阅读说明：本技术 用于机动车的倾斜在机动车中的可视化的方法 (Method for visualizing the inclination of a motor vehicle in a motor vehicle ) 是由 S·齐巴尔特 A·海因利希斯 于 2021-04-15 设计创作，主要内容包括：本发明涉及一种用于机动车(K)的倾斜在机动车(K)中的可视化的方法,在其中机动车(K)的倾斜被测量且在机动车(K)的内部空间中被可视化。本发明的特征在于,倾斜的可视化通过机动车(K)的内部空间照明装置(1)实现。在此,形成至少一个虚拟平面(VE),其水平地横断在水平的位置中的机动车(K)且用作用于倾斜的呈现的参考平面。机动车(K)的倾斜改变通过内部空间照明装置(1)动态地通过有顺序地和/或并行地操控内部空间照明装置(1)的照明器件(100)被仿做。(The invention relates to a method for visualizing the inclination of a motor vehicle (K) in a motor vehicle (K), wherein the inclination of the motor vehicle (K) is measured and visualized in the interior of the motor vehicle (K). The invention is characterized in that the oblique visualization is carried out by means of an interior lighting device (1) of the motor vehicle (K). At least one virtual plane (VE) is formed, which horizontally intersects the motor vehicle (K) in a horizontal position and serves as a reference plane for the representation of the inclination. The inclination change of the motor vehicle (K) is simulated by the interior lighting device (1) dynamically by means of a lighting means (100) which actuates the interior lighting device (1) sequentially and/or in parallel.)

1. Method for visualizing the inclination of a motor vehicle (K, K ') in a motor vehicle (K, K '), in which the inclination of the motor vehicle (K, K ') is measured and visualized in the interior of the motor vehicle (K, K '), characterized in that the visualization of the inclination is effected by interior lighting (1,1') of the motor vehicle (K, K '), wherein at least one virtual plane (VE, VE1-VE3) is formed, which horizontally intersects the motor vehicle (K, K ') in a horizontal position and serves as a reference plane for the presentation of the inclination, wherein, by the interior lighting (1,1') the inclination change of the motor vehicle (K, K ') is dynamically controlled by sequentially and/or in parallel operating the interior lighting (1,1') is imitated.

2. Method according to claim 1, characterized in that the visualization of the inclination of the motor vehicle (K) is realized in the form of an inclination display of a spirit level, wherein the movement of air bubbles in the fluid of the spirit level is imitated by at least one visualization region (SB1) produced by the actuation of the lighting means (100), which in the case of an inclination of a virtual plane (VE) kinematically coupled to the motor vehicle (K) resembles the movement of air bubbles against the inclination direction of the virtual plane (VE).

3. Method according to claim 1, characterized in that the visualization of the inclination of the motor vehicle (K ') is imitated by the movement of a virtual fluid which is stationary on the virtual plane (VE) and which is surrounded by additional virtual wall portions (VW1-VW3), wherein a fluid which changes in position as a function of the changing inclination of the kinematically coupled virtual plane (VE) with the motor vehicle (K') is imitated by at least one visualization region (SB2, SB2') which is generated by sequentially and/or simultaneously operating lighting means (100) of the interior space lighting device (1') and which moves in the direction of the inclination of the virtual plane (VE) towards the virtual wall portions (VW1-VW3) and/or collects in the region of the virtual wall portions (VW1-VW 3).

4. A method according to any one of claims 2 to 3, characterized in that the visualization region (SB1, SB2, SB2') is constructed by illuminated and/or color-emphasized regions.

5. The method according to any one of claims 2 to 3, characterized in that the visualization region (SB1, SB2, SB2') is constructed by a region which does not act as illumination.

6. Method according to any of the preceding claims, characterized in that the manipulation of the lighting device (100) is only then effected when a certain first tilt threshold is exceeded.

7. Method according to any one of claims 3 to 6, characterized in that in the case of a change in the inclination of the virtual plane (VE) over a certain gradient, by manipulating the lighting means (100) of the interior space lighting device (1'), the sloshing effect of the virtual fluid impinging against the virtual wall portion (VW1-VW3) is imitated.

8. The method according to any of the preceding claims, wherein the dummy fluid is imitated as a viscous fluid.

9. The method according to any of the preceding claims, characterized in that, by means of the interior space lighting device (1'), the at least one virtual horizontal plane (VE) is represented as a plane that is kinematically decoupled from the tilting movement of the motor vehicle (K'), in such a way that, in the absence of tilting of the motor vehicle (K '), the interior lighting device (1') is horizontally divided by a virtual plane (VE) into partial regions (To, Tu) above and below the plane (VE), wherein the partial regions (To, Tu) are represented differently and wherein a separating line (T) formed between the partial regions (To, Tu) by the virtual plane (VE) is changed in its position relative To the interior space lighting (1') in the event of a tilting of the motor vehicle (K').

