EP4561888A1 - Structure de véhicule automobile et véhicule automobile comportant une telle structure - Google Patents
Structure de véhicule automobile et véhicule automobile comportant une telle structureInfo
- Publication number
- EP4561888A1 EP4561888A1 EP23755455.5A EP23755455A EP4561888A1 EP 4561888 A1 EP4561888 A1 EP 4561888A1 EP 23755455 A EP23755455 A EP 23755455A EP 4561888 A1 EP4561888 A1 EP 4561888A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell element
- hollow body
- motor vehicle
- crosspiece
- lower shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
- B62D25/06—Fixed roofs
Definitions
- TITLE Motor vehicle structure and motor vehicle comprising such a structure
- the present invention claims priority from French application 2207773 filed on July 28, 2022, the content of which (text, drawings and claims) is here incorporated by reference.
- the invention relates to the field of motor vehicles, more particularly to the deformation behavior of motor vehicles in the event of a side impact and in the event of a roof impact, and concerns a motor vehicle structure as well as a motor vehicle comprising such a structure.
- the structure of a motor vehicle is generally made up of sheets assembled together to provide rigidity to the structure, forming the framework of the motor vehicle.
- left and right lateral structures equip the structure and each comprise a front vertical element, comprising a front leg, a rear vertical element comprising a rear leg, and a set of upper and upper horizontal elements. lower connecting the front and rear vertical elements.
- Central legs mounted between the front and rear legs connect the base of the vehicle to a roof roof held laterally by beams of a roof arch.
- the present invention aims to overcome the aforementioned drawbacks, and to do so relates to a motor vehicle structure, comprising two roof arch beams connected together by a transverse crossmember, said crossmember comprising at least one lower shell element and at least one upper shell element fixed to said at least one lower shell element, said cross member comprising at least one front hollow body and at least one rear hollow body positioned behind said front hollow body, relative to the longitudinal direction of the structure , said structure being remarkable in that said crosspiece has, at one of said hollow bodies, an offset in transverse length between a transverse end of the upper shell element and a transverse end of the lower shell element.
- the depression is limited at the level of the left or right side structures of structure 1 of the motor vehicle and, consequently, the depression is limited at the level of the passenger compartment of the motor vehicle. .
- said lower shell element defines, with at least one of said roof arch beams, an intermediate hollow body profiled between said front hollow body and said rear hollow body;
- said upper shell element comprises a front side edge, an upturned II portion, behind said front side edge, a central portion, behind said upturned II portion, a rear side edge, behind said central portion, and said lower shell element has a front side edge, facing the front side edge of said upper shell element, a U-shaped portion, facing said reversed II-shaped portion, a central portion, facing the central portion of said upper shell element, a rear side edge, facing - opposite the rear lateral edge of said upper shell element;
- said II portion of the lower hull element defines, with said upturned II portion of the upper hull element, said front hollow body of said cross member;
- said rear lateral edge of the lower shell element defines, with said rear lateral edge of the upper shell element, said rear hollow body of said crosspiece;
- the central portion of the lower shell element defines, with at least one of said roof arch beams, said intermediate hollow body;
- said rear hollow body is profiled in front of a rear lateral edge of said crosspiece, and at least one of said roof arch beams comprises an extension comprising an upward slope extending from the front towards the rear of said structure up to a flat made behind said ascending slope, on which the rear lateral edge of the crosspiece is fixed;
- the rear lateral edge of the crosspiece has at least one countersink at the level of the upper hull element.
- the invention also relates to a motor vehicle comprising a structure, remarkable in that said structure is obtained according to the invention.
- FIG. 1 is a perspective view of a motor vehicle structure according to the invention.
- FIG. 3 partially shows the structure of a motor vehicle according to the invention, in front left isometric view.
- FIG. 4 is an enlargement of zone IV of Figure 3.
- FIG. 5 schematically illustrates the structure of a motor vehicle according to the invention which undergoes a side impact.
- FIG. 6 schematically illustrates the structure of a motor vehicle according to the invention which undergoes a roof impact.
