WO2026037449A1 - Structure de corps de véhicule automobile - Google Patents

Structure de corps de véhicule automobile

Info

Publication number
WO2026037449A1
WO2026037449A1 PCT/DE2025/100629 DE2025100629W WO2026037449A1 WO 2026037449 A1 WO2026037449 A1 WO 2026037449A1 DE 2025100629 W DE2025100629 W DE 2025100629W WO 2026037449 A1 WO2026037449 A1 WO 2026037449A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
longitudinal
cross member
body structure
profile
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
Application number
PCT/DE2025/100629
Other languages
German (de)
English (en)
Inventor
Matthias Neuhauser
Michael Hainzinger
Juergen LESCHHORN
Hendrik Waecken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of WO2026037449A1 publication Critical patent/WO2026037449A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B60N2/015—Attaching seats directly to vehicle chassis
    • 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
    • B62D25/04—Door pillars ; windshield pillars
    • 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
    • B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures
    • 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
    • B62D25/2045—Floors or bottom sub-units in connection with other superstructure subunits the subunits being fire walls

Definitions

  • the invention relates to a body structure for a motor vehicle body according to claim 1.
  • DE 102020 129 748 A1 discloses an energy storage floor assembly for an electrically powered passenger car, comprising a floor assembly on the underside of which an energy storage device of an electric drive of the passenger car is arranged, a retaining element by means of which a rear end area of the energy storage device is held on the underside of the floor assembly, and a rear axle carrier which is arranged on the underside of the floor assembly and in the longitudinal direction of the vehicle behind the energy storage device.
  • the purpose of the invention is to create a body structure for the body of an electrically powered motor vehicle, so that the safety and comfort of the motor vehicle can be particularly increased.
  • the invention relates to a body structure for the body of an electrically powered motor vehicle, or for the electrically powered motor vehicle itself.
  • the motor vehicle is, for example, a passenger car.
  • the motor vehicle particularly in its fully manufactured state, comprises the body, and in particular the body structure.
  • the body particularly in its fully manufactured state, comprises the body structure.
  • the motor vehicle is electrically powered
  • the motor vehicle has at least one electric motor by means of which the motor vehicle can be powered or is powered.
  • the The motor vehicle is designed as a battery-electric vehicle or as a hybrid vehicle.
  • the motor vehicle has at least one electrical energy storage device.
  • the electrical energy storage device can be, in particular, a battery or an accumulator.
  • the electric motor can be supplied with electrical energy, in particular energy stored or chemically bound in the electrical energy storage device, to power the motor vehicle.
  • the electrical energy storage device is designed as an underfloor storage device, in particular as an underfloor battery.
  • the electrical energy storage device is arranged, for example, in the vertical direction of the vehicle under a floor element of the body.
  • the electrical energy storage device is arranged on a downward-facing underside of the motor vehicle, in particular of the body, in the vertical direction of the vehicle.
  • the floor element is, for example, designed as the main floor.
  • the body is preferably designed as a self-supporting structure.
  • the body structure is, for example, a floor assembly for the body.
  • the floor assembly is at least partially formed by the body structure.
  • the body structure can be understood as a body structure that forms the floor assembly.
  • the body structure has a bulkhead that at least partially, and in particular, completely, defines the interior space in the longitudinal direction of the vehicle.
  • the interior space which can be referred to as the vehicle interior, can be understood to be, in particular, a passenger compartment or passenger cell.
  • the longitudinal direction of the vehicle refers to the longitudinal direction of the motor vehicle.
  • the interior space is at least partially, for example, predominantly or completely, defined by the body.
  • the bulkhead is, for example, part of a bulkhead structure of the body structure.
  • the bulkhead structure can include at least the bulkhead.
  • the body structure has at least one longitudinal member, in particular formed separately from the bulkhead and/or separately from the bulkhead structure, which projects forward in the longitudinal direction of the vehicle, in particular at least indirectly or directly, from the bulkhead.
  • the longitudinal member connects to the bulkhead at least indirectly, in particular directly, in the longitudinal direction of the vehicle.
  • the longitudinal member is connected to the front wall or front wall structure.
  • a main extension direction of the longitudinal member preferably runs at least substantially in the longitudinal direction of the vehicle.
  • the longitudinal member is connected, in particular at least indirectly or directly, to the front wall, especially the front wall structure.
  • the body structure has a first crossmember, which is formed separately from the longitudinal member and/or the bulkhead, against which the longitudinal member is supported in the longitudinal direction of the vehicle to the rear, in particular at least indirectly or directly.
  • first crossmember is, for example, part of the bulkhead structure.
  • the bulkhead structure can include the first crossmember.
  • the first crossmember can therefore be referred to as the bulkhead crossmember, in particular as the first bulkhead crossmember.
  • a main extension direction of the first crossmember runs at least substantially in the transverse direction of the vehicle.
  • the body structure further comprises at least one outer longitudinal profile connected to the first crossmember, in particular at least indirectly or directly.
  • the outer longitudinal profile is, for example, designed as a longitudinal member, i.e., a further longitudinal member, which is distinct from the first crossmember.
  • the outer longitudinal profile is designed separately from the first crossmember.
  • the outer longitudinal profile extends rearward in the longitudinal direction of the vehicle, in particular at least indirectly or directly, from the first crossmember.
