Lighting device for a motor vehicle

Abstract

The invention relates to a lighting method based on at least one lighting device (2, 3) of a motor vehicle, comprising a step of operating according to an adaptive lighting mode of a global lighting beam, formed by a lower partial beam generated by one or more second lighting modules (21, 31) and by an upper partial beam generated by one or more first pixelated lighting modules (23, 33), the upper partial beam comprising a pixelated lower portion of the lighting beam located below a horizon line at the height of the lighting device, the method comprising a step of adjusting the pixelated lower portion according to the mounting height of the lighting device (2, 3) in the motor vehicle in order to guarantee the existence of a glare-free margin below the horizon line.

Description

Lighting device for a motor vehicle

[0001] The invention relates to a lighting method and a lighting device for a motor vehicle. The invention also relates to a motor vehicle equipped with such a lighting device.

[0002] Motor vehicles are typically equipped with various lighting devices commonly referred to as "low beams" and "high beams" to illuminate the road, particularly when visibility conditions are poor, such as in very low light and / or at night. These lighting devices also ensure that the vehicle is clearly visible to other road users.

[0003] When visibility conditions are less than ideal, particularly when driving in very low light, it is standard practice to use headlights commonly known as "high beams" to illuminate the road ahead as far as possible. In other words, the area illuminated by these "high beams" is particularly large. Furthermore, the intensity of the beam(s) from these headlights is greater than that of "low beams."

[0004] This high light intensity can cause glare problems when several vehicles are traveling along the same road, whether passing each other or following one another. In particular, two drivers passing each other can dazzle each other for a short time if they use their high beams. Very specific automotive regulations define maximum glare thresholds that must not be exceeded.

[0005] There are adaptive high beam systems, using the principle known by the acronym ADB (for the English expression Adaptive Driving Beam), which allow the intensity of the light beam(s) from these lighting devices to be lowered to respond to situations of glare.

[0006] However, these adaptive high-beam systems do not always meet safety standards regarding glare. In particular, larger vehicles, such as SUVs or trucks, are generally equipped with headlights mounted higher above the road than smaller vehicles. The height at which these headlights are mounted influences the area illuminated by them, which can complicate compliance with safety standards regarding glare.

[0007] The aim of the invention is therefore to remedy the drawbacks described above.

[0008] To this end, the invention relates to a method of lighting for a motor vehicle from at least one motor vehicle lighting device, comprising an operating step according to an adaptive lighting mode in which an overall lighting beam emitted by said lighting device is generated, said overall lighting beam being formed in the lower part by a lower partial beam generated by one or more second lighting modules, and in the upper part by an upper partial beam generated by one or more first pixelated lighting modules, this upper partial beam comprising a lower pixelated portion located below a horizon line at the height of the lighting device, and comprising a step of adjusting this lower pixelated portion according to the mounting height of the lighting device in said motor vehicle to guarantee the existence of a margin of no glare below the horizon line.

[0009] The adjustment step of the lower pixelated portion of the lighting beam can be implemented by turning off or on certain pixels of one or more of the first pixelated lighting modules.

[0010]

[0011] The adjustment step can be carried out in the form of setting one or more initial pixelated lighting modules depending on the mounting height of the lighting device before its installation in a motor vehicle, or the adjustment step can be carried out automatically depending on the mounting height of the lighting device measured automatically after its installation in a motor vehicle.

[0012] During the adaptive lighting mode operation stage, the lower part of the global lighting beam located below said horizon line (H) can be generated by two non-totally superimposed lightings generated respectively by the lower partial beam obtained by one or more second lighting modules and by the lower pixelated portion of the upper partial beam obtained by one or more first pixelated lighting modules.

[0013] The adjustment step can be carried out so that the upper limit of said pixelated lower portion is located at a non-zero distance h below said horizon line H.

