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WO2006111291A1 - Systeme de phare pour un vehicule - Google Patents

Systeme de phare pour un vehicule Download PDF

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Publication number
WO2006111291A1
WO2006111291A1 PCT/EP2006/003273 EP2006003273W WO2006111291A1 WO 2006111291 A1 WO2006111291 A1 WO 2006111291A1 EP 2006003273 W EP2006003273 W EP 2006003273W WO 2006111291 A1 WO2006111291 A1 WO 2006111291A1
Authority
WO
WIPO (PCT)
Prior art keywords
road
control unit
headlight
light
unit
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/EP2006/003273
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
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of WO2006111291A1 publication Critical patent/WO2006111291A1/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
    • B60Q1/06—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 adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—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 adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/085—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 adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
    • 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
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/13—Attitude of the vehicle body
    • B60Q2300/134—Yaw
    • 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
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/32—Road surface or travel path
    • B60Q2300/322—Road curvature
    • 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
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/335—Number or size of road lanes
    • 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
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle

Definitions

  • the invention relates to a headlight system for vehicles for illuminating the vehicle environment.
  • German Patent Application DE 197 16 784 A1 discloses a headlamp system for vehicles with at least one headlamp unit, through which light bundles with different light characteristics can be emitted. It has a sensor unit for detecting the traffic situation, which is connected to a control unit which changes the characteristic of the transmitted light bundles as a function of the traffic situation detected by the sensor unit. In addition to the vehicle's own driving speed, the sensor unit also detects whether preceding vehicles are present and what distance they have to their own vehicle. It also takes into account whether the vehicles driving in front travel in the same direction of travel or drive in the opposite direction of travel.
  • German Patent Application DE 199 22 735 A1 discloses a headlamp system for vehicles which, depending on the weather conditions or road surface conditions detected by a sensor unit, purposefully selects the light characteristics of the headlamp units. In this case, for example, the intensity of the light, the color of the light and the distribution of the illumination intensity in the illuminated area is varied depending on the weather situation or the property of the road surface.
  • the invention has the object of developing a headlight system for vehicles according to the preamble of claim 1 to the effect that it allows reliable and safe lighting of the environment.
  • the headlight system according to the invention for a vehicle exhibits at least one headlamp unit whose light bundles can be varied in their light characteristic.
  • the headlamp unit is controlled by a control unit so that depending on road conditions and thus depending on the traffic situation, the headlamp range of the headlamp unit is purposefully changed as a measure of the light characteristic.
  • the control unit is connected to a sensor unit for • detecting the course of the road, which is particularly suitable for detecting the radius of curvature of the road ahead lying on the road.
  • the sensor unit thus supplies a sensor signal to the control unit, which contains information about an imminent To be traveled road course in particular includes the radius of curvature of an upcoming road section.
  • the light characteristic the headlamp unit or the headlamp units is selected so that the selected beam range ensures that the road area in the direction of travel is largely illuminated in front of the vehicle and there is no significant beyond lighting the areas outside the road.
  • the headlight range is typically shortened relative to a straight-line course of the road, thus no longer illuminating the roadway environment which extends significantly beyond the roadway, in particular in the region of 20 or 50 m laterally from the road.
  • the selected headlamp range corresponds essentially to the lighting direction of the existing road length.
  • the beam range is preferably chosen so that it protrudes in particular a few meters over this length.
  • the anticipated course of the road may include both road areas, which are located directly in front of the vehicle in the direction of travel, and road areas, which are located ahead of the vehicle in the direction of travel.
  • road courses are taken into account, which are not limited to a curve but just extend to combinations of several curves.
  • a very effective road course-dependent control of the light characteristic is achieved, in particular with regard to the beam range.
  • the choice of headlights is based on a mathematical A relationship that associates, for example, with a determined radius of curvature, a specific headlight range that is set by the control unit in the headlight unit. Also, it has been proven, the possible headlights, which can be selected by the control unit, not to select from a continuous range of possible headlights, but from a plurality of fixed individual headlights.
  • the headlight range not only dependent on the road course, in particular the curve radius, but also to take into account the detected road width. If the road to be traveled is wider, the headlight range is extended according to the road width with respect to one lower detected road width. This makes it possible that substantially the entire relevant area of the road in the direction of the vehicle is illuminated by the appropriate choice of the beam range depending on the road width and the course of the road, especially the turning radius, so that the driver all relevant information by illuminating this relevant area are available. Conversely, non-relevant or less relevant information is not provided, as they are not illuminated by the headlight system according to the invention. This provides a very reliable and safe concept for a headlight system.
