WO2017148657A1 - Procédé de production d'une fonction lumineuse pour véhicule et moyen d'éclairage associé - Google Patents

Procédé de production d'une fonction lumineuse pour véhicule et moyen d'éclairage associé Download PDF

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Publication number
WO2017148657A1
WO2017148657A1 PCT/EP2017/052583 EP2017052583W WO2017148657A1 WO 2017148657 A1 WO2017148657 A1 WO 2017148657A1 EP 2017052583 W EP2017052583 W EP 2017052583W WO 2017148657 A1 WO2017148657 A1 WO 2017148657A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
exit surface
light exit
intensity
emission
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/EP2017/052583
Other languages
German (de)
English (en)
Inventor
Christian Ziehl
Sebastian Hans
Oliver Jerome Renz de Font
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of WO2017148657A1 publication Critical patent/WO2017148657A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
    • B60Q1/381—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps with several light sources activated in sequence, e.g. to create a sweep effect

Definitions

  • the present invention relates to a method for providing a light function for a vehicle by means of a lighting device having a plurality of light sources, to each of which a light exit surface is assigned, via which light can be emitted to the outside.
  • the light exit surfaces of the light sources adjoin one another in such a way that they are arranged in a line.
  • the light sources are switched on one after the other in such a way that light in the form of a running light is emitted along the line in the light exit surfaces.
  • the running light is initially in a switch-on a light emission at a first
  • the invention relates to a method for providing a light function of a
  • the invention relates to a lighting device for a vehicle for
  • the illumination device comprises a plurality of light sources, to each of which a light exit surface is assigned, via which light to the outside
  • the illumination device furthermore comprises a control unit, with which the light sources can be activated in such a way that light is emitted in the form of a running light along the line in the light exit surfaces, in which case initially a light emission occurs at a first light exit surface in a switch-on phase is turned on and the light emission via this first light exit surface continues until the end of the switch-on and then successively light emissions are switched on each adjacent light exit surfaces, with a switched light emission continues until the end of the switch-on.
  • the lighting devices of a vehicle have the task to illuminate the environment of the vehicle, especially in the dark and poor visibility, make the vehicle for other road users better recognizable and certain
  • the direction indicator which is usually designed as a flashing light, is used, for example, to make other road users aware that the driver of the vehicle wants to make a change in direction or just makes.
  • road safety it is important for other road users to be able to easily detect the light emission of a vehicle's lighting device and to easily grasp the assigned function.
  • direction indicators it is important for direction indicators to allow other road users to quickly detect a planned change of direction of the vehicle and thus be able to react quickly to such a change of direction.
  • DE 10 201 1 1 19 231 A1 discloses a method for driving a motor vehicle light
  • a light guide of the illumination device is designed for this purpose such that the light intensity distribution of the light emerging at the exit surface of at least one light source has a gradient in the propagation direction of the light of the respective light source. Furthermore, a
  • Control device for the light sources provided such that when turning on the
  • Lighting device the light sources are activated in a predetermined Einschaltzeitintervall and thereby the brightness of at least one light source is changed based on a ramp and / or stepped course until reaching a predetermined brightness value.
  • the present invention is based on the object, a method and a
  • this object is achieved by a method having the features of claim 1, by a method having the features of claim 13 and a lighting device solved with the features of claim 14.
  • a light function for a vehicle is provided by means of a lighting device with a plurality of light sources.
  • the light sources are each assigned a light exit surface over which light can be emitted to the outside.
  • the light exit surfaces of the light sources adjoin one another so that they are arranged in a line.
  • the light sources are so
  • Light emission is turned on at a first light exit surface and the
  • the method is characterized in that, in order to provide the light function, the light intensity emitted via a light exit surface is reduced when the light emission via an adjacent light exit surface
  • the running light of the method according to the invention thus not only adjacent light exit surfaces are illuminated successively.