[0014] The adjustment step of the lower pixelated portion of the upper partial beam can be adapted as follows: For a mounting height of the lighting device less than or equal to 0.75 m, the upper horizontal end of the lower pixelated portion is at a distance h between 0 degrees inclusive and 0.3 degrees relative to the horizon line (H); For a mounting height of the lighting device between 0.75 m and 0.9 m exclusive, the upper horizontal end of the lower pixelated portion is at a distance h between 0.1 and 0.5 degrees relative to the horizon line (H); For a mounting height of the lighting device between 0.9 m inclusive and 1.1 m exclusive, the upper horizontal end of the lower pixelated portion is at a distance h between 0.3 and 1 degree relative to the horizon line (H);For a mounting height of the lighting device greater than or equal to 1.1 m, the upper horizontal end of the lower pixelated portion is at a distance h between 0.7 and 1.3 degrees relative to the horizon line H.;

[0015] The upper partial beam may form at least a portion of a high beam lighting, and the method may include a step of detecting another vehicle that may be dazzled by the overall lighting beam, in which case it includes a step of reducing or suppressing the lighting areas directed towards said other vehicle to avoid dazzling it, by respectively reducing and / or extinguishing the corresponding pixels, generating lighting comprising an alternation of lighting areas and shadow areas in a transverse direction above said horizon line (H) and / or above a line located at a non-zero distance h below said horizon line H.

[0016] The upper boundary of the lower partial beam generated in the lower part by one or more second lighting modules can be positioned at a distance d greater than h below said horizon line H.

[0017] The lighting method may include a low beam lighting mode, in which the overall lighting beam includes a lower pixelated portion coming below or at the level of the horizon line (H) generated exclusively by the first or more pixelated lighting modules, and a lower partial beam generated exclusively by the second or more lighting modules.

[0018] The invention also relates to a motor vehicle lighting device, characterized in that it comprises one or more second lighting modules, and one or more first pixelated lighting modules, and at least one control device designed to participate in the implementation of a lighting process as described above.

[0019] The second lighting module(s) may be non-pixelated and / or the first pixelated lighting module(s) may comprise an array of electroluminescent elements independently controlled by at least one control device.

[0020] The invention also relates to a vehicle equipped with such a lighting device.

[0021] These objects, features and advantages of the present invention will be described in detail in the following description of a particular embodiment, given by way of non-limiting example, with reference to the accompanying figures, among which:

[0022] The diagram schematically illustrates a motor vehicle equipped with a lighting system according to an embodiment of the invention.

[0023] The diagram schematically illustrates a lighting system equipped with a lighting device according to an embodiment of the invention.

[0024] The diagram schematically illustrates the lighting generated by a motor vehicle equipped with a lighting system according to an embodiment of the invention during an adaptive lighting mode.

[0025] The diagram schematically illustrates the lighting generated by a motor vehicle equipped with a lighting system according to an embodiment of the invention during low beam mode.

[0026] To facilitate the description and understanding of the figures, an orthogonal coordinate system formed by the X, Y, and Z axes is defined as follows: the X-axis is parallel to a longitudinal axis of the vehicle, that is, the axis along which the vehicle moves in a straight line. The X-axis is oriented from the front to the rear of the vehicle. The Y-axis is parallel to a transverse axis of the vehicle. It is oriented from left to right from the driver's perspective when seated in the normal driving position in the vehicle. The X and Y axes are perpendicular to each other and parallel to the plane on which the vehicle rests. They thus define a horizontal plane. It is therefore assumed by convention that the vehicle rests on a horizontal plane. The Z-axis is a vertical axis. The Z-axis is perpendicular to the X and Y axes. The terms "lower" and "upper" describe a position relative to the vertical axis, and the measurement of a height is similarly understood to be relative to the vertical axis.

[0027] Figure 1 represents a motor vehicle according to an embodiment of the invention. This motor vehicle 1 is equipped with a front lighting system comprising a right lighting device 2 and a left lighting device 3 (also called right and left headlights), which respectively emit a right overall lighting beam 4 and a left overall lighting beam 5, which converge at a short distance in front of the motor vehicle to form a single combined overall lighting beam 6. The motor vehicle 1 travels on a road 9 and is likely to follow another vehicle 40 traveling in the same direction, in front of it on the same lane or an adjacent lane in the case of a multi-lane road. In addition, the motor vehicle 1 is also likely to encounter another vehicle 50 traveling in the opposite direction on a parallel lane.

