WO2024227482A1 - Karosseriestruktur für ein kraftfahrzeug - Google Patents
Karosseriestruktur für ein kraftfahrzeug Download PDFInfo
- Publication number
- WO2024227482A1 WO2024227482A1 PCT/DE2024/100355 DE2024100355W WO2024227482A1 WO 2024227482 A1 WO2024227482 A1 WO 2024227482A1 DE 2024100355 W DE2024100355 W DE 2024100355W WO 2024227482 A1 WO2024227482 A1 WO 2024227482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connection
- base
- connection region
- outer panel
- pillar
- 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
- 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
-
- 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
- B62D25/06—Fixed roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/005—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material preformed metal and synthetic material elements being joined together, e.g. by adhesives
-
- 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
Definitions
- the present invention relates to a body structure for a motor vehicle having the features of the preamble of patent claim 1.
- body structures for motor vehicles are known that have a body base made of metal.
- a body base is the basic structure or base of a vehicle. Depending on the design, a body base can also be understood as a self-supporting body.
- the body base is usually made of steel or aluminum and represents the supporting structure of the vehicle. It is designed in such a way that it meets the requirements for load-bearing capacity in crash scenarios and thus offers the occupants protection in the event of an accident.
- the body base also serves as a basis for the assembly of body parts such as doors, bonnet and fenders.
- the present invention is therefore based on the object of reducing the weight of a body structure while at the same time meeting requirements for load capacity in crash scenarios.
- the invention relates to a body structure for a motor vehicle, comprising a body base body formed from a metal, characterized in that the body structure further comprises an outer panel formed from a plastic, wherein the body base body has at least one first base body connection region and at least one second base body connection region, and the outer panel has at least one first connection region and at least one second connection region; and wherein the first main body connection region is connected to the first connection region and the second main body connection region is connected to the second connection region such that a hollow chamber profile is formed by the body main body and the outer panel.
- the outer panel is made of plastic, the weight of the body structure is reduced.
- the stressed connection of the body base with the outer panel creates a closed profile composite in the form of a hollow chamber profile.
- the outer panel thus contributes to the structural rigidity. In this way, less material has to be used for the body base, for example to meet structural rigidity requirements, which further reduces the weight of the body structure.
- shaping the exterior of the vehicle is simplified because shapes of the outer panel can be realized more quickly and easily in a plastic material.
- thermoplastic compared to a metal such as steel or aluminum
- advantages in terms of shaping as such a plastic can be shaped more easily, which can be of particular importance for the outer skin parts.
- the outer panel is preferably designed as an outer side frame and/or as an outer roof.
- the hollow chamber profile can be formed particularly well in these areas of the vehicle. It is also conceivable that the hollow chamber profile can accommodate other elements such as an antenna.
- the outer side frame in particular is particularly well suited as such an integration component.
- the first base body connection area, the second base body connection area, the first connection area and/or the second connection area are flat. This achieves a flat type of connection between the body base and the outer panel, which increases their connection strength and the structural rigidity of the body structure.
- the hollow chamber profile extends in a ring-like manner along structures of the body base. The ring-like course increases the area moment of inertia and thus the structural rigidity of the body structure.
- such a structure of the body base is formed by an A-pillar structure, a B-pillar structure, a C-pillar structure, an A-pillar bow structure, a B-pillar bow structure, a C-pillar bow structure, a longitudinal roof bow structure, and/or an outer sill profile structure.
- the hollow chamber profile is formed along such a structure.
- the hollow chamber profile is formed along two or more of these structures. This is particularly conceivable if the hollow chamber profile is formed in a ring-like manner along structures of the body base.
- first base body connection area is connected to the first connection area and the second base body connection area is connected to the second connection area by means of a joining connection, with a clip, screw, rivet, weld or adhesive connection being provided as the joining connection.
- separable joining techniques such as a clip or screw connection are particularly easy and quick to implement and therefore cost-effective.
- the non-separable joining techniques such as a rivet, weld or adhesive connection allow a particularly strong type of connection.
- the first connection area or the second connection area of the outer cladding has a fastening structure, wherein the fastening structure is formed inside the hollow chamber profile.
