• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    Method for generating a high-beam variable-length light distribution comprising the following steps for providing a cornering light function of a high-beam light distribution: detecting the course of the road, determining a deflection parameter set from the course of the road and the speed of the vehicle, determining a light Parameter set (190) from the course of the road and the speed of the vehicle, - configuring the deflection device with the previously determined deflection parameter set (180) and a high-beam light distribution stored in a control device such that the high-beam light distribution with the deflection parameter set (180 ) is positioned and scaled within a predetermined imaging range of the deflection device, and driving the illumination means with the previously determined illumination parameter set (190) such that the intensity of the projected high beam light distribution is modulated with the illumination parameter set (190).
    公开号:AT519885A4
    申请号:T50545/2017
    申请日:2017-07-03
    公开日:2018-11-15
    发明作者:Reinprecht Markus；Reisinger Bettina；Mitterlehner Thomas
    申请人:Zkw Group Gmbh；
    IPC主号:
    专利说明:

    METHOD FOR GENERATING A VARIABLE BULK LIGHT DISTRIBUTION AND DEVICE
    The invention relates to methods for generating a variable high beam light distribution by at least one headlight of a vehicle, which has a lamp
    Deflection device and a projection optics, and the lamp is set up to emit light in the direction of the deflection device, which deflects the light at least partially in the direction of the projection optics and generates a light image in front of the vehicle, the deflection device being configurable by a control device using a deflection parameter set is.
    Furthermore, the invention relates to a motor vehicle headlight system, comprising at least one headlight that is set up to generate a variable high beam light distribution, and at least one control device.
    The invention also relates to a motor vehicle with a motor vehicle
    Headlight system of the aforementioned type.
    In the development of the current headlight systems, the desire to project a high-resolution light image onto the roadway that can be changed quickly and adapted to the respective traffic, road and light conditions is becoming more and more important. The term "lane" is used here for a simplified representation, because it depends of course on the local conditions whether a photograph is actually on the lane or extends beyond it.
    In principle, the light image in the sense used here corresponds to a projection onto a vertical surface in accordance with the relevant standards that relate to the automotive
    Get lighting technology. Instead of "lane", one often speaks of "traffic space".
    Different headlight systems have been developed in accordance with the need mentioned, in particular with very quickly deflected, modulated ones
    Headlights working with laser beams, the starting point in terms of lighting technology being at least one laser light source which emits a laser beam and which is associated with a laser control which is used for power supply and for monitoring the laser emission or e.g. is used for temperature control and is also set up to modulate the intensity of the emitted laser beam. “Modulation” is understood to mean that the intensity of the laser light source can be changed, be it continuously or in the sense of switching on and off. It is essential that the light output can be dynamically changed analogously, depending on the angular position of a mirror deflecting the laser beam. In addition, there is the option of switching on and off for a certain time so as not to illuminate or hide defined areas. The control of the laser light sources and the micromirrors used for beam deflection is carried out via a computing unit. An example of a dynamic control concept for generating an image by a very quickly deflected laser beam is described, for example, in the applicant's document AT 514633.
    It is an object of the invention to improve the state of the art and to provide a method and a device for generating a variable high beam light distribution and thereby a long-standing need for an optimal lighting by one
    To meet vehicle headlights in special traffic situations. Besides that
    The method and the device can be implemented simply and inexpensively.
    The object is achieved by a method and a device of the type mentioned at the outset by the following steps for generating a cornering light function
    High beam light distribution can be carried out: - Detection of the course of the road by means of a course sensor and the speed of the vehicle by means of a speed sensor, which are comprised by a control device of the vehicle, - Determination of the deflection parameter set from the course of the road and the speed of the vehicle the control device, which is connected to the deflection device, which comprises a deflection center, a deflection width and a deflection speed, - determining a set of lighting parameters from the course of the road and the speed of the vehicle by the control device, which is used to control the illuminant is provided, and a luminous intensity, as well as a predefined light distribution in the form of light distribution data, comprises - configuring the deflection device with the previously determined deflection parameter set and a high beam light distribution stored in the control device such that the distance icht light distribution with the deflection parameter set within a predetermined imaging range
    Deflection device is positioned and scaled, and driving the lamp with the previously determined lighting parameter set such that the intensity of the projected high beam light distribution is modulated with the lighting parameter set.
    This enables a cornering light function to be created for a high beam, a road course located far in front of the vehicle being dynamically recognized and illuminated during the journey. This cornering light function is intended in particular for a motorway cornering light which has a cornering light function in particular for high
    Corresponds to vehicle speeds. In addition, highways and expressways often have smaller curve radii compared to higher-ranking roads that are not highways or expressways. As a result, the detection of the course of the road can be carried out very reliably and the driver of the vehicle can see a significant improvement
    Illumination of the road can be achieved. With the method and the device according to the invention, the visibility for the driver of the vehicle can thus be improved.
