DE102018209061A1 - OPTICAL ARRANGEMENT FOR A VEHICLE, HEADLAMP, VEHICLE AND METHOD FOR THE OPTICAL ARRANGEMENT - Google Patents

Abstract

Disclosed is an adaptive headlight module for motorcycles. This has several LED light sources, which are followed by a Taper primary optics and a secondary optics, which maps the light distribution into the far field. The arrangement of the LEDs and the design of the Taper primary optics is carried out such that a roadway can be optimally illuminated depending on the gradient of the motorcycle.

Description

The invention relates to an optical arrangement for a vehicle according to the preamble of claim 1. Furthermore, the invention relates to a headlamp, a vehicle and a method with the optical arrangement.

From the prior art vehicles are known which have an adaptive cornering light. Here, an orientation of a light distribution of a low beam or a high beam is adapted to a direction of travel of the vehicle. In order to change the light distribution, a headlight module of the vehicle or the headlight modules of the vehicle can be mechanically pivoted by a stepper motor. Alternatively, it is conceivable to adapt the light distribution via a so-called matrix system by software control. In this matrix-like arranged light-emitting diodes (LEDs) are used, which are part of a module. Each individual or groups of LED (s) in the module can / can be separately controlled and thereby switched on and off as well as dimmable.

In vehicles in the form of motorcycles, an adaptation of the light distribution or illumination of the road when cornering is extremely advantageous since, in curves, the angle of the motorcycle greatly shortens a range of the light distribution on a curve inside. Usually, the road continues on the inside of the curve, so that the range of the illumination is extremely important here. The skew leads disadvantageously to a reduced illumination of the road, especially in curves or strong turns, in roundabouts or when turning. Extremely disadvantageous is the illumination when a dipped beam is used as the illumination function. The disadvantage is the illumination but also in a high beam or in an Adaptive Driving Beam (ADB). For this reason, adaptive systems for changing illumination in an inclined position are known for motorcycles. For example, a motorcycle is known from the prior art, which has a headlamp with a low beam. For the dipped beam a pivoting mirror is provided to direct the dipped beam. This is rotated as a function of the angle of the motorcycle, so that the road is better illuminated when cornering. The disadvantage here is that moving components and a servomotor must be used, making this system vulnerable to damage, device technology consuming and costly.

Furthermore, an adaptive motorcycle headlamp is known from the prior art, which has, in addition to the light source for the low beam additional LED elements, each having an optic. The additional LED elements are then switched on in inclined position in curves in addition to the dipped beam.

In contrast, the present invention seeks to provide an optical arrangement for a vehicle, a headlamp, a vehicle and a method, with each of which a flexible illumination in high quality of a desired light field is made possible in each case cost and device technology simply at a tilt of the vehicle.

The object with regard to the optical arrangement is achieved according to the features of claim 1, with regard to the headlamp according to the features of claim 12, with respect to the vehicle according to the features of claim 13 and with regard to the method according to the features of claim 14.

Particularly advantageous embodiments can be found in the dependent claims.

According to the invention, an optical arrangement for a vehicle, in particular for a motorcycle, is provided. This preferably has a plurality of light sources, in particular of semiconductor light sources. At least a portion of the light sources may be controllable, in particular switched on and off and / or dimmable depending on a tilt of the vehicle. Advantageously, the light sources one, in particular common, optics or primary optics downstream. This preferably has a plurality of optical fibers, which are each provided for at least one light source. The light guides may further each have a coupling surface. On the output side, the optical fibers can be connected via at least one common connecting portion of the optical system. The connecting section preferably has an exit surface pointing away from the light guides for the light emerging from the light guides.

This solution has the advantage that a desired light image or light field, which can be formed by the radiation of the light sources, can be configured with the optics in a device-technical and cost-effective manner. Thus, the optics can be made flexible so that the optical arrangement can then output a desired light image even with a tilt of the vehicle and corresponding control of the light sources. The optics has a high creative freedom, for example, the Embodiment of the coupling surfaces, the shape and length of the light guide and the design of the exit surfaces are adaptable to the conditions of use to be able to emit an advantageous light image even when tilted the vehicle. By contrast, it is provided in the prior art to provide a respective individual optical system and a respective reflector for a respective light source, in particular for light sources which are connected in an inclined position of the vehicle. This leads to a high installation and adjustment effort. Furthermore, a resulting light distribution is inhomogeneous and allows only rough adaptation steps in a change in the tilt of the vehicle. In addition, a weight in the prior art by the plurality of components is comparatively high. The comparatively heavy components are then also installed on a disadvantageous physical position in a vehicle in the form of a motorcycle, namely in a comparatively high mounting height and usually in front of a front axle. Such an arrangement of heavy components has a very large impact on the driving physics of a motorcycle compared to, for example, a car. By the common optical system according to the invention, which is flexibly ausgestaltetbar by the light guide and the common exit surface, a weight can be saved. Furthermore, the optics can thereby also be made comparatively small. Due to the comparatively small installation space of the optical arrangement, a design of a headlight employing the optical arrangement can be made flexible in comparison with the prior art. In addition, the different illuminated areas, for example, in a far field or an apron, can be better matched by the optics compared to a headlight with a variety of individual optics. Furthermore, a sharp demarcation of individual areas of the light field in the optical system according to the invention can be implemented more easily. In other words, it is advantageously provided in the optics or the Taperkonzept for adaptive motorcycle headlights that only one optic for the adaptive light, in particular for the low beam or high beam, is needed. As a result, a weight and it can be saved additional components. Furthermore, the concept can be easily modified depending on the customer's request, for example by changing the number and / or arrangement and / or type and / or size of the light sources and / or the light guides differently. Through the optics it is further possible to emit the light of the light sources without dark spaces.

