EP3947009A1

EP3947009A1 - Method and device for detecting a parameter value in a vehicle

Info

Publication number: EP3947009A1
Application number: EP20713201.0A
Authority: EP
Inventors: Dirk PAPENDIECK; Oliver Jungeblut; Stefan Brosig
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2019-03-25
Filing date: 2020-03-11
Publication date: 2022-02-09
Also published as: WO2020193144A1; DE102019204051A1; CN113573936A

Abstract

In the method for detecting a parameter value in a vehicle, an input gesture in a detection region is detected. The detected input gesture is associated with a first or second gesture type. If the detected input gesture was associated with the first gesture type, an actuation trajectory is determined on the basis of the detected input gesture and the parameter value is changed by an amount dependent on the length of the actuation trajectory. If the detected input gesture was associated with the second gesture type, an actuation position is determined on the basis of the detected input gesture and a predetermined parameter value associated with the actuation position is set. The device for detecting a parameter value in a vehicle comprises a detection unit (2), which has a detection region and which is designed to detect an input gesture in the detection region, and a control unit (3), which is designed to associate the detected input gesture with a first or second gesture type. The device is designed to implement the method.

Description

description

Method and device for detecting a parameter value in a vehicle

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 facilities include a navigation system,

Driver assistance systems as well as communication and multimedia units, such as one

Telephone system or devices for reproducing music and speech such as a radio or 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 some of his attention to grasping a large number of operating elements and operating them so that the settings are in the desired manner

made or changed. This often requires the implementation of very precise operator actions, although the driver only gazes away for a very short time

May avert traffic. 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.

DE 10 2016 200 110 A1 discloses a device for operating a heating / air conditioning system of a means of transport, 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. Beneficial

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 was assigned to the first gesture type, a

Determination of the actuation trajectory and the parameter value is changed by an amount dependent on a length of the actuation trajectory. If the recorded input gesture has been assigned to the second gesture type, a

Operating position is determined and a predetermined parameter value assigned to the operating position is set.

This means that when the first gesture type is entered, the is recorded

Parameter value relative to the current value, while an absolute value is recorded for an input gesture of the second gesture type. 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. So there is an absolute correlation between the

Parameter value and the actuation position.

While setting a value that is far removed from the currently set parameter value by means of a relative change can require several actuations, such a change can be made faster by means of an absolute operator control.

Conversely, the parameter can be set particularly precisely by setting it using relative operation, for example by changing it in several small steps. With the method, by selecting the appropriate input gesture, the user can quickly and easily decide which type of operation appears to be 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 refers to other things

Generalize objects of operation, such as a pen.

In the context of the invention, an “input gesture” means a certain position of the

Operating object or a specific movement that is performed with the operating object understood. 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 detection of the gesture can, for example, be optical or electronic

Detection procedures take place; For example, a laser,

electromagnetic fields in the microwave range or other methods are used. 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. The

In this movement, 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, however, the currently set one becomes

Parameter value 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 based on 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 area, a specific parameter can be selected directly by selecting an actuation position, while an input gesture of the first gesture type has a specific one

Actuation trajectory in the area to a relative change in the

Parameter value leads.

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 allows more accurate and up-to-date Operation adapted to the 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 to or subtracted from the current parameter value with each actuation by an input gesture of the third gesture type. Different sub-areas of the detection area can be used for addition and subtraction or different amounts of the increment

be provided. This means that 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 specific one

Use the detection area in multiple ways.

In a further embodiment, the first type of gesture comprises a swiping gesture. Of the

The parameter value can thus advantageously be set particularly precisely and easily, 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, in which an actuation in

The detection area begins and ends, 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, another 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 the parameter value when the speed of the swiping gesture is a

Undershoots the threshold value, be made smaller in terms of amount, for example by one

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 swipe 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

be designed for example as tapping, holding, “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

A distinction between swiping and tapping gestures can be evaluated, in particular, a distance between the start and end positions of the touch or a maximum distance along an actuation trajectory. 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.