[0028] The front lighting system 10 according to the embodiment of the invention, schematically described with reference to the figure, is specifically designed not to dazzle the driver of other vehicles 40, 50 positioned in front of the motor vehicle. To this end, it is particularly important that the overall lighting beam 6 generated at the front of the motor vehicle 1 does not reach, or has a luminous intensity below, a predefined acceptable threshold, the rearview mirrors 41, 42, 43 respectively central, right and left of a motor vehicle 40 moving in the same direction and the driving area 51 corresponding to the face of a driver of another motor vehicle 50 coming from the opposite direction.

[0029] A particularly advantageous feature of the invention is that a single lighting device 2, 3 can be easily adapted to several motor vehicles of different heights, such as a recreational vehicle and a truck. In other words, the same lighting device can be positioned at two different heights on two different types of vehicles, while in both cases, through a simple adjustment of the lighting, it meets the requirements for preventing glare, particularly below the horizon, from other motor vehicles in its vicinity.

[0030] To achieve this advantageous solution, a lighting system 10 according to an embodiment of the invention, schematically represented by the figure, comprises a right lighting device 2 and a left lighting device 3, each of which includes at least two lighting modules of different types, namely a first pixelated lighting module 23, 33 and a second traditional, non-pixelated lighting module 21, 31, which may be less pixelated than the first lighting module, and which we will simply call the second lighting module. The pixelated lighting module 23, 33 is intended to form an upper part, which we will call the upper partial beam, of an overall lighting beam 4, 5. The second lighting module 21, 31 is intended to form a lower part, which we will call the lower partial beam, of an overall lighting beam 4, 5.Furthermore, the lighting device 2, 3 operates according to an advantageous lighting process, one embodiment of which will be detailed later.

[0031] The second lighting module, in this example, is non-pixelated and designed to produce a portion of the high beam, and possibly also the low beam, from one or more light sources. It works in conjunction with a first optical element to produce the first part of a general lighting beam (4, 5, right or left). This first part of the lighting beam is a wide beam with a horizontal cutoff at the top. This first beam is also commonly referred to as a "flat" beam.

[0032] We call a pixelated lighting module a lighting module comprising a matrix of electroluminescent elements, that is, a set of electroluminescent elements forming a grid arranged in rows and columns. Electroluminescent elements are, for example, components capable of emitting light rays when an electric current passes through them.

[0033] For example, light-emitting elements can be mini-LEDs, that is, light-emitting diodes smaller than 350 µm on each side. Light-emitting elements can even be micro-LEDs, that is, light-emitting diodes smaller than 80 µm on each side. Each light-emitting element can be individually switched on or off and thus forms a pixel of an image displayed on a screen from the beam of light it emits.

[0034] Light-emitting elements can also be elementary elements of a light-emitting diode, each of these elementary elements forming several photoemissive portions of said diode, these portions being selectively addressable.

[0035] In a matrix of electroluminescent elements of a pixelated lighting module, the lighting of each electroluminescent element is controlled by its own lighting circuit, or alternatively, the selective lighting of an electroluminescent element is obtained by activating the passage of an electric current in a column and in a row of the matrix.

[0036] Thus, the lighting system 10 according to the embodiment of the invention further comprises one or more control devices, for example, a control device 22, 32 respectively for each right lighting device 2 and left lighting device 3. A control device 22, 32 is configured, in particular, to selectively illuminate one or more electroluminescent elements of at least one pixelated lighting module 23, 33. Each control device 22, 32 can be in the form of an electrical board with one or more control circuits. Each control device can be configured to control a given number of electroluminescent elements, for example, from 80 to 200,000, or even more depending on the desired resolution.

