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    • 专利摘要:
    A vehicle headlamp (1) adapted to form a light image in front of a vehicle, comprising a first microprocessor (100), a first memory (110), a control channel control unit (120) and a first light module (211, 212) each having one first output unit (221, 222), and a second light module (213, 214) each having a second output unit (223, 224), the vehicle headlamp (1) further comprising an object channel control unit (130), a second microprocessor (101) and a second memory (90), and the object channel control unit (130) is adapted to receive from a second electronic system (61) of the vehicle a message via an object channel (131) and the second microprocessor (101) is arranged from the object channel control unit (130) at least partially retrieve the message and form image data therefrom, and the second microprocessor (101) is further arranged, the output unit via a video channel (250) it (223, 224) of the second light module (213, 214), wherein the output unit (223, 224) of the second light module (213, 214) is set up, from the control data and from the image data of the second light module (213, 214) to generate common data describing a light distribution of a vehicle headlight.
    公开号:AT519864A4
    申请号:T50668/2017
    申请日:2017-08-10
    公开日:2018-11-15
    发明作者:Lahmer Martin
    申请人:Zkw Group Gmbh；
    IPC主号:
    专利说明:

    VEHICLE HEADLIGHTS AND VEHICLE CONTROL
    The invention relates to a vehicle headlight which is set up to form a light image in front of a vehicle, comprising a first microprocessor, a first memory, a control channel control unit and at least one first light module, each with a first output unit, and at least one second light module, each with a second
    Output unit, wherein the first microprocessor with the first memory and the
    Control channel control unit is connected, and the control channel control unit communicates with the respective output unit of the at least one first and second light module for data exchange, and the control channel control unit is set up by a first electronic
    System of the vehicle to receive at least one control message via a control channel and at least partially forward it to the first microprocessor, which forms control data by sharing the at least one control message and controls at least one operating mode of the vehicle headlight with the control data, and the first microprocessor is set up to transmit first light data which in the first
    Memory are stored, can be called up and edited and transmitted to the respective output unit of the at least one first and second light module, the first and second output unit each being set up to control an optoelectronic component connected to the respective output unit by means of the first light data, and at least a first light module is set up to modulate at least partially the light emitted by a first light source in the direction of at least one first projection optics by means of a modulator and to project a first light image in front of the vehicle, and the at least one second light module is at least a second light source, an optoelectronic component , in which several controllable optical elements, which are controlled electronically by the associated output unit, are arranged and comprise at least one second projection optics and at least one second light module is set up by the second light source to direct emitted light to the optical elements of the optoelectronic component, and to modulate at least partially by the optical elements in the direction of the at least one second projection optics and to project a second light image in front of the vehicle.
    The invention further relates to a vehicle control.
    In the development of the current headlight systems, the focus is increasingly on the desire to be able to project a high-resolution light image onto the road that can be changed quickly and adapted to the respective traffic, road and light conditions. 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 is based on a projection onto a vertical surface in accordance with the relevant standards that relate to the automotive
    Obtain lighting technology, defined. Furthermore, the generated light image should be adaptable to different traffic situations.
    Among other things, headlights were developed in which a variably controllable
    Reflector surface is formed from a plurality of micromirrors and selected
    Areas of light emission generated by a light source unit in
    Headlight beam direction reflected. Such lighting devices are in
    Vehicle construction is advantageous because of its very flexible light functions, since the illuminance can be individually regulated for different lighting areas and any light functions can be implemented with different light distributions, such as a low beam light distribution, a cornering light light distribution, a city light light distribution, a motorway light distribution, a cornering light
    Light distribution, high beam light distribution, additional high beam light distribution or for the formation of glare-free high beam (also known as Adaptive Driving Beam Headlighting System, ADB). So-called digital light processing (DLP®) is used for the micromirror arrangement
    Projection technology for use in which images are generated by modulating a digital image onto a light beam. It is represented by a rectangular
    Arrangement of movable micromirrors, also referred to as pixels, the light beam in
    Sub-areas are broken down and then reflected pixel by pixel either into the projection path or out of the projection path. The basis for this technology is an electronic component that contains an array of micromirrors in the form of a matrix
    Mirror and their control technology contains and as "Digital Micromirror
    Device ”(DMD) is called. A DMD microsystem is an area light modulator (Spatial Light Modulator, SLM) that consists of a matrix
    Micromirror actuators, that is tiltable reflecting surfaces, for example with an edge length of about 16 p.m or less. The mirror surfaces are designed in such a way that they can be moved by the action of electrostatic fields. Each micromirror can be individually adjusted in its tilt angle and usually has two stable end states, between which it is possible to switch up to 5000 times within a second. The individual micromirrors can each be controlled, for example, by pulse width modulation (PWM) in order to image further states of the micromirrors in the main beam direction of the DMD arrangement, the reflectivity of which is averaged over time between the two stable states of the DMD. The number of mirrors corresponds to the resolution of the projected image, whereby a mirror can represent one or more pixels. DMD chips with high resolutions in the megapixel range are now available. The technology underlying the adjustable individual mirrors is the micro-electro-mechanical systems (MEMS) technology. While the DMD technology has two stable mirror states and the reflection factor can be set by modulation between the two stable states, the "Analog Micromirror Device" (AMD) technology has the property that the individual mirrors can be set in variable mirror positions, which are each in a stable state there.
