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WO2011128081A1 - Carrosserie de véhicule et procédé de fabrication d'une carrosserie de véhicule - Google Patents

Carrosserie de véhicule et procédé de fabrication d'une carrosserie de véhicule Download PDF

Info

Publication number
WO2011128081A1
WO2011128081A1 PCT/EP2011/001850 EP2011001850W WO2011128081A1 WO 2011128081 A1 WO2011128081 A1 WO 2011128081A1 EP 2011001850 W EP2011001850 W EP 2011001850W WO 2011128081 A1 WO2011128081 A1 WO 2011128081A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle body
body according
bottom part
wall
passenger compartment
Prior art date
Application number
PCT/EP2011/001850
Other languages
German (de)
English (en)
Inventor
Georg KÄSMEIER
Original Assignee
Roding Automobile Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roding Automobile Gmbh filed Critical Roding Automobile Gmbh
Publication of WO2011128081A1 publication Critical patent/WO2011128081A1/fr

Links

Classifications

    • 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
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/046—Combined superstructure and frame, i.e. monocoque constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/02—Connections between superstructure or understructure sub-units rigid
    • B62D27/026—Connections by glue bonding
    • 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
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/041—Understructures
    • 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
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/048—Connections therefor, e.g. joints

Definitions

  • the invention relates to a vehicle body with a self-supporting passenger compartment and to a method for producing such a vehicle body.
  • the passenger compartment is made of plastic.
  • the passenger compartment comprises a single, downwardly open, undercut-free large press, the open bottom of which is closed with several flat covers.
  • This large press is made of glass fiber reinforced polyester resin.
  • DE 1 275 372 A1 describes a vehicle body with a metal frame, which carries the rest of the body in the form of large plastic parts.
  • the so-called floor pan is formed of two parts, namely a cup-shaped lower part and a shell-shaped upper part, which together form side skirts and floor two-ply.
  • EP 1 781 527 B1 discloses a vehicle frame with a middle body part, which forms the passenger compartment and consists of metal, and a front carriage and a rear carriage made of a fiber composite material in RTM technology.
  • the object of the invention is to provide a simple and stable constructed vehicle body and to provide a corresponding manufacturing method thereof.
  • a vehicle body with a self-supporting passenger compartment the passenger compartment being a one-piece, trough-shaped bottom part made of fiber-reinforced, in particular carbon fiber-reinforced plastic, produced in particular in the RTM method. or shell-shaped side sill portions, and further comprising front and rear walls.
  • the passenger compartment also produced in particular by RTM process, fiber, especially carbon fiber reinforced, cross-section trough or shell-shaped side skirts lower parts made of plastic, which are glued to the side skirt sections of the bottom part to form a closed at least in cross-section hollow profile.
  • the rocker sections preferably have upwardly or downwardly open U-sections.
  • the vehicle body according to the invention is composed of extremely few parts, at least as far as the passenger compartment is concerned.
  • the oversized bottom part forms the core of the entire passenger compartment. Its stability is increased by a few adhered thereto parts so that the passenger compartment is self-supporting, namely through the side skirt sections.
  • a high structural rigidity is achieved, which for example also allows not to keep the passenger compartment stable over the roof, but also to use it as a roadster or convertible body.
  • the RTM process for the production of a self-supporting passenger compartment from very few parts extremely economical and above all suitable for mass production.
  • the RTM process relies on low-cost raw materials (dry fibers, resin containers) and dispenses with the expensive pre-impregnated fabrics. In previous chassis designs with preimpregnated fibers, more tool sets are necessary for the same number of units due to the considerably longer process times, which increases the fixed costs.
  • the wet-pressing process can also be used.
  • Another advantage of the large-area parts produced in the RTM process is that the parts are manufactured with high precision on both sides as they leave the mold. A post-processing of joining surfaces can be omitted.
  • the RTM construction forms some significant advantages.
  • the semi-finished products to be used are more favorable, namely dry fibers and large resin containers.
  • the cold chain can be omitted, and there is no waste due to expired prepregs, which must be stored at -18 ° C and have an expiration date.
  • Prepreg components are also cured under high pressures and high temperatures in expensive autoclaves.