  • the horizontal orientation of the light beam emitted by the headlamp unit is additionally varied in order to change the light characteristic.
  • This additional variation in the horizontal alignment makes it possible to ensure that the driver has the possibility that the relevant road areas to be traveled in the future are illuminated in a targeted manner in the manner of a curve light depending on the curve radius and thus as a function of the road course laterally offset from the orientation of the vehicle.
  • the lighting range is chosen so that here, too relevant area of the road is lit and beyond this area is lit only to a very limited extent.
  • This additional variation of the light characteristic in the horizontal orientation is a particularly reliable and pleasant behavior of the headlight system is given, which significantly supports the driver in the vehicle.
  • the horizontal opening angle of the light bundles has proven particularly in connection with the consideration of the road width as a criterion for the control of the headlamp units. If the vehicle is on a very wide road or on a very wide traffic lane, the horizontal opening angle is purposefully chosen wider than on a narrow road. As a result, it is possible to illuminate the objects relevant for the vehicle guidance even more selectively depending on the driving situation and to present to the driver all important information in which they are purposefully illuminated, whereas less relevant or irrelevant information is made less accessible to the driver by the non-illumination or limited illumination. so that it is not distracted by this.
  • the control unit is connected to a glare sensor as part of the headlight system, which has the task of detecting oncoming vehicles and automates the headlight system from the state of high beam to the low beam mode switch as soon as an oncoming vehicle could be dazzled by its own high beam.
  • the blend sensor is realized by way of example as a simple photodiode, which identifies one or more strong spot light sources and identifies this as an oncoming, illuminated vehicle, which can cause glare.
  • the combination of the headlamp system according to the invention with such a simple blend sensor ensures that malfunctions of the headlamp system are prevented by strong reflections of the own emitted light of the headlamp units from the area outside the road and thus due to the choice of the headlamp range according to the invention by the non-illuminated reflective objects can.
  • the choice of light characteristics according to the invention ensures that unwanted, non-relevant objects are not illuminated outside the relevant roadway, so that they can not reflect their own light and thus these non-existing reflections can not be misinterpreted as oncoming illuminated vehicle, which a corresponding false control, ie dimming and thus transfer of the selected light characteristic in the low beam mode can be prevented or limited. This leads to a much better control behavior that leads to a less fatigue of the driver leads and thus leads to an improvement in driving safety.
  • Navigation units with integrated map data with information about the course of the road have proven to be particularly suitable as sensor units.
  • the use of gyrosensors to measure the lateral acceleration and thus as a measure of the course of the road (as a measure of the curvature of the road) has proved to be very successful.
  • the realization of the sensor unit using an image acquisition unit has proven very useful, the camera-based road information recorded in particular road, curve radius and / or road width and derived meaningful information on the road.
  • sensors and wheel speed sensors or steering wheel angle sensors or other acceleration sensors have proven.
  • Navigation device and / or the other sensors are then supplied to the control unit, which selects the light characteristics depending on these detected by the sensor units information about the road.
  • Image capture unit both for the determination of information about the road and at the same time to use as a blend sensor.
  • a sensor unit By combining these different realizations of a sensor unit, it is possible to obtain a very reliable information about the course of the road and thus for reliable control of the headlight system. It has proven particularly useful to achieve the change in the headlight range in a halogen headlights in that the control unit depending on the traffic situation depends on the light source of the halogen headlamps dimmed. Due to this special way of changing the headlight range is a very simple technically reliable and safe way of limiting or extending the beam range for a halogen headlights given, which can also be realized later in a built-in vehicle halogen headlights.
  • a headlight unit in the manner of a xenon, in particular a bixenon headlight, to realize the change in the headlight range by a change in position of the integrated in the headlight trim edge.
  • this is done by a shift of the glare edge, which allows the possibility of a continuous changing the beam range by the continuous shift of the glare edge and thus a very differentiated headlight range depending on the detected traffic situation.
  • it has also been proven to adjust the blend edge by turning a roller. On this roller either different skids are attached or mounted on a continuously changing relief or a continuously rotating upon rotation contour, which produce different beam profiles when turning the roller.
  • Luminous characteristics leads.
  • a very robust headlamp unit in the form of a xenon or bixenon headlamp given very reliable in the manner according to the invention allows a differentiated light characteristics depending on the road.
  • Fig. 1 shows a schematic structure of the headlight system for a vehicle
  • Fig. 2 a vehicle with the inventive
  • FIG. 3 shows a vehicle with the invention