When training, the second type of gesture is depending on a duration

Determined time interval during which an actuation in the detection area

was carried out, the actuation being recorded 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, a 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, but not its position within the detection area. In the same example, two sub-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, there are also three parts of the

The detection area is designed in such a way that holding the actuation, that is to say an input gesture of the second gesture type, for directly setting a specific

Parameter value leads; In particular, a sub-area arranged on the left becomes a minimum parameter value, and a sub-area arranged on the right creates a maximum

Parameter value 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 is done in an orderly order

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 particular to the next one after a certain time interval has elapsed

Setting is switched; 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

Registration 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 extent and a

Transverse extension on. The transverse extent runs perpendicular to the longitudinal extent and the longitudinal extent is at least twice, preferably three times that

Transverse extension. The detection area is thus made elongated and therefore

advantageously particularly well suited 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, it is particularly easy to see 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, based on the recorded input gesture a

To determine the actuation trajectory and to change the parameter value by an amount that is dependent on a length of the actuation trajectory, or, if the input gesture detected was assigned to the second gesture type, based on the input gesture detected To determine actuation position and to set a predetermined parameter value assigned to 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.

The invention will now be explained on the basis of exemplary embodiments with reference to the drawings. Figure 1 shows a vehicle with an embodiment of the device according to the invention,

Figure 2 shows further details of the embodiment of the invention

Contraption,

Figures 3A to 3C show an embodiment of an output of a parameter value by means of a segment display,

FIGS. 4A and 4B show an exemplary embodiment for setting parameter values by means of a slider element,

FIGS. 5A to 5F show an exemplary embodiment for setting an air distribution by a fan and

Figures 6A to 6C show a further embodiment for the setting of a

Parameter value using a slider element.

With reference to FIG. 1, a vehicle with an exemplary embodiment of the device is explained.

A 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.

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

The surface of the detection unit 2 can be flat. You can also

Have depressions and / or elevations that can be grasped by a user with a finger and 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 detection unit 2 also comprises a film produced using the IML process (in-mold labeling) and back-injected with plastic. In the exemplary embodiment, it also includes

Sensor elements Sa, Sb, Sc, which are designed here as capacitive sensor elements. The sensor elements Sa to Sc are arranged behind the surface of the detection unit 2 in such a way that they are not visible to the user. The sensor elements Sa to Sc are designed in a manner known per se such that they can detect an actuation by an actuating element. For this purpose, they each have a detection area which, for example, comprises an area of the surface of the detection unit 2 and / or a spatial area arranged above the surface. In particular, a finger of the user can be used as an actuating element. In the embodiment, the detect

Sensor elements Sa 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 to a sensor element Sa 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 evaluated by the detection unit 2 and / or the control unit 3.

In the exemplary embodiment, the sensor elements Sa to Sc are 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 has touch-sensitive surface areas embodied in a different manner known per se. Through this, an actuation by an actuating element can be detected in a manner analogous to the mode of operation of the sensor elements Sa to Sc explained above.

In particular, when an actuation is detected, the detection unit 2 generates a control signal and transmits this to the control unit 3. A parameter value can be set, whereby either the detection unit 2 itself already processes the input to such an extent that it assigns a specific parameter value to it, or the control unit 3 these

Processing of the input or control signal generated by the detection unit 2 takes over.

Furthermore, the detection unit 2 comprises luminous elements La, Lb, Lc, Ld, Le, which adjoin one another in the form of a segment display along a linear direction of extent are arranged. The lighting elements La to Le can be controlled by the control unit 3 independently of one another.

The air conditioning unit 4 is formed in a manner known per se and, in the exemplary embodiment, includes, inter alia, 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, where the direction, distribution, intensity and temperature of the incoming air can be adjusted.

With reference to FIG. 2, the exemplary embodiment of the device explained above with reference to FIG. 1 is explained in more detail.