In a further embodiment of the invention, the optics, which may be used as a primary optic, followed by a secondary optics. By way of secondary optics, for example, an image can be taken in the far field and / or near field of the vehicle, for example above a point reflection or without point reflection. In other words, the primary optics together with the plurality of light sources can be made extremely small and the light distribution can be imaged into the far field via a single secondary optics. Thus, the light distribution of the light sources can be preformed by the optics or Tapergeometrie imaged by means of the appropriate secondary optics in the far field.

In a further embodiment of the invention, at least some of the light sources are used for a lighting function. The illumination function is, for example, a low beam function and / or a high beam function. It would also be conceivable, alternatively or additionally as a lighting function, a turning light function and / or a fog light function and / or a combination and / or a modification, such as an adaptive driving beam (ADB) or an adaptive front lighting system (AFS) said and other functions provided. AFS is used, for example, in the dimming function and may provide a motorway light and / or a bad weather light and / or a city light. ADB is preferably used in the high beam and can provide a glare-free high beam. In other words, it is thus possible, in particular, to implement the low-beam function and high-beam function via a single optical system, in particular with a single aperture. The light sources can be controlled dynamically. The optics can thus advantageously be used not only for the low beam function, but also for high beam function. Until now, it has been customary to provide only the low-beam function for cornering light concepts, since its illuminated "field of view" (FoV) is arranged vertically lower in comparison with the high beam function due to the cut-off line and therefore the range on the inner side of the curve is particularly unfavorable in curves is shortened. With the optical arrangement according to the invention, the curve lighting concept can now also be adapted to the high beam function in a technically simple manner.

In a further refinement of the invention, in addition to at least one light source for the lighting function switched on in the straight-ahead or non-inclined position of the vehicle, at least one further or a further additional one can be provided via an oblique position of the vehicle in at least one direction of rotation or pivoting direction or in both directions of rotation of the vehicle. Light source - or light source for the tilt - be turned on for illuminating a part of a desired light field for the illumination function or be changed in their brightness or be dimmed. The additional light source / s is / are preferably off or dimmed in non-skewed position. The additional light source can also be dimmed turned on and with increasing tilt more or with a larger luminous flux Radiate light and dimmed again according to a decreasing tilt. Due to the additional light source in combination with the advantageous optics, an optimal and / or homogeneous illumination of a desired light field, in particular in front of the motorcycle, and / or the range of the illumination can be achieved in a simple manner with an inclined position of the motorcycle, for example when cornering increase.

It is conceivable additionally to use the at least one additional light source or a part of the additional light sources or all additional light sources for a further illumination function, for example for the high beam function alternatively or additionally. If the high beam or the further illumination function is switched on, it is conceivable that the additional light sources are controlled, that is, for example, switched on and off and / or dimmable to hide objects, for example, oncoming traffic, if necessary. If only the low beam is switched on, then the additional light sources for the inclined position can be used accordingly.

The light field is, for example, a far field or near field. As a far field, an area that is far away from the light source can be designated, whereby a precise location of a light emission of the light source is negligible (approximate point light source). In a vehicle, a distinction is typically made between the apron and the far field, where the apron can mean the first few meters in front of the vehicle.

Preferably, the optics is configured in such a way or at least one additional additional light source - or light source for the oblique position - arranged such that at least one or the additional additional light source illuminates at least a portion of a light field or apron, so that when tilted the vehicle that, in particular desired, light field or apron is maintained in comparison to the non-skewed position or at least partially retained.

Preferably, at least one additional light source of the light sources for the inclined position of the vehicle can be provided for each respective direction of rotation of the vehicle.

In other words, the at least one additional additional light source is arranged in such a way that it illuminates at least a part of a light field section which is no longer illuminated by the at least one standard light source when the vehicle is tilted and which is at least straight ahead when the vehicle is traveling straight ahead a standard light source is lit.

The oblique position of the vehicle is preferably the vehicle slant. It would also be conceivable to provide the effective inclined position. The vehicle leaning may be represented by the angle between a plane extending through the center of gravity of the vehicle and perpendicularly intersecting the axis of rotation of the rear wheel and a plane perpendicular to the road surface and parallel to the vehicle longitudinal axis. The effective bank angle may be represented by an angle extending between a plane extending through the center of gravity of the vehicle and the bearing points of the wheels on the road surface and a plane perpendicular to the road surface and parallel to the longitudinal axis of the vehicle.

Advantageously, a banking angle range of the vehicle is divided into at least two partial angle ranges in at least one direction of rotation (pivoting direction) or both directions of rotation (pivoting directions) of the vehicle. A respective partial angle range can be assigned to at least one additional light source of the light sources. Thus, for example, at least two partial angle ranges with at least one respective available additional light source and in the other rotational direction at least two partial angle ranges with at least one respective additional light source can be provided in one direction of rotation. For example, with two partial angle ranges in one direction of rotation, the first partial angle range extends from the non-oblique position of the vehicle between, in particular approximately, 2 ° and 20 ° and the second partial angle range, in particular approximately between 20 ° and 40 ° or 60 ° (for the other direction of rotation can apply accordingly). In a further embodiment of the invention can be provided that in one or both directions of rotation of the vehicle, when the skew angle is in one of the partial angle ranges or greater than a partial angle range, the additional light source / n associated with this partial angle range is / are switched on, in particular in a high beam function. Thus, the illumination of the desired light field in the inclined position can be done even more accurately and as needed. In other words, a higher-resolution illumination of the light field in the oblique position can be achieved by dividing the inclined angle range into at least two partial angle ranges. In other words, if maximum illumination is required, then the auxiliary light sources are switched on as soon as the starting angle is exceeded, ie, for example, the range between 2 ° and 20 ° is switched on from a 2 ° inclination. This is extremely advantageous in the high beam function.

