WO2022253975A1 - Composant pour un véhicule automobile, comprenant un support de tableau de bord et une unité, et procédé de fourniture dudit composant - Google Patents

Composant pour un véhicule automobile, comprenant un support de tableau de bord et une unité, et procédé de fourniture dudit composant Download PDF

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Publication number
WO2022253975A1
WO2022253975A1 PCT/EP2022/065107 EP2022065107W WO2022253975A1 WO 2022253975 A1 WO2022253975 A1 WO 2022253975A1 EP 2022065107 W EP2022065107 W EP 2022065107W WO 2022253975 A1 WO2022253975 A1 WO 2022253975A1
Authority
WO
WIPO (PCT)
Prior art keywords
strut
cross member
unit
connection point
instrument panel
Prior art date
Application number
PCT/EP2022/065107
Other languages
German (de)
English (en)
Inventor
Alexander GÜNTHER
Dominik Tentscher
Original Assignee
Kirchhoff Automotive Deutschland Gmbh
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 Kirchhoff Automotive Deutschland Gmbh filed Critical Kirchhoff Automotive Deutschland Gmbh
Publication of WO2022253975A1 publication Critical patent/WO2022253975A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/14—Dashboards as superstructure sub-units
    • B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/23—Head-up displays [HUD]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle

Definitions

  • Subassembly for a motor vehicle comprising an instrument panel support and a unit, and a method for providing these
  • the invention relates to an assembly for a motor vehicle, comprising an instrument panel support and an assembly, as well as a related manufacturing method.
  • An instrument panel support comprises a cross member as the core component, which is arranged between the two A-pillars, and thus essentially extending in the transverse direction, of a motor vehicle.
  • a cross member as the core component, which is arranged between the two A-pillars, and thus essentially extending in the transverse direction, of a motor vehicle.
  • different aggregates, the pedals, displays, the steering column or the steering column module or air conditioning units are typically connected.
  • Such instrument panels are also referred to as cross car beams.
  • an instrument panel support Against this background, various requirements are placed on an instrument panel support. These relate in particular to its static resilience, specific vibration behavior and adequate crash performance. In particular, the vibration behavior is relevant to any displays carried by or supported by the instrument panel support.
  • An example of such a unit designed as a display is a head-up display.
  • a head-up display must be precisely aligned and kept vibration-free in every driving situation in order to ensure the desired display functionality.
  • struts projecting from the cross member are provided, to which such a unit is connected. These struts support additional Lich the instrument panel support from other parts of the body. Due to the installation situation of the instrument panel support, it is typically supported with its struts for supporting a head-up display on the bulkhead bordering the front of the passenger cell.
  • a number of units that can be mounted on an instrument panel support are designed as optional components, so that a buyer of the vehicle can choose whether he would like to find a certain component in his vehicle or not. This is the case, for example, for
  • the state of the art provides for the instrument panel support to be designed for the most stressful case, the "worst case", so that basically all struts for all possible optional units on the instrument panel support during production of the same can be connected by a welding process. If an optional unit is ordered, this is attached to the corresponding strut or a plurality of the same. If it is not ordered, the connecting struts provided are still available and support the dashboard support, but remain unused for their intended purpose.
  • DE 102014 112056 B4 and DE 102014 104333 A1 Such an embodiment is disclosed, for example, in DE 102014 112056 B4 and DE 102014 104333 A1.
  • DE 10 2013 212 878 A1, DE 10 2008 012 647 A1, DE 102006025386 A1, DE 102006033556 A1 and DE 102014006876 A1 show further configurations of the connection of an instrument panel support to an end wall. What these disclosures have in common is that they also assume that any strut between the cross member and the bulkhead must be present.
  • an instrument panel carrier is never at the optimum weight in relation to a variant that is delivered without optional units. This, as described in these documents, results in higher resource consumption and higher material and assembly costs. Sometimes the existing struts limit the installation space available for a unit to be mounted on them. against this background, the object of the invention is to propose an assembly and a corresponding manufacturing method which overcomes the disadvantages mentioned.
