WO2014041294A1 - Display device for a motor vehicle - Google Patents

Display device for a motor vehicle Download PDF

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Publication number
WO2014041294A1
WO2014041294A1 PCT/FR2013/052079 FR2013052079W WO2014041294A1 WO 2014041294 A1 WO2014041294 A1 WO 2014041294A1 FR 2013052079 W FR2013052079 W FR 2013052079W WO 2014041294 A1 WO2014041294 A1 WO 2014041294A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
vehicle
guide
motor vehicle
images
Prior art date
Application number
PCT/FR2013/052079
Other languages
French (fr)
Inventor
Sabine LANGLOIS
Geoffrey LEPINE
Christophe MAADED
Original Assignee
Renault S.A.S.
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 Renault S.A.S. filed Critical Renault S.A.S.
Priority to CN201380052993.0A priority Critical patent/CN104703833B/en
Priority to EP13776839.6A priority patent/EP2895346A1/en
Priority to RU2015113429A priority patent/RU2640678C2/en
Priority to BR112015005523A priority patent/BR112015005523A2/en
Priority to IN2632DEN2015 priority patent/IN2015DN02632A/en
Publication of WO2014041294A1 publication Critical patent/WO2014041294A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Arrangement of adaptations of instruments
    • B60K35/23—
    • B60K35/60—
    • B60K2360/336—
    • B60K2360/785—
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0141—Head-up displays characterised by optical features characterised by the informative content of the display
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features

Definitions

  • the present invention relates to a display device for a motor vehicle, and in particular a device adapted to reflect on the windshield of the vehicle information in the form of geometric images.
  • the driver assistance systems broadcast, when they detect an anomaly, a message to the driver in order to elicit a reaction from him.
  • These systems are for example implemented for the prevention of lane departure or to signal the proximity of another vehicle.
  • alert messages There are different types of alert messages. Broadcasting a visual message in the dashboard is not appropriate because the message is unlikely to be detected. It is also known to use audible messages, which may be appropriate in case of danger, and therefore if a quick reaction is expected. Nevertheless, the sound messages are unintelligible and often embarrassing.
  • the present invention aims to remedy these disadvantages.
  • the invention thus relates to a display device for a motor vehicle.
  • the device according to the invention comprises:
  • a light source capable of emitting light signals
  • a light guide able to guide the light signals through a plurality of openings of the guide, so as to reflect, on a surface of the vehicle, a plurality of bright images.
  • the device may further comprise a diffuser, able to diffuse the light signals coming from the light guide.
  • the diffusing material may be of translucent material.
  • the surface of the vehicle on which the bright images are reflected may be the windshield of the vehicle.
  • the light source may include a plurality of light emitters.
  • the openings of the light guide may be of geometric, alphanumeric, or pictogram-like section.
  • the light source can be arranged on a printed circuit.
  • the printed circuit can be connected to a power supply.
  • the printed circuit may be connected to control means of the light source.
  • the invention also relates to a motor vehicle comprising a device described above.
  • FIG. 1 illustrates a device according to the invention in perspective. exploded.
  • the display device 1 as illustrated in FIG. 1, comprises an electronic card 2, a light guide 3 and a diffuser 4.
  • the electronic card 2 comprises light emitters of the electroluminescent diode type 5.
  • the electronic card 2 is connected to a power supply via a link 21, and to an electronic network of the vehicle, typically a computer, by means of a link 22.
  • the vehicle's electronic network transmits the order to trigger the appropriate animation at the appropriate time.
  • the diodes 5, or any other appropriate light source send light signals towards the light guide 3.
  • the light guide 3 comprises openings 31, so as to guide the light signals and to form light images 6 of geometric shapes determined by the shape of the openings 31.
  • the openings 31 of the light guide 3 can for example be of geometric section such as circular, rectangular, square, trapezoidal, arc-shaped, or in the form of a dotted line, or according to other examples of alphanumeric section or the shape of a pictogram.
  • the light images formed in the light guide 3 are then directed towards the diffuser 4.
  • Luminous images 6 are thus reflected on a windshield 7.
  • the diffuser 4 makes it possible to broadcast the light signals coming from the light guide 3.
  • the diffusing 4 thus makes it possible to burst the luminous point coming from a diode 5 and to distribute the luminosity over the whole of the geometrical shape 6.
  • the windshield 7 is not always treated, it is possible that a double image is created.
  • the diffuser 4 allows to create a blur, so that the two images are mixed and thus a single image is perceived by the driver.
  • the blurring is adapted to a peripheral vision, because the eye is thus less tempted to be attracted by this image and to accommodate at its focal length.
  • the driver's gaze can remain on the road while he captures the transmitted message or messages.
  • the shape of the images 6 makes it possible to broadcast several images simultaneously when needed.
  • the diffuser 4 may be chosen from any translucent material.
  • the degree of translucency can be adjusted according to the desired blur / brightness compromise.
  • the device according to the invention can be positioned at any point of the dashboard of the vehicle, and not only facing the driver.
  • the reflection can be positioned on the transparent part of the windshield, but also on the windshield enamelling line.
  • the image formed is clear and it is not necessary to create a blur as in the case where the overhead projection is performed on the transparent portion of the windshield.
  • This projection on the blade has the advantage of not having to treat the windshield, as is the case when using a diffuser.