    In the case of high-resolution vehicle headlights, it may be necessary for complex and detailed light distributions, which are projected, for example, by a DMD system, to be calculated and / or stored within the electronics of the headlight.
    This often requires a high-performance microelectronic assembly which, as a complex system, requires increased power consumption and an expensive cooling device, which requires a large installation space and furthermore leads to high weight, high development, assembly and maintenance costs and thereby complicates the integration into a vehicle .
    It is an object of the invention to overcome the disadvantages mentioned.
    The object is achieved by a vehicle headlight of the type mentioned at the outset, the vehicle headlight further comprising an object channel control unit, a second one
    Microprocessor and a second memory, wherein the second microprocessor is connected to the object channel control unit and the second memory for data exchange, and the object channel control unit is configured to receive at least one message from a second electronic system of the vehicle via an object channel and the the second microprocessor is set up to at least partially retrieve the at least one message from the object channel control unit and to form image data therefrom, and the second microprocessor is also set up to control the respective output unit of the at least one second light module via a video channel, the output unit of the at least one second light module is set up to generate common data from the control data and from the image data of the at least one second light module, which describe a light distribution of a vehicle headlight.
    For better understanding and readability of the description and the claims, no distinction is made between the distinction between a feature in the singular and plural. Nevertheless, the characteristics are meant in the singular and characteristic, or any combination thereof.
    The features mentioned can be used to calculate a detailed description of a light distribution for a vehicle headlight in a computing unit that is not located in the headlight. This computing unit is preferably also used jointly by other vehicle systems for calculation tasks. The
    The volume of data that results from the description of the calculated light distribution is often too large to be rapidly transmitted via the control channel
    Vehicle system can be transferred. Real-time control channel requirements
    Messages can make the control channel unsuitable for transmitting such large amounts of data. The object channel according to the invention provides an additional transmission channel between an electronic system of the vehicle and the
    Vehicle headlight created, which has a large transmission bandwidth for messages, which can also be configured for real-time transmission, for example, by using a real-time protocol in the transmission channel of the object channel.
    It is advantageous if the first electronic vehicle system is an on-board power supply control unit and / or the second electronic vehicle system is a central driver assistance system, since numerous sensors and control devices are included in these systems, which
    Can generate data that can in turn be used by the headlight according to the invention. This allows the headlamp to be less complex and that
    Weight, the size, the development and manufacturing costs can be lower.
    Furthermore, it is advantageous if the at least one first light module and / or the at least one second light module are a controllable, matrix-shaped arrangement of light-emitting diodes or micromirrors, the at least one second light module having a higher image resolution than the at least one first light module. As a result, a vehicle headlight can be created which combines at least two controllable light distributions, each with a different image resolution, in a particularly advantageous manner to form a headlight.
    In addition, it is advantageous if the first and / or second light data are stored in the first and / or second memory, which include at least one light function with a predefined light distribution of the vehicle headlight and / or predefined graphic symbols, and preferably the first and / or second Light data from the first and / or second electronic vehicle system were partially received. It can thereby be achieved that basic light distributions of the vehicle headlight, such as, for example, a low-beam or a high-beam light distribution, are already present in the
    Production of the headlight, for example in the form of a light matrix, the values of which are one
    Represent light distribution and the number of light matrix elements corresponds to the number of controllable optical elements of the optoelectronic component, such as a DMD, this light matrix is programmed into the headlight and does not have to be calculated. However, it can also be provided that the light distribution takes place only through an analytical description of a course of a light distribution, for example through a polynomial, and only the parameters of the polynomial are stored in the memory in order to save memory.
    In this case, a light matrix can be calculated from the polynomial by the microprocessor and output to the DMD via the output unit.
    In a further development of the invention it can be provided that the message is preferably transmitted using the TCP (“Transmission Control Protocol”) or the UDP (“User Datagram Protocol”) technology via the object channel, which is a branch of an Ethernet Network, a branch of a real-time Ethernet network, preferably according to the Precision Time Protocol, or a MOST bus ("Media Oriented Systems Transport"). It can thereby be achieved that the object channel can be implemented in a particularly simple manner and favorable transmission properties can be achieved in the process.
