EP1592602A1 - Structure portante de v hicule moteur - Google Patents

Structure portante de v hicule moteur

Info

Publication number
EP1592602A1
EP1592602A1 EP03785905A EP03785905A EP1592602A1 EP 1592602 A1 EP1592602 A1 EP 1592602A1 EP 03785905 A EP03785905 A EP 03785905A EP 03785905 A EP03785905 A EP 03785905A EP 1592602 A1 EP1592602 A1 EP 1592602A1
Authority
EP
European Patent Office
Prior art keywords
wheel
impact element
crumple zone
crash
support ramp
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.)
Withdrawn
Application number
EP03785905A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Baumann
Uwe Krempels
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
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1592602A1 publication Critical patent/EP1592602A1/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a support structure for a motor vehicle according to the preamble of claim 1.
  • Such a support structure is disclosed, for example, in EP 1044863 AI, where there is a deflecting surface that runs obliquely downward from the direction of travel, in each case for an assigned wheel of a motor vehicle, the corresponding wheel being countered by the crash-induced deformation of the crumple zone of the motor vehicle support structure described there the deflecting surface is moved and, as a result of the further movement when the crumple zone is deformed, is guided along the deflecting surface in the direction of a safety passenger cell of the motor vehicle support structure and is lowered under a floor of this structure.
  • German utility model 9312073.7 shows a destructively deformable deformation zone provided between a tire and a passenger cabin in order to provide a relatively stiff passenger cabin with simultaneously improved absorption of impact energy.
  • a support structure for a motor vehicle which is provided at a front end of a safety passenger compartment with a front car with a crumple zone and two wheel arches arranged laterally in the region of the crumple zone, in each of which a wheel consisting of an air-filled wheel tire and a relatively rigid wheel rim , is arranged.
  • the support structure according to the invention for a motor vehicle has an inclined downward wheel support ramp, by means of which the respective wheel, which is moved against the wheel support ramp as a result of a crash-related deformation of the crumple zone, can be guided downward in the direction of the safety passenger cell.
  • an additional wheel impact element is also provided for each wheel, which can be deformed by the respective wheel moved as a result of the deformation of the crumple zone due to the crash, in order to absorb additional energy, in particular the energy required to deform the relatively rigid wheel rim.
  • both a wheel support ramp and an additional wheel impact element Due to the provision of both a wheel support ramp and an additional wheel impact element according to the invention, it is thus possible, on the one hand, to provide both a sufficiently stable and safe wheel guide which prevents the front of the vehicle from immersing and thus the risk of the occupants bumping their heads against the inside of the safety passenger compartment certain areas, such as the A pillar of the passenger compartment, prevented.
  • This interaction according to the invention thus additionally increases the safety for the vehicle occupants in a special way.
  • the force or deceleration which acts on the wheel support ramp due to the movement as a result of the crash-related deformation of the crumple zone of the respective wheel is via a suitable design parameter of the wheel support ramp and / or of the respective wheel impact element with a force or a deceleration tunable, which acts on the respective wheel impact element due to the movement as a result of the crash-induced deformation of the crumple zone of the respective wheel.
  • This coordination of the wheel support ramp with the respective wheel impact element makes it particularly easy to control the interaction between the force or deceleration curve and the vehicle kinematics (vehicle inclination, lowering of the vehicle front end) via the corresponding design parameters of the wheel support ramp and / or the respective wheel impact element.
  • a sudden increase in the force or deceleration values that act on the occupants, particularly in a later impact phase can be avoided in a particularly reliable manner.
  • the deceleration and thus the energy absorption as well as the kinematics of the vehicle can be influenced via the suitable, adjustable construction parameters of the wheel support ramp and / or the respective wheel impact element.
  • the vehicle can be steerable in a certain direction during a collision by suitable selection of the respective construction parameters, in particular immersion of the front end while the deformation zone is still available is prevented by the wheel impact element.
  • suitable construction parameters are the material properties of the wheel support ramp and / or the respective wheel impact element, the material properties in particular the strength and rigidity of the wheel support ramp and the respective wheel impact element can play a special role.
  • the deformation paths of the wheel support ramp and / or the respective wheel impact element can also be used alone or in combination with the other construction parameters as suitable parameters for coordinating the wheel support ramp and / or the respective wheel impact element.
  • the geometry of the wheel support ramp and / or of the respective wheel impact element is also preferred as a suitable design parameter, by itself or in combination with the construction parameters already mentioned, with respect to the geometry of the wheel support ramp in particular the angle o and / or the structurally predetermined distance of the wheel from the wheel impact element can be suitable geometry parameters. It is particularly preferred if the wheel impact element lies essentially at the level of the axis of the respective wheel in the event of a crash, in order to ensure the most reliable possible additional energy consumption by appropriate deformation of the respective wheel impact element.