[0037] According to the embodiment of the invention, each right 2 and left 3 lighting device therefore comprises a first pixelated lighting module 23, 33, which is intended to form the upper part of an overall lighting beam 4, 5, in particular the high beam, but also an upper part of the low beam, and a second lighting module 21, 31, which is intended to form the lower part, i.e. a lower partial beam, of an overall lighting beam 4, 5, in particular the lower part of the low beam.

[0038] The invention also relies on a lighting method for motor vehicles, implemented in particular by means of the control devices 22, 32 of each pixelated lighting module 23, 33. Specifically, a computer, comprising software and hardware components (not shown), participates in the implementation of the lighting method, based on data from various environmental sensors (not shown), which notably allow the identification of the presence and position of other vehicles 40, 50 mentioned above. These sensors can be incorporated into the lighting device and / or the vehicle.

[0039] Figures 3 and 4 illustrate the implementation of such a lighting method according to one embodiment of the invention. More specifically, these figures represent the lighting provided by a motor vehicle implementing the lighting method according to this embodiment, on a vertical screen positioned facing the vehicle, at the front of the vehicle, at a standardized distance of 25 m. The axis (H) represents a horizontal transverse line, positioned at the same height as that of the lighting device when it is positioned within a motor vehicle. This axis (H) is therefore defined in a standardized manner as a reference axis in the projector's frame of reference, and forms a reference frame for defining the lighting.Specifically, this axis (H) represents a horizon line which, at the traditional height of a dipped headlight—that is, when mounted on a vehicle of relatively low height—allows such a dipped headlight to avoid dazzling other vehicles 40, 50 as long as the beam remains below this axis (H). The axis (H) is thus commonly used as a reference in glare regulations. Traditional dipped headlights are designed to produce a beam whose upper limit corresponds to this axis (H) or is located at a maximum height below this axis H, according to existing standards. The vertical axis Z shown is a vertical axis approximately centered facing the vehicle. The overall beam 6 is thus distributed on either side of this vertical axis Z.The imaginary screen defined by the two axes HZ thus receives the global lighting beam 6 from the lighting system 10 of the motor vehicle 1 according to the embodiment of the invention, the particularity of which is detailed below.

[0040] Depending on the lighting method implementation, the lighting system 10 can operate in two distinct modes: an adaptive mode and a low-beam mode, in which it simply generates a low-beam headlight. Specifically, in adaptive mode, if no other vehicle is detected in the vicinity, this adaptive mode can generate a low-beam headlight, in which the pixelated light produced by each pixelated lighting module 23, 33 is used to its full height.

[0041] La represents the lighting obtained by the global lighting beam 6 during the first adaptive mode in a particular scenario. In this first mode, the principle is to continuously use the two lighting modules 21, 23, 31, 33 of each right lighting device 2 and left lighting device 3 to generate a full high beam, in the absence of any vehicle present in the vicinity of the motor vehicle 1, as mentioned above.

[0042] Upon detection of another vehicle 40, 50 that could be dazzled, the process automatically switches off certain electroluminescent elements of the pixelated lighting modules 23, 33 to create unlit areas, also called shadow zones, at the level of the dazzling zones 41, 42, 43, 51 corresponding to the other vehicles detected in its vicinity. As an example, Figure 1 represents the resulting lighting, which includes in its lower part a lower partial beam 61 generated by the second lighting modules 21, 31. It also includes in its upper part an upper partial beam 63, generated by the pixelated lighting modules 23, 33, in which two zones 631, 632 are switched off, or even have a restricted light intensity, due to the presence, respectively, of three other vehicles 40 and another vehicle 40 that must not be dazzled. These zones 631, 632 thus correspond to two shaded areas.

