WO2024261007A1 - Sitzquerträgeranordnung eines kraftfahrzeuges sowie kraftfahrzeug mit einer solchen sitzquerträgeranordnung - Google Patents
Sitzquerträgeranordnung eines kraftfahrzeuges sowie kraftfahrzeug mit einer solchen sitzquerträgeranordnung Download PDFInfo
- Publication number
- WO2024261007A1 WO2024261007A1 PCT/EP2024/066999 EP2024066999W WO2024261007A1 WO 2024261007 A1 WO2024261007 A1 WO 2024261007A1 EP 2024066999 W EP2024066999 W EP 2024066999W WO 2024261007 A1 WO2024261007 A1 WO 2024261007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cross member
- vehicle
- seat
- section
- member section
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
- B62D21/03—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members transverse members providing body support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
-
- 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
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- 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
- B62D25/20—Floors or bottom sub-units
-
- 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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
Definitions
- the invention relates to a seat cross member arrangement of a motor vehicle and a motor vehicle with such a seat cross member.
- the invention relates to a seat cross member arrangement according to the preamble of claim 1.
- Such a seat cross member extends in particular through the passenger compartment or underneath the passenger compartment of a motor vehicle.
- EP 3 190 033 A1 discloses a motor vehicle floor structure which is made at least partially from fiber-reinforced plastic to save weight.
- This motor vehicle floor structure is combined with metal frame elements and a metal cross member.
- the metal cross member is to be used to connect a vehicle seat to the vehicle body. Specific structural designs of the motor vehicle floor structure, the metal frame elements or the metal cross member in connection with a vehicle seat for external forces in the transverse direction of the vehicle are not described or shown.
- a vehicle floor structure of a motor vehicle which relates to a design for protecting a battery housing arranged below a passenger compartment. Structural designs of the vehicle floor structure in connection with a vehicle seat for external forces in the transverse direction of the vehicle are not described or shown.
- a protective structure of a motor vehicle which extends from a side sill arranged on the outside of the motor vehicle over two load paths to a central tunnel of the motor vehicle.
- One of the load paths leads over the seat cross member and the other load path over the floor panel.
- a battery housing of a vehicle battery is arranged between the floor panel and the seat cross member in a protected manner when viewed in the vertical direction of the vehicle.
- the invention is based on the object of providing a seat cross member arrangement of a motor vehicle and a motor vehicle with such a seat cross member arrangement, which on the one hand have a low weight and on the other hand offer a high level of protection for a person sitting on a vehicle seat firmly connected to the seat cross member.
- a seat cross member arrangement of a motor vehicle has a seat cross member manufactured in one or more parts, which extends at least from a cross member section on the outside of the vehicle via a seat connection section to a cross member section on the inside of the vehicle, wherein the seat connection section extends at least over the width of the connection elements of a seat. Furthermore, the cross member section on the outside of the vehicle and the cross member section on the inside of the vehicle each adjoin the seat connection section in the transverse direction of the vehicle. When loaded in the transverse direction of the vehicle, the cross member section on the inside of the vehicle is designed for a medium deformation force level, which is higher than the deformation force level in the cross member section on the outside of the vehicle and which is lower than the deformation force level in the seat connection section.
- the invention has a seat cross member arrangement with a two-stage force level.
- this makes it possible to realize the seat cross member using lightweight construction measures with only a low component weight.
- the design can increase the safety of a person transported in a corresponding motor vehicle because the additional cross member section inside the vehicle allows the seat connection section to be moved towards the middle of the vehicle after the area outside the vehicle has already absorbed energy, by at least partially compressing the cross member section inside the vehicle.
- a vehicle seat that is firmly connected to the seat cross member can therefore be moved further towards the middle of the vehicle when viewed in the transverse direction of the vehicle, which creates additional survival space for a person sitting on a vehicle seat.
- the vehicle-outer cross member section is formed by a side sill and/or the vehicle-outer cross member section is formed on the vehicle's inside side of a side sill when viewed in the vehicle's transverse direction.
- the cross member section with the low deformation force level can accordingly be formed at least partially or completely on a side sill itself.
- the vehicle-outer cross member section is formed as part of the cross member, which adjoins the side sill on the inside, as an alternative or in addition to a side sill with a low deformation force level.
- the cross member is preferably firmly connected to the side sills and extends in the vehicle's transverse direction (y-direction) across the entire vehicle width between the respective side sills. This results in a particularly rigid arrangement between the side sills and the seat cross member.
- structural measures are designed to adapt the deformation force level in the cross member section inside the vehicle and/or in the cross member section outside the vehicle.