The partial angle ranges are stored, for example, in an evaluation unit, which can be arranged on the vehicle. The evaluation unit can then control the light sources according to the tilt angle.

Alternatively or additionally, it is conceivable that in one or both directions of rotation of the vehicle, if the angle of inclination is greater than one or more partial angle range / s - ie the partial angle range / s in the corresponding direction of rotation - associated with this / this Teilwinkelbereich / en respectively associated additional light source / s switched on - especially in the low beam function - or additionally switched on - especially in the high beam function - is / are. This means that preferably the additional light sources of those partial angle ranges which are swept by the angle of inclination of the vehicle are switched on or additionally switched on. In other words, if no glare is to occur, in particular in the case of the low-beam function and / or an Adaptive Driving Beam (ADB), the area is only switched on when the inclination is "complete", ie. e.g. in the range between 2 ° and 20 ° only from 20 ° inclination. If, for example, the vehicle has a banking angle of 25 °, then the additional light sources would be switched on, for example, by a partial angle range between 2 ° and 20 °. If the additional light sources are additionally switched on, the additional light sources in the partial angle ranges between 2 ° and 20 ° and between 20 ° and 40 ° would be switched on in the said case. Conversely, of course, if the skew angle is smaller than one or more partial angle ranges / e and / or lies in a partial angle range, then the additional light source (s) of the partial angle range (s) are switched off.

This solution has the advantage that in a simple manner with increasing skew angle gradually more additional light sources can be switched on and off and / or up and dimmed.

In a further embodiment of the invention can be provided that at a tilt of the vehicle, the (standard) light source / s for the lighting function, which no longer illuminates the desired light field / s and are turned on in the non-banking of the vehicle at a lighting function , off or dimmed is / are. Thus, for example, that light source or those light sources which would dazzle oncoming traffic at an oblique position will be switched off or dimmed. This advantageously also leads to energy savings. As a lighting function of these light sources, for example, the high beam function can be provided. Thus, a kind of adaptive high beam for motorcycles is provided. It can always be an ideally lit driving situation, even in curves at high and / or particularly low speeds, be provided. Furthermore, a reduction of the self-glare can occur when, in curves or in bad weather, the front lane area or the apron is a little less illuminated by the light sources that unnecessarily illuminate the apron in curves dimmed or off. With this concept, an adaptive dipped beam is thus advantageously provided.

Preferably, at least one means is provided, via which the oblique position of the vehicle can be detected. Furthermore, it is conceivable to provide the evaluation unit or a control unit which detects the inclined position via the means and controls the light sources accordingly. For skew detection, for example, a sensor for detecting a steering angle of the vehicle is provided and / or it is a sensor for, in particular direct, detecting the inclination of the vehicle can be arranged. In other words, the steering angle can be taken into account for the control of the cornering light and / or position sensors can determine the current banking angle of the vehicle and introduce the necessary input for the cornering light control. Furthermore, it is conceivable to take into account the speed of the vehicle for detecting or detecting the inclined position of the vehicle and, for example, to use a speed sensor for this purpose.

In a further embodiment of the invention can be provided that have the coupling surfaces in the same or approximately in the same direction in the optics. Further preferably, the coupling surfaces may lie in a common plane.

The optic preferably consists at least partially or completely of silicone. As a result, this can be designed inexpensively, even with a comparatively complex geometry. The silicone is also advantageously an optically transparent material with sufficiently high resistance to high power density occurring, which is also extremely flexible formable. Alternatively, it is conceivable to use plastics such as polymethyl methacrylate (PMMA), polycarbonate (PC) or glass for optics, wherein this may be dependent, in particular, on a distance, a specific form of the optics and a radiation intensity / luminance of the light sources.

In a further embodiment of the invention preferably has the exit surface of the optics for a respective light guide at least one respective exit surface portion. In each case, the radiation of the radiation passing through the associated optical waveguide can be adjusted via this. With the exit surface sections, the radiation of the individual optical waveguides can thus be flexible with respect to their spatial exit from the optics, can be adapted in terms of device technology simply, compactly and inexpensively for a respective optical waveguide. Such an optic can also be scaled extremely easily, for example by simply adding or omitting additional pixels in the form of light guides with associated exit surface sections. If the optic is made of silicone, for example, then this can be implemented extremely cost-effectively, it is only necessary to use more or less material.

