EP3969275A1 - Vitre pour un véhicule, unité de capteur de vitre et véhicule - Google Patents

Vitre pour un véhicule, unité de capteur de vitre et véhicule

Info

Publication number
EP3969275A1
EP3969275A1 EP20725132.3A EP20725132A EP3969275A1 EP 3969275 A1 EP3969275 A1 EP 3969275A1 EP 20725132 A EP20725132 A EP 20725132A EP 3969275 A1 EP3969275 A1 EP 3969275A1
Authority
EP
European Patent Office
Prior art keywords
view
glass pane
camera
pane
sensor field
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.)
Pending
Application number
EP20725132.3A
Other languages
German (de)
English (en)
Inventor
Alexandra ZAAYMAN
Florian Waldow
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 EP3969275A1 publication Critical patent/EP3969275A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10339—Specific parts of the laminated safety glass or glazing being colored or tinted
    • B32B17/10348—Specific parts of the laminated safety glass or glazing being colored or tinted comprising an obscuration band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • 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
    • 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
    • B60R2011/0026—Windows, e.g. windscreen

Definitions

  • the invention relates to a glass pane for a vehicle, a window sensor unit for a vehicle and a vehicle.
  • Modern vehicles have a large number of assistance systems.
  • the assistance systems evaluate a large amount of environmental data from the vehicle, for example distances to obstacles or other road users, recorded traffic signs, lane markings, the course of the road and much more.
  • Highly developed sensors are used to record the data, for example multifunction cameras or rain and light sensors (RLFS) to control the windshield wipers depending on the intensity of precipitation or the vehicle light.
  • RLFS rain and light sensors
  • most vehicles have a multi-function camera directed in the direction of travel and a rain and light sensor, which is arranged behind the windshield in the interior of the vehicle, mostly in the upper middle area.
  • the multifunction cameras place high demands on the refractive power, the
  • the refractive power of the front pane is strongly influenced by the manufacturing process. So probably by shaping the disc, for example by means of
  • Manufacturing process of the panes can be laboriously adapted by means of corresponding tests, so that the requirements of the camera are met.
  • the invention is now based on the object of providing a possibility for adapting the refractive power of an area assigned to a multifunction camera or a sensor
  • VSG laminated safety glass
  • ESG Single pane safety glass
  • Panes made of laminated safety glass are mostly used as windshields in order to guarantee splinter protection for the occupants in the front seats.
  • Side and rear windows are mostly made of single-pane safety glass for cost and weight reasons, but laminated safety glass panes are also used here in high-quality vehicles.
  • a laminated safety glass pane consists of two safety glass panes, which are glued to one another with a film placed in between. For example with one
  • the first side is defined as the outside of the laminated glass pane, that is to say the outside of the outer pane.
  • the second side is the inside of the outer pane, i.e. the side of the outer pane facing the film.
  • the third side is the outward-facing side of the inner pane, that is to say connected to the film, and the fourth side is the inside of the inner pane, that is the side facing the vehicle interior.
  • Modern vehicles mostly have a camera that looks in the direction of travel and takes pictures through the windshield.
  • cameras are provided for the entire vehicle environment. This means that cameras on these vehicles look through the front, rear and side windows.
  • Modern vehicles often have two cameras that are directed through the windshield, on the one hand a multifunction camera for the close range in front of the vehicle, the data of which is used, for example, to avoid collisions.
  • a telecamera that focuses more distant areas in front of the vehicle and can thus be used, for example, to recognize traffic signs.
  • further sensor systems are often arranged directed through the windshield, for example a rain sensor that determines the intensity of precipitation.
  • the glass pane according to the invention for a vehicle has at least one camera or sensor field of view. Often this is arranged in the upper, central area of a windshield of a motor vehicle, in other versions the camera or sensor field of view is arranged centrally in the lower area of the windshield. The specific position of the camera or sensor field of view in the glass pane is not important for the invention.
  • the camera or the sensor field of view can be configured for one or more cameras and / or one or more sensors.
  • the camera or sensor field of view can also be provided for only one camera or only one sensor.
  • a glass pane according to the invention can have several camera or sensor fields of view.
