WO2009021660A1 - Système d'éclairage pour un véhicule automobile - Google Patents

Système d'éclairage pour un véhicule automobile Download PDF

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Publication number
WO2009021660A1
WO2009021660A1 PCT/EP2008/006458 EP2008006458W WO2009021660A1 WO 2009021660 A1 WO2009021660 A1 WO 2009021660A1 EP 2008006458 W EP2008006458 W EP 2008006458W WO 2009021660 A1 WO2009021660 A1 WO 2009021660A1
Authority
WO
WIPO (PCT)
Prior art keywords
illumination
headlamp
emitted light
light
headlight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/006458
Other languages
German (de)
English (en)
Inventor
Volker Oltmann
Bernd Woltermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler AG filed Critical Daimler AG
Publication of WO2009021660A1 publication Critical patent/WO2009021660A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/05—Special features for controlling or switching of the light beam
    • B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind

Definitions

  • the invention relates to a lighting system for a motor vehicle and a method for its operation.
  • Known lighting systems for motor vehicles include headlights, which are designed so that either a radiation characteristic "low beam” or a radiation characteristic “high beam” is adjustable.
  • low beam an area located directly in front of the vehicle in the direction of travel below a horizontal line and above it an asymmetrical wedge-shaped area on the roadside is illuminated on one side of the road, depending on whether the vehicle is designed for right-hand traffic or left-hand traffic.
  • high beam the area in front of the vehicle is also illuminated at a greater distance.
  • the lighting systems are provided with a headlamp leveling, by means of which the headlamps in the vertical direction, either manually or automatically can be pivoted so that the illuminated at the respective emission characteristic area of the road regardless of a caused by the loading of the vehicle or in any other way tilt a transverse axis remains as similar as possible so that driving ahead or oncoming traffic participants are not dazzled.
  • a headlamp system for vehicles with at least one headlamp unit is known, are emitted by the light beam with different characteristics, with a sensor device through which the traffic situation in front of the vehicle is detected and evaluated, and with a switching device by the Depending on the traffic situation detected by the sensor device, the characteristic of the light beam emitted by the at least one headlamp unit is changed, characterized in that the traffic situation on preceding vehicles and their distance from the vehicle is evaluated by the sensor device and that in the case of a vehicle ahead of it, the characteristic of the light beam emitted by the at least one headlamp unit is changed in such a way that it less illuminates the far area in front of the vehicle than without the vehicle ahead.
  • the object is achieved by a lighting system with the features of claim 1 and a method having the features of claim 7.
  • An illumination system according to the invention for a motor vehicle comprises at least one headlight through which light can be emitted, at least with the emission characteristics "low beam” and "high beam”.
  • the headlight is provided with a manually or automatically acting headlamp leveling, by means of which the headlamp is at least vertically pivotable and the emitted light can be raised or lowered.
  • high beam emitted light includes both a Femlichtausleuchtung and a dipped beam illumination.
  • the dipped-beam illumination may be set differently, e.g. as a city, country, bad weather or motorway light.
  • the dipped beam illumination is characterized in that it does not dazzle an oncoming and / or a preceding vehicle.
  • the headlight illumination for a headlamp is limited by at least one vertical HeII / Bisiere border.
  • This light characteristic is referred to as Operafernlicht because of the sharp vertical light / dark boundary.
  • the Femlichtausleuchtung for a headlight abuts in particular in the vertical direction of the low beam illumination or overlaps with this.
  • the total emitted light distribution in the case of "high beam” and "low beam” is set up symmetrically, for example, by two headlamps (left and right headlamps).
  • the symmetrical light structure can be adapted at the edges to the respective right / left traffic licensing standards.
  • a detection device for detecting objects is provided at least in one emission direction of the headlight.
  • the emitted light is adjustable by means of the headlamp leveling so that the object is outside of an inner axis bounded by an axis of symmetry and the vertical light / dark boundary inner area.
  • the emitted light in the "high-beam" emission characteristic is adjusted such that the area adjoining the vertical light / dark boundary is illuminated with the dipped-beam illumination up to the object.