  • the outer longitudinal profile adjoins the first crossmember rearward in the longitudinal direction of the vehicle, in particular at least indirectly or directly, and extends at least substantially in the longitudinal direction of the vehicle.
  • the outer longitudinal profile is arranged at least partially, in particular predominantly or completely, further rearward in the longitudinal direction of the vehicle than the first crossmember.
  • the outer longitudinal profile is arranged further outward in the transverse direction of the vehicle than the longitudinal member. In other words, the outer longitudinal profile extends further outward in the transverse direction of the vehicle than the longitudinal member.
  • the body structure has at least one inner longitudinal profile, which is connected to the first crossmember, in particular at least indirectly or directly, and is specifically designed separately from the outer longitudinal profile.
  • the inner longitudinal profile is For example, it can be designed as a longitudinal member, specifically as a separate longitudinal member, distinct from the first cross member.
  • the inner longitudinal profile is designed separately from the first cross member.
  • the inner longitudinal profile extends rearward in the longitudinal direction of the vehicle, particularly at least indirectly or directly, from the first cross member.
  • the inner longitudinal profile adjoins the first cross member rearward in the longitudinal direction of the vehicle, particularly at least indirectly or directly, and in particular, the inner longitudinal profile is positioned at least partially further rearward in the longitudinal direction of the vehicle than the first cross member.
  • the inner longitudinal profile is positioned further inward in the transverse direction of the vehicle than the longitudinal member.
  • the inner longitudinal profile extends further inward in the transverse direction of the vehicle than the longitudinal member.
  • the inner longitudinal profile is positioned further inward in the transverse direction of the vehicle than the outer longitudinal profile.
  • the body structure features a second crossmember arranged in the longitudinal direction of the vehicle behind the first crossmember, which is specifically designed separately from the first crossmember, the outer longitudinal profile, and/or the inner longitudinal profile.
  • the second crossmember extends further rearward in the longitudinal direction of the vehicle than the first crossmember.
  • one of the main directions of extension of the second crossmember runs at least substantially in the transverse direction of the vehicle.
  • the outer and inner longitudinal profiles are connected to each other, at least indirectly or directly, via the second crossmember.
  • the outer and inner longitudinal profiles are supported against each other in the transverse direction of the vehicle via the second crossmember, at least indirectly or directly.
  • the second crossmember is arranged in the longitudinal direction of the vehicle in front of a seat mounting device for attaching a seat assembly for a front row of seats. In other words, the second crossmember extends further forward in the longitudinal direction of the vehicle than the seat mounting device.
  • the seat assembly can be attached to the vehicle body structure, at least indirectly, and in particular directly, via the seat mounting device. Specifically, the seat assembly can be arranged or is arranged within the interior.
  • the seat assembly can be referred to as a vehicle seat.
  • the seat assembly is designed or intended for seating at least one person.
  • the fact that the seat assembly is intended for the front row of seats can be understood to mean, in particular, that the The front row of seats is at least partially formed by the seating assembly.
  • the seating assembly can therefore be referred to as the front seating assembly or the front seats.
  • the motor vehicle has a rear row of seats located in the interior and positioned longitudinally behind the front row of seats.
  • the rear row of seats has at least one rear seat assembly designed for at least one person, which can also be referred to as the rear vehicle seat.
  • the rear seating assembly or the rear row of seats is located in a rear section of the interior.
  • the rear section can also simply be referred to as the rear.
  • the rear section can be understood to be, in particular, a rear section of the interior in the longitudinal direction of the vehicle.
  • a front section of the interior is located longitudinally in front of the rear section. This front section can also be referred to as the front section.
  • the seating assembly or the front row of seats is located in the front section.
  • the second crossmember is arranged in the longitudinal direction of the vehicle in front of the seat mounting device can be understood, in particular, to mean that the second crossmember is free of the seat mounting device, and especially free of any seat mounting devices for securing the seating system for the front row of seats. This means that the second crossmember does not serve, in particular, to secure the seating system or the front row of seats.
  • the framework conditions of an architecture, especially body architecture, for battery electric vehicles (BEVs) can be particularly complex and therefore usually do not permit the adoption of concepts from predecessor series.
  • BEVs battery electric vehicles
  • primary crash load paths in a frontal crash engine mounts
  • a crash load acting on the engine mount can be supported on or against a tunnel via a high-strength crossmember, which is arranged in the longitudinal direction of the vehicle behind the engine mounts.
  • the robust, moment-resistant connection of the electrical energy storage system to the body can result in a particularly complex housing for the electrical energy storage system, which should preferably be avoided in the interest of cost efficiency. This can significantly increase the manufacturing costs of the vehicle.
  • a support structure can be designed using the body structure according to the invention, which in particular comprises at least the first cross member, the outer longitudinal profile, and the inner longitudinal profile.
  • the body structure can incorporate the support structure.
  • Crash loads acting on the longitudinal member can be supported on the cross member via the outer and inner longitudinal profiles by means of the support structure.
  • the crash loads can be distributed between the outer and inner longitudinal profiles.
  • the crash loads can be supported on the second cross member in the longitudinal direction of the vehicle via an outer area, particularly in relation to the transverse direction.
  • the crash loads can be supported on the second cross member via the inner longitudinal profile via the vehicle center, particularly in relation to the vehicle center.