10. Method according to claim 9, characterized in that with the interior space lighting (1'), a plurality of virtual horizontal planes (VE1-VE3) appear as planes which are kinematically decoupled by the tilting movement of the motor vehicle (K').

11. Method according to any of the preceding claims, characterized in that the visual perception of the inclination of the motor vehicle (K, K') is dubbed acoustically.

12. Method according to any of the preceding claims, characterized in that the relation between the inclination of the motor vehicle (K) and the visualization of the inclination by means of the interior space lighting (1,1a,1b) is non-linear.

13. Method according to claim 12, characterized in that the intensity (I) in the visualization of the inclination of the motor vehicle (K) by means of the interior lighting (1,1a,1b) decreases in the direction of the increasing inclination of the motor vehicle (K) starting from a maximum value (Imax) of the intensity (I) in the case of a horizontal position (H) of the motor vehicle (K).

14. Method according to claim 13, characterized in that the reduction of the intensity (I) is effected continuously at least locally.

15. Method according to any one of claims 13 to 14, characterized in that the reduction of the intensity (I) is effected at least locally in stages (S, S1, S2).

16. A motor vehicle (K, K ') for carrying out the method according to any one of the preceding claims, with an interior space illumination device (1,1') in the interior space, comprising at least one row of a number of horizontally oriented lighting devices (100) arranged side by side, wherein at least one control device (7) is present for operating the lighting device (100) depending on the measurement values of at least one sensor (8), characterized in that a tilt value of the motor vehicle (K, K ') can be detected by means of the at least one sensor (8) and the lighting means (100) of the interior lighting device (1,1') can be actuated in such a way that they are sequential and/or parallel depending on the detected tilt, so that at least one visualization area (SB1-SB4) is generated that changes with changing tilt.

17. Motor vehicle (K ') according to claim 16, characterized in that the interior lighting device (1') comprises a plurality of rows of a large number of horizontally oriented lighting means (100) arranged side by side, such that a matrix-like arrangement of the lighting means (100) results.

18. Motor vehicle (K) according to any one of claims 16 to 17, characterized in that the interior space lighting (1,1') is arranged at least along the interior trim of the front door and along the dashboard (3).

19. Motor vehicle (K, K ') according to one of claims 16 to 18, characterized by at least one audible output device (10) in the interior space of the motor vehicle (K, K') and at least one control device (7) for actuating the audible output device (10) depending on the measured values of the at least one sensor (8).

Technical Field

The invention relates to a method for visualizing the inclination of a motor vehicle in a motor vehicle. The invention also relates to a motor vehicle for carrying out the method.

Background

A method is known from DE 102015210887 a 1. Furthermore, a motor vehicle is also disclosed. In particular, a method for displaying an acceleration in a vehicle is proposed in this document, in which an acceleration of the motor vehicle is detected and then an interior lighting is generated in the interior of the vehicle. In particular, the lighting parameters of the interior lighting of the vehicle change as a function of the detected acceleration. In this case, the illumination parameters, which may include the illumination intensity or color of the interior space illumination device, are changed in a direction which is oriented oppositely to the direction of the acceleration. The interior lighting device comprises lighting diodes arranged adjacent to one another, which are designed as so-called LED lighting strips and extend horizontally in the vehicle, for example along the dashboard.

A method for determining the inclination angle of a vehicle is already known from DE 102008027087 a1, in which the current inclination angle of the vehicle is calculated as a function of a measured acceleration measurement. Further, the magnitude of the vector sum of the acceleration of the vehicle is calculated in the directions of X, Y and the Z-axis. Furthermore, the compensated tilt angle is calculated as a function of the magnitude of the current tilt angle calculated from the acceleration measurements, at least one previous tilt angle and the vector sum of the accelerations in the direction of the axis. When the magnitude of the vector sum of the accelerations differs significantly from the magnitude of the gravitational acceleration in the direction of the axis, then the at least one previous tilt angle is used to calculate a compensated tilt angle. The inclination angle information is displayed in such a manner that the roll angle information (wankwinbikelinformation) and the pitch angle information (nickwinkelformation) are displayed on a display in the interior space of the vehicle.

In modern motor vehicles, ambient lighting devices are also increasingly being used as a component of interior lighting devices. The ambient lighting device or the lighting means thereof are primarily intended to produce a high-quality and comfortable interior space sensation. The function of the reading or search lighting device is usually assumed here by further lighting means.

Disclosure of Invention

Against this background, the invention is based on the object of conveying special impressions to passengers by means of interior lighting.

The invention is based on the object of providing a suitable motor vehicle for carrying out the method.

The object is achieved by a method for visualizing the inclination of a motor vehicle in a motor vehicle and a motor vehicle for carrying out the method.

