DE102009023364A1 - Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position - Google Patents

Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position Download PDF

Info

Publication number
DE102009023364A1
DE102009023364A1 DE200910023364 DE102009023364A DE102009023364A1 DE 102009023364 A1 DE102009023364 A1 DE 102009023364A1 DE 200910023364 DE200910023364 DE 200910023364 DE 102009023364 A DE102009023364 A DE 102009023364A DE 102009023364 A1 DE102009023364 A1 DE 102009023364A1
Authority
DE
Germany
Prior art keywords
bonnet
motor vehicle
front flap
installed position
impact area
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Withdrawn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
DE200910023364
Other languages
German (de)
Inventor
Cesar Muntada Roura
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Priority to DE200910023364 priority Critical patent/DE102009023364A1/en
Publication of DE102009023364A1 publication Critical patent/DE102009023364A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R21/38Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets

Abstract

The vehicle (5) has a front bonnet (7) and a pedestrian protection device activated during entire driving operation and deactivated during standstill of the vehicle. The device lifts the bonnet or a section of the bonnet. A portion of the bonnet located in a potential impact area is made of a material that changes shape of the bonnet while subjected to electrical current such that the bonnet bulges upward in an installed position. A front door liftable by the material deformation covers an entire upper side of the bonnet.

Description

Die Erfindung bezieht sich auf ein Kraftfahrzeug mit einer Frontklappe und einer Einrichtung zum Fußgängerschutz, welche die Frontklappe oder einen Abschnitt der Frontklappe anhebt.The The invention relates to a motor vehicle with a front flap and a pedestrian protection device, which raises the front door or a portion of the front door.

Einrichtungen zum Fußgängerschutz die darauf basieren, dass die Frontklappe oder ein Teil derselben angehoben wird, sind in den vielfältigsten Bauformen bekannt. Sie erfordern spezielle Vorrichtungen zum Anheben der Frontklappe und meist auch dafür geeignete, besondere Scharniere. Neben dem dafür notwendigen Bauraum sind die bekannten Einrichtungen sehr aufwändig und dadurch teuer.facilities for pedestrian protection based on the front flap or part of it are raised, are known in the most diverse designs. They require special devices for lifting the front door and mostly for that too suitable, special hinges. In addition to the necessary space are the known devices very expensive and therefore expensive.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, eine Einrichtung zum Fußgängerschutz zu schaffen, die sich kostengünstig umsetzen lässt, wenig Bauraum beansprucht und keine Kompromisse bei der Ausgestaltung anderer Bauteile bedingt.Of the The present invention is therefore based on the object, a Pedestrian protection device to create that cost-effectively can be implemented, takes up little space and no compromises in the design other components conditionally.

Die Aufgabe wird dadurch gelöst, dass zumindest ein Teilbereich der Frontklappe aus einem Material besteht, welches bei Beaufschlagung mit elektrischem Strom seine Form verändert, derart, dass es sich in Einbaulage nach oben wölbt. Diese Einrichtung erfordert keine mechanischen Bauteile zum Anheben der Frontklappe und den dafür notwendigen Platz. Scharniere, Verschlüsse und sonstige angrenzende Bauteile können ohne Rücksicht auf die Fußgängerschutzeinrichtung konzipiert werden. Es ist nur erforderlich, für die Frontklappe bzw. für einen Abschnitt der Frontklappe ein entsprechendes Material einzusetzen, Stromanschlüsse vorzusehen und diese über ein meist schon vorhandenes Steuergerät anzusteuern.The Task is solved by that at least a portion of the front flap of a material which, when subjected to electric current its Shape changed, such that it bulges upwards in the installed position. This device requires no mechanical components for lifting the front door and the necessary for this Space. Hinges, closures and other adjacent components may be without regard to the pedestrian protection device be conceived. It is only necessary for the front door or for a Section of the front flap to insert a corresponding material, power connectors to provide and this over to control a mostly already existing control unit.

Von Vorteil ist auch, dass das System reversibel ist. Insofern hat eine Fehlauslösung keine Reparaturkosten zur Folge.From Another advantage is that the system is reversible. In this respect, one has false triggering no repair costs.

Bevorzugt wird der durch die Materialverformung anhebbare Abschnitt der Frontklappe im Bereich nach oben vorstehender Motorteile und/oder Karosseriebauteile und/oder Federbeinaufnahmen des Kraftfahrzeuges angeordnet. Diese Überlegung basiert darauf, dass die meisten Bauteile im Motorraum einen ausreichend großen Abstand zur Frontklappe aufweisen und es nur sehr wenige Bauteile sind, die bis nahe an die Frontklappe heranreichen. Es ist dann ausreichend, wenn nur diejenigen Abschnitte der Frontklappe aus dem entsprechenden Material bestehen, die den kritischen Bereichen gegenüberliegen.Prefers becomes the liftable by the deformation of material section of the front door in the area upwardly projecting engine parts and / or body components and / or strut mountings of the motor vehicle. This consideration is based insist that most of the components in the engine compartment suffice huge Distance to the front flap and there are very few components, which come close to the front flap. It is then sufficient if only those sections of the front flap of the appropriate material exist that are opposite to the critical areas.

