WO2024052003A1 - Arrangement comprising a camera in a front region of the roof of a motor vehicle - Google Patents

Arrangement comprising a camera in a front region of the roof of a motor vehicle Download PDF

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Publication number
WO2024052003A1
WO2024052003A1 PCT/EP2023/070671 EP2023070671W WO2024052003A1 WO 2024052003 A1 WO2024052003 A1 WO 2024052003A1 EP 2023070671 W EP2023070671 W EP 2023070671W WO 2024052003 A1 WO2024052003 A1 WO 2024052003A1
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WO
WIPO (PCT)
Prior art keywords
camera
plate
roof
rotation
seat
Prior art date
Application number
PCT/EP2023/070671
Other languages
French (fr)
Inventor
Patrice Montfort
Sergio PINTO
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.
Publication of WO2024052003A1 publication Critical patent/WO2024052003A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/02—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in position
    • B60J3/0204—Sun visors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/59—Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
    • G06V20/597—Recognising the driver's state or behaviour, e.g. attention or drowsiness
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18—Eye characteristics, e.g. of the iris
    • G06V40/19—Sensors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0028—Ceiling, e.g. roof rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0035—Sun visors

Definitions

  • the invention relates to camera installations arranged in the passenger compartment of a motor vehicle and which must scan the eyes of the driver of the vehicle.
  • the use of cameras to monitor whether drivers fall asleep at the wheel is becoming more and more common.
  • a camera must make it possible to detect the first ocular signs of falling asleep, and therefore be able to scan the driver's eyes constantly.
  • the camera must be able to do this scanning for drivers of different sizes, and therefore also for different front-to-back positions of the driver's seat.
  • a camera scanning both eyes can also potentially be used for other purposes such as taking selfies.
  • Patent application CN107379935 discloses a sun visor comprising a camera which is fixed on a support placed on an upper and lateral part of the sun visor plate in the passenger compartment of a motor vehicle.
  • the installation of the camera is not particularly studied in relation to a problem of scanning the driver's eyes, especially since the camera is hidden when the plate is folded towards the ceiling of the vehicle's passenger compartment.
  • a camera of an anti-sleep system which must respect an effective scanning of the driver's eyes, in particular for safety purposes by detecting the first ocular signs of the driver falling asleep at the wheel, Day and night.
  • the invention provides an arrangement comprising a camera, capable of scanning the eyes of a person seated on a seat, in particular of a driver, in the passenger compartment of a motor vehicle.
  • Said arrangement in an area facing the seat in question, comprises a sun visor comprising a plate, two lateral supports of said plate, and two lateral axes of rotation secured to the plate and connecting said plate and respectively said lateral supports, the plate being mobile in rotation between a folded position and an deployed position relative to a fictitious axis of rotation passing through said two lateral axes of rotation.
  • Said sun visor plate comprises a notch located between the two lateral supports of the plate, and said camera being installed in a through hole in the interior trim of the roof, in the front area of the roof and at the front of said notch.
  • front roof area means an area of the roof proximal to the top of the windshield and which includes the roof structure as well as the interior trim of the roof.
  • said notch is located between the two lateral axes of rotation and comprises a part of the fictitious axis of rotation of the plate, this part being outside the two lateral axes of rotation.
  • said lateral supports of said plate are fixed in the interior trim of the roof.
  • said camera is installed in the area of the front cross member of the roof (proximal to the top of the windshield).
  • the camera is oriented obliquely in the longitudinal axis of the seat in question, in particular towards the driver's seat.
  • the camera is oriented, in a longitudinal direction, towards the head of a mannequin seated (actually or virtually) on the seat considered, and said seat being positioned at 50% of its travel of longitudinal translation.
  • the camera is fixed by means of pinching the interior roof trim.
  • said means for pinching the interior roof trim comprise a trim applied to the face of the interior roof trim on the interior side of the passenger compartment, and a support for the trim disposed between the roof structure and the face of the roof. said trim on the side of the roof structure.
  • said hubcap supports said camera. Preferably it surrounds at least the visible side (in the passenger compartment) of the camera.
  • the camera is fixed directly to the front crossbar of the roof.
  • said camera is a camera of an anti-sleep system, capable of detecting ocular signs of falling asleep of a person, in particular of the driver of the vehicle.
  • Said camera can also be part of a selfie-taking system.
  • the invention also relates to a motor vehicle comprising, in its passenger compartment, an arrangement comprising a camera capable of scanning the eyes of a person, in particular of the driver of the vehicle, seated on a seat facing a sun visor, such as as described previously.
  • FIG. 1 illustrates, in a front view, a sun visor of a motor vehicle and the installation of a camera which includes an arrangement in the front area of the roof of a motor vehicle according to one embodiment of the invention ;
  • FIG. 2 illustrates, schematically, an arrangement comprising a camera in the front area of the roof of a motor vehicle according to [Fig. 1 ] ;
  • FIG. 3 illustrates, schematically, in a side view and in a longitudinal section at the level of the camera, an arrangement comprising a camera and a sun visor in the front area of the roof of a motor vehicle according to [Fig. 1 ] and [Fig. 2], and its effect on the driver's vision in relation to the sun visor, in the deployed or folded position, by representation of the head of size mannequins different, for different longitudinal positions (front-rear) of the driver's seat slides;
  • FIG. 4 illustrates, schematically and for comparison, in a side view and in a longitudinal section, the installation of a sun visor of the prior art in a passenger compartment without a camera and its effect on the driver's vision, in deployed or folded position, by representation of the heads of mannequins of different sizes, for different longitudinal positions (front-rear) of the driver's seat slides.