  • the crash loads can, for example, be introduced into a footwell by means of the support structure and supported on the second cross member via the vehicle center and the outer area in the longitudinal direction of the vehicle.
  • the outer and inner longitudinal profiles, and in particular the previously described distribution of crash loads, allow for a redistribution of the crash load to the center of the vehicle and the outer area, also known as the exterior.
  • This provides vehicle occupants with optimal freedom of movement in the footwell while simultaneously ensuring efficient and particularly good fulfillment of crash requirements.
  • Optimal freedom of movement is achieved primarily by creating ample space for the occupants in the footwell, as it can be kept largely free of body components. This significantly enhances the vehicle's comfort.
  • Comfort in this context, refers specifically to the comfort of the occupants. The vehicle occupants must understand. Overall, it is evident that the body structure according to the invention allows for the creation of a space-optimized support structure in the passenger footwell for load absorption in a frontal crash.
  • the crash load is, for example, a crash load along a primary load path, particularly the vehicle body.
  • the crash load results from a frontal collision, which can also be referred to as a frontal crash.
  • the crash load is therefore primarily an accident-related crash load.
  • vehicle occupant can refer specifically to a passenger.
  • the vehicle occupant is a passenger seated in the seating system or the front row of seats.
  • the second crossmember is positioned longitudinally behind the footwell of the passenger compartment.
  • the second crossmember extends, at least partially, and in particular predominantly or completely, further rearward than the footwell. This allows crash loads to be supported particularly far forward on the second crossmember without compromising the footwell.
  • the footwell can be made particularly large, as the position of the second crossmember allows it to extend significantly further rearward. This greatly enhances passenger comfort.
  • the footwell can be understood as a space, or sub-area, of the passenger compartment specifically designed for the feet of the occupants, particularly those seated. Thus, the occupants rest their feet in the footwell while seated.
  • the footwell extends longitudinally between the bulkhead and the seat or the front row of seats.
  • the footwell can also be referred to as the passenger footwell.
  • the second crossmember in the vehicle's vertical direction is positioned lower than the footwell.
  • the body structure is designed to be free of a central tunnel.
  • This can be achieved through the outer and inner longitudinal profiles and the described load distribution or redistribution.
  • the crash loads can be supported on the second crossmember via the outer and inner longitudinal profiles, without the A central tunnel is required.
  • This allows for a particularly comfortable interior, especially in the footwell area, for the vehicle occupants.
  • the weight of the body structure can be kept especially low.
  • the first crossmember is arranged in the area of the bulkhead. This means that the first crossmember is located at least in close proximity to, for example, directly adjacent to, the bulkhead. In other words, the first crossmember connects to the bulkhead, at least indirectly, and in particular directly, for example, to the rear in the longitudinal direction of the vehicle and/or downwards in the vertical direction. Put another way, the first crossmember is part of the aforementioned bulkhead structure. This allows the crash load to be distributed across the outer and inner longitudinal profiles via the first crossmember in the bulkhead area. This distribution of the crash load can thus occur in a particularly stable area of the body structure, thereby significantly increasing the mechanical strength of the body structure.
  • the longitudinal beam is supported rearward in the longitudinal direction of the vehicle via a support element that is separate from the longitudinal beam and the first cross member, and in particular directly.
  • the longitudinal beam is connected to the first cross member via the support element, and in particular directly. This allows the crash load to be transferred from the longitudinal beam to the first cross member in a particularly efficient manner.
  • a third crossmember designed separately from the first and especially from the second crossmember, is arranged in the vehicle's vertical direction, particularly directly above the first crossmember.
  • the third crossmember extends further upwards in the vehicle's vertical direction than the first crossmember. This significantly increases the mechanical strength of the body structure.
  • the first crossmember is at least partially, and in particular predominantly or completely, covered by the third crossmember in the vehicle's vertical direction.
  • the third crossmember is preferably part of the bulkhead structure.
  • the bulkhead structure can incorporate the third crossmember.
  • the third crossmember is arranged in the bulkhead area, especially, for example, directly on the bulkhead. Therefore, the third crossmember can be a bulkhead crossmember, particularly a second one.
  • the outer longitudinal profile is arranged in the area of an A-pillar of the body structure or the body itself. This means that the outer longitudinal profile is located at least in close proximity to, for example, directly adjacent to, the A-pillar. Load transfer from the first crossmember to or into the outer longitudinal profile can thus occur in a particularly stable area of the body structure, stiffened by the A-pillar. This significantly increases the mechanical load-bearing capacity of the body structure.
  • the outer longitudinal profile in the vehicle's vertical direction is covered from above, at least partially, and in particular predominantly or completely, by an A-pillar trim panel.
  • the outer longitudinal profile is at least partially covered by the A-pillar trim panel, at least in the vehicle's vertical direction.
  • the outer longitudinal profile is positioned below the A-pillar trim panel, creating significantly more space for the vehicle occupants, especially in the footwell. This can considerably enhance the comfort of the vehicle.
  • A-pillar trim panel can be understood to mean, in particular, at least a portion of an A-pillar cladding, that is, a cladding designed for the A-pillar.
  • the inner longitudinal profile in the vehicle's vertical direction is covered from above, at least partially, and in particular predominantly or completely, by a center console trim panel.
  • the inner longitudinal profile is at least partially covered from above by the center console trim panel.