- Structure 1 comprises a set of sheet metal elements, assembled together and forming the framework of the motor vehicle.
- a left lateral structure 3 and a right lateral structure 5 are visible in Figure 1.
- Structure 1 admits a longitudinal median plane of symmetry.
- the description made for the left lateral structure 3 applies by analogy to the right lateral structure 5 of structure 1.
- the left lateral structure 3 comprises a front vertical element 7, comprising a front leg 9, a rear vertical element 11 comprising a rear leg 13, and a set of upper 15 and lower 17 horizontal elements connecting the front vertical elements 7 and rear 11.
- the structure 1 comprises two central legs 19, connecting the base of the vehicle to a roof roof 21 and mounted between the front legs 9 and rear 13 in the longitudinal direction of the structure 1.
- the roof roof 21 is held laterally by beams 23 of a pavilion arch 25.
- the roof roof 21 can be reinforced transversely by a roof crosspiece 27.
- Each beam 23 of the roof arch 25 has the shape of an arc of a circle extending longitudinally relative to the structure 1 of the vehicle.
- the roof crosspiece 27 extends transversely relative to the structure 1, and therefore transversely relative to the beams 23.
- the roof crosspiece 27 has a left transverse end 27a fixed to the left beam 23 and a right transverse end 27b fixed to the right beam 23.
- the fixing between the beams 23 and the roof crosspiece 27 can for example be carried out by welding.
- the crosspiece 27 comprises a lower shell element 29 and an upper shell element 31, superimposed and fixed to the lower shell element 29, in particular by welding.
- the lower shell element 29 is fixed at the level of the left transverse ends 27a and right 27b of the crosspiece 27 on the respective beams 23 of the roof arch 25.
- the crosspiece 27 comprises a front hollow body 33 extending in the longitudinal direction of the crosspiece 27, that is to say transversely relative to the structure 1.
- the front hollow body 33 extends for example over the entire the longitudinal length of the crosspiece 27.
- the front hollow body 33 has for example a polygonal section, in particular substantially rectangular.
- the front hollow body 33 is profiled behind a front lateral edge 35 of the crosspiece 27.
- the crosspiece 27 further comprises a rear hollow body 37, positioned behind the front hollow body 33 relative to the longitudinal direction of the structure 1.
- the rear hollow body 37 extends in the longitudinal direction of the crosspiece 27, that is to say transversely relative to the structure 1.
- the rear hollow body 37 extends for example over the entire longitudinal length of crossbar 27.
- the rear hollow body 37 has for example a polygonal section, in particular substantially trapezoidal.
- the rear hollow body 37 is profiled in front of a rear lateral edge 38 of the crosspiece 27.
- the crosspiece 27 has, at the level of the front hollow body 33, an offset D of transverse length between a transverse end 31a of the upper shell element 31 and a transverse end 29a of the element of lower shell 29.
- the present invention is described with reference to structure 1 in which the offset D is practiced at the level of the front hollow body 33.
- the offset D can alternatively be practiced at the level not of the front hollow body 33, but at the level of the rear hollow body 37.
- the distance of the transverse length offset D between the transverse end 31a of the upper shell element 31 and the transverse end 29a of the lower shell element 29 is between about 40 millimeters and about 50 millimeters.
- the lower shell element 29 of the crosspiece 27 defines, with the roof arch beams 23 25, an intermediate hollow body 39 profiled between said front hollow body 33 and said rear hollow body 37.
- the intermediate hollow body 39 extends in the longitudinal direction of the crosspiece 27, that is to say transversely relative to the structure 1.
- the intermediate hollow body 39 has for example a polygonal section, in particular substantially rectangular.
- the upper shell element 31 has a front side edge 41.
- FIG. 1 Behind the inverted U-shaped portion 43 of the upper shell element 31 extends a central portion 45 and, behind this central portion 45, extends a rear lateral edge 47.
- the lower shell element 29 has a front side edge 49, facing the front side edge 41 of the upper shell element 31.