- the fastening structure is not visible from the outside.
- cladding parts can be omitted, which further saves weight.
- the installation space inside the hollow chamber profile is used, so that installation space outside the hollow chamber profile can be saved.
- the outer panel comprises a plurality of plastic parts.
- the plurality of plastic parts can be connected to one another in a separable or inseparable manner. This makes it possible to adapt the outer panel to the shape of the bodywork in a simple manner.
- the structural rigidity of the outer panel can also be further increased by the plurality of plastic parts.
- a first plastic part, a second plastic part and the body base are shaped in such a way that a double hollow chamber profile is formed. This further increases the structural rigidity of the body structure.
- the first plastic part is designed as a roof structure and the second plastic part is designed as a side frame structure, wherein the side frame structure has the first connection area and the second connection area. This makes it possible to increase the structural rigidity in the upper area of the body structure particularly well.
- the body base is designed to be watertight in such a way that water from the outside is prevented from entering the interior of the motor vehicle.
- the connection between the body base and the outer panel can be designed to be water-permeable.
- a separable joining technique such as a clip or screw connection can be selected for this, which makes the body structure particularly easy and quick to manufacture and thus cost-effective.
- the body base has a plurality of first, separate body connection areas and a plurality of second, separate body connection areas
- the outer panel has a plurality of first, separate connection areas and a plurality of second, separate connection areas, wherein the first body connection areas are connected to the first connection areas and the second body connection areas are connected to the second connection areas in such a way that the hollow chamber profile is formed by the body base and the outer panel.
- the length of the motor vehicle in the X direction is less than or equal to 3 m.
- the motor vehicle is designed as a light electric vehicle. Since light electric vehicles are subject to size and weight specifications, the advantageous effects of the present inventions described are particularly helpful in meeting the size and weight specifications.
- the motor vehicle can be designed as a light electric vehicle of the EC vehicle class L6e or L7e in accordance with EU Regulation No. 168/2013. It is also conceivable that the empty weight of the light electric vehicle without a drive battery can be up to 450 kg. It is also conceivable that the total length of the light electric vehicle in the X direction is limited to 3 m.
- a reduced installation space is also advantageous for all types of vehicles, as it leads to a desirable reduction in traffic area in urban traffic.
- Figure 1 is a schematic sectional view of an embodiment of a body structure according to the invention
- Figure 2 is a schematic perspective view of an embodiment of a body structure according to the invention.
- Figure 3 is a schematic sectional view of an embodiment of a body structure according to the invention from a roof area to an outer sill profile structure, and
- Figure 4 shows the outer sill profile structure from Figure 3 in detail.
- Figure 1 shows a schematic sectional view of an embodiment of a body structure 10 according to the invention, which comprises a body base 20 made of metal and an outer panel 30 made of a plastic.
- the body base 20 comprises at least one first body connection area 22 and at least one second body connection area 24.
- the body base 20 is preferably made of steel or aluminum.
- the outer panel 30 comprises at least one first connection area 32 and at least one second connection area 34.
- the outer panel is preferably formed from a thermoplastic.
- the first base body connection region 22 is connected to the first connection region 32 and the second base body connection region 24 is connected to the second connection region 34 in such a way that a hollow chamber profile 40 is formed by the body base 20 and the outer panel 30.
- the body base 20 and the outer panel 30 lie opposite each other and form a cavity. They are connected to each other via the areas 22, 24, 32 and 34.
- the hollow chamber profile 40 can preferably extend along one or a plurality of structures of the body base 20. In this way, a profile structure in the form of a closed profile composite is formed.
- a profile can be understood as an elongated, hollow component with a specific shape and cross-sectional geometry. In this way, the structural rigidity of the body structure 10 is increased at the same time as the body base 20 and the outer panel 30. Less material can thus be used for the body base 20, for example to meet structural rigidity requirements, thereby further reducing the weight of the body structure 10.
- the regions 22, 24, 32 and/or 34 are formed in a flat manner as shown in the sectional view of Figure 1.
- the regions 22, 24, 32 and/or 34 are formed only in a linear manner, for example in the form of an adhesive or weld seam.