    In this context, under "Scaling a light distribution" is the adjustment of the
    Understand the size of the projection of a light image projected onto the road. In other words, the width and / or the height of the light image is adjusted, the intensity distribution of which can be described by the light distribution.
    In this context, the location of the local maximum in a brightness distribution, which is caused by the deflection of a
    Reflector in the form of a changing deflection angle of the deflection device can be understood. The local maximum can also be called geometric
    Center of gravity or centroid of a surface that is formed by an Isolux curve in a graphical representation of a light distribution can be determined. The distraction
    The center is also known as the so-called “light center”.
    The deflection angle is used to denote the respective angle of the deflection device which, after the application of a corresponding electrical control signal, to the
    Deflector adjusts and an incident light beam towards the
    Projection optics of the vehicle reflected. It is clear to the person skilled in the art that the intensity must also be controlled accordingly by the illuminant in order to actually achieve a corresponding light beam for a respective deflection angle.
    In this context, the deflection width of the deflection device is the opening angle of a light beam, which is caused by the deflection of the reflector
    Deflection device can be generated, understood, which arises between two limit values of the deflection. The two limit values, a lower and an upper limit value, can be defined, for example, by those intensities of the light beam whose values correspond, for example, to half the maximum intensity of that in the deflection center.
    In this context, the deflection speed of the deflection device denotes the rotational speed of the reflector of the deflection device. The deflection speed can vary depending on the deflection angle.
    It is advantageous if the course sensor means is set up to detect the course of the road at a distance of at least 50 m, preferably at least 150 m, particularly preferably at least 300 m in front of the vehicle, and which is preferably also set up to detect oncoming traffic data an oncoming traffic sensor means, which preferably contains an optical sensor, in particular a camera, which optical
    Sensor connected to the control device or is included in the control device to record, which describe the oncoming traffic to the vehicle in an adjacent lane and the oncoming traffic data are used in determining the course of the road. It can thereby be achieved that the course of the road is detected by the oncoming traffic sensor means with a high probability of recognition.
    Oncoming traffic sensor means are already used in existing systems, for example to control a glare-free high beam that does not dazzle oncoming traffic. Sensor data from such a system can be processed in the method according to the invention.
    It is advantageous if the control device detects the course of the road
    Light distribution data are determined, which are at least partially the detected
    Describe the course of the road. It can be achieved that a predefined
    Light distribution, for example in the form of a high beam light distribution, is modified or enlarged in such a way that it extends in its lighting area in such a way that both a detected traffic area that is closer to the vehicle and a detected traffic area that is further away, for example in is located on a curve of the detected road course, is also illuminated.
    It is also advantageous if the deflection speed is dependent on one
    Deflection angle of the deflection device is variable, and preferably starting from the
    Deflection center, increases with increasing amount of the deflection angle, and preferably when a limit value for the amount of the deflection angle is exceeded, the limit value corresponding to the amount of a lower limit value or an upper limit value, again becoming smaller, preferably zero. For a deflection angle with the value zero, the frequency for the movement of the reflector is at a first frequency. For a deflection angle, which is defined by half the value of the deflection width, starting from the deflection center, it is provided that the frequency for the movement of the reflector is at a second frequency, the second frequency being greater than the first frequency. For deflection angles that go beyond the value of half the deflection width, it is provided that the frequency for the movement of the reflector decreases again and even becomes zero when the deflection angle increases further. It can thereby be achieved that the brightness of the generated light distribution in the areas that go beyond the deflection width remains homogeneous with the area within the deflection width.
    In a preferred embodiment of the invention it is provided that in the case of a straight course of the road course determined by the control device, and with increasing speed, the deflection width of the deflection device is reduced.
    It can thereby be achieved that the light distribution projected by the headlight is smaller and has a higher intensity at the maximum, as a result of which the illuminating range of the headlight is increased.
    It is advantageous if the predefined light distribution is a high beam light distribution which is stored in the control device. It can thereby be achieved that the
    Headlights are easy to control.
    An object of the invention is further achieved by a vehicle headlight and a
    Motor vehicle solved with a vehicle headlight, which is set up, said
    Execute procedure. This allows a device with a cornering light function for a vehicle headlight to be combined with a high beam light distribution.
