be set. For example, intermediate levels can be displayed in this way or during operation, for example by means of the fan slider 112 , the illuminated surfaces can indicate the position of the actuating object on the slider 112 consequences. They can also be arranged next to one another instead of a linear arrangement, for example in a two-dimensional matrix.

With reference to the 4A and 4B an exemplary embodiment for setting parameter values using a slider element is explained. In particular, the above with reference to the 1 and 2 illustrated embodiment of the device assumed. The control takes place in particular by means of the control unit 3 .

The following explanations refer to the slider element as an example 112 , which in the embodiment as a fan slider 112 the registration unit 2 for setting a fan of the air conditioning unit 4th assigned. The method can of course also be used for other slider elements 112 , 113 , 114 as well as to collect other parameter values.

On the surface of the registration unit facing the user 2 , such as in 2 shown is in the area of the fan slider 112 a horizontal line with a fan symbol at the left end 112a for a switched off state of the fan and at the right end a fan symbol 112b is arranged for a maximum active state of the fan.

Light sources are arranged behind the surface, LEDs in the exemplary embodiment through which both the line 112 , as well as the symbols 112a , 112b can be illuminated. In the exemplary embodiment is also the line 112 can be illuminated as a segment display, that is, behind here light sources are arranged in a row next to each other so that individual areas of the line 112 can be illuminated independently of each other with different intensities. This, for example, the set level of the fan according to the above with reference to the 3A to 3C explained procedure. The symbols 112a , 112b and the line 112 can be permanently visibly printed on or made visible by means of a black panel technique only if they are illuminated from behind.

In the 4A and 4B are touch-sensitive areas 149 , 141a , 141b , 142a to 142i indicated by dashed lines. The sensor elements detect in these areas Sat to Sc an actuation by an actuation object, as already explained above, or the detection can take place in another way. When actuated, according to the exemplary embodiment, the surface of the detection unit 2 touched in a touch-sensitive area by the actuation object. In further exemplary embodiments, instead of a touch, it is also possible to detect when the actuating object is located in a specific spatial area or at a position, for example just above the surface of the detection unit 2 .

In the exemplary embodiment, an actuation at a specific position is detected in that the sensor elements Sat to Sc Detect signals of different strengths depending on the position of the actuating object. For example, the strength of a signal detected by a capacitive sensor depends on the distance from an actuating object entering a detection area. In the exemplary embodiment, the user touches the slider element 112 at any point or he moves the position of his movement along the slider element 112 . Depending on the current position, the sensor elements Sat to Sc different signal strengths detected. The position is determined on the basis of these signal strengths and a parameter value is set as a function of the determined position.

In this way, different spatial areas, in particular surface areas, can be on the surface of the detection unit 2 , are used as separate areas in order to record operations therein. In particular, these actuations can also be evaluated differently depending on the respective surface area. For example, a surface area can be used as a button element with a certain response behavior, i.e. with certain threshold values for time intervals for actuation, or as a slider Element can be configured with a different response behavior.

This means that the surface areas within which actuations can be detected can only be designed virtually, instead of requiring a separate area for each arbitrary area. A coherent area can be formed within which the position of an actuation or an actuation trajectory is detected, or individual areas can be formed in which an actuation is detected when it is assigned to any position within these individual areas.

In the exemplary embodiment it is also provided that the set level is indicated by a segment display in the area of the slider element 112 is shown. This is done with reference to the above 3A to 3C explained type. When the slider element is actuated 112 at one position this is illuminated at the corresponding position and the corresponding level of the fan is set. In the exemplary embodiment, however, it is not only detected in which step the actuating position is currently located, but an approach to surrounding areas is also detected. In particular, it is detected when the actuation object, for example the user's finger, moves in the direction of another step and this approach is also displayed. For example, the user can put his finger along the slider element 112 move and approach an area that is assigned to a next stage of the fan. The lighting element arranged in this area is illuminated with increasing intensity the closer the user gets to the area of the next step. When the user reaches the next area, it is illuminated with the normal display intensity.