  • the essence of the invention is to provide an instrument panel support which initially only has one or more attachment points provided by a mechanical structure in the factory. Only if an optional unit that has to be supported on a strut is to be assembled is a strut attached to the cross member or to the connection point provided for this purpose with its distal end during final assembly on the assembly line; with its other distal end it is attached to the end wall for support.
  • the position of the strut in relation to the cross member, in particular in relation to its longitudinal extent, is defined by the connection point. In this way, an interface between the strut and the cross member is provided, which makes it possible to decide only during the final assembly whether such a strut should be assembled or not. In this way, material, assembly time and weight can be saved for those variants in which the strut is not required due to the lack of a unit to be assembled.
  • connection point can be formed by a specific structure of the cross member, which can be designed as a receptacle. However, it is preferably provided that the connection point is designed as a separately manufactured holder connected to the cross member. The advantage is that in such a design, the cross member is not weakened by the connection point. Typically, the bracket is welded to the cross member.
  • the holder can be removed from the crossbeam by means of an extension. gen. This extension then already forms part of the strut connection between tween the cross member and, for example, the front wall. Such a holder ultimately serves the purpose of attaching the strut to the holder, for example with a screw.
  • the holder can also be designed as a receptacle for the strut in order to facilitate assembly. Such a connection can Ver - unlike a material joint connection - are easily made during assembly.
  • connection point is designed as a mechanical interface.
  • a screw is fastened to the connection point with a force fit and/or a form fit. Provision can also be made for the fastening to be detachable in order to enable subsequent replacement or repair.
  • a screw connection or a locking connection can be provided.
  • the strut and the unit are designed as separate components. If the strut is mounted on the cross member, the unit can be attached to it. Alternatively, it can be provided that the strut is preassembled with the unit and the subassembly preassembled in this way is attached to the cross member as a whole.
  • the strut can be shaped along its length so that a U-shaped or hat-shaped receptacle is formed, into which the unit is inserted, so that it can move on at least three sides—in the front and back direction and typically against the force of weight—at least is bordered in sections. In this way, a particularly simple assembly of the unit is possible. In such a configuration, the unit can be set up in its position in the transverse direction to the strut and thus typically in the direction of the longitudinal extent of the cross member of the instrument panel support.
  • the at least one strut is part of the unit or is integrated into it and is therefore non-detachable associated with this. This typically applies to the housing of the unit, even if it can be provided that the strut penetrates the unit. In this way, the extent of the "strut + unit" assembly can be reduced in the y-direction, since the strut and unit do not have to be arranged next to one another. A unit that is larger in the y-direction can therefore be installed in a predefined, available installation space.
  • the housing is typically a molded housing.
  • vibration-optimizing geometries as well as certain geometries for connecting the strut to the cross member, for example to the bulkhead of the vehicle, can be implemented.
  • Another advantage is that there is no mechanical transition between the strut and the unit.
  • the interface between the at least one strut and the connection point on the cross member can be provided for switching on tolerance compensation elements for precise alignment of a unit with respect to the cross member or the end wall. In this way, the existing interface can be optimally used.
  • a distance between the connection point of the strut to the cross member and the connection point to the bulkhead makes it easier to compensate for angle tolerances in particular than with a rigid connection of the strut to the cross member.
  • the at least one strut is made of a material that has a lower specific density than the cross member.
  • a material can be used which cannot be welded to the cross member.
  • material pairings can be used that are optimized in relation to their specific loads. Therefore, when the cross member is designed as a steel component, one or more struts can easily be designed as an aluminum or magnesium die-cast construction. parts or plastic struts can be used.
