DE102009015355A1 - Base structure for motor vehicle, is made of fiber composite material, and change in cross-section is formed, such that crash behavior of base structure is controlled - Google Patents

Base structure for motor vehicle, is made of fiber composite material, and change in cross-section is formed, such that crash behavior of base structure is controlled Download PDF

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Publication number
DE102009015355A1
DE102009015355A1 DE102009015355A DE102009015355A DE102009015355A1 DE 102009015355 A1 DE102009015355 A1 DE 102009015355A1 DE 102009015355 A DE102009015355 A DE 102009015355A DE 102009015355 A DE102009015355 A DE 102009015355A DE 102009015355 A1 DE102009015355 A1 DE 102009015355A1
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DE
Germany
Prior art keywords
cross
base structure
change
section
composite material
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DE102009015355A
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German (de)
Inventor
Andreas Winkler
Jan Lohmann
Karl Dr. Durst
Markus Volkmer
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Audi AG
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Audi AG
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Publication date
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Priority to DE102009015355A priority Critical patent/DE102009015355A1/en
Publication of DE102009015355A1 publication Critical patent/DE102009015355A1/en
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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
    • B62D25/20—Floors or bottom sub-units
    • 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
    • B62D21/157—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 for side impacts
    • 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

Abstract

The base structure (1) is made of fiber composite material. A change in cross-section (6) is formed, such that the crash behavior of the base structure is controlled. A seat cross beam (5) is provided, which has a vertical section (7) and a horizontal section (8), where both the sections are connected together by a radius (9). The change in cross-section runs partially inwards to the radius.

Description

Die Erfindung betrifft eine Bodenstruktur für ein Kraftfahrzeug, welche zumindest zu ihrem überwiegenden Teil aus einem Faserverbundwerkstoff besteht.The The invention relates to a floor structure for a motor vehicle, which at least for the most part consist of one Fiber composite material exists.

Eine gattungsgemäße Bodenstruktur ist aus der DE 10 2005 024 265 A1 bekannt. Problematisch bei der Verwendung von Faserverbundwerkstoffen für derartige Bauteile ist jedoch die Tatsache, dass sich dieses Material bei Überbelastung, wie beispielsweise im Crashfall, nur gering verformt und dann spröde versagt. Dieses Verhalten führt jedoch nicht nur zu einer verhältnismäßig großen Beschädigung des Kraftfahrzeugs, sondern kann auch für sich in dem Fahrzeug befindliche Personen eine Verletzungsgefahr darstellen.A generic soil structure is from the DE 10 2005 024 265 A1 known. The problem with the use of fiber composites for such components, however, is the fact that this material under overload, such as in the event of a crash, only slightly deformed and then brittle failure. However, this behavior not only leads to a relatively large damage to the motor vehicle, but can also pose a risk of injury to persons in the vehicle.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Bodenstruktur für ein Kraftfahrzeug zu schaffen, welche im Crashfall, insbesondere bei einem Seitenaufprall, auf die gewünschte Art und Weise verformt.It is therefore an object of the present invention, a soil structure for a motor vehicle, which in the event of a crash, especially in the case of a side impact, to the desired Fashion deformed.

Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention This object is achieved by the features mentioned in claim 1.

Durch die erfindungsgemäße Querschnittsänderung der Bodenstruktur kann das Crashverhalten der Bodenstruktur gesteuert werden und es ist sichergestellt, dass es zu einem Verformen der Bodenstruktur an der gewünschten Stelle kommt, so dass sich diese im Crashfall auf kontrollierte Art und Weise verformt und somit ein reproduzierbares Verhalten derselben sichergestellt ist.By the cross-section change according to the invention the soil structure can control the crash behavior of the soil structure and it is ensured that it is deforming the Soil structure comes in the desired location, so that deformed in a controlled manner in a crash and thus a reproducible behavior of the same is ensured.

Um die gewünschte Wirkung, also die kontrollierte Verformung der Bodenstruktur, insbesondere bei einem Seitenaufprall zu erreichen, kann in einer vorteilhaften Ausgestaltung der Erfindung vorgesehen sein, dass die Querschnittsänderung an einem einteilig mit der Bodenstruktur ausgebildeten Sitzquerträger angeordnet ist.Around the desired effect, ie the controlled deformation the soil structure, especially in the event of a side impact, can be provided in an advantageous embodiment of the invention be that the cross-sectional change on a one-piece arranged with the floor structure seat cross member is.

Die beste Wirkung durch die Querschnittsänderung ergibt sich in diesem Fall, wenn der Sitzquerträger wenigstens einen vertikalen Abschnitt und wenigstens einen horizontalen Abschnitt aufweist, wobei die beiden Abschnitte über einen Radius mitein ander verbunden sind, und wobei die Querschnittsänderung zumindest teilweise innerhalb des Radius verläuft.The best effect due to the change in cross section results in this case, if the seat cross member at least one vertical section and at least one horizontal section having, wherein the two sections over a radius mitein connected to each other, and wherein the cross-sectional change at least partially within the radius.

Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen. Nachfolgend sind Ausführungsbeispiele der Erfindung anhand der Zeichnung prinzipmäßig dargestellt.Further yield advantageous embodiments and refinements of the invention from the remaining subclaims. Below are Embodiments of the invention with reference to the drawing shown in principle.

Es zeigt:It shows:

1 eine perspektivische Ansicht einer erfindungsgemäßen Bodenstruktur für ein Kraftfahrzeug; 1 a perspective view of a floor structure according to the invention for a motor vehicle;

2 eine vergrößerte Darstellung einer ersten Ausführungsform der Querschnittsänderung nach der Linie II aus 1; 2 an enlarged view of a first embodiment of the change in cross section along the line II 1 ;

3 einen Schnitt nach der Linie III-III aus 1 mit einer zweiten Ausführungsform der Querschnittsänderung; 3 a section along the line III-III 1 with a second embodiment of the cross-sectional change;

4 eine dritte Ausführungsform der Querschnittsänderung; und 4 a third embodiment of the cross-sectional change; and

5 eine vierte Ausführungsform der Querschnittsänderung. 5 A fourth embodiment of the cross-sectional change.

Eine aus einem Faserverbundwerkstoff bzw. einem faserverstärkten Kunststoff, wie beispielsweise CFK, GFK oder dergleichen bestehende Bodenstruktur 1 für ein Kraftfahrzeug weist in an sich bekannter Weise einen mittleren Tunnelbereich 2 und zwei einteilig mit dem Tunnelbereich 2 ausgebildete Seitenteile 3 und 4 auf. Die Seitenteile 3 und 4 weisen jeweilige Sitzquerträger 5 auf. Auch die Sitzquerträger 5 sind einteilig mit dem Rest der Bodenstruktur 1 ausgebildet und bestehen aus einem Faserverbundwerkstoff.A consisting of a fiber composite material or a fiber-reinforced plastic, such as CFRP, GRP or the like soil structure 1 for a motor vehicle has a middle tunnel area in a conventional manner 2 and two in one piece with the tunnel area 2 trained side panels 3 and 4 on. The side parts 3 and 4 have respective seat cross member 5 on. Also the seat cross member 5 are integral with the rest of the soil structure 1 formed and made of a fiber composite material.

Um im Falle eines Seitenaufpralls des die Bodenstruktur 1 aufweisenden Kraftfahrzeugs ein kontrolliertes Verformen der Bodenstruktur 1 zu erzielen, weist die Bodenstruktur 1 eine Querschnittsänderung 6 auf, die sich im vorliegenden Fall an dem Sitzquerträger 5 befindet. Die Bodenstruktur 1 könnte auch in anderen Bereichen mit Querschnittsänderungen 6 versehen sein, um eine Anpassung des Crashverhaltens der Bodenstruktur 1 an die jeweiligen Erfordernisse zu erreichen. Die Querschnittsänderungen 6 können beispielsweise als Querschnittsschwächungen ausgebildet sein.In case of a side impact of the soil structure 1 a controlled deformation of the soil structure 1 to achieve, indicates the soil structure 1 a cross section change 6 in the present case on the seat cross member 5 located. The soil structure 1 could also be in other areas with cross-sectional changes 6 Be provided to adapt the crash behavior of the soil structure 1 to achieve the respective requirements. The cross-sectional changes 6 For example, they may be formed as cross-sectional weakenings.

Wie in 2 zu erkennen ist, weist der Sitzquerträger 5 zwei vertikale Abschnitte 7 und einen horizontalen Abschnitt 8 auf. Der horizontale Abschnitt 8 ist mit den beiden vertikalen Abschnitten 7 über jeweilige Radien 9 verbunden, d. h. der Übergang von einem der vertikalen Abschnitte 7 zu dem horizontalen Abschnitt 8 erfolgt jeweils über einen Radius 9. Wie ebenfalls in 2 zu erkennen ist, verläuft die Querschnittsänderung 6 zumindest teilweise innerhalb des Radius 9, um so eine besonders große Wirkung zu erzielen, die zu einem kontrollierten Crashverhalten der Bodenstruktur 1 führt. In der Ausführungsform von 2 ist die Querschnittsänderung 6 als Ausnehmung 6a und insbesondere als im Wesentlichen kreisrunde Durchgangsbohrung ausgebildet.As in 2 can be seen, the seat cross member has 5 two vertical sections 7 and a horizontal section 8th on. The horizontal section 8th is with the two vertical sections 7 about respective radii 9 connected, ie the transition from one of the vertical sections 7 to the horizontal section 8th takes place over a radius 9 , Like also in 2 can be seen, the cross-sectional change runs 6 at least partially within the radius 9 in order to achieve a particularly large effect, leading to a controlled crash behavior of the soil structure 1 leads. In the embodiment of 2 is the cross section change 6 as a recess 6a and in particular as a substantially circular through hole ausgebil det.

