WO2024046627A1 - Partie de garniture intérieure de véhicule - Google Patents

Partie de garniture intérieure de véhicule Download PDF

Info

Publication number
WO2024046627A1
WO2024046627A1 PCT/EP2023/068613 EP2023068613W WO2024046627A1 WO 2024046627 A1 WO2024046627 A1 WO 2024046627A1 EP 2023068613 W EP2023068613 W EP 2023068613W WO 2024046627 A1 WO2024046627 A1 WO 2024046627A1
Authority
WO
WIPO (PCT)
Prior art keywords
structural
vehicle
connecting line
volume
interior trim
Prior art date
Application number
PCT/EP2023/068613
Other languages
German (de)
English (en)
Inventor
Alexander Hanuschkin
Stefan Studer
Joana Hois
Original Assignee
Mercedes-Benz Group 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 Mercedes-Benz Group AG filed Critical Mercedes-Benz Group AG
Publication of WO2024046627A1 publication Critical patent/WO2024046627A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R2013/0287—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners integrating other functions or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • B60R2021/0407—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings using gas or liquid as energy absorbing means

Definitions

  • the invention relates to an interior trim part according to the preamble of patent claim 1.
  • Interior trim parts are used in a vehicle to design the interior of the vehicle in a variety of embodiments.
  • the properties of the interior trim parts that are determined during the manufacture of the vehicle cannot usually be changed, although this would certainly be desirable for certain applications and purposes.
  • the DE 102020 1 17 138 A1 discloses a motor vehicle comprising at least one vehicle seat with padding that includes a cavity or several cavities made of fluid-tight material, the seat or the motor vehicle comprising a filling device that is designed to fill a first fluid into the cavity or to introduce the cavities, the filling device comprising a storage container, a bladder made of a fluid-tight elastic material being arranged in the storage container, whereby the remaining volume of the storage container lying outside the bladder is also changed by changing the volume of the bladder, the remaining volume and the Cavity or the cavities are part of a fluid volume sealed in a fluid-tight manner, wherein the filling device comprises a conveying device which is designed to convey the first fluid or a second fluid from an external space lying outside the fluid volume into the bladder and thus increase the pressure in the bladder increase.
  • DE 102004 059 874 A1 shows a motor vehicle interior trim part with a carrier and a skin and with controllable means for reversibly changing a distance between the carrier and the skin.
  • a seat element or backrest element is specified, in particular for a vehicle, comprising a cushioning element which has a Has cavity structure, wherein the cavity structure has an elongated cavity and a continuous connection to the elongated cavity.
  • Methods are also specified for adjusting or producing the same seat or backrest element.
  • an assembly intended for this purpose with a shape memory material arranged in a cellular grid is known on the subject of flexible design of interior trim parts of a vehicle.
  • the shape memory material expands when exposed to a liquid, allowing the assembly in this state to effectively absorb kinetic energy from an object upon impact with the assembly. Thermal activation of the shape memory material returns the assembly to its original state.
  • the invention is based on the object of specifying a generic interior trim part that can be changed as desired in a simple yet diverse and flexible manner.
  • each of the reversibly deformable structural elements of the structural surface is part of a closed fluid system containing a system liquid with a certain viscosity and consisting of the structural element, a connecting line and a liquid reservoir.
  • Each reversibly deformable structural element is connected via an associated connecting line to an associated fluid reservoir with a reversibly changeable volume that holds the system fluid.
  • the system liquid circulates within the closed fluid system consisting of the structural element, the connecting line and the liquid reservoir in order to realize a change in volume of the respective structural element.
  • This system fluid can be in Depending on the desired viscosity, it can be designed, for example, as a hydraulic fluid with a low temperature influence on the viscosity, as pure water with a constant low viscosity or as an oil with a high viscosity.
  • the surface force required for a specific volume change of a structural element and the time course of the volume change of a structural element and in particular the relaxation time until the volume change disappears are particularly dependent on the size of the viscosity of the system fluid in the closed fluid system, the design or dimensioning of the connecting line and the elastic Properties of structural element and fluid reservoir.
  • the surface force on a structural element required to change the volume of the structural element as well as the relaxation time can be influenced.
  • the viscosity of the system liquid in different fluid systems can also be chosen to be different by using different system liquids.
  • the viscosity of the system liquid in a fluid system and/or in different fluid systems can also be changed by external influences such as heating or cooling.
  • the liquid reservoir is in particular designed in such a way that when a surface force acts on a structural element, it expands reversibly by receiving the system liquid.