The invention is based on a method for visualizing the inclination of a motor vehicle in a motor vehicle. In the method, the inclination of the motor vehicle is measured and visualized in the interior of the motor vehicle. The inclination of the motor vehicle in space is preferably measured in relation to the vertical direction. In particular, it is derived from the direction of the geocentric gravitational acceleration.

According to the invention, it is proposed that the oblique visualization is carried out by means of an interior lighting of the motor vehicle. At least one virtual plane is formed, which horizontally intersects the motor vehicle in a horizontal position. The plane is thus oriented perpendicular to the vertical direction of the geocentric. It can "cross" the vehicle at a certain height (e.g., window lower edge, arm brace, etc.).

This plane is used in the method as a reference plane for representing the inclination, wherein the inclination change of the motor vehicle by the interior lighting device is simulated dynamically by sequentially (sequenziell) and/or concurrently (i.e. simultaneously) operating the lighting devices of the interior lighting device (nachmpfinden).

By means of the method with the above-described features, the precondition for this is created that the inclination change of the motor vehicle can be visualized very impressively for the vehicle occupants in the interior space. Very suitably, the method may be performed by an ambient lighting device.

According to a first refinement of the method, the inclination of the motor vehicle is visualized in the form of an inclination display of a level (wasserwaage). The movement of air bubbles in the fluid of the level is thereby simulated by at least one visualization area generated by the actuation of the illumination means. In this case, in the case of tilting of the above-mentioned virtual plane, to which the motor vehicle is coupled (sometimes referred to as "coupled") in terms of movement, the visualization region is moved counter to the tilting direction of the virtual plane, analogously to the movement of an air bubble.

By such a development of the method, the inclination change can be presented very intuitively and clearly to the vehicle occupant.

As an alternative development of the method, it can also be provided that the oblique visualization of the motor vehicle is simulated by the movement of a virtual fluid which is stationary on a virtual plane and is enclosed by additional virtual walls.

In this case, the fluid, the position of which changes as a function of the changing inclination of the kinematically coupled virtual plane with the motor vehicle, is simulated by at least one visualization region generated by the illumination means which operate the interior lighting device sequentially and/or simultaneously. The visualization region is moved in the direction of the inclination of the virtual plane towards the virtual wall and/or collected in the region of the virtual wall.

Preferably, the velocity of the above-mentioned movement of the visualization region is proportional to the inclination and/or gradient of the inclination change.

In view of the visualization area, it is conceivable that the visualization area is formed by illuminated and/or color-emphasized areas. In this way, the visualization area is well visible. Furthermore, energy can be saved in this way, since the illumination means of the interior illumination device outside the visualization region are either not operated or are operated only with a low intensity.

Alternatively, however, it is also conceivable for the visualization region to be formed by regions which do not contribute to the illumination. This can help the vehicle occupant to continuously observe that a large portion of the interior space lighting is illuminated.

In order to be able to uncorrect the interior lighting despite the continuous minimal change in inclination of the motor vehicle to the vehicle occupant, it is proposed that the actuation of the lighting means is only then effected when a certain first inclination threshold value is exceeded.

According to a particularly advantageous development of the method, it is proposed that a sloshing effect (sometimes referred to as a tilting effect) of the virtual fluid impinging against the virtual wall is simulated by actuating the lighting means of the interior lighting device in the event of a change in inclination of the virtual plane kinematically coupled to the motor vehicle, said change exceeding a certain gradient.

In this way, particularly impressive effects can be presented for the vehicle occupants in the case of a display of the inclination of the motor vehicle.

It is conceivable here, for example, for the lighting means of the interior lighting device to be actuated in such a way that first of all at least one visualization region is moved in the direction of the inclination, expands at the inclined end of the interior lighting device (almost against the virtual wall) and that the at least one visualization region is moved back against the direction of the inclination over a shorter partial length of the interior lighting device (i.e. is almost bounced back by the virtual wall).

An impressive illustration of the inclination change in the motor vehicle can also be facilitated when the virtual fluid is imitated as a viscous (i.e. as a viscous) fluid.

The corresponding physical model, for example in the form of a stored synthetic characteristic curve, can be used for the purpose of the tilted visualization region described above, which depicts the behavior of an air bubble in a fluid-filled pipe or a viscous fluid at rest in a basin in the case of a tilt or a change in tilt. Such a physical model can preferably be stored in an evaluation and control device which controls the lighting means of the interior lighting device.