  • a further dynamic effect is produced by the fact that once a light exit surface is switched on, it does glow until the end of the switch-on phase, but with a reduced intensity as soon as the light emission has been switched on via a new, adjacent light exit surface.
  • the light effect of the running light of the method according to the invention thus resembles the appearance of a tail of a comet or a shooting star, in which the greatest light intensity travels on a line and against the direction of the light intensity decreases, but does not go out over a longer period.
  • Perceive illumination device and assign the light function has been significantly shortened. Other road users will thus be more responsive to the light emission of the
  • Lighting device attentive.
  • this increases the traffic safety.
  • the light emission at the first light exit surface is first switched on in the switch-on phase, so that light is first emitted at a first intensity until the light emission is switched on via an adjacent second light exit surface.
  • light of the first intensity is first emitted via this second light exit surface and the light emission via the first light exit surface is reduced so that light with a reduced second light intensity is emitted.
  • the front light exit surface of the running light is always brightly illuminated in each case and the light emission of the adjacent rear light exit surface of the running light is lowered to the second light intensity. This also improves the visibility of the light emission of the illumination device advantageously.
  • a third light exit surface which is adjacent in the same direction to the second one
  • Light exit surface is, as the second light exit surface adjacent to the first
  • Light exit surface is first radiated via this third light exit surface light with the first intensity and the second light exit surface light is emitted with a reduced third light intensity.
  • the second and the third light intensity can be the same size, for example. In this case, there is an identical reduction in the light intensity of the rear light exit surfaces of the running light. As a result, the movement of the light exit surface, which emits light with the first light intensity, is advantageously emphasized.
  • Light exit surface of the line is switched on.
  • the reduced light intensities of the rear light exit surfaces of the running light remain at the same value, thereby advantageously emphasizing the movement of the light exit surface which emits light with the first light intensity.
  • the value of the third light intensity is greater than the value of the second light intensity.
  • the reduction of the light intensity, starting from the light exit surface over which light is emitted with the first light intensity is at least three stages, so that advantageously a smoother transition to reduced light intensities is brought about.
  • the perceptibility of the light emission via the illumination device can be further improved.
  • the value of the fourth light intensity is in particular smaller than the value of the third light intensity, but greater than the value of the second light intensity. This can advantageously an even greater gradation of light fall in the running light
  • Light intensity is emitted, and the light emission via the second light-emitting surface is further reduced, so that light is emitted with the reduced second light intensity. Also by this measure can advantageously the perceptibility of the
  • Light emission of the lighting device can be further improved.
  • successive light emissions are switched on at respectively adjacent light exit surfaces until a light emission via the last light exit surface of the line is switched on, and after switching on the light emission via the last light exit surface the light emission is reduced via the penultimate light exit surface. After the light emission over the last light exit surface was switched on and the light intensity of the
  • Light exit surfaces is the same and remains unchanged. This last time interval advantageously ensures that the illumination device is well perceived by the high overall intensity of the light emission.
  • the change in the light intensity emitted via a light exit surface takes place continuously.
  • the light intensity is considered as a function of time.
  • the function is continuous, if sufficiently small changes in the time to any small changes in the function value, that is, the
  • the light intensity thus has no cracks, especially no noticeable cracks on.
  • a very smooth animation for the running light of the method according to the invention can be generated. This advantageously improves the perceptibility of the light emission for other road users.
  • the invention further relates to a method for providing a light function of a direction indicator for a vehicle.
  • the method described above is performed in a switch-on. Then be
  • control unit controls the light sources in such a way that the light intensity emitted via a light exit surface is reduced when the light emission has been switched on via an adjacent light exit surface.