In a further embodiment of the invention can advantageously be provided that the or the exit surface portion / e for the light source / s of the illumination function seen in the direction of gravity, especially in a non-banking position of the vehicle, above or the exit surface portion (s) / e of the additional Light source (light source / s for tilt) is / are. Thus, for example, the cut-off line across the optics can be formed in a simple manner if it lies between the outcoupling surface sections of the illumination function and the outcoupling surface sections of the additional light sources. It can thus be further provided that the exit area section / s of the illumination function above the cut-off line and the exit area section / s of the additional light source / n are provided below the cut-off line, this being the case for a non-lighting Inclined position can be seen in the direction of gravity. This embodiment is preferably provided when the radiation emerging from the optics is spot-reflected and then spot-reflected, for example, in the far field. If the emerging from the optics radiation is not point mirrored, for example, in the far field, then the above and below listed locations, for example, in other embodiments, vice versa and vice versa seen, which then, for example, the exit surface sections for light sources of the lighting function in the direction of gravity Seen below the exit surface portions may be provided for the additional light sources. For a point mirror, the optics, which may be regarded as primary optics, a device or an optical element or optics (secondary optics) may be connected downstream. As a result, the radiation emerging from the optics (primary optics) can then be spot-reflected. If no point-mirrored image, for example, be provided for the far field, it is conceivable the optics (primary optics) nachzuschalten an optical arrangement that performs several point mirroring, so that the projected into the far field image is not point-mirrored, or provides no point mirroring.

The light-dark boundary extends at least partially or essentially completely or completely, for example in the non-inclined position of the vehicle, preferably in the horizontal direction and / or perpendicular to the direction of gravity.

If a low-beam function and a high-beam function are provided as the illumination function, then, for example, the exit surface section (s) for the light source in the low-beam function can be provided above the exit surface section (s) for the light source (s) of the high beam function, in particular in the case of a non-skew position Vehicle considered. Thus, the light-dark boundary can be formed in a simple manner between the decoupling surfaces for the high-beam function and the decoupling surfaces for the low-beam function. Thus, for example, the exit face portion or exit face portions for the low beam function are viewed in the direction of gravity above the cutoff, and the exit face portion (s) of the high beam function are located below the cutoff, particularly in the off-angle and in the direction of gravity seen.

In a further embodiment of the invention, the exit surface section / s for the additional light source / s can be arranged between the exit surface sections for the light sources of the high beam function and / or the low beam function. This leads to a compact design of the optics. In particular, this further advantageous that the / the exit surface portion / e of the high beam function farther out and / or below the optics in comparison to the decoupling surface / s of the additional light source / s and / or the / the light source / s of the low beam function is / are provided. In this position, radiation for the high-beam function can be emitted by the optics extremely effectively.

Advantageously, a decoupling surface section in the form of a circular sector, in particular a common circle or circular section, can be provided for at least a part or for all additional light sources. This is advantageous because, for example, the partial angle ranges over the circular sectors Device technology can be easily implemented. Thus, for example, a respective circular sector can be assigned to a partial angle range and, for example, also have a sector angle corresponding to the assigned partial angle range. Advantageously, the circular sectors are arranged symmetrically to use these in both directions of rotation of the vehicle for the additional light sources. The circular sectors preferably together form a circle or a circular section. For example, it can also be provided that the circular sectors together form a semicircle. Furthermore, it is also possible that the circular sectors form two circular segments, wherein a respective circular segment can be provided for a respective rotational direction. The circle segments may be circumferentially spaced and / or have a common center. It is conceivable that its chord is located on the light-dark boundary of the exit surface of the optics. The chord can, for example, adjoin the exit surface sections of the illumination function, in particular the dipped beam function. It is also conceivable that the chord, as seen in particular in a non-oblique position of the vehicle, extends in the horizontal direction or perpendicular to the direction of gravity. Preferably, a center of the circle or the circular section or the semicircle lies in or adjacent to the light-dark boundary of the optics. It is also conceivable that the center lies on an axis of symmetry of the optics. Alternatively or additionally, it may be provided that the center adjoins the exit surface sections of the illumination function, in particular the low-beam function.

In a further embodiment of the invention, it can be provided that the circular sectors of the exit surface sections lying below the cut-off line form a semicircle in the optics and that at least one circular sector of an exit surface section is provided above the cut-off line of the optics for a respective direction of rotation especially when the vehicle is not leaning. Thus, in an oblique travel of the vehicle formed as a circle sectors exit surface sections, which are seen above the cut-off, especially in a non-banking position of the vehicle, are moved below this cut-off, seen in particular in an inclined position of the vehicle the cut-off line is not "panned" or "twisted" Preferably, at least one or at least two exit surface section / s for the light source (s) of the illumination function, in particular the low-beam function, may be formed between the circular sectors of the exit surface sections above the cut-off line, especially when the vehicle is not leaning. In other words, the circular sectors or radial segments are thus continued on the 0 ° line. This also makes it possible to realize a horizontal cut-off or cut-off even when cornering. This means that in the case of oncoming traffic or switched off main beam, the road will continue to be illuminated homogeneously up to the cut-off line and the oncoming traffic will not be dazzled. In this case, circular sectors above the cut-off line can be dimmed down in order to prevent the driver from being blinded by an excessively light apron.

In a further embodiment of the invention, one or more or in each case one or more further exit surface section (s) of the light sources of the illumination function, in particular the high beam function, and / or the additional light sources may be provided radially in some of the circular sectors or in all circular sectors. As a result of the further radial segmentation of the circular sectors, it is possible, for example, to additionally enable an adaptive fading-out of other road users during cornering.

In a further embodiment of the invention, the exit surface sections for at least the illumination function or for the illumination functions and / or for the additional light source / s with respect to a plane which extends perpendicular to wheel axes of the vehicle may be formed symmetrically.