  • the maximum illumination takes place in particular such that when a vehicle is detected in the region adjoining the vertical light / dark boundary, the emitted light is swiveled so that the dipped-beam illumination ends just below the detected vehicle.
  • the area up to the vehicle is maximally illuminated without dazzling the occupants of the detected vehicle.
  • the vertical light / dark boundary of the high beam of the right headlamp delimiting the corridor is preferably located on the left side of the high beam illumination. Corresponding to the left-hand headlight on the right-hand side, so that a corridor lying between the two headlights is created, which is only reached by the dipped-beam headlight.
  • the headlamp leveling means comprises means for pivoting the headlamp.
  • the headlight is pivoted about a transverse axis to the direction of travel.
  • an adjustable diaphragm arranged in the headlight can also be provided, for example in the form of a slide or roller.
  • the headlight or the emitted light is additionally horizontally pivotable by means of the headlight range adjustment. In this way, the far view of the driver can be improved without the risk of dazzling oncoming or leading road users.
  • At least two headlamps are provided whose emitted light can be pivoted independently of one another. If, for example, an object is illuminated only by one of the headlights, then only its luminous characteristic must be adjusted.
  • the detection device preferably comprises at least one camera and / or at least one radar system and / or at least one lidar system.
  • Such systems are already present in some modern vehicles, for example, for the realization of assistance systems to maintain a safety distance, so that here also no additional effort.
  • the headlight range control can be adjusted so that the detected object in the dim light illumination is outside the high beam illumination. If the two illuminations overlap, the detected object should at least not be in the high beam illumination outside the overlap.
  • the emitted light for the high-beam illumination can be pivotable independently of the emitted light for the dipped-beam illumination, in particular if the headlight range control comprises diaphragms.
  • the emitted light is pivoted in dependence on a distance to the object, in particular so that the emitted light is then pivoted maximum, when the distance to the object is very large.
  • the emitted light is only slightly tilted when the distance to the object is low.
  • the emitted light can then be pivoted maximum, if no object has been identified.
  • the dipped-beam illumination in a basic position with about 1% gradient of the emitted light covers an area up to about 70 m in front of the motor vehicle. If the distance to the object is greater, the emitted light can, for example, be swiveled so that the dipped-beam illumination extends to approximately 300 m. For this purpose, it is usually sufficient to pivot in a range of -2% to +2% relative to a 100% pivot angle of 90 °. For example, the maximum pan movement for objects at a great distance or without identified objects may be +5%.
  • a pivoting of the emitted light down from the home position is particularly considered when the motor vehicle is on an incline and the object has been identified at a vertex of the rise, so that glare is likely due to the low beam illumination in the home position.
  • FIG. 2 shows light projected perpendicular to the surface from the right-hand headlight with a "high-beam” emission characteristic
  • FIG. 3 the light projected with the "high-beam” emission characteristic and an object in an area adjoining a vertical light-dark boundary
  • Fig. 5 projected by the right headlamp and a left headlamps light with the emission characteristic "high beam” and the object in a symmetrical representation
  • FIG. 1 shows a light projected perpendicular to a surface from a right-hand headlight of a lighting system of a motor vehicle (not shown) with a "low beam" emission characteristic.
  • the projection on a surface serves to illustrate the radiation characteristics and is rather rare in practice.
  • a dipped-beam illumination 1 results below a horizontal line 2 and an inclined line 4 extending obliquely upward from the horizontal line 2 to a side 3 of the surface.
  • the dipped beam illumination schematically illustrated includes low beam illumination characteristics such as urban, rural, bad weather, cornering, turning or highway light.
  • FIG. 2 shows a light projected perpendicular to the surface from the right-hand headlight (not shown) with a "high-beam” emission characteristic.
  • the result is a substantially rectangular high-beam illumination 5.
  • the Femlichtausleuchtung 5 partially overlaps with the Abbleriumtausleuchtung 1 and is by a vertical light / dark boundary 7 in lateral Direction y on the inclined line 4 opposite limited page.
  • FIG. 3 the dipped-beam illumination 1 and the high-beam illumination 5 are shown in FIG.
  • an object 8 has emerged in an area 9 delimited by the vertical light / dark boundary 7 and an axis of symmetry 10 and identified as an oncoming vehicle by a detection device (not shown) comprising, for example, a camera or a radar system or a lidar system becomes.