  • FIG. 4 shows a vehicle with an inventive
  • a vehicle 1 is shown schematically with the headlight system according to the invention.
  • two headlamp units 2 a, 2 b are arranged, which are designed as bixenon headlights 2 a, 2 b.
  • an image detection unit 3b which is realized here as a CCD camera and detects the area of the road in the direction of travel in front of the vehicle 1.
  • the CCD camera 3b is obtained information about the road course, in particular the presence of curves and their radius of curvature detected road area. This information is forwarded via a signal line from the CCD camera 3b to the control unit 4.
  • the headlight system is additionally provided with a navigation device 3a as a sensor unit.
  • This navigation device 3a is able to determine its own position with the aid of a particularly integrated GPS system and based on this position on the basis of the navigation device 3a available map data information about the course or type of road on which the vehicle currently being determined.
  • the CCD camera 3b and the navigation device 3a to obtain information about the road width or the track width of the currently traveled lane, which in turn is provided as information on the road course of the control unit 4.
  • a control signal is generated by the control unit 4, which serves to control the headlight units 2a, 2b such that one of them is detected Street characteristic corresponding light characteristic with a given beam width 5, or orientation or horizontal opening angle of the light distribution is selected.
  • the CCD camera 3b here has the function of acting as a blend sensor, which has the task of detecting oncoming vehicles to bring the headlight system in the AbblendMap.
  • the inventive limitation of the headlight range which is chosen depending on the road, it is ensured that only a very small number of objects outside the road are illuminated by the headlight system, which means that no or only a few highly reflective objects in the beam of the headlight system outside get the road.
  • Such highly reflective articles when illuminated by the headlamp system of the vehicle 1, result in a strong flare sensed by the glare sensor and identified as an oncoming, illuminated vehicle, which in turn results in the headlamp assembly being placed in the dimming mode.
  • the vehicle 1 is shown schematically on a straight road.
  • the vehicle 1 drives straight ahead, in a corresponding manner, the headlight system is aligned so that it corresponds to the horizontal orientation of the light beam of the direction of travel and thus corresponds to the straight course of the busy road.
  • the lighting range 5 is chosen large.
  • the horizontal opening angle is chosen so that the light emitted by the headlight system light protrudes only to a small extent on the lateral profile of the road.
  • This selected light characteristic for the straight road course ensures that the driver can look far into the distance and be informed very early on oncoming vehicles or obstacles on the road. This is done without being distracted by too many illuminated, disturbing objects from the side area of the road.
  • the vehicle 1 is shown in a different driving situation.
  • the vehicle is in a slight left turn.
  • This driving situation is detected by the sensor unit 3a, 3b and accordingly the light characteristic of the headlight system of the vehicle 1 is selected accordingly.
  • the headlight range 5 is shortened relative to the driving situation in FIG.
  • the shortening is like that chosen that the light range 5 corresponds approximately to the free distance along the orientation of the vehicle 1 to the roadside.
  • the lighting range 5 goes a little beyond this distance.
  • the orientation and the horizontal opening angle of the emitted light beams, which cause the light characteristic of the headlight system correspond to those of the light characteristic of FIG. 2.
  • This reduction of the headlight range 5 ensures that even in different driving situations, such as the presence of a curve, the advantageous Effect can be achieved that only a few disturbing objects are illuminated outside the street and thus distract the driver from the attention to the road. As a result, a very safe driving behavior of the vehicle driver for a vehicle with the headlight system according to the invention is achieved.
  • a driving situation is shown, which is given by a tight left turn.
  • a light characteristic is selected by the vehicle 1, which is characterized by an even greater reduction of the beam range 5, by an additional widening of the horizontal opening angle and by a changed, horizontal orientation in the manner of cornering light.
  • This choice of light characteristics ensures that the driver is provided with a large number of relevant information about the course of the road and thus to all objects in the area of the road through the choice of the light characteristic, especially in the case of very tight bends or correspondingly in an intersection area Way the number of illuminated objects outside the road, which can distract the driver in an undesirable manner, is still reduced.
  • This reduction is achieved by the invention Change in the light characteristic. In particular, this is done by adjusting the beam range depending on the driving situation but also by the additional adjustment of the horizontal opening angle or by the changed horizontal orientation of the emitted light beam of the headlamp units.
  • the vehicle 1 shown in FIGS. 2, 3 and 4 shows the different choice of the different light characteristics of a headlight system for a vehicle in the different driving situations.
  • the headlight range is reduced, and this is supplemented with particularly tight curves or in particular in a crossing situation by the extension of the horizontal opening angle or by adjusting the orientation in the horizontal direction of the light beam.
  • the measure of the radius of curvature is determined by the sensor unit 3a, 3b in particular by the interaction of a CCD camera 3b with a navigation device 3a, in the one hand map data and thus also data on the road and on the other hand also an inertial measurement sensor a so-called gyrosensor for measuring the lateral acceleration are included.