    It is advantageous if the control channel is a CAN bus ("Controller Area Network")
    Vehicle. It can be achieved that the control of the light functions or
    Operating modes of the headlamp are carried out by a standardized method and no individual adaptation of the control to the invention is required.
    It is particularly convenient if the message has at least one destination address, at least one
    Object identification and at least one object description includes and the
    Object channel control unit comprises at least one receive identifier, which corresponds to the destination address and is preferably an IP address (“Internet Protocol”). A particularly simple implementation can thereby be achieved.
    In addition, it is particularly advantageous if the microprocessor is set up to use the object description to form at least one light matrix which represents a light distribution of a vehicle headlight. This can be a particularly simple
    Realization of the invention can be achieved.
    It is advantageous if the object description itself comprises a light matrix. This also makes it possible to achieve a particularly simple implementation of the invention in that the microprocessor requires only little or no processing or calculations, for example by converting models to describe light distributions.
    A preferred development of the invention is formed by a vehicle control system, comprising at least one vehicle headlight according to the invention, the first and second electronic systems dynamically determining a light distribution which is transmitted in the form of a message to the vehicle headlight via the object channel. It can thereby be achieved that the light distribution is formed by the electronic system, which, for example, also functions as a common unit for other vehicle systems, such as
    Navigation system, is executed.
    It is also advantageous if the first and second electronic systems have at least one
    Includes sensor that is set up to record sensor data and at least one of them
    Light distribution determined. It can thereby be achieved that the light distribution can be adapted to events detected by sensors and, for example, includes dynamic optical signaling.
    It is particularly advantageous if the sensor is a camera sensor, an infrared sensor
    Ultrasound sensor, a radar sensor, a position sensor of a satellite
    Navigation system, a motion sensor, an acceleration sensor, a wheel sensor or a magnetic field sensor, since sensors already present in a vehicle can often be used together for the electronic system according to the invention.
    A particularly preferred development of the invention is also encompassed by a further
    Detection system is formed, which is set up to determine recognition data of an opening means of the vehicle, preferably a vehicle key, in particular a radio vehicle key, which can be concluded from a user of the vehicle and from the
    Recognition data personalized data, preferably at least one personalized image or video, are determined for the user, which are transmitted via the message
    Object channel can be transmitted to the vehicle headlights for projection as a photo in front of the vehicle. It can thereby be achieved that, for example, one for the
    Vehicle users have customized information or elements of a vehicle
    Infotainment system of the vehicle can be projected in front of the vehicle as a second photograph.
    The invention and its advantages are described in more detail below with reference to non-limiting exemplary embodiments, which are illustrated in the accompanying drawings. The drawings show in
    1 shows a block diagram of an embodiment of an electronic architecture according to the invention,
    2 shows a representation of a message,
    3 is a perspective view of a first embodiment of an arrangement of components of a vehicle headlight according to the invention,
    4 is a perspective view of a second embodiment of an arrangement of components of a vehicle headlight according to the invention,
    5 is a front view of an optoelectronic component with an enlarged detailed view of the optoelectronic elements it contains,
    6 shows a high beam light distribution as a projected light image in front of a vehicle,
    7 shows a low beam light distribution as a projected light image in front of a vehicle,
    8 shows a high-beam light distribution as a projected light image in front of a vehicle and a dangerous object,
    FIG. 9 shows a representation according to FIG. 8, in which a light distribution with warning symbols is additionally projected for the dangerous object.
    Exemplary embodiments of the invention will now be explained in more detail with reference to FIGS. 1 to 9. In particular, parts that are important for the invention are shown in a headlight, it being clear that a headlight also has many other parts, not shown
    contains, which enable a sensible use in a motor vehicle, such as in particular a car or motorcycle. For the sake of clarity, cooling devices for components, other optical elements, and mechanical ones are, for example
    Adjustment devices or brackets not shown.
    In order to improve the legibility of the description and the claims, an explicit mention of "at least one" feature was omitted in several places. The
    Characteristic should nevertheless be used both in a single number and in a plurality of the characteristic. Consequently, these two variants are included in the description and the claims, even if each feature is not explicitly cited in the majority.
    1 shows an exemplary embodiment of a vehicle headlight 1, which is set up to form a light image in front of a vehicle, comprising a first one
    Microprocessor 100, a first memory 110, a control channel control unit 120 and first light modules 211, 212, each with a first output unit 221, 222, and a second light module 213 with a second output unit 223.
