WO2012163487A1 - Structure avant d'une carrosserie de véhicule automobile, présentant une structure d'appui agissant sur la roue avant en cas de collision frontale décalée - Google Patents

Structure avant d'une carrosserie de véhicule automobile, présentant une structure d'appui agissant sur la roue avant en cas de collision frontale décalée Download PDF

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Publication number
WO2012163487A1
WO2012163487A1 PCT/EP2012/002177 EP2012002177W WO2012163487A1 WO 2012163487 A1 WO2012163487 A1 WO 2012163487A1 EP 2012002177 W EP2012002177 W EP 2012002177W WO 2012163487 A1 WO2012163487 A1 WO 2012163487A1
Authority
WO
WIPO (PCT)
Prior art keywords
shell
support
front wheel
support structure
stem
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
Application number
PCT/EP2012/002177
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Blume
Hans Hofele
Matthias Nohr
Jochen Ruf
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.)
Mercedes Benz Group AG
Original Assignee
Daimler 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 Daimler AG filed Critical Daimler AG
Publication of WO2012163487A1 publication Critical patent/WO2012163487A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152—Front or rear frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152—Front or rear frames
    • B62D21/155—Sub-frames or underguards

Definitions

  • the invention relates to a stem structure of a passenger car body, according to the preamble of claim 1.
  • both longitudinal carrier structures of the body shell and components of a front axle, in particular a integral or engine carrier called a subframe, can contribute to the energy reduction.
  • a passenger compartment of the passenger car is largely protected against deformations and intrusions, and the load on occupants of the passenger compartment can be kept very low.
  • Passing by can dissipate only little energy, so that it can come to increased intrusions of the passenger compartment.
  • From DE 102 23 674 A1 discloses a bumper assembly of a motor vehicle, which has a stem with a cross member, which is attached by means of horn-shaped corner parts to inner side members of the motor vehicle support structure.
  • the cross member can be decoupled from the corner parts, so that when one also as an offset impact designated offset frontal impact only the affected corner part must be replaced.
  • a body stem is apparent in which at the level of a front wheel, a component is arranged, which is displaced in a frontal impact with low structural overlap in the direction of the Vorrades, punctures the tire and engages the wheel rim to the front wheel to turn. In this way, penetration of the front wheel into the foot region of the passenger compartment is to be avoided.
  • the component is attached to a pulled down in front of the front wheel of the upper side member so that it can only be used in a specially designed stem, but not in standard carcass stems.
  • Such a front structure of a passenger car body includes a
  • Biegequer which is held on two longitudinal members of the shell of the porch structure.
  • the longitudinal members are spaced apart in the vehicle transverse direction. Furthermore, in a staggered frontal impact with a front wheel of the
  • the support structure according to the invention is particularly advantageous in load cases with very little overlap, so if the respective, laterally arranged next to the front wheel inner, lower side member of the collision partner is not activated acted upon.
  • the shell and / or subframe, in particular integral support provided support structure displaced against the front wheel is supported there, so to speak, and thus forms an additional load path or a bond between the front wheel and subframe, in particular integral support.
  • the aim is to allow load transfer into the integral carrier or via the integral carrier into the shell structure through the lateral support structure and thus contribute to the energy reduction.
  • the lateral support Alternatively or in addition to the connection to the integral support, the lateral support
  • Support structure for example, be connected to the existing side rail structures.
  • a connection of the lateral support structure on its outside to a wheel arch structure can additionally be provided.
  • other structures such as longitudinal and transverse beams can be used to connect the support structures. This is intended to ensure stabilization of the lateral structure while driving and, at the same time, to increase the rigidity in the stem.
  • the support structure allows the inclusion of at least part of the impact energy and the activation of not directly activated in the event of a crash shell structures of the stem structure by the impact energies are introduced via the support structure in the shell, even if the space provided for this Vorbaumtruktur due to the low coverage with the
  • Collision partner is not activated directly because the barrier moves past it.
  • the passenger compartment is thus largely protected against deformations and intrusions even in such a load case with only slight overlap, so that the forces acting on occupants of the passenger compartment loads can be kept low.
  • the part of the front structure which is advantageously activated by the support structure is, for example, longitudinal member structures which comprise the side members which are spaced apart in the vehicle transverse direction and into which the impact energies can be introduced in the case of accidental application of force to the support structure.
  • the side members can support the initiated impact forces, at least partially convert into deformation energy and distribute it in other structures of the shell of the porch structure. This therefore means that at least one of the support structures formed by the longitudinal beams
