DE102006000502A1 - Deformation structure for motor vehicles for protection of passengers or pedestrians in case of accident, has connecting element connects outer and inner parts and predetermined breaking point is provided within complete interconnection - Google Patents
Deformation structure for motor vehicles for protection of passengers or pedestrians in case of accident, has connecting element connects outer and inner parts and predetermined breaking point is provided within complete interconnection Download PDFInfo
- Publication number
- DE102006000502A1 DE102006000502A1 DE200610000502 DE102006000502A DE102006000502A1 DE 102006000502 A1 DE102006000502 A1 DE 102006000502A1 DE 200610000502 DE200610000502 DE 200610000502 DE 102006000502 A DE102006000502 A DE 102006000502A DE 102006000502 A1 DE102006000502 A1 DE 102006000502A1
- Authority
- DE
- Germany
- Prior art keywords
- structure according
- deformation structure
- connecting elements
- predetermined breaking
- deformation
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Deformationsstrukturen von Kraftfahrzeugen zum Schutz von Insassen oder Passanten im Falle eines Unfalles müssen mehrere, teilweise gegensätzliche Anforderungen erfüllen. Zunächst müssen sie bei einer Belastung den Schaden am menschlichen Organismus möglichst gering halten, d.h. sie müssen eine Antwort in Form einer Kraft-Verschiebungs-Charakterisik aufweisen, die möglichst verträglich für kritische Körperteile ist, beispielsweise für den Kopf. Hierbei spielt nicht nur die Höhe der Kraft, sondern auch die Verweildauer eine entscheidende Rolle. So ist der HIC (Head Injury Criteria) ein Kennwert, der die Belastung für den Kopf aus medizinischer Sicht quantifiziert. Weiterhin sollen sollen diese Deformationsstrukturen möglichst geringen Bauraum beanspruchen, um die Aerodynamik-, Innenraumgröße-, Design- und Packageziele des Fahrzeugs zu ermöglichen. Zuletzt müssen sie bestimmte Steifigkeitsziele erreichen. Neben der dynamischen Steifigkeit, die für die Fahrzeugakustik und den Schwingungskomfort unverzichtbar ist, bestehen Anforderung an die statische Steifigkeit, um im Gebrauch auftretende Belastungen wie z.B. ein Abstützen zu ermöglich (erforderliche Beulsteifigkeit einer Motorhaube, etc.).deformation structures of motor vehicles for the protection of passengers or passers-by in the event of Accident must several, partly opposing Meet requirements. First do you have to If possible, damage to the human organism keep low, i. You need to have a response in the form of a force-displacement characteristic, the possible compatible for critical Body Parts is, for example for the Head. Not only the amount of power plays here, but also the length of stay is crucial. So is the HIC (Head Injury Criteria) a characteristic value, which is the burden on the head quantified from a medical perspective. Furthermore, should these deformation structures preferably take up little space to achieve the aerodynamics, interior size, design and package goals allow the vehicle. Last need they reach certain rigidity goals. In addition to the dynamic Stiffness for vehicle acoustics and vibration comfort are indispensable, persist static stiffness requirement in order to use occurring loads such. to allow a support (required Beulsteifigkeit a hood, etc.).
Solche Deformationsstrukturen werden außen am Fahrzeug (Motorhaube, Kotflügel, A-Säule außen, etc. ) und im Innenraum (Dachhimmel, A-Säulenverkleidung, etc.) benötigt.Such Deformation structures are on the outside of the vehicle (bonnet, Fender, A pillar outside, etc. ) and in the interior (headliner, A-pillar trim, etc.) needed.
Stand der TechnikState of the art
HIC
(Head Injury Criteria): Der HIC berücksichtigt zur Quantifizierung
der Belastung des menschlichen Kopfes nicht nur die Höhe der Kraft (Beschleunigung,
da Masse des Kopfes als konstant angenommen wird), sondern auch
die Verweildauer der Belastung. Medizinsche Untersuchungen haben ergeben,
dass kurze Belastungsspitzen besser ertragen werden, als längere, vergleichsweise
niedrigere Belastungen. In zahlreiche Untersuchungen ist der ideale
Beschleunigungsverlauf über
der Zeit in Abhängigkeit
vom angestrebten max. HIC und verfügbaren Deformationsweg hergeleitet
worden.