  • a configuration of a motor vehicle support structure which is preferred according to the invention is particularly simple to implement, in which the respective wheel impact element is designed as an extension of a respective sill of the safety passenger cell in the direction of the respective wheel.
  • the correspondingly constructed respective wheel impact element can be deformed particularly easily and reliably by the respective wheel in the event of a crash.
  • the essential structural elements of the support structure according to the invention can preferably consist of suitable light metal materials or correspondingly suitable steel sheets, with a suitable choice of materials depending on because it is possible to constructively adjust the stiffness and deformability values.
  • FIGS. La-d show five schematic side views of the front crumple zone and the front region of the safety passenger cell of a support structure of a motor vehicle that follows it, wherein the four representations show chronologically successive stages of a frontal impact of a corresponding motor vehicle on an obstacle are and
  • Fig. 2 schematically illustrates force and movement directions of individual structural elements of the support structure according to a preferred embodiment of FIG. 1.
  • FIG. 1 shows five schematic side views of the region of the front vehicle of a motor vehicle with a support structure according to a preferred embodiment of the present invention.
  • the same design features are denoted by the same reference numerals.
  • Fig. La shows a front part of a support structure of a motor vehicle before impact with a solid obstacle 9.
  • the support structure according to the invention is formed by a Si Safety passenger compartment 1 with a front end having a crumple zone 2, which deforms in the impact to absorb energy, the support structure according to the invention being provided with two wheel arches arranged laterally in the region of the crumple zone, in each of which a wheel 3, consisting of a wheel tire 4, which is usually by a commercially available tubeless air tire is formed, and a wheel rim 5, usually made of stainless steel or aluminum, is arranged.
  • the supporting structure according to the invention has a downward-running wheel support ramp 6 in the front area of the safety passenger compartment 1, through which the respective wheel 3 moved against the wheel support ramp 6 as a result of a crash-related deformation of the crumple zone 2 in the direction of the safety passenger compartment 1 downward the area of the floor of the safety passenger compartment 1 is feasible.
  • the support structure according to the invention has an additional wheel impact element 7, which can be deformed by the respective wheel 3, which is moved as a result of a deformation of the crumple zone 2 due to a crash, for the corresponding additional energy absorption, in particular for absorbing further deformation energy due to the wheel rim 5.
  • the structural elements of the support structure according to the invention can be formed by suitable steel or aluminum materials, which are well known in automotive engineering and are therefore not described further here.
  • Fig. Lb shows the support structure of a motor vehicle according to the invention at the moment the corresponding motor vehicle hits the obstacle 9, the crash-related deformation of the front crumple zone 2 just beginning here.
  • the wheel impact element 7 is designed as an extension of a sill 8 of the safety passenger compartment 1 in the direction of the wheel 3.
  • the corresponding wheel 3 is guided downward along the inclined surface of the wheel support ramp 6 into the region of the bottom of the support structure according to the invention. This is due to the further crash-related forward movement of the entire support structure of the motor vehicle.
  • a deformation of the additional wheel impact element 7 for corresponding additional energy absorption is shown in FIG , according to the invention, the additional wheel impact element 7 is preferably located approximately at the level of the axis of the wheel 3 at this late impact point.
  • FIG. 2 schematically shows the directions of movement and force which result in a preferred embodiment of the present invention according to FIG. 1.
  • the arrow pointing obliquely upward in FIG. 2 indicates the relative movement of the wheel support ramp 6 with respect to the wheel 3, which can be guided downwards (viewed from the direction of travel) by the wheel support ramp.
  • FIG. 2 on the one hand indicates the force level F1 and the corresponding direction of force as well as the deformation path ⁇ sl of the additional wheel impact element 7 provided according to the invention under the influence of the movement of the wheel 3 caused by the crash.
  • the arrow from bottom left to top right in FIG. 2 indicates the force level F2, the corresponding force direction and the deformation path ⁇ s2 of the wheel 3 moved as a result of the crash.
  • FIG. 2 a large part of the force occurring due to the crash due to the movement of the wheel 3 is absorbed by the corresponding additional wheel impact element 7 (long horizontal arrow in FIG.
  • the force profiles F1, F2 and the deformation paths ⁇ sl, ⁇ s2 can be coordinated via corresponding construction parameters of the support structure according to the invention, in particular also via the flexibility the wheel impact element 7 (force level Fl, deformation path ⁇ sl) and its position in relation to the wheel (see FIG. 1d) and the compliance, the position and the angle of inclination ⁇ ; the wheel support ramp 6 in cooperation with the crash-induced movement of the wheel 3 (force level F2, deformation path ⁇ s2).