Demgegenüber ist die Querschnittsänderung 6 bei der Ausführungsform von 3 als Sicke 6b, bei der Ausführungsform gemäß 4 als Knick 6c und bei der Ausführungsform von 5 als Aussparung 6d einzelner Lagen des Faserverbundwerkstoffs ausgebildet. Selbstverständlich sind an ein und derselben Bodenstruktur 1 auch Kombinationen unterschiedlicher Querschnittsänderungen 6 denkbar.In contrast, the change in cross section 6 in the embodiment of 3 as a bead 6b , in the embodiment according to 4 as a kink 6c and in the embodiment of 5 as a recess 6d formed individual layers of the fiber composite material. Of course, on one and the same soil structure 1 also combinations of different cross-sectional changes 6 conceivable.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - DE 102005024265 A1 [0002] - DE 102005024265 A1 [0002]

Claims (8)

Bodenstruktur für ein Kraftfahrzeug, welche zumindest zu ihrem überwiegenden Teil aus einem Faserverbundwerkstoff besteht, gekennzeichnet durch eine Querschnittsänderung (6), welche derart ausgebildet ist, dass mit derselben das Crashverhalten der Bodenstruktur (1) steuerbar ist.Floor structure for a motor vehicle, which consists at least for the most part of a fiber composite material, characterized by a cross-sectional change ( 6 ), which is designed such that with it the crash behavior of the soil structure ( 1 ) is controllable. Bodenstruktur nach Anspruch 1, dadurch gekennzeichnet, dass die Querschnittsänderung (6) an einem einteilig mit der Bodenstruktur (1) ausgebildeten Sitzquerträger (5) angeordnet ist.Soil structure according to claim 1, characterized in that the cross-sectional change ( 6 ) on one piece with the soil structure ( 1 ) formed seat crossmember ( 5 ) is arranged. Bodenstruktur nach Anspruch 2, dadurch gekennzeichnet, dass der Sitzquerträger (5) wenigstens einen vertikalen Abschnitt (7) und wenigstens einen horizontalen Abschnitt (8) aufweist, wobei die beiden Abschnitte (7, 8) über einen Radius (9) miteinander verbunden sind, und wobei die Querschnittsänderung (6) zumindest teilweise innerhalb des Radius (9) verläuft.Floor structure according to claim 2, characterized in that the seat cross member ( 5 ) at least one vertical section ( 7 ) and at least one horizontal section ( 8th ), the two sections ( 7 . 8th ) over a radius ( 9 ), and wherein the cross-sectional change ( 6 ) at least partially within the radius ( 9 ) runs. Bodenstruktur nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Querschnittsänderung (6) als Ausnehmung (6a) ausgebildet ist.Floor structure according to claim 1, 2 or 3, characterized in that the cross-sectional change ( 6 ) as a recess ( 6a ) is trained. Bodenstruktur nach Anspruch 4, dadurch gekennzeichnet, dass die Ausnehmung (6a) als im Wesentlichen kreisrunde Durchgangsbohrung ausgebildet istFloor structure according to claim 4, characterized in that the recess ( 6a ) is formed as a substantially circular through hole Bodenstruktur nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Querschnittsänderung (6) als Sicke (6b) ausgebildet ist.Floor structure according to claim 1, 2 or 3, characterized in that the cross-sectional change ( 6 ) as a bead ( 6b ) is trained. Bodenstruktur nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Querschnittsänderung (6) als Knick (6c) ausgebildet ist.Floor structure according to claim 1, 2 or 3, characterized in that the cross-sectional change ( 6 ) as a kink ( 6c ) is trained. Bodenstruktur nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Querschnittsänderung (6) als Aussparung (6d) einzelner Lagen des Faserverbundwerkstoffs ausgebildet ist.Floor structure according to claim 1, 2 or 3, characterized in that the cross-sectional change ( 6 ) as a recess ( 6d ) of individual layers of the fiber composite material is formed.
DE102009015355A 2009-03-27 2009-03-27 Base structure for motor vehicle, is made of fiber composite material, and change in cross-section is formed, such that crash behavior of base structure is controlled Withdrawn DE102009015355A1 (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045997A1 (en) * 2010-05-10 2011-11-10 Volkswagen Ag Electrically operated motor vehicle has central tunnel, in which electric battery is arranged in battery case, where battery case and central tunnel are strengthened for protection of electric battery against forces arising from side impact
WO2015014620A3 (en) * 2013-07-29 2015-08-20 Bayerische Motoren Werke Aktiengesellschaft Body of a vehicle having a body component made of fiber-reinforced plastic
WO2016001511A1 (en) * 2014-07-04 2016-01-07 Peugeot Citroen Automobiles Sa Improved transverse reinforcing brace
WO2016001509A1 (en) * 2014-07-04 2016-01-07 Peugeot Citroen Automobiles Sa Improved reinforcing transverse cross-member for lateral and frontal impacts
WO2016001510A1 (en) * 2014-07-04 2016-01-07 Peugeot Citroen Automobiles Sa Improved reinforcing transverse cross-member with programmed rupture
CN106660587A (en) * 2014-08-04 2017-05-10 标致雪铁龙集团 Floor with crossmember comprising a compressively deformable portion
US9834255B2 (en) * 2015-07-15 2017-12-05 Hyundai Motor Company Floor body for vehicle
DE202017103910U1 (en) * 2017-06-30 2018-10-02 Niesmann+Bischoff Gmbh Cab System
FR3096333A1 (en) * 2019-05-22 2020-11-27 Psa Automobiles Sa Front floor, fixing cross member for the front seat and vehicle comprising such elements
US11077812B2 (en) 2018-02-27 2021-08-03 GM Global Technology Operations LLC Composite energy-absorbing assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801960B1 (en) * 1968-10-09 1970-08-20 Opel Adam Ag Vehicle frame
DE10221583A1 (en) * 2002-05-15 2003-12-04 Webasto Vehicle Sys Int Gmbh Body part for use as a vehicle roof comprises a material composite with an outer shell arranged on a support and a deformation zone for absorbing kinetic energy
DE102005024265A1 (en) 2005-05-27 2006-12-14 Audi Ag Chassis base for a vehicle, e.g. a two-seater sports car, comprises a central tunnel for a chassis frame and two base parts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801960B1 (en) * 1968-10-09 1970-08-20 Opel Adam Ag Vehicle frame
DE10221583A1 (en) * 2002-05-15 2003-12-04 Webasto Vehicle Sys Int Gmbh Body part for use as a vehicle roof comprises a material composite with an outer shell arranged on a support and a deformation zone for absorbing kinetic energy
DE102005024265A1 (en) 2005-05-27 2006-12-14 Audi Ag Chassis base for a vehicle, e.g. a two-seater sports car, comprises a central tunnel for a chassis frame and two base parts