  • Figure 1 represents a sun visor 5 of a motor vehicle and the installation of an assembly 4 comprising a camera of an anti-sleep system 40 which comprises an arrangement according to the invention.
  • the sun visor and camera installation are located in the front area of the roof and on the driver's side of the vehicle to monitor the driver's eye signs of falling asleep.
  • the sun visor 5 comprises a plate shown in a front view from the driver's seat in the passenger compartment, in the deployed and vertical position.
  • the sun visor also includes a mirror 54 integrated into the plate which is closed by a lifting cover.
  • the plate 50 of the sun visor 5 is supported by a first support 51 located laterally on the left, and by a second support 52, located laterally on the right (eccentric transversely to the right).
  • the sun visor further comprises a first axis of rotation 510 secured to the left side support 51 and to the plate 50, and it comprises a second axis of rotation 520 secured to the plate 50 and to the second support on the right 52.
  • Said plate is movable in rotation around a fictitious transverse axis 500 passing through said first and second lateral axes of rotation 510, 520, between the deployed position 50' and the folded position 50” (Fig. 2 or Fig. 3).
  • Said lateral supports 51, 52 are fixed in the interior trim 3 of the roof.
  • the plate 50 of the sun visor can be maneuvered towards the left side window of the vehicle by separating the second axis 520 from the right support 52, and by rotating it towards the window around the left axis of rotation 510.
  • the camera 40 is arranged at the front (direction folded down 50” retracting it towards the ceiling of the passenger compartment, in other words towards the interior roof trim 3, or in the deployed position 50'.
  • the notch 53 is located between the two side supports 51, 52 of the plate 50 of the sun visor. It passes over the fictitious axis of rotation 500 of the plate 50, outside the two lateral axes of rotation 510, 520.
  • This location of the camera has the advantage of being able to retain the original location of the sun visor without an indentation (Fig. 4).
  • the notch 53 is more or less centered so that the camera 40 is oriented obliquely towards the driver's seat, in the longitudinal axis (X direction) of the seat, for a driver seated on the driver's seat .
  • the camera is oriented, in a longitudinal direction (direction explained further with reference to Figure 3.
  • the camera 40 can thus scan the eyes of a driver whether the sun visor plate is in the deployed position 50', vertically in the passenger compartment, or in the folded position 50", the camera lens always being positioned at the front of the notch 53 of the plate 50.
  • the camera 40 is fixed by pinching the (inner) trim 3 of the roof 1, at the front of the notch 53 of the sun visor.
  • the camera 40 is arranged at the level of a through hole 30 made in the trim 3 of the roof 1, and where it is supported by a hubcap 41.
  • This trim 41 surrounds the camera 40 along the passenger compartment side face (interior side) of the interior roof trim 3.
  • the trim 41 is itself attached to a support 42 placed on the roof side face of the trim 3, it that is to say between the roof structure and the trim 3.
  • the trim 3 is therefore pinched between the hubcap 41 and the support 42 of the hubcap.
  • the support 42 of the hubcap is more particularly located at the level of the front crosspiece 16 of the roof 1 which is proximal to the upper edge of the windshield 2.
  • the camera 40 can be fixed according to another method of fixing, in particular by fixing it directly to the front cross member 16 of the roof, therefore without pinching the headliner 3. It is known to carry out tests of the effectiveness of a sun visor of a motor vehicle by actually or virtually installing a mannequin seated on the driver's seat facing the sun visor, for a given driver's seat slide position, a medium-sized dummy corresponding to a seat slide position of 50%, and complementary driver's seat slide positions of 5% for a small-sized dummy and 95% for a tall-sized dummy.
  • the seat At 5% the seat is very forward and at 95% the seat is very far back, 50% corresponding to the middle longitudinal position of the seat defining the nominal position, in other words the reference position.
  • the position of the seat slides corresponds to the position of the seat according to its longitudinal translation travel.
  • FIG. 3 schematically illustrates, following a longitudinal section at the level of the notch 53 of the sun visor, the results of such tests with the position of mannequins in the passenger compartment of the motor vehicle comprising the arrangement of the camera and the sun visor in the front area of the roof illustrated in Figures 1 and 2 according to the invention.
  • FIG. 4 shows the results of such tests for a sun visor with a plate in the deployed position 5a or folded down 5b, similar to that 5, 50', 50” represented in Figures 1 to 3, but without notch 53, and in the same passenger compartment as previously but without installation of a camera for an anti-sleep system, and following a longitudinal section in a location on the plate which would correspond to the location of the notch.
  • This figure 4 will be commented on at the same time and for comparison with figure 3.
  • Fig. 3 or Fig. 4 are shown the respective profile heads of mannequins placed on the driver's seat for a given driver's seat slide position.
  • a head is represented respectively for a mannequin 6 placed at a position at 5% (advanced longitudinal position), for a mannequin 7 placed at the nominal position of 50% (middle longitudinal position), and a mannequin 8 placed at a position at 95 % (reared longitudinal position).
  • Also shown are the high vision line 10 for mannequin 7 at 50% and the high vision line 11 for mannequin 8 at 95%.
  • the upper limit of sunshine 9 which passes under the lower edge of the plate 50 of the sun visor in the deployed position 50' vertically and through the eye of the mannequin 7 at the nominal position (50%), this limit 9 defining the low vision limit 9.
  • the installation of the camera 40 according to the arrangement of the invention, makes it possible to respect the vision limits between the upper vision limit 11 with the plate 50 in the folded position 50” and the lower vision limit 9 with the plate 50 in the deployed position 50’ vertically (Fig. 3).