  • the at least one connection point is arranged in the area of the steering column module, which is also to be connected to the cross member, so that the strut runs above the steering column or the steering column module and the unit is a display, in particular a head-up display.
  • a display is subject to special requirements in terms of vibration resistance: the display, which is projected onto the inside of the windshield in the case of a head-up display, must be easy to read in every driving situation and must not vibrate. For this reason, several struts are often used for reinforcement. However, if the corresponding display is not provided in a variant, the struts provided to reinforce the connection of the display do not need to be installed.
  • the at least one strut can be fastened to the cowl of the bulkhead.
  • the cowl is the upper end of the bulkhead, which is in the transition to the windshield.
  • the strut is fastened to the end wall from above, that is to say with the connecting bolts, such as screws, extending in the z-direction.
  • the connecting bolts such as screws
  • the instrument panel support to have two or more projecting struts, to which the unit is connected or which are at least partially provided by the unit itself. In this way, the unit is stably supported and twisting of the strut around the x-axis is avoided.
  • at least one strut is welded to the cross member and therefore no connection point is provided on the cross member and another strut is attached to a connection point of the cross member.
  • connection which is easy to assemble, does not involve a welding process, but rather an adhesive, screwing or clipping process.
  • a strut for example to support the instrument panel support, is required anyway.
  • This strut can be securely and easily connected to the cross member by welding at the factory. The other strut is then mounted only when required. Provision can also be made for the other strut to be formed by the unit.
  • Unit recording provided for inserting the unit or the unit is connected as part of at least one strut to the instrument panel support, and then passing on the instrument panel support to the next process step and 3b. if not: the dashboard carrier is passed on to the next person
  • a strut is only installed when it is actually needed.
  • the instrument panel carrier is allowed to have a connection point from a first plant, for example from the supplier.
  • the decision as to whether an additional unit is required is made at another plant, typically at the OEM.
  • a holder is connected to the cross member in order to provide a connection point. This can be done as part of a welding process.
  • the instrument panel support is coated, for example KTL-coated. The coating does not prevent subsequent assembly of the additional strut at the connection point.
  • Fig. 1 An assembly according to the invention according to a first embodiment example
  • FIG. 2 an assembly according to the invention according to a second embodiment example.
  • Figure 1 shows an assembly 1, comprising an instrument panel support 2 and a unit 3.
  • the instrument panel support 2 is formed by egg NEN cross member 4, which extends in the transverse direction 5 (y-direction) between the two A-pillars of a motor vehicle, not shown.
  • a steering wheel 7 located in the passenger compartment 6 is shown as part of a steering column module 8.
  • the steering column module 8 is connected to a steering column module support formed by struts 9, 9a, 9b on the cross member 4.
  • the passenger compartment 6 is delimited by an end wall, not shown in the figure.
  • the instrument panel support 2 also has two struts 10 , 11 projecting from the cross member 4 .
  • the strut 10 is welded to the lateral surface of the cross member 4 and has at its opposite end a connection point 12 for connecting the same to the upper end of the bulkhead, the so-called cowl on.
  • the unit 3 is held on the strut 10, specifically with a strut receptacle 13 associated with the unit 3.
  • the unit 3 is a Flead-Up screen. In order to be able to project a clean and sharp image onto the inside of the windshield in any driving situation, this must be connected to the cross member 4 without vibration.
  • a further strut 11 supports the unit 3 on its side opposite the first strut 10 in the y-direction.
  • the strut 11 is integrated into the housing of the unit 3: part of the strut 11 runs inside the housing of the unit 3 or is formed by the housing of the unit 3 itself, another part is provided outside the housing of the unit 3. These longwall extensions, which extend in the x-direction from the housing of the unit 3, can be clearly seen in the figure.
  • the strut 11 has a front wall-side connection point 15 with which it can be locked on the front wall (not shown in detail) or on its cowl.
  • connection point 16 In this exemplary embodiment, this is designed as a holder that is welded to the cross member 4.