Another possibility for a very intuitive and easily understandable visualization of the inclination or inclination change in the interior of the motor vehicle is obtained by the fact that at least one virtual horizontal plane is represented by the interior lighting device as a plane which is kinematically decoupled (sometimes referred to as decoupled) from the tilting movements (i.e. the rolling and pitching movements) of the motor vehicle. This can be achieved in that the interior lighting device is divided horizontally by the virtual plane into partial regions above and below the plane in the absence of tilting of the motor vehicle. The partial regions are represented differently here. This can be achieved, for example, by different colors or brightnesses of the partial regions. For example, it is conceivable that a partial region above the defined virtual plane is illuminated blue, while all the lighting means of the interior space lighting device below the virtual plane are illuminated red.

The dividing line between the partial regions, which is formed by the virtual plane, is then changed in its position relative to the interior lighting device in the event of a tilting of the motor vehicle.

In an advantageous development of this concept, it can be provided that, by means of the interior lighting device, a plurality of virtual horizontal planes are present as planes which are kinematically decoupled from the tilting movement of the motor vehicle. This can then be "stacked" on top of each other, for example at a defined distance (for example about ten cm).

According to a further development of the method, it is also proposed that the inclination of the motor vehicle be visually and aurally dubbed (sometimes called accentuation). It is thus conceivable, for example, to generate sound tones with a certain audible sound intensity and frequency in a horizontal orientation of the motor vehicle. In the case of a tilting of the motor vehicle, the tone can change in its sound intensity and/or in its frequency in accordance with the tilting. For example, it is possible to raise the tone at least at its frequency in the case of an uphill slope (Steigung) of the motor vehicle and to lower the tone at its frequency in the case of a downhill slope.

A particularly suitable embodiment of the method provides that the relationship between the inclination of the motor vehicle and the visualization of the inclination by the interior lighting device is non-linear. In other words, the sensitivity of the inclination display to changes in the inclination of the vehicle describes a non-linear course.

That is, as a technical challenge, it has proven that, on the one hand, a large bandwidth of the angle of inclination is virtualized, and, on the other hand, as impressive a customer experience as possible is nevertheless produced.

That is, if a smaller inclination angle visualization is already clearly visible to the customer, the inclination or the visualization displayed by it already reaches its end stop in the case of an intermediate inclination angle, so that further inclinations can no longer be made visible. If, however, a display of a wider spectrum of the vehicle inclination is possible, the inclination or the visualization of its display is not or hardly perceptible to the customer in the case of small and moderate inclinations.

By the above-mentioned construction of the method, preconditions are created for this, both goals may become suitable.

In this connection, it is very advantageous if the intensity in the visualization of the inclination of the motor vehicle by means of the interior lighting device decreases in the direction of the stronger inclination of the motor vehicle, starting from the maximum value of the intensity in the case of a horizontal position (intermediate position) of the motor vehicle. In this way the above mentioned conflict of goals can be optimally resolved.

In such a method, it is conceivable that the reduction in intensity is effected continuously at least in regions. Such a design has the advantage that the manner of the nonlinear visualization of the tilt change or the change in the display for the customer is hardly noticeable.

Alternatively or additionally, however, it is also conceivable for the reduction in intensity to be effected at least partially in stages. Successive and stepwise reductions in intensity can also be combined with one another.

As mentioned at the outset, a motor vehicle for carrying out the method is also to be provided with the invention.

Such a vehicle has an interior lighting device in the interior, which comprises at least one row of a plurality of horizontally oriented lighting means arranged next to one another. There is at least one control device for operating the lighting device in dependence on the measurement values of the at least one sensor.

According to the invention, the vehicle is characterized in that a tilt value of the motor vehicle can be detected by the at least one sensor and the illumination means of the interior lighting device can be actuated in a sequential and/or parallel manner depending on the detected tilt in such a way that at least one visualization region is generated which changes with changing tilt. Changes in the visualization region include both changes in location and changes in size and form.

A further development of the motor vehicle can be achieved in that the interior lighting device comprises a plurality of rows of a plurality of horizontally oriented lighting means arranged next to one another. The interior lighting device is thus designed in such a way that a matrix-like arrangement of the lighting means results.

This refinement provides the prerequisite for a good presentability of all the virtual effects mentioned in the method.

The arrangement of the interior lighting at least along the interior of the front door and along the dashboard also contributes to the impressive presentability of the effects.

In order to be able to implement a virtualized auditory accompaniment (Begleitung), it is proposed that at least one auditory output device be present in the interior of the motor vehicle, which can be actuated by at least one control device as a function of the measured values of the at least one sensor.

Preferred embodiments of the present invention are presented in the figures and are explained in more detail in the following description in terms of the figures. Further advantages of the invention are also apparent from this. The same reference signs refer to identical comparable or functionally identical components, even in different figures. Corresponding or comparable properties and advantages are obtained here even if no repeated descriptions or references are made to this effect.

Drawings

The figures are not, or at least not, drawn to scale all the time. In some of the drawings, the proportion or the spacing may be exaggerated so that the features of the embodiments may be more clearly emphasized.