Deformationsstrukturen:
Insbesondere von Motorhauben sind viele Konstruktionsvarianten entwickelt
worden, die im Falle eines Unfalls möglichst geringe HIC-Werte bei
den beteiligten Passanten hervorrufen sollen. Dabei gibt es eine
Vielzahl von Konzepten, die aus einem Außenblech und einem Innenblech
bestehen, wobei die Verbindung mit Deformationselementen realisiert
ist. Beispiele sind
Bewertung:
Keines dieser Konzepte ist gleichermaßen HIC-, bauraum- und steifigkeitsoptimal. Insbesondere
bei
Aufgabe der ErfindungObject of the invention
Die
Aufgabe der vorliegenden Erfindung besteht in der Entwicklung einer
Deformationsstruktur, die optimale HIC-Werte bei gegebenem Bauraum
ermöglicht.
D.h. der Wirkungsgrad aus HIC-Sicht der Struktur soll optimal sein
(vgl.
Beispielexample
Lösung: Die
Aufgabe wird erfinderisch mit einer Struktur gemäß Anspruch 1 gelöst.
- 1.
einem Außenblech
(
1 ), auf das der Kopf aufschlägt, - 2. einem Innenblech (
2 ), das einem Abstand zum Außenblech aufweist und nicht notwendigerweise geschlossen flächig ausgeführt ist und - 3. mindestens einem Verbindungselemente (
3 ), das Außen- und Innenblech miteinander verbinden.6 zeigt exemplarisch ein Verbindungselement.
- 1. an outer panel (
1 ), on which the head hits, - 2. an inner panel (
2 ), which has a distance from the outer panel and is not necessarily designed closed flat and - 3. at least one connecting element (
3 ), connect the outer and inner panels together.6 shows an example of a connecting element.
Der
Verbund weist mindestens eine Sollbruchstelle (
Die
Bauteile können
allen festen Werkstoffen wie beispielsweise aus Metallen oder Kunststoffen bestehen
oder aus Kombinationen dieser Werkstoffe. Schäume mit bestimmter Festigkeit
sind ebenso möglich.
Die Verbindung (
Die Sollbruchstelle kann am Außenblech, Innenblech oder an den Verbindungselementen realisiert sein. Die Verbindungstechnik zwischen den Komponenten kann als Sollbruchstelle dienen, wenn sie gezielt ausgelegt ist, um den idealen Beschleunigungsverlauf zu erzeugen.The Breaking point can be on the outer panel, Inner panel or be realized on the connecting elements. The Connection technology between the components can serve as a predetermined breaking point serve, if designed specifically, for the ideal acceleration to create.
Beschreibung möglicher Varianten:Description of possible variants:
- 1. Verbindungselemente1. connecting elements
- – Der Querschnitt der Verbindungselemente kann voll- oder hohlprofilförmig sein, wobei 3, 4, 5, 6, ... unendlich (= rund) Eckformen möglich sind. Ebenso können offene Formen wie U, L, W, ... Profile umgesetzt werden.- Of the Cross section of the connecting elements can be full or hollow profile-shaped, where 3, 4, 5, 6, ... infinite (= round) corner shapes are possible. Likewise open forms such as U, L, W, ... profiles are implemented.
-
– In
Längsrichtung
können
die Elemente grade, geknickt oder gebogen mit beliebiger Anzahl
von Knickstellen bzw. Wendepunkten sein. Je nach Ausführung der
Sollbruchstelle kann eine Schrägstellung
erforderlich sein, um eine erforderliche Kraftkomponente zu erzeugen.
Beispielsweise erfordert die Sollbruchstelle in
4 bis6 eine Kraftkomponente tangential zum Außenblech (1 ), die durch die Schrägstellung, d.h. einen Winkel von ungleich 90° zur Blechoberfläche erzeugt wird.- In the longitudinal direction, the elements may be grade, kinked or bent with any number of kinks or inflection points. Depending on the design of the predetermined breaking point, an inclination may be required to produce a required force component. For example, the predetermined breaking point in4 to6 a force component tangential to the outer panel (1 ), which is generated by the inclination, ie an angle of not equal to 90 ° to the sheet surface. - – Die Elemente können Längs- und Quersicken aufweisen.- The Elements can Along- and have cross beads.