    It is favorable if the illuminant of the headlamp comprises at least one light source in the form of an LED, preferably a narrow-band emitting LED or laser diode, the light emission of which is preferably bundled or shaped by primary optics. It is also advantageous if the motor vehicle headlight system is preferably a
    Conversion means, which is located between the deflection device and the projection optics in the beam path of the light deflected by the deflection device in a focal plane of the projection optics, or the conversion means is included in the lighting means, and the conversion means is set up to deflect the deflected light from a non-visible spectral range in a visible spectral range, for example in white
    Light to convert. This enables an inexpensive realization of a headlight according to the invention to be achieved.
    The at least one light source can thus also comprise a conversion means which is applied directly to the at least one light source and is set up to convert a light emission generated with a light spectrum in the non-visible spectral range into a visible spectral range, for example into white light.
    It is advantageous if the deflection device is set up in the installed state to carry out a horizontally oriented deflection of an incident light beam which is emitted by the illuminant and is directed onto the deflection device, the intensity of the illuminant being reduced, preferably to zero when a Amount of a limit value for the deflection angle is exceeded. It can thereby be achieved that the light distribution generated appears particularly homogeneous at the limits of the deflection width.
    In a favorable further development of the invention is in the case of one by
    Control device in a certain road course detected curve configured the deflection center of the deflection device in the installed state in a vehicle next to, preferably horizontally next to the longitudinal axis of the vehicle. It can thereby be achieved that the vehicle headlight generates a homogeneous cornering light distribution when installed in a vehicle.
    It is advantageous if the luminous intensity of the illuminant is determined by a pulse width
    Modulation is controlled. This allows the intensity to be controlled precisely and easily in a digital form.
    It is particularly favorable if the deflection device comprises a controllable reflector in the form of a micro-electro-mechanical system. This can be an inexpensive
    Realization of a headlight according to the invention can be achieved.
    Furthermore, it is advantageous if the course sensor means and / or the speed
    Sensor means comprises at least one optical sensor, preferably at least one camera, and / or a satellite-based navigation system, or accesses data from such a navigation system, which are provided by a navigation system of the vehicle, for example via a vehicle bus, such as a CAN bus. This enables an inexpensive realization of a headlight according to the invention to be achieved.
    It is also beneficial if the gradient sensor means and the speed
    Use sensor means at least one common sensor. A simple and inexpensive realization of a headlight according to the invention can thereby be achieved.
    A further embodiment of the invention provides a motor vehicle headlight system of the type mentioned at the outset, the motor vehicle headlight system further comprising a course sensor means and a speed sensor means, and the at least one control device being configured to carry out the method according to the invention.
    A particularly advantageous further development is achieved if the invention
    Vehicle headlights is an auxiliary high beam headlight. It can thereby be achieved that the high beam light distribution of the main high beam headlight with the variable
    High beam light distribution of the additional headlights is superimposed and a particularly favorable overall light distribution is achieved.
    As an alternative to this, a variable high beam light distribution according to the invention can be generated in the form of a main high beam light distribution, that is to say that no additional high beam light is used.
    In the context of the present invention, the term “headlight” is not only to be understood as a complete vehicle headlight, but also one
    Lighting unit which, for example, can form part of a headlight together with other lighting units.
    The invention is explained in more detail below by way of example with reference to the drawings. In these show:
    1 is a vehicle with headlights according to the invention in a view from above,
    2 shows a block diagram of a device for executing a method according to the invention,
    3 shows a vehicle headlight, as is also known from the prior art, with three light sources and a deflecting element which can be pivoted about an axis,
    3a shows a conversion means of a vehicle headlight according to FIG. 3,
    Fig. 4 shows a vehicle headlight, as known from the prior art, with three
    Light sources and a deflection element that can be pivoted about two axes,
    4a a conversion means of a vehicle headlight according to FIG. 4,
    5 shows an embodiment of the method according to the invention,
    5a examples of a deflection parameter set, a lighting parameter set,
    6 shows a typical high beam light distribution,
    7 is a high beam light distribution for driving straight ahead,
    8 shows a representation of scaling areas for a high beam light distribution for straight-ahead driving,
    9 a light distribution deflected to the right according to FIG. 7,
    10 shows a light distribution according to FIG. 7 deflected to the left,
    11 shows a representation of positioning and scaling areas for a high beam light distribution for a road course running to the left,
    12 is a horizontal section through the light distribution of FIG. 6,
    13 is a horizontal section through the light distribution of FIG. 7,
    14 is a horizontal section through the light distribution of FIG. 9,
    15 shows the deflection speed as a function of the deflection
    Winkles for a straight line,
    16 shows the deflection speed as a function of the deflection
    Winkles for a left turn,
    17 shows the deflection speed as a function of the deflection
    Winkles for a right turn.