  • the component does not have to be moved, a heating power is only to be made available for the tool. Also eliminates the complete vacuum structure, which is necessary with prepreg tools. The effort to seal the passenger compartment is reduced compared to conventional frame designs made of metal.
  • the carbon fiber passenger compartment also makes it possible to carry out the interior without panels, because the surface quality corresponds to that of previously used carbon fiber veneers.
  • the bottom part is preferably executed undercut, whereby its production can be kept simple.
  • the side sill panels may include a front and / or a rear pillar portion projecting up from the side sill, the front wall, a rearward side end of the front wall, or a pillar portion (e.g. B. the B-pillar) is glued to form a closed cross-section chamber / are.
  • the side skirts lower parts thus have an L- or U-shape in side view of the body and stabilize the passenger compartment at the corners front and rear or on the B-pillar.
  • a hollow chamber is formed, which is formed on the one hand by the bottom part and on the other hand by the corresponding portion of the side skirt bottom part.
  • the front column section should project into the area of the upper end of the front wall and / or the rear column section into the area of the side window cutout. That is, the pillar portions extend very far vertically upward to stabilize the vehicle body in the upper portion.
  • the rear wall can be additionally stabilized by a preferably in the RTM method produced back wall counter wall, wherein the back wall counter wall is bonded to the rear wall of the bottom part to form a closed chamber.
  • the self-supporting passenger compartment according to the preferred embodiment consists only of four parts, namely the bottom part, the two side sill sections and the back wall opposite wall. Thus, the passenger compartment is very inexpensive to produce, especially with little tooling.
  • the bottom part may be formed with a center tunnel section which forms a downwardly open tunnel.
  • the front wall also extends above the center tunnel section toward the side sills to stabilize the passenger compartment.
  • a metal in particular an aluminum sandwich plate, be screwed to the underside of the bottom part.
  • the bottom part itself is formed only from a carbon fiber part, namely the bottom part itself, in contrast to the prior art according to DE 1 275 372 A.
  • the rear wall should also extend very vertically upward, beyond the side sill level to approximately at the level of the lower end of the front window cutout of the finished body.
  • a significant weight saving for the entire vehicle can be achieved by the fact that seat shells are formed in the bottom part. These seats ensure that no seat itself must be mounted, but only pads are attached to the seat shells. When with the vehicle according to the invention provided body is then made the pedals adjustable, not the seat.
  • head restraints can be molded, which also serves the structural strength and the component and weight reduction.
  • the headrests can also be referred to as, generally speaking, rollover structure of the passenger compartment.
  • a separate, U-shaped circumferential windscreen frame in particular made in the RTM process to attach to the bottom part, namely by gluing and / or screw.
  • the windscreen frame then forms the A-pillars with its side legs.
  • the vehicle body according to the invention in addition to the passenger compartment, in particular made of carbon fiber reinforced plastic on a front end and / or rear end, which are attached to the passenger compartment. Front and / or rear carriage are carried out according to the preferred embodiment in the form of a frame structure made of metal, in particular aluminum.
  • This construction with a front and rear frame and a central carbon fiber passenger compartment has many advantages.
  • the crash structure is optimized by the frame structure, and on the other hand, the frame structure can be changed very easily and quickly, in order to make possible different vehicle bodies while the passenger cell remains the same.
  • the vehicle body can also be used as a modular delivery part for various vehicle manufacturers, so to speak as a vehicle platform, without the vehicle manufacturers having to give up their identity.
  • Vehicles of different appearance and different wheelbases can be produced via the different front and rear carriages.
  • the advantages of the materials metal, in particular aluminum for front and rear carriage, and carbon fiber are optimal depending on the section used.
  • the deformability of the metal, in particular of aluminum, in the event of a crash is optimized for the front end.
  • the three segments front, passenger and rear can also be easily replaced after damage.
  • the rear of a frame in turn allows for a rear-wheel drive a good accommodation and accessibility of the engine or.
  • the passenger compartment is self-supporting, that is, the frame structure of the front car does not pass through the passenger compartment to the rear carriage.
  • the preferred construction for the front and rear carriages is the so-called space-frame construction.