  • the camera whether the sun visor is with a plate in the deployed or folded position, the camera has constant access to the driver's eyes to make it possible to detect ocular signs of the driver falling asleep.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Human Computer Interaction (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The invention relates to an arrangement comprising a camera (40) capable of scanning the eyes of a person sitting on a seat in the passenger compartment of a motor vehicle and a sun visor (5) comprising a plate (50) and two lateral supports (51, 52) for the plate, and two lateral axes of rotation (510, 520) rigidly attached to the plate and connecting the plate and the lateral supports, respectively, the plate being capable of being rotated between a folded position (50") and a deployed position (50') relative to a notional axis of rotation (500) passing through the two axes of rotation, the plate having a recess (53) located between its two lateral supports and passing through the notional axis of rotation, and the camera being installed in a through-hole (30) in the interior lining of the roof (3) in the front region of the roof and at the front of the recess.

Description

Titre de l’invention : Agencement comprenant une caméra en zone avant du toit d’un véhicule automobile Title of the invention: Arrangement comprising a camera in the front area of the roof of a motor vehicle
L’invention concerne les implantations de caméras agencées dans l’habitacle d’un véhicule automobile et qui doivent balayer les yeux du conducteur du véhicule. L’usage de caméras permettant le contrôle de l’endormissement du conducteur au volant devient de plus en plus courant. A cette fin, une telle caméra doit permettre de détecter les premiers signes oculaires d’endormissement, donc être apte à balayer les yeux du conducteur en permanence. La caméra doit être apte à faire ce balayage pour des conducteurs de tailles différentes, et donc aussi pour différentes positions avant-arrière du siège du conducteur. The invention relates to camera installations arranged in the passenger compartment of a motor vehicle and which must scan the eyes of the driver of the vehicle. The use of cameras to monitor whether drivers fall asleep at the wheel is becoming more and more common. To this end, such a camera must make it possible to detect the first ocular signs of falling asleep, and therefore be able to scan the driver's eyes constantly. The camera must be able to do this scanning for drivers of different sizes, and therefore also for different front-to-back positions of the driver's seat.
Une caméra balayant les deux yeux peut aussi être utilisée éventuellement à d’autres fins comme faire des selfies. A camera scanning both eyes can also potentially be used for other purposes such as taking selfies.
La demande de brevet CN107379935 divulgue un pare-soleil comprenant une caméra qui se fixe sur un support placé sur une partie haute et latérale de la plaque du pare-soleil dans l’habitacle d’un véhicule automobile. Patent application CN107379935 discloses a sun visor comprising a camera which is fixed on a support placed on an upper and lateral part of the sun visor plate in the passenger compartment of a motor vehicle.
L’implantation de la caméra n’est pas spécialement étudiée par rapport à un problème de balayage des yeux du conducteur, d’autant que la caméra est masquée quand la plaque est rabattue vers le plafond de l’habitacle du véhicule. Il existe un besoin de proposer un agencement pour une caméra d’un système anti-endormissement, qui doit respecter un balayage efficace des yeux du conducteur, notamment à des fins de sécurité en détectant les premiers signes oculaires d’endormissement du conducteur au volant, de jour comme de nuit. A cet effet, l’invention fournit un agencement comprenant une caméra, apte à balayer les yeux d’une personne assise sur un siège, en particulier d’un conducteur, dans l’habitacle d’un véhicule automobile. Ledit agencement, dans une zone face au siège considéré, comprend un pare-soleil comportant une plaque, deux supports latéraux de ladite plaque, et deux axes de rotation latéraux solidaires de la plaque et reliant ladite plaque et respectivement lesdits supports latéraux, la plaque étant mobile en rotation entre une position rabattue et une position déployée par rapport à un axe de rotation fictif passant par lesdits deux axes de rotation latéraux. Ladite plaque du pare-soleil comporte une échancrure située entre les deux supports latéraux de la plaque, et ladite caméra étant implantée dans un trou traversant de la garniture intérieure du toit, en zone avant du toit et à l’avant de ladite échancrure. The installation of the camera is not particularly studied in relation to a problem of scanning the driver's eyes, especially since the camera is hidden when the plate is folded towards the ceiling of the vehicle's passenger compartment. There is a need to propose an arrangement for a camera of an anti-sleep system, which must respect an effective scanning of the driver's eyes, in particular for safety purposes by detecting the first ocular signs of the driver falling asleep at the wheel, Day and night. For this purpose, the invention provides an arrangement comprising a camera, capable of scanning the eyes of a person seated on a seat, in particular of a driver, in the passenger compartment of a motor vehicle. Said arrangement, in an area facing the seat in question, comprises a sun visor comprising a plate, two lateral supports of said plate, and two lateral axes of rotation secured to the plate and connecting said plate and respectively said lateral supports, the plate being mobile in rotation between a folded position and an deployed position relative to a fictitious axis of rotation passing through said two lateral axes of rotation. Said sun visor plate comprises a notch located between the two lateral supports of the plate, and said camera being installed in a through hole in the interior trim of the roof, in the front area of the roof and at the front of said notch.