In contrast to known touch-sensitive surfaces, the parameter value in the exemplary embodiment of the method is detected by means of fewer sensors, particularly flexibly and / or with a higher resolution. While known methods provide at least one sensor element for each detectable position, in the method explained fewer sensors are used in a particularly space-saving, cost-efficient and simple manner.

Various parameters of the actuation are recorded and evaluated, for example a start position at which the contact begins, an end position at which the contact ends, and a trajectory along which the actuation object moves along the surface from the start to the end position. Alternatively or additionally, the duration of the contact and / or the stay at a specific position can be recorded. If necessary, a direction and / or speed of a movement along the surface can also be determined and evaluated.

A number of activation options can be distinguished, which in particular denote different types of activation for entering or selecting a parameter value and which are also referred to below as “use cases”. These can be used, for example, for button or slider elements both in touch-sensitive surface areas and for mechanical switches.

The user can actuate the touch-sensitive area by “tapping”, a time interval Δt being recorded between the beginning and the end of the touch that is shorter than a specific threshold value t ₀ : Δt <t ₀ . The threshold value t ₀ can be, for example, 400 ms or 800 ms. The point in time at which an actuation event is detected and, for example, a parameter value is changed, is here typically the point in time at which the touch is released. Alternatively, an actuation event can also be recorded when the touch begins, in which case each touch already triggers a tap event. Typical applications for tapping are, for example, switching a function on and off, incrementally changing parameter values or directly selecting a parameter value by tapping a button.

The user can also hold the touch at a specific position or in a specific surface area for a longer time interval Δt than a threshold value t ₁ : Δt> t ₁ . The threshold value t ₁ can be, for example, 400 ms or 800 ms. Such an operation can be referred to as “hold”, “long press” or “long push”. A corresponding hold event can be triggered as soon as the held time interval Δt exceeds the threshold value t ₁ or when the contact is released. Further conditions can be defined that the touch must be released at a certain position or in a certain area in order to trigger a hold event; In this case, the user can prevent the triggering by moving the actuating object to another area, for example to another button element.

Furthermore, a “multiple hold” can be carried out in that the touch of a first surface area lasts longer than a threshold value t ₁ and then changes over to a second surface area, which is then also touched for longer than the threshold value t ₁ . In this way, for example, several pushbutton elements can be actuated without having to lift the actuating object. To do this, a first button element is actuated with a "hold" gesture and then the user with the actuation object slides on to another button element without releasing the touch.

In the case of a “permanent hold”, an actuation is detected for a time interval Δt longer than a threshold value t ₀ and a new actuation is detected for each multiple of the threshold value t ₀ . The user can trigger a multiple actuation by holding the actuation for a corresponding multiple of the threshold value t ₀ .

Furthermore, a “wiping” can be detected as an actuation, for example when the actuation object stays in a surface area for a time interval Δt shorter than a threshold value t ₀ and then actuates an adjacent surface area. The actuation can then be detected, for example, for the adjacent surface area when the touch is released, taking into account in particular whether the user touches the adjacent surface area for a time interval Δt shorter than the threshold value t ₀ or whether, for example, a hold is carried out here.

Furthermore, a “swipe” can be detected as an actuation, the position of the contact moving from a first to a second surface area and, in the process, in particular further surface areas being crossed. The speed at which the position changes is also taken into account and, for example, a parameter value can be changed more quickly than when wiping. A “swipe” can in particular be detected when the speed of the swiping gesture exceeds a threshold value.