  • the connection point 16 defines the point at which the strut 11 is to be attached to the cross member 4 .
  • the strut 11 can be attached to the connection point 16 by means of a screw.
  • the holder 16 has an upper contact surface on which the strut 11 rests with its underside.
  • a tolerance element can be inserted into the interface between the strut 11 and the connection point 16 or its upper end, on which the strut 11 rests with its cross member-side connection point. This is used to align the projection direction of the unit 3 designed as a Flead-Up Display.
  • the strut 11 has been produced using a magnesium die-casting process. In this way, this honeycomb structure can be formed, comprising longitudinal webs 17 and transverse webs 18 (one web of which is identified as an example in FIG. 1). In this way, the rigidity of the strut 11 and thus also its vibrational rigidity is increased.
  • the cross member 4 is made of a different material, for example aluminum or steel. By forming the interface between the strut 11 and the connection point 16 of the cross member 4 as a mechanical interface, these components can be made of different materials. In the embodiment shown, the strut 11 is made of a lighter material. As a result, the weight of the instrument panel support is additionally optimized overall.
  • the unit 3 with its strut 11 is only installed when the driving tool is to be equipped with a head-up display.
  • the connection of the strut 11 to the connection point 16 by means of a mechanical fastening, typically a screw, is carried out on the assembly line. If the vehicle is not to be equipped with a head-up display, the other strut 10 welded to the cross member 4 is sufficient to stabilize the cross member 4 .
  • the support of the Querträ gers 4 on the front wall is not oversized in such a case.
  • FIG. 2 shows a further assembly 1.1 as an alternative embodiment.
  • the instrument panel support 2.1 has no strut opposite the steering column module 8.1 in the z-direction with respect to the cross member 4.1, but only two connection points 16.1, 16a.1, which are also designed as holders welded to the cross member 4.1.
  • struts 11.1, 11a.1 are integrated into the housing of the unit 3.1, in this case cast in one piece with the housing.
  • the end of the struts 11.1, 11a.1 pointing to the cross member 4.1 is tapered in the x-direction towards the respective connection point 16.1, 16a.1 with respect to its z-extension and at the connection points 16.1, 16a.1 fastened by means of unspecified screws.
  • both struts 11.1, 11a.1 have connection points
  • connection points 16, 16.1, 16a.1 on the cross member of the respective instrument panel support 2, 2.1, an interface is created at which easily during assembly of the vehicle on the line as required, a unit 3, 3.1 can be connected.
  • the typically provided joint connection of the connection point(s) to the cross member 4, 4.1 takes place in connection with the open position of the cross member 4, 4.1.
  • a unit 3, 3.1 can be installed or not, without components being installed in the vehicle if they are not installed, which ultimately are not needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un composant (1, 1.1) pour un véhicule automobile. Le composant comprend un support de tableau de bord (2, 2.1) avec une traverse (4, 4.1) qui s'étend sensiblement dans la direction transversale (5) du véhicule automobile et comprend au moins une entretoise (11, 11.1, 11a.1) qui fait saillie à partir de la traverse (4, 4.1) et qui peut être fixée à une paroi d'extrémité délimitant l'habitacle (6) du véhicule automobile sur le côté avant. Le composant comprend également une unité (3, 3.1) qui est supportée par l'au moins une entretoise (11, 11.1, 11a.1), la traverse (4, 4.1) présente au moins un point de fixation (16, 16.1, 16a.1) qui est fourni par une structure et qui est fixé à l'au moins une entretoise (11, 11.1, 11a.1) et au moyen duquel la position dans l'extension longitudinale de la traverse (4, 4.1) pour fixer l'au moins une entretoise (11, 11.1, 11a.1) à la traverse (4, 4.1) est définie. Le support de tableau de bord (2, 2.1) présente deux entretoises mutuellement espacées (10, 11, 11.1, 11a.1) qui font saillie à partir du support de tableau de bord (2, 2.1) et auxquelles l'unité (3, 3.1) est reliée. En particulier, l'invention est caractérisée en ce que l'une des deux entretoises (10) est soudée à la traverse (4), et l'autre entretoise (11) est reliée à un point de fixation (16) du support de tableau de bord (2).
PCT/EP2022/065107 2021-06-02 2022-06-02 Composant pour un véhicule automobile, comprenant un support de tableau de bord et une unité, et procédé de fourniture dudit composant WO2022253975A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021114283.0A DE102021114283A1 (de) 2021-06-02 2021-06-02 Baugruppe für ein Kraftfahrzeug, umfassend einen Instrumententafelträger und ein Aggregat
DE102021114283.0 2021-06-02