Wherein, respectively schematically:

fig. 1 shows a motor vehicle arranged for carrying out the method, in the region of its cockpit,

figure 2 shows the motor vehicle in a horizontal position from the side,

figure 3 shows the motor vehicle according to figure 2 in a downwardly inclined position,

figure 4 shows the vehicle according to figure 2 in an upwardly inclined position,

fig. 4a shows a diagrammatic representation of the manner of the method, in which the relationship between the inclination of the motor vehicle and the visualization of the inclination by the interior illumination device is linear,

fig. 4b shows a diagrammatic representation of the manner of the method in a first variant, in which the relationship between the inclination of the motor vehicle and the visualization of the inclination by the interior lighting is non-linear,

fig. 4c shows a diagrammatic representation of the manner of the method in a second variant, in which the relationship between the inclination of the motor vehicle and the visualization of the inclination by the interior lighting is non-linear,

fig. 5 shows a motor vehicle for carrying out the method according to another embodiment in a horizontal position,

figure 6 shows the motor vehicle according to figure 5 in an upwardly inclined position,

figure 7 shows the motor vehicle according to figure 5 in a downwardly inclined position,

figure 8 shows the motor vehicle according to figure 5 in a horizontal position arranged for carrying out a further characteristic variant of the method,

figure 9 shows the motor vehicle according to figure 8 in a downwardly inclined position,

FIG. 10 shows the motor vehicle according to FIG. 8 in an upwardly inclined position, and

fig. 11 shows a motor vehicle according to fig. 8 for carrying out yet another characteristic variant of the method.

Detailed Description

Reference is first made to fig. 1. Therein, a motor vehicle K is shown, which is arranged and suitable for carrying out the method according to the invention. The region in the cockpit 2 of the motor vehicle K is represented by the motor vehicle K. In this region, the dashboard 3 is visible, which is framed laterally by two door trims 5 of the front door. This shows a steering wheel 4 and a centre console 6.

In the interior of the motor vehicle K, an interior lighting device 1 is present, which is composed of a front part 1a and two lateral upper parts 1 b.

The front part 1a extends along the dashboard 3 in the manner of a bar or a strip, more precisely transversely to the longitudinal direction of the vehicle. The two lateral upper portions 1b of the interior lighting device 1 extend in the longitudinal direction of the motor vehicle K on the door trim 5. Likewise, the part 1b of the interior lighting device 1 is designed in the form of a strip or a belt. The interior lighting device 1 is preferably used as ambience lighting or is therefore constructed in this way.

In particular, each section 1a,1b of the interior space lighting arrangement 1 consists of at least one row of lighting devices, which are arranged side by side in large numbers (not represented here in greater detail).

It is shown that the interior lighting device 1 or parts 1a,1b thereof (indicated only for the left side 1b) can be actuated via the evaluation and control device 7. In particular, the lighting means of the interior lighting device 1 can be controlled individually or in groups via the evaluation and control device 7.

Furthermore, in the illustration, sensors 8 for acceleration and inclination measurement, an infotainment system 9, an audio output device 10 and a driver assistance system 11 are indicated, which are all connected to the evaluation and control device 7 via a data bus C in a signaling manner. The data bus C may be configured as a CAN bus, for example.

In particular, gravitational acceleration, i.e. acceleration in the vertical direction relative to the center of the earth, can be measured via the sensor 8. From the measurements, the position deviation of the vehicle from the horizon can likewise be derived.

It is possible for the user, via the infotainment system 9 or via an input and output unit (e.g. a touch screen) not presented in more detail, to determine parameters for visualizing the measured inclination or inclination change of the motor vehicle K by means of the interior space lighting device 1. Depending on the setting of the parameters (for example the size of the viscosity of the simulated fluid), the physical model stored in the form of a comprehensive characteristic curve can then preferably be activated in the evaluation and control device 7.

Furthermore, it is additionally conceivable to actuate the interior lighting device 1, which is available for the evaluation and control device 7, also via the output signal of the driver assistance system 11. For example, an output signal of an environmental observation system or a trajectory maintenance system can be envisaged, which, in a dangerous situation, actuates the interior lighting device 1 in such a way that a visual warning signal is thereby output to the driver.

In parallel with the actuation of the interior lighting device 1, an audible output device 10, which may be embodied, for example, as a loudspeaker, can also be actuated by the evaluation and control device 7.

Finally, a virtual plane VE is present which "intersects" the motor vehicle K horizontally and which is extended purely by way of example by a limiting line Ua, Ub below the portion 1a or the portion 1b of the interior lighting device 1.

In fig. 2, the motor vehicle K is now shown from the side. In this illustration, a plurality of lighting means 100 is visible, by which the interior lighting device 1 or parts 1a,1b thereof are in each case formed.