On entend par « zone avant du toit », une zone du toit proximale du haut du pare- brise et qui comprend la structure du toit ainsi que la garniture intérieure du toit. Avantageusement, ladite échancrure est située entre les deux axes de rotation latéraux et comprend une partie de l’axe de rotation fictif de la plaque, cette partie étant hors des deux axes de rotation latéraux. En particulier lesdits supports latéraux de ladite plaque sont fixés dans la garniture intérieure du toit. The term “front roof area” means an area of the roof proximal to the top of the windshield and which includes the roof structure as well as the interior trim of the roof. Advantageously, said notch is located between the two lateral axes of rotation and comprises a part of the fictitious axis of rotation of the plate, this part being outside the two lateral axes of rotation. In particular, said lateral supports of said plate are fixed in the interior trim of the roof.
En particulier, ladite caméra est implantée dans la zone de la traverse avant du toit (proximale du haut du pare-brise). In particular, said camera is installed in the area of the front cross member of the roof (proximal to the top of the windshield).
En particulier, la caméra est orientée à l’oblique dans l’axe longitudinal du siège considéré, en particulier vers la place du conducteur. In particular, the camera is oriented obliquely in the longitudinal axis of the seat in question, in particular towards the driver's seat.
Selon un mode de réalisation préféré de l’invention, la caméra est orientée, suivant une direction longitudinale, vers la tête d’un mannequin assis (réellement ou virtuellement) sur le siège considéré, et ledit siège étant positionné à 50% de sa course de translation longitudinale. According to a preferred embodiment of the invention, the camera is oriented, in a longitudinal direction, towards the head of a mannequin seated (actually or virtually) on the seat considered, and said seat being positioned at 50% of its travel of longitudinal translation.
Selon un mode de réalisation particulier de l’invention, la caméra est fixée par des moyens de pincement de la garniture intérieure de toit. En particulier lesdits moyens de pincement de la garniture intérieure de toit comprennent un enjoliveur appliqué sur la face de la garniture intérieure de toit du côté intérieur de l’habitacle, et un support de l’enjoliveur disposé entre la structure du toit et la face de ladite garniture du côté de la structure du toit. En particulier ledit enjoliveur supporte ladite caméra. De préférence il entoure au moins la face apparente (dans l’habitacle) de la caméra. According to a particular embodiment of the invention, the camera is fixed by means of pinching the interior roof trim. In particular, said means for pinching the interior roof trim comprise a trim applied to the face of the interior roof trim on the interior side of the passenger compartment, and a support for the trim disposed between the roof structure and the face of the roof. said trim on the side of the roof structure. In particular, said hubcap supports said camera. Preferably it surrounds at least the visible side (in the passenger compartment) of the camera.
Selon un autre mode de réalisation particulier de l’invention, la caméra est fixée directement à la traverse avant du toit. According to another particular embodiment of the invention, the camera is fixed directly to the front crossbar of the roof.
De préférence, ladite caméra est une caméra d’un système anti-endormissement, apte à détecter les signes oculaires d’endormissement d’une personne, en particulier du conducteur du véhicule. Ladite caméra peut aussi fait partie d’un système de prise de selfies. Preferably, said camera is a camera of an anti-sleep system, capable of detecting ocular signs of falling asleep of a person, in particular of the driver of the vehicle. Said camera can also be part of a selfie-taking system.
L’invention a également pour objet un véhicule automobile comprenant, dans son habitacle, un agencement comprenant une caméra apte à balayer les yeux d’une personne, en particulier du conducteur du véhicule, assise sur un siège face à un pare-soleil, tel que décrit précédemment. The invention also relates to a motor vehicle comprising, in its passenger compartment, an arrangement comprising a camera capable of scanning the eyes of a person, in particular of the driver of the vehicle, seated on a seat facing a sun visor, such as as described previously.
D’autres particularités et avantages de l’invention ressortiront à la lecture de la description faite ci-après d’un mode de réalisation particulier de l’invention, donné à titre indicatif mais non limitatif, en référence aux dessins annexés sur lesquels : [Fig. 1 ] illustre, selon une vue de face, un pare-soleil d’un véhicule automobile et l’implantation d’une caméra que comprend un agencement en zone avant du toit d’un véhicule automobile selon un mode de réalisation de l’invention ; Other particularities and advantages of the invention will emerge on reading the description given below of a particular embodiment of the invention, given for information but not limitation, with reference to the appended drawings in which: [ Fig. 1] illustrates, in a front view, a sun visor of a motor vehicle and the installation of a camera which includes an arrangement in the front area of the roof of a motor vehicle according to one embodiment of the invention ;
[Fig. 2] illustre, schématiquement, un agencement comprenant une caméra en zone avant du toit d’un véhicule automobile selon [Fig. 1 ] ; [Fig. 2] illustrates, schematically, an arrangement comprising a camera in the front area of the roof of a motor vehicle according to [Fig. 1 ] ;
[Fig. 3] illustre, schématiquement, selon une vue de côté et suivant une coupe longitudinale au niveau de la caméra, un agencement comprenant une caméra et un pare-soleil en zone avant du toit d’un véhicule automobile selon [Fig. 1 ] et [Fig. 2], et son effet sur la vision du conducteur par rapport au pare-soleil, en position déployée ou rabattue, par représentation de tête de mannequins de tailles différentes, pour différentes positions longitudinales (avant-arrière) de coulisses du siège conducteur ; [Fig. 3] illustrates, schematically, in a side view and in a longitudinal section at the level of the camera, an arrangement comprising a camera and a sun visor in the front area of the roof of a motor vehicle according to [Fig. 1 ] and [Fig. 2], and its effect on the driver's vision in relation to the sun visor, in the deployed or folded position, by representation of the head of size mannequins different, for different longitudinal positions (front-rear) of the driver's seat slides;
[Fig. 4] illustre, schématiquement et à titre comparatif, selon une vue de côté et suivant une coupe longitudinale, l’implantation d’un pare-soleil de l’art antérieur dans un habitacle sans caméra et son effet sur la vision du conducteur, en position déployée ou rabattue, par représentation de tête de mannequins de tailles différentes, pour différentes positions longitudinales (avant-arrière) de coulisses du siège conducteur. [Fig. 4] illustrates, schematically and for comparison, in a side view and in a longitudinal section, the installation of a sun visor of the prior art in a passenger compartment without a camera and its effect on the driver's vision, in deployed or folded position, by representation of the heads of mannequins of different sizes, for different longitudinal positions (front-rear) of the driver's seat slides.