FIG. 2 shows a view of the surface of the detection unit 2 facing the user in the interior of the vehicle 1. This surface is designed essentially as a horizontally stretched rectangle. Button elements 101, 102, 103, 104, 105, 106, 107 are arranged next to one another in the upper area. 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 FIG. 2, the individual pushbutton elements 101 to 107 are assigned

touch-sensitive areas indicated by dashed lines. Within these areas, luminous areas are also formed, which can be activated by activating a

arranged LED can be illuminated with light of a certain intensity and / or color, for example in order to output the status, the activity or a setting of a function assigned to the respective button element 101 to 107. The control of the

Acquisition unit 2 and, if necessary, the evaluation of signals acquired by acquisition unit 2 is carried out by control unit 3.

In a middle and lower area of the surface of the detection unit 2, further button elements 108, 109, 110, 111 are also formed. These are also with him

Embodiment formed by means of touch-sensitive surface areas, which are indicated by dashed lines. By pressing the other button elements 108 to 111, additional functions can be called up, activated or set. For example, a menu display on a display in the vehicle 1 can be called up by pressing the button element 110 “MENU”. The air conditioning unit 4 can be switched off by pressing the button element 111 “OFF”. The air conditioning system of the air conditioning unit 4 of the vehicle 1 can be activated by means of the button element 109 “A / C” An automatic mode of the air-conditioning unit 4 can be activated using the button element 108 “AUTO”.

In other exemplary embodiments, the pushbutton elements 101 to 111 can be designed as mechanical switches, in particular pushbutton switches. In addition, further

Embodiments other functions can be provided alternatively or additionally.

In the middle and lower area of the surface of the detection unit 2 are also

Segment displays 115, 116 are arranged, which in the exemplary embodiment are suitable for outputting a two-digit temperature value with one decimal place. Furthermore, slider elements 112, 113, 114 for setting a temperature and a fan level are arranged here. The respective adjustable functions of the air conditioning unit 4 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 is formed on the surface of the detection unit 2. Behind it, covered by the surface, sensor elements Sa to Sc are indicated, through which a touch in the area of a slider element 112 to 114 can be detected, in particular a position of the touch and possibly a movement along the slider element 112 to 114 being detected.

In the exemplary embodiment, the line of the slider element 112 for setting the

The fan, that is to say the fan slider 112, can be illuminated segment by segment by lighting elements La to Le arranged behind it.

With reference to FIGS. 3A to 3C, an exemplary embodiment of an output of a set level of a fan of the air-conditioning unit 4 is explained by means of a segment display. In particular, the embodiment of the device explained above with reference to FIGS. 1 and 2 is assumed. The segment display of the

Embodiment is arranged in particular in the area of the fan slider 112 and the control is carried out by the control unit 3.

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

In the case shown in FIG. 3A, the fan of the air conditioning unit 4 is deactivated. The graph shows the intensity of light emission on the Y-axis while the individual

Luminous areas LED1 to LED7 are assigned positions along the X-axis. None of the luminous areas shines, which is shown in the diagram in FIG. 3A by columns that are practically invisible.

In the cases of Figures 3B and 3C, the third stage of the fan is the

Air conditioning unit 4 activated. The graphs show the intensity of the light emitted by the illuminated areas LED1 to LED7 as a function of the position or of the respective illuminated area LED1 to LED7. In the case of FIG. 3B, a night mode is activated, in the case of FIG. 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. That is, im

Day mode, the display takes place by means of a higher than night mode

Light intensity in order to make the display easy to read even in strong ambient light during the day, but without disturbing or dazzling the user in low ambient light at night.

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 light surfaces that are not used to indicate the blower level are evenly illuminated, instead of being illuminated at different intensities

to have, depending on the distance from a illuminated surface illuminated with higher intensity.

