WO2024002696A1 - Agencement pour un système d'aide à la conduite - Google Patents

Agencement pour un système d'aide à la conduite Download PDF

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Publication number
WO2024002696A1
WO2024002696A1 PCT/EP2023/065924 EP2023065924W WO2024002696A1 WO 2024002696 A1 WO2024002696 A1 WO 2024002696A1 EP 2023065924 W EP2023065924 W EP 2023065924W WO 2024002696 A1 WO2024002696 A1 WO 2024002696A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
radiation
mirror structure
arrangement
driver assistance
Prior art date
Application number
PCT/EP2023/065924
Other languages
German (de)
English (en)
Inventor
Markus KEWITZ
Julian GREVERATH
Michele CAPPUCCILLI
Andreas GOMER
Original Assignee
Saint-Gobain Glass France
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 Saint-Gobain Glass France filed Critical Saint-Gobain Glass France
Priority to CN202380010461.4A priority Critical patent/CN117642781A/zh
Publication of WO2024002696A1 publication Critical patent/WO2024002696A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
    • 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
    • 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
    • B32B17/10082—Properties of the bulk of a glass sheet
    • B32B17/10091—Properties of the bulk of a glass sheet thermally hardened
    • 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
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/1022—Metallic coatings
    • B32B17/10229—Metallic layers sandwiched by dielectric layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B32B17/10256—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques
    • B32B17/10266—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons created by printing techniques on glass pane
    • 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
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    • 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
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/1044—Invariable transmission
    • B32B17/10458—Polarization selective transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • 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
    • B32B17/10431—Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
    • B32B17/10467—Variable transmission
    • B32B17/10495—Variable transmission optoelectronic, i.e. optical valve
    • 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
    • B32B17/1055—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 resin layer, i.e. interlayer
    • B32B17/10651—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 resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments
    • B32B17/1066—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 resin layer, i.e. interlayer comprising colorants, e.g. dyes or pigments imparting a tint in certain regions only, i.e. shade 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
    • B32B17/1055—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 resin layer, i.e. interlayer
    • B32B17/10761—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 resin layer, i.e. interlayer containing vinyl acetal
    • 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
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    • 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
    • B32B17/1055—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 resin layer, i.e. interlayer
    • B32B17/10788—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 resin layer, i.e. interlayer containing ethylene vinylacetate
    • 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
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
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Definitions

  • the invention relates to an arrangement for a driver assistance system with vehicle glazing, a radiation source for emitting infrared radiation and a radiation receiver for receiving infrared radiation.
  • the invention further relates to a system and a method for monitoring a vehicle user.
  • Driver assistance systems are often used in motor vehicles, especially passenger vehicles.
  • Driver assistance systems support the driver in controlling the vehicle, for example through automatic braking interventions if there is a risk of a collision or automatic lane keeping.
  • Such driver assistance systems can include monitoring for the driver in order to detect early driver fatigue.
  • Systems are known in which the driver's face is scanned using infrared radiation. The direction and duration of the driver's gaze are recorded in order to determine whether the driver is tired.
  • the driver assistance systems usually include a radiation source for emitting infrared radiation and a radiation receiver for receiving infrared radiation, which are typically independent components but are usually arranged in the same assembly. The radiation source is arranged so that the infrared radiation is directed directly onto the driver's face and in particular the eye area.
  • the infrared radiation is reflected from the driver's face and then recorded directly by the radiation receiver (e.g. a camera).
  • the radiation receiver e.g. a camera
  • the radiation source and radiation receiver must be arranged in such a way that there is a clear view of the driver's face.
  • the arrangement according to the invention for a driver assistance system of a vehicle comprises a radiation source for emitting infrared radiation, a radiation receiver for receiving infrared radiation and vehicle glazing.
  • the vehicle glazing has an outer pane and an inner pane, which are connected to one another via a thermoplastic intermediate layer. Furthermore, the vehicle glazing includes at least one masking strip and a mirror structure for reflecting infrared and visible radiation.
  • the radiation source is arranged such that infrared radiation can be reflected from the mirror structure as a first reflection radiation onto the face of a vehicle user and the first reflection radiation can be reflected from the vehicle user's face onto the mirror structure as a second reflection radiation.