Les orientations exprimées dans la description des figures sont données en référence à un repère classique XYZ du véhicule dans lequel X représente la direction longitudinale avant-arrière du véhicule, orientée vers l’arrière, Y la direction transversale du véhicule, orientée vers la droite, et Z la direction verticale orientée vers le haut du véhicule, ce dernier reposant sur le sol. The orientations expressed in the description of the figures are given with reference to a conventional reference XYZ of the vehicle in which and Z the vertical direction oriented towards the top of the vehicle, the latter resting on the ground.
La figure 1 représente un pare-soleil 5 d’un véhicule automobile et l’implantation d’un ensemble 4 comprenant une caméra d’un système anti-endormissement 40 que comprend un agencement selon l’invention. Le pare-soleil et l’implantation de la caméra se trouvent en zone avant du toit et du côté conducteur du véhicule afin de surveiller les signes oculaires d’endormissement du conducteur. Le pare-soleil 5 comprend une plaque représentée suivant une vue de face depuis le siège conducteur dans l’habitacle, en position déployée et à la verticale. Selon l’exemple, le pare-soleil comprend aussi un miroir 54 intégré à la plaque qui est fermé par un capot relevable.Figure 1 represents a sun visor 5 of a motor vehicle and the installation of an assembly 4 comprising a camera of an anti-sleep system 40 which comprises an arrangement according to the invention. The sun visor and camera installation are located in the front area of the roof and on the driver's side of the vehicle to monitor the driver's eye signs of falling asleep. The sun visor 5 comprises a plate shown in a front view from the driver's seat in the passenger compartment, in the deployed and vertical position. According to the example, the sun visor also includes a mirror 54 integrated into the plate which is closed by a lifting cover.
La plaque 50 du pare-soleil 5 est supportée par un premier support 51 situé latéralement à gauche, et par un deuxième support 52, situé latéralement à droite (excentré transversalement vers la droite). Le pare-soleil comprend en outre un premier axe de rotation 510 solidarisé au support latéral gauche 51 et à la plaque 50, et il comprend un deuxième axe de rotation 520 solidarisé à la plaque 50 et au deuxième support à droite 52. Ladite plaque est mobile en rotation autour d’un axe fictif transversal 500 passant par lesdits premier et deuxième axes de rotation latéraux 510, 520, entre la position déployée 50’ et la position rabattue 50” (Fig. 2 ou Fig. 3). Lesdits supports latéraux 51 , 52 sont fixés dans la garniture intérieure 3 du pavillon.The plate 50 of the sun visor 5 is supported by a first support 51 located laterally on the left, and by a second support 52, located laterally on the right (eccentric transversely to the right). The sun visor further comprises a first axis of rotation 510 secured to the left side support 51 and to the plate 50, and it comprises a second axis of rotation 520 secured to the plate 50 and to the second support on the right 52. Said plate is movable in rotation around a fictitious transverse axis 500 passing through said first and second lateral axes of rotation 510, 520, between the deployed position 50' and the folded position 50” (Fig. 2 or Fig. 3). Said lateral supports 51, 52 are fixed in the interior trim 3 of the roof.
De manière connue, la plaque 50 du pare-soleil peut être manœuvrée vers la vitre latérale gauche du véhicule en désolidarisant le deuxième axe 520 du support droit 52, et en la faisant pivoter vers la vitre autour de l’axe de rotation gauche 510.In known manner, the plate 50 of the sun visor can be maneuvered towards the left side window of the vehicle by separating the second axis 520 from the right support 52, and by rotating it towards the window around the left axis of rotation 510.
Selon l’invention, en référence aux figures 1 à 3, la caméra 40 est disposée à l’avant (direction X) d’une échancrure 53, en partie supérieure de la plaque du pare-soleil, que la plaque 50 soit en position rabattue 50” l’escamotant vers le plafond de l’habitacle, autrement dit vers la garniture intérieure 3 de pavillon, ou en position déployée 50’. L’échancrure 53 se situe entre les deux supports latéraux 51 , 52 de la plaque 50 du pare-soleil. Elle passe sur l’axe fictif de rotation 500 de la plaque 50, hors des deux axes de rotation latéraux 510, 520. Cette implantation de la caméra présente l’avantage de pouvoir conserver l’implantation d’origine du pare- soleil sans échancrure (Fig. 4).According to the invention, with reference to Figures 1 to 3, the camera 40 is arranged at the front (direction folded down 50” retracting it towards the ceiling of the passenger compartment, in other words towards the interior roof trim 3, or in the deployed position 50'. The notch 53 is located between the two side supports 51, 52 of the plate 50 of the sun visor. It passes over the fictitious axis of rotation 500 of the plate 50, outside the two lateral axes of rotation 510, 520. This location of the camera has the advantage of being able to retain the original location of the sun visor without an indentation (Fig. 4).