In an embodiment, the illumination device 100 is preferably designed as an illumination diode, particularly preferably as a so-called RGB illumination diode, which can output light of any color. The lighting devices 100 are arranged in two rows along the portion 1a or 1b of the interior space lighting arrangement 1.

The virtual plane VE is formed such that it intersects the motor vehicle K in a horizontal position, i.e., thus in a horizontal plane HE while resting on the horizontal traffic lane F.

Fig. 2 to 4 now illustrate how the visualization of the measured inclination of the motor vehicle K can be realized in the form of an inclination display of a spirit level:

in fig. 2, the horizontal travel or position of the motor vehicle K can thus be seen, so that the visualization region SB1 emerges in the middle of the section 1b of the interior lighting device 1. A corresponding visualization region (not represented here) is likewise visualized in the middle of the section 1a of the interior lighting device 1.

In this operating situation of the motor vehicle K, in particular, four illumination means 100 are simultaneously operated to form the visualization region SB 1. A further number of controlled lighting devices is likewise conceivable, however, in contrast to the exemplary embodiments.

If the vehicle K is now traveling downwards or upwards, the visualization area SB1 moves in the direction of movement B depending on the form of the air bubble of the level by means of the sensor 8 (see fig. 1).

If the motor vehicle K is driven downward, for example, at an angle of inclination α (see fig. 3), the virtual plane VE and the horizontal plane HE are separated from the moment (auseinanderfellen). The virtual plane VE is raised at the rear end of the interior lighting device 1, so that the visualization area SB1 moves in the movement direction B1. Preferably, the visualization area SB1 is proportional in its movement speed to the magnitude of the inclination angle α or the magnitude of the inclination change.

Likewise, when the motor vehicle K is located upward on the traffic lane F with the inclination angle α (see fig. 4), the position of the visualization area SB1 changes. In this case, the lighting means 100 of the interior lighting device 1 are actuated in such a way that the visualization region SB1 executes a movement in the movement direction B2.

The velocity of the visualization region SB1 depends on the magnitude of the inclination angle α or on its changing (gradient) change, respectively. In accordance with the visualization region SB1 in the part 1b of the interior lighting device 1, the visualization region on the part 1a of the interior lighting device, which is likewise not visible here, changes in the event of a tilting of the motor vehicle K about the longitudinal axis (tilting movement).

If the angle of inclination α in the exemplary embodiment in each case exceeds a certain absolute value, the visualization region SB1 moves until the outer, respectively upper end of the interior lighting device 1 remains there until it is again below a certain angle of inclination α.

It is likewise conceivable, in contrast to the exemplary embodiments, for the lighting means 100 to be arranged only in one row or also in a plurality of rows of more than two rows in the case of the interior lighting arrangement 1.

Conceivable variants of the described method, for example in the form of a tilt display in the form of a spirit level, are explained with reference to fig. 4a to 4 c. In fig. 4a, the relationship between the inclination angle β of the motor vehicle K and the visualization of the inclination through the visualization region SB1' is represented on a front part 1a of the interior lighting device 1 (see also fig. 1).

The inclination angle β is a roll angle of the motor vehicle K. The following embodiments are obviously also transferable to the representation of the pitch angle of the motor vehicle K.

The intensity I is represented via the inclination angle β, with which the inclination of the motor vehicle K is represented. In fig. 4a, an intensity I is represented by way of example, which remains constant over the entire region of the angle of inclination β. The relationship between the inclination angle β of the motor vehicle K and the visualization of the inclination through the visualization region SB1' is therefore linear.

This leads to that a tilt change Δ β of the same size always brings with it a position change Δ P of the same size of the visualization area SB1', independently of how large the tilt angle β is. Starting from the horizontal position H of the motor vehicle K, the visualization region SB1' thus moves according to the inclination angle β in the form of a spirit level bubble to the right (position + P1 up to + P4) or to the left (position-P1 up to-P4).

This can easily result in the case of larger tilting angles β in that the boundaries of the possible physical display regions on the front portion 1a of the interior space illumination device 1 are reached and the further tilting changes can no longer be visualized.

As a possible aid, fig. 4b shows a method in which the relationship between the inclination angle β of the motor vehicle K and the visualization of the portion 1a inclined through the front of the interior lighting device 1 is non-linear. In particular, the intensity I during the visualization of the inclination of the motor vehicle K by the interior lighting device decreases continuously in the direction of a stronger inclination or in the direction of a larger inclination angle β of the motor vehicle K, starting from the maximum value Imax of the intensity I in the horizontal position H of the motor vehicle K.