  • This allows the inner longitudinal profile in the vehicle's vertical direction to be located beneath the center console trim panel, thereby creating significantly more space for the vehicle occupants. This can greatly enhance the comfort of the vehicle.
  • the term "center console trim panel” can be understood to mean, in particular, at least a portion of a center console cover, that is, a cover designed for the center console.
  • the inner longitudinal profile is designed as a hat profile, open downwards, particularly in the vertical direction of the vehicle.
  • the longitudinal profile conforms to a hat profile. is shaped.
  • the longitudinal profile has at least one cross-section that is designed as a hat profile, meaning it is shaped according to the hat profile.
  • the hat profile preferably has a base wall from which two spaced-apart side walls project, in particular obliquely or perpendicularly.
  • the side walls project from the base wall, in particular in a first direction.
  • one side wall is arranged at one end against the base wall, and the other side wall is arranged at the base wall.
  • the base wall and the side walls define or form a cavity, which is open, in particular in the first direction.
  • a wall section projects outwards, in particular obliquely or perpendicularly, with respect to the cavity.
  • the wall section extends, in particular, obliquely or perpendicularly to the first direction, i.e., in a second direction that runs obliquely or perpendicularly to the first direction.
  • this fastening device includes at least one seat mounting element, which is arranged on a seat crossmember positioned behind the second crossmember in the longitudinal direction of the vehicle.
  • the seat crossmember extends further rearward in the longitudinal direction of the vehicle than the second crossmember.
  • the seat mounting element is designed to secure the seat assembly or the first row of seats. This enables the secure fastening of the seat assembly or the front row of seats while simultaneously increasing the mechanical load-bearing capacity of the vehicle body.
  • the seat mounting device includes at least one second seat mounting element, which is designed in particular for securing the seat assembly or the front row of seats.
  • the second seat mounting element is arranged on a second seat cross member, which is designed separately from the seat cross member and extends longitudinally in the vehicle. is located behind the seat crossmember, and thus also in the longitudinal direction of the vehicle behind the second crossmember.
  • Fig. 1 shows a schematic perspective view of a device according to the invention.
  • Fig. 2 shows a schematic perspective view of another body structure.
  • Fig. 1 shows a schematic perspective view of a body structure 1, at least partially.
  • the body structure 1 is intended for the body of an electrically powered motor vehicle.
  • the body structure 1 forms at least part, and in particular predominantly or completely, the front section of the body.
  • the front section can also be referred to as the front end.
  • the body structure 1 has a front wall 2 which at least partially delimits an interior space 3 in the longitudinal direction 4 of the vehicle towards the front.
  • the front wall 2 is, in this case, part of a front wall structure which includes the front wall 2.
  • the body structure 1 further comprises a longitudinal member 5, which projects forward in the longitudinal direction 4 of the vehicle, in particular at least indirectly or directly, from the front wall 2 or the front wall structure.
  • the body structure 1 comprises a second longitudinal member 6, formed separately from the longitudinal member 5, which projects in the transverse direction of the vehicle.
  • the longitudinal beam 5 is spaced apart from the longitudinal beam 5.
  • the longitudinal beam 5 can be referred to as the first longitudinal beam 5.
  • the second longitudinal beam 6 projects forward in the longitudinal direction 4 of the vehicle, in particular at least indirectly or directly, from the front wall 2.
  • the longitudinal beams 5, 6 extend obliquely or perpendicularly to the front wall 2.
  • the longitudinal beams 5, 6 are, for example, designed as engine longitudinal beams.
  • first longitudinal member 5 is arranged in the transverse direction 7 of the vehicle on a first side 8 of the body structure 1
  • second longitudinal member 6 is arranged in the transverse direction 7 of the vehicle on a second side 9 of the body structure 1, which differs from the first side 8.
  • first longitudinal member 5 is, for example, designed as the left longitudinal member
  • second longitudinal member 6 is, for example, designed as the right longitudinal member.
  • the respective longitudinal members 5, 6 are connected, for example, at least indirectly or directly, to the bulkhead structure.
  • the body structure 1 has two side elements 10, 11 spaced apart from each other in the transverse direction 7 of the vehicle, which are arranged at least partially, and in particular predominantly or completely, further forward in the longitudinal direction 4 than the front wall 2 or the front wall structure.
  • a first of the side elements 10 is arranged on the first side 8 and the second of the side elements 11 is arranged on the second side 9.
  • the respective side element 10, 11 is arranged further outwards in the transverse direction 7 of the vehicle than the respective longitudinal member 5, 6.
  • the respective side element 10, 11 forms a respective wheel arch, which is provided, in particular, for receiving a respective front wheel, at least partially.
  • the body structure 1 has two A-pillars 12, 13.
  • the first A-pillar 12 is located on the first side 8, and the second A-pillar 13 is located on the second side 9.
  • Each A-pillar 12, 13 has a column section 14, 15.
  • the column section 14 of the first A-pillar 12 can be referred to as the first column section 14.
  • the column section 15 of the second A-pillar 13 can be referred to as the second column section 15.
  • the first column section 14 is connected to the bulkhead, in particular the bulkhead 2, in a first connection area.
  • the second column section 15 is connected to the bulkhead structure, in particular the bulkhead 2, in a second connection area.