  • a surface force acts on a structural element the system liquid is then pressed from the structural element through the associated connecting line into the associated liquid reservoir, whereby a structural element or the entire structural surface composed of structural elements assumes a smaller volume in this surface state.
  • the system fluid will then become fluid due to gravity and/or Due to the contraction of the liquid reservoir into its basic state within a certain relaxation time, it is pressed from the associated liquid reservoir through the associated connecting line into the structural element, whereby a structural element or the entire structural surface composed of structural elements in this surface state assumes a larger volume after the relaxation time has elapsed.
  • a constriction region with a reduced cross section of the connecting line is formed in a connecting line and a valve is integrated in the connecting line.
  • the constriction area in a connecting line can be designed with any geometric shape, for example funnel-shaped or spiral-shaped, and also have any surface structure of its inner surface, which can be designed, for example, smooth or rough or structured. This can also influence the required surface force on a structural element and the relaxation time until the initial state is reached.
  • a preferably electronically controlled valve is provided in the connecting line of a fluid system in addition to the constriction area or instead of the constriction area, possibly in conjunction with a pressure sensor or a flow sensor in the connecting line of a fluid system
  • the temporal behavior of the fluid system can be determined via the opening state or the closing state of the valve to be influenced.
  • the valve may be open until a surface force is exerted on a structural element. A surface force then applied to a structural element is detected by a pressure sensor via an increase in the pressure in the connecting line or by a flow sensor via an increase in the flow in the connecting line.
  • the valve can then be closed completely or partially, thus preventing or temporarily limiting the backflow of the system fluid from the fluid reservoir.
  • the behavior of the valve can therefore be used to adjust or influence the surface force on a structural element required to change the volume of the structural element and the relaxation time until the initial state without surface force is reached.
  • the valve in the connecting line can be opened in a large number of fluid systems or in all fluid systems of a structural surface, so that the system fluid in the respective fluid systems flows into the respective associated structural elements and thereby the surface condition the structural elements of the structural surface become softer; or the valve in the connecting line is at least partially closed in a plurality of fluid systems or in all fluid systems of a structural surface, so that the flow of the system fluid in the respective fluid systems is slowed down or stopped, whereby the surface condition of the structural elements of the structural surface becomes harder.
  • a valve can be activated depending on the type of dangerous situation detected and/or on vehicle parameters such as the speed of the vehicle and/or on characteristic properties of the occupants of the vehicle such as their weight or body size or posture.
  • a temperature control element is coupled to at least one connecting line and/or to the associated liquid reservoir of a closed fluid system.
  • this temperature control element as a heating element or as a cooling element, for example a piezo element, an icing spray or an outlet opening of the vehicle's air conditioning system, the viscosity of the system liquid circulating in a fluid system or in several fluid systems can be increased by targeted heating of one or more structural elements or by targeted cooling of a structural element or several structural elements can be reduced and thus the behavior of a fluid system or several fluid systems as a whole can be adjusted.
  • this can provide both the required surface force Volume change of a structural element as well as the time course of the volume change of the structural element can be influenced or specified.
  • partial areas of a structural surface with different surface conditions and thus with different characteristics and different properties can also be realized in a simple manner.
  • the structural element in this fluid system can be fixed in its current position and thus its current surface state can be virtually frozen. This means that structural surfaces or partial areas of structural surfaces can also be designed accordingly.
  • the structural elements of the structural surface can be realized in any geometric shape, in particular in a shape that enables the entire structural surface to be covered to be covered with structural elements without gaps or seamlessly.
  • any shape of the structural elements is conceivable which, when put together, form a coherent surface; for example, these structural elements cannot be designed to be uniform.
  • the structural elements are designed as concentric geometric shapes such as concentric circles or concentric squares.
  • the structural elements of the structural surface are formed as polygons with a specific shape, preferably to realize a triangular lattice structure of the entire structural surface to be covered and/or to realize a rectangular lattice structure of the entire structural surface to be covered and/or to realize a hexagonal lattice structure of the entire structural surface to be covered.