Natürlich kann der durch die Materialverformung anhebbare Abschnitt der Frontklappe annähernd die gesamte Oberseite der Frontklappe umfassen. Dadurch ergibt sich eine weitestgehend homogene Frontklappe; die Ausführung von Verbindungsstellen zwischen dem normalen Blech der Frontklappe und dem verformbaren Material entfallen.Of course you can the liftable by the deformation of material section of the front door nearly cover the entire top of the front door. This results a largely homogeneous front flap; the execution of Connection points between the normal sheet metal of the front flap and the deformable material omitted.

Als Material für den Verformungsbereich kann jedes Material eingesetzt werden, dessen Länge sich bei Beaufschlagung mit Strom vergrößert. Bevorzugt soll der Strom dabei nicht das Material erwärmen, sondern unmittelbar auf die Struktur des Materials einwirken.When Material for The deformation range can be used any material whose Length itself increased when energized. Preferably, the current should do not heat the material, but directly affect the structure of the material.

Da der Verformungsprozess unter Umständen nicht ausreichend schnell erfolgen kann, ist es gemäß einer weiteren Ausgestaltung der Erfindung besonders vorteilhaft, wenn die Einrichtung zum Fußgängerschutz während des gesamten Fahrbetriebs aktiviert und bei Stillstand des Kraftfahrzeuges deaktiviert ist.There the deformation process may not be fast enough it can be done according to one further embodiment of the invention particularly advantageous if the device for pedestrian protection while activated the entire driving and disabled at standstill of the motor vehicle is.

Eine Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigenA embodiment the invention is shown in the drawing. Show it

1 in perspektivischer Darstellung den vorderen, linken Abschnitt einer Kraftfahrzeugkarosserie, 1 in a perspective view the front, left portion of a motor vehicle body,

2 die Kraftfahrzeugkarosserie gemäß 1 bei aktivierter Einrichtung zum Fußgängerschutz und 2 the vehicle body according to 1 with activated pedestrian protection device and

3 den Schnitt III-III aus 2. 3 the section III-III 2 ,

Ein Kraftfahrzeug 5 mit einer Frontklappe 7 weist eine Einrichtung zum Fußgängerschutz auf, welche über einen nicht dargestellten Sensor ausgelöst wird.A motor vehicle 5 with a front flap 7 has a device for pedestrian protection, which is triggered by a sensor, not shown.

Die Einrichtung zum Fußgängerschutz besteht darin, dass ein Abschnitt 9 der Frontklappe 7 aus einem Material besteht, welches sich bei Beaufschlagung mit elektrischem Strom nach oben wölbt (2).The pedestrian protection device is that a section 9 the front flap 7 is made of a material that bulges when exposed to electric current ( 2 ).

Wie die Schnittdarstellung in 3 zeigt, vergrößert sich durch den nach oben gewölbten Abschnitt 9 der Frontklappe 7 der Abstand zu einem nahe an der Frontklappe 7 angeordneten Bauteil 11. Der Abstand des Bauteiles 11 zur Frontklappe 7 in der Ausgangslage ist durch einen Pfeil 13 gekennzeichnet, während der Abstand bei aktivierter Einrichtung zum Fußgängerschutz durch einen Pfeil 15 wiedergegeben ist.Like the sectional view in 3 shows enlarged by the upwardly curved portion 9 the front flap 7 the distance to a close to the front door 7 arranged component 11 , The distance of the component 11 to the front flap 7 in the starting position is indicated by an arrow 13 while the distance when the pedestrian protection device is activated is indicated by an arrow 15 is reproduced.

Claims (5)

Kraftfahrzeug mit einer Frontklappe und einer Einrichtung zum Fußgängerschutz, welche die Frontklappe oder einen Abschnitt der Frontklappe anhebt, dadurch gekennzeichnet, dass zumindest ein im möglichen Aufschlagbereich gelegener Teilbereich der Frontklappe (7) aus einem Material besteht, welches bei Beaufschlagung mit elektrischem Strom seine Form verändert, derart, dass es sich in Einbaulage nach oben wölbt.Motor vehicle with a front flap and a device for pedestrian protection, which raises the front flap or a portion of the front flap, characterized in that at least one in the possible impact area located partial area of the front flap ( 7 ) consists of a material which changes its shape when exposed to electric current, such that it bulges in the installed position upwards. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass der durch die Materialverformung anhebbare Abschnitt (9) der Frontklappe (7) im Bereich nach oben vorstehender Motorteile (11) und/oder Karosseriebauteile und/oder Federbeinaufnahmen des Kraftfahrzeuges angeordnet ist.Motor vehicle according to claim 1, characterized in that the liftable by the material deformation section ( 9 ) of the front flap ( 7 ) in the region of upwardly projecting engine parts ( 11 ) and / or body components and / or strut mountings of the motor vehicle is arranged. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass der durch die Materialverformung anhebbare Abschnitt der Frontklappe (7) annähernd die gesamte Oberseite der Frontklappe (7) umfasst.Motor vehicle according to claim 1, characterized in that the liftable by the deformation of material portion of the front door ( 7 ) approximately the entire top of the front door ( 7 ). Kraftfahrzeug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Einrichtung zum Fußgängerschutz während des gesamten Fahrbetriebs aktiviert und bei Stillstand des Kraftfahrzeuges deaktiviert ist.Motor vehicle according to one of claims 1 to 3, characterized in that the device for pedestrian protection while the entire driving operation activated and at standstill of the motor vehicle is disabled. Kraftfahrzeug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass als Material für den Verformungsbereich ein Memorymetall Verwendung findet.Motor vehicle according to one of claims 1 to 4, characterized in that as material for the deformation region a Memory metal is used.
DE200910023364 2009-05-29 2009-05-29 Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position Withdrawn DE102009023364A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200910023364 DE102009023364A1 (en) 2009-05-29 2009-05-29 Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910023364 DE102009023364A1 (en) 2009-05-29 2009-05-29 Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position