  • the respective connection area can be understood as a respective connection area in which the respective A-pillar 12, 13 meets the bulkhead structure.
  • the respective column section 14, 15 connects to the respective side element 10, 11 in the longitudinal direction 4 of the vehicle.
  • the body structure 1, 2 has outer longitudinal members 16, 17 spaced apart from each other in the transverse direction 7 of the vehicle.
  • the outer longitudinal members 16, 17 can also be referred to as side longitudinal members.
  • a first outer longitudinal member 16 is arranged on the first side 8.
  • the second outer longitudinal member 17 is arranged on the second side 9.
  • the first outer longitudinal member 16 extends rearward from the first connection point in the longitudinal direction 4 of the vehicle.
  • the second outer longitudinal member 17 extends rearward from the second connection point in the longitudinal direction 4 of the vehicle.
  • the respective column section 14, 15 is connected, in particular directly, to the respective outer longitudinal member 16, 17.
  • the respective outer longitudinal member 16, 17 is designed as the respective side sill.
  • the respective outer longitudinal member 16, 17 is designed separately from the respective column section 14, 15 and separately from the front wall structure.
  • the longitudinal members 5, 6 are designed separately from the side longitudinal members 16, 17.
  • the body structure 1 has a first crossmember 18, which in this embodiment is arranged in the area of the front wall 2 and is therefore, in particular, part of the front wall structure.
  • the first crossmember 18 is arranged in the longitudinal direction 4 of the vehicle, for example, in or in front of a footwell 19 of the interior 3.
  • the first crossmember 18 extends, for example, in the transverse direction 7 of the vehicle, at least predominantly over the total width of the body structure 1.
  • the respective longitudinal member 5, 6 can be supported or is supported to the rear.
  • the body structure 1 has an outer longitudinal profile 20, wherein in the exemplary embodiment the body structure 1 has two outer longitudinal profiles 20, 21, which are spaced apart from each other in the transverse direction 7 of the vehicle.
  • a first outer longitudinal profile 20 is arranged on the first side 8 and the second outer longitudinal profile 21 is arranged on the second side 9. Due to the perspective view, the second outer longitudinal profile 21 is not visible in Fig. 1; however, its location or position is illustrated by reference numeral 21 with an arrow.
  • the respective outer longitudinal profile 20, 21 is positioned to the rear of the first outer longitudinal profile 20 in the longitudinal direction 4 of the vehicle.
  • the respective outer longitudinal profile 20, 21 is connected, in particular directly, to the first crossbeam 18, i.e., attached to the first crossbeam 18.
  • the respective outer longitudinal profile 20, 21 is formed separately from the first crossbeam 18, the longitudinal beams 5, 6, the column sections 14, 15 and/or the side longitudinal beams 16, 17.
  • the respective outer longitudinal profile 20, 21 is arranged further outwards in the transverse direction 7 of the vehicle than the respective longitudinal beam 5, 6.
  • the body structure 1 has an inner longitudinal profile 22, wherein in the exemplary embodiment the body structure 1 has two inner longitudinal profiles 22, 23, which are spaced apart from each other, in particular in the transverse direction 7 of the vehicle.
  • the inner longitudinal profiles 22, 23 are formed separately from each other.
  • a first inner longitudinal profile 22 is arranged on the first side 8 and the second inner longitudinal profile 23 is arranged on the second side 9.
  • the respective inner longitudinal profile 22, 23 projects rearward in the longitudinal direction 4 of the vehicle from the first cross member 18, in particular directly.
  • the respective inner longitudinal profile 22, 23 is connected to the first cross member 18, in particular directly, i.e., attached to the first cross member 18.
  • the respective inner longitudinal profile 22, 23 is arranged further inward in the transverse direction 7 of the vehicle than the respective longitudinal member 5, 6.
  • the respective inner longitudinal profile 22, 23 is formed separately from the respective longitudinal member 5, 6, the first cross member 18, the respective column section 14, 15, the respective outer longitudinal member 16, 17 and/or the respective outer longitudinal profile 20, 21. As shown in Fig.
  • the body structure has a second crossmember 24 located behind the first crossmember 18 in the longitudinal direction 4 of the vehicle, and in particular spaced apart from the first crossmember 18 in the longitudinal direction 4 of the vehicle.
  • the respective outer longitudinal profiles 20, 21 and the respective inner longitudinal profiles 22, 23 are connected to each other via this second crossmember 24.
  • This allows the respective longitudinal profile 5, 6 to be supported rearward in the longitudinal direction 4 of the vehicle at least by means of the first crossmember 18 and the respective outer longitudinal profiles 20, 21 and the respective inner longitudinal profiles 22, 23 on the second crossmember 24.
  • a crash load for example in an accident, particularly a frontal collision, introduced into the respective longitudinal members 5, 6, which acts on the respective longitudinal members 5, 6, to be transferred at least via the first cross member 18 and the respective outer longitudinal profiles 20, 21 and the respective inner longitudinal profiles 22, 23 to the second cross member 24.
  • This crash load can then be transferred via the first
  • the crash load can be distributed between the crossbeam 18 and the respective outer longitudinal profiles 20, 21 and the respective inner longitudinal profiles 22, 23, whereby the respective distributed portion of the crash load can then be introduced into the second crossbeam 24. This is illustrated by arrows 25 in Fig. 1. As shown in Fig.