    The first microprocessor 100 is with the first memory 110 and the control channel
    Control unit 120 connected.
    The control channel control unit 120 communicates with the respective one for data exchange
    Output unit 221, 222, 223 of the first and second light modules 211, 212, 213. These
    Communication can take place via an internal headlight bus 200, which can be a CAN bus, for example. Alternatively, for example, communication can also take place via a serial interface.
    The control channel control unit 120 is set up by a first electronic
    System 60 of the vehicle to receive at least one control message via a control channel 121 and at least partially forward it to the first microprocessor 100, which forms control data by means of parts of the control message and controls at least one operating mode of the vehicle headlight 1 with the control data.
    The control data can be used, for example, to control a headlight range control or a heating element of a vehicle headlight, but also to control a light function for a turn signal, a high beam, a cornering light, a signal light, a low beam or the like.
    The first microprocessor 100 is set up to call up and process first light data 111, 112, which are stored in the first memory 110, and to the respective one
    Output unit 221, 222, 223 of the first and second light modules 211, 212, 213 to transmit, wherein the first and second output units 221, 222, 223 are each set up, an optoelectronic connected to the respective output unit 221, 222, 223
    Control component 231, 232, 233 by means of the first light data 111, 112. The
    Output unit 221, 222, 223 can be an electronic driver circuit connected to the
    Control of an optoelectronic component is specifically adapted.
    The first light module 211, 212 is set up that emitted from a first light source
    Light at least partially in the direction of at least one first projection optics through a
    To modulate the modulator and to project a first photo in front of the vehicle. The first light source can be formed, for example, by a matrix-shaped arrangement of LEDs, and its modulation can be carried out, for example, by individually controlling the respective light intensity, such as by PWM (pulse width modulation).
    Alternatively, the first light source can also be a conventional fog lamp, which has only one switched-on and one switched-off operating state.
    3 and 4, the second light module 213 comprises at least a second one
    Light source 2, 12, an optoelectronic component 233, 234 in which a plurality of controllable optical elements 230, which are controlled electronically by the respectively associated output unit 223, 224, are arranged and at least one second projection optics 4, 14 and the at least one second light module 213, 214 is set up to direct the light emitted by the second light source 2, 12 to the optical elements 230 of the optoelectronic component 233, 234, and to modulate and in at least partially by the optical elements 230 in the direction of the at least one second projection optics 4, 14 to project a second photograph in front of the vehicle. The optoelectronic component 233, 234 of the second light module 213, 214 can be, for example, a micromirror arrangement in the form of a DLP® chip, which can selectively reflect incident light.
    The vehicle headlight 1 further comprises an object channel control unit 130, a second microprocessor 101 and a second memory 90, the second one
    Microprocessor 101 is connected to the object channel control unit 130 and the second memory 90 for data exchange.
    The object channel control unit 130 is set up by a second electronic
    System 61 of the vehicle to receive at least one message 500 via an object channel 131 and the second microprocessor 101 is set up by the object channel
    Control unit 130 at least partially retrieve the at least one message 500 and form image data therefrom.
    The second microprocessor 101 is also set up to control the respective output unit 223, 224 of the at least one second light module 213, 214 via a video channel 250, the output unit 223, 224 of the at least one second
    Light module 213, 214 is set up to generate common data from the control data and from the image data of the second light module 213, which describe a light distribution 400 of a vehicle headlight. The video channel 250 can, for example, correspond to the HDMI standard (“High Definition Multimedia Interface”) and a video
    Include stream according to the H.264 standard for video compression.
    In this exemplary embodiment, the first electronic vehicle system 60 is a
    Onboard power supply control unit and / or the second electronic vehicle system 61 a central one
    Driver assistance system.
    The first light modules 211, 212 and / or the second light module 213 have a controllable, matrix-like arrangement of light-emitting diodes or micromirrors, the second light module 213 having a higher image resolution than the first light modules 211, 212.
    The first light modules 211, 212 can thus be controlled via the control channel 121, which has a low transmission capacity, but can nevertheless transmit objects with a small data volume, such as simple graphic symbols generated dynamically by the first and / or second electronic vehicle system 60, 61 .
    The second light module 213 can thus be controlled via the object channel 131, which has a high transmission capacity and objects with a high data volume, such as detailed, dynamically by the first and / or second electronic
    Vehicle system 60, 61 can generate generated complex graphic symbols.
    The first and / or second memories 90, 110 contain the first and / or second memories
    Light data 91, 92, 111, 112 are stored, which comprise at least one light function, each with a predefined light distribution 300, 301 of the vehicle headlight 1 and / or predefined graphic symbols 400, and preferably the first and / or second light data 91, 111 from the first and / or second electronic vehicle system 60, 61 have been partially received.