In order to achieve this uniform lighting with the basic intensity, it may be necessary to apply different currents to the LEDs; particular will be such a

Overlighting compensated. For example, in the case shown in FIG. 3B, it can be provided that the first three LEDs LED1, LED2, LED3 are operated with a first current for 60% of the maximum intensity, with overlighting leading to the fact that in the area of the two adjacent illuminated areas LED4 and LED5 already emitted a certain intensity becomes. The LEDs of these luminous areas LED4 and LED5 are therefore only operated with a lower current than the LEDs of luminous areas LED6 and LED7 positioned further away, in order to achieve a uniform basic intensity of the LEDs LED4 to LED7. For example, the directly adjacent luminous area LED4 is operated with 5% and the further adjacent luminous area LED5 with 7%, while the more distant luminous areas LED6 and LED7 are operated with 10%. In further exemplary embodiments, other light sources, in particular light into the light-emitting areas LED1 to LED7, can be taken into account and compensated for by suitable control of the LEDs.

In further exemplary embodiments, other ratios between the intensities and different modes can be provided. For example, ambient brightness can be recorded and the light intensity of the activated luminous surfaces dynamically adapted to that recorded

Ambient brightness can be adjusted. Furthermore, values of basic intensity and display intensity assigned to one another can be firmly predetermined, as is the case with the

Embodiment is the case. Furthermore, the basic intensity can, for example, be 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 then a

Basic intensity is formed in such a way that the overlighting is concealed.

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 used in connection with 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, you can do this in this way

Intermediate stages are displayed or during an operation, for example by means of the Blower sliders 112, the illuminated areas of the position of the

Follow the actuation object on the slider 112. They can also be arranged next to one another instead of a linear arrangement, for example in a two-dimensional matrix.

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

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

On the surface of the detection unit 2 facing the user, as shown for example in FIG 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, by means of which both the line 112 and the symbols 112a, 112b can be illuminated. In which

In the exemplary embodiment, the line 112 can also be illuminated as a segment display, that is to say behind here light sources are arranged in a row next to one another in such a way that individual areas of the line 112 can be illuminated independently of one another with different intensities. In this way, for example, the set level of the fan is output according to the method explained above with reference to FIGS. 3A to 3C. The symbols 112a, 112b and the line 112 can be permanently visibly printed on or can only be made visible by means of a β / ac / c pane / technique when they are illuminated from behind.

In FIGS. 4A and 4B, touch-sensitive areas 149, 141a, 141b, 142a to 142i are indicated by dashed lines. In these areas the

Sensor elements Sa 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 is in one touch-sensitive area touched by the actuating object. With more

Embodiments can also be detected instead of a touch if the

The actuation 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 embodiment, an actuation at a specific position is detected in that the sensor elements Sa to Sc depending on the position of the

Detect the actuating object of different strengths of signals. 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 shifts the position of his movement along the slider element 112. Depending on the current position, different signal strengths are thus detected by the sensor elements Sa to Sc. 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 area areas on the surface of the detection unit 2, can be used as areas that are separate from one another in order to detect actuations 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 specific

Response behavior, that is to say, for example, be configured with certain threshold values for time intervals for actuation, or as a slider element 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 displayed by a segment display in the area of the slider element 112. This takes place in the manner explained above with reference to FIGS. 3A to 3C. When the slider element 112 is actuated at a position, this is illuminated at the corresponding position and the corresponding level of the fan is set. However, the The exemplary embodiment not only detects the area in which 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 move his finger along the slider element 112 and thereby 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 one

Start position at which the contact begins, an end position at which the contact ends, and a trajectory along which the actuating 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 buttons or slider elements both in touch-sensitive surface areas and for mechanical switches.

The user can actuate the touch-sensitive area by “tapping”, with a time interval V being recorded between the beginning and the end of the touch that is shorter than a certain threshold value to: At <to. The threshold value to 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, changing parameter values incrementally 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 At than a threshold value ti: At>. The threshold value ti 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 At exceeds the threshold value ti 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 ti and then changes over to a second surface area, which is then also touched for longer than the threshold value ti. 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 recorded for a time interval At longer than a threshold value to and a renewed actuation is recorded for each multiple of the threshold value to. 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 At 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, with particular consideration being given to whether the user is the adjacent Surface area for a time interval At shorter than the threshold value to touched or whether a hold is carried out here, for example.