  • polygons with different geometric shapes can also be provided in the entire structural surface to be covered, i.e. in this case a design of the entire structural surface to be covered is realized as a combination of polygons with different geometric shapes.
  • Finite element methods can also be used to depict a three-dimensional shape in the vehicle using polygons. This allows location, size, shape, number of corners, etc. according to an optimization algorithm for a three-dimensional structure can be calculated. The net created from this can be used as a template for designing the polygons.
  • a control device is provided in the vehicle, which enables control of the volume change of structural elements of a structural surface and thus also of the entire structural surface.
  • the surface force required for a change in volume of the respective structural elements and/or the time course of the change in volume of the respective structural elements can be specified by the control device, whereby the surface condition of the structural elements and thus the entire structural surface can also be adjusted in a targeted and controlled manner depending on the existing requirements or specific specifications can be.
  • This setting or specification of the surface state of structural elements and thus of the entire structural surface or a partial area of the structural surface can particularly advantageously be carried out as a function of driving dynamics variables of the vehicle detected by sensors of the vehicle, such as the speed of the vehicle or the acceleration of the vehicle, i.e. as a function the respective driving situation of the vehicle and/or predictively depending on future and in particular imminent driving situations of the vehicle or other events.
  • driving dynamics variables of the vehicle detected by sensors of the vehicle such as the speed of the vehicle or the acceleration of the vehicle, i.e. as a function the respective driving situation of the vehicle and/or predictively depending on future and in particular imminent driving situations of the vehicle or other events.
  • the optionally provided temperature control element can also be controlled accordingly by the control unit.
  • the lateral support of a seat of the vehicle can be increased before a curve by reducing the viscosity of the system fluid in its fluid systems by cooling certain or all structural elements provided within the seat.
  • a seat of the vehicle can also be made softer by increasing the viscosity of the system fluid in its fluid systems by heating the structural elements provided within the seat.
  • the seat shape of a seat of the vehicle or the lateral support of a seat of the vehicle can be adapted to the volume of an occupant of the vehicle, if necessary also while the vehicle is driving or temporarily at a certain time interval.
  • the shape of a edition can also be one Seat of the vehicle or on a seat of the vehicle, for example to install a child seat, can be changed with the measures presented.
  • the presented invention provides a high level of occupant protection for the occupants of a vehicle, for example by reducing the risk of injury as a result of a surface condition that is adapted to the vehicle speed and in particular the surface hardness of interior trim parts in the interior of the vehicle.
  • this also ensures a high level of comfort for the occupants of a vehicle, for example through individual padding of interior trim parts in the interior of the vehicle that can be adjusted in terms of surface hardness.
  • the interior or the interior of the vehicle can hereby be individually designed and, in particular, modified depending on the needs of the respective occupants of the vehicle.
  • Fig. 1 A schematic representation of the interior of a vehicle with various interior trim parts with structured surfaces.
  • Fig. 2 A schematic representation of a fluid system for a structural element.
  • Fig. 3 A schematic representation of the change in the surface state of a structural element.
  • Fig. 4 A schematic representation of the change in the surface state of a section of a structural surface with a large number of structural elements.
  • Figure 1 shows a schematic representation of a portion of the interior 2 of a vehicle 1.
  • the structural elements 4 which are seamlessly joined together to form a regular lattice structure, are provided on the interior trim parts 3 of the vehicle 1 attached there, in order to each realize a structural surface 5.
  • the structural elements 4 designed as hexagons are arranged in a regular hexagonal grid filling the entire structural surface 5.
  • the structural elements 4 of a structural surface 5 designed as hexagons are provided, for example, in the door panel 15 of the driver's door 16 of the vehicle 1, the impact pot 18 of the steering wheel 17 of the vehicle 1 and in partial areas 20 on the dashboard 19 of the vehicle 1.
  • surface hardnesses of the surface 13 of certain interior trim parts 3 of the vehicle 1 that are adapted to the vehicle speed can be specified, for example to reduce any consequences of an accident in the event of a crash, or padding elements that can be adjusted in the surface hardness of the surface 13 can be created individually in the interior.
  • a rear-end collision is recognized as unavoidable by a driver assistance system of the vehicle 1 and the surface hardness of a structural surface 5 or several structural surfaces 5 is optimized in such a way that the risk of injury to the occupants of the vehicle 1 is reduced.