- This refers in particular to structural adjustments of a cross member that either runs in one piece with a constant cross-sectional profile from a right side sill to the left side sill. This can be achieved, for example, by forming suitable weak points in those areas that have a medium and a low deformation force level.
- a low deformation force level can be achieved by forming hole patterns with larger through-openings, larger recesses and/or stronger and/or larger embossings
- a medium deformation force level can be achieved by forming medium-sized through-openings, medium-sized recesses and/or medium-strong and/or medium-sized embossings.
- Hole patterns with circular through-openings are particularly preferred, with the size of the diameters and/or the distances between the through-openings being varied to vary the force levels.
- the through openings within a cross member section are each at the same distance from one another.
- the seat connection section, the cross member section inside the vehicle and/or the cross member section outside the vehicle can also be formed from separate elements, each of which has a different cross-sectional geometry and/or different cross-sectional sizes and/or different material thicknesses and/or is made of different materials. Accordingly, at least one separate element can be arranged in the cross member section inside the vehicle and/or in the cross member section outside the vehicle to adjust the deformation force level.
- Separate elements are not only those elements that can absorb energy through plastic deformation, but also relatively movable elements, such as hydraulic or pneumatic cylinders or other devices that can be pushed together and thus also deformed when certain deformation forces acting in the transverse direction of the vehicle are exceeded.
- relatively movable elements such as hydraulic or pneumatic cylinders or other devices that can be pushed together and thus also deformed when certain deformation forces acting in the transverse direction of the vehicle are exceeded.
- One advantage of such cylinders or other devices is that they can be moved back to their original position by exerting a counterforce, so that a deformation caused by a crash is reversible and can be reversed. Replacing the element is therefore not absolutely necessary even after an accident. It may be sufficient to return the relatively movable element to its original state.
- At least one tailored blank is formed or arranged in the cross member section inside the vehicle and/or in the cross member section outside the vehicle to adjust the deformation force level.
- tailored welded blanks, tailored rolled blanks, tailored strips, tailored tubes and tailored orbitals which are particularly suitable for the design and structural design of cross member sections both individually and in combination.
- the seat cross member in the vehicle outer cross member section, in the seat connection section and/or in the vehicle inner cross member section each has the same profile height, in particular if this applies to all of the sections mentioned, a structurally preferred variant results because a compact design with a flat surface of the vehicle floor can then be realized.
- individual cross member sections have a reduced cross-sectional area that does not protrude upwards compared to the top of the adjacent sections.
- at least one profile cross section is designed to vary in at least one dimension in order to adapt the deformation force level in the cross member section inside the vehicle and/or in the cross member section outside the vehicle.
- step-free transitions between individual elements of a seat cross member formed in multiple parts can be produced, for example a transition in the vertical direction of the vehicle from a side sill via an outer cross member section to a seat connection section or a transition from a seat connection section via a cross member section inside the vehicle to a cross member middle section that adjoins further inside the vehicle.
- the invention relates in particular to seat cross member arrangements in which a battery housing of a traction battery is arranged below the seat cross member. It is preferred if the battery housing is designed in such a way that the battery cells arranged therein are not damaged if the cross member section on the outside of the vehicle is deformed or at least there is no risk of the battery cells being set on fire due to the effect of external forces.
- the vehicle outer cross member section is designed relative to the vehicle inner cross member section such that when a force acts on the seat cross member from the outside in the vehicle transverse direction, a compression of the vehicle outer cross member section is caused in a first deformation stage and only when further energy is to be dissipated, a compression of the vehicle inner cross member section is caused in a second deformation stage.
- the invention also relates to a motor vehicle with a seat cross member arrangement as described above.
- motor vehicles which have two, three or four seat cross member arrangements running parallel to one another, as described above, per vehicle seat or vehicle seat row.
- reference is also made to motor vehicles with one or more vehicle seats or vehicle seat rows, wherein the one vehicle seat or the several vehicle seats or vehicle seat rows are firmly connected to the respective seat connection section.
- Fig. 1 a motor vehicle in a side view with dashed areas in which a seat cross member arrangement according to the invention can be located within the motor vehicle,
- Fig. 2 shows a first embodiment of a seat cross member arrangement according to the invention in a schematic sectional view in the y-z plane of the motor vehicle
- Fig. 3 is a schematic representation of the deformation force levels Foef over the deformation path s of the cross member arrangement in the vehicle outer seat cross member section, in the seat connection section and in the vehicle inner seat cross member section,
- Fig. 4 shows a further embodiment of a seat cross member arrangement according to the invention in a schematic sectional view in the y-z plane of the motor vehicle
- Fig. 5 shows a further embodiment of a seat cross member arrangement according to the invention in a schematic sectional view in the y-z plane of the motor vehicle and
- Fig. 6 shows a further embodiment of a seat cross member arrangement according to the invention in a schematic sectional view in the y-z plane of the motor vehicle.