L’échancrure 53 est plus ou moins centrée de manière à ce que la caméra 40 soit orientée à l’oblique vers la place du conducteur, dans l’axe longitudinal (direction X) du siège, pour un conducteur assis sur le siège du conducteur. Par défaut, la caméra est orientée, suivant une direction longitudinale (direction X) , vers la tête, et plus particulièrement vers les yeux, d’un mannequin assis sur le siège du conducteur en position nominale (coulisses du siège à 50 %) comme expliqué plus loin en référence à la figure 3. The notch 53 is more or less centered so that the camera 40 is oriented obliquely towards the driver's seat, in the longitudinal axis (X direction) of the seat, for a driver seated on the driver's seat . By default, the camera is oriented, in a longitudinal direction (direction explained further with reference to Figure 3.
La caméra 40 peut ainsi balayer les yeux d’un conducteur que la plaque du pare- soleil soit en position déployée 50’, à la verticale dans l’habitacle, ou en position rabattue 50”, l’objectif de la caméra étant toujours positionné à l’avant de l’échancrure 53 de la plaque 50. The camera 40 can thus scan the eyes of a driver whether the sun visor plate is in the deployed position 50', vertically in the passenger compartment, or in the folded position 50", the camera lens always being positioned at the front of the notch 53 of the plate 50.
Selon le mode de réalisation illustré par les figures 1 à 3, la caméra 40 est fixée par pincement de la garniture (intérieure) 3 du pavillon 1 , à l’avant de l’échancrure 53 du pare-soleil. La caméra 40 est disposée au niveau d’un trou traversant 30 réalisé dans la garniture 3 du pavillon 1 , et où elle y est supportée par un enjoliveur 41 . Cet enjoliveur 41 entoure la caméra 40 suivant la face côté habitacle (côté intérieur) de la garniture intérieure de pavillon 3. L’enjoliveur 41 est lui-même accroché à un support 42 disposé sur la face coté pavillon de la garniture 3, c’est-à-dire entre la structure du toit et la garniture 3. La garniture 3 est donc pincée entre l’enjoliveur 41 et le support 42 de l’enjoliveur. Le support 42 de l’enjoliveur est plus particulièrement situé au niveau de la traverse avant 16 du toit 1 qui est proximale de la bordure supérieure du pare-brise 2. According to the embodiment illustrated by Figures 1 to 3, the camera 40 is fixed by pinching the (inner) trim 3 of the roof 1, at the front of the notch 53 of the sun visor. The camera 40 is arranged at the level of a through hole 30 made in the trim 3 of the roof 1, and where it is supported by a hubcap 41. This trim 41 surrounds the camera 40 along the passenger compartment side face (interior side) of the interior roof trim 3. The trim 41 is itself attached to a support 42 placed on the roof side face of the trim 3, it that is to say between the roof structure and the trim 3. The trim 3 is therefore pinched between the hubcap 41 and the support 42 of the hubcap. The support 42 of the hubcap is more particularly located at the level of the front crosspiece 16 of the roof 1 which is proximal to the upper edge of the windshield 2.
Selon un mode de réalisation particulier non illustré par une figure, la caméra 40 peut être fixée selon un autre mode de fixation, notamment en la fixant directement à la traverse avant 16 du toit, donc sans pincement de la garniture de pavillon 3. Il est connu de réaliser des tests de l’efficacité d’un pare-soleil d’un véhicule automobile en installant réellement ou virtuellement un mannequin assis sur le siège du conducteur face au pare-soleil, pour une position de coulisses de siège du conducteur donnée, un mannequin de taille moyenne correspondant à une position de coulisses du siège à 50%, et des positions de coulisses du siège du conducteur complémentaires à 5% pour un mannequin de petite taille et à 95% pour un mannequin de haute taille. A 5% le siège est très avancé et à 95 % le siège très reculé, 50 % correspondant à la position longitudinale milieu du siège définissant la position nominale, autrement dit la position de référence. La position de coulisses du siège correspond à la position du siège selon sa course en translation longitudinale. According to a particular embodiment not illustrated by a figure, the camera 40 can be fixed according to another method of fixing, in particular by fixing it directly to the front cross member 16 of the roof, therefore without pinching the headliner 3. It is known to carry out tests of the effectiveness of a sun visor of a motor vehicle by actually or virtually installing a mannequin seated on the driver's seat facing the sun visor, for a given driver's seat slide position, a medium-sized dummy corresponding to a seat slide position of 50%, and complementary driver's seat slide positions of 5% for a small-sized dummy and 95% for a tall-sized dummy. At 5% the seat is very forward and at 95% the seat is very far back, 50% corresponding to the middle longitudinal position of the seat defining the nominal position, in other words the reference position. The position of the seat slides corresponds to the position of the seat according to its longitudinal translation travel.
[Fig. 3] illustre schématiquement, suivant une coupe longitudinale au niveau de l’échancrure 53 du pare-soleil, les résultats de tels tests avec la position de mannequins dans l’habitacle du véhicule automobile comprenant l’agencement de la caméra et du pare-soleil en zone avant du toit illustré aux figures 1 et 2 selon l’invention. [Fig. 3] schematically illustrates, following a longitudinal section at the level of the notch 53 of the sun visor, the results of such tests with the position of mannequins in the passenger compartment of the motor vehicle comprising the arrangement of the camera and the sun visor in the front area of the roof illustrated in Figures 1 and 2 according to the invention.