  • (Main) load paths at least one additional load path is formed over which the Impact energies can be at least partially taken up and introduced into the shell.
  • the corresponding structures of the shell can be activated and acted upon with impact energy and reduce the impact energy accordingly.
  • the corresponding front wheels at least partially disposed in the respective wheel arches and there is a frontal impact with only a slight overlap, in which the barrier mainly on one side of the stem structure on one of the support structures, at least this is a support structure in the lateral region of the front structure in Support system moves with the corresponding, arranged in the vehicle longitudinal direction behind this one support structure front wheel.
  • Support structures for example, on an integral support for holding a
  • Attached front structure so by the support of at least one support structure on the rear wheel arranged behind a composite between the front wheel and the integral support on the corresponding support structure created, so that a particularly advantageous introduction of impact energy into or over the support structure and the integral support in the shell is possible.
  • the shell can contribute to reducing the impact energy and protect the occupants.
  • the supporting structure can be connected to the longitudinal carrier structures, in particular to a longitudinal carrier.
  • the support structure is connected in particular on its outer side in the vehicle transverse direction on the shell and in particular on a respective wheel arches at least partially limiting shell component.
  • the support structure on longitudinal and / or cross members of the front structure or the shell, thereby realizing a particularly advantageous energy input into the shell, so that the shell as early as possible in the course of the impact on the vehicle front on the degradation the impact energies can participate.
  • a stabilization of lateral structures of the front structure during driving can be ensured as well as the stem structure stiffened.
  • the support structure is formed integrally with the integral support.
  • the integral carrier can be held, for example, on the front structure, in particular on the inner lower side members.
  • Integral carrier which keeps the number of parts and the weight of the stem structure low.
  • the support structure is formed as a respective element separate from the integral support and the shell, and as
  • Biegequer is held on the longitudinal members, formed separate element and is mounted as a mounting perimeter on the longitudinal members and / or on the energy absorbing elements.
  • Support structure for example, at least one support element, at least
  • the support element may be at least substantially tubular and / or flat and / or cup-shaped.
  • the support element is at least substantially made of a metallic material such as a steel or a
  • the support structure is formed of a composite material, in particular a fiber composite, or of a plastic material. Furthermore, in an area relative to the vehicle longitudinal direction between respective suspension legs of the front structure and respective front headlights at least one, in particular flat
  • Absorption element to be integrated which provides for a very advantageous energy absorption in different frontal impact scenarios, however, especially in a frontal impact with low coverage.
  • stem structure according to the invention at least one support structure, as described above or according to
  • the support structure is preferably arranged on the driver's side. If such a support structure is required on both sides of the passenger car, then these are preferably formed identically.
  • Fig. 1 is a schematic representation of a front view of a
  • Fig. 2 is a schematic perspective view of the front structure of FIG. 1 obliquely from the front to the left side of the passenger car and
  • Fig. 3 is a schematic side view of the stem structure according to FIGS. 1 and
  • 1 to 3 show a front structure 10 of a body 12 of a
  • the front structure 10 includes a bumper device with a bending cross member 16 which is held on inner, lower side members 18 and 20 of a first longitudinal beam level, preferably lower longitudinal beam plane of the shell 22 of the front structure 10.
  • the longitudinal members 18, 20 are spaced apart in the vehicle transverse direction.
  • wheel arches 24, 26 are at least partially formed, which are spaced apart in the vehicle transverse direction.
  • respective front wheels 28, 30 of a front axle of the passenger car 14 are arranged in the wheel arches 24, 26 at least in regions.
  • the front wheels 28; 30 are sprung via respective struts 32, 34 supported on the shell 22 and damped.
  • the struts 32, 34 are supported on the one hand on a respective wheel carrier and on the other hand on respective damper domes 36, 38 of the shell 22.
  • the stem structure 10 comprises respective support structures 40 and 42 with a respective support element 44, 46, which the respective wheel arches 24, 26 and thus the front wheels 28, 30 in the vehicle longitudinal direction to cover forward and in
  • the bending cross member 16 has with view towards the front wheels only a very small overlap with these.
  • the exemplary one-piece support members 44, 46 are formed in the embodiment shown in the figures substantially L-shaped and have a substantially extending in the vehicle vertical direction first longitudinal region 48 and 50 and a substantially extending in the vehicle transverse direction second longitudinal region 52 and 54 respectively.