- – Die Verbindungselemente können in das Innenteil integriert sein. (siehe Ausführungsbeispiel)- The Connecting elements can be integrated into the inner part. (see embodiment)
- 2. Anordnung der Verbindungselemente2. Arrangement of the connecting elements
- – Die Verbindungselemente können zufällig angeordnet sein.- The Connecting elements can fortuitously be arranged.
- – Sie können sternförmig mit unterschiedlicher Anzahl von Strahlen (2, 3, 4, ...) positioniert sein.- She can star shape positioned with different number of beams (2, 3, 4, ...) be.
- – Dreiecks-, Vierecks, Fünfecks-, Sechseckmuster oder weitere Mehrecksmuster können gebildet werden.- Triangle, Quadrilaterals, pentagonal, Hexagon patterns or other polygonal patterns can be formed.
- – Es können gezielt Bereiche mit Verbindungselementen verstärkt werden.- It can targeted areas are reinforced with fasteners.
- Beispielsweise können bei Anwendung bei einer Motorhaube die bei herkömmlicher Bauweise eingesetzten Strebenmuster mit Ansammlungen von Verbindungselementen gebildet werden und so gewichtsoptimal bestimme Gesamtsteifigkeitsanforderungen erfüllt werden. Diagonalmuster würden beispielsweise die Torsionssteifigkeit der Haube erhöhen.For example, you can when used in a bonnet used in conventional construction Strut pattern formed with accumulations of fasteners and thus optimal weight determining total stiffness requirements Fulfills become. Diagonal patterns would For example, increase the torsional stiffness of the hood.
- 3. Sollbruchstellen3. Predetermined breaking points
- – Speziell dimensionierte Klebung, Schweißung oder Lötung. Stanzung, Vernietung oder Verschraubung, wobei Nieten bzw. Schrauben als abzuscherende Sollbruchelemente dienen.- Special dimensioned gluing, welding or Soldering. Punching, riveting or screwing, with rivets or screws serve as abzuscherende predetermined breaking elements.
- – Sollbruchstelle integriert in Außenblech- breaking point integrated in outer panel
- – Sollbruchstelle integriert in Innenblech- breaking point integrated in inner sheet
- – Sollbruchstelle integriert in Verbindungselement, wobei sie an beliebigen Orten, beispielsweise am Innenblech, Außenblech oder in der Mitte des Elementes, umgesetzt werden kann.- breaking point integrated in connecting element, where they can be placed anywhere, For example, on the inner panel, outer panel or in the middle of the Elementes, can be implemented.
-
– Sollbruchstelle
auf Scherbelastung,
3 bis11 und13 .- breaking point to shear load,3 to11 and13 , -
– Sollbruchstelle
auf Zugbelastung,
12 .- predetermined breaking point to tensile load,12 , - – Verschieden starke Kerbungen.- different strong notches.
- – Symmetrische oder nichtsymmetrische Anordnung- Symmetrical or non-symmetrical arrangement
Die Varianten können miteinander kombiniert werden.The Variants can be combined with each other.