The in 4A The case shown is the fan slider as a connected, active slider area 149 which is defined along the entire length of the line 112 as well as the adjacent symbols 112a , 112b extends. Inside the area 149 this active slider area 149 the positions of contacts and actuations can be recorded. When the object to be actuated is along the length of the fan slider 112 moved, the position of the touch, especially during a swiping gesture, is continuously recorded and the set level of the fan follows this position. For example, a lowest level is the left area of the fan slider 112 or the left fan symbol 112a assigned, while a highest level is assigned to the right area of the fan slider 112 or the right fan symbol 112b assigned. In between spread over the length of the fan slider 112 Areas of the same size, each of which is assigned an intermediate level.

In the example, a level is set when the operating object reaches a position assigned to this level. In further exemplary embodiments, the step is not set until the touch is released, the step then being set which is assigned to the position when the touch is released.

The in 4B In contrast, the case shown are individual touch-sensitive surface areas 142a to 142i educated. These are operated by tapping, so that the user can adjust the fan speed directly by selecting a touch-sensitive surface area 142a to 142i can choose.

In addition, the two extreme left 142a, 142b and right 142h, 142i touch-sensitive surface areas become enlarged actuation areas 141a , 141 b summarized. By tapping one of these enlarged operating areas 141a , 141b the user can incrementally increase or decrease the level of the fan. By permanently holding in one of the enlarged operating areas 141a , 141b the level is gradually increased or decreased depending on the time interval during which the touch is held.

In the embodiment, by enlarging the operating areas 141a , 141b the possibilities for the direct selection of a level of the fan are limited insofar as the lowest and highest level cannot be selected directly. Instead, these stages are only achieved in that, starting from the next adjacent stage, the corresponding enlarged actuation area 141a , 141b tapped again or retained permanently.

The ones in the 4A and 4B The cases shown are not static configurations of the detection unit in the exemplary embodiment 2 to understand. Rather, the registration unit switches 2 dynamically between the two configurations, depending on the type of actuation detected, i.e. the use case detected. That is, when the user makes a swiping gesture, the actuation is interpreted as described above with reference to 4A explained. If, on the other hand, the user performs a tapping gesture or a permanent holding gesture, this gesture is evaluated as with the one with reference to 4B explained configuration.

In further exemplary embodiments, the configurations mentioned can be combined or designed in other ways.

In the exemplary embodiment it is also provided that the button elements 108 to 111 that are adjacent to slider items 112 , 113 , 140 are arranged to be blocked for the detection of an actuation after a swiping gesture in the area of one of the slider elements 112 , 113 , 114 was recorded. This prevents the user from accidentally touching one of the button elements 108 to 111 is actuated when it moves the actuation object over the area of a slider element with a swiping gesture 112 , 113 , 114 addition continues.

The blocking of the neighboring push button elements 108 to 111 or further touch-sensitive surfaces or switching elements is carried out for a specific blocking time interval. This blocking time interval begins in particular at the point in time at which the slider element is touched 112 , 113 , 114 is ended, and it can in particular be determined dynamically, for example on the basis of the speed of the swiping gesture and / or a driving speed of the vehicle 1 .

In further exemplary embodiments, a distance from a slider element 112 , 113 , 114 defined, within which no actuation is detected in the blocking time interval. This distance can also be determined dynamically, for example based on the speed of the swiping gesture, a longitudinal extension of the slider element 112 , 113 , 114 and / or based on the driving speed of the vehicle 1 . On the basis of the distance, in particular a surface area can be defined which has a longitudinal extension of the slider element 112 , 113 , 114 continues; for example, an area above or below a horizontally running slider element is then 112 , 113 , 114 not blocked, while laterally adjoining areas are blocked during the blocking time interval.

In a further exemplary embodiment, the adjacent button elements are blocked 108 to 111 only if it has been detected that a swiping gesture at least as far as one side of the slider element 112 , 113 , 114 or beyond. In further exemplary embodiments, certain surface areas of the detection unit can be blocked 2 triggered by events other than a swiping gesture, for example by any actuation in a certain area.