[0043] On the other hand, according to this lighting method, the lower partial beam 61 of the lighting generated by the second lighting modules 21, 31 is shifted downwards by a non-zero distance d relative to the horizontal axis H. The lower part of the lighting, located below this horizontal axis H, is complemented by a lower pixelated portion 634 illuminated exclusively by the first pixelated lighting modules 23, 33. Moreover, this lower pixelated portion 634 can also leave an unlit space at a non-zero distance h below the horizontal axis H, forming a glare-free margin below the horizontal axis (H): in other words, the upper horizontal end 635 of the lower pixelated portion 634 of this lighting is advantageously positioned at the non-zero distance h below the axis H. Note that the distance h is less than the aforementioned distance d.

[0044] When the horizon line is defined for a given lighting device positioned at operating height in a conventional vehicle, if this device is mounted in a vehicle such as an SUV or truck, the horizon line defined for the beam will be higher, and therefore a beam directly at the horizon may be dazzling. The margin provided by this invention allows for an adjustment to adapt this beam to a vehicle of a different, in this case, greater, height.

[0045] According to the concept of the invention, using pixelated lighting modules 23, 33 to form part of the lighting below the horizontal axis H, replacing the traditional lighting exclusively provided by the dipped headlights, allows for greater flexibility in adjusting the lighting. Thus, the glare-free distance h, and more generally the glare-free nature of a lighting system relative to the H axis, is guaranteed regardless of the type of vehicle on which the lighting device is mounted, i.e., regardless of the mounting height of the lighting device 10. Indeed, for taller vehicles, it is sufficient to adjust this glare-free distance below the horizon line.

[0046] This adjustment can, as in this example, be achieved by lowering the upper horizontal end 635 of the lower pixelated portion 634 by turning off some pixels, for example a few additional horizontal rows in the lower pixelated portion 634 of the lighting, to maintain lighting below the H axis, and in particular a desired distance h of no-glare margin.

[0047] The method therefore includes an essential step of defining a lower pixelated portion 634 by one or more pixelated lighting modules whose vertical dimension is adjusted according to the mounting height of the lighting device relative to the ground, and thus indirectly according to the type of motor vehicle, in order to guarantee in all cases the presence of a lower margin of glare-free lighting, at least in one lighting operating mode. Note that the distances d and h are usually expressed in degrees, since they ultimately correspond to a result that would be obtained by rotating the lighting device downwards by a certain angle relative to a horizontal transverse axis parallel to the axis H.The principle of adjusting the lighting according to the mounting height of the lighting device is finally implemented by increasing the aforementioned distance h as the mounting height increases, thereby reducing the risk of glare by compensating for the increase in mounting height.

[0048] As an example, this lower pixelated portion 634 generated by the pixelated lighting modules can be defined according to the following values: For a mounting height less than or equal to 0.75 m, which is the most common situation, the lower pixelated portion 634 is intended to maintain a distance h between 0 degrees inclusive and 0.3 degrees; For a mounting height of the lighting device between 0.75 m and 0.9 m exclusive, the upper horizontal end 635 of the lower pixelated portion 634 is at a distance h between 0.1 and 0.5 degrees relative to the horizon line (H); For a mounting height of the lighting device between 0.9 m inclusive and 1.1 m exclusive, the upper horizontal end 635 of the lower pixelated portion 634 is at a distance h between 0.3 and 1 degree relative to the horizon line (H);For a mounting height of the lighting device greater than or equal to 1.1 m, the upper horizontal end 635 of the lower pixelated portion 634 is at a distance h between 0.7 and 1.3 degrees relative to the horizon line H.;

[0049] As a point of note, thanks to the use of a first pixelated lighting module 23, 33 which contributes to the lighting below the axis (H) of the lighting system, the aforementioned adjustments can advantageously be made by switching certain pixels of one or more first pixelated lighting modules 23, 33 on or off. Such an adjustment can be made at the factory during the production of a lighting system, provided that the vehicle that will receive it is known, more specifically, that its operating height is known. Alternatively, such an adjustment could be made later. For example, it is possible to implement an automatic adjustment when the lighting system is installed in a motor vehicle, after receiving its height from a measuring sensor. The same lighting module thus becomes suitable for glare-free use in different types of motor vehicles, particularly at different operating heights.