Abstract

The invention relates to a display device (1) for a motor vehicle, comprising a light source (5) and a light guide (3) that can guide the light signals through a plurality of openings (31) of the guide (3), in such a way as to reflect a plurality of images (6) on a surface (7) of the vehicle.

Description

DISPOSITIF D'AFFICHAGE POUR VEHICULE AUTOMOBILE  DISPLAY DEVICE FOR MOTOR VEHICLE
La présente invention a pour objet un dispositif d'affichage pour véhicule automobile, et notamment un dispositif apte à réfléchir sur le pare- brise du véhicule des informations sous forme d'images géométriques. The present invention relates to a display device for a motor vehicle, and in particular a device adapted to reflect on the windshield of the vehicle information in the form of geometric images.
Les systèmes d'aide à la conduite diffusent, lorsqu'ils détectent une anomalie, un message au conducteur afin de susciter une réaction de sa part. Ces systèmes sont par exemple mis en œuvre pour la prévention de sorties de voie ou pour signaler la proximité d'un autre véhicule.  The driver assistance systems broadcast, when they detect an anomaly, a message to the driver in order to elicit a reaction from him. These systems are for example implemented for the prevention of lane departure or to signal the proximity of another vehicle.
On connaît différents types de messages d'alerte. La diffusion d'un message visuel dans le tableau de bord n'est pas appropriée, car le message a peu de chances d'être détecté. Il est également connu d'utiliser des messages sonores, ce qui peut être approprié en cas de danger, et donc si une réaction rapide est attendue. Néanmoins, les messages sonores sont peu compréhensibles et souvent gênants.  There are different types of alert messages. Broadcasting a visual message in the dashboard is not appropriate because the message is unlikely to be detected. It is also known to use audible messages, which may be appropriate in case of danger, and therefore if a quick reaction is expected. Nevertheless, the sound messages are unintelligible and often embarrassing.
Le document US 2009/0231116 décrit un dispositif comprenant des diodes placées dans la planche de bord du véhicule pour créer des reflets qui sont sous forme de points et de lignes. Ces formes ne sont toutefois pas suffisamment suggestives du contenu du message. Le conducteur comprend qu'il doit réagir, mais il ne sait pas à quoi.  The document US 2009/0231116 describes a device comprising diodes placed in the dashboard of the vehicle to create reflections which are in the form of dots and lines. These forms, however, are not sufficiently suggestive of the content of the message. The driver understands that he has to react, but he does not know what.
La présente invention vise à remédier à ces inconvénients.  The present invention aims to remedy these disadvantages.
Elle propose en particulier un dispositif d'affichage pour véhicule automobile qui permette une transmission compréhensible des messages au conducteur.  It proposes in particular a display device for a motor vehicle that allows a comprehensible transmission of messages to the driver.
L'invention a ainsi pour objet un dispositif d'affichage pour véhicule automobile.  The invention thus relates to a display device for a motor vehicle.
Le dispositif selon l'invention comprend :  The device according to the invention comprises:
- une source lumineuse, apte à émettre des signaux lumineux, et - un guide de lumière, apte à guider les signaux lumineux à travers une pluralité d'ouvertures du guide, de manière à réfléchir, sur une surface du véhicule, une pluralité d'images lumineuses. Ainsi, grâce à la présence du guide de lumière, on peut former une pluralité d'images lumineuses de formes géométriques déterminées par la forme des ouvertures, ce qui permet de former un message clair et suggestif pour le conducteur. a light source, capable of emitting light signals, and a light guide, able to guide the light signals through a plurality of openings of the guide, so as to reflect, on a surface of the vehicle, a plurality of bright images. Thus, thanks to the presence of the light guide, a plurality of light images of geometric shapes determined by the shape of the openings can be formed, which makes it possible to form a clear and suggestive message for the driver.