In a further exemplary embodiment, the user first presses 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 blocking time interval triggered. In other words, in this case, the user can slide from a first to a second key without releasing the touch and press the second key when lifting his finger. Only then does the blocking time interval begin and no other key can be pressed.

In one embodiment, an acoustic feedback is generated when an input gesture or a gesture type is recognized. In particular, the acoustic feedback is generated when a control signal is generated on the basis of a recorded input. This enables the user to see whether his entry has been accepted. The acoustic feedback can alternatively or additionally also be generated when the parameter value is changed. It is generated in a manner known per se, with different feedback messages being able to be output, for example to output a recognized gesture type, a set parameter value or other influencing variables. The acoustic feedback can also be generated dynamically for this purpose, for example in that a pitch is formed as a function of the set parameter value.

With reference to the 5A to 5F an exemplary embodiment for setting an air distribution by a fan is explained. This is based on the exemplary embodiments explained above.

In the embodiment, the in 2 Surface of the registration unit shown 2 a push button element 104 with which a distribution of the air conditioning unit by a fan 4th in the interior of the vehicle 1 guided air can be adjusted. In the area of this button element 104 a display of the set distribution is also output.

In the 5A to 5F the distribution is indicated by arrows 132 , 133 , 134 output at different heights relative to a passenger representation 131 are arranged. The arrows 132 , 133 , 134 are formed by illuminated areas that can be illuminated independently of one another, while the passenger display 131 is printed on the surface and is therefore permanently visible. In the exemplary embodiment, the arrows are 132 , 133 , 134 approximately at the height of a head, torso or foot area of the passenger representation 131 arranged.

In the exemplary embodiment, the button element 104 used as a "toggie" switch. This means that there is a fixed sequence of different settings and each time the button element is pressed 104 the following setting is set in the order in which it is set. When the last setting is reached, there is a jump to the first setting in the sequence, in particular in the manner of a periodic boundary condition. In further embodiments, the Sequence on reaching the last setting are continued in reverse, in particular in the manner of a reflective boundary condition.

The in 5A In the case shown, air is introduced into the upper area of the vehicle interior. The in 5B The case shown is also initiated in the foot area of the interior. The in 5C The case shown, the air flows only into the foot area. In the case of the 5D the air flows into the head, torso and foot area of the vehicle interior, while in the case of the 5E is introduced into the trunk and foot area. In the case of the 5F Finally, the air is introduced in such a way that it hits a passenger in the vehicle, for example in the trunk area 1 meets.

In further exemplary embodiments, the air distributions can be arranged in a different order or formed in a different manner.

With reference to the 6A to 6C a further exemplary embodiment for setting a parameter value using a slider element is explained. This is based on the exemplary embodiments explained above.

The temperature slider 113 includes a horizontal straight line 113 with temperature symbols at the ends 113a , 113b are arranged. In the exemplary embodiment, these are colored blue on the left-hand side and red on the right-hand side in order to symbolize low and high temperatures, respectively. Active slider areas 150 , 150a , 150b , 150c be analogous to the 2 , 4A and 4B , indicated by dashed lines.

The in 6A The case shown extends the active slider area 150 along the entire length of the line 113 as well as a narrow area around them. The user can determine the value of the temperature parameter for the air conditioning unit 4th by swiping along the line 113 within the active slider area 150 change.

It is provided in the exemplary embodiment that the set temperature is increased when a wiping gesture directed to the right is detected. On the other hand, the set temperature is lowered if a swiping gesture directed to the left is detected.

The difference by which the temperature is changed depends in the exemplary embodiment on the actuation trajectory along which the swiping gesture is carried out. The temperature can be adjusted with maximum utilization of the slider length, i.e. with a swiping gesture over the entire width of the line 113 to be increased or decreased by a certain interval, here up to 4 ° C. With a swiping gesture over a shorter distance, there is a proportionally smaller change in the temperature parameter. This means that the slider element represents when a swiping gesture is made 113 a relative scale for the relative change in the set temperature.