  • headlamp leveling (not shown) is activated, which pivots the emitted light so that the dipped-beam illumination reaches just below the object 8, so that occupants of the vehicle-identified object 8 are not dazzled, but the area 9 is optimally illuminated, as in FIG Figure 4 is shown.
  • the pivoting movement takes place, as usual in headlamp leveling, vertically in one direction z.
  • a horizontal pivoting movement in a direction y may be provided.
  • object 8 a preceding vehicle and the emitted light to be pivoted accordingly.
  • the tilting of the emitted light takes place in such a way that dazzling of a driver of the oncoming or preceding vehicle is avoided and at the same time the area in front of the motor vehicle is maximally illuminated without dazzling the occupants in the vehicle 8. In the ideal case, this means that the illumination extends to the bumper of the vehicle 8.
  • this maximum possible illumination can be limited to an area in front of the vehicle 8 (for example, several meters), for example due to legal regulations or due to temporal variations, which must be taken into account in the adaptation accordingly.
  • the pivoting of the emitted light can be accomplished by pivoting the headlamp itself or by moving an aperture arranged in the headlamp, for example in the form of a roller or slide.
  • the lighting system comprises a plurality of headlights
  • their emitted light can be independently pivotable.
  • the headlight is swiveled, the dipped-beam illumination 1 can be pivoted together with the remote light illumination 5.
  • the emitted light for the Femlichtausleuchtung 5 also be independent of the emitted light for the Abbleriumtausleuchtung 1 pivotally.
  • FIG. 5 shows the light projected by the right-hand headlight and a left-hand headlight in the case of the "high-beam" emission characteristic.
  • the light projected by the left-hand headlight is mirrored on the symmetry axis 10 to the light of the right-hand headlight.
  • the object 8 is a vehicle ahead in its own lane.
  • the light of both headlights is pivoted so that the horizontal line 2 of the low beam illumination 1 to just below the object 8 extends (dashed line).
  • the dipped-beam illumination 1 of each of the headlights rises toward a respective roadway edge.
  • the illumination profiles of the headlights shown in the figures can additionally be adapted in accordance with the respective regulations for right-hand traffic or left-hand traffic, as shown by way of example in FIG. 6, for a possible total light distribution adapted to licensing provisions in legal traffic.
  • the emitted light is pivoted in dependence on a distance to the object 8, in particular so that the emitted light is then pivoted maximum, when the distance to the object 8 is very large and that the emitted light is only slightly pivoted when the distance to Object 8 is low. Likewise, the emitted light can then be pivoted maximum, if no object 8 has been identified.
  • the dipped-beam illumination in a basic position with approximately 1% gradient covers an area up to approximately 70 m ahead of the motor vehicle.
  • the emitted light can be, for example, pivoted so that the dipped beam illumination reaches 1 to about 300 m.
  • the maximum pivotal movement of objects 8 at a great distance or without identified objects 8 may be for example +5%.
  • a pivoting of the emitted light down from the basic position is particularly considered when the motor vehicle is on an incline and the object 8 has been identified at a vertex of the rise, so that glare is already likely by the low beam illumination 1 in the home position.
  • the high-beam function can be combined with a cornering function, ie pivoting the headlights horizontally.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un système d'éclairage pour un véhicule automobile comprenant au moins un phare qui émet de la lumière ayant au moins les caractéristiques de faisceau de type "feu de croisement" ou "feu de route". Un éclairage de type "feu de route" (5) est limité dans une direction horizontale (y) par au moins une limite verticale clair/obscur (7), et dans le cas des "feux de route", l'éclairage de type "feu de route" (5) ainsi qu'un éclairage de type "feu de croisement" (1) sont activés. À la détection d'un objet (8) et son identification en tant que véhicule, la lumière émise peut être ajustée au moyen d'une régulation de largeur de faisceau de telle sorte que l'objet (8) se trouve en dehors de l'éclairage de type "feu de route" (5) et/ou de l'éclairage de type "feu de croisement" (1), et qu'une zone (9) adjacente à la limite verticale clair/obscur (7) soit éclairée au maximum avec l'éclairage de type "feu de croisement" (1).
PCT/EP2008/006458 2007-08-16 2008-08-06 Système d'éclairage pour un véhicule automobile Ceased WO2009021660A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007038563.5 2007-08-16
DE200710038563 DE102007038563A1 (de) 2007-08-16 2007-08-16 Beleuchtungssystem für ein Kraftfahrzeug