    Thus, parts of the first and / or second light data 91, 111 can be statically stored in the first and / or second memory 90, 110, that is to say can be permanently programmed into the headlight 1 during production, and other parts of the first and / or second
    Light data 92, 112, dynamically stored in the first and / or second memory 90, 110, that is to say received by the first and / or second electronic vehicle system 60, 61 and / or by the first and / or second microprocessor 100 during operation of the headlight 1, 101 have been calculated or edited. Dynamically stored first and / or second light data 92, 112 are thus only during the operation of the
    Headlamp 1 temporarily saved.
    The first microprocessor 100, the first memory 110 and the control channel control unit 120 form a headlight control unit 125, which can form a separate electronic component within the headlight 1. For example, it may be necessary to provide complex and expensive printed circuit boards within the electronic assembly, which is why it may make sense to design this electronic assembly separately as a module.
    The first and second microprocessors 100, 101 and / or the first and second memories 90, 110 can each consist of a plurality of discrete semiconductor components, or also by a common processor component and a common memory, which is also stored on the common processor Component is integrated, be formed. Thus, for example, parallel processes or even virtual processors on the common
    Processor component run, and the memory of the processor component can be divided into several areas, which are assigned to the respective parallel processes or virtual processors.
    Alternatively, a headlight control unit 225, as identified in FIG. 1, can be provided, which includes the second microprocessor 101, the second memory 90 and the
    Object channel control unit 130 includes and a separate assembly within the
    Headlamp 1 forms.
    In addition, a light assembly 260 can be provided, which forms a separate structural unit within the headlight 1 with the headlight control unit 225 and the second light module 213. This modular concept enables the provision of a basic headlamp, in which the light assembly 260 can be supplemented if necessary and the costs can be reduced by the variable configuration of the headlamp. A very modular design can be achieved by design variants of the invention
    Vehicle headlights are created.
    The object channel can be a network communication medium and, for example, a
    Use the protocol according to the Ethernet or MOST bus standard and physically the object data in LVDS technology ("Low Voltage Differential
    Signaling ”).
    A large transmission bandwidth for messages 500, as shown in FIG. 2, can be formed by the object channel 131, which can also be configured for a real-time transmission, for example by using a real-time protocol
    Object channel 131 is applied. For this purpose, the message 500 can preferably be under
    Using TCP or UDP technology can be transmitted via the object channel 131, which is a branch of an Ethernet network, a branch of a real-time Ethernet
    Network, preferably according to the Precision Time Protocol, or a MOST bus.
    The light data 91, 95, 111, 112 can be stored in a form in the first and / or second memory 90, 110 when the vehicle headlight 1 is generated, so that the first and / or second microprocessor 100, 101 does not have to carry out any additional processing or calculation and the light data 91, 95, 111, 112 directly to the respective one
    Output unit 221, 222, 223 can be output. The second output unit 223 is additionally set up to receive data from both the first microprocessor 100 and the second microprocessor 101, for example via the headlight bus 200 and the video channel 250, to combine these data and in the form of a common photograph to be imaged via the optoelectronic component 233.
    The control channel 121 can be a CAN bus.
    A vehicle controller 50 includes the at least one vehicle headlight 1 and first and second electronic systems 60, 61, the first and second electronic systems
    Systems 60, 61 dynamically determine a light distribution 400 (see FIG. 9) which can be transmitted in the form of a message 500 to the vehicle headlight 1 via the object channel 131.
    The first and / or second electronic system 60, 61 comprise at least one sensor which is set up to acquire sensor data and to determine at least one light distribution 400 therefrom.
    The sensor can be a camera sensor, an infrared sensor, an ultrasonic sensor, a radar
    Sensor, a position sensor of a satellite navigation system, a motion sensor, an acceleration sensor, a wheel sensor or a magnetic field sensor.
    Furthermore, a recognition system is included, which is set up to determine recognition data of an opening means of the vehicle, which can be used to infer a user of the vehicle. Personalized data, preferably at least one personalized image or video, can be determined for the user from the recognition data
    Message 500 via the object channel 131 to the vehicle headlight 1 for projection as
    Photo to be transmitted in front of the vehicle.
    The opening means of the vehicle can be a mechanical or electronic key. Radio vehicle keys are particularly suitable for electronic keys, for example in RFID technology or in the form of active transponders, since there are several individual keys
    User IDs for the same vehicle can be easily realized. Alternatively, optical recognition systems, for example faces or
    Vehicle user fingerprints can be used.