- the regions 22, 24, 32 and 34 can be connected by means of a joint, wherein a clip, screw, rivet, weld or adhesive connection is provided as the joint.
- a structure of the body base 20, along which the hollow chamber profile 40 extends, can preferably be formed by an A-pillar structure 50, a B-pillar structure 52, a C-pillar structure 54, an A-pillar bow structure 60, a B-pillar bow structure 62, a C-pillar bow structure 64, a longitudinal roof bow structure 70, and/or an outer sill profile structure 80, which can be seen in Figure 2.
- Figure 2 shows the body base 20, on which the outer panel 30 is placed in the shape of a hood.
- the areas 22, 24, 32 and 34 are along the A-pillar structure 50, the B-pillar structure 52, the C-pillar structure 54, the A- Pillar bow structure 60, B-pillar bow structure 62, C-pillar bow structure 64, a longitudinal roof bow structure 70 and/or the outer sill profile structure 80.
- the outer panel 30 preferably forms an outer left or right side frame 38.1 and/or an outer roof 38.2.
- the outer panel 30 can particularly preferably be designed in three parts, in this case it comprises the outer roof 38.2, the left outer side frame 38.1 and the right outer side frame 38.1.
- color pigments can also be introduced into the plastic material of the outer panel 30, in particular the roof 38.2, in a particularly simple and permanent manner, which increases the stability of the color design with regard to environmental influences such as sunlight. In addition, it is more cost-effective in this way to provide individual and specific color designs during the manufacture of the motor vehicle.
- the areas 22, 24, 32 and 34 are arranged along a single structure of the bodywork base 20.
- the areas 22 and 32 are arranged along a first structure in one vehicle area and the areas 24 and 34 are arranged along a second structure in another vehicle area:
- the areas 22 and 32 are arranged along the left longitudinal roof bow structure 70.1 and the areas 24 and 34 are arranged along the right longitudinal roof bow structure 70.2.
- a flat roof element of the bodywork base 20 with a flat roof element of the outer panel 30 would form the hollow chamber profile 40 described above.
- the areas 22 and 32 are arranged along the front A-pillar bow structure 60 and the areas 24 and 34 are arranged along the middle B-pillar bow structure 62 and/or the C-pillar bow structure 64.
- a flat roof element of the body base 20 with a flat roof element of the outer panel 30 would also form the hollow chamber profile 40 described above.
- the hollow chamber profile 40 particularly preferably extends in a ring-like manner along structures of the body base 20.
- the hollow chamber profile 40 can run in a ring-like manner along a vehicle door 12, for example along the A-pillar structure 50, the longitudinal roof bow structure 70, the B-pillar structure 52 and the outer sill profile structure 80. It is also conceivable that the hollow chamber profile 40 runs in a ring-like manner along a roof or other areas of the body structure 10. “Ring-like” is not to be understood exclusively as circular, but generally as enclosing with any shape.
- the outer panel 30 comprises a plurality of plastic parts.
- a first plastic part 30.1, a second plastic part 30.2 and the basic body 20 are preferably shaped such that a double hollow chamber profile 40.1 and 40.2 is formed, whereby increased rigidity is achieved with reduced installation space.
- the first plastic part 30.1 is designed as a roof structure and the second plastic part 30.2 is designed as a side frame structure in the area of the longitudinal roof bow structure 70, wherein the side frame structure or the second plastic part 30.2 has the first connection area 32 and the second connection area 34.
- the second plastic part 30.2 is preferably wave-shaped.
- the second plastic part 30.2 preferably has connection areas 30.2.a and 30.2. b, which are each connected to corresponding connection areas 30.1. a and 30.1.b of the first plastic part 30.1.
- connection areas 30.2.a and 30.2. b which are each connected to corresponding connection areas 30.1. a and 30.1.b of the first plastic part 30.1.
- the joining techniques already described can be used.
- an inner side frame 20.1 of the body base 20 is designed to be watertight to seal the interior, as described further below.
- the body base 20 has no holes here.
- a further hollow chamber profile 40 can also be seen in the area of the outer sill profile structure 80, which is shown in detail in Figure 4:
- the second connection area 34 preferably has a fastening structure 36, wherein the fastening structure 36 and the connection area 34 are formed inside the hollow chamber profile 40.