  • the passenger compartment according to the invention is entirely or almost completely dispensed foam cores, which increase the manufacturing cost and weight.
  • the benefits of incorporating core materials can be outweighed and taken into account in the design.
  • the area of the closed hollow profile of the side sill e.g. the corresponding cavity may be partially filled with a foam core to improve lateral crash stability.
  • Large areas can also be provided with core materials in order to increase the buckling stiffness (sandwich construction).
  • the shell construction on the one hand lightweight construction is achieved, and on the other cavities for laying cables, air ducts or water pipes are provided.
  • a preferred embodiment of the invention provides to provide one of the cavities between the shells of the passenger compartment as a sound box of a loudspeaker.
  • the invention relates to a method for producing a body according to the invention.
  • the method provides to produce the bottom part and the side skirt sections as one-piece parts in the RTM process and to glue together.
  • the other parts to be fastened to the passenger compartment should also be designed in one piece as RTM parts, for example the back wall counterpart wall.
  • the front and the rear wall have according to a preferred embodiment at its upper end a forward or rearward projecting fold, which further increases the stability.
  • FIG. 1 shows a perspective view of an embodiment of a vehicle body according to the invention
  • FIG. 2 shows a side view of the vehicle body according to FIG. 1,
  • FIG. 3 shows an exploded view of the passenger compartment of the vehicle body according to the invention
  • FIG. 4 shows a side view of a simplified basic diagram of the passenger compartment of the vehicle body according to the invention
  • FIG. 5 to 8 are sectional views through four different embodiments of the side sill of Figure 4 along the line A-A, and
  • Figure 9 is a perspective view of a simplified basic scheme of the passenger compartment of the vehicle body according to the invention.
  • FIG. 1 shows a vehicle body is shown, which consists of three separately preassembled and to be fastened together units, namely a front 10, a self-supporting passenger compartment 12 and a rear frame 14th
  • the front 10 and the rear 14 are designed to accommodate the vehicle axles and designed as a tubular frame, in particular made of aluminum in space frame construction.
  • the front 10 and the rear 14 are fixed to the passenger compartment 12 each frontally, preferably via plates 16 which are screwed to the passenger compartment 12 in numerous places.
  • the tubular frame does not extend through the passenger compartment 12, because this is, as already said, self-supporting.
  • the main component is a trough-shaped, one-piece bottom part 18 made of carbon fiber reinforced plastic, which is produced in the RTM process.
  • This bottom part 18 is executed undercut and can be made in a tool with upper and lower parts in one step.
  • the bottom part 18 comprises a plurality of sections, namely a vertically or obliquely vertically upwardly extending front wall 20 with an upper, vertically folded, possibly circumferential edge 22 to increase stability and a rear wall 24 which forms the rear wall of the passenger compartment. Also, the upper edge 26 of the rear wall is folded vertically to provide an increase in stability here as well.
  • the bottom 28 of the bottom part 18 is also closed except for passages for pedals or cables, in the bottom 28 receptacles 30 are formed for seats.
  • integral part of the bottom part 18 is a downwardly open center tunnel section 32nd
  • the center tunnel section 32 merges into the front and rear walls 20 and 24, with the front and rear walls 20 and 24 projecting upwards beyond the center tunnel section 32. Integral part of the rear wall 24 are also molded headrests 34, which serve as rollover protection.
  • the front wall 20 is pulled laterally to the door cutouts 36, so that the front wall 20 also includes side wall sections 38, which classically form the mounting area for the A pillar.
  • the door cutouts 36 are closed by side skirt sections 40 of the bottom portion down.
  • the side sill sections 40 are upwardly bulging trays or tunnel-like edges of the bottom portion 18 that extend from the floor 28 and are open at the bottom. In cross section, the sill sections 40 are U-shaped.
  • This side sill base 42 has a side view according to the illustrated, non-limiting embodiment, a U-shaped configuration.
  • the side legs of the "U" are formed by upwardly projecting column sections 44, 46.
  • the side skirts 42 are made in the RTM process and carbon fiber reinforced plastic parts that are executed undercut.
  • the illustrated side skirt section 40 is an upwardly bulging tunnel-like section with its free end 50 running down, and on the other hand that the side skirt lower part 42 likewise has a shell-like shape, in the example shown in FIG Essentially designed in cross-section L-shaped.
  • One leg of the "L” lies on the inside by overlapping on the edge 50 of the side sill section 40 and is adhesively bonded to the entire area in this area.