    The vehicle headlight 1 can also comprise a plurality of headlight buses, for example a serial bus, via which an object channel control unit connects with the
    Microprocessor is connected.
    Several components of the vehicle headlight 1, for example the
    Microprocessor 100, memory 110, control channel unit 120 and DMA
    Control unit, within a semiconductor chip or a chip housing, for example as
    SoC ("System on Chip") or SiP ("System in Package") can be integrated.
    An exemplary embodiment of the at least one message 500 is shown in FIG. 2, which comprises at least one destination address 501, at least one object identification 502 and at least one object description 503. The object channel control unit 130, as shown in FIG. 1, can comprise at least one receive identifier 140, which corresponds to the at least one destination address 501 and is preferably an IP address. The microprocessor 100 is set up to use the object description 503 to form at least one light matrix 201, 202 which represents a light distribution of a vehicle headlight.
    The object address 501 and the reception identifier 140 can, for example, be one
    Address "10.0.0.123" in IPv4 network format.
    The object description or the object attribute 503 can itself be one
    Include light matrix.
    3 shows a first embodiment of an assembly or a device in the form of a light module 213 of the vehicle headlight 1. A light source 2, which can contain, for example, a light-emitting diode or power LED and primary optics 3 for bundling a light beam, is set up to be an optoelectronic one Illuminate component 233. The primary optics 3 can comprise several optical elements, such as lenses.
    The optoelectronic component 233 can comprise a plurality of optoelectronic elements 230 arranged in a two-dimensional matrix. In this first
    In the exemplary embodiment, the optoelectronic elements 230 can be controlled individually
    Micromirrors in which the reflection effect of each individual element of the matrix can be variably adjusted, for example a DMD.
    The optoelectronic component 233 can direct the incident light in a direction
    Reflecting projection optics 4, the controlled matrix elements, that is to say the optoelectronic elements 230, individually reflecting their reflection factor by modulating the
    Set the angle of the micromirrors and modulate a desired light distribution on the incident light beam. The projection optics 4 is in the radiation direction of the
    Vehicle headlights 1 oriented and generates the desired light distribution before
    Vehicle.
    The optoelectronic component 233 is controlled by the output unit 223, the microprocessor 100 calculating a desired light distribution or from it
    Memory 110 can retrieve, and the output unit 223 the control of the optoelectronic elements 230 in the form of control signals to the optoelectronic
    Outputs component 233.
    Fig. 4 shows a second embodiment of an assembly or one
    Device in the form of a light module 214 of a vehicle headlight 1. A
    Light source 12, which can contain, for example, a light-emitting diode, high-current LED power LED or a laser diode and primary optics 13 for bundling the light beam emanating from light source 12, is set up to illuminate an optoelectronic component 234.
    The optoelectronic component 234 comprises a plurality of optoelectronic elements arranged in a two-dimensional matrix. In this second exemplary embodiment, the optoelectronic elements are individually controllable transparent elements (not shown), in which the light transmission effect of each individual element of the matrix can be variably adjusted, for example an LCD.
    The optoelectronic component 234 can direct the incident light in a direction
    Allow projection optics 14, the controlled matrix elements individually
    Adjust light transmission and a desired light distribution on the incident
    Modulate the light beam. The projection optics 14 is in the radiation direction of the
    Vehicle headlights 1 oriented and generates the desired light distribution before
    Vehicle.
    The statements in FIG. 3 also apply.
    FIG. 5 shows an example of an optoelectronic component 233 in the form of a DMD in
    Front view shown. An enlarged image section shows optoelectronic elements 230 arranged in a matrix, which comprise individually controllable micromirrors, in which example every second micromirror is tilted.
    In addition to the variants of the optoelectronic component 233, 234 shown in FIGS. 3 and 4, it is of course also possible to use other technologies which have a corresponding
    Enable modulation of the light, such as LCoS systems (LCoS, "Liquid
    Crystal on Silicon ").
    Examples of light distributions of the vehicle headlight 1 are by the high beam
    Light distribution 300 and the low beam light distribution 301 in FIGS. 6 and 7 are shown as a light image in front of the vehicle.
    In addition to the high beam light distribution 300 according to FIG. 5, FIG. 8 shows an object, in the present example a wild animal. One or more electronic
    Vehicle systems 60, 61 can be provided by at least one sensor, which is a camera sensor
    Infrared sensor, an ultrasonic sensor, a radar sensor, a position sensor
    Satellite navigation system, a motion sensor, an acceleration sensor, a wheel sensor or a magnetic field sensor that can detect the wild animal. Combined sensors for detecting situations or moments of danger for the vehicle are also possible, which use several different sensor technologies simultaneously.