  • the radiation receiver is arranged in such a way that the second reflection radiation reflected by the mirror structure as third reflection radiation is reflected to the radiation receiver and can be received by the radiation receiver. Furthermore, the radiation receiver comprises a light sensor that detects light reflected by the mirror structure. According to the invention, the monitoring of a facial condition is expanded by means of a light sensor that detects a light beam reflected by the mirror structure. The image data provides additional information about the vehicle user's face.
  • the radiation receiver can be arranged on the dashboard (also called a console, control panel or switch panel) of the vehicle, in particular in the vicinity of the steering wheel.
  • the radiation receiver can be arranged on an A-pillar, center console, steering wheel or rear-view mirror of the vehicle.
  • the radiation receiver can be arranged centrally on the dashboard of the vehicle. This arrangement of the radiation receiver allows multiple faces to be detected for monitoring purposes.
  • the radiation receiver can expediently be provided for detecting a facial condition of the driver and a facial condition of the passenger.
  • the mirror structure is particularly suitable as a mirror whose reflectivity can be changed, such as in a vehicle mirror. Furthermore, the mirror structure can have aluminum and/or nickel-chrome.
  • the mirror structure can be arranged on the inner pane.
  • the mirror structure can be arranged between the inner pane and the thermoplastic intermediate layer.
  • the mirror structure can be attached to a surface (IV) of the inner pane facing away from the intermediate layer, which enables particularly simple production.
  • the arrangement means both the direct arrangement of the mirror structure on the pane and an indirect arrangement on the pane.
  • at least one further layer can be arranged between the pane and the mirror structure.
  • the mirror structure can be arranged in an edge region of the vehicle glazing, in particular as a windshield. Is the Mirror structure arranged in an edge area, then preferably near an edge, in particular the lower edge, of the windshield. A distance between the mirror structure and the edge of the inner pane is preferably 0.1 to 30 cm, particularly preferably 1 to 15 cm and in particular 5 to 10 cm.
  • the arrangement of the mirror structure in an edge area is particularly suitable since, in many possible uses of vehicle glazing, the viewing area is usually located in a central area of the glazing. This means that even when the mirror structure is switched on in a semi-transparent (partially reflective) or completely reflective state, the view is not impaired.
  • the mirror structure can be arranged in front of an opaque masking strip in the viewing direction through the vehicle glazing from the inner window, the opaque masking strip acting as an opaque background and in some areas at least on one of the surfaces (III, IV) of the inner window and / or the Surfaces (I, II) of the outer pane is arranged.
  • This achieves a good, high-contrast image display of images cast onto the vehicle glazing.
  • the images reflected by the mirror structure are reflected particularly brightly and are therefore very easy to see.
  • the mirror structure and an opaque masking strip can be separated from one another by the intermediate layer and/or by the inner pane.
  • the distance between the mirror structure and the masking strip can be less than 3 millimeters. At a distance of less than 3 millimeters, very clear reflection images are achieved.
  • the masking strip is preferably designed to be opaque.
  • the opaque masking strip which is arranged in regions at least on one of the surfaces (I, II, III) of the outer pane or inner pane, can in principle be arranged on each side of the pane.
  • this is preferably applied to the surface (II) of the outer pane facing the intermediate layer, where it is protected from external influences.
  • the masking strip is preferably a coating made up of one or more layers. Alternatively, it can also be an opaque element inserted into the composite pane, for example a film.
  • the masking strip consists of a single layer. This has the advantage of a particularly simple and cost-effective production of the composite pane, since only a single layer has to be formed for the masking strip.
  • the masking strip is used to mask an adhesive bead for gluing the windshield into a vehicle body. This means that it prevents the outside view of the adhesive bead, which is usually applied irregularly, so that a harmonious overall impression of the windshield is created.
  • the masking strip serves as UV protection for the adhesive material used. Continuous exposure to UV light damages the adhesive material and would loosen the connection between the window and the vehicle body over time.
  • the masking strip can also be used, for example, to cover busbars and/or connection elements.
  • the masking strip is printed on the outer pane and/or the inner pane, in particular using a screen printing process.
  • the printing ink is printed through a fine-mesh fabric onto the glass pane.
  • the printing ink is pressed through the fabric using a rubber squeegee, for example.
  • the fabric has areas that are permeable to the ink alongside areas that are impermeable to the ink, thereby defining the geometric shape of the print.
  • the fabric therefore acts as a template for printing.
  • the printing ink contains at least one pigment and glass frits suspended in a liquid phase (solvent), for example water or organic solvents such as alcohols.