[Fig. 4] montre les résultats de tels tests pour un pare-soleil avec une plaque en position déployée 5a ou rabattue 5b, similaire à celui 5, 50’, 50” représenté aux figures 1 à 3, mais sans échancrure 53, et dans le même habitacle que précédemment mais sans implantation de caméra d’un système antiendormissement, et suivant une coupe longitudinale dans un endroit de la plaque qui correspondrait à l’emplacement de l’échancrure. Cette figure 4 va être commentée en même temps et à titre comparatif avec la figure 3. [Fig. 4] shows the results of such tests for a sun visor with a plate in the deployed position 5a or folded down 5b, similar to that 5, 50', 50” represented in Figures 1 to 3, but without notch 53, and in the same passenger compartment as previously but without installation of a camera for an anti-sleep system, and following a longitudinal section in a location on the plate which would correspond to the location of the notch. This figure 4 will be commented on at the same time and for comparison with figure 3.
Sur Fig. 3 ou Fig. 4, sont représentées les têtes vues de profil respectives de mannequins placés sur le siège du conducteur pour une position de coulisses de siège du conducteur donnée. Une tête est représentée respectivement pour un mannequin 6 placé à une position à 5% (position longitudinale avancée), pour un mannequin 7 placé à la position nominale de 50% (position longitudinale milieu), et un mannequin 8 placé à une position à 95% (position longitudinale reculée). Sont aussi représentées la ligne de vision haute 10 pour le mannequin 7 à 50% et la ligne de vision haute 11 pour le mannequin 8 à 95%. Est aussi représentée la limite haute d’ensoleillement 9 qui passe sous le bord inférieur de la plaque 50 du pare-soleil en position déployée 50’ à la verticale et par l’œil du mannequin 7 à la position nominale (de 50%), cette limite 9 définissant la limite de vision basse 9. Par comparaison avec la figure 4, où le pare-soleil comprend une plaque 5a, 5b sans échancrure, l’implantation de la caméra 40 selon l’agencement de l’invention, permet de respecter les bornes de vision entre la limite de vision haute 11 avec la plaque 50 en position rabattue 50” et la limite de vision basse 9 avec la plaque 50 en position déployée 50’ à la verticale (Fig. 3). In Fig. 3 or Fig. 4, are shown the respective profile heads of mannequins placed on the driver's seat for a given driver's seat slide position. A head is represented respectively for a mannequin 6 placed at a position at 5% (advanced longitudinal position), for a mannequin 7 placed at the nominal position of 50% (middle longitudinal position), and a mannequin 8 placed at a position at 95 % (reared longitudinal position). Also shown are the high vision line 10 for mannequin 7 at 50% and the high vision line 11 for mannequin 8 at 95%. Also shown is the upper limit of sunshine 9 which passes under the lower edge of the plate 50 of the sun visor in the deployed position 50' vertically and through the eye of the mannequin 7 at the nominal position (50%), this limit 9 defining the low vision limit 9. By comparison with Figure 4, where the sun visor comprises a plate 5a, 5b without indentation, the installation of the camera 40 according to the arrangement of the invention, makes it possible to respect the vision limits between the upper vision limit 11 with the plate 50 in the folded position 50” and the lower vision limit 9 with the plate 50 in the deployed position 50’ vertically (Fig. 3).
Selon l’invention, que le pare-soleil soit avec une plaque en position déployée ou rabattue, la caméra a un accès constant aux yeux du conducteur pour permettre de détecter les signes oculaires d’endormissement du conducteur. According to the invention, whether the sun visor is with a plate in the deployed or folded position, the camera has constant access to the driver's eyes to make it possible to detect ocular signs of the driver falling asleep.

Claims

Revendications Claims
[Revendication 1] Agencement comprenant une caméra (40), apte à balayer les yeux d’une personne assise sur un siège, en particulier d’un conducteur, dans l’habitacle d’un véhicule automobile, ledit agencement, dans une zone face au siège considéré, comprenant un pare-soleil (5), comportant une plaque (50) et deux supports latéraux (51 , 52) de ladite plaque, et deux axes de rotation latéraux (510, 520) solidaires de la plaque et reliant ladite plaque et respectivement lesdits supports latéraux, la plaque (50) étant mobile en rotation entre une position rabattue (50”) et une position déployée (50’) par rapport à un axe de rotation fictif (500) passant par lesdits deux axes de rotation latéraux (510, 520), ladite plaque (50) comportant une échancrure (53) située entre ses deux supports latéraux (51 , 52) et passant par l’axe de rotation fictif (500) de la plaque (50), et ladite caméra (40) étant implantée dans un trou traversant (30) de la garniture intérieure du toit (3) en zone avant du toit et à l’avant de ladite échancrure (53). [Claim 1] Arrangement comprising a camera (40), capable of scanning the eyes of a person seated on a seat, in particular of a driver, in the passenger compartment of a motor vehicle, said arrangement, in a facing area to the seat in question, comprising a sun visor (5), comprising a plate (50) and two lateral supports (51, 52) of said plate, and two lateral axes of rotation (510, 520) integral with the plate and connecting said plate and respectively said lateral supports, the plate (50) being movable in rotation between a folded position (50”) and an deployed position (50') relative to a fictitious axis of rotation (500) passing through said two axes of rotation lateral (510, 520), said plate (50) comprising a notch (53) located between its two lateral supports (51, 52) and passing through the fictitious axis of rotation (500) of the plate (50), and said camera (40) being installed in a through hole (30) of the interior lining of the roof (3) in the front area of the roof and in front of said notch (53).