Le dispositif peut comprendre en outre un diffusant, apte à diffuser les signaux lumineux issus du guide de lumière.  The device may further comprise a diffuser, able to diffuse the light signals coming from the light guide.
Le diffusant peut être en matériau translucide.  The diffusing material may be of translucent material.
La surface du véhicule sur laquelle sont réfléchies les images lumineuses peut être le pare-brise du véhicule.  The surface of the vehicle on which the bright images are reflected may be the windshield of the vehicle.
La source lumineuse peut comprendre une pluralité d'émetteurs de lumière.  The light source may include a plurality of light emitters.
Les ouvertures du guide de lumière peuvent être de section géométrique, alphanumérique, ou de la forme d'un pictogramme.  The openings of the light guide may be of geometric, alphanumeric, or pictogram-like section.
La source lumineuse peut être disposée sur un circuit imprimé.  The light source can be arranged on a printed circuit.
Le circuit imprimé peut être relié à une alimentation électrique.  The printed circuit can be connected to a power supply.
Le circuit imprimé peut être relié à des moyens de commande de la source lumineuse.  The printed circuit may be connected to control means of the light source.
L'invention a également pour objet un véhicule automobile comprenant un dispositif décrit ci-dessus.  The invention also relates to a motor vehicle comprising a device described above.
D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, et faite en référence à la figure 1 qui illustre un dispositif selon l'invention en perspective éclatée.  Other features and advantages of the present invention will emerge more clearly on reading the following description, given by way of illustrative and nonlimiting example, and with reference to FIG. 1 which illustrates a device according to the invention in perspective. exploded.
Le dispositif 1 d'affichage selon l'invention, tel qu'illustré à la figure 1, comprend une carte électronique 2, un guide de lumière 3, ainsi qu'un diffusant 4.  The display device 1 according to the invention, as illustrated in FIG. 1, comprises an electronic card 2, a light guide 3 and a diffuser 4.
La carte électronique 2 comprend des émetteurs de lumière du type diodes électroluminescentes 5. La carte électronique 2 est reliée à une alimentation électrique via une liaison 21, et à un réseau électronique du véhicule, typiquement un calculateur, à l'aide d'une liaison 22. Le réseau électronique du véhicule transmet l'ordre de déclencher l'animation appropriée au moment opportun. Les diodes 5, ou toute autre source lumineuse appropriée, envoient des signaux lumineux en direction du guide lumière 3. Le guide de lumière 3 comprend des ouvertures 31, de manière à guider les signaux lumineux et à former des images de lumière 6 de formes géométriques déterminées par la forme des ouvertures 31. Les ouvertures 31 du guide de lumière 3 peuvent par exemple être de section géométrique telle que circulaire, rectangulaire, carrée, trapézoïdale, en forme d'arc de cercle, ou en forme de pointillés, ou encore selon d'autres exemples de section alphanumérique ou de la forme d'un pictogramme. The electronic card 2 comprises light emitters of the electroluminescent diode type 5. The electronic card 2 is connected to a power supply via a link 21, and to an electronic network of the vehicle, typically a computer, by means of a link 22. The vehicle's electronic network transmits the order to trigger the appropriate animation at the appropriate time. The diodes 5, or any other appropriate light source, send light signals towards the light guide 3. The light guide 3 comprises openings 31, so as to guide the light signals and to form light images 6 of geometric shapes determined by the shape of the openings 31. The openings 31 of the light guide 3 can for example be of geometric section such as circular, rectangular, square, trapezoidal, arc-shaped, or in the form of a dotted line, or according to other examples of alphanumeric section or the shape of a pictogram.