By such a non-linear presentation of the tilt change, the tilt change Δ β in the region of the horizontal position H of the motor vehicle K causes a larger position change (see Δ P1) of the visualization area SB1' than a tilt change Δ β of the same magnitude in the region with the larger tilt angle β, at which the position change is presented less (see, e.g., Δ P4). Compared to the linear trend of the intensity I according to FIG. 4a, therefore in FIG. 4b some positions of the visualization region SB1' (P1 to P1', + P1 to + P1', -P2 to-P2 ', + P2 to + P2', etc.) move although the same size of tilt changes Δ β.

The decrease in intensity I in the direction of the larger inclination angle β can also be effected discontinuously. Thus, fig. 4c shows that, starting from horizontal position H, first there is intensity I1. In the case of reaching a certain limit value of the angle of inclination β, the intensity I drops abruptly to a lower intensity I2. The reduction in intensity I is thus effected in stages, for example in stage S. The reduction of the intensity I, which is indicated by a dashed line only on one side of the angle of inclination β, can likewise be effected in a plurality of stages, for example in two stages S1, S2, for example from the intensity I1 to a lower intensity I2' and finally to an intensity I2. It is also evident from the legend that, by the non-linear course of the intensity I, the position change of the visualization region SB1' is present in different degrees of the inclination angle β, although the same degree of inclination change β is different in magnitude, in particular greater in the region of the horizontal position H than in the case of a larger inclination angle β (see Δ P1 and Δ P4).

With the aid of fig. 5 to 7, a motor vehicle K' is now described, in which a further characteristic variant of the method is carried out.

Unlike the previous motor vehicle K, the motor vehicle K 'has an interior lighting device 1' with a lateral upper part 1b '(on the door trim, not represented) and a front part 1a' (on the dashboard, not represented). In the interior lighting device 1', a large number of lighting elements 100 are arranged in a matrix-like manner next to one another and one above the other. This is particularly well visible by means of the portion 1b 'of the interior space lighting device 1'.

In fig. 5, the motor vehicle K' is located on a horizontal lane F, i.e. in a horizontal position. The virtual plane VE occupied by the lowermost row of lighting devices 100 (and preferably in turn RGB lighting diodes) continues to overlap the horizontal plane HE in this position.

In the method variant described here, the measured inclination of the motor vehicle K' is simulated by the movement of a virtual fluid which is stationary on the virtual plane VE and is enclosed by additional virtual wall sections. Preferably, the dummy fluid should be imitated by the flow behavior of a viscous, i.e. non-flowable, fluid.

In the present embodiment, the virtual wall portion VW1 is formed by the portion 1a 'of the interior space lighting device 1' that is arranged in the instrument panel. Furthermore, the two laterally upward virtual wall portions VW2 are constructed by the two portions 1b 'of the interior lighting device 1' arranged in the door trim (of at least the front door).

The third virtual wall portion VW3, which is located opposite to the virtual wall portion VW1, is formed by an imaginary connecting line between the lighting devices 100 of the last column of the portion 1b 'of the interior space lighting apparatus 1'.

In the "basin" formed by the virtual wall portions VW1, VW2 and VW3, a virtual fluid with a horizontal fluid position (flussigkeitstand) is collected, which in the exemplary embodiment is reproduced by the two rows below the lighting device 100. In this position, therefore, the two rows below the lighting device 100 are actuated in such a way that they form the illuminated visualization areas SB2 or SB 2'. In contrast, it is likewise conceivable for the visualization regions SB2, SB2' to be formed by non-illuminating illumination means 100, i.e. in this case only the two rows above the illumination means 100 are illuminated.

If the motor vehicle K' is moved from a horizontal position into an inclined position, for example on a traffic lane F inclined upward at an inclination angle α, the virtual fluid moves in the "bowl" into such a position, as is shown in fig. 6. The visualization region SB2, i.e. the level of the virtual fluid, is moved in the direction of the appropriate end of the interior lighting device 1'.

In the illustration, the stable state after the change from fig. 5 to the position of fig. 6 is presented.

Reference should be made here to the fact that, depending on the simulated viscosity of the virtual fluid and depending on the gradient of the inclination change, different trends of the virtual fluid occur in the "basin" and thus on the interior space lighting 1'.

For this purpose, a physical model (for example in the form of a comprehensive characteristic curve) is stored in the evaluation and control device 7 (see fig. 1), which influences the operation of the lighting device 100 by means of the evaluation and control device depending on selected parameters, for example the selected viscosity of the virtual fluid.

The same applies to the change in position of the motor vehicle K' in the position inclined downward at the inclination angle α, as it appears from fig. 7.

In contrast to fig. 6, there the virtual fluid collects at a suitable end in front of the interior space lighting device 1', i.e. in the region of the virtual wall portion VW 1.

In the exemplary embodiments according to fig. 5 to 7, the virtual plane VE stretched by the motor vehicle K 'is therefore coupled to the motor vehicle K' as a function of the movement. In this way, in the case of a tilting of the motor vehicle K', the virtual plane VE and the horizontal plane HE are separated.