Publications (1)

Publication Number Publication Date
WO2022253975A1 true WO2022253975A1 (fr) 2022-12-08

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Family Applications (1)

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PCT/EP2022/065107 WO2022253975A1 (fr) 2021-06-02 2022-06-02 Composant pour un véhicule automobile, comprenant un support de tableau de bord et une unité, et procédé de fourniture dudit composant

Country Status (2)

Country Link
DE (1) DE102021114283A1 (fr)
WO (1) WO2022253975A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025386A1 (de) 2006-05-31 2007-12-06 Siemens Ag Fahrzeugcockpit mit Head-Up-Display
DE102006033556A1 (de) 2006-07-20 2008-01-24 Bayerische Motoren Werke Ag Kraftfahrzeug mit einem Cockpitmodul
WO2008034522A1 (fr) * 2006-09-22 2008-03-27 Bayerische Motoren Werke Aktiengesellschaft Tube porteur d'un tableau de bord d'un véhicule automobile
DE102008012647A1 (de) 2008-03-05 2009-09-10 Daimler Ag Cockpit-Querträger für eine Karosserie eines Personenkraftwagens
DE102013212878A1 (de) 2013-07-02 2015-01-08 Bayerische Motoren Werke Aktiengesellschaft Cockpitstruktur eines Fahrzeugs
DE102014104333A1 (de) 2014-03-27 2015-10-01 Benteler Automobiltechnik Gmbh Instrumententafelträger mit Aufnahme für Head-up-Display
DE102014006876A1 (de) 2014-05-12 2015-11-12 Audi Ag Cockpitquerträger für ein Kraftfahrzeug
DE102014112056B4 (de) 2014-08-22 2018-02-15 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Instrumententafelträgers
FR3066734A1 (fr) * 2017-05-24 2018-11-30 Renault S.A.S Dispositif de fixation d'un boitier a une traverse de planche de bord.
DE102017011493A1 (de) 2017-12-13 2019-06-13 Audi Ag Vorrichtung und Verfahren zur Montage eines Head-Up-Displays

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025386A1 (de) 2006-05-31 2007-12-06 Siemens Ag Fahrzeugcockpit mit Head-Up-Display
DE102006033556A1 (de) 2006-07-20 2008-01-24 Bayerische Motoren Werke Ag Kraftfahrzeug mit einem Cockpitmodul
WO2008034522A1 (fr) * 2006-09-22 2008-03-27 Bayerische Motoren Werke Aktiengesellschaft Tube porteur d'un tableau de bord d'un véhicule automobile
DE102008012647A1 (de) 2008-03-05 2009-09-10 Daimler Ag Cockpit-Querträger für eine Karosserie eines Personenkraftwagens
DE102013212878A1 (de) 2013-07-02 2015-01-08 Bayerische Motoren Werke Aktiengesellschaft Cockpitstruktur eines Fahrzeugs
DE102014104333A1 (de) 2014-03-27 2015-10-01 Benteler Automobiltechnik Gmbh Instrumententafelträger mit Aufnahme für Head-up-Display
DE102014006876A1 (de) 2014-05-12 2015-11-12 Audi Ag Cockpitquerträger für ein Kraftfahrzeug
DE102014112056B4 (de) 2014-08-22 2018-02-15 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung eines Instrumententafelträgers
FR3066734A1 (fr) * 2017-05-24 2018-11-30 Renault S.A.S Dispositif de fixation d'un boitier a une traverse de planche de bord.
DE102017011493A1 (de) 2017-12-13 2019-06-13 Audi Ag Vorrichtung und Verfahren zur Montage eines Head-Up-Displays

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