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 portante de véhicule à moteur dotée, à l'extrémité avant de la cellule de sécurité (1), d'une partie avant qui comporte une zone de déformation (2) et deux passages de roue disposés latéralement relativement à la zone de déformation (2), ces passages de roue abritant chacun une roue (3) constituée par un pneu (4) et une jante (5). Vu dans le sens de marche du véhicule, une rampe d'appui de roue (6) inclinée vers le bas sert à abaisser la roue (3) en direction de la cellule de sécurité (1) lorsque cette roue (3) est déplacée contre la rampe d'appui de roue (6) suite à une déformation de la zone de déformation (2) due à un impact. L'invention est caractérisée en ce que chaque roue (3) est équipée d'un élément d'impact supplémentaire (7) qui permet à la roue (3) déplacée par la déformation de la zone de déformation (2) due à un impact d'absorber en plus l'énergie correspondante.
EP03785905A 2003-02-13 2003-12-20 Structure portante de v hicule moteur Withdrawn EP1592602A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10305910A DE10305910B4 (de) 2003-02-13 2003-02-13 Tragstruktur für einen Kraftwagen
DE10305910 2003-02-13
PCT/EP2003/014682 WO2004071851A1 (fr) 2003-02-13 2003-12-20 Structure portante de véhicule à moteur

Publications (1)

Publication Number Publication Date
EP1592602A1 true EP1592602A1 (fr) 2005-11-09

Family

ID=32797371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785905A Withdrawn EP1592602A1 (fr) 2003-02-13 2003-12-20 Structure portante de v hicule moteur

Country Status (5)

Country Link
US (1) US7441829B2 (fr)
EP (1) EP1592602A1 (fr)
JP (1) JP2006513900A (fr)
DE (1) DE10305910B4 (fr)
WO (1) WO2004071851A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034468B4 (de) * 2005-07-23 2009-06-04 Daimler Ag Tragstruktur eines Kraftfahrzeug-Vorderteiles
KR100836425B1 (ko) * 2007-02-05 2008-06-09 삼성에스디아이 주식회사 유기 전계 발광표시장치 및 그 구동방법
GB2482002A (en) * 2010-07-14 2012-01-18 Gordon Murray Design Ltd Chassis with rigid member for wheel contact in crash
DE102011116448A1 (de) 2011-10-20 2013-04-25 Gm Global Technology Operations, Llc Deformationseinrichtung und Kraftfahrzeug
DE102013101697A1 (de) * 2013-02-20 2014-08-21 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kraftfahrzeugtragstruktur
JP6020493B2 (ja) * 2014-03-12 2016-11-02 株式会社豊田自動織機 車両
GB201410154D0 (en) * 2014-06-09 2014-07-23 Gordon Murray Design Ltd Vehicle impact structures
US9394005B1 (en) 2015-02-12 2016-07-19 Autoliv Asp, Inc. Foot well intrusion deflection systems and related methods and apparatus
US11812870B2 (en) 2021-02-10 2023-11-14 Steelcase Inc. Body support structure

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US3881742A (en) * 1973-10-05 1975-05-06 Gen Motors Corp Motor vehicle energy-absorbing forward structure
JPH02212280A (ja) * 1989-02-14 1990-08-23 Mazda Motor Corp 自動車の下部車体構造
SK249692A3 (en) 1992-08-13 1994-08-10 Milan Bursik Method and equipment for more effective utilization of deformation zone of car body
JPH07267148A (ja) * 1994-03-29 1995-10-17 Toyota Motor Corp 自動車の下部車体構造
DE19639565C1 (de) * 1996-09-26 1998-01-22 Daimler Benz Ag Kraftfahrzeug mit einer Karosserietragstuktur
JPH10226363A (ja) * 1997-02-14 1998-08-25 Mitsubishi Motors Corp 自動車のサイドストラクチャ構造
DE19835705A1 (de) * 1998-08-07 2000-02-10 Bayerische Motoren Werke Ag Karosserie für ein Fahrzeug
DE29923253U1 (de) * 1999-04-16 2000-06-15 DaimlerChrysler AG, 70567 Stuttgart Tragstruktur für Kraftwagen
DE10102212A1 (de) * 2001-01-19 2002-08-01 Bayerische Motoren Werke Ag Radstützteil für ein Fahrzeug
JP3765238B2 (ja) * 2001-02-27 2006-04-12 日産自動車株式会社 車体前部構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004071851A1 *

Also Published As

Publication number Publication date
US20060244287A1 (en) 2006-11-02
WO2004071851A1 (fr) 2004-08-26
DE10305910B4 (de) 2006-12-28
JP2006513900A (ja) 2006-04-27
US7441829B2 (en) 2008-10-28
DE10305910A1 (de) 2004-09-02

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