    Exemplary embodiments of the invention will now be explained in more detail with reference to FIGS. 1 to 17. In particular, parts which are important for the invention are shown in a headlight, it being clear that a headlight also contains many other parts, not shown, which enable sensible use in a motor vehicle, such as in particular a car or motorcycle. For the sake of clarity, cooling devices for components, control electronics, further optical elements, mechanical adjustment devices or brackets are not shown, for example.
    With regard to the required light output or the desired light pattern, several light sources are usually required, the systems used for this purpose being explained briefly below with reference to FIGS. 3 to 4a.
    1 shows a vehicle 100 with headlights 102, 103 according to the invention, and
    Headlights 112, 113 in a view from above. A longitudinal axis 101 of the
    Vehicle 100 can also be seen. The main headlights 112, 113 are set up to provide basic light distributions e.g. to produce in the form of a legally compliant low beam or high beam. The vehicle headlights 102, 103 are in this
    Example designed as additional high beam headlights.
    It is clear that the main headlight and the auxiliary headlight according to this
    Embodiment need not always be structurally separate, but can be implemented in a common headlight housing in the form of respective light modules. The common headlight can be, for example, a high beam
    Light module with a main light function according to the headlight 112, 113 des
    Embodiment include, which is described in more detail below, and which generates a basic light distribution. In addition, the common headlight can be an additional light module with an additional high beam light function according to
    Vehicle headlights 102, 103 of the embodiment include, which is also described in more detail below.
    The direction of light of the headlights 102, 103 can, starting from a non-pivoted basic position, be in the direction of radiation 104, 105 of the headlights
    Luminous device 102, 103 is oriented parallel to the longitudinal axis 101, in each case by one
    Adjust deflection angle 184, 185. The deflection can take place in the installed position of the headlights 102, 103 in the vehicle 100 in a horizontal direction on both sides, starting from the basic position. Different or even the same deflection angles 184, 185 can be set for the two headlights 102, 103 in order, for example, to intensify a selected light function in terms of the light intensity or to enlarge a common light width.
    2 is a block diagram of a device in the form of a motor vehicle
    Headlight system 110 shown for performing the method according to the invention. A
    Deflection device 130, which is configurable via a deflection parameter set 180, and a lamp 120, which is configurable via a lighting parameter set 190, are connected to a control device 170, which also has a profile
    Sensor means 150, an oncoming traffic sensor means 151 and a speed
    Sensor means 160 are connected. The control device 170 comprises a processor 171 and a memory 172, and is configured to carry out the method according to the invention. A predefined high beam light distribution 300 is stored in the memory 172. The course sensor means 150, the oncoming traffic sensor means 151 and the speed sensor means 160 are formed from a shared camera sensor 152 and in each case a sensor evaluation program that is executed on the processor 171.
    A motor vehicle 100 may include the device of FIG. 2.
    From the lighting devices according to the invention, or headlights 102, 103 of the
    Vehicle 100 of FIG. 1 and the device of FIG. 2 can be a motor vehicle
    Form headlight system 110 that for generating a cornering light function
    High beam light distribution is set up. Different operating modes for the
    Motor vehicle headlight system 110 may be provided. For one thing, the two can
    Headlights 102, 103 are driven equally. Alternatively, it can also be provided that a left headlight 102 and a right headlight 103 of the vehicle 100 provide different high beam functions. For example, the left one
    Headlights realize the variable light function described above, and the right one
    Projectors project a static high beam light distribution according to the prior art, whereby a variable, common light image can be generated.
    3 shows a vehicle headlight 102, in which laser beams from lamps 120 are deflected via a deflection device 130, at least one laser diode, three laser diodes 121, 122, 123 being shown, being necessary for operation. In the embodiment shown as an example, a deflection device 130, which can be designed, for example, as a micro deflection unit with a micro mirror, deflects the laser beams of the at least one light source 121, 122, 123 in one direction. For example, as indicated by arrows in FIG. 3 a, in the horizontal direction, the area on a conversion element 141 being shown schematically, via which the laser beam or beams deflected very quickly write a luminous image, which is projected in the direction of the radiation direction 104 via projection optics 140 then projected onto the street as a luminous image. The
    Beam direction 104 can be defined by a zero position 131, in which the deflection mirror is not adjusted.
    In other words, the headlight 102, 103 includes the vehicle 100
    Illuminant 120, a deflection device 130 and projection optics 140
    Illuminant 120 is set up to emit light in the direction of the deflection device 130, which deflects the light at least partially in the direction of the projection optics 140 and generates a light image in front of the vehicle 100, the deflection device 130 being by a
    Control device 170 is configurable by means of a deflection parameter set 180.