The coupling surfaces or a part of the coupling surfaces or at least one coupling surface can / can be arranged in the direction of the main optical axis of the optical system in each case in series with the associated outlet surface section. It is also conceivable that the coupling surfaces or a part of the coupling surfaces or at least one coupling surface in each case - seen in the direction of travel or seen in the direction of the longitudinal axis of the vehicle - offset to the associated exit surface portion or can be slightly offset / can. Thus, a light guide or a part of the light guide or all light guides - seen in the direction of travel or seen in the direction of the longitudinal axis of the vehicle - not be straight and / or be oblique. Alternatively or additionally, it can further be provided that at least a part of the light guides or for a respective light guide a plurality of light sources is provided.

In a further embodiment of the invention, the light sources are preferably arranged on one, in particular common and / or planar printed circuit board or substrate. The light sources are, for example, approximately star-shaped or arranged like a half star. For example, multiple rows of LEDs extending from a midpoint in the radial direction may be provided.

Furthermore, it is conceivable that a series of LEDs is provided, which extends in the horizontal direction, in particular when the vehicle is not leaning. From the row center of this row, one or more further rows of LEDs may extend radially upwards or away from the roadway, especially when the vehicle is not leaning.

In a further embodiment of the invention, at least one LED can be provided for a respective outlet area section designed as a circular sector. These LEDs can be arranged on the printed circuit board or circuit board approximately radially, in particular starting from a center point, so that depending on the angle of inclination of the vehicle, individual LEDs or segments can be switched on. Due to the radial arrangement, for example, the light-dark boundary can be readjusted as desired as a function of the inclination with a dimming light distribution. Depending on the inclination of the optical arrangement or the vehicle, the LEDs are dimmed and / or turned off differently, so that no "dark spots" on the road, the apron or near field is not illuminated too bright and the light distribution is optimally adjusted.

Furthermore, it is conceivable that a plurality of LEDs are provided for at least one optical fiber or for a part of the optical fibers or for a respective optical fiber. It is also conceivable to use different types, in particular different sizes and / or shapes of LEDs.

In other words, the arrangement of the LEDs on the circuit board and the design of the optics is such that the road can be optimally illuminated depending on the slope of the vehicle, that is, even with a strong tilting, especially at low curves.

In a further embodiment of the invention, the optical arrangement is preferably designed as a module, which allows easy installation and leads to a compact design.

Furthermore, it is conceivable that the light sources are adaptively controllable. For example, a part of the light sources or all the light sources can be dimmable and / or switched on and off.

The optical arrangement can be used in a simple manner both as a cornering light for narrow, slow-moving curves, in particular at speeds ≤ 60 km / h, in particular in the case of strong vehicle inclination. It is also conceivable to provide the optical arrangement for a low-beam function by adjusting the cut-off line in the case of faster curves and / or less vehicle inclination.

According to the invention, a headlamp is provided for a vehicle with an optical arrangement according to one or more of the preceding aspects. Alternatively, it is conceivable to use the spotlight for effect lighting, entertainment lighting, architainment lighting, general lighting, medical and therapeutic lighting or lighting for horticulture.

Due to the optical arrangement, the headlight can advantageously have a comparatively small optical aperture, despite its high functionality. It is therefore only a small space requirement for the headlight necessary, resulting in a high degree of freedom in the design design of the device in which the headlamp is used.

According to the invention, a vehicle is provided with a headlight or an optical arrangement according to one or more of the preceding aspects.

The vehicle is, for example, a single-track motor vehicle, such as a motorcycle. This can also be understood as motorcycles which, for example, have two adjacent wheels in one axle. As an alternative to the single-track motor vehicle, it is conceivable to provide another tilting vehicle. For example, as a vehicle, a bicycle or boat or plane or train (with tilting technology) may be provided. In other words, the vehicle may also be an aircraft or a waterborne vehicle or a land vehicle. The land-based vehicle may be a motor vehicle or a rail vehicle. It is also conceivable that the vehicle is a truck or a passenger car or a motorcycle. The vehicle may further be configured as a non-autonomous or semi-autonomous or autonomous vehicle. If the headlight is used in the vehicle, this is preferably a headlight.

According to the invention, a method with an optical arrangement according to one or more of the aforementioned aspects is provided, wherein the light sources or a part of the light sources can be controlled.

A light emitting diode (LED) or light emitting diode may be in the form of at least one individually packaged LED or in the form of at least one LED chip having one or more light emitting diodes or in the form of a micro LED. Several LED chips can be mounted on a common substrate ("submount") and form an LED or be attached individually or jointly to, for example, a circuit board (eg FR4, metal-core board, etc.) ("CoB" = chip on board). The at least one LED can be equipped with at least one own and / or common optics for beam guidance, for example with at least one Fresnel lens or a collimator. Instead of or in addition to inorganic LEDs, for example based on AlInGaN or InGaN or AlIn-GaP, it is generally also possible to use organic LEDs (OLEDs, eg polymer OLEDs). The LED chips can be directly emitting or have an upstream phosphor. Alternatively, the light emitting component may be a laser diode or a laser diode array. It is also conceivable to provide an OLED luminescent layer or a plurality of OLED luminescent layers or an OLED luminescent region. The emission wavelengths of the light emitting components may be in the ultraviolet, visible or infrared spectral range. The light-emitting components may additionally be equipped with their own converter. The LED chips can emit white light in the standardized ECE white field of the automotive industry, for example realized by a blue emitter and a yellow / green converter.