  • the transition region between the first and second longitudinal region is curved. Since both support elements 44 and 46 are identically constructed and fastened in the same way to the body shell, their attachment will be explained in more detail below with reference to the support element 44.
  • the support element 44 is connected to the free end or leg of its second length portion 52, which is substantially parallel to an imaginary
  • the integral support 60 serves to keep a drive unit, such as an internal combustion engine, for driving the passenger car 14 on the front structure 10.
  • the integral support 60 is attached to the shell 22.
  • the first length portion 48 of the support member 44 is arranged substantially centrally to the front wheel 28 and coupled in its end with a bracket which in turn in the region of the free end of the bending cross member 16 at this and also at the wheel well 24 or a Part of the wheel arch 24 forming shell structural member 56 is attached.
  • This curved, the shape of the wheel housing 24 with ausciosciosgende structural component 56 extends high up to an upper side rail level and is fixed there accordingly.
  • the structural component 56 itself is connected near its connection region to the support element 44 by means of a connecting and support strut laterally also on the inner side member 18.
  • the support element 44 - viewed in the direction of the vehicle front - is arranged in overlap with the front wheel 28, so that in the case of a crash-induced rearward displacement of the support element 44, the front wheel 28 is taken or the support member 44 can be supported on the front wheel 28.
  • the support member 44 is integrated into the front structure, that although it is a mounting part or a mounting part could be part of the same and in the event of a crash, the forces laterally in the shell or shell structures, in particular directly into the side member structures or the integral carrier in the porch structures on or forwards, where they can be at least partially absorbed.
  • a possible impact region P is indicated by way of example, in which, in particular, predominantly the accidental application of force to the support structure 40 as a result of the head-on collision of the passenger car 14 can occur on the barrier with only slight overlap.
  • Support member 44 is formed, whereby a first load path is created in the frontal structure 10 in the frontal impact and the associated accidental application of force. Impact energy can be absorbed and introduced into the integral carrier 60 via this first load path and can be further introduced from this into the shell of the front-end structure 10. As a result, further shell structures of the front structure 10 and formed by this further load paths are activated and with impact energy
  • a load introduction into or via the integral support 60 into the shell for example also into the side member 18, to which the integral support 60 is fastened, inter alia, so that the shell can contribute early to the energy reduction.
  • a second load path from the support element 44 in the front structure, namely the bending cross member 16 is formed by means of the holder, via which the support member 44 is attached to the bending cross member, which in turn is preferably coupled via crash boxes with the side rails 18, 20. Further load paths from the support element 44 in the front structure, in particular the side member structures are on the connection of the shell structural component 56 of the wheel arch and the lateral support or connection of this
  • Structural component 56 is realized by means of the connecting and support strut on the laterally adjacent, inner lower side member 18 realized.
  • the passenger compartment of the passenger car 14 can be at least largely protected against deformation and intrusions, particularly in the case of the impact of the passenger car 14 on the barrier with only slight overlap, so that the loads acting on the occupants of the passenger compartment can be kept to a particularly low level.
  • the support elements 44, 46 are at least substantially tubular and allow a particularly advantageous absorption and initiation of the impact energy in particular in the integral support 60, then the impact energy can be introduced into the shell 22 and distributed in this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne une structure avant (10) d'une carrosserie (12) d'un véhicule automobile, comprenant une poutre transversale (16) déformable maintenue contre deux longerons (18, 20) de la structure brute (22) de la structure avant (10), lesdits deux longerons étant mutuellement espacés dans la direction transversale du véhicule, et un composant coopérant avec une roue avant en cas de collision frontale décalée. La structure avant se distingue par un composant qui est fixé au moins indirectement au longeron disposé adjacent à la roue avant, ou à un cadre auxiliaire relié à la structure brute, et qui est conçu comme une structure d'appui (40, 42) qui – vu dans la direction de marche avant du véhicule automobile - pénètre jusque dans une zone en amont de la roue avant de façon que, lors d'une collision frontale décalée, la structure d'appui puisse s'appuyer sur la roue avant, ce qui permet une introduction de force dans la structure avant de la structure brute soit directement, soit par l'intermédiaire du cadre auxiliaire.
PCT/EP2012/002177 2011-05-28 2012-05-23 Structure avant d'une carrosserie de véhicule automobile, présentant une structure d'appui agissant sur la roue avant en cas de collision frontale décalée Ceased WO2012163487A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110102758 DE102011102758A1 (de) 2011-05-28 2011-05-28 Vorbaustruktur einer Personenkraftwagenkarosserie
DE102011102758.4 2011-05-28