  • the specification of the surface hardness of a structural surface 5 or several structural surfaces 5 depends on the speed of the vehicle 1, with softer surfaces 13 of the interior trim parts 3 of the vehicle 1 at lower speeds of the vehicle 1 and harder surfaces 13 of the interior trim parts 3 of the vehicle 1 at higher speeds Vehicle 1 can be adjusted to absorb the impact energy with the lowest possible health risk.
  • the surface hardness of a structural surface 5 of the interior trim parts 3 of the vehicle 1 can also be specified depending on the sizes of the occupants of the vehicle 1 recorded by corresponding sensors in the vehicle 1, such as the weight and stature of the occupants.
  • Each structural element 4 is part of a separate closed fluid system 6, which is shown schematically in FIG.
  • a structural element 4 is connected to the liquid reservoir 8 via the connecting line 7.
  • a constriction area 9 is formed in the connecting line 7.
  • a system liquid 10 circulates in a closed circuit, for example an oil with high viscosity.
  • FIG. 3 shows in principle how the surface state of a structural element 4 is changed as a result of the action of a surface force 11 on the structural element 4.
  • the liquid reservoir 8 is designed in such a way that it can change its volume reversibly, in which, after the force of the surface force 11 on the structural element 4 has ceased, the system liquid 10 returns to its basic state through the connecting line 7 due to gravity 12 and/or the contraction of the liquid reservoir 8 is pushed back into the structural element 4 with the narrowing area 9. Consequently, after a certain period of time without any force acting on the structural element 4, the so-called relaxation time, the initial state of the structural element 4 shown in the left-hand illustration in FIG. 3 with an increased volume of the structural element 4 is assumed again.
  • the surface force 11 on the structural element 4 required for a specific volume change in the fluid system 6 and thus also in the structural element 4 as well as the time course of the volume change in the fluid system 6 and thus also in the structural element 4 depend on the viscosity of the system liquid 10 and the design of the connecting line 7 and its narrowing region 9 as well as the elastic properties of the structural element 4 and the liquid reservoir 8.
  • the viscosity of the system liquid 10 can be varied and thus both the required surface force 11 on the structural element 4 for a change in volume of the structural element 4 and the time course of the change in volume of the structural element 4 can be influenced.
  • the vehicle 1 can have a control device for this purpose, which receives sensor information from sensors of the vehicle 1 and, depending on this, specifies the required surface force 11 on the structural element 4 for a change in volume of the structural element 4 and the time course of the change in volume of the structural element 4.
  • the surface condition of an armrest of the vehicle 1 can be individually adapted to the contour and weight of the arm of the driver or another occupant of the vehicle 1 and/or to the posture of the driver or another occupant of the vehicle 1.
  • the surface force 11 is applied to the structural elements 4 of the structural surface 5 provided there The weight of the driver's arm is applied. If the arm of the driver of the vehicle 1 is removed from the armrest, the surface condition of the armrest of the vehicle 1 returns to the starting position after the weight of the driver's arm has disappeared.
  • the surface condition of an interior trim part 3 of the vehicle 1 is individually designed.
  • the surface 13 of the interior trim part 3 of the vehicle 1 can be reversibly pressed in, for example, to generate information or instructions for occupants of the vehicle 1, for example by designing appropriate symbols such as symbols with arrows or similar pictographic symbols.
  • FIG 4 shows, in principle, for a structural surface 5 with a plurality of structural elements 4, how the surface state of several of these structural elements 4 and thus a partial area 14 of the structural surface 5 is changed as a result of the force exerted by a surface force 11 on the surface 13 of these structural elements 4.
  • the entire structural surface 5 can of course also be changed in surface state as a result of a force exerted by a surface force 11 on all structural elements 4 of this structural surface 5 or as a result of a force exerted by a surface force 11 on a minimum number of structural elements 4 of the structural surface 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne une partie de garniture intérieure pour un véhicule (1), dont la surface (13) est composée, au moins dans une sous-région (14), d'éléments structuraux déformables de manière réversible (4) pour former une surface de structure cohésive (5). Selon l'invention, chaque élément structural déformable de manière réversible (4) de la surface de structure (5) fait partie d'un système de fluide fermé (6) dans lequel un élément structural (4) est raccordé par l'intermédiaire d'une ligne de raccordement (7) à un réservoir de liquide (8), contenant un liquide de système (10), avec un volume variable de manière réversible.
PCT/EP2023/068613 2022-08-30 2023-07-05 Partie de garniture intérieure de véhicule WO2024046627A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022003158.2 2022-08-30
DE102022003158 2022-08-30