Les images lumineuses formées dans le guide de lumière 3 sont ensuite dirigées vers le diffusant 4. Des images lumineuses 6 sont ainsi réfléchies sur un pare-brise 7. Le diffusant 4 permet de diffuser les signaux lumineux issus du guide de lumière 3. Le diffusant 4 permet ainsi d'éclater le point lumineux issu d'une diode 5 et de répartir la luminosité sur l'ensemble de la forme géométrique 6. En outre, le pare-brise 7 n'étant pas toujours traité, il se peut qu'une double image se crée. Le diffusant 4 permet de créer un floutage, de sorte que les deux images se mélangent et qu'ainsi une seule image est perçue par le conducteur. Le floutage est adapté à une vision périphérique, car l'œil est ainsi moins tenté d'être attiré par cette image et de s'accommoder à sa distance focale. Le regard du conducteur peut ainsi rester sur la route pendant qu'il capte le ou les messages transmis. La forme des images 6 permet en effet de diffuser plusieurs images simultanément en cas de besoin.  The light images formed in the light guide 3 are then directed towards the diffuser 4. Luminous images 6 are thus reflected on a windshield 7. The diffuser 4 makes it possible to broadcast the light signals coming from the light guide 3. The diffusing 4 thus makes it possible to burst the luminous point coming from a diode 5 and to distribute the luminosity over the whole of the geometrical shape 6. In addition, since the windshield 7 is not always treated, it is possible that a double image is created. The diffuser 4 allows to create a blur, so that the two images are mixed and thus a single image is perceived by the driver. The blurring is adapted to a peripheral vision, because the eye is thus less tempted to be attracted by this image and to accommodate at its focal length. The driver's gaze can remain on the road while he captures the transmitted message or messages. The shape of the images 6 makes it possible to broadcast several images simultaneously when needed.
Le diffusant 4 peut être choisi parmi tout matériau translucide. Le taux de translucidité pourra être réglé en fonction du compromis floutage/luminosité souhaité.  The diffuser 4 may be chosen from any translucent material. The degree of translucency can be adjusted according to the desired blur / brightness compromise.
Le dispositif selon l'invention peut être positionné à tout endroit de la planche de bord du véhicule, et pas seulement face au conducteur. Le reflet peut être positionné sur la partie transparente du pare-brise, mais également sur la ligne d'émaillage du pare-brise. Dans ce cas, l'image formée est nette et il n'est pas nécessaire de créer un floutage comme dans le cas où la rétroprojection s'effectue sur la partie transparente du pare-brise. On peut également envisager de projeter les images issues du dispositif selon l'invention sur une lame transparente ou partiellement transparente située en bas de pare-brise, ce qui permet ainsi de transmettre des messages dans la zone visuelle accessible au regard du conducteur, sans que celui-ci ait besoin de bouger la tête. Cette projection sur la lame a pour avantage de ne pas avoir à traiter le pare-brise, comme c'est le cas lorsqu'on utilise un diffusant. The device according to the invention can be positioned at any point of the dashboard of the vehicle, and not only facing the driver. The reflection can be positioned on the transparent part of the windshield, but also on the windshield enamelling line. In this case, the image formed is clear and it is not necessary to create a blur as in the case where the overhead projection is performed on the transparent portion of the windshield. It is also conceivable to project the images coming from the device according to the invention onto a transparent or partially transparent plate situated at the bottom of the windscreen, which thus makes it possible to transmit messages in the visual zone accessible to the driver, without he needs to move his head. This projection on the blade has the advantage of not having to treat the windshield, as is the case when using a diffuser.