  • the pigment is typically a black pigment, for example carbon black, aniline black, bone black, iron oxide black, spinel black and/or graphite.
  • the glass pane is subjected to a temperature treatment, whereby the liquid phase is driven off by evaporation and the glass frits are melted and permanently bond to the glass surface.
  • the temperature treatment is typically carried out at temperatures in the range of 450°C to 700°C.
  • the pigment remains as a masking strip in the glass matrix formed by the melted glass frit.
  • the masking strip preferably has a thickness of 5 pm to 50 pm, particularly preferably 8 pm to 25 pm.
  • the masking strip can in principle be arranged on each side of the inner pane or the outer pane. In the case of vehicle glazing according to the invention, this is preferably applied in the installed position on the second surface (inside) II of the outer pane, where it is protected from external influences.
  • the masking strip is a colored or pigmented, preferably black-pigmented, thermoplastic composite film, which is preferably based on polyvinyl butyral (PVB), ethyl vinyl acetate (EVA) or polyethylene terephthalate (PET), preferably PVB.
  • the coloring or pigmentation of the composite film can be freely selected, but black is preferred.
  • the colored or pigmented composite film is preferably arranged between the inner pane and the outer pane.
  • the colored or pigmented thermoplastic composite film preferably has a thickness of 0.25 mm to 1 mm.
  • the colored or pigmented composite film extends over a maximum of 50% and particularly preferably a maximum of 30% of the area of the composite pane.
  • a transparent further thermoplastic composite film is preferably arranged between the inner pane (for example a first pane) and the outer pane (for example a second pane), which covers at least 50%, preferably at least 70% of the area of the vehicle glazing (composite pane).
  • the colored or pigmented composite film is arranged offset from the transparent thermoplastic composite film in the surface plane of the vehicle glazing so that they do not overlap or cover each other.
  • the masking strip can also be provided by a partially pigmented or colored thermoplastic composite film.
  • the mirror structure is arranged spatially in front of the pigmented or colored area of the thermoplastic composite film.
  • the pigmentation or coloring of the composite film preferably extends over a range of a maximum of 50% and particularly preferably a maximum of 30% of the area of the composite pane.
  • the remaining part of the partially pigmented or colored thermoplastic composite film is transparent, i.e. designed without pigmentation or coloring.
  • the partially pigmented or colored thermoplastic composite film preferably extends over the entire surface of the composite pane as vehicle glazing.
  • the design of the masking strip as a pigmented or colored thermoplastic composite film or as a partially pigmented or colored thermoplastic composite film simplifies the production of the composite pane and improves its stability. It is very advantageous if the inner pane or the outer pane do not have to be previously coated to create an opaque background. On the one hand, this increases the stability of the composite pane and further improves process efficiency.
  • the vehicle glazing can have at least one functional layer, in particular one that reflects infrared radiation.
  • the functional layer is arranged on a surface of the outer or inner pane and covers or partially covers the surface of the respective pane, but preferably over a large area.
  • the term "large-scale” means that at least 50%, at least 60%, at least 70%, at least 75% or preferably at least 90% of the surface of the pane is covered (eg coated) by the functional layer.
  • the functional layer is preferably transparent to visible light.
  • the functional layer is a single layer or a layer structure made up of several individual layers with a total thickness of less than or equal to 2 pm, particularly preferably less than or equal to 1 pm.
  • transparent means that the total transmission of the vehicle glazing (e.g. windshield) complies with the legal regulations and preferably has a transmittance of more than 70% and in particular of more than 75% for visible light.
  • opaque means a light transmission of less than 15%, preferably less than 5%, in particular 0%.
  • the values for light transmission (TL) and reflection (RL) refer (as is usual for automobile glazing) to illuminant A, i.e. the visible portion of sunlight at a wavelength of 380 nm to 780 nm, i.e. essentially the visible spectrum of the Solar radiation. Infrared rays are understood to be rays with a wavelength greater than approximately 800 nm.
  • the vehicle glazing has at least one functional layer for reflecting p-polarized light.
  • the functional layer can be arranged between the inner pane and the outer pane, preferably on a side of the inner pane facing away from the interior of the vehicle.
  • the functional layer can be arranged spatially in front of the masking strip when viewed through the vehicle glazing, starting from the inside of the inner window.
  • the masking strip can be arranged on the outside of the inner pane or on the inside of the outer pane.
  • the functional layer is preferably designed to be transparent.