- the front side edge 41 of the upper shell element 31 defines, with the front side edge 49 of the lower shell element 29, the front side edge 35 of the crosspiece 27.
- the U-shaped portion 51 of the lower shell element 29 defines, with the upturned U-shaped portion 43 of the upper shell element 31, the front hollow body 33 of the crosspiece 27.
- the central portion 53 of the lower shell element 29 defines, with the beam 23, the intermediate hollow body 39.
- the rear lateral edge 55 of the lower shell element 29 defines, with the rear lateral edge 47 of the upper shell element 31, the rear hollow body 37 of the crosspiece 27.
- the rear lateral edge 55 of the lower shell element 29 further defines, with the rear lateral edge 47 of the upper shell element 31, the rear lateral edge 38 of the crosspiece 27.
- the transverse length offset D is practiced at two portions of the crosspiece 27.
- the transverse length offset D is made between a transverse end 41a of the front side edge 41 of the upper shell element 31 and a transverse end 49a of the front side edge 49 of the shell element lower 29.
- the offset D of transverse length is also made between a transverse end 43a of the inverted U-shaped portion 43 of the upper shell element 31 and a transverse end 51 a of the portion in II 51 of the lower shell element 29.
- the transverse length of the central portion 45 of the upper shell element 31 is substantially equal to that of the II-shaped portion 51 of the lower shell element 29.
- the transverse length of the rear lateral edge 47 of the upper shell element 31 is substantially equal to that of the rear lateral edge 55 of the lower shell element 29.
- the front lateral edge 41 of the upper shell element 31 is substantially horizontal relative to the structure 1, that is to say that it is substantially contained in a plane (L, T).
- the inverted II portion 43 of the upper shell element 31, extending from the rear of the front side edge 41, comprises a front side face 57 extending substantially transversely relative to the structure 1, it that is to say that it is substantially contained in a plane (V, T).
- the inverted U-shaped portion 43 of the upper shell element 31 further comprises an upper face 59 extending behind the front side face 57.
- the upper face 59 is substantially horizontal relative to the structure 1, c that is to say that it is substantially contained in a plane (L, T).
- the plane containing the upper face 59 is located above the plane containing the front lateral edge 41, relative to the vertical axis of the structure 1.
- the inverted U-shaped portion 43 of the upper shell element 31 further comprises a rear side face 61, extending from the rear of the upper face 59, substantially transversely relative to the structure 1, this is that is to say that it is substantially contained in a plane (V, T).
- the central portion 45 of the upper shell element 31, extending from the rear of the inverted U-shaped portion 43, is substantially horizontal relative to the structure 1, that is to say it is substantially contained in a plane (L, T).
- the plane containing the central portion 55 is located below the plane containing the upper face 59, relative to the vertical axis of structure 1.
- the rear lateral edge 47 of the upper shell element 31, extending behind the central portion 45, has a front side face 63, extending substantially transversely relative to the structure 1, i.e. that is to say that it is substantially contained in a plane (V, T).
- the rear side edge 47 of the upper shell element 31 further comprises an upper face 65 extending behind the front side face 63.
- the upper face 65 is substantially horizontal relative to the structure 1, it that is to say that it is substantially contained in a plane (L, T).
- the rear side edge 47 of the upper shell element 31 further comprises an upper face 65 extending behind the front side face 63.
- the upper face 65 is substantially flat and is substantially contained in a plane (L, T).
- the plane containing the upper face 65 is located above the plane containing the central portion 45, relative to the vertical axis of the structure 1.
- the plane containing the upper face 65 is located substantially at the same level as the plane containing the upper face 59 of the inverted U-shaped portion 43, relative to the vertical axis of structure 1.
- the plane containing the central portion 69 is located below the plane containing the upper face 65, relative to the vertical axis of structure 1.
- a second countersink 71 connecting the central portion 69 to an upper face 73 substantially contained in a plane (L, T).
- the plane containing the upper face 73 is located above the plane containing the central portion 69, relative to the vertical axis of structure 1.