  • the other end of the "L” lies flat on the underside of the bottom 28 and is also in this area continuous and glued over the entire surface.
  • flat core materials 53 which serve to increase the rigidity, are embedded in the walls of the side sill section 40 and / or the lower part 42. These plates 53 are placed in the manufacture of the side skirt portion 40 and the lower part 42 between two fiber mats and thereby embedded in the parts.
  • the side skirt lower part 42 can be pulled around a core 54, for example made of foam, in sections (see FIG. 7), so that in this region the side skirt lower part 42 has a fully filled section. But also in this section, the side skirt portion 40 complements the side skirt bottom 42 to a closed circumferential profile, which is not completely hollow.
  • a section of the side skirt lower part 42 may carry a locally attached reinforcing body as the core 56, which however is not completely surrounded by the lower part 42 but is only laterally attached to the side skirt lower part 42 and connected to it. This core 56 partially fills the cavity 52 of the closed hollow profile partially or completely.
  • the view according to FIG. 4 is not the complete side view of the passenger compartment, but rather a stylized side view reduced to the side sill area, illustrating only the various possibilities of reinforcing the side sill by partially inserted cores 54, 56.
  • the rigidity of the passenger compartment is also increased by the fact that the front column section 44 serves as a shell, which closes the likewise shell-like side wall 38, so that in this area a substantially closed chamber is formed.
  • the counter wall 60 is a carbon fiber reinforced plastic part, which is manufactured in one piece in the RTM process and is preferably designed undercut.
  • the counter wall 60 is closed with the rear wall 24 and the soschweller- divide 42 circumferentially and glued surface, here also be folded edges 62 provide additional reinforcement and an overlap area in which the adhesive application 55 can be made.
  • underbody protection plate in the form of an aluminum sandwich plate, which is to protect the bottom 28 and optionally also close the central tunnel 32.
  • the front pillar portion 44 protrudes to the upper end of the front wall 20 and the side wall 38, which extend up to the side window opening in a vertical upward direction.
  • the rear pillar portion 36 also extends into the region of the side window cutout, ie in the region of the upper end of the seat back.
  • U-shaped circumferential windscreen frame 70 (see Figure 1) is bolted or glued to the bottom part 12. This frame 70 then forms the A-pillar.
  • the passenger compartment 12 consists essentially of only four bowl-shaped parts, namely the bottom part 18, the Rare bottom parts 42 and the counter wall 60. These parts are responsible for the self-supporting stability of the passenger compartment.
  • the vehicle body shown may also be designed for a four-seater, possibly with a side skirt lower part 42 extending from the A to the B or even the C-pillar and a continuous floor part 8 which extends to the rear wall 24 of the passenger compartment , Alternatively, however, a front and a rear floor part could be executed, which are glued together in the region of the backrests of the front seats.
  • the undercut-free shell construction allows easy production of the few items and the formation of closed chambers or hollow sections.
  • the chambers can also be used to accommodate installation parts or to run pipes or cables.
  • the chamber resulting between the side wall 38 and the front pillar portion 44 is designed, for example, as a sound box of a hi-fi system.
  • FIG. 9 serves only to illustrate in principle the basic scheme of the present passenger cell constructions, with the trough-shaped bottom part 18 and the closed hollow profiles which result in the area of the side branches 40.
  • center tunnel 38 may be omitted and that the bodies housed in the side sills may be implemented as energy-absorbing foam blocks.
  • the bottom part 18 is manufactured in a closed tool in one operation and is preferably designed purely monolithic, as it also applies to the side skirt bottom parts 42 and the counter wall 62.
  • threaded sleeves or bolts, bolts, etc. may be embedded in these parts, ie quite generally parts for attachment of adjacent parts.
  • the production of large-scale body parts in the RTM process is carried out in a customized tool with upper and lower part, first in the lower part an un-saturated, dry carbon fiber mat is inserted and then the tool is closed before the liquid plastic in the cavity is introduced.
  • the molding compound is injected in particular via a heated prechamber and distribution channels in the so-called mold cavity, where the mass penetrates into the carbon fiber mats and finally cures under heat and pressure.
  • the parts produced need only be trimmed at the edge, otherwise no further processing is necessary.
  • wet pressing method in which impregnated fiber mats are pressed between two molds in the form, can be used for the production of the bottom part and / or the side skirt bottom part.