Publications (1)

Publication Number Publication Date
WO2009021660A1 true WO2009021660A1 (fr) 2009-02-19

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ID=39874065

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PCT/EP2008/006458 Ceased WO2009021660A1 (fr) 2007-08-16 2008-08-06 Système d'éclairage pour un véhicule automobile

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DE (1) DE102007038563A1 (fr)
WO (1) WO2009021660A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2344363B1 (fr) * 2008-10-30 2016-12-14 Volkswagen Aktiengesellschaft Procédé de commande d'un système de phares pour un véhicule et système de phares correspondant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011031808A (ja) * 2009-08-04 2011-02-17 Koito Mfg Co Ltd 車両用前照灯の配光制御システム
DE102009037559A1 (de) * 2009-08-13 2011-02-17 Automotive Lighting Reutlingen Gmbh Frontscheinwerfer mit einem LED-Teilfernlichtmodul
DE102010035636B4 (de) * 2010-08-27 2024-10-10 HELLA GmbH & Co. KGaA Vorrichtung zum Wechseln von einer Fernlichtverteilung zu einer ein zu entblendendes Objekt entblendenden Lichtverteilung
FR2983278B1 (fr) * 2011-11-28 2018-04-13 Psa Automobiles Sa. Eclairage frontal de vehicule
FR3029266B1 (fr) * 2014-11-27 2020-08-07 Peugeot Citroen Automobiles Sa Projecteur de vehicule
FR3049523B1 (fr) * 2016-03-29 2020-01-31 Peugeot Citroen Automobiles Sa Projecteur de vehicule

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743885A (en) * 1970-09-18 1973-07-03 Lucas Industries Ltd Road vehicle lighting systems
US20040052083A1 (en) * 2002-09-12 2004-03-18 Yoshinao Daicho Vehicle headlamp apparatus
JP2007099078A (ja) * 2005-10-04 2007-04-19 Denso Corp 車両用前照灯制御装置
US20070091629A1 (en) * 2005-10-07 2007-04-26 Kiyotaka Fukawa Vehicle Lighting Device
US20070147055A1 (en) * 2005-12-28 2007-06-28 Koito Manufacturing Co., Ltd. Vehicle lighting device
DE102006043281A1 (de) * 2006-09-14 2008-03-27 Hella Kgaa Hueck & Co. Projektionsscheinwerferanordnung für Fahrzeuge
WO2008037388A2 (fr) * 2006-09-27 2008-04-03 Volkswagen Aktiengesellschaft Ensemble phare pour un véhicule et procédé de commande associé

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19716784B4 (de) 1997-04-22 2006-05-18 Automotive Lighting Reutlingen Gmbh Scheinwerferanlage für Fahrzeuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743885A (en) * 1970-09-18 1973-07-03 Lucas Industries Ltd Road vehicle lighting systems
US20040052083A1 (en) * 2002-09-12 2004-03-18 Yoshinao Daicho Vehicle headlamp apparatus
JP2007099078A (ja) * 2005-10-04 2007-04-19 Denso Corp 車両用前照灯制御装置
US20070091629A1 (en) * 2005-10-07 2007-04-26 Kiyotaka Fukawa Vehicle Lighting Device
US20070147055A1 (en) * 2005-12-28 2007-06-28 Koito Manufacturing Co., Ltd. Vehicle lighting device
DE102006043281A1 (de) * 2006-09-14 2008-03-27 Hella Kgaa Hueck & Co. Projektionsscheinwerferanordnung für Fahrzeuge
WO2008037388A2 (fr) * 2006-09-27 2008-04-03 Volkswagen Aktiengesellschaft Ensemble phare pour un véhicule et procédé de commande associé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2344363B1 (fr) * 2008-10-30 2016-12-14 Volkswagen Aktiengesellschaft Procédé de commande d'un système de phares pour un véhicule et système de phares correspondant

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