    The object detected by the at least one sensor using sensor data, here this
    Wild animal can be determined by at least the electronic vehicle systems 60, 61 and from this at least one light distribution 400 can be determined, as indicated in FIG. 9. The vehicle headlight 1 can, for example, overlay two light distributions, the high beam light distribution 300 and a signal light distribution 400 in the form of a hazard warning or a highlighting of the detected hazard torque, such that in addition to the basic light function of the vehicle headlight 1, an optical signaling for a total Light distribution are combined, which can be projected as a light image in front of the vehicle via a light module 213.
    Alternatively, the electronic vehicle system 60, 61 may further comprise a recognition system which is set up to determine recognition data of an opening means of the vehicle, which can be concluded from and from a user of the vehicle
    Identification data personalized data, preferably at least one personalized image or video, are determined for the user, which are transmitted via the message 500 via the
    Object channel 131 to the vehicle headlight 1 for projection as a light image in front of the
    Vehicle is transmitted. In this way, for example, a user of the vehicle can be greeted individually when the vehicle is started up by an optical projection in front of the vehicle.
    Reference symbol list: 1 vehicle headlights 2, 12 light source 3, 13 primary optics 4, 14 projection optics 50 vehicle control 60, 61 electronic system of the vehicle 100, 101 microprocessor 90, 110 memory 91, 111 dynamic light data 95, 112 static light data 120 control channel control unit 121 control channel 125 , 225 headlight control unit 130 object channel control unit 131 object channel 140 reception identifier 200 headlight bus 201, 202, 203 light matrix 211, 212, 213, 214 light module 221, 222, 223, 224 output unit 230 controllable optical element 231, 232, 233, 234 optoelectronic component 250 video channel 260 light assembly 300, 301, 400 light distribution 500 message 501 destination address 502 object identification 503 object attribute or object description
    权利要求:
    Claims (13)
    [1]
    PATENT CLAIMS
    Vehicle headlight (1) which is set up to form a light image in front of a vehicle, comprising a first microprocessor (100), a first memory (110), a control channel control unit (120) and at least a first light module (211, 212) each with a first output unit (221, 222), and at least one second light module (213, 214) each with a second output unit (223, 224), the first microprocessor (100) with the first memory (110) and the control channel control unit (120) is connected, and the control channel control unit (120) communicates with the respective output unit (221, 222, 223) of the at least one first and second light module (211, 212, 213, 214) for data exchange, and the control channel control unit (120) is set up to receive at least one control message from a first electronic system (60) of the vehicle via a control channel (121) and to pass it on to the first microprocessor (100) at least partially, which one it forms control data by dividing the at least one control message and controls at least one operating mode of the vehicle headlight (1) with the control data, and the first microprocessor (100) is set up to store first light data (111, 112) which is stored in the first memory (110) are to be called up and edited and transmitted to the respective output unit (221, 222, 223, 224) of the at least one first and second light module (211, 212, 213, 214), the first and second output unit (221, 222, 223, 224) is set up in each case to control an optoelectronic component (231, 232, 233, 234) connected to the respective output unit (221, 222, 223, 224) by means of the first light data (111, 112), and that at least one first Light module (211, 212) is set up to modulate the light emitted by a first light source at least partially in the direction of at least one first projection optics by means of a modulator and to transmit a first light image to the company projecting vehicle, and the at least one second light module (213, 214) at least one second light source (2, 12), an optoelectronic component (233, 234) in which a plurality of controllable optical elements (230) that are generated by the associated output unit ( 223, 224) are electronically controlled, are arranged and comprise at least one second projection optics (4, 14) and at least one second light module (213, 214) is set up, the light emitted by the second light source (2, 12) to the optical elements (230) of the optoelectronic component (233, 234), and at least partially modulated by the optical elements (230) in the direction of the at least one second projection optics (4, 14) and projecting a second light image in front of the vehicle, characterized that the vehicle headlight (1) further comprises an object channel control unit (130), a second microprocessor (101) and a second memory (90), the second microprocessor (101) for Data exchange with the object channel control unit (130) and the second memory (90) is connected, and the object channel control unit (130) is set up, from a second electronic system (61) of the vehicle at least one message (500) via an object channel (131 ) and the second microprocessor (101) is set up to at least partially retrieve the at least one message (500) from the object channel control unit (130) and form image data therefrom, and the second microprocessor (101) is also set up via a video Channel (250) to control the respective output unit (223, 224) of the at least one second light module (213, 214), the output unit (223, 224) of the at least one second light module (213, 214) being set up from the control data and to generate common data from the image data of the at least one second light module (213, 214), which describe a light distribution (400) of a vehicle headlight.