- the plane containing the upper face 73 is found substantially at the same level as the plane containing the upper face 65 of the rear lateral edge 47 and that containing the upper face 59 of the inverted U-shaped portion 43, relative to the vertical axis of structure 1.
- the front hollow body 33 comprises the upper face 59 and the rear hollow body comprises the upper face 65 and the upper face 73.
- the planes containing each of the upper faces 59, 65, 73 are each located at the same level l one in relation to the other, relative to the vertical axis of structure 1.
- the front lateral edge 49 of the lower shell element 29 is substantially horizontal relative to the structure 1, that is to say that it is substantially contained in a plane (L, T).
- the U-shaped portion 51 of the lower shell element 29, extending from the rear of the front side edge 49, has a front side face 75 extending substantially transversely relative to the structure 1, this is that is to say that it is substantially contained in a plane (V, T).
- the plane containing the front side face 75 is substantially coincident with the plane containing the front side face 57 of the inverted U-shaped portion 43 of the upper shell element 31.
- the U-shaped portion 51 of the lower shell element 29 further comprises a lower face 77 extending behind the front side face 75.
- the lower face 77 is substantially horizontal relative to the structure 1, it is that is to say that it is substantially contained in a plane (L, T).
- the plane containing the lower face 77 is located below the plane containing the front lateral edge 49, relative to the vertical axis of the structure 1.
- the U-shaped portion 51 of the lower shell element 29 further comprises a rear side face 79, extending from the rear of the lower face 77, substantially transversely relative to the structure 1, i.e. that is to say that it is substantially contained in a plane (V, T).
- the plane containing the rear side face 79 is substantially coincident with the plane containing the rear side face 61 of the inverted U-shaped portion 43 of the upper shell element 31.
- the central portion 53 of the lower shell element 29, extending from the rear of the II portion 51, is substantially horizontal relative to the structure 1, that is to say it is substantially contained in a plane (L, T).
- the plane containing the central portion 53 is located above the plane containing the lower face 77, relative to the vertical axis of the structure 1, and above the plane containing the beam 23 relative to the vertical axis of structure 1.
- the plane containing the central portion 53 is located below the planes containing the upper faces 59, 65, 73 of the front hollow bodies 33 and rear 37.
- the intermediate hollow body 39 defined by the space created between the central portion 53 of the lower shell element 29 and the beam 23, is impacted after the first compression stage defined by the front 33 and rear 37 hollow bodies has been compressed.
- the intermediate hollow body then defines in this sense a second vertical compression stage.
- the rear lateral edge 55 of the lower shell element 29, extending behind the central portion 53, has a front side face 81, extending substantially transversely relative to the structure 1, i.e. that is to say that it is substantially contained in a plane (V, T).
- the rear lateral edge 55 of the lower shell element 29 further comprises a lower face extending behind the front lateral face 81.
- the lower face 83 is substantially horizontal relative to the structure 1, it is that is to say that it is substantially contained in a plane (L, T).
- the plane containing the lower face 83 is located below the plane containing the central portion 53, relative to the vertical axis of the structure 1.
- the plane containing the lower face 83 is located substantially at the same level as the plane containing the lower face 77 of the U-shaped portion 51, relative to the vertical axis of the structure 1.
- the rear lateral edge 55 of the lower shell element 29 further comprises an end face 85 extending from the rear of the lower face 83 and connecting the upper face 73 of the upper shell element 31.
- the end face 85 is inclined relative to the vertical axis of the structure 1 and is fixed on the beam 23 of the roof arch 25.
- the beam 23 of the roof arch 25 includes an extension 87 which includes an upward slope 89 extending, from the front towards the rear of the structure 1, from the plane containing the lower face 83 from the lower hull element 29 to a plate 91 made behind the slope 89, on which the rear lateral edge 38 of the crosspiece 27 is fixed.
- the upper face 73 of the rear lateral edge 47 of the upper shell element 31 is fixed to the plate 91, for example by welding.
- the front hollow body 33 is not yet impacted due to the offset D in transverse length between the transverse end 31 a of the upper shell element 31 and the transverse end 29 a of the lower shell element 29.