- the fastening structure 36 is preferably also made of a plastic and can, for example, be sprayed onto the outer panel 30 in this area on the inside.
- the fastening structure can preferably comprise a thread for a screw connection (for example C-clip nuts), which is shown as an example in Figure 4.
- the body base 20 is designed to be watertight in such a way that water ingress from the outside into the interior of the motor vehicle is prevented.
- the body base 20 can thus be designed as a structure that is sealed to the inside.
- the body base 20 is designed to be watertight, preferably in the body connection areas 22 and 24, in order to specifically prevent water ingress in the area of the connection with the outer panel 30.
- other areas of the body base 20 outside the connection area of the outer panel 30 can preferably also be designed to be water-permeable, for example with perforated elements, in order to further reduce weight. to save. Consequently, clip or screw connections can be used when connecting the body base 20 to the outer panel 30 as described above.
- Sealing elements 16 can also be provided as an option, which are shown by way of example in Figures 3 and 4.
- the sealing elements 16 can be arranged on the interconnected areas 22 and 32 or 24 and 34.
- the sealing elements 16 can preferably be designed as a door seal or additional acoustic seal.
- water can run off from the side in the direction of the arrow from above.
- the vehicle door 12 can have a known water channel with an edge protection seal in a door joint.
- the body base 20 has a plurality of first, separate body connection areas 22 and a plurality of second, separate body connection areas 24, and the outer panel 30 has a plurality of first, separate connection areas 32 and a plurality of second, separate connection areas 34, wherein the first body connection areas 22 are connected to the first connection areas 32 and the second body connection areas 24 are connected to the second connection areas 34 in each case such that the hollow chamber profile 40 is formed by the body base 20 and the outer panel 30. It is conceivable that at the points where no areas 22, 24, 32 and 34 are formed, the body base 20 and the outer panel 30 either only lie against one another or are spaced apart from one another, whereby a hollow chamber profile 40 is also formed in the sense of the invention.
- the ring-like course of the hollow chamber profile 40 can be formed particularly well along structures 50, 52, 54, 60, 62, 64, 70, and/or 80 of the body base 20. It is conceivable that no areas 22, 24, 32 and 34 are provided in the connecting nodes 14.
- the areas 22, 24, 32 and 34 can be arranged outside the connection nodes 14.
- the regions 20, 24, 32 and 34 extend continuously along structures of the body base 20. They can thus also be arranged within a connecting node 14.
- the regions 20, 24, 32 and 34 can run continuously and in a ring-like manner along a vehicle door 12, for example along the A-pillar structure 50, the longitudinal roof bow structure 70, the B-pillar structure 52 and the outer sill profile structure 80. This also applies to similar structures of the body base 20, for example window structures or roof structures in Figure 2.
- the outer cladding 30 only forms an outer roof structure 38.2.
- the outer cladding 30.1 can comprise the first plastic part 30.1 and the second plastic part 30.2 as shown in Figure 3.
- the outer cladding 30.1 only comprises the first plastic part 30.1, which then has the first connection area 32 and the second connection area 34 or a plurality of the areas 32 and 34.
- the hollow chamber profile 40 is formed only along a single structure 50, 52, 54, 60, 62, 64, 70, and/or 80 or other structures of the body base 20.
- the areas 22, 24, 32 and 34 can be formed only at relevant locations in order to reduce material, weight or assembly effort.
- no hollow chamber profile 40 is formed on certain structures of the body base 20, such as, for example, on a front cowl or on a rear end, in order to facilitate the assembly of the outer panel 30 on the body base 20.
- the embodiments of the body structure 10 described above can be imagined in all types of motor vehicles.
- the motor vehicle 10 is particularly preferably designed as a light electric vehicle.
- the empty weight of the light electric vehicle without energy storage/battery is preferably less than or equal to 450 kg. It is also conceivable that the total length of the light electric vehicle in the X direction is limited to 3 m.
- the outer panel 30 made of plastic is particularly advantageous given the compact size of such a light electric vehicle: This makes it possible to center it using a door flange, for example by means of fastening with screws, which can then be covered by the edge protection seal 16 of the door. Tolerances can preferably be reduced to the front and rear towards the less functionally important separation points.