  • the illumination device according to the invention is in particular designed to carry out the method according to the invention described above. It therefore also has all the advantages of this method.
  • the light sources are light-emitting diodes which are arranged next to one another on a line.
  • a vehicle has two lighting devices according to the invention in each case in front and behind.
  • the running light thereby runs from a vehicle-side side of the illumination device to a vehicle-side side of the illumination device.
  • the first light exit surface is in particular the furthest inside
  • FIG. 1 shows a rear view of a vehicle, which has a lighting device according to the invention on the right and left,
  • FIG. 2 shows an embodiment of the illumination device according to the invention
  • FIG. 3 shows the temporal development of the light emission via the light exit surfaces in one exemplary embodiment of the method according to the invention.
  • Lighting device 2 according to the invention explained.
  • the lighting device is in this case a direction indicator.
  • Lighting device 2 is arranged. In the same way, corresponding lighting devices 2 can also be arranged on the front of the vehicle.
  • the lighting device 2 has an elongated shape, which is arranged horizontally aligned in the vehicle 1.
  • a plurality of light exit surfaces 3-1 to 3-7 can be seen from the illumination device 2. These light exit surfaces 3-1 to 3-7 can be provided, for example, by opaque lenses. If light hits the light exit surfaces 3-1 to 3-7 from the inside, a homogeneous light emission to the outside, which is visible to the observer from the outside, results at the corresponding light exit surface 3-1 to 3-7. The intensity of the light emission from the light exit surfaces 3-1 to 3-7 depends on the light intensity with which light from the inside hits the light exit surfaces 3-1 to 3-7.
  • Each of the light exit surfaces 3-1 to 3-7 is associated with a respective light source 4-1 to 4-7.
  • the light exit surface 3-1 associated with the light source 4-1, the light exit surface 3-2 the Assigned light source 4-2 and corresponding to the other light sources 4-3 to 4-7 densities
  • the light source 4-1 is provided by a light-emitting diode or a light-emitting diode array with a plurality of light-emitting diodes. The light emission of the light source 4-1 impinges only on the light exit surface 3-1 and is emitted via this to the outside.
  • the light sources 4-2 to 4-7 are also provided by light-emitting diodes or light-emitting diode arrays, the light emission of one of the light sources 4-2 to 4-7 striking only the light exit surface 3-2 to 3-7 associated therewith and from there to the outside is emitted.
  • the light sources 4-1 to 4-7 are coupled to a control unit 5. They can be controlled by the control unit 5 variable in time so that they emit light with different light intensities. In this way, via the control unit 5, the intensity of the light emission via the light exit surfaces 3-1 to 3-7 are controlled temporally and spatially variable.
  • the light exit surfaces 3-1 to 3-7 adjoin one another so that they are arranged on a line, in the present exemplary embodiment on a horizontally oriented path, with the light exit surface 3-1 toward the center of the vehicle 1 is adjacent and the light exit surface 3-7 is arranged at the outside of the vehicle 1.
  • Light exit surfaces 3-1 to 3-7 not arranged on a straight line, but on an arbitrarily different shaped line.
  • the line can be open or closed
  • the light sources 4-1 to 4-7 and the light exit surfaces 3-1 to 3-7 are adjacent to each other so that each light source 4-1 to 4-7 and each light exit surface 3-1 to 3-7, an adjacent light source 4-1 to 4-7 and light exit surface 3-1 to 3-7 has.
  • the initial light source 4-1 and the end light source 4-7 or the initial light exit surface 3-1 and the end light exit surface 3-7 each have only one adjacent light source 4-2, 4-6.
  • the method may be performed by the illumination device 2 described above.
  • FIG. 3 shows the temporal developments of the light intensities which are emitted via the light exit surfaces 3-1 to 3-7. If the lighting device 2 is switched off, no light emission takes place via the light sources 4-1 to 4-7, so that the light intensity l 0 emitted via the light exit surfaces 3-1 to 3-7 is equal to zero. Light which is reflected at these light exit surfaces 3-1 to 3-7 or passes through reflections from the inside through the light exit surfaces 3-1 to 3-7 is neglected here.
  • control unit 5 controls the light source 4-1 in such a way that via the
  • Light exit surface 3-1 light is emitted with a first light intensity L-i. This is the beginning of the switch-on phase of the direction indicator. After expiration of a defined
  • Time interval controls the control unit 5, the light source 4-2 so that on the
  • Light exit surface 3-2 light emitted at the first intensity ⁇ i. At the same time, after the light emission is switched on via the light exit surface 3-2, the light emission via the light exit surface 3-1 is reduced so that light with a reduced light intensity l 2 is emitted.