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.

In the case shown in FIG. 4A, the fan slider is defined as a contiguous, active slider area 149 which extends over the entire length of the line 112 and the adjacent symbols 112a, 112b. The positions of touches and actuations can be detected within the area 149 of this active slider area 149. If the actuation object moves along the longitudinal extent of the fan slider 112, the position of the contact, in particular during a swiping gesture, is continuously detected and the set level of the fan follows this position. For example, a lowest level is assigned to the left area of the fan slider 112 or the left fan symbol 112a, while a highest level is assigned to the right area of the fan slider 112 or the right fan symbol 112b. In between spread over the

Longitudinal extension of the fan slider 112 areas of the same size, each of which is assigned a step in between.

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.

In the case shown in FIG. 4B, however, individual ones are touch-sensitive

Surface areas 142a to 142i are formed. These are operated by tapping, so that the user can adjust the fan speed directly by selecting a touch-sensitive one

Can select area range 142a to 142i.

The two outermost left 142a, 142b and right 142h, 142i touch-sensitive surface areas are also combined to form enlarged actuation areas 141a, 141b. By touching one of these enlarged actuation areas 141a, 141 b the user can increase or decrease the level of the fan incrementally. By continuously holding in one of the enlarged actuation areas 141a, 141b, the level is gradually increased or decreased, depending on the time interval during which the contact is kept.

In the exemplary embodiment, the enlargement of the actuation areas 141a, 141b restricts the possibilities for the direct selection of a level of the fan insofar as the lowest and highest levels cannot be selected directly. Instead, these steps are only achieved in that, starting from the next adjacent step, the corresponding enlarged actuation area 141a, 141b is tapped again or maintained permanently.

The cases shown in FIGS. 4A and 4B are not to be understood as static configurations of the detection unit 2 in the exemplary embodiment. Rather, it switches

Acquisition unit 2 dynamically between the two configurations, namely in

Dependency on the type of the recorded actuation, i.e. the recorded use case. That is, when the user performs a swiping gesture, the actuation is interpreted as explained above with reference to FIG. 4A. If, on the other hand, the user performs a tapping gesture or a permanent holding gesture, this gesture is evaluated as in the configuration explained with reference to FIG. 4B.

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

In the embodiment, it is also provided that the button elements 108 to 111, which are arranged adjacent to the slider elements 112, 113, 140, for the detection of a

Actuation are blocked after a swiping gesture in the area of one of the slider elements 112, 113, 114 has been detected. This prevents the user from accidentally actuating one of the pushbutton elements 108 to 111 if he continues a movement of the actuating object beyond the area of a slider element 112, 113, 114 with a swiping gesture.

The blocking of the adjacent button elements 108 to 111 or more

Touch-sensitive surfaces or switching elements are carried out for a specific blocking time interval. This blocking time interval begins in particular at the point in time at which the contact with the slider element 112, 113, 114 is ended, and it can in particular can be determined dynamically, for example based on the speed of the swiping gesture and / or a driving speed of vehicle 1.

In further exemplary embodiments, a distance from a slider element 112, 113, 114 is defined, within which no actuation is detected in the blocking time interval. This distance can also be determined dynamically, for example on the basis of the speed of the swiping gesture, a longitudinal extent of the slider element 112, 113, 114 and / or on the basis of the driving speed of the vehicle 1. In particular, a

Surface area are defined which continues a longitudinal extension of the slider element 112, 113, 114; for example, an area above or below a horizontally running slider element 112, 113, 114 is not blocked, while laterally adjoining surface areas are blocked during the blocking time interval.