• 1 in einer schematischen Darstellung eine optische Anordnung gemäß einem Ausführungsbeispiel,
• 2 in einer Vorderansicht eine Optik (Primäroptik) für eine optische Anordnung gemäß einem Ausführungsbeispiel,
• 3 in einer Hinteransicht ein Fahrzeug in einer Schräglage und
• 4a und 4b in einer Vorderansicht eine Optik (Primäroptik) einer optischen Anordnung gemäß einer weiteren Ausführungsform in zwei unterschiedlichen Positionen.

In the following, the invention will be explained in more detail with reference to exemplary embodiments. The figures show:

• 1 in a schematic representation of an optical arrangement according to an embodiment,
• 2 in a front view of an optics (primary optics) for an optical arrangement according to an embodiment,
• 3 in a rear view a vehicle in a tilted position and
• 4a and 4b in a front view, an optics (primary optics) of an optical arrangement according to another embodiment in two different positions.

According to 1 is an optical arrangement 1 represented for a vehicle in the form of a motorcycle. The optical arrangement has a printed circuit board 2 , on which a variety of light sources in the form of light-emitting diodes 4 (LEDs) are arranged, wherein for the sake of simplicity, only one LED is provided with a reference numeral. The LEDs 4 is an optic 6 downstream as primary optics. This in turn is another look 8th downstream as secondary optics. The optics 8th is designed plankonvex, with a flat side to the optics 6 has. The optics 6 is designed as Taperoptik and has a respective LED 4 a light guide 10 on, wherein for the sake of simplicity, only one optical fiber is provided with a reference numeral. The light guides 10 each have a coupling surface 12 pointing to the respective LED 4 has. The coupling surfaces 12 are arranged in a common plane. The light guides 10 open with their decoupling surface in a connecting section 14 the optics 6 , The connecting section 14 together with the light guides 10 is designed in one piece.

The optics 6 has a downstream optics 8th pointing exit surface 16 for a particular light guide 10 an exit surface section 18 has, of which only one is provided with a reference numeral for the sake of simplicity. The light guides 10 are designed approximately frusto-conical and widen in the direction away from their respective coupling surface 12 , Furthermore, the light guides 10 have a different cross-sectional area, which differs for example in size and / or shape.

According to 1 are the LEDs 4 arranged as a "half star". Such is an upper row 20 provided, which extends in the horizontal direction, when the optical arrangement 1 is mounted in a vehicle and the vehicle is not in an inclined position. The series 20 here has six LEDs 4 on. In the middle of the row 20 extend approximately radially and down (seen in the vertical direction) a plurality of rows 22 to 30 , These can, in particular, be arranged on pitch circle. The LEDs 4 are here symmetrical to a vertical axis, in particular when the vehicle is not in an inclined position, arranged. The series 26 lies on the symmetry axis. The LEDs 4 the series 20 are preferably used for a low beam function.

Drives the motorcycle, the optical arrangement 1 has, straight ahead or is not in an inclined position, so are the LEDs 4 the series 20 switched on. If, for example, the motorcycle now reaches a left turn and thus an inclined position, then the optical arrangement is also tilted. Depending on the inclination, the radial rows then become, for example, a left-hand bend 30 . 28 and 26 hooked up. At a slight angle, the series will be 30 , at a greater inclination in addition, the series 28 and in a large tilt in addition to the series 26 hooked up. If the bike gets out of its tilt, then the LEDs will turn 4 of the ranks 26 . 28 and 30 accordingly again, in particular sequentially switched off. In the other direction, depending on the angle additionally LEDs 4 of the ranks 22 . 24 and 26 activated and deactivated and / or dimmed. In the slope can be a part of the LEDs 4 the series 20 dimmed or deactivated, for example, not to blind an oncoming traffic. In other words, depending on the inclination of the module or motorcycle, the LEDs 4 Dimmed differently and / or switched on and off, so that no dark areas on the road, the apron is not too bright, the oncoming traffic is not dazzled and the light distribution is optimally adapted.

According to 2 is another embodiment of an optic 32 provided, which is used as a primary optic. The optics 32 indicates according to the optics 6 out 1 for a respective LED on a light guide. In 2 are next to the optics 32 LEDs visible. That's how LEDs become 34 to 46 used for a dimming function. Other LEDs 48 to 56 are intended for a high beam function. LEDs arranged on a pitch circle 58 of which, for the sake of simplicity, only one is provided with a reference numeral, can be used as additional light sources in a tilted position of the motorcycle. The LEDs 38 to 46 the dipped beam function and the remaining LEDs 48 to 58 are separated by a horizontal line, and this is the case with a motorcycle that is not in an inclined position. The LEDs 38 to 56 Each is a respective exit surface section 60 the optics 32 assigned, of which only one is provided with a reference numeral for the sake of simplicity. The LEDs 34 and 36 have a common exit surface section 62 on. A respective exit surface section 64 for a respective LED 58 is each formed as a circular sector. These have a common center point, which is on an axis of symmetry of the optics 32 and at or above or below the horizontal separation between the LEDs 38 to 46 the low beam function and the LEDs 48 to 56 the high beam function is located. Together form the exit surface sections 64 in the form of circular sectors, of which only one is provided with a reference numeral for the sake of simplicity, a semicircle. The exit surface sections 64 are according to 2 the same size, but can also be designed differently. Depending on the angle of the motorcycle then the LEDs 58 the exit surface sections 64 switched on. For example, in a right turn of the motorcycle is in accordance with 2 one or more LEDs 58 to the LEDs 38 to 46 the dipped beam function is activated, depending on the skew angle, starting from the upper right LED 58 in 2 , The same applies if, alternatively or in addition to the LEDs 38 to 46 the LEDs 48 to 56 the high beam function are turned on. In other words, in a right turn, the LED / s 58 travels from the right upper LED 58 in 2 , in the direction away from the motorcycle emitted light image below the cut-off and is / are then turned on. The radiation of the upper right LED 58 in 2 is viewed from the front first on the secondary secondary optics, see for example 1 , point-mirrored. Looking ahead, starting from the motorcycle, the radiation is the right upper LED 58 then at a right turn below the cut-off and in 2 above the cut-off line 136 , For example, in a right turn lower right (from the driver's point of view) more light is needed. This means that as shown in 2 the LEDs 58 starting from the upper right LED 58 be added depending on the inclination.