[0050] La represents the illumination generated by the overall lighting beam 6 during the second operating mode of the lighting device according to the lighting method in the embodiment, in which it simply generates a dipped beam. This dipped beam illumination is obtained by a lower partial beam 61 generated by the second lighting modules 21, 31, which remains at the aforementioned non-zero distance d below the horizontal axis H. It is supplemented by a lower pixelated portion 634 illuminated exclusively by the pixelated lighting modules 23, 33, the upper horizontal end of which 635 comes at the level of the horizontal axis (H) or at a certain height below this horizontal axis H, in accordance with lighting standards, to finally obtain a dipped beam of a standardized traditional shape.According to this lighting method, an upper part, the upper partial beam 63, of the low beam lighting is therefore formed exclusively by pixelated lighting modules.

[0051] Note that in both operating modes, part of the lighting generated by the pixelated lighting modules 23, 33 is superimposed on the lighting generated by the second lighting modules 21, 31, to avoid any discontinuity in the vertical direction.

[0052] As a further note, the invention has been illustrated using the overall lighting beam 6 of the lighting system, but the same method is implemented for each overall lighting beam 4, 5, respectively right and left generated by each right and left lighting device.

[0053] The invention thus makes it possible to easily ensure that motor vehicles in the vicinity of a vehicle do not dazzle other drivers, while adapting the lighting to the mounting height of the lighting device through a simple digital adjustment, without the need for mechanical adjustments such as specific orientation of the lighting device. Such mechanical adjustment is not excluded, however, and could be implemented as an alternative or in addition to the digital adjustment described above.

[0054] The invention is not limited to the embodiments described. The lighting device could thus include other pixelated and / or non-pixelated lighting modules than those described. The second lighting module could include several light sources, or even be pixelated in the same way, but with a resolution equal to or lower than that of the first pixelated module, and a lower density of electroluminescent elements.

[0055] The two aforementioned modules of the lighting device may physically be presented as two separate modules, or alternatively may include common parts, or may be made in such a way as to each form a subset of the same modular assembly, for example carried by the same plate and / or having the same power supply.

[0056] Thus, more generally, the lighting method according to the invention comprises an adaptive lighting mode in which a beam of light emitted by a lighting device is generated in its lower part by one or more secondary pixelated lighting modules, and in its upper part exclusively by one or more pixelated lighting modules, preferably high definition, this upper part illuminated by one or more pixelated lighting modules forming a lower part of the lighting beam located at a zero or non-zero distance h below a horizon line (H) defined as the horizontal axis at the height of a lighting system, and characterized in that this lower part of the lighting beam generated by the pixelated lighting module(s) is variable with the mounting height of the lighting device in said motor vehicle to guarantee the existence of said distance relative to the horizontal axis H,which forms a glare-free margin, regardless of the mounting height of the lighting device.

[0057] The lighting system could alternatively include only the first adaptive operating mode. In this adaptive operating mode, the electroluminescent elements of the unlit areas 631, 632 might not be completely switched off, but with reduced light intensity. Furthermore, their light intensity could gradually change as another vehicle 40, 50 moves in the vicinity of the motor vehicle, for example, reducing the light intensity as another vehicle approaches, and vice versa.