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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

L'invention concerne une carrosserie de véhicule comprenant un habitacle autoporteur (12) doté d'une partie fond en forme de cuvette (18) en matière plastique renforcée par des fibres, fabriquée en particulier au cours d'un procédé RTM, ainsi que des parties inférieures de bas de caisse (42) collées sur des parties de bas de caisse en forme de canal (40) de la partie fond (18) avec formation d'un profilé creux fermé. La partie fond comprend en outre également une paroi avant et une paroi arrière (20, 24).
PCT/EP2011/001850 2010-04-12 2011-04-12 Carrosserie de véhicule et procédé de fabrication d'une carrosserie de véhicule WO2011128081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010014574 DE102010014574B4 (de) 2010-04-12 2010-04-12 Fahrzeugkarosserie und Verfahren zum Herstellen einer Fahrzeugkarosserie
DE102010014574.2 2010-04-12

Publications (1)

Publication Number Publication Date
WO2011128081A1 true WO2011128081A1 (fr) 2011-10-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/001850 WO2011128081A1 (fr) 2010-04-12 2011-04-12 Carrosserie de véhicule et procédé de fabrication d'une carrosserie de véhicule

Country Status (2)

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DE (1) DE102010014574B4 (fr)
WO (1) WO2011128081A1 (fr)

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CN105228881A (zh) * 2013-05-16 2016-01-06 宝马股份公司 用于车辆的碰撞结构
CN105599571A (zh) * 2014-11-13 2016-05-25 丰田自动车株式会社 车辆树脂面板结构
WO2017046217A2 (fr) 2015-09-15 2017-03-23 Mubea Carbo Tech Gmbh Coque de carrosserie d'automobile
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CN109823415A (zh) * 2019-02-28 2019-05-31 中国第一汽车股份有限公司 一种组合式碳纤维车身门槛与地板结构
CN109863076A (zh) * 2016-10-27 2019-06-07 本田技研工业株式会社 汽车用车身构造
JP2020501956A (ja) * 2016-12-22 2020-01-23 オートモビリ ランボルギーニ ソチエタ ペル アツイオニ 車両用耐荷重構造
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CN113524808B (zh) * 2021-06-22 2024-02-20 广东汇天航空航天科技有限公司 飞行汽车地板及其制备方法和飞行汽车
DE102022116474B4 (de) 2022-07-01 2024-10-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Heckmittelteil für ein Kraftfahrzeug, entsprechendes Kraftfahrzeug und Verfahren zu dessen Herstellung

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ITMI20110212A1 (it) * 2011-02-11 2012-08-12 Automobili Lamborghini Spa Monoscocca per autoveicoli e processo per la sua fabbricazione
CN104364141A (zh) * 2012-06-13 2015-02-18 奥迪股份公司 用于机动车车身的车身承载结构
CN105228881A (zh) * 2013-05-16 2016-01-06 宝马股份公司 用于车辆的碰撞结构
US20160059904A1 (en) * 2013-05-16 2016-03-03 Bayerische Motoren Werke Aktiengesellschaft Crash Structure for a Vehicle
CN105599571A (zh) * 2014-11-13 2016-05-25 丰田自动车株式会社 车辆树脂面板结构
WO2017046217A2 (fr) 2015-09-15 2017-03-23 Mubea Carbo Tech Gmbh Coque de carrosserie d'automobile
CN109863076B (zh) * 2016-10-27 2021-09-21 本田技研工业株式会社 汽车用车身构造
CN109863076A (zh) * 2016-10-27 2019-06-07 本田技研工业株式会社 汽车用车身构造
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GB2552852B (en) * 2016-12-22 2019-02-06 Woven Tech Ltd A monocoque structure
JP2020501956A (ja) * 2016-12-22 2020-01-23 オートモビリ ランボルギーニ ソチエタ ペル アツイオニ 車両用耐荷重構造
GB2552852A (en) * 2016-12-22 2018-02-14 Woven Tech Ltd A monocoque structure
CN109823415A (zh) * 2019-02-28 2019-05-31 中国第一汽车股份有限公司 一种组合式碳纤维车身门槛与地板结构
CN109823415B (zh) * 2019-02-28 2024-08-02 中国第一汽车股份有限公司 一种组合式碳纤维车身门槛与地板结构
WO2024170785A1 (fr) 2023-02-17 2024-08-22 Segula Engineering Structure de véhicule automobile en matériaux composites et véhicule ainsi obtenu
FR3145922A1 (fr) 2023-02-17 2024-08-23 Segula Engineering Structure de véhicule automobile en matériaux composites et véhicule ainsi obtenu.

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