In a further exemplary embodiment, a swipe gesture is also provided, in which a speed is detected for the swipe gesture that exceeds a specific threshold value. If such a swipe gesture is detected, the temperature parameter can be changed more quickly, for example by jumping to a maximum or minimum temperature or by changing by a larger interval, for example twice the interval provided for a swiping gesture, i.e. 8 ° C.

The in 6B The case shown are active slider areas 150a , 150b formed, the left or right temperature symbol 113a , 113b and a left and right part of the line 113 lock in. In this exemplary embodiment, the operation is carried out similarly to that described above with reference to 4B and the enlarged operating areas 141a , 141b Described: The active slider area 150a , 150b can be activated here by tapping, holding or holding, whereby the set temperature parameter is gradually increased.

For example, the temperature can be set each time you tap the left area 150a decreased by 0.5 ° C and each time you tap the right area 150b increased by 0.5 ° C.

In further exemplary embodiments, when holding and especially when holding permanently over a longer period of time, the increase takes place in several steps one after the other, the size of the steps being able to be determined, for example, as a function of the duration of the holding, so that, for example, after holding for a certain time, the parameter is changed in steps of 1 ° C to enable faster changes.

The in 6C The case shown are similar active slider areas 150a , 150b like the in 6B case shown. In addition, however, there is now a middle active slider area 150c provided, the one between the two active slider areas on the side 150a , 150b is arranged. In the exemplary embodiment, the middle active slider area extends 150c over about 20% of the length of the line 113 while the two active slider areas on the side 150a , 150b to the right and left of it each occupy about 40% of the length. In the case shown here, the user can set a minimum, maximum or average parameter value directly.

In the exemplary embodiment it is provided that a hold, during which a touch in one of the active slider areas 150a , 150b , 150c is held longer than a certain threshold value than an actuation is detected and evaluated as a direct selection. In the exemplary embodiment, a minimum parameter value “LO” is set directly for the temperature when the hold gesture is in the left active slider area 150a was recorded. Analogously to this, a maximum parameter value is “Hl” with a hold gesture in the right active slider area 150b set as well as a specified parameter value of 22 ° C with a hold gesture in the middle active slider area 150c .

In further exemplary embodiments, other parameter values can be selected directly. Furthermore, different areas can be used as active slider areas 150a , 150b , 150c be provided, for example with different numbers or with different dimensions.

In further exemplary embodiments, other actuations can be provided for the direct selection, for example tapping an active slider area 150 , 150a , 150b , 150c especially with multiple fingers at the same time. Further gestures can also be provided, for example simultaneous actuation of the outer active slider areas 150a , 150b or actuation of a 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, a "SYNC" mode of the air conditioning unit 4th of the vehicle 1 activated, with the same settings for different areas of the interior of the vehicle 1 can be set, for example for the driver and front passenger areas. Furthermore, different functions can be switched on or off by means of certain use cases using the same element.

The ones in the 6A to 6C configurations and arrangements of active slider areas shown 150 , 150a , 150b , 150c can be used as static configurations of the registration unit 2 be trained. However, it is provided in the exemplary embodiment that the detection unit 2 dynamically changes between the configurations, depending on how the temperature slider 113 was served, i.e. which use case was recorded. If an actuation is detected by means of a swiping or swiping gesture, this is done according to an input at the in 6A configuration shown with a narrow active slider area 150 evaluated. If, on the other hand, a tapping, holding or a permanent holding gesture is detected, then automatically for detection according to a configuration of the 6B or 6C be switched, in particular to enable direct dialing.

In further exemplary embodiments, the configurations mentioned can be combined or designed in other ways.

In further exemplary embodiments, the vehicle comprises 1 alternatively or additionally another device for which by means of the detection unit 2 a parameter value is detected. Such other devices can, for example, be media playback or a navigation system of the vehicle 1 affect. The inputs are then analogous to the exemplary embodiments of the acquisition unit explained above 2 and the method for entering a parameter value.