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

Abstract

L'invention concerne un système de phare pour des véhicules (1), comportant au moins une unité phare (2a, 2b) permettant d'envoyer au moins un faisceau lumineux présentant différentes caractéristiques lumineuses. Une unité capteur (3a, 3b) détecte le tracé de la route en tant que valeur de situation de circulation et achemine ces informations à une unité de commande (4) qui sélectionne la caractéristique lumineuse en fonction du tracé de la route et entraîne ainsi une modification de la portée d'éclairage. De manière complémentaire, l'angle d'ouverture horizontal des faisceaux lumineux émis peut également être modifié. Ces modifications des caractéristiques lumineuses s'effectuent de sorte que la zone éclairée dans le sens de marche ne se trouve pas à l'extérieur du tracé de la route ou se trouve très faiblement à l'extérieur du tracé de la route.
PCT/EP2006/003273 2005-04-22 2006-04-10 Systeme de phare pour un vehicule Ceased WO2006111291A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005018921.0 2005-04-22
DE102005018921 2005-04-22
DE102005033841.0 2005-07-20
DE102005033841A DE102005033841A1 (de) 2005-04-22 2005-07-20 Scheinwerferanlage für ein Fahrzeug

Publications (1)

Publication Number Publication Date
WO2006111291A1 true WO2006111291A1 (fr) 2006-10-26

Family

ID=36648598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/003273 Ceased WO2006111291A1 (fr) 2005-04-22 2006-04-10 Systeme de phare pour un vehicule

Country Status (2)

Country Link
DE (1) DE102005033841A1 (fr)
WO (1) WO2006111291A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009021594A1 (fr) * 2007-08-11 2009-02-19 Daimler Ag Procédé et dispositif pour commander les feux de route d'un véhicule
WO2012034848A1 (fr) * 2010-09-13 2012-03-22 Robert Bosch Gmbh Dispositif et procédé de réglage de l'éclairage d'un véhicule dans des virages sans visibilité
US8511872B2 (en) 2010-08-17 2013-08-20 Varroccorp Holding Bv Predictive adaptive front lighting for a motor vehicle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009023827A1 (de) 2009-06-04 2010-12-09 Daimler Ag Verfahren zur Steuerung einer Scheinwerferanlage eines Fahrzeuges
DE102009052187A1 (de) * 2009-11-06 2011-05-12 Audi Ag Verfahren zum Betrieb eines prädiktiven Kurvenlichtsystems in einem Kraftfahrzeug und Kraftfahrzeug
DE102009057745A1 (de) * 2009-12-10 2011-06-16 Hella Kgaa Hueck & Co. Vorrichtung, Anordnung und Verfahren zum Steuern von Lichtverteilungen eines Frontscheinwerfers eines Kraftfahrzeugs mit vertikaler Hell-Dunkel-Grenze zur Reduktion von Lichtbewegungen bei kurvenreichen Streckenabschnitten
JP5623145B2 (ja) * 2010-06-10 2014-11-12 株式会社小糸製作所 車両用灯具システム、その制御装置および車両用灯具
JP2014519445A (ja) 2011-06-16 2014-08-14 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング 交通密度を使用して車両の少なくとも１つの前照灯を制御するための方法および制御器
JP5947682B2 (ja) * 2012-09-07 2016-07-06 株式会社デンソー 車両用前照灯装置
DE102013013564A1 (de) 2013-08-14 2015-02-19 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Kraftfahrzeugscheinwerfer
DE102022127073A1 (de) 2022-10-17 2024-04-18 HELLA GmbH & Co. KGaA Verfahren zur Steuerung eines Scheinwerfers
DE102023002503A1 (de) 2023-06-20 2024-12-24 Mercedes-Benz Group AG Verfahren zum Steuern eines Fernlichtassistenten und der Fernlichtassistent

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009021594A1 (fr) * 2007-08-11 2009-02-19 Daimler Ag Procédé et dispositif pour commander les feux de route d'un véhicule
US8511872B2 (en) 2010-08-17 2013-08-20 Varroccorp Holding Bv Predictive adaptive front lighting for a motor vehicle
WO2012034848A1 (fr) * 2010-09-13 2012-03-22 Robert Bosch Gmbh Dispositif et procédé de réglage de l'éclairage d'un véhicule dans des virages sans visibilité
CN103097196A (zh) * 2010-09-13 2013-05-08 罗伯特·博世有限公司 用于在不清晰的弯道中调整车辆的照明的装置和方法
US9227553B2 (en) 2010-09-13 2016-01-05 Robert Bosch Gmbh Device and method for adjusting the lighting of a vehicle in blind curves

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