  • the specific design depends on the circumstances of the specific vehicle and the number and type of cameras and sensors to be installed.
  • the at least one camera and / or the at least one sensor each have a camera or sensor field of view that is directed through the glass pane.
  • a camera or sensor field of view due to the angle of incidence of the windshield, usually has a passage area on the windshield that is largely in the form of an isosceles trapezoid.
  • the glass pane is at least partially printed on at least two printed sides in the immediate vicinity of the passage area of the camera and / or sensor field of view. Between the two sides on which the glass pane is printed lies
  • At least one pane layer at least one pane layer.
  • the glass pane is at least partially printed on at least two print sides in the immediate vicinity of the passage area of the camera and / or sensor field of view. Printing on two sides is advantageous and more cost-effective and easier to produce compared to a larger number of pages
  • a pane layer denotes at least one glass pane and / or a film layer of the glass pane according to the invention.
  • the pane layer can therefore be a pane of single-pane safety glass or also a pane with or without a film layer, both panes with a film layer or just the film layer of a laminated safety glass pane.
  • a printed side denotes a printed side of the glass pane according to the invention. In the case of a laminated glass pane, the four sides of a laminated glass pane described above and a
  • the inner and outer side of this glass sheet can be printed sides.
  • the outer pressure side refers to a
  • the camera located inside the vehicle is arranged and the inner print side is the printed side, which is arranged closer to the camera located in the vehicle interior.
  • side 4 would thus be the inner printing side and side 2 the outer printing side.
  • the pane layer is preferably either the outer or the inner pane of the laminate with or without a film.
  • the refractive power can advantageously be influenced more strongly by the printing according to the invention.
  • Refractive power and other optical properties of the area are adjustable. This creates a cost-effective way of ensuring the function of ultra-modern multifunction cameras through a safety glass pane.
  • the specific design of the print such as the selection of the print pattern and
  • the refractive power of the safety glass pane can be positively influenced by a pressure on the outer pressure side and the refractive power can be negatively influenced by a pressure on the inner pressure side.
  • the effects on the refractive power are also in particular from the curvature of the disc, the
  • the printing is carried out using printing paste known from the prior art for glass surfaces. Often, printing pastes to be burned in are used, which are burned into the glass after the print application by the influence of heat. Often, after printing, vehicle windows are further shaped by heat treatment anyway. Advantageously, no additional work step for burning in the printing paste is necessary.
  • the specific selection of the printing paste is irrelevant with regard to the invention as long as the printed area is light blocking.
  • the glass pane is a laminated glass pane.
  • the printing is preferably provided on sides 2 and 4 of the laminated safety glass pane, in this case the pane layer is the inner pane and the laminated film of the laminated safety glass pane.
  • Other configurations are also possible, for example on page 1 and page 4, page 2 and page 4 or page 3 and page 4.
  • printing on the outside (page 1) is unfavorable because the print is then exposed to all environmental influences and may be damaged becomes.
  • an IR layer described below, is often applied to the pane on page 3, which leads to a preferred application on page 2 and page 4.
  • the glass pane is made of single-pane safety glass.
  • the pressure is arranged on both sides of the disc.
  • the pane layer is the single-pane safety glass pane itself.
  • the optical properties of the glass pane can advantageously be adapted simply and inexpensively to the requirements of the camera.
  • Certain glass panes often referred to as climate comfort panes in motor vehicles, have an IR layer.
  • the IR layer is made of silver.
  • this silver layer can be coated as a resistance heater.
  • the IR layer is often arranged on side 3 of a laminated safety glass pane.
  • a multifunction camera cannot be disadvantageous with a IR layer work, therefore, according to the invention, the IR layer is removed in the area of the camera or sensor field of view.
  • the IR layer is removed by means of abrasive (mostly using a milling cutter) or laser removal. Both methods are advantageously simple and inexpensive to use.
  • the passage area can also be covered before the application of the IR layer, so that the IR layer is applied to the cover. After removing the covering, the covered area is a recess in the IR layer.
  • the outer print side that is to say the print side further away from the vehicle interior, is printed over the at least one camera or sensor field of view.