  • looking through the vehicle glazing means looking through the vehicle glazing, starting from the inside of the inner window.
  • spatially in front means that the functional layer is arranged spatially further away from the outside of the outer pane than at least the masking strip.
  • the term p-polarized light refers to light from the visible spectral range, which consists predominantly of light that has a p-polarization.
  • the p-polarized light preferably has a light component with p-polarization of >50%, preferably of >70% and particularly preferably of >90% and in particular of about 100%.
  • the specification of the The polarization direction refers to the plane of incidence of the radiation on the composite pane.
  • P-polarized radiation refers to radiation whose electric field oscillates in the plane of incidence.
  • S-polarized radiation refers to radiation whose electric field oscillates perpendicular to the plane of incidence.
  • the plane of incidence is spanned by the incidence vector and the surface normal of the composite pane in the geometric center of the irradiated area.
  • the functional layer is designed to reflect light from the image display device.
  • the functional layer preferably reflects 30% or more, preferably 50% or more, very particularly 70% or more and in particular 90% or more of the p-polarized light
  • the functional layer preferably comprises at least one metal selected from the group consisting of aluminum, tin, titanium, copper, chromium, cobalt, iron, manganese, zirconium, cerium, yttrium, silver, gold, platinum and palladium, or mixtures thereof.
  • the functional layer is a coating containing a thin-film stack, i.e. a layer sequence of thin individual layers.
  • This thin film stack contains one or more electrically conductive layers based on silver.
  • the electrically conductive layer based on silver gives the functional coating the basic reflective properties as well as an IR-reflecting effect and electrical conductivity.
  • the electrically conductive layer is based on silver.
  • the conductive layer preferably contains at least 90% by weight of silver, particularly preferably at least 99% by weight of silver, most preferably at least 99.9% by weight of silver.
  • the silver layer can have dopants, for example paladium, gold, copper or aluminum.
  • Silver-based materials are particularly suitable for reflecting p-polarized light.
  • the use of silver in functional layers has proven to be particularly advantageous in reflecting p-polarized light.
  • the coating has a thickness of 5 pm to 50 pm and preferably 8 pm to 25 pm.
  • the radiation receiver comprises a light sensor.
  • the light sensor can preferably be designed as a photodiode or as a camera.
  • the radiation receiver and the at least one radiation source can be designed as a module, ie a structural unit, in which the light sensor is arranged centrally and the at least one radiation source is arranged to the side of the radiation receiver.
  • the outer pane and inner pane preferably contain or consist of glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass, alumino-silicate glass, or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate , polystyrene, polyamide, polyester, polyvinyl chloride and/or mixtures thereof.
  • the outer pane and inner pane can have other suitable, known coatings, for example anti-reflective coatings, non-stick coatings, anti-scratch coatings, photocatalytic coatings or sun protection coatings or low-E coatings.
  • the thickness of the individual panes can vary widely and be adapted to the requirements of the individual case. Discs with standard thicknesses of 0.5 mm to 5 mm and preferably 1.0 mm to 2.5 mm are preferably used. The size of the discs can vary widely and depends on the use.
  • the thermoplastic intermediate layer contains or consists of at least one thermoplastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyurethane (PU) or copolymers or derivatives thereof, optionally in combination with polyethylene terephthalate (PET).
  • the thermoplastic intermediate layer can also, for example, polypropylene (PP), polyacrylate, polyethylene (PE), polycarbonate (PC), polymethyl methacrylate, polyvinyl chloride, polyacetate resin, casting resin, acrylate, fluorinated ethylene-propylene, polyvinyl fluoride and / or ethylene-tetrafluoroethylene, or a copolymer or mixture thereof.
  • the thermoplastic intermediate layer is preferably designed as at least one thermoplastic composite film and contains or consists of polyvinyl butyral (PVB), particularly preferably polyvinyl butyral (PVB) and additives known to those skilled in the art, such as plasticizers.
  • the thermoplastic intermediate layer preferably contains at least one plasticizer.
  • the thermoplastic intermediate layer can be formed by a single film or by more than one film.
  • the thermoplastic intermediate layer can be formed by one or more thermoplastic films arranged one above the other, the thickness of the thermoplastic intermediate layer preferably being from 0.25 mm to 1 mm, typically 0.38 mm or 0.76 mm.