According to 2 are the LEDs 48 to 56 for the high beam function radially outward of the LEDs 58 arranged. Thus, also their exit surface sections 60 radially outward of the exit surface sections 64 the circular sectors provided.

According to 3 is a motorcycle 66 seen from a rear side, which is located in an inclined position, shown. It is the inclination angle α shown. The angle of inclination α is here between a plane extending through the center of gravity 67 of the motorcycle 66 extends and perpendicularly intersects the axes of rotation of the wheels, and a plane arranged perpendicular to the road surface, which also extends parallel to the vehicle longitudinal axis. For detecting the skew angle α is a sensor 68 at the motorcycle 66 provided, which is shown schematically. The angle of inclination α can be determined by an evaluation unit 70 (shown schematically) connected to the sensor 68 communicates and, for example, the motorcycle 66 or is provided externally, are divided into several partial angle ranges, in both pivot directions of the motorcycle 66 , Reached the tilt of the motorcycle 66 then the corresponding partial angle range and / or is greater than one or more partial angle ranges, then an LED (s) assigned to this / this partial angle range (s) is 58 , please refer 2 , on or dimmed on or off (or dimmed). In the first direction, for example, between 0 ° and 90 ° five equal partial angle ranges can be provided. The same applies to the other direction of rotation. In one direction of rotation, for example, the first partial angle region of the first exit surface portion 64 in the form of a circular sector adjacent to the exit surface portion 60 the LED 40 is intended to be assigned. in the next partial angle range can then according to the next exit surface section 64 be assigned in the form of a circular sector, etc. The same can be provided for the other pivoting direction.

In 4a is another embodiment of an optic 72 provided, which is used as a primary optic. The optics 72 has a plurality of exit surface sections 74 of which, for the sake of simplicity, only one is provided with a reference numeral. For a respective exit surface section 74 an LED is provided. The LEDs 76 to 86 are used here for a dimming function and the LEDs 88 to 132 are intended for a curve light function. It would also be conceivable one or more of the LEDs 92 to 106 and 116 to 128 alternatively or additionally use for a high beam function and / or further lighting function. The LEDs 88 to 110 is in each case an exit surface section 74 in the form of a circular sector 134 assigned, for the sake of simplicity, only one is provided with a reference numeral. The circular sectors 134 have a common center and are arranged symmetrically. The center lies in the area of a light-dark border 136 , The circular sectors 134 the LEDs 92 to 106 are below the cut-off line 136 and are formed as a semicircle. Above the cut-off line 136 lie for a respective pivoting direction of the motorcycle two more circular sectors 134 for the LEDs 88 and 90 and for the LEDs 110 . 108 , The circular sectors 134 the top LEDs 88 and 110 are spaced from each other. Between these are the exit surface sections 74 for the LEDs 80 and 82 provided, which are arranged in a row. The exit surfaces 74 the LEDs 78 and 84 are in a further row above the LEDs 80 and 82 intended. In a top row are the exit surface sections 74 the LEDs 76 and 86 intended. Radial outside of the circular sectors 134 the LEDs 88 to 96 and 102 to 110 is in each case a further exit surface section 74 the LEDs 112 to 120 and 124 to 132 educated. In other words, the circular sectors are tangentially divided to exit face portions for two radially arranged approximately in-line LEDs, such as for the LEDs 88 and 112 to provide. Radial of the in 4a lowest circular sectors 134 for the LEDs 98 and 100 is another exit surface section 74 for the LED 122 intended. Thus, radially outward of the approximately in the vertical direction - in a non-skewed position of the vehicle - extending circular sectors 134 the LEDs 98 and 100 a common exit surface section 74 , By, in particular tangential segmentation of, circular sectors 134 for the additional light sources or for the LEDs 88 to 132 may be possible during cornering and / or a straight-ahead driving an adaptive hide other road users. For example, the LEDs 92 and 116 switched on - if this is below the cut-off line 136 are (right turn) -, so can / can if necessary, for example, in an oncoming traffic, the LEDs 92 and or 116 be off or dimmed. For example, if oncoming traffic is almost directly in front of the motorcycle (slightly on the right), then at least the LED will turn on 92 switched off and if necessary the LED 116 , If the oncoming traffic is clearly on the right, then the LED will turn 116 switched off.

It is also possible to distinguish between a driving with high beam (Highbeam (HB)) and low beam (Lowbeam (LB)). With high beam, in particular without traffic, in addition to the LEDs 76 to 86 one or more or all of the LEDs 88 to 132 to be on. In low beam is conceivable alternatively or additionally one or more of the LEDs 88 . 90 . 108 to 114 and 130 . 132 turn. If necessary, for example, to not dazzle oncoming traffic, then / can the appropriate / n LEDs 92 to 106 and 116 to 128 be turned off. For example, in heavy traffic and / or in a city center and / or at slow speeds, the LEDs 76 to 90 . 108 to 114 . 130 . 132 be switched on and the other LEDs are off. In other words, at least some of the LEDs 88 to 132 be used in addition to the use during cornering in addition to the dipped beam and / or high beam and / or a further illumination function and / or be controlled adaptively.