  • the control unit 5 controls the light source 4-3 so that on the light exit surface 3-3 light of intensity ⁇ i is emitted. Furthermore, after switching on the light source 4-3, the intensity of the light emission via the light exit surface 3-2 is reduced to the intensity l 3 .
  • the intensity l 3 is smaller than the intensity ⁇ i but greater than the intensity l 2 . Furthermore, light of intensity l 2 is emitted via the light exit surface 3-1.
  • the light source 4-4 is switched on, so that over the light exit surface 3-4 light of the intensity li is emitted.
  • the intensity which is emitted via the light exit surface 3-3 is reduced so that light of the intensity l 3 is emitted via it.
  • the intensity of the light which is emitted via the light exit surface 3-2 is reduced to an intensity l 4 .
  • the intensity l 4 is less than the intensity l 3 , but greater than the intensity l 2 .
  • the light intensities may be as follows, for example: 100%; l 3 : 90%; l 4 : 80%; 2 : 50%; l 0 : 0%.
  • the light exit surfaces 3-5 to 3-7 always emit light of intensity ⁇ i. Their light intensity then decreases as soon as an adjacent light exit surface has been switched on, as shown in FIG. Once switched on, the light exit surface 3-1 to 3-7 then emits light at the time t 2 until the end of the switch-on phase. After the last light exit surface 3-7 was switched on and the intensity of the
  • the time interval from time t 0 to t- ⁇ is in a range of 150 milliseconds to 200 milliseconds.
  • the light exit surfaces 3-1 to 3-7 radiate uniformly light of the intensity ⁇ i until the end of the switch-on phase at the instant t 2 .
  • the light emission at the first light exit surface 3-1 is turned on in the switch-on until the time t- ⁇ as in the embodiment described above, first. Successively, the light emanations are then switched on via the light exit surfaces 3-1 to 3-7, as in the previous
  • Embodiment has been described. After switching on the light emission via one of the light exit surfaces 3-2 to 3-7, the light emission is reduced via the adjacent, previously switched on light exit surface 3-1 to 3-6 in their light intensity. With this reduced light intensity, this light emission surface 3-1 to 3-6 then radiates light with the constantly reduced intensity, eg with the intensity l 2 , until the time t i. At time ti, the light emission of all the light exit surfaces 3-1 to 3-7 is then at the maximum
  • Provision of a direction indicator is then turned off all the light sources 4-1 to 4-7 to be turned on again after a time interval as described above.
  • the change between different intensities for the light emission via the light exit surfaces 3-1 to 3-6 can be abrupt, ie, discontinuous. In the present exemplary embodiments, however, the change in the light intensities emitted via one of the light exit surfaces 3-1 to 3-6 takes place continuously. Within a relatively short time interval, there is thus a continuous transition from an output light intensity to a final light intensity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention concerne un procédé de production d'une fonction lumineuse, destiné à un véhicule (1), à l'aide d'un moyen d'éclairage (2) comportant une pluralité de sources de lumière (4-1 à 4-7) à chacune desquelles est associée une surface de sortie de lumière (3-1 à 3-7) permettant à la lumière de rayonner vers l'extérieur. Les surfaces de sortie de lumière (3-1 à 3-7) des sources de lumière (4-1 à 4-7) sont adjacentes les unes aux autres de sorte qu'elles sont disposées sur une ligne. Dans le procédé, les sources de lumière (4-1 à 4-7) sont excitées successivement de sorte que, au niveau des surfaces de sortie de lumière (3-1 à 3-7), la lumière est rayonnée le long de la ligne sous la forme d'un chenillard. Dans le chenillard, une émission de lumière est tout d'abord générée dans une phase de génération au niveau d'une première surface de sortie de lumière (3-1) et l'émission de lumière au niveau de cette première surface de sortie de lumière (3-1) dure jusqu'à la fin de la phase de génération. Ensuite, les émissions de lumière sont successivement générées au niveau des surfaces de sortie de lumière adjacentes respectives (3-2 à 3-7). Une émission de lumière générée dure jusqu'à la fin de la phase de génération. Le procédé de l'invention est caractérisé en ce que, pour produire la fonction lumineuse, l'intensité lumineuse rayonnée au niveau d'une surface de sortie de lumière (3-1 à 3-7) est réduite lorsque l'émission de lumière a été générée au niveau d'une surface de sortie de lumière adjacente (3-1 à 3-7). En outre, l'invention concerne un procédé de production d'une fonction lumineuse d'un indicateur de direction de roulement et d'un dispositif d'éclairage (2) destinés à un véhicule (1).
PCT/EP2017/052583 2016-03-01 2017-02-07 Procédé de production d'une fonction lumineuse pour véhicule et moyen d'éclairage associé Ceased WO2017148657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016203296.8 2016-03-01
DE102016203296.8A DE102016203296A1 (de) 2016-03-01 2016-03-01 Verfahren zum Bereitstellen einer Lichtfunktion für ein Fahrzeug und Beleuchtungseinrichtung hierfür