    Analogously to this, FIGS. 4 and 4a show a vehicle headlight 202 of the motor vehicle
    Headlight system 110 with a deflection device 230, which can deflect a light beam in two mutually orthogonal directions. In contrast to
    3, the laser beams through illuminant 220 in the form of three
    Laser diodes 221, 222, 223 with the aid of primary optics 225 to form a beam
    Cross section focused and by the deflector 230 on the
    Conversion element 241 periodically deflected around two axes. 4a is a Lissajous
    Figure shown, for example, as a result of such a distraction in two
    Directions. The vehicle headlight 202 also has projection optics 240.
    The radiation direction 204 can be defined by a zero position 231 in which the
    Deflecting mirror is not adjusted.
    The vehicle headlight 202 shown can be used analogously to FIG. 1 for a vehicle 100 and the headlights 102, 103 shown.
    The vehicle headlights 102 and 202 shown are a representative example that
    The starting point of the invention may be, but this invention is not limited to
    Use of such a vehicle headlight is restricted.
    The figures show only the essential components of the systems, which basis of the
    Can be invention. It should be clear that a motor vehicle lighting device, in particular a headlight, requires many other elements for proper operation, for example coolant or optical elements, which for example that
    Affect laser light in the intensity distribution and / or cross-sectional shape, or
    Adjustment devices and brackets, which are not shown for the sake of clarity.
    The projection optics 140, 240 can comprise refractive and / or diffractive optic elements and / or reflector elements for shaping the light distribution.
    3 and 3a also apply.
    FIG. 5 shows an embodiment of the method according to the invention, which is provided for execution with a headlight 102, 103 or 202 of FIGS. 1 to 4, and the figures are to be understood together.
    The following steps are for generating a cornering light function of a high beam
    Light distribution provided: detection of the course of the road by a course sensor means 150 and the speed of the vehicle 100 by a speed sensor means 160, which are comprised by a control device 170 of the vehicle 100, determination of the deflection parameter set 180 from the course of the road and the like
    Speed of the vehicle 100 by the control device 170, which with the
    Deflection device 130 is connected, which comprises a deflection center 181, 281, 381, a deflection width 182, 282, 382 and a deflection speed 183, - determining a lighting parameter set 190 from the course of the road and the like
    Speed of the vehicle 100 by the control device 170, which for
    Control of the illuminant 120 is provided and comprises a luminous intensity 191 and a predefined high beam light distribution 300 in the form of light distribution data 192, - Configuring the deflection device 130 with the previously determined deflection
    Parameter set 180 and a high beam stored in the control device 170
    Light distribution 300 such that the high beam light distribution 300 with the deflection
    Parameter set 180 within a predetermined imaging range of the
    Deflection device 130 is positioned and scaled, and control of the lighting means 120 with the previously determined lighting parameter set 190 such that the intensity of the projected high beam light distribution is modulated with the lighting parameter set 190.
    In this context, a given imaging range is understood to mean the range of the deflection angle within which an optimal operation of the
    Deflection device can be guaranteed. The deflection device can provide a deflection angle that goes beyond this imaging range, but this angle is often included
    Limitations related to linearity, thermal or mechanical stress.
    5a shows examples of a deflection parameter set 180 and a lighting parameter set 190.
    A summary of FIGS. 1 to 5a shows further embodiments of the
    Invention can be seen, which are described below.
    The course sensor means 150 is set up to detect the course of the road at a distance of at least 50 m, preferably at least 150 m, particularly preferably at least 300 m in front of the vehicle 100. The course sensor means 150 is also set up
    Oncoming traffic data to be recorded by an oncoming traffic sensor means 151, which preferably contains an optical sensor, in particular a camera 152, which optical sensor is connected to the control device 170 or is comprised by the control device 170. Alternatively or additionally, the course of the road can also be determined by navigation data from a satellite-based navigation system. For this purpose, the history sensor means 150 and / or the oncoming traffic sensor means 151 can comprise a navigation system or use navigation data of a navigation system of the vehicle, which are provided for example via a vehicle bus, such as a CAN bus. The oncoming traffic data describe the traffic coming to the vehicle 100 in an adjacent lane. The oncoming traffic data can with the
    Determination of the course of the road optional, that is, to be used in addition.
    The course of the road and the oncoming traffic data can take place by means of image analysis algorithms in the form of a computer program, which evaluate a camera image of the camera 152 and are executed by the processor 171. The computer program can in
    Memory 172 may be stored.
    From the detected road course, the control device 170 can use the detected road course to determine light distribution data 192, which at least partially describe the recorded road course.