It is also conceivable here that, in the event of a tilting change of the virtual motor vehicle by actuation of the lighting means 100 of the interior lighting device 1' in accordance with the kinematically coupled plane VE by the motor vehicle, which inclination exceeds a certain gradient, the sloshing effect of the virtual fluid impinging against the virtual wall portions VW1, VW2 and/or VW3 is simulated.

Further conceivable characteristic variants of the method are to be explained in this case with the aid of fig. 8 to 10.

The method is also carried out in a motor vehicle K 'having an interior lighting device 1', in which a plurality of lighting means 100 are arranged in a matrix.

In fig. 8, the motor vehicle K' is again visible in a horizontal position on the horizontal carriageway F. Furthermore, a virtual plane VE is visible, which in this case overlaps the horizontal plane HE and which is stretched by the interior space lighting 1'.

The virtual plane VE forms a separating line T in the interior lighting unit 1', which separates the interior lighting unit 1' into a lower partial region Tu and an upper partial region To in the exemplary embodiment.

Visualization area SB3 is constructed by the lower partial area Tu and visualization area SB4 is constructed by the upper partial area To.

In order to distinguish the visualization regions SB3 and SB4, it is conceivable, for example, for the illumination means 100 of the visualization regions SB3, SB4 to be actuated in such a way that they illuminate in different colors and/or with different brightnesses. Purely exemplarily, it is conceivable that all lighting devices 100 above the separation line T illuminate blue, while all lighting devices 100 below the separation line T illuminate red.

In the case of a traffic lane F inclined downwards at an inclination angle α, the motor vehicle K' assumes the position shown in fig. 9.

It is apparent that, in this approach-specific approach, the virtual plane VE appears as a plane that is kinematically decoupled from the tilting movements (roll and pitch movements) of the motor vehicle K'. That is to say, the virtual plane VE remains oriented identically or parallel to the horizontal plane HE even in the existing inclination of the motor vehicle K'.

This leads to the parting line T being changed in its position relative to the interior lighting device 1' in a downward-sloping inclination. The separating line T then visually intersects the surface of the part 1b 'of the interior lighting device 1' in a diagonal manner. The separating line T runs in this case from the front to the rear in relation to the interior lighting device 1'.

In the present exemplary embodiment, the evaluation and control device 7 stores a physical model such that the virtual axis of rotation D extends approximately through the center of the area of the section 1b 'of the interior lighting device 1'. The axis of rotation D may however be chosen arbitrarily further.

Similarly, in the case of a travel of the motor vehicle K 'on the traffic lane F inclined upward at the inclination angle α, the separation line T is changed in its position relative to the interior space lighting device 1'. In this case, the separating line T runs in a rising manner from front to back in relation to the interior lighting device 1'.

Finally, reference should also be made to fig. 11, i.e., it is also conceivable, in a development of the method-specific variant illustrated in fig. 8 to 10, to "intersect" the motor vehicle K' with a plurality of virtual planes, for example VE1 to VE3, and to stack them completely on top of one another. The vertical spacing between the virtual planes VE1 to VE3 may purely exemplarily be selected to be about 10 cm.

This leads to the following through the interior lighting device 1' with the separating lines T1, T2 and T3. Analogously to the illustrations according to fig. 8 to 10, different partial regions or visualization regions are in turn formed by the separating lines T1 to T3, which can be illuminated in different colors and/or brightnesses.

In the case of a configuration with a plurality of virtual planes, it is expedient to increase the number of illumination means 100 (not shown in the figure) of the interior lighting device 1' accordingly.

REFERENCE SIGNS LIST

1,1' interior space lighting device

1a,1a' part of an interior space lighting device

1b,1b' parts of an interior space lighting device

2 cockpit

3 Instrument panel

4 steering wheel

5-door decoration

6 center console

7 evaluation and control device

8 sensor for inclination measurement

9 infotainment system

10 auditory output device

11 driver assistance system comprising an environmental viewing system

100 lighting device, lighting diode

B, B1, B2 visualization region movement direction

C data bus

Axis of rotation D

F lane

H horizontal position

HE horizontal plane

I, I1, I2, I2' intensity

Maximum value of Imax intensity

K, K' motor vehicle

Position of the P0, + -P1- + -P4, + -P1 '- + -P3' visualization region

Stage of S, S1, S2 intensity

SB1-SB4, SB1' visualization region

T, T1-T43 division line

Partial region under Tu

Partial region above To

Limiting line under Ua, Ub

VE, VE1-VE3 virtual plane

VW1, VW2, VW3 virtual wall section

Angle of inclination alpha

Angle of inclination of beta

Δ β Tilt change

Δ P, Δ P1, position P4