  • the crash load introduced into the first crossbeam 18 via the respective longitudinal beams 5, 6 and acting upon the first crossbeam 18 can be deflected outwards in the transverse direction 7 of the vehicle and directed to the respective outer longitudinal profiles 20, 21, and inwards in the longitudinal direction 4 of the vehicle and directed to the respective inner longitudinal profiles 22, 23.
  • the crash load can be at least partially supported by the second crossbeam 24, which can significantly increase the mechanical strength of the body structure 1. Due to its particularly high mechanical strength, the safety, especially passive safety, of the vehicle and/or the body structure 1 can be significantly increased.
  • the footwell 19 can be designed to be particularly large, especially wide in the transverse direction 7 of the vehicle. This can significantly increase the comfort of the vehicle.
  • a particularly advantageous support structure can thus be created, comprising at least the longitudinal members 5, 6, the first cross member 18, and the longitudinal profiles 20 to 23.
  • the crash load can be understood as a load resulting from the accident, particularly a mechanical load, which includes, for example, at least one force and/or at least one torque.
  • a high-strength or extremely-strength transverse structure in the front of the vehicle can be enabled to support lower front crash load paths relative to the vehicle's vertical direction 26.
  • a gap extends in the longitudinal direction 4 of the vehicle between the first cross member 18 and the second cross member 24, and in the transverse direction 7 of the vehicle between the respective outer longitudinal profiles 20, 21 and the respective inner longitudinal profiles 22, 23.
  • the crash load can be directed around this gap, as illustrated by arrows 25 in Fig. 1.
  • the respective outer longitudinal profile 20, 21 is arranged in the area of the respective A-pillar 12, 13.
  • the first outer longitudinal profile 20 is arranged, in particular directly, on the first pillar section 14, and the second outer longitudinal profile 21 is arranged, for example, in particular directly, on the second Column section 15 is arranged.
  • loads acting in the first cross member 18, for example in the form of the aforementioned crash load can be directed or supported via a respective longitudinal profile in the form of the respective outer longitudinal profile 20, 21 in the lower area of the respective A-pillar 12, 13 in the vehicle's vertical direction and a respective longitudinal profile in the form of the respective inner longitudinal profile 22, 23 in a vehicle center relative to the vehicle's transverse direction 7 onto or towards the second cross member 24, which is arranged, in particular, in the vehicle's longitudinal direction 4 behind the footwell 19.
  • the respective outer longitudinal profile 20, 21 is designed separately from the column sections 14, 15 and/or the outer longitudinal members 16, 17.
  • the second crossbeam 24 is, for example, designed to be high-strength or extremely strong.
  • the second crossbeam 24 is, for example, hot-formed and/or has, for example, a high material quality.
  • the second crossmember 24 is arranged in the longitudinal direction 4 of the vehicle behind the footwell 19.
  • the body structure in particular the body itself, is free of a central tunnel.
  • a floor element (not shown in Fig. 1) is arranged on the crossmembers 18, 24, for example, in the vertical direction 26 below the crossmembers 18, 24, which is designed, for example, as the main floor.
  • the floor element limits the interior 3 downwards in the vertical direction of the vehicle, at least partially, in particular predominantly or completely.
  • the support structure can be understood as a support structure located in the interior 3.
  • At least one cover element for example a trim part, in particular a floor distribution part, is arranged between the second cross member 24 and the footwell 19 in the vehicle's vertical direction 26, whereby the second cross member 24 can be arranged below the footwell 19 in the vehicle's vertical direction 26, but can still be arranged behind the footwell 19 in the vehicle's longitudinal direction 4.
  • each longitudinal member 5, 6 is supported rearward in the longitudinal direction 4 of the vehicle by a separate support element 27, 28, for example directly, on the first cross member 18.
  • the support elements 28 are supported, in particular directly, in the longitudinal direction 4 of the vehicle towards the rear on the first cross member 18.
  • a connection can be created via the support element 27, 28 from a respective longitudinal member 5, 6 to the first cross member 18. Therefore, the respective support element 27, 28 can be referred to as a respective connecting profile.
  • the respective support element 27, 28 is positioned, for example, aligned with the respective longitudinal member 5, 6 or with a respective main longitudinal load path, in particular the crash load. Loads, for example in the form of the aforementioned crash load, can be directed or redirected via the respective support element 27, 28 into the footwell to the first cross member 18, which extends, for example, at least substantially across the entire width of the vehicle.
  • a respective first connection point at which the respective outer longitudinal profile 20, 21 is connected to the first cross member 18, in particular directly, is arranged further outwards in the transverse direction 7 of the vehicle than the respective longitudinal member 5, 6, in particular the respective support element 27, 28.
  • a respective second connection point at which the respective inner longitudinal profile 22, 23 is connected to the first cross member 18, in particular directly, is arranged further inwards in the transverse direction 7 of the vehicle than the respective longitudinal member 5, 6, in particular than the respective support elements 27, 28.
  • the third crossbeam 29 is arranged, in particular directly, on the front wall 2.
  • the third crossbeam 29 is, for example, a main crash crossbeam.
  • the respective support element 27, 28 is arranged in the vehicle's vertical direction 26 below the third crossbeam 29.
  • the respective support element 27, 28 extends under the third crossbeam 29 in the vehicle's vertical direction 26. This allows the aforementioned crash load to be transferred via the respective support element 27, 28.