[Revendication 2] Agencement selon la revendication 1 , caractérisé en ce que ladite échancrure (53) de la plaque (50) est située entre les deux axes de rotation latéraux (510, 520) et comprend une partie de l’axe de rotation fictif (500) de la plaque (50) hors desdits deux axes de rotation latéraux (510, 520). [Claim 2] Arrangement according to claim 1, characterized in that said notch (53) of the plate (50) is located between the two lateral axes of rotation (510, 520) and comprises part of the fictitious axis of rotation (500) of the plate (50) outside said two lateral axes of rotation (510, 520).
[Revendication 3] Agencement selon l’une des revendications 1 à 2, caractérisé en ce que ladite caméra (40) est implantée dans la zone de la traverse avant du toit (16). [Claim 3] Arrangement according to one of claims 1 to 2, characterized in that said camera (40) is installed in the area of the front crosspiece of the roof (16).
[Revendication 4] Agencement selon l’une quelconque des revendications 1 à 3, caractérisé en ce que la caméra (40) est orientée à l’oblique dans l’axe longitudinal du siège considéré. [Claim 4] Arrangement according to any one of claims 1 to 3, characterized in that the camera (40) is oriented obliquely in the longitudinal axis of the seat in question.
[Revendication 5] Agencement selon l’une quelconque des revendications 1 à 4, caractérisé en ce que la caméra (40) est orientée, suivant une direction longitudinale, vers la tête d’un mannequin (7) assis sur le siège considéré, et ledit siège étant positionné à 50% de sa course de translation longitudinale. [Claim 5] Arrangement according to any one of claims 1 to 4, characterized in that the camera (40) is oriented, in a longitudinal direction, towards the head of a mannequin (7) seated on the seat in question, and said seat being positioned at 50% of its longitudinal translation travel.
[Revendication 6] Agencement selon l’une quelconque des revendications 1 à 5, caractérisé en ce que la caméra (40) est fixée par des moyens de pincement (41 , 42) de la garniture intérieure de toit (3)[Claim 6] Arrangement according to any one of claims 1 to 5, characterized in that the camera (40) is fixed by pinching means (41, 42) of the interior roof trim (3)
[Revendication 7] Agencement d’une caméra selon la revendication 6, caractérisé en ce que lesdits moyens de pincement de la garniture intérieure de toit (3) comprennent un enjoliveur (41 ) appliqué sur la face de la garniture intérieure de toit du côté intérieur de l’habitacle, et un support de l’enjoliveur (41 ) disposé entre la structure du toit (1 , 16) et la face de ladite garniture (3) du côté de la structure du toit. [Claim 7] Arrangement of a camera according to claim 6, characterized in that said means for gripping the interior roof lining (3) comprise a trim (41) applied to the face of the interior roof lining on the interior side of the passenger compartment, and a support the trim (41) disposed between the roof structure (1, 16) and the face of said trim (3) on the roof structure side.
[Revendication 8] Agencement selon l’une quelconque des revendications 1 à 5, caractérisé en ce que la caméra (40) est fixée directement à la traverse avant du toit (16). [Claim 8] Arrangement according to any one of claims 1 to 5, characterized in that the camera (40) is fixed directly to the front crossbar of the roof (16).
[Revendication 9] Agencement selon l’une quelconque des revendications 1 à 8, caractérisé en ce que ladite caméra (40) est une caméra d’un système anti-endormissement, apte à détecter les signes oculaires d’endormissement d’une personne, en particulier du conducteur. [Revendication 10] Véhicule automobile, caractérisé en ce qu’il comprend, dans son habitacle, un agencement comprenant une caméra (40) apte à balayer les yeux d’une personne, en particulier du conducteur du véhicule, assise sur un siège face à un pare-soleil (5), selon l’une quelconque des revendications 1 à 9. [Claim 9] Arrangement according to any one of claims 1 to 8, characterized in that said camera (40) is a camera of an anti-sleep system, capable of detecting ocular signs of a person falling asleep, especially the driver. [Claim 10] Motor vehicle, characterized in that it comprises, in its passenger compartment, an arrangement comprising a camera (40) capable of scanning the eyes of a person, in particular of the driver of the vehicle, seated on a seat facing a sun visor (5), according to any one of claims 1 to 9.
PCT/EP2023/070671 2022-09-07 2023-07-26 Arrangement comprising a camera in a front region of the roof of a motor vehicle WO2024052003A1 (en)

Applications Claiming Priority (2)

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FRFR2208930 2022-09-07
FR2208930A FR3139304A1 (en) 2022-09-07 2022-09-07 Arrangement comprising a camera in the front area of the roof of a motor vehicle

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020043745A (en) * 2000-12-04 2002-06-12 손성호 Vehicle sunvisor and phone
CN107379935A (en) 2017-07-27 2017-11-24 浙江明枫智能科技有限公司 A kind of Novel sun shield for being easy to multi-angle regulation
DE202018106560U1 (en) * 2017-11-21 2019-01-31 Ford Global Technologies, Llc Shield assembly with a receptacle for an electronic device
EP4046839A1 (en) * 2021-02-22 2022-08-24 Robert Bosch GmbH Reducing power usage in a virtual visor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020043745A (en) * 2000-12-04 2002-06-12 손성호 Vehicle sunvisor and phone
CN107379935A (en) 2017-07-27 2017-11-24 浙江明枫智能科技有限公司 A kind of Novel sun shield for being easy to multi-angle regulation
DE202018106560U1 (en) * 2017-11-21 2019-01-31 Ford Global Technologies, Llc Shield assembly with a receptacle for an electronic device
EP4046839A1 (en) * 2021-02-22 2022-08-24 Robert Bosch GmbH Reducing power usage in a virtual visor

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