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045997A1 (en) * 2010-05-10 2011-11-10 Volkswagen Ag Electrically operated motor vehicle has central tunnel, in which electric battery is arranged in battery case, where battery case and central tunnel are strengthened for protection of electric battery against forces arising from side impact
WO2015014620A3 (en) * 2013-07-29 2015-08-20 Bayerische Motoren Werke Aktiengesellschaft Body of a vehicle having a body component made of fiber-reinforced plastic
FR3023250A1 (en) * 2014-07-04 2016-01-08 Peugeot Citroen Automobiles Sa IMPROVED TRANSVERSE CROSS STRAP WITH PROGRAM BREAK
WO2016001509A1 (en) * 2014-07-04 2016-01-07 Peugeot Citroen Automobiles Sa Improved reinforcing transverse cross-member for lateral and frontal impacts
WO2016001510A1 (en) * 2014-07-04 2016-01-07 Peugeot Citroen Automobiles Sa Improved reinforcing transverse cross-member with programmed rupture
FR3023249A1 (en) * 2014-07-04 2016-01-08 Peugeot Citroen Automobiles Sa IMPROVED CROSS-SECTIONAL CROSS STRAP
WO2016001511A1 (en) * 2014-07-04 2016-01-07 Peugeot Citroen Automobiles Sa Improved transverse reinforcing brace
FR3023251A1 (en) * 2014-07-04 2016-01-08 Peugeot Citroen Automobiles Sa IMPROVED CROSSROAD STRAP FOR SIDE SHOCK AND FRONT SHOCK
CN106660587A (en) * 2014-08-04 2017-05-10 标致雪铁龙集团 Floor with crossmember comprising a compressively deformable portion
CN106660587B (en) * 2014-08-04 2019-09-13 标致雪铁龙集团 With include compression can deformation part crossbeam bottom plate
US9834255B2 (en) * 2015-07-15 2017-12-05 Hyundai Motor Company Floor body for vehicle
DE202017103910U1 (en) * 2017-06-30 2018-10-02 Niesmann+Bischoff Gmbh Cab System
US11077812B2 (en) 2018-02-27 2021-08-03 GM Global Technology Operations LLC Composite energy-absorbing assembly
FR3096333A1 (en) * 2019-05-22 2020-11-27 Psa Automobiles Sa Front floor, fixing cross member for the front seat and vehicle comprising such elements

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