- FIG. 6 schematically illustrating the structure 1 which undergoes a roof impact occurring in particular when the vehicle rolls over, or rolls over.
- the front hollow body 33 and the rear hollow body 37 are the first impacted by the impact.
- the intermediate hollow body 39 is not yet impacted due to the vertical height offset provided between the central portion 53, defining the upper face of the intermediate hollow body 39, and the upper faces 59, 65, 73 of the front 33 and rear 37 hollow bodies.
- the first compression stage defined by the front hollow bodies 33 and rear 37, is first activated.
- the energy is initially absorbed by the front hollow bodies 33 and rear 37, which compress.
- the resistance of the structure is also increased in the event of a roof impact occurring in particular during a rollover.
- the present invention is described with reference to a vehicle structure 1 comprising a single roof crossmember 27.
- the vehicle structure 1 may include a plurality of roof crosspieces 27.
- the illustrated embodiment shows the roof crosspiece 27 positioned behind the central legs 19 of the structure 1.
- the roof crosspiece 27 can be positioned in the extension of the central legs 19.
- the present invention is described with reference to a vehicle structure 1 comprising three hollow bodies.
- the vehicle structure 1 can comprise only two hollow bodies, since the crosspiece has at one of the two hollow bodies an offset in transverse length between a transverse end of the upper shell element and a transverse end of the lower shell element.
- the present invention is not limited solely to the embodiments of this motor vehicle structure and this motor vehicle provided with such a structure, described above solely by way of illustrative examples. , but on the contrary it embraces all the variants involving the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2207773A FR3138403B1 (fr) | 2022-07-28 | 2022-07-28 | Structure de véhicule automobile et véhicule automobile comportant une telle structure |
| PCT/FR2023/050994 WO2024023418A1 (fr) | 2022-07-28 | 2023-06-29 | Structure de véhicule automobile et véhicule automobile comportant une telle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4561888A1 true EP4561888A1 (fr) | 2025-06-04 |
Family
ID=83355003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23755455.5A Pending EP4561888A1 (fr) | 2022-07-28 | 2023-06-29 | Structure de véhicule automobile et véhicule automobile comportant une telle structure |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4561888A1 (fr) |
| FR (1) | FR3138403B1 (fr) |
| WO (1) | WO2024023418A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1001891B (it) | 1972-11-28 | 1976-04-30 | Australian Wire Ind Pro Prieta | Processo ed apparecchio per la fab bricazione di elementi di rinforzo |
| DE3414844A1 (de) * | 1984-04-19 | 1985-10-31 | Daimler-Benz Ag, 7000 Stuttgart | Aufbau fuer kraftwagen |
| DE10011946A1 (de) * | 2000-03-11 | 2001-09-13 | Opel Adam Ag | Verbindung zwischen dem Dach und der Seitenwand einer Kraftfahrzeugkarosserie |
| FR2921038B1 (fr) * | 2007-09-19 | 2010-01-01 | Peugeot Citroen Automobiles Sa | Structure de carrosserie de vehicule a jonction renforcee entre la traverse avant de pavillon et la doublure du montant de baie de pare-brise |
| FR2976234B1 (fr) * | 2011-06-10 | 2013-06-28 | Peugeot Citroen Automobiles Sa | Carrosserie de vehicule automobile, comprenant un pied milieu et un arceau central encastre dans le pied milieu. |
| FR3080352B1 (fr) | 2018-04-24 | 2020-03-20 | Psa Automobiles Sa | Traverse superieure amortissante pour une structure de vehicule automobile |
-
2022
- 2022-07-28 FR FR2207773A patent/FR3138403B1/fr active Active
-
2023
- 2023-06-29 EP EP23755455.5A patent/EP4561888A1/fr active Pending
- 2023-06-29 WO PCT/FR2023/050994 patent/WO2024023418A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3138403A1 (fr) | 2024-02-02 |
| FR3138403B1 (fr) | 2024-06-14 |
| WO2024023418A1 (fr) | 2024-02-01 |
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