In a further exemplary embodiment, the adjacent pushbutton elements 108 to 111 are only blocked when it has been detected that a swipe gesture has been carried out at least as far as a lateral end of the slider element 112, 113, 114 or beyond. In further exemplary embodiments, the blocking of certain surface areas of the detection unit 2 can be triggered by events other than a wiping gesture, for example by any actuation in a certain surface 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, audible feedback is generated when a

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 responses being able to be output, for example about a recognized gesture type, a set one

Output parameter value or other influencing variables. The acoustic feedback can can also be formed dynamically for this purpose, for example by forming a pitch depending on the set parameter value.

With reference to FIGS. 5A to 5F, an exemplary embodiment for setting an air distribution by means of a fan is explained. In doing so, the above-mentioned

Embodiments assumed.

In the exemplary embodiment, the surface of the detection unit 2 shown in FIG. 2 comprises a button element 104, with which a distribution of the by a fan of the

Air conditioning unit 4 can be adjusted into the interior of the vehicle 1 air. A display of the set distribution is also output in the area of this button element 104.

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

In the exemplary embodiment, the button element 104 is used as a “Togg / e” switch. That is, there is a fixed sequence of different settings and each time the button element 104 is actuated, the following setting is set in the sequence. 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. For more

In embodiments, the sequence can be reversed when the last setting is reached, in particular in the manner of a reflective boundary condition.

In the case shown in FIG. 5A, air is introduced in the upper region of the vehicle interior. In the case shown in FIG. 5B, an introduction also takes place in the foot area of the interior. In the case shown in FIG. 5C, the air flows only into the foot area. In the case of FIG. 5D, the air flows into the head, torso and foot area of the

Vehicle interior, while in the case of Figure 5E it is introduced into the trunk and foot area. Finally, in the case of FIG. 5F, the air is introduced in such a way that it encounters a passenger in vehicle 1, for example in the torso area. In further exemplary embodiments, the air distributions can be arranged in a different order or formed in a different manner.

A further exemplary embodiment for setting a parameter value by means of a slider element is explained with reference to FIGS. 6A to 6C. This is based on the exemplary embodiments explained above.

The temperature slider 113 includes a horizontal straight line 113 at the ends of it

Temperature symbols 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 are indicated by dashed lines, analogously to FIGS. 2, 4A and 4B.

In the case shown in FIG. 6A, the active slider area 150 extends over the entire length of the line 113 and a narrow area in its vicinity. The user can the value of the temperature parameter for the air conditioning unit 4 by a

Change the swiping gesture along the line 113 within the active slider area 150.

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

With maximum utilization of the slider length, that is to say with a swiping gesture over the entire width of the line 113, the temperature can 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. That is, with a swiping gesture, the slider element 113 represents 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, approximately twice the interval as provided for a swiping gesture, that is to say 8 ° C.

In the case shown in FIG. 6B, active slider areas 150a, 150b are formed which contain the left and right temperature symbols 113a, 113b and a left one

and right part of the line 113 include. In this exemplary embodiment, the operation is similar to that already described above with reference to FIG. 4B and the enlarged actuation areas 141a, 141b: The active slider areas 150a, 150b can be actuated here by tapping, holding or holding them permanently, with the set temperature parameter is gradually increased.

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

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.

In the case shown in FIG. 6C, active slider regions 150a, 150b similar to those in the case shown in FIG. 6B are formed. In addition, however, a central active slider area 150c is now provided, which is arranged between the two lateral active slider areas 150a, 150b. In the exemplary embodiment, the middle active slider region 150c extends over approximately 20% of the length of the line 113, while the two lateral active slider regions 150a, 150b to the right and left thereof each take up approximately 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, in which a touch in one of the active slider areas 150a, 150b, 150c is held longer than a certain threshold value, is detected as an actuation and evaluated as a direct selection. In which

In the exemplary embodiment, a minimum parameter value “LO” is set directly for the temperature if the hold gesture was detected in the left active slider area 150a. Analogously to this, a maximum parameter value “Hl” becomes in the case of a hold gesture in the right active slider area 150b is set and a predetermined parameter value of 22 ° C. for a holding gesture in the middle active slider area 150c.