  • the outer print side is, for example, when printing on pages 2 and 4, side 2, as this is further away from the vehicle interior.
  • a bar is printed over the at least one camera or sensor field of view on the inner print side, that is to say the print side closer to the vehicle interior.
  • the bar preferably has a rectangular shape or is trapezoidal.
  • the refractive index of the glass pane can advantageously be set very well, in particular in conjunction with a pressure over the at least one camera or sensor field of view on the outer pressure side.
  • this print is preferably applied to side 4.
  • the transmission properties of the glass pane can be set very well by positioning the pressure areas of the two pressure sides (outer and inner pressure side) relative to one another and relative to the camera or sensor field of view.
  • the pressure via the camera or sensor field of view on the outer print side and the pressure via the camera or sensor field of view on the inner print side brought up to a few mm from that of the camera or sensor field of view.
  • the distance between the camera or sensor field of view is preferably less than 15 mm, more preferably less than 10 mm, more preferably less than 5 mm and particularly preferably less than 3 mm.
  • the pressure on the outer pressure side in the area of the sides of the passage area of the cone of vision of the multifunction camera is preferably at a smaller distance from the passage area of the field of view than the pressure on the inner pressure side.
  • the distance between the pressure on the outer pressure side and the passage area of the viewing cone in the area of the sides of the passage area of the viewing cone is preferably less than 5 mm, more preferably less than 3 mm less than the distance between the pressure on the inner pressure side and the passage area of the viewing cone in the area of the sides of the passage area of the viewing cone.
  • the print preferably applied to side 2 has an edge with a print pattern over the at least one camera or sensor field of view. In this way, the two-sided print can be concealed and the visual impression of the camera or sensor field of view printed in the immediate vicinity can be improved.
  • the print pattern has a density between 40% and 85%.
  • the printing is carried out using the screen printing process
  • a bar is particularly preferably printed under the camera or sensor field of view. This bar preferably extends over the entire width of the lower delimitation of the passage area of the camera field of view. More preferably, the bar has a height to width ratio between 1:20 and 1: 2, preferably between 1: 4 and 1: 8. It has been shown to be advantageous that the refractive index can be reduced by printing the opaque bar.
  • the bar is particularly preferably printed on the print side arranged closer to the vehicle interior.
  • the opaque bar is preferably printed on side 4 of the laminated unsafe glass pane.
  • a further bar is preferably arranged in parallel above the opaque bar. This bar is also below the camera or sensor field of view and has a print pattern with a density between 20% and 80%. The influence of scattered light can thus advantageously be minimized.
  • the glass pane has a
  • the fastening area is often arranged under the camera or sensor field of view.
  • the fastening area for the rearview mirror is preferably printed on the outer print side. The is particularly preferred
  • a printed area on the inner print side is also preferred in the space between the fastening area for the rearview mirror and the camera or sensor field of view.
  • This printed area is particularly preferably only a very small distance from the camera or sensor field of view. The distance is particularly preferably less than 10 mm, more preferably less than 5 mm and particularly preferably less than 3 mm. Furthermore, this printed area preferably extends into the fastening area for the rearview mirror, so that an overlap with the printed area on the outer printing side of the
  • Figure 1 is a plan view of a front window in the area of the camera or
  • Figure 2 is a plan view from above of the camera and sensor field of view of a
  • FIG. 3 shows a side view of a multifunction camera arranged on a front window
  • FIG. 4 shows a top view of a multifunction camera arranged on a front window.
  • FIG. 1 shows a front window 0 of a passenger vehicle in the area of the camera and sensor field of view 1.
  • the camera and sensor field of view 1 is provided for a multifunction camera.
  • the camera and sensor field of view 1 is surrounded by a printing edge 4.
  • the print edge 4 is shown as an edge only for the sake of clarity and shows the edge of a black print area which extends outward from the print edge 4 without interruption and surrounds the camera and sensor field of view 1.
  • the camera and sensor field of view 1 is delimited by a bar 3 at the bottom.
  • the camera and sensor field of view 1 is surrounded by a screen printing area 2.