Ausführungsbeispiel:
Die Verbindungselemente können
im Innenblech integriert sein (
- 11
- nicht notwendigerweise durchgängig flächigen AußenteilNot necessarily consistently flat outer part
- 22
- nicht notwendigerweise durchgängig flächigen InnenteilNot necessarily consistently flat inner part
- 33
- Verbindungselementconnecting element
- 44
- SollbruchstelleBreaking point
- 55
- Verbindungsstellejunction
- 66
- Innenblech mit integrierten Verbindungselementeninner panel with integrated connecting elements
Claims (25)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610000502 DE102006000502A1 (en) | 2006-04-30 | 2006-04-30 | Deformation structure for motor vehicles for protection of passengers or pedestrians in case of accident, has connecting element connects outer and inner parts and predetermined breaking point is provided within complete interconnection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610000502 DE102006000502A1 (en) | 2006-04-30 | 2006-04-30 | Deformation structure for motor vehicles for protection of passengers or pedestrians in case of accident, has connecting element connects outer and inner parts and predetermined breaking point is provided within complete interconnection |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006000502A1 true DE102006000502A1 (en) | 2008-04-17 |
Family
ID=39184689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610000502 Withdrawn DE102006000502A1 (en) | 2006-04-30 | 2006-04-30 | Deformation structure for motor vehicles for protection of passengers or pedestrians in case of accident, has connecting element connects outer and inner parts and predetermined breaking point is provided within complete interconnection |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006000502A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009020087A1 (en) * | 2009-05-06 | 2010-11-11 | Volkswagen Ag | Front flap for motor vehicles |
US8313129B2 (en) | 2009-12-11 | 2012-11-20 | Peguform Gmbh | Energy absorber |
EP2598381A1 (en) * | 2010-07-27 | 2013-06-05 | Mahindra & Mahindra Ltd. | Vehicle bonnet structure for pedestrian protection |
WO2013153335A1 (en) * | 2012-04-12 | 2013-10-17 | Renault S.A.S. | Motor vehicle comprising a means for reinforcing a front bonnet |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2304147A1 (en) * | 1972-01-31 | 1973-08-09 | Ernst Baumann | SHOCK ABSORBERS IN PARTICULAR FOR GUIDE RAIL ARRANGEMENTS |
DE2441557A1 (en) * | 1974-08-30 | 1976-03-11 | Messerschmitt Boelkow Blohm | Impact absorbing car bumper - with collapsible mounting for elastic shock absorber of replaceable honeycomb material |
DE2614041A1 (en) * | 1976-04-01 | 1977-10-06 | Petri Ag | ENERGY ABSORPTION ELEMENT |
DE4240826A1 (en) * | 1992-03-31 | 1993-10-07 | Porsche Ag | Bumpers for vehicles, in particular passenger cars |
DE29602072U1 (en) * | 1995-06-08 | 1996-04-04 | Reiche Gmbh & Co Kg Automotive | Device for absorbing impact energy and for suspending a bumper on a vehicle |
DE69505601T2 (en) * | 1994-06-14 | 1999-05-06 | Ecia Equip Composants Ind Auto | Perfected energy damper for motor vehicles |
DE19947245A1 (en) * | 1998-10-01 | 2000-04-06 | Sai Automotive Allibert Ind Na | Shock absorbent appliance has base plate on which stand hollow conical shock absorbent elements |
DE10104334A1 (en) * | 2001-02-01 | 2002-08-22 | Karmann Gmbh W | Motor vehicle with a hood |
DE20206842U1 (en) * | 2002-04-30 | 2002-08-29 | Nicol Klaus | Damping element for mechanical shocks and arrangement for producing such a damping element |
DE69710341T2 (en) * | 1996-08-14 | 2002-09-05 | Cellbond Composites Ltd | ENERGY ABSORBING AUXILIARY STRUCTURE |
DE69905388T2 (en) * | 1998-11-21 | 2004-02-05 | Cellbond Ltd., Huntingdon | ENERGY ABSORBING STRUCTURE |