- x indicates the vehicle's longitudinal direction (x-direction) forward
- y indicates the vehicle's transverse direction (y-direction)
- z indicates the vehicle's vertical direction (z-direction) upward.
- Figure 1 shows a motor vehicle 10 in a side view.
- the left front wheel 12, the left rear wheel 14, the left side sill 16 extending from the front wheel 12 to the rear wheel 14, a front left door 18 and a rear left door 20 can be seen.
- two seat cross member arrangements according to the invention are arranged (not shown in Figure 1), which are explained below in connection with Figure 2.
- the seat cross member arrangement according to the invention shown in Figure 2 has a seat cross member 22 manufactured in several parts, which extends from a cross member section 24 on the outside of the vehicle via a seat connection section 26 to a cross member section 28 on the inside of the vehicle.
- the seat connection section 26 extends over a width that is greater than the distance from connection elements 30 of a seat 32 extending in the transverse direction of the vehicle (y-direction). In the embodiment shown, the width of the seat connection section 26 is also selected to be greater than the maximum width of the seat 32.
- the vehicle-outer cross member section 24 and the vehicle-inner cross member section 28 each directly adjoin the seat connection section 26 in the transverse direction of the vehicle. Further inside the vehicle-interior cross member section 28, in the embodiment shown, a cross member middle section 40 adjoins.
- a battery housing 42 is arranged on the underside of the seat cross member 22 and the side sill 16. This is an optional element, i.e. the seat cross member arrangement can also be implemented independently of the battery housing 42 in a motor vehicle.
- the vehicle outer cross member section 24 is considered to extend beyond the side sill 16.
- the side sill 16 is formed by two half shells 34, 36 connected to one another via flanges. The connection is designed in particular as a welded connection.
- a crash element 38 is arranged within the side sill 16.
- the vehicle-interior cross member section 28 is designed for a medium deformation force level, which is higher than the deformation force level in the vehicle-outterior cross member section 24 and which is lower than the deformation force level in the seat connection section 26.
- This design serves to initially absorb the kinetic energy introduced into the cross member arrangement by the action of the post 44 exclusively by deforming the vehicle-outterior cross member section 24. This is preferably done in a first deformation stage by plastic deformation of the vehicle-outterior cross member section 24, preferably by folding or other deformation, to a block dimension.
- the vehicle-interior cross member section 28 is completely or partially deformed in a second deformation stage. compressed in order to dissipate further kinetic energy.
- the seat 32 is thereby displaced further towards the center of the vehicle due to the compression, whereby a person sitting on the seat 32 is further protected from intrusion by the pole 44.
- the survival space for the person is displaced towards the center of the vehicle due to the seat cross member arrangement according to the invention at the start of the second deformation stage, whereby the safety and the probability of survival for a person sitting on the seat 32 is further increased.
- the deformation force level in the entire vehicle outer cross member section 24, which in this embodiment also includes the side sill 16 is at the comparatively lowest force level L1, for example in a range between 100 kN and 1,000 kN.
- the deformation force level is designed to an average force level L2 that is higher than the force level L1, for example in a range between 1,000 kN and 2,000 kN.
- the deformation force level is designed for a high force level L3, which is even higher than the force level L2.
- the deformation force level is also preferably higher than the force level L2, for example also L3.
- the force levels L1, L2 and L3 are formed by suitable hole patterns 46 in the respective cross member sections 28, 24. These are only shown schematically in Figure 2.
- FIGS 4-6 show further embodiments of seat cross member arrangements according to the invention, wherein the same reference numerals as in Figures 1 and 2 are used for identical or at least functionally equivalent elements.
- a cylinder 48 is arranged in the vehicle interior seat cross member section 28, which is set to the force level L2, which is higher than the force level L1, which is used for plastic deformation in the vehicle exterior seat cross member section 24 is required.
- the cylinder 48 can in particular be a hydraulic or pneumatic damper.
- a tailored blank 50 shown only schematically, is arranged in the vehicle-interior seat cross member section 28, which is set to the force level L2, which is higher than the force level L1 required for plastic deformation in the vehicle-outer seat cross member section 24.
- a tailored blank 52 is also arranged in the vehicle-outer seat cross member section 24.
- the cross-sectional area A3 in the seat connection section 26 is in turn larger than the cross-sectional area A2.