  • the screen printing area 2 has a dot matrix with a density of 85%.
  • Bar 3, printing edge 4 and screen printing area 2 are applied by means of the same printing paste as part of the manufacturing process for front panel 0.
  • the printing edge is 4 (and the one that adjoins it to the outside without interruption
  • FIG. 2 shows a top view of a camera and sensor area 1 of a
  • the front pane 0 in Figure 2 has two camera fields of view, namely
  • Multi-function camera 11 and the field of view of telecamera 12 is a surface black print 5 with a print edge 4 on side 2 of the front window 0 applied.
  • the field of view of the telecamera 12 is followed by a strip of screen printing 41 on the printing edge 4.
  • the strip of screen printing 41 has aesthetic reasons, since it creates the visual impression a top view from the outside of the front panel 0 can be improved.
  • the strip 41 can also be represented differently. Often a larger-area grid of points is applied in order to advantageously avoid dazzling the driver from the sun.
  • the printing edge 4 is at a distance of a from the fields of view of the two cameras 11,
  • the print edge 4, the black print 5 and the strip of screen print 41 are applied to side 2 of the front pane 0.
  • a bar 3 is arranged above the fields of view of the two cameras 11, 12.
  • the bar 3 is in the flanks of the camera fields of view 11, 12 at a distance e from the printing edge 4.
  • the bar is at a distance b from the fields of view of the two cameras 11, 12, the distance b in these areas being less than the distance between the print edge 4 and the fields of view of the two cameras 11, 12.
  • a mirror holder is arranged under the field of view of the multifunction camera 11 and has a black print to cover the mirror holder 6, which is printed on side 2 of the front pane 0.
  • the black print for covering the mirror holder 6 has a width i and a distance f from the camera field of view of the multifunction camera 11.
  • a bar of the mirror holder 31 is arranged in the area between the black print for covering the mirror holder 6 and the camera field of view of the multifunction camera 11. This has a height g and a distance b from the camera field of view
  • the bar of the mirror holder 31 overlaps the black print for covering the mirror holder 6 by a height of g- (f-b).
  • the bar of the mirror holder 31 and the bar 3 are applied to side 4 of the windshield.
  • Transparent area of the windshield 0 is provided as a field of vision for a rain and light sensor 13.
  • FIG. 3 shows a side view of a multifunction camera 7 with an optical axis 71 and a camera viewing cone 72.
  • the refraction of the camera viewing cone 72 as it passes through the front pane 0 is clearly visible.
  • a viewing angle of the camera forms between the front pane 0 and the optical axis of the camera 71 a.
  • FIG. 4 shows the illustration according to FIG. 3 in a top view.
  • FIG. 4 shows the illustration according to FIG. 3 in a top view.
  • the multifunction camera 7 with the optical axis 71 and the camera viewing cone 72 can be seen when passing through the front pane 0.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne une vitre pour un véhicule, qui comporte au moins un champ optique (1) de caméra ou de capteur. Le champ optique (1) de caméra ou de capteur peut être configuré pour une ou plusieurs caméras et/ou pour un ou plusieurs capteurs. Selon l'invention, la vitre est imprimée au moins en partie sur deux côtés d'impression dans l'environnement immédiat de la surface de passage du champ optique (1) de caméra et/ou de capteur. Au moins une couche de vitre se situe selon l'invention sur les deux côtés sur lesquels la vitre est imprimée. La couche de vitre peut être une ou plusieurs vitres ou peut être également le film de liaison dans le cas d'une vitre de sécurité composite. Il a été constaté de manière avantageuse que l'impression selon l'invention de deux côtés d'impression d'une vitre dans la zone du champ optique de caméra ou de capteur à proximité immédiate d'une zone définie permet de régler l'indice de réfraction de la zone. Ainsi, l'invention offre une possibilité avantageuse en termes de coûts pour assurer le fonctionnement de caméras multifonctionnelles de pointe à travers une vitre de sécurité. La configuration concrète de l'impression, telle que le choix du motif d'impression et sa densité et les espacements par rapport à la surface de passage du champ optique de caméra, doit être déterminée individuellement pour chaque ensemble vitre-caméra. Cela est lié au fait qu'une pluralité de facteurs d'incidence influe sur les propriétés optiques d'une vitre, notamment l'incurvation de la vitre et son processus de fabrication.
EP20725132.3A 2019-05-13 2020-05-06 Vitre pour un véhicule, unité de capteur de vitre et véhicule Pending EP3969275A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019112454.9A DE102019112454A1 (de) 2019-05-13 2019-05-13 Glasscheibe für ein Fahrzeug, Scheiben-Sensor-Einheit und Fahrzeug
PCT/EP2020/062570 WO2020229260A1 (fr) 2019-05-13 2020-05-06 Vitre pour un véhicule, unité de capteur de vitre et véhicule