In further exemplary embodiments, other parameter values can be selected directly. Furthermore, different areas can be provided as active slider areas 150a, 150b, 150c, 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, in particular with several fingers at the same time. Furthermore, further gestures can be provided, for example a simultaneous actuation of the outer active slider areas 150a, 150b or an actuation of a slider area 150, 150a, 150b, 150c with several 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 4 of the vehicle 1 can be 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 by the same element.

The configurations and arrangements of active slider areas 150, 150a, 150b, 150c shown in FIGS. 6A to 6C can be designed as static configurations of the detection unit 2. However, it is provided in the embodiment that the

Detection unit 2 changes dynamically between the configurations, depending on how the temperature slider 113 was operated, that is to say which use case was detected. If an actuation is detected by means of a wipe or swipe gesture, this is evaluated in accordance with an input in the configuration shown in FIG. 6A with a narrow active slider area 150. If, on the other hand, a tapping, holding or a permanent holding gesture is detected, it is possible to automatically switch to detection in accordance with a configuration of FIG. 6B or 6C, in particular to enable direct selection.

In further exemplary embodiments, the configurations mentioned can be combined or designed in other ways. In further exemplary embodiments, the vehicle 1 alternatively or additionally comprises another device for which a parameter value is acquired by means of the acquisition unit 2. Such other devices can relate to media playback or a navigation system of vehicle 1, for example. The inputs are then recorded analogously to the exemplary embodiments of the recording unit 2 explained above and the method for inputting 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 can comprise different operating elements, which can also be arranged differently. For example, slider elements 112, 113, 114 can also run vertically or in other spatial directions instead of horizontally.

The control takes place in the exemplary embodiments by the control unit 3. However, different system configurations can be provided, for example with a control unit of the detection unit 2, which takes over the control and / or evaluates existing inputs, preprocessed and generates a control signal, for example to set the parameter value .

List of reference symbols

1 vehicle

2 registration unit

3 control unit

4 air conditioning unit

La, Lb, Lc, Ld, Le luminous element

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

Sa, Sb, Sc sensor element

101, 102, 103, 104, 105, 106, 107 push button element

108 "AUTO" button element

109 "A / C" button element

110 "MENU" button element

111 "OFF" button element

112 slider element; Blower slider; line

112a fan 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 (center)

134 arrow (down)

141a enlarged operating area (left); Surface area 141 b enlarged operating area (right); Area 142a to 142i active actuation area; 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 (center); Area

Claims

1. A method for detecting 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 recorded input gesture has been assigned to the first gesture type, an actuation trajectory is determined on the basis of the recorded input gesture and the

The parameter value is changed by an amount dependent on a length of the actuation trajectory; or,

if the recorded input gesture has been assigned to the second gesture type, an actuation position is determined based on the recorded input gesture and one of the

Operating position assigned predetermined parameter value is set.

2. The method according to claim 1,

characterized in that

the captured input gesture can also be assigned to a third gesture type; wherein, if the recorded input gesture has been assigned to the third gesture type, an actuation position is determined on the basis of the recorded input gesture, and the

Parameter value is changed by an increment determined on the basis of the actuation position.

3. The method according to claim 1 or 2,

characterized in that

the first type of gesture comprises a swipe gesture.

4. The method according to any one of the preceding claims,

characterized in that

the second type of gesture comprises a tap gesture.

5. The method 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.

6. The method according to any 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.

7. The method according to any one of the preceding claims,

characterized in that

the detection area is a surface area of a detection unit (2).

8. The method according to any one of the preceding claims,

characterized in that

the detection area has a longitudinal extent and a transverse extent; in which

the transverse extension is perpendicular to the longitudinal extension; and

the longitudinal extent is at least three times the transverse extent.

9. The method according to any 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.

10. 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.