Publications (1)

Publication Number Publication Date
WO2012163487A1 true WO2012163487A1 (fr) 2012-12-06

Family

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Family Applications (1)

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PCT/EP2012/002177 Ceased WO2012163487A1 (fr) 2011-05-28 2012-05-23 Structure avant d'une carrosserie de véhicule automobile, présentant une structure d'appui agissant sur la roue avant en cas de collision frontale décalée

Country Status (2)

Country Link
DE (1) DE102011102758A1 (fr)
WO (1) WO2012163487A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9260135B2 (en) 2014-06-05 2016-02-16 Ford Global Technologies, Llc Deflector structure
CN112969630A (zh) * 2018-11-09 2021-06-15 戴姆勒股份公司 用于汽车白车身的前舱结构总成以及用于这种前舱结构总成的副车架
CN114347935A (zh) * 2020-10-14 2022-04-15 本特勒汽车有限公司 用于汽车的保险杠装置
WO2024260516A1 (fr) * 2023-06-22 2024-12-26 Bayerische Motoren Werke Aktiengesellschaft Système de pare-chocs pour un véhicule automobile et véhicule automobile équipé d'un tel système de pare-chocs

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
DE102013015882A1 (de) 2013-09-23 2015-03-26 Audi Ag Vorrichtung zur Übertragung einer bei einem Frontaufprall auf ein Kraftfahrzeug wirkenden Kraft
DE102014005465A1 (de) 2014-04-12 2015-10-15 Daimler Ag Biegequerträger
FR3064970B1 (fr) 2017-04-06 2019-03-29 Peugeot Citroen Automobiles Sa Renforcement de plancher de vehicule en cas de choc frontal a faible recouvrement
DE102018201805A1 (de) 2018-02-06 2019-08-08 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug mit elektrischem Hybridantrieb oder Elektroantrieb und einer Crashenergie-Aufnahmeeinrichtung
CN110626432B (zh) * 2018-06-25 2021-12-07 比亚迪股份有限公司 车身结构和车辆
EP3954586A1 (fr) * 2020-08-13 2022-02-16 Volkswagen Ag Extrémité avant de véhicule
DE102022004886B4 (de) 2022-12-22 2024-05-08 Mercedes-Benz Group AG Fahrzeug

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JPH058755A (ja) * 1991-06-29 1993-01-19 Mazda Motor Corp 自動車の前部構造
DE10223674A1 (de) 2002-05-28 2003-12-18 Daimler Chrysler Ag Stoßfängeranordnung für einen Vorbau eines Kraftfahrzeugs
DE102004036332A1 (de) * 2004-07-27 2006-03-23 Benteler Automobiltechnik Gmbh Kraftfahrzeug
JP2006103591A (ja) * 2004-10-07 2006-04-20 Nissan Motor Co Ltd 車体前部構造
JP2006175988A (ja) * 2004-12-22 2006-07-06 Mazda Motor Corp 車体前部構造
DE102006023550A1 (de) 2006-05-19 2008-01-03 GM Global Technology Operations, Inc., Detroit Karosserievorderbau für ein Kraftfahrzeug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058755A (ja) * 1991-06-29 1993-01-19 Mazda Motor Corp 自動車の前部構造
DE10223674A1 (de) 2002-05-28 2003-12-18 Daimler Chrysler Ag Stoßfängeranordnung für einen Vorbau eines Kraftfahrzeugs
DE102004036332A1 (de) * 2004-07-27 2006-03-23 Benteler Automobiltechnik Gmbh Kraftfahrzeug
JP2006103591A (ja) * 2004-10-07 2006-04-20 Nissan Motor Co Ltd 車体前部構造
JP2006175988A (ja) * 2004-12-22 2006-07-06 Mazda Motor Corp 車体前部構造
DE102006023550A1 (de) 2006-05-19 2008-01-03 GM Global Technology Operations, Inc., Detroit Karosserievorderbau für ein Kraftfahrzeug

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9260135B2 (en) 2014-06-05 2016-02-16 Ford Global Technologies, Llc Deflector structure
CN112969630A (zh) * 2018-11-09 2021-06-15 戴姆勒股份公司 用于汽车白车身的前舱结构总成以及用于这种前舱结构总成的副车架
US11932309B2 (en) 2018-11-09 2024-03-19 Daimler Ag Front-end structure arrangement for a motor vehicle bodyshell and assembly carrier for such a front-end structure arrangement
CN114347935A (zh) * 2020-10-14 2022-04-15 本特勒汽车有限公司 用于汽车的保险杠装置
WO2024260516A1 (fr) * 2023-06-22 2024-12-26 Bayerische Motoren Werke Aktiengesellschaft Système de pare-chocs pour un véhicule automobile et véhicule automobile équipé d'un tel système de pare-chocs

Also Published As

Publication number Publication date
DE102011102758A1 (de) 2012-11-29

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