  • the invention further extends to a system for monitoring a driver of a vehicle, which comprises an arrangement according to the invention, at least one actuator and / or at least one signal output device and an electronic control device, which is intended to operate on the basis of an output signal of the Radiation receiver to determine information about the driver. Based on the information determined, an electrical signal is sent to the at least one actuator for carrying out a mechanical action and/or to the at least one signal output device for outputting an optical and/or acoustic signal.
  • the invention extends to a method for monitoring a vehicle user, in particular a driver of a vehicle, which comprises the following steps:
  • the invention extends to the use of the arrangement according to the invention in a driver assistance system with monitoring of a vehicle user of a vehicle for traffic on land, on water or in the air.
  • Figure 1 is a schematic view of the arrangement according to the invention
  • Figure 2 is a top view of a vehicle glazing from Figure 1
  • Figure 3 is a cross-sectional view of a first embodiment
  • Figure 4 is a cross-sectional view of a second embodiment
  • FIG. 1 shows a schematic view of the arrangement 1 according to the invention.
  • the arrangement 1 according to the invention comprises vehicle glazing 5 of a vehicle.
  • the vehicle glazing 5 is, for example, a composite pane designed as a windshield, which has an outer pane 5.1 and an inner pane 5.2, which are firmly connected to one another by a thermoplastic intermediate layer 5.3.
  • the vehicle glazing 5 separates a vehicle interior 10 from an external environment.
  • the outer pane 5.1 and the inner pane 5.2 each consist of glass, preferably thermally toughened soda-lime glass, and are transparent to visible light.
  • the thermoplastic intermediate layer 5.3 consists of a thermoplastic, preferably polyvinyl butyral (PVB), ethylene vinyl acetate (EVA) and/or polyethylene terephthalate (PET).
  • PVB polyvinyl butyral
  • EVA ethylene vinyl acetate
  • PET polyethylene terephthalate
  • the outer pane 5.1 has a first surface I facing away from the thermoplastic intermediate layer and a second surface II facing the thermoplastic intermediate layer.
  • the inner pane 5.2 has a first surface III facing the thermoplastic intermediate layer and a second surface VI facing away from the thermoplastic intermediate layer.
  • the second surface II of the outer pane 5.2 and the first surface III of the inner pane 5.2 each face the intermediate layer 5.3.
  • the first surface I of the outer pane 5.1 is the outer surface of the vehicle glazing 5.
  • the second surface IV of the inner pane 5.2 is the inside of the vehicle glazing 5.
  • a functional layer 5.6 also referred to as a reflection layer, is applied to the first surface III of the inner pane 5.2.
  • the functional layer 5.6 is intended to reflect p-polarized light. She is trained to be transparent.
  • the functional layer 5.6 is, for example, a metal coating which contains at least one thin-film stack with at least one silver layer and one dielectric layer.
  • An image display device e.g. an LCD
  • An image display device e.g. an LCD
  • can be used to generate p- polarized radiation can be provided and directed onto the functional layer 5.6, so that it is irradiated with a p-polarized light through the inner pane 5.2.
  • the vehicle glazing 5 has a frame-shaped masking strip 5.4 on the outer window 5.1.
  • the masking strip 5.4 is opaque, preferably black.
  • the masking strip 5.4 is used to cover the bonds and connection structures arranged on the inside of the vehicle glazing 5.4.
  • the masking strip 5.4 can also be designed to be widespread in the lower (motor-side) section of an edge region 9.
  • the section of the edge region 9 has a greater width than in the upper (roof-side) section of the edge region 9 of the vehicle glazing 5.
  • the width is understood to be the dimension of the masking strip 5.4 perpendicular to its extension.
  • the vehicle glazing 5 also includes a mirror structure 5.5, which is located on the inner window 5.2 and spatially in front of the masking strip 5.4.
  • the opaque masking strip 5.4 acts as an opaque background.
  • the mirror structure 5.5 is, for example, a mirror film, with the masking strip 5.4 completely covering the mirror film in the viewing direction.
  • the mirror structure can have aluminum or nickel-chrome.
  • the mirror structure 5.5 is intended to reflect infrared radiation and light.
  • the mirror structure 5.5 has reflective properties that can be electrically switchable.
  • the reflectivity of the mirror structure 5.5 can be different in a first operating mode than in a second operating mode.
  • the mirror structure 5.5 can have two flat control electrodes.
  • the mirror structure 4 can be switched from a, in particular optically, transparent state (i.e. a “non-reflective” state) to a semi-transparent state or reflective state (reflective state).