Claims

REVENDICATIONS
1. Dispositif (1) d'affichage pour véhicule automobile, caractérisé en ce qu'il comprend :  1. Display device (1) for a motor vehicle, characterized in that it comprises:
- une source lumineuse (5), apte à émettre des signaux lumineux, et a light source (5) able to emit light signals, and
- un guide de lumière (3), apte à guider les signaux lumineux à travers une pluralité d'ouvertures (31) du guide (3), de manière à réfléchir, sur une surface (7) du véhicule, une pluralité d'images lumineuses (6). a light guide (3), able to guide the light signals through a plurality of openings (31) of the guide (3), so as to reflect, on a surface (7) of the vehicle, a plurality of images bright (6).
2. Dispositif (1) selon la revendication 1, caractérisé en ce qu'il comprend en outre un diffusant (4), apte à diffuser les signaux lumineux issus du guide de lumière (3). 2. Device (1) according to claim 1, characterized in that it further comprises a diffuser (4) capable of diffusing the light signals from the light guide (3).
3. Dispositif (1) selon la revendication 2, caractérisé en ce que le diffusant (4) est en matériau translucide. 3. Device (1) according to claim 2, characterized in that the diffuser (4) is translucent material.
4. Dispositif (1) selon l'une des revendications 1 à 3, caractérisé en ce que la surface du véhicule sur laquelle sont réfléchies les images lumineuses est le pare-brise (7) du véhicule. 4. Device (1) according to one of claims 1 to 3, characterized in that the vehicle surface on which the light images are reflected is the windshield (7) of the vehicle.
5. Dispositif (1) selon l'une des revendications 1 à 4, caractérisé en ce que la source lumineuse (5) comprend une pluralité d'émetteurs de lumière (5). 5. Device (1) according to one of claims 1 to 4, characterized in that the light source (5) comprises a plurality of light emitters (5).
6. Dispositif (1) selon l'une des revendications 1 à 5, caractérisé en ce que les ouvertures (31) du guide de lumière (3) sont de section géométrique, alphanumérique, ou de la forme d'un pictogramme. 6. Device (1) according to one of claims 1 to 5, characterized in that the openings (31) of the light guide (3) are of geometric section, alphanumeric, or in the form of a pictogram.
7. Dispositif (1) selon l'une des revendications 1 à 6, caractérisé en ce que la source lumineuse (5) est disposée sur un circuit imprimé (2). 7. Device (1) according to one of claims 1 to 6, characterized in that the light source (5) is disposed on a printed circuit (2).
8. Dispositif (1) selon la revendication 7, caractérisé en ce que le circuit imprimé (2) est relié à une alimentation électrique. 8. Device (1) according to claim 7, characterized in that the printed circuit (2) is connected to a power supply.
9. Dispositif (1) selon la revendication 7 ou 8, caractérisé en ce que le circuit imprimé (2) est relié à des moyens de commande de la source lumineuse (5). 9. Device (1) according to claim 7 or 8, characterized in that the printed circuit (2) is connected to control means of the light source (5).
10. Véhicule automobile, caractérisé en ce qu'il comprend un dispositif (1) selon l'une des revendications 1 à 9. 10. Motor vehicle, characterized in that it comprises a device (1) according to one of claims 1 to 9.
PCT/FR2013/052079 2012-09-13 2013-09-11 Display device for a motor vehicle WO2014041294A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201380052993.0A CN104703833B (en) 2012-09-13 2013-09-11 For the display device of motor vehicles
EP13776839.6A EP2895346A1 (en) 2012-09-13 2013-09-11 Display device for a motor vehicle
RU2015113429A RU2640678C2 (en) 2012-09-13 2013-09-11 Visual alarm device for motor vehicle
BR112015005523A BR112015005523A2 (en) 2012-09-13 2013-09-11 display device for automotive vehicle, and, automotive vehicle
IN2632DEN2015 IN2015DN02632A (en) 2012-09-13 2013-09-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1258619 2012-09-13
FR1258619A FR2995410B1 (en) 2012-09-13 2012-09-13 DISPLAY DEVICE FOR MOTOR VEHICLE

Publications (1)

Publication Number Publication Date
WO2014041294A1 true WO2014041294A1 (en) 2014-03-20

Family

ID=47505043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2013/052079 WO2014041294A1 (en) 2012-09-13 2013-09-11 Display device for a motor vehicle

Country Status (7)

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EP (1) EP2895346A1 (en)
CN (1) CN104703833B (en)
BR (1) BR112015005523A2 (en)
FR (1) FR2995410B1 (en)
IN (1) IN2015DN02632A (en)
RU (1) RU2640678C2 (en)
WO (1) WO2014041294A1 (en)

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US20070210906A1 (en) * 2004-04-06 2007-09-13 Peter Knoll Signaling Device For Displaying Warning And/Or Informational Alerts In Vehicles
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Also Published As

Publication number Publication date
BR112015005523A2 (en) 2017-08-08
FR2995410A1 (en) 2014-03-14
FR2995410B1 (en) 2014-08-29
CN104703833B (en) 2018-06-01
IN2015DN02632A (en) 2015-09-18
CN104703833A (en) 2015-06-10
RU2640678C2 (en) 2018-01-11
EP2895346A1 (en) 2015-07-22
RU2015113429A (en) 2016-11-10

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