- the cross-sectional areas Ai, A2 and A2 are selected such that the force level L1 for the plastic deformation in the vehicle-outterior cross-member section 24, the force level L2 in the vehicle-interior cross-member section 28 and the force level L3 in the seat connection section 26 in turn result in plastic deformation.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24736663.6A EP4727825A1 (de) | 2023-06-19 | 2024-06-18 | Sitzquerträgeranordnung eines kraftfahrzeuges sowie kraftfahrzeug mit einer solchen sitzquerträgeranordnung |
| CN202480040420.4A CN121358652A (zh) | 2023-06-19 | 2024-06-18 | 机动车的座椅横梁装置和具有座椅横梁装置的机动车 |
| US19/427,090 US20260116264A1 (en) | 2023-06-19 | 2025-12-19 | Transverse support arrangement for a seat of a motor vehicle, and motor vehicle having such a transverse support arrangement for a seat |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023205721.2 | 2023-06-19 | ||
| DE102023205721.2A DE102023205721A1 (de) | 2023-06-19 | 2023-06-19 | Sitzquerträgeranordnung eines Kraftfahrzeuges sowie Kraftfahrzeug mit einer solchen Sitzquerträgeranordnung |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US19/427,090 Continuation US20260116264A1 (en) | 2023-06-19 | 2025-12-19 | Transverse support arrangement for a seat of a motor vehicle, and motor vehicle having such a transverse support arrangement for a seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024261007A1 true WO2024261007A1 (de) | 2024-12-26 |
Family
ID=91672418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/066999 Ceased WO2024261007A1 (de) | 2023-06-19 | 2024-06-18 | Sitzquerträgeranordnung eines kraftfahrzeuges sowie kraftfahrzeug mit einer solchen sitzquerträgeranordnung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20260116264A1 (de) |
| EP (1) | EP4727825A1 (de) |
| CN (1) | CN121358652A (de) |
| DE (1) | DE102023205721A1 (de) |
| WO (1) | WO2024261007A1 (de) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010045997A1 (de) * | 2010-05-10 | 2011-11-10 | Volkswagen Ag | Kraftfahrzeug mit einer crashsicheren Batterie-Box im Mitteltunnel |
| EP3190033A1 (de) | 2015-12-07 | 2017-07-12 | Toyota Jidosha Kabushiki Kaisha | Fahrzeugbodenkonstruktion |
| US20170217297A1 (en) | 2014-10-23 | 2017-08-03 | Chery Automobile Co., Ltd | Automobile battery protection structure |
| EP3177506B1 (de) * | 2014-08-04 | 2018-09-12 | PSA Automobiles SA | Fussboden mit querträger mit einem kompressiv verformbaren teil |
| US10899389B2 (en) * | 2018-01-12 | 2021-01-26 | Toyota Jidosha Kabushiki Kaisha | Vehicle substructure |
| US20220144063A1 (en) | 2020-11-11 | 2022-05-12 | Honda Motor Co., Ltd. | Vehicle body structure |
| US11351890B2 (en) * | 2019-12-06 | 2022-06-07 | Hyundai Motor Company | Seat crossmember and vehicle floor structure having the same |
-
2023
- 2023-06-19 DE DE102023205721.2A patent/DE102023205721A1/de active Pending
-
2024
- 2024-06-18 WO PCT/EP2024/066999 patent/WO2024261007A1/de not_active Ceased
- 2024-06-18 CN CN202480040420.4A patent/CN121358652A/zh active Pending
- 2024-06-18 EP EP24736663.6A patent/EP4727825A1/de active Pending
-
2025
- 2025-12-19 US US19/427,090 patent/US20260116264A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010045997A1 (de) * | 2010-05-10 | 2011-11-10 | Volkswagen Ag | Kraftfahrzeug mit einer crashsicheren Batterie-Box im Mitteltunnel |
| EP3177506B1 (de) * | 2014-08-04 | 2018-09-12 | PSA Automobiles SA | Fussboden mit querträger mit einem kompressiv verformbaren teil |
| US20170217297A1 (en) | 2014-10-23 | 2017-08-03 | Chery Automobile Co., Ltd | Automobile battery protection structure |
| EP3190033A1 (de) | 2015-12-07 | 2017-07-12 | Toyota Jidosha Kabushiki Kaisha | Fahrzeugbodenkonstruktion |
| US10899389B2 (en) * | 2018-01-12 | 2021-01-26 | Toyota Jidosha Kabushiki Kaisha | Vehicle substructure |
| US11351890B2 (en) * | 2019-12-06 | 2022-06-07 | Hyundai Motor Company | Seat crossmember and vehicle floor structure having the same |
| US20220144063A1 (en) | 2020-11-11 | 2022-05-12 | Honda Motor Co., Ltd. | Vehicle body structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121358652A (zh) | 2026-01-16 |
| US20260116264A1 (en) | 2026-04-30 |
| EP4727825A1 (de) | 2026-04-22 |
| DE102023205721A1 (de) | 2024-12-19 |
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