  • the semi-transparent state is an intermediate state between the transparent and the reflective state, so that the mirror structure 5.5 is dimmable. If the vehicle glazing 5 is irradiated with images in the area of the mirror structure 5.5, these images are reflected. In front of the opaque masking strip 5.4, the images reflected by the mirror structure 5.5 appear bright and easily recognizable.
  • the mirror structure 5.5 is arranged on the first surface III of the inner pane 5.2, with the transparent functional layer 5.6 being applied to the surface III.
  • the mirror structure 5.5 can be arranged between the inner pane 5.2 and the thermoplastic intermediate layer 5.3. Because the mirror structure 5.5 is positioned on the second surface III of the inner pane 5.2, it is protected there from environmental influences Pollution protected. Alternatively, the mirror structure 5.5 can be attached to the first surface (IV) of the inner pane 5.2, as shown in Figure 4.
  • the mirror structure 5.5 is arranged in the edge region 9 near the lower edge of the vehicle glazing 5.
  • a distance between the mirror structure 5.5 and an edge of the outer pane 5.1 can be 6 cm, 8 cm or 10 cm.
  • the mirror structure 5.5 can be arranged in the upper section of the edge region 9 or on a side section of the edge region 9.
  • An edge-side arrangement is of course advantageous and expedient when using and designing the vehicle glazing 5 as a windshield in order to meet the required requirements for the driver's field of vision.
  • the mirror structure 5.5 can be designed to be coherent, in particular in one piece.
  • the mirror structure 5.5 can extend along an edge, in particular the lower edge, of the vehicle glazing 5, so that a circumferential image (from one side edge to an opposite side edge) can be generated.
  • Above the mirror structure 5.5 extends in several, for example three or four, sections, which are arranged in the lower (motor-side) edge region 9.
  • the arrangement 1 includes a radiation source 7 for emitting infrared radiation 13 and a radiation receiver s for receiving infrared radiation (IR) and light, which are installed in a module (unit).
  • the radiation receiver 8 includes an 8.1 infrared sensor for receiving infrared radiation and a light sensor 8.2 for detecting light.
  • the light sensor 8.2 provides different (detection) information than the infrared sensor 8.1.
  • the module is installed here, for example, in the rear area of the dashboard 6 (also called the console).
  • the radiation receiver 8 can be arranged centrally on the dashboard of the vehicle. This arrangement of the radiation receiver 8 allows several faces to be detected at the same time.
  • the radiation source 7 is positioned so that the infrared radiation 13 is directed onto the surface IV of the inner pane 5.2 and is reflected there by the mirror structure 5.5 as the first reflection radiation 14 to the face of the vehicle user 3.
  • the radiation source 7 is arranged so that the infrared radiation falls on the face of a vehicle user 3 and in particular the area around his eyes.
  • a light beam 11 is reflected from the face of the vehicle user 3 in the direction of the mirror structure 5.5 and detected by the mirror structure 5.5 as a light reflection 12 by the light sensor 8.2.
  • Figure 2 shows a top view of a vehicle glazing from Figure 1.
  • the mirror structure 5.5 is arranged in an extension along the lower section of the edge region 9 of the vehicle glazing 5.
  • the mirror structure 5.5 is in direct contact with the first surface (III) of the inner pane 5.2.
  • the mirror structure 5.2 is made in one piece.
  • the mirror structure 5.2 can be divided into several sections. The number of sections can vary widely.
  • the mirror structure 5.5 can be divided into 2, 4, 6 or 8 sections.
  • FIG. 3 shows a cross-sectional view of a first embodiment of the vehicle glazing 5 in the area of the mirror structure 5.5.
  • the cross-sectional view of Figure 3 corresponds to the section line AA' ( Figure 2) in area Z of the mirror structure 5.5.
  • the masking strip 5.4 is preferably applied as a ceramic black print to the second surface II of the outer pane 5.1.
  • the masking strip 5.4 consists of a coating containing an opaque, electrically non-conductive material, for example a black-colored screen printing ink that is baked.
  • the mirror structure 5.5 is arranged on the inner pane 5.2, with the transparent functional layer 5.6 being applied to the first surface III of the inner pane 5.2.
  • the mirror structure 5.5 and the masking strip 5.4 are separated from one another by the thermoplastic intermediate layer 5.3.