Claims

A motor vehicle lighting method using at least one motor vehicle lighting device (2, 3), characterized in that it comprises an operating step in an adaptive lighting mode in which an overall lighting beam (4, 5, 6) is generated by said lighting device, said overall lighting beam being formed in its lower part by a lower partial beam (61) generated by one or more second lighting modules (21, 31), and in its upper part by an upper partial beam (63) generated by one or more first pixelated lighting modules (23, 33), this upper partial beam (63) comprising a lower pixelated portion (634) located below a horizon line (H) at the height of the lighting device, and characterized in that it comprises a step of adjusting this lower pixelated portion (634) according to the mounting height of the lighting device (2,3) in said motor vehicle to guarantee the existence of a glare-free margin below said horizon line (H). Lighting method according to the preceding claim, characterized in that the adjustment step of the lower pixelated portion (634) of the lighting beam (6) is implemented by switching off or on certain pixels of one or more first pixelated lighting modules (23, 33). Lighting method according to any one of the preceding claims, characterized in that the adjustment step is carried out in the form of a parameterization of one or more first pixelated lighting modules (23, 33) depending on the mounting height of the lighting device (2, 3) before its mounting in a motor vehicle, or in that the adjustment step is carried out automatically depending on the mounting height of the lighting device (2, 3) measured automatically after its mounting in a motor vehicle. Lighting method according to any one of the preceding claims, characterized in that during the step of operation according to the adaptive lighting mode, the lower part of the overall lighting beam located below said horizon line (H) is generated by two non-totally superimposed lightings generated respectively by the lower partial beam (61) obtained by one or more second lighting modules (21, 31) and by the lower pixelated portion (634) of the upper partial beam (63) obtained by one or more first pixelated lighting modules (23, 33). Lighting method according to any one of the preceding claims, characterized in that the adjustment step is carried out so that the upper limit (635) of said pixelated lower portion (634) is located at a non-zero distance h below said horizon line H. A lighting method according to any one of the preceding claims, characterized in that the adjustment step of the lower pixelated portion (634) of the upper partial beam (63) is adapted as follows: For a mounting height of the lighting device less than or equal to 0.75 m, the upper horizontal end (635) of the lower pixelated portion (634) is at a distance h between 0 degrees inclusive and 0.3 degrees relative to the horizon line (H); For a mounting height of the lighting device between 0.75 m and 0.9 m exclusive, the upper horizontal end (635) of the lower pixelated portion (634) is at a distance h between 0.1 and 0.5 degrees relative to the horizon line (H);For a mounting height of the lighting device between 0.9 m inclusive and 1.1 m exclusive, the upper horizontal end (635) of the lower pixelated portion (634) is at a distance h between 0.3 and 1 degree relative to the horizon line (H); For a mounting height of the lighting device greater than or equal to 1.1 m, the upper horizontal end (635) of the lower pixelated portion (634) is at a distance h between 0.7 and 1.3 degrees relative to the horizon line H. A lighting method according to any one of the preceding claims, characterized in that said upper partial beam (63) forms at least a portion of a high beam lighting, and in that it comprises a step of detecting another vehicle (40, 50) likely to be dazzled by the overall lighting beam (4, 5, 6), in which case it comprises a step of reducing or suppressing the lighting zones (631, 632) directed towards said other vehicle to avoid dazzling it, by respectively reducing and / or extinguishing the corresponding pixels, generating lighting comprising an alternation of lighting zones and shadow zones in a transverse direction above said horizon line (H) and / or above a line located at a non-zero distance h below said horizon line H. Lighting method according to any one of the preceding claims, characterized in that the upper boundary of the lower partial beam (61) generated in the lower part by one or more second lighting modules (21, 31) is positioned at a distance d greater than h below said horizon line H. Lighting method according to any one of the preceding claims, characterized in that it comprises a low beam lighting mode, in which the overall lighting beam (4, 5, 6) comprises a lower pixelated portion (634) coming below or at the level of the horizon line (H) generated exclusively by the first or several pixelated lighting modules (23, 33), and a lower partial beam (61) generated exclusively by the second or several lighting modules (21, 31). Lighting device for motor vehicle, characterized in that it comprises one or more second lighting modules (21, 31), and one or more first pixelated lighting modules (23, 33), and at least one control device (22, 32) designed to participate in the implementation of a lighting method according to one of the preceding claims. Lighting device according to the preceding claim, characterized in that the second lighting module(s) (21, 31) are non-pixelated and / or in that the first pixelated lighting module(s) (23, 33) comprise an array of electroluminescent elements independently controlled by at least one control device (22, 32). Motor vehicle characterized in that it is equipped with a lighting device according to one of claims 10 or 11.

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