  • the third crossbeam 29 may be routed under the third crossbeam 29, at least partially, and in particular predominantly or completely, bypassing it.
  • the third crossbeam 29 is connected, in particular directly, to the side elements 10, 11, the column sections 14, 15, and the lateral longitudinal beams 16, 17.
  • the third crossbeam 29 spans the side elements 10, 11, the column sections 14, 15, and/or the lateral longitudinal beams 16, 17 in the transverse direction 7 of the vehicle.
  • the respective outer longitudinal profile 20, 21 is covered at least partially from above in the vehicle's vertical direction 26 by an A-pillar trim panel not shown in Fig. 1.
  • the respective inner longitudinal profile 22, 23 is covered at least partially from above in the vehicle's vertical direction 26 by a center console trim panel not shown in the figures.
  • longitudinal structures in the form of the longitudinal profiles 20 to 23, particularly in the vehicle's vertical direction 26, are located below trim panels of the center console and the A-pillars 12, 13, thus ensuring that the vehicle occupant (also referred to as the customer) is not restricted in their movement.
  • the respective inner longitudinal profile 22, 23 is designed as a hat profile, open downwards, particularly in the vehicle's vertical direction 26.
  • a longitudinal support in the form of the inner longitudinal profiles 22, 23, especially in the center of the vehicle can be implemented using two separately designed hat profiles in order to optimize material utilization in manufacturing.
  • the body structure 1 has a seat mounting device 30 for attaching a seat assembly for a front row of seats.
  • the body structure 1 has a second seat mounting device 31, which is distinct from the seat mounting device 30, for attaching a second seat assembly for the front row of seats, which is distinct from the seat assembly 30.
  • each seat assembly is a front seat.
  • the second cross member 24 is located in the longitudinal direction 4 of the vehicle in front of the seat mounting device 30, which can be referred to as the first seat mounting device 30, and in particular in the longitudinal direction 4 in front of the second seat mounting device 31.
  • the second cross member 24 is spaced apart in the longitudinal direction 4 from the seat mounting devices 30 and 31.
  • the second cross member 24 can thus be positioned far enough forward in the longitudinal direction 4 of the vehicle to particularly increase the mechanical load-bearing capacity of the body structure 1, but still far enough, especially in the longitudinal direction of the vehicle. They are positioned at the rear to increase comfort, especially through the particularly large footwell 19.
  • the seat mounting device 30 has two seat mounting parts 32, which can be referred to as front seat mounting parts 32.
  • the seat mounting parts 32 are arranged, in particular directly, on a seat cross member 33, which is located in the longitudinal direction 4 of the vehicle behind the second cross member 24, and is spaced apart from the second cross member 24 in the longitudinal direction 4 of the vehicle.
  • the seat mounting parts 32 are spaced apart from each other in the transverse direction 7 of the vehicle.
  • the first seat mounting device 30 has two rear seat mounting parts 34 arranged in the longitudinal direction 4 of the vehicle behind the front seat mounting parts 32, which, in the exemplary embodiment, are arranged, in particular directly, on a second seat cross member 35 located in the longitudinal direction 4 of the vehicle behind the seat cross member 33.
  • the second seat cross member 35 is spaced apart from the seat cross member 33 in the longitudinal direction 4 of the vehicle.
  • the seat cross member 33 can also be referred to as the first seat cross member 33.
  • the seat assembly can be attached to or fastened to the body structure 1 via the seat mounting parts 32, 34.
  • the second seat mounting device 31 has two front seat mounting parts 36, which are spaced apart from each other, particularly in the transverse direction 7 of the vehicle, and which are arranged, particularly directly, on the first seat cross member 33, and in particular attached to it. Furthermore, the second seat mounting device 31 has two rear seat mounting parts 37, which are spaced apart from each other, for example, in the transverse direction 7 of the vehicle, and which are arranged, particularly directly, on the second seat cross member 35, and in particular attached to it.
  • the second seat assembly can be attached to the body structure 1 via the seat mounting parts 36, 37.
  • the respective seat cross members 33, 35 are designed separately from the second cross member 24.
  • Fig. 2 shows a schematic perspective view of another body structure 1a.
  • the other body structure 1a does not have the support structure described above. Instead, in the other body structure 1a, the crash load introduced via the respective longitudinal members 5a, 6a of the other body structure 1a is distributed to a lower longitudinal structure 38 and a central tunnel 39, with the lower longitudinal structure 38 running, for example, in the vertical direction of the vehicle under a passenger cell of the other body structure 1a. This is indicated in Fig. 2 by arrows 25a. Illustrated.
  • the support structure of the body structure 1 allows the interior space 3, especially in the footwell 19, to be made particularly large and therefore particularly comfortable for the vehicle occupant.