- a thermoplastic material allows for overdetermination (forced centering) at least in part due to its elasticity.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480008689.4A CN120584070A (zh) | 2023-05-02 | 2024-04-22 | 用于机动车的车身结构 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023111296.1A DE102023111296A1 (de) | 2023-05-02 | 2023-05-02 | Karosseriestruktur für ein kraftfahrzeug |
| DE102023111296.1 | 2023-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024227482A1 true WO2024227482A1 (de) | 2024-11-07 |
Family
ID=90971441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2024/100355 Ceased WO2024227482A1 (de) | 2023-05-02 | 2024-04-22 | Karosseriestruktur für ein kraftfahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN120584070A (de) |
| DE (1) | DE102023111296A1 (de) |
| WO (1) | WO2024227482A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060152043A1 (en) * | 2004-10-28 | 2006-07-13 | Eric Bonneau | Plastics material elongate member forming part of a roof structure, a roof structure member, a roof arch, a roof frame, and a roof module for a motor vehicle |
| DE102015220978B3 (de) * | 2015-10-27 | 2017-02-09 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Dachanordnung |
| DE102015014643A1 (de) * | 2015-11-12 | 2017-05-18 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Kraftfahrzeugkarosserie |
| EP3293095A2 (de) * | 2016-09-07 | 2018-03-14 | Muhr und Bender KG | B-säule für eine kraftfahrzeugkarosserie sowie kraftfahrzeugkarosserie mit einer solchen b-säule |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH687817A5 (de) * | 1994-03-25 | 1997-02-28 | Alusuisse Lonza Services Ag | Kastengerippe |
| FR2804649B1 (fr) * | 2000-02-07 | 2002-05-10 | Ecia Equip Composants Ind Auto | Face avant pour vehicule automobile |
| DE10150061A1 (de) * | 2001-10-10 | 2003-05-15 | Hella Behr Fahrzeugsysteme | Metall/Kunststoff-Hybridträger für ein Fahrzeug-Frontmodul |
| DE102006050144A1 (de) * | 2006-10-25 | 2008-04-30 | Huntsman Advanced Materials (Switzerland) Gmbh | Metall-Kunststoff-Hybrid-Strukturbauteile |
| DE102007026762A1 (de) * | 2007-06-09 | 2009-02-05 | Lanxess Deutschland Gmbh | Verstärkungselement für einen Fahrzeug Hohlkörper |
| DE102011000450A1 (de) * | 2011-02-02 | 2012-08-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Trägerstruktur für ein Fahrzeug sowie Verfahren zur Herstellung einer Trägerstruktur für ein Fahrzeug |
| DE202014005241U1 (de) * | 2014-06-30 | 2014-08-11 | Joma-Polytec Gmbh | Kunststoff-Metall-Hybridteil |
| DE102019118313A1 (de) * | 2019-07-05 | 2021-01-07 | Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg | Fahrzeugverkleidungsteil |
-
2023
- 2023-05-02 DE DE102023111296.1A patent/DE102023111296A1/de active Pending
-
2024
- 2024-04-22 WO PCT/DE2024/100355 patent/WO2024227482A1/de not_active Ceased
- 2024-04-22 CN CN202480008689.4A patent/CN120584070A/zh active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060152043A1 (en) * | 2004-10-28 | 2006-07-13 | Eric Bonneau | Plastics material elongate member forming part of a roof structure, a roof structure member, a roof arch, a roof frame, and a roof module for a motor vehicle |
| DE102015220978B3 (de) * | 2015-10-27 | 2017-02-09 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Dachanordnung |
| DE102015014643A1 (de) * | 2015-11-12 | 2017-05-18 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Kraftfahrzeugkarosserie |
| EP3293095A2 (de) * | 2016-09-07 | 2018-03-14 | Muhr und Bender KG | B-säule für eine kraftfahrzeugkarosserie sowie kraftfahrzeugkarosserie mit einer solchen b-säule |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023111296A1 (de) | 2024-11-07 |
| CN120584070A (zh) | 2025-09-02 |
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