Publications (1)

Publication Number Publication Date
WO2024046627A1 true WO2024046627A1 (fr) 2024-03-07

Family

ID=87280253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/068613 WO2024046627A1 (fr) 2022-08-30 2023-07-05 Partie de garniture intérieure de véhicule

Country Status (1)

Country Link
WO (1) WO2024046627A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004009399A1 (fr) 2002-07-18 2004-01-29 Prospective Concepts Ag Coussin pneumatique d'assise et de dossier adaptatif destine a des vehicules et des avions
DE102004059874A1 (de) 2004-12-10 2006-06-14 Faurecia Innenraum Systeme Gmbh Kraftfahrzeug-Innenverkleidungsteil
US20060202492A1 (en) 2005-03-08 2006-09-14 William Barvosa-Carter Reversibly expandable energy absorbing assembly and methods for operating the same
DE102008019045A1 (de) 2008-04-16 2009-10-22 Bayerische Motoren Werke Aktiengesellschaft Sitzelement und/oder Lehnenelement und Verfahren zur Einstellung sowie zur Herstellung desselben
DE102015012339B3 (de) * 2015-09-22 2016-10-27 Audi Ag Kraftfahrzeugbauteil
WO2019029855A1 (fr) * 2017-08-08 2019-02-14 Benecke-Kaliko Ag Élément à surface de forme variable et son procédé de fabrication
DE102017213745A1 (de) * 2017-08-08 2019-02-14 Volkswagen Aktiengesellschaft Verkleidungsteil
DE102020005181B3 (de) * 2020-08-25 2021-08-26 Daimler Ag Fahrzeug, Fahrzeugbauteil und Verfahren zum Betrieb eines Fahrzeugbauteils
DE102020117138A1 (de) 2020-06-30 2021-12-30 Audi Aktiengesellschaft Kraftfahrzeug umfassend einen Fahrzeugsitz mit Polsterung und Fahrzeugsitz

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004009399A1 (fr) 2002-07-18 2004-01-29 Prospective Concepts Ag Coussin pneumatique d'assise et de dossier adaptatif destine a des vehicules et des avions
DE102004059874A1 (de) 2004-12-10 2006-06-14 Faurecia Innenraum Systeme Gmbh Kraftfahrzeug-Innenverkleidungsteil
US20060202492A1 (en) 2005-03-08 2006-09-14 William Barvosa-Carter Reversibly expandable energy absorbing assembly and methods for operating the same
DE102008019045A1 (de) 2008-04-16 2009-10-22 Bayerische Motoren Werke Aktiengesellschaft Sitzelement und/oder Lehnenelement und Verfahren zur Einstellung sowie zur Herstellung desselben
DE102015012339B3 (de) * 2015-09-22 2016-10-27 Audi Ag Kraftfahrzeugbauteil
WO2019029855A1 (fr) * 2017-08-08 2019-02-14 Benecke-Kaliko Ag Élément à surface de forme variable et son procédé de fabrication
DE102017213745A1 (de) * 2017-08-08 2019-02-14 Volkswagen Aktiengesellschaft Verkleidungsteil
DE102020117138A1 (de) 2020-06-30 2021-12-30 Audi Aktiengesellschaft Kraftfahrzeug umfassend einen Fahrzeugsitz mit Polsterung und Fahrzeugsitz
DE102020005181B3 (de) * 2020-08-25 2021-08-26 Daimler Ag Fahrzeug, Fahrzeugbauteil und Verfahren zum Betrieb eines Fahrzeugbauteils

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