The options for entering parameter values explained above can in principle be combined with one another and adapted as required. Furthermore, the detection unit 2 include different controls, which can also be arranged differently. For example, slider elements 112 , 113 , 114 instead of horizontal also run vertically or in other spatial directions.

In the exemplary embodiments, the control takes place via 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 evaluates any existing inputs, preprocesses and generates a control signal, for example to set the parameter value.

List of reference symbols

1

vehicle

2

Registration unit

3

Control unit

4th

Air conditioning unit

La, Lb, Lc, Ld, Le

Luminous element

LED1, LED2, LED3, LED4, LED5, LED6, LED7

Luminous area

Sa, Sb, Sc

Sensor element

101, 102, 103, 104, 105, 106, 107

Push button element

108

"AUTO" button element

109

Button element "A / C"

110

"MENU" button element

111

"OFF" button element

112

Slider element; Blower slider; line

112a

Blower symbol (left)

112b

Fan symbol (right)

113

Slider element; Temperature slider (left); line

113a

Temperature symbol (left)

113b

Temperature symbol (right)

114

Slider element; Temperature slider (right); line

115, 116

Segment display

131

Passenger representation

132

Arrow (up)

133

Arrow (middle)

134

Arrow (down)

141a

enlarged operating range (left); Area

141b

enlarged operating area (right); Area

142a to 142i

active area of activity; Area

149

active slider area; Area

150

active slider area; Area

150a

active slider area (left); Area

150b

active slider area (right); Area

150c

active slider area (middle); Area

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102016200110 A1 [0005]

Claims (10)

Method for acquiring a parameter value in a vehicle in which an input gesture is detected in a detection area; the detected input gesture is assigned to a first or second gesture type; and, if the captured input gesture has been assigned to the first gesture type, an actuation trajectory is determined on the basis of the captured input gesture and the parameter value is changed by an amount dependent on a length of the actuation trajectory; or, if the detected input gesture has been assigned to the second gesture type, an actuation position is determined on the basis of the detected input gesture and a predetermined parameter value assigned to the actuation position is set. Procedure according to Claim 1 , characterized in that the captured input gesture can also be assigned to a third gesture type; wherein, if the detected input gesture has been assigned to the third gesture type, an actuation position is determined on the basis of the detected input gesture and the parameter value is changed by an increment determined on the basis of the actuation position. Procedure according to Claim 1 or 2 , characterized in that the first type of gesture comprises a swiping gesture. Method according to one of the preceding claims, characterized in that the second type of gesture comprises a tap gesture. Procedure according to Claim 4 , characterized in that the second gesture type is determined as a function of a duration of a time interval during which an actuation was carried out in the detection area. Method according to one of the preceding claims, characterized in that the parameter value is changed in such a way that the parameter value assumes the next value from an ordered series of setting values with each actuation. Method according to one of the preceding claims, characterized in that the detection area is a surface area of a detection unit (2). Method according to one of the preceding claims, characterized in that the detection area has a longitudinal extent and a transverse extent; wherein the transverse extension is perpendicular to the longitudinal extension; and the longitudinal extent is at least three times the transverse extent. Method according to one of the preceding claims, characterized in that an acoustic feedback is generated when the input gesture is detected and / or when a gesture type is recognized. Apparatus for detecting a parameter value in a vehicle, comprising a detection unit (2) which has a detection area and which is configured to detect an input gesture in the detection area; and a control unit (3), which is set up to assign the input gesture detected to a first or second gesture type; in which the control unit (3) is further set up to determine an actuation trajectory based on the captured input gesture and to change the parameter value by an amount dependent on a length of the actuation trajectory, if the captured input gesture has been assigned to the first gesture type; or, if the detected input gesture has been assigned to the second gesture type, to determine an actuation position based on the detected input gesture and to set a predetermined parameter value assigned to the actuation position.

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