Publications (1)

Publication Number Publication Date
EP3969275A1 true EP3969275A1 (fr) 2022-03-23

Family

ID=70680486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20725132.3A Pending EP3969275A1 (fr) 2019-05-13 2020-05-06 Vitre pour un véhicule, unité de capteur de vitre et véhicule

Country Status (4)

Country Link
EP (1) EP3969275A1 (fr)
CN (1) CN113840728A (fr)
DE (1) DE102019112454A1 (fr)
WO (1) WO2020229260A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201904203D0 (en) 2019-03-26 2019-05-08 Pikington Group Ltd Laminated glazing and process

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DE10009992C2 (de) * 2000-03-01 2002-04-11 Kostal Leopold Gmbh & Co Kg Filtereinrichtung für einen optoelektronischen Sensor
US20050089691A1 (en) * 2001-12-25 2005-04-28 Tatsuya Noguchi Windshield glass
ATE461038T1 (de) * 2002-01-11 2010-04-15 Nippon Sheet Glass Co Ltd Verbundglas zur verwendung in fahrzeugen und herstellungsverfahren dafür
JP3849533B2 (ja) * 2002-01-25 2006-11-22 日本板硝子株式会社 ウインドシールド用合わせガラス
DE102009026319A1 (de) * 2009-08-04 2011-02-24 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Scheibe mit optisch transparenten Sensorfeld
PL2325002T5 (pl) * 2009-11-17 2016-06-30 Saint Gobain Sposób wytwarzania szyby zespolonej z oknem dla czujnika
DE102010004443A1 (de) * 2010-01-13 2011-07-14 Conti Temic microelectronic GmbH, 90411 In Windschutzscheibe integrierter Tageslichtfilter für IR-Sensoren
CN106103158B (zh) * 2014-03-14 2018-11-06 日本板硝子株式会社 挡风玻璃
US10780674B2 (en) * 2015-02-19 2020-09-22 Agp America S.A. Obscuration having superior strength and optical quality for an automotive laminate
FR3056147B1 (fr) * 2016-09-21 2021-02-12 Saint Gobain Procede d'impression sur une face exterieure d'un vitrage feuillete
CN110114214B (zh) * 2016-12-21 2022-07-15 旭硝子欧洲玻璃公司 叠层嵌装玻璃
CO2017007600A1 (es) * 2017-03-31 2018-01-31 Agp America Sa Laminado para automotor con ventana superior para cámara
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ES2898363T3 (es) * 2018-01-11 2022-03-07 Saint Gobain Luna de vehículo, vehículo y procedimiento de fabricación
DE202018105625U1 (de) * 2018-01-11 2018-10-25 Saint-Gobain Glass France Fahrzeugscheibe und Fahrzeug mit Fahrzeugscheibe
JP7237077B2 (ja) * 2018-01-24 2023-03-10 セントラル硝子株式会社 情報取得システム用のフレームを有するグレージング

Also Published As

Publication number Publication date
CN113840728A (zh) 2021-12-24
WO2020229260A1 (fr) 2020-11-19
DE102019112454A1 (de) 2020-11-19

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