According to 4b is an oblique arrangement of the optics 72 shown. This is, for example, an inclination of the motorcycle in a left turn (view of the primary optics from the front). Here are in addition to the LEDs 76 to 86 . 88 . 112 . 108 . 110 . 130 and 132 the LEDs 106 and 128 hooked up. The LEDs used for the dimming function 90 and 114 On the other hand, they can be switched off in order to hide in particular oncoming traffic. Thus, for example, in oncoming traffic or switched off high beam, the apron remains homogeneous until the cut-off point 136 illuminated and the oncoming traffic is not dazzled. One or more LEDs below the cut-off line 136 can be dimmed down (eg LEDs 92 . 116 ) to prevent the driver from blinding himself with too bright an apron.

Disclosed is an adaptive headlight module for motorcycles. This has several LED light sources, which are followed by a Taper primary optics and a secondary optics, which maps the light distribution into the far field. The arrangement of the LEDs and the design of the Taper primary optics is carried out such that a roadway can be optimally illuminated depending on the gradient of the motorcycle.

LIST OF REFERENCE NUMBERS

optical arrangement 1 circuit board 2 LED 4; 34 to 58; 76 to 132 Optics (primary optics) 6; 32; 72 Optics (secondary optics) 8th optical fiber 10 coupling surface 12 connecting portion 14 exit area 16 Exit surface section 18; 60, 62, 64; 74 line 20 to 30 circular sector 134 motorcycle 66 main emphasis 67 sensor 68 evaluation 70 Light-off 136

Claims (14)

An optical arrangement for a vehicle (66) having a plurality of light sources (4; 34 to 58; 76 to 132), wherein at least a part of the light sources (4; 34 to 58; 76 to 132) is dependent on a banking angle of the vehicle (4; 66) is controllable, characterized in that the light sources (4; 34 to 58, 76 to 132) a common optics (6; 32; 42) is connected downstream, which has a plurality of optical fibers (10), each for at least one 76 and 132) are provided and each having at least one coupling surface (12), wherein the optical fibers (10) on the output side via a common connecting portion (14) of the optical system (6; 32; 72) are connected which has an exit surface (16) facing away from the light guides (10) for the light emerging from the light guides (10). Optical arrangement according to Claim 1 wherein at least a part of the light sources (4; 34-58; 76-132) for an illumination function and at least another part of the light sources (4; 34-58; 76-132) for the oblique position are used. Optical arrangement according to Claim 2 wherein at an inclined position of the vehicle (66) in at least one direction of rotation or in both directions of rotation of the vehicle (66) in addition to at least one at a non-inclination of the vehicle (66) switched light source (34 to 46) for the illumination function at least one more Light source (58) is turned on for the tilt for illuminating a part of a desired light field for the illumination function or is changed in their brightness or is dimmed. Optical arrangement according to Claim 2 or 3 wherein the optical system (6; 32; 72) is designed in such a way that at least one light source (4; 34 to 58; 76 to 132) illuminates at least part of a light field for the oblique position, so that when the vehicle (66) is tilted Light field is at least partially preserved. Optical arrangement according to one of Claims 2 to 4 , Wherein for each respective direction of rotation in each case at least one light source for the inclined position of the vehicle (66) is provided. Optical arrangement according to one of the preceding claims, wherein the optics (6; 32; 72) is followed by a secondary optics (8). Optical arrangement according to one of Claims 2 to 6 wherein a banking angle range of the vehicle (66) in at least one direction of rotation or both directions of rotation of the vehicle (66) in at least two partial angle ranges or in each case in at least two partial angle ranges is divided, wherein a respective partial angle range at least one light source (58) is assigned for the inclined position. An optical arrangement according to any one of the preceding claims, wherein the exit face (16) of the optic (6; 32; 72) has exit face sections (18; 60,62; 74) for one or more light guides (10), respectively is set by the one or more associated light guides (10) passing radiation. Optical arrangement according to Claim 8 wherein the exit surface portion (s) (18; 60,62; 74) for the light source (s) of the illumination function is viewed in the direction of gravity and when the vehicle (66) is not inclined, above the exit surface portion (s) (18; 60,62; ) of the light sources (4, 34 to 58, 76 to 132) for the tilt is / are. Optical arrangement according to Claim 8 or 9 , wherein for each of the light sources (4, 34 to 58, 76 to 132) for the inclined position in each case an exit surface section (64, 134) in the form of a circular sector (64, 134) is provided. Optical arrangement according to Claim 10 , wherein the circular sectors (64; 134) are arranged symmetrically and / or wherein the circular sectors (64; 134) together form a circle or a circular section, and / or wherein the circular sectors (64; 134) together form a semicircle whose circular chord is on a light-dark boundary (136) of the exit surface (16) of the optical system (32) is located. Headlamp with an optical arrangement according to one of the preceding claims. Vehicle with an optical arrangement according to one of Claims 1 to 11 or with a headlight according to Claim 12 , Method with an optical arrangement according to the Claims 1 to 11 wherein at least a portion of the light sources (4; 34-58; 76-132) is controlled.

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