  • Vehicle longitudinal direction first longitudinal member a first longitudinal member of the further body structure second longitudinal member a second longitudinal member of the further body structure
  • Vehicle transverse direction first side second side 0 first side element 1 second side element 2 first A-pillar 3 second A-pillar 4 first pillar section 5 second pillar section 6 first outer longitudinal member 7 second outer longitudinal member 8 first cross member 9 footwell 0 first outer longitudinal profile 1 second outer longitudinal profile 2 first inner longitudinal profile 3 second inner longitudinal profile 4 second cross member 5 arrow 5a arrow 6

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  • 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)

Abstract

L'invention concerne une structure de corps (1) pour un corps de véhicule automobile à entraînement électrique, comprenant une cloison (2), comprenant un support longitudinal (5) qui fait saillie vers l'avant à partir de la cloison (2) dans la direction longitudinale du véhicule (4), comprenant un premier support transversal (18) sur lequel le support longitudinal (5) est supporté à l'arrière dans la direction longitudinale du véhicule (4), comprenant un profil longitudinal extérieur (20) qui est relié au premier support transversal (18) et qui fait saillie vers l'arrière (7) à partir du premier support transversal (18) dans la direction longitudinale du véhicule (4) et qui est disposé davantage vers l'extérieur que le support longitudinal (5) dans la direction transversale du véhicule (7), comprenant un profil longitudinal interne (22) qui est relié au premier support transversal (18) et qui fait saillie vers l'arrière à partir du premier support transversal (18) dans la direction longitudinale du véhicule (4) et qui est disposé plus vers l'intérieur que le support longitudinal (5) dans la direction transversale du véhicule (7), et comprenant un second support transversal (24) disposé derrière le premier support transversal (18) dans la direction longitudinale du véhicule (4), par l'intermédiaire duquel le profil longitudinal externe (20) et le profil longitudinal interne (22) sont reliés l'un à l'autre.
PCT/DE2025/100629 2024-08-13 2025-07-02 Structure de corps de véhicule automobile Pending WO2026037449A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102024123137.8A DE102024123137A1 (de) 2024-08-13 2024-08-13 Karosseriestruktur für eine Kraftwagenkarosserie
DE102024123137.8 2024-08-13

Publications (1)

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WO2026037449A1 true WO2026037449A1 (fr) 2026-02-19

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DE (1) DE102024123137A1 (fr)
WO (1) WO2026037449A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110133518A1 (en) * 2009-12-03 2011-06-09 GM Global Technology Operations LLC Chassis structure of a motor vehicle body
ES2538377T3 (es) * 2010-11-09 2015-06-19 Volkswagen Aktiengesellschaft Disposición de travesaño, especialmente disposición de travesaño de suelo y/o de travesaño de espacio para los pies, en una carrocería de vehículo, especialmente en una carrocería de vehículo automóvil
DE102006004045B4 (de) * 2006-01-28 2021-09-16 Volkswagen Ag Cabriolet-Fahrzeugkarosserie mit einer Tragstruktur
DE102020129748A1 (de) 2020-11-11 2022-05-12 Bayerische Motoren Werke Aktiengesellschaft Energiespeicher–Bodengruppe für einen elektrisch antreibbaren Personenkraftwagen
WO2022119176A1 (fr) * 2020-12-02 2022-06-09 주식회사 포스코 Carrosserie de véhicule électrique
EP4098524A1 (fr) * 2021-06-01 2022-12-07 Mazda Motor Corporation Structure de carrosserie d'un véhicule automobile électrique
EP4234374A1 (fr) * 2022-02-24 2023-08-30 Mazda Motor Corporation Structure avant de carrosserie de véhicule
EP4289710A1 (fr) * 2022-06-06 2023-12-13 Nio Technology (Anhui) Co., Ltd Véhicule et élément de section arrière de longeron avant associé

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006527A1 (de) * 2012-03-29 2013-10-02 GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) Bodenstruktur einer Kraftfahrzeugkarosserie
KR101575456B1 (ko) * 2014-03-04 2015-12-08 현대자동차주식회사 차량의 언더플로어 프레임 시스템
DE102018132258A1 (de) * 2018-12-14 2020-06-18 Bayerische Motoren Werke Aktiengesellschaft Energiespeicher-Bodengruppe für einen Kraftwagenrohbau
JP7581778B2 (ja) * 2020-11-04 2024-11-13 スズキ株式会社 車両下部構造

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004045B4 (de) * 2006-01-28 2021-09-16 Volkswagen Ag Cabriolet-Fahrzeugkarosserie mit einer Tragstruktur
US20110133518A1 (en) * 2009-12-03 2011-06-09 GM Global Technology Operations LLC Chassis structure of a motor vehicle body
ES2538377T3 (es) * 2010-11-09 2015-06-19 Volkswagen Aktiengesellschaft Disposición de travesaño, especialmente disposición de travesaño de suelo y/o de travesaño de espacio para los pies, en una carrocería de vehículo, especialmente en una carrocería de vehículo automóvil
DE102020129748A1 (de) 2020-11-11 2022-05-12 Bayerische Motoren Werke Aktiengesellschaft Energiespeicher–Bodengruppe für einen elektrisch antreibbaren Personenkraftwagen
WO2022119176A1 (fr) * 2020-12-02 2022-06-09 주식회사 포스코 Carrosserie de véhicule électrique
EP4098524A1 (fr) * 2021-06-01 2022-12-07 Mazda Motor Corporation Structure de carrosserie d'un véhicule automobile électrique
EP4234374A1 (fr) * 2022-02-24 2023-08-30 Mazda Motor Corporation Structure avant de carrosserie de véhicule
EP4289710A1 (fr) * 2022-06-06 2023-12-13 Nio Technology (Anhui) Co., Ltd Véhicule et élément de section arrière de longeron avant associé

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