DE102004061303A1 (en) * | 2003-12-25 | 2005-08-04 | Toyota Jidosha Kabushiki Kaisha, Toyota | Hood for motor vehicle, has adjacent cone type projections mutually joined by beads provided at inner panel between projections provided at inner panel at equal intervals |
DE102004002820A1 (en) * | 2004-01-20 | 2005-08-11 | Adam Opel Ag | Vehicle body part with state change for pedestrian protection |
DE102004036929A1 (en) * | 2004-07-29 | 2006-03-23 | Zf Friedrichshafen Ag | Impact damper arrangement |
DE102004048504A1 (en) * | 2004-10-05 | 2006-04-13 | Rehau Ag + Co | Bodywork element comprises an absorber body which serves for dissipation of impact energy and consists of a plurality of plastic buckling elements with support walls |
DE102005005107A1 (en) * | 2005-02-04 | 2006-08-17 | Audi Ag | deformation element |
-
2006
- 2006-04-30 DE DE200610000502 patent/DE102006000502A1/en not_active Withdrawn
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2304147A1 (en) * | 1972-01-31 | 1973-08-09 | Ernst Baumann | SHOCK ABSORBERS IN PARTICULAR FOR GUIDE RAIL ARRANGEMENTS |
DE2441557A1 (en) * | 1974-08-30 | 1976-03-11 | Messerschmitt Boelkow Blohm | Impact absorbing car bumper - with collapsible mounting for elastic shock absorber of replaceable honeycomb material |
DE2614041A1 (en) * | 1976-04-01 | 1977-10-06 | Petri Ag | ENERGY ABSORPTION ELEMENT |
DE4240826A1 (en) * | 1992-03-31 | 1993-10-07 | Porsche Ag | Bumpers for vehicles, in particular passenger cars |
DE69505601T2 (en) * | 1994-06-14 | 1999-05-06 | Ecia Equip Composants Ind Auto | Perfected energy damper for motor vehicles |
DE29602072U1 (en) * | 1995-06-08 | 1996-04-04 | Reiche Gmbh & Co Kg Automotive | Device for absorbing impact energy and for suspending a bumper on a vehicle |
DE69710341T2 (en) * | 1996-08-14 | 2002-09-05 | Cellbond Composites Ltd | ENERGY ABSORBING AUXILIARY STRUCTURE |
DE19947245A1 (en) * | 1998-10-01 | 2000-04-06 | Sai Automotive Allibert Ind Na | Shock absorbent appliance has base plate on which stand hollow conical shock absorbent elements |
DE69905388T2 (en) * | 1998-11-21 | 2004-02-05 | Cellbond Ltd., Huntingdon | ENERGY ABSORBING STRUCTURE |
DE10104334A1 (en) * | 2001-02-01 | 2002-08-22 | Karmann Gmbh W | Motor vehicle with a hood |
DE20206842U1 (en) * | 2002-04-30 | 2002-08-29 | Nicol Klaus | Damping element for mechanical shocks and arrangement for producing such a damping element |
DE102004061303A1 (en) * | 2003-12-25 | 2005-08-04 | Toyota Jidosha Kabushiki Kaisha, Toyota | Hood for motor vehicle, has adjacent cone type projections mutually joined by beads provided at inner panel between projections provided at inner panel at equal intervals |
DE102004002820A1 (en) * | 2004-01-20 | 2005-08-11 | Adam Opel Ag | Vehicle body part with state change for pedestrian protection |
DE102004036929A1 (en) * | 2004-07-29 | 2006-03-23 | Zf Friedrichshafen Ag | Impact damper arrangement |
DE102004048504A1 (en) * | 2004-10-05 | 2006-04-13 | Rehau Ag + Co | Bodywork element comprises an absorber body which serves for dissipation of impact energy and consists of a plurality of plastic buckling elements with support walls |
DE102005005107A1 (en) * | 2005-02-04 | 2006-08-17 | Audi Ag | deformation element |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009020087A1 (en) * | 2009-05-06 | 2010-11-11 | Volkswagen Ag | Front flap for motor vehicles |
US8313129B2 (en) | 2009-12-11 | 2012-11-20 | Peguform Gmbh | Energy absorber |
EP2598381A1 (en) * | 2010-07-27 | 2013-06-05 | Mahindra & Mahindra Ltd. | Vehicle bonnet structure for pedestrian protection |
EP2598381A4 (en) * | 2010-07-27 | 2014-01-08 | Mahindra & Mahindra Ltd | Vehicle bonnet structure for pedestrian protection |
WO2013153335A1 (en) * | 2012-04-12 | 2013-10-17 | Renault S.A.S. | Motor vehicle comprising a means for reinforcing a front bonnet |
FR2989348A1 (en) * | 2012-04-12 | 2013-10-18 | Renault Sa | MOTOR VEHICLE COMPRISING A MEANS FOR REINFORCING A FRONT HOOD |
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