    The predefined high beam light distribution 300 is a high beam light distribution that is used in the
    Control device 170 is stored.
    In one embodiment of the invention, the motor vehicle headlight system 110 is set up with at least one vehicle headlight 102, 103, 202 to carry out the method according to the invention. A vehicle 100 may include the automotive headlamp system 110.
    The illuminant 120 or 220 comprises at least one light source 121, 122, 123 or 221, 222, 223 in the form of an LED or laser diode, the light emission of which is preferably bundled or shaped by primary optics (225).
    In an arrangement according to FIG. 4, the light emission of the lighting means 220 is controlled by a
    Primary optics 225 bundled or shaped.
    The motor vehicle headlight system 110 of FIGS. 1 to 4 also includes a
    Conversion means 141, 241, which between the deflection device 130, 230 and the
    Projection optics 140, 240 is located in the beam path of the light deflected by the deflection device 130, 230 in a focal plane of the projection optics 140, 240. The
    Conversion means 141, 241 is set up to convert the deflected light into, for example, white light if the light emitted by the light source 121, 122, 123 or 221, 222, 223 is in a non-visible region of the light spectrum, for example in the ultraviolet region , is located.
    In a state installed in a vehicle 100, the deflection device 130 is configured to perform a horizontally oriented deflection of an incident light beam which is emitted by the illuminant 120 and is directed onto the deflection device 130. The intensity of the illuminant 120 is reduced, even to zero, if an amount of a limit value 301, 302 for the deflection angle 184, 185 is exceeded.
    In the case of a curve detected by the control device 170 in a specific course of the road, the deflection center 181 of the deflection device 130, 230 is configured in the installed state in a vehicle 100 next to, preferably horizontally next to the longitudinal axis 101 of the vehicle 100.
    The luminous intensity 191 of the illuminant 120 is controlled by pulse width modulation.
    The deflection device 130, 230 comprises a controllable reflector in the form of a micro
    Electro-Mechanical Systems (MEMS).
    The history sensor means 150, the oncoming traffic sensor means 151 and the
    In one embodiment variant, speed sensor means 160 jointly use the same optical sensor in the form of a camera 152, which is connected to the control device 170 or is comprised by the latter.
    6 shows a typical high beam light distribution positioned on a flat measuring screen, for example 25 meters in front of the vehicle. The axes are oriented horizontally and vertically and have an angle scale.
    FIG. 7 shows the light distribution from FIG. 6, which is scaled in the projected size.
    This can be used to better illuminate a distant straight road as the speed increases. In other words, depending on the speed of the vehicle, the deflection width of the
    Deflection device 130, 230 can be reduced with increasing speed.
    FIG. 8 shows two areas, for example that of FIG. 6 and about that of FIG. 7, from which it should be evident between which areas the high beam light distribution can be scaled in a projection into the traffic area in front of the vehicle when driving straight ahead .
    FIG. 9 shows the scaled light distribution from FIG. 7, which is for a detected right curve of the
    Road is deflected to the right.
    10 shows, analogously to this, a scaled light distribution according to FIG. 7 deflected to the left.
    FIG. 11 again shows two areas, for example that of FIG. 6 and about that of FIG. 10, from which it should be evident between which areas the high beam light distribution is scaled and pivoted in a projection in front of the vehicle with one behind left course of the road can take place.
    12 shows a profile of a luminous intensity 191 as a horizontal section through the
    6 with a large deflection width 182 of the light distribution. On the
    The abscissa is the deflection angle 184, 185 and the ordinate is the luminous intensity 191. The deflection center 181 of the deflection device 130, 230 is for one
    Straight travel of the vehicle 100 at the origin of the coordinate system.
    13 shows a profile of a luminous intensity 191 as a horizontal section through the
    7 with a small deflection width 282 of the light distribution, with the smaller deflection width 282 in relation to the deflection width 182 of FIG
    Deflection device 130, 230 can be configured, for example, by a detected higher speed of vehicle 100. The deflection center 281 lies in the origin of the coordinate system for a straight travel of the vehicle 100.
    14 shows a course of a luminous intensity 191 as a horizontal section through the
    9 with a small deflection width 382 analogous to the deflection width 282 of FIG. 13 of the light distribution according to FIG. 7, the deflection center 381 of the light distribution being deflected or shifted to the right for a right curve.
    15 shows the deflection speed 183 of the deflection device 130, 230 in
    Dependency of the deflection angle 184, 185 for driving straight ahead.