  • the distance between mirror structure 5.5 and masking strip 5.4 can be less than 3 millimeters, for example 0.76 millimeters or 0.38 millimeters. At a distance of less than 3 millimeters, very clear reflection images are achieved.
  • Figure 4 shows a cross-sectional view of a further embodiment of the vehicle glazing 5 in the area of the mirror structure 5.5.
  • the cross-sectional view of Figure 4 corresponds to the section line AA '( Figure 2) in area Z of the mirror structure 5.5.
  • the masking strip 5.4 is preferably applied as a ceramic black print to the second surface II of the outer pane 5.1.
  • the masking strip 5.4 consists not only of a coating containing an opaque, electrically non-conductive material, for example a black-colored screen printing ink that is baked.
  • the vehicle glazing 5 has an inserted, opaque element as a further masking strip 5.4 '.
  • the further masking strip 5.4' is colored thermoplastic intermediate layer, for example a colored or tinted PVB film.
  • the mirror structure 5.5 is not located between the outer pane 5.1 and the thermoplastic intermediate layer 5.3, but on the first surface IV of the inner pane 5.2.
  • the marking strip 5.4 arranged on the surface II and the further masking strip 5.4 ' are separated from each other in this embodiment by the thermoplastic intermediate layer 5.3.
  • the distance between the masking strips 5.4 and 5.4' can be less than 3 millimeters, for example 0.76 millimeters or 0.38 millimeters.
  • the mirror structure 5.5 and the masking strip 5.4' are separated from each other by the inner pane 5.2.
  • the further masking strip 5.4' is arranged on the inner pane 5.2, with the transparent functional layer 5.6 being applied to the first surface III of the inner pane 5.2.
  • a protective layer can be arranged on the surface of the mirror structure 5.5 facing the vehicle interior 10.
  • the protective layer seals the surface of the mirror structure 5.5 to the surrounding atmosphere.
  • the intended protective layer thus forms, at least in the area of the mirror structure 5.5, the first, outer surface of the vehicle glazing 5, which is directed towards the interior in the installed position, and advantageously protects it and the mirror structure 5.5 from external influences and contamination.
  • the protective layer can be designed as a hydrophobic film, which is a coating with good resistance to deposits, for example from liquids, salts, fats and dirt. For example, the creation of fingerprints can be avoided when touched by a user.

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  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Traffic Control Systems (AREA)

Abstract

La présente invention concerne un agencement (1) pour un système d'aide à la conduite (100) d'un véhicule (2), comprenant : une source de rayonnement (7) pour émettre un rayonnement infrarouge, un récepteur de rayonnement (8, 8,1) pour recevoir un rayonnement infrarouge, un vitrage de véhicule (5) ayant une bande de masquage (5.4) et une structure de miroir réfléchissant le rayonnement infrarouge (5.5), et le récepteur de rayonnement (8) a un capteur de lumière (8.2).
PCT/EP2023/065924 2022-06-30 2023-06-14 Agencement pour un système d'aide à la conduite WO2024002696A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202380010461.4A CN117642781A (zh) 2022-06-30 2023-06-14 用于驾驶员辅助系统的布置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22182287 2022-06-30
EP22182287.7 2022-06-30

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WO2024002696A1 true WO2024002696A1 (fr) 2024-01-04

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CN (1) CN117642781A (fr)
DE (1) DE202023002828U1 (fr)
WO (1) WO2024002696A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060066508A1 (en) 2001-01-16 2006-03-30 Walck Scott D Image display system utilizing light emitting material
US20100253526A1 (en) 2009-04-02 2010-10-07 Gm Global Technology Operations, Inc. Driver drowsy alert on full-windshield head-up display
US20150124068A1 (en) * 2013-11-05 2015-05-07 Dinu Petre Madau System and method for monitoring a driver of a vehicle
US20220152991A1 (en) * 2019-03-29 2022-05-19 Sekisui Chemical Co., Ltd. Laminated glass and vehicle system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060066508A1 (en) 2001-01-16 2006-03-30 Walck Scott D Image display system utilizing light emitting material
US20100253526A1 (en) 2009-04-02 2010-10-07 Gm Global Technology Operations, Inc. Driver drowsy alert on full-windshield head-up display
US20150124068A1 (en) * 2013-11-05 2015-05-07 Dinu Petre Madau System and method for monitoring a driver of a vehicle
US20220152991A1 (en) * 2019-03-29 2022-05-19 Sekisui Chemical Co., Ltd. Laminated glass and vehicle system

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