Publications (1)

Publication Number Publication Date
WO2017148657A1 true WO2017148657A1 (fr) 2017-09-08

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PCT/EP2017/052583 Ceased WO2017148657A1 (fr) 2016-03-01 2017-02-07 Procédé de production d'une fonction lumineuse pour véhicule et moyen d'éclairage associé

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WO (1) WO2017148657A1 (fr)

Families Citing this family (4)

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FR3074114B1 (fr) * 2017-11-27 2019-10-18 Psa Automobiles Sa Systeme de feux de signalisation arriere adaptatifs de vehicule automobile
FR3074743B1 (fr) * 2017-12-13 2019-10-25 Psa Automobiles Sa Systeme de feux de signalisation arriere adaptatifs de vehicule automobile
DE102019200202A1 (de) * 2019-01-10 2020-07-16 Osram Gmbh Signalgebermodul für ein kraftfahrzeug, signalgeberanordung für ein kraftfahrzeug und verfahren zum betreiben einer signalgeberanordung
DE102023203176A1 (de) * 2023-04-05 2024-10-10 Stellantis Auto Sas Optische Signalvorrichtung zum Anzeigen einer Fahrtrichtungsänderung für ein Kraftfahrzeug und Verfahren zur Ansteuerung einer optischen Signalvorrichtung

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WO2007138713A1 (fr) * 2006-05-29 2007-12-06 Yoshiaki Takida Feu rouge arrière à fonctionnement d'éclairage segmenté
US20110260616A1 (en) * 2010-04-22 2011-10-27 Ford Global Technologies, Llc Vehicle exterior lamp
DE102011119231A1 (de) 2011-11-23 2013-05-23 Audi Ag Kraftfahrzeugleuchte, Kraftwagen und Verfahren zum Betreiben einer Kraftfahrzeugleuchte
DE102012222684A1 (de) 2012-12-11 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft Beleuchtungseinrichtung für ein Kraftfahrzeug
US20150158416A1 (en) * 2013-12-11 2015-06-11 Sl Corporation Turn signal lamp for vehicle

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US8378781B1 (en) * 2009-04-17 2013-02-19 John W. Peterson Animated light string system
US20100302799A1 (en) * 2009-05-29 2010-12-02 Nokia Corporation Moving light effect using a light-guide structure

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
WO2007138713A1 (fr) * 2006-05-29 2007-12-06 Yoshiaki Takida Feu rouge arrière à fonctionnement d'éclairage segmenté
US20110260616A1 (en) * 2010-04-22 2011-10-27 Ford Global Technologies, Llc Vehicle exterior lamp
DE102011119231A1 (de) 2011-11-23 2013-05-23 Audi Ag Kraftfahrzeugleuchte, Kraftwagen und Verfahren zum Betreiben einer Kraftfahrzeugleuchte
DE102012222684A1 (de) 2012-12-11 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft Beleuchtungseinrichtung für ein Kraftfahrzeug
US20150158416A1 (en) * 2013-12-11 2015-06-11 Sl Corporation Turn signal lamp for vehicle

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