Publications (1)

Publication Number Publication Date
DE102009023364A1 true DE102009023364A1 (en) 2010-12-02

Family

ID=43028520

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200910023364 Withdrawn DE102009023364A1 (en) 2009-05-29 2009-05-29 Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position

Country Status (1)

Country Link
DE (1) DE102009023364A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022003987A1 (en) 2021-11-19 2023-05-25 Mercedes-Benz Group AG System and method for customizable exterior design surfaces of a vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255249A1 (en) * 2002-11-26 2004-06-17 Peguform Gmbh & Co. Kg I.Ins. Adjustment mechanism for vehicle outer cladding for protecting pedestrians, cyclists has traction element(s) joined to vehicle part and outer cladding, consisting at least partly of shape memory alloy
JP2005263037A (en) * 2004-03-18 2005-09-29 Denso Corp Pedestrian protecting device
DE102005025631A1 (en) * 2004-06-09 2006-01-05 GM Global Technology Operations, Inc., Detroit Hood assembly using active material based mechanisms
DE112005001912T5 (en) * 2004-08-06 2007-09-13 General Motors Corp., Detroit Hood lift mechanisms using active materials and methods of use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255249A1 (en) * 2002-11-26 2004-06-17 Peguform Gmbh & Co. Kg I.Ins. Adjustment mechanism for vehicle outer cladding for protecting pedestrians, cyclists has traction element(s) joined to vehicle part and outer cladding, consisting at least partly of shape memory alloy
JP2005263037A (en) * 2004-03-18 2005-09-29 Denso Corp Pedestrian protecting device
DE102005025631A1 (en) * 2004-06-09 2006-01-05 GM Global Technology Operations, Inc., Detroit Hood assembly using active material based mechanisms
DE112005001912T5 (en) * 2004-08-06 2007-09-13 General Motors Corp., Detroit Hood lift mechanisms using active materials and methods of use

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022003987A1 (en) 2021-11-19 2023-05-25 Mercedes-Benz Group AG System and method for customizable exterior design surfaces of a vehicle

Similar Documents

Publication Publication Date Title
DE102011083418A1 (en) motor vehicle
DE102019101728B4 (en) Structure for mounting an electrical device
DE102018123083A1 (en) ADJUSTABLE BODYBAR ASSEMBLY AND A VEHICLE
WO2022101465A1 (en) Motor-operated cover device
EP2583857B1 (en) Electricity charging point with inductive transmission of electrical energy
DE102009023364A1 (en) Motor vehicle, has front bonnet portion located in potential impact area and made of material that changes shape of front bonnet while subjecting to electrical current such that bonnet bulges upward in installed position
DE102017201111A1 (en) Charging socket unit and charging cable for an electrically operated motor vehicle
DE1286917B (en) Covering the underside of a passenger car
DE102015120208A1 (en) Passenger cars
WO2018130525A1 (en) Device for security checks
DE102005016923A1 (en) Bonnet (hood) raising device for vehicle has support with buffer element to come against bodywork part or bonnet
WO2012103986A2 (en) Rail vehicle with pantograph cover panel
DE102015220709A1 (en) motor vehicle
DE102017115544A1 (en) VEHICLE PANEL STRUCTURE
DE102010047271A1 (en) Safety device for vehicle to decrease injury intensity of pedestrian in case of front impact, has structural component arranged in portion of vehicle in driving direction of vehicle before windshield
DE102008053277B4 (en) Door arrangement for a rail vehicle
DE102018125811A1 (en) GLASSCHIEBEDACH WITH IMPACT PROTECTION AND ASSOCIATED PROCEDURE
EP1813483B1 (en) Vehicle with raisable bonnet
DE202011004161U1 (en) automatic locking system for vehicles
DE102015115227A1 (en) Radführungslenker for a motor vehicle
DE202005004789U1 (en) Recreational vehicle
DE102013002499B4 (en) Device and method for automatically operating a tailgate of a vehicle
EP1772313B1 (en) Illumination device
DE976896C (en) Motor vehicle body front part
DE102014001948A1 (en) Vehicle has bonnet which is pivotally mounted by hinge, and supporting element is arranged or formed on hinge in such way that the hinge is pre-stressed and is designed as stop element

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8130 Withdrawal