    [2]
    2. Vehicle headlight (1) according to claim 1, characterized in that the first electronic vehicle system (60) is an on-board electrical system control unit and / or the second electronic vehicle system (61) is a central driver assistance system.
    [3]
    3. Vehicle headlight (1) according to one of the preceding claims, characterized in that the at least one first light module (211, 212) and / or the at least one second light module (213, 214) is a controllable, matrix-shaped arrangement of light-emitting diodes or micromirrors, wherein the at least one second light module (213, 214) has a higher image resolution than the at least one first light module (211, 212).
    [4]
    4. Vehicle headlight (1) according to one of the preceding claims, characterized in that the first and / or second light data (91, 92, 111, 112) are stored in the first and / or second memory (90, 110), the at least one Light function each with a predefined light distribution (300, 301) of the vehicle headlight (1) and / or predefined graphic symbols (400), and preferably the first and / or second light data (91, 111) from the first and / or second electronic vehicle system ( 60, 61) were partially received.
    [5]
    5. Vehicle headlight (1) according to one of the preceding claims, characterized in that the message (500) is preferably transmitted using TCP or UDP technology via the object channel (131), which is a branch of an Ethernet network Branch of a real-time Ethernet network, preferably according to the Precision Time Protocol, or a MOST bus.
    [6]
    6. Vehicle headlight (1) according to one of the preceding claims, characterized in that the control channel (121) is a CAN bus.
    [7]
    7. Vehicle headlight (1) according to one of the preceding claims, characterized in that the message (500) comprises at least one destination address (501), at least one object identification (502) and at least one object description (503), and the object channel control unit (130) comprises at least one receive identifier (140) which corresponds to the destination address (501) and is preferably an IP address.
    [8]
    8. Vehicle headlight (1) according to claim 7, characterized in that the microprocessor (100) is set up to form from the object description (503) at least one light matrix (201, 202) which represents a light distribution of a vehicle headlight.
    [9]
    9. Vehicle headlight (1) according to one of claims 7 or 8, characterized in that the object description (503) itself comprises a light matrix.
    [10]
    10. Vehicle control (50), comprising at least one vehicle headlight (1) according to one of the preceding claims, wherein the first and second electronic systems (60, 61) dynamically determine a light distribution (400), which in the form of the message (500) to the Vehicle headlights (1) is transmitted via the object channel (131).
    [11]
    11. Vehicle control (50) according to claim 10, characterized in that the first and second electronic systems (60, 61) comprise at least one sensor which is set up to record sensor data and determines at least one light distribution (400) therefrom.
    [12]
    12. Vehicle control (50) according to claim 11, characterized in that the sensor is a camera sensor, an infrared sensor, an ultrasound sensor, a radar sensor, a position sensor of a satellite navigation system, a motion sensor, is an acceleration sensor, a wheel sensor or a magnetic field sensor.
    [13]
    13. Vehicle control (50) according to one of claims 10 to 12, characterized by a further comprising recognition system which is set up to determine recognition data of an opening means of the vehicle, preferably a vehicle key, which can be concluded from a user of the vehicle and from the recognition data personalized data, preferably at least one personalized image or video, are determined for the user and are transmitted to the vehicle headlight (1) by means of the message (500) via the object channel (131) for projection as a second photograph in front of the vehicle.
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    同族专利:
    公开号 | 公开日
    JP2020529944A|2020-10-15|
    JP6924894B2|2021-08-25|
    KR102300322B1|2021-09-10|
    WO2019028483A1|2019-02-14|
    CN110914108A|2020-03-24|
    KR20200022503A|2020-03-03|
    US20200215963A1|2020-07-09|
    EP3665040A1|2020-06-17|
    AT519864B1|2018-11-15|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50668/2017A|AT519864B1|2017-08-10|2017-08-10|Vehicle headlight and vehicle control|ATA50668/2017A| AT519864B1|2017-08-10|2017-08-10|Vehicle headlight and vehicle control|
    KR1020207003878A| KR102300322B1|2017-08-10|2018-07-24|Vehicle headlamps and vehicle controls|
    CN201880051518.4A| CN110914108A|2017-08-10|2018-07-24|Vehicle headlamp and vehicle control device|
    PCT/AT2018/060158| WO2019028483A1|2017-08-10|2018-07-24|Vehicle headlamp and vehicle control|
    EP18752086.1A| EP3665040A1|2017-08-10|2018-07-24|Vehicle headlamp and vehicle control|
    US16/637,629| US20200215963A1|2017-08-10|2018-07-24|Vehicle Headlamp and Vehicle Control|
    JP2020506948A| JP6924894B2|2017-08-10|2018-07-24|Vehicle floodlights and vehicle controls|
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