    It can be seen that the deflection speed 183 is dependent on the deflection
    Angle 184, 185 of the deflection device 130 varies. Starting from the deflection center 181, the deflection speed 183 increases with an increasing amount of the deflection angle 184, 185. If a lower limit value 301 or an upper limit value 302 for the deflection angle 184, 185 is exceeded or undershot, the
    Deflection speed 183 again lower, or to zero. With others
    Words may exceed a limit for the amount of deflection angle 184, 185, the limit being the amount of a lower limit 301 or an upper limit
    Limit value 302 corresponds, the deflection speed 183 is again lower, preferably to
    Zero, be.
    The lower limit value 301 and the upper limit value 302 for the deflection angle 184, 185 can be seen in the figure, which describes the maximum pivoting range for optimal operation of the deflection device 130, 230. The deflection center 181 can also be seen, which describes the so-called “light center” of the light distribution.
    16 shows the deflection speed 183 as a function of the deflection angle 184, 185 for a left curve, for which the deflection center 281 is correspondingly shifted to the left.
    17 shows the deflection speed 183 as a function of the deflection angle 184, 185 for a right-hand curve, for which the deflection center 381 is correspondingly shifted to the right.
    100 vehicle 101 longitudinal axis 102, 103, 202 headlights 104, 105, 204 headlight axis 110 motor vehicle headlight system 112, 113 main headlights 114, 115 main headlight axis 120, 220 lamps 121, 122, 123, 221, 222, 223 light source 225 primary optics 130, 230 deflection device 131, 231 zero position 140, 240 projection optics 141, 241 conversion means 150 course sensor means 151 oncoming traffic sensor means 152 camera sensor 160 speed sensor means 170 control device 171 processor 172 memory 180 deflection parameter set 181, 281, 381 deflection center 182, 282, 382 deflection width 183 deflection speed 184, 185 deflection angle 190 light parameter set 191 light intensity 192 light distribution data 300 predefined high beam light distribution 301, 302 limit value for deflection angle
    权利要求:
    Claims (16)
    [1]
    PATENT CLAIMS
    1. A method for generating a variable high beam light distribution by means of at least one headlight (102, 103, 202) of a vehicle (100), which has a lamp (120, 220), a deflection device (130, 230) and a projection lens (140, 240 ), and the lighting means (120, 220) is set up to emit light in the direction of the deflection device (130, 230), which deflects the light at least partially in the direction of the projection optics (140, 240) for projection in front of the vehicle (100) and generates a light image in front of the vehicle (100), the deflection device (130, 230) being configurable by a control device (170) by means of a deflection parameter set (180), characterized by the following steps for generating a cornering light function of a high beam light distribution : - Detection of the course of the road by means of a course sensor (150) and the speed of the vehicle (100) by means of a speed sensor (160), which the control device (1 70) of the vehicle (100), - determining the deflection parameter set (180) from the course of the road and the speed of the vehicle (100) by the control device (170), which has a deflection center (181, 281, 381), a deflection width (182, 282, 382) and a deflection speed (183), - determining a lighting parameter set (190) from the course of the road and the speed of the vehicle (100) by the control device (170), which is used for actuation the illuminant (120, 220) is provided and comprises a luminous intensity (191) and a predefined high beam light distribution (300) in the form of light distribution data (192), - configuring the deflection device (130, 230) with the previously determined one Deflection parameter set (180) and a high beam light distribution (300) stored in the control device (170) such that the high beam light distribution (300) with the deflection parameter set (180) within a predetermined imaging range of the deflections k Device (130, 230) is positioned and scaled, and driving the illuminant (120, 220) with the previously determined lighting parameter set (190) such that the intensity of the projected high beam light distribution is modulated with the lighting parameter set (190) .
    [2]
    2. The method according to claim 1, characterized in that the course sensor means (150) is set up to detect the course of the road at a distance of at least 50 m, preferably at least 150 m, particularly preferably at least 300 m in front of the vehicle (100), and which is preferably set up, oncoming traffic data by oncoming traffic sensor means (151), which is preferably an optical sensor, in particular a camera (152), and / or a satellite-based navigation system or on data from such a system, for example from a navigation system of the vehicle via a vehicle bus, such as a CAN bus, which is connected to the control device (170) or is comprised by the control device (170), which describe the oncoming traffic of the vehicle (100) in an adjacent lane and the oncoming traffic data are used in determining the course of the road.
    [3]
    3. The method according to claim 1 or 2, characterized in that the control device (170) from the detected road course light distribution data (192) are determined, which at least partially describe the detected road course.
    [4]
    4. The method according to any one of the preceding claims, characterized in that the deflection speed (183) is variable as a function of a deflection angle (184, 185) of the deflection device (130, 230) and preferably starting from the deflection center (181 , 281, 381) increases with increasing amount of the deflection angle (184, 185) and preferably when the limit value for the amount of the deflection angle (184, 185) is exceeded, the limit value being the amount of a lower limit value (301) or a corresponds to the upper limit (302), again lower, preferably zero.
    [5]
    5. The method according to any one of the preceding claims, characterized in that in the case of a straight course of the road course determined by the control device (170), and with increasing speed, the deflection width (182, 282, 382) of the deflection device (130, 230 ) is reduced.
    [6]
    6. The method according to any one of the preceding claims, characterized in that the predefined light distribution (300) is a high beam light distribution, which is stored in the control device (170).
    [7]
    7. Motor vehicle headlight system (110), comprising at least one headlight (102, 103, 202), which is set up to generate a variable high beam light distribution, and at least one control device (170), characterized in that the motor vehicle headlight system (110 ) comprises a course sensor means (150) and a speed sensor means (160), and the at least one control device (170) is configured to carry out the method according to one of the preceding claims.
    [8]
    8. Motor vehicle headlight system (110) according to one of the preceding claims, characterized in that the illuminant (120, 220) of the headlight (102, 103, 202) at least one light source (121, 122, 123, 221, 222, 223) in the form of an LED, preferably a narrow-band emitting LED or laser diode, the light emission of which is preferably bundled or shaped by primary optics (225), and the motor vehicle headlight system (110) preferably comprises a conversion means (141, 241) which between the deflection device (130, 230) and the projection optics (140, 240) is located in the beam path of the light deflected by the deflection device (130, 230) in a focal plane of the projection optics (140, 240), or the conversion means from the illuminant (120, 220) is included, and the conversion means (141, 241) is set up to convert the deflected light into, for example, white light.
    [9]
    9. Motor vehicle headlight system (110) according to claim 7 or 8, characterized in that the deflection device (130, 230) of the headlight (102, 103, 202) is installed in the installed state, a horizontally oriented deflection of an incident light beam, which by the illuminant (120, 220) is emitted and directed towards the deflection device (130, 230), the intensity of the illuminant (120, 220) being reduced, preferably to zero, if an amount of a limit value (301, 302) for the deflection angle (184, 185) is exceeded.
    [10]
    10. Motor vehicle headlight system (110) according to one of claims 7 to 9, characterized in that in the case of a curve detected by the control device (170) in a certain road course, the deflection center (181, 281, 381) of the deflection device (130 , 230) is configured in the installed state in a vehicle (100) next to, preferably horizontally next to the longitudinal axis (101) of the vehicle (100).
    [11]
    11. Motor vehicle headlight system (110) according to one of claims 7 to 10, characterized in that the luminous intensity (191) of the illuminant (120, 220) of the headlight (102, 103, 202) by a pulse width modulation is controlled.
    [12]
    12. Motor vehicle headlight system (110) according to one of claims 7 to 11, characterized in that the deflection device (130, 230) comprises a controllable reflector in the form of a micro-electro-mechanical system.
    [13]
    13. Motor vehicle headlight system (110) according to one of claims 7 to 12, characterized in that the course sensor means (150) and / or the speed sensor means (160) comprises at least one optical sensor, preferably at least one camera (152).
    [14]
    14. Motor vehicle headlamp system (110) according to one of claims 7 to 13, characterized in that the course sensor means (150) and the speed sensor means (160) use at least one common sensor.
    [15]
    15. Motor vehicle headlight system (110) according to one of claims 7 to 14, characterized in that the headlight (102, 103, 202) is an additional high beam headlight.
    [16]
    16. Motor vehicle with a motor vehicle headlight system (110) according to one of claims 7 to 15.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50545/2017A|AT519885B1|2017-07-03|2017-07-03|METHOD FOR GENERATING A VARIABLE DISTANCE LIGHT DISTRIBUTION AND DEVICE|ATA50545/2017A| AT519885B1|2017-07-03|2017-07-03|METHOD FOR GENERATING A VARIABLE DISTANCE LIGHT DISTRIBUTION AND DEVICE|
    PCT/AT2018/060076| WO2019006481A1|2017-07-03|2018-04-24|Method for generating a variable high beam light distribution and device|
    EP18723664.1A| EP3649013A1|2017-07-03|2018-04-24|Method for generating a variable high beam light distribution and device|
    KR1020197016284A| KR102213770B1|2017-07-03|2018-04-24|Method and apparatus for generating variable high beam light distribution|
    CN201880011088.3A| CN110248843A|2017-07-03|2018-04-24|Method and apparatus for generating variable upper beam distribution|
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