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DE102007040126A1 - Vehicle, particularly passenger car, has front hood which is movable by pyrotechnic actuator from its closure position to lifted protection position - Google Patents

Vehicle, particularly passenger car, has front hood which is movable by pyrotechnic actuator from its closure position to lifted protection position Download PDF

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Publication number
DE102007040126A1
DE102007040126A1 DE102007040126A DE102007040126A DE102007040126A1 DE 102007040126 A1 DE102007040126 A1 DE 102007040126A1 DE 102007040126 A DE102007040126 A DE 102007040126A DE 102007040126 A DE102007040126 A DE 102007040126A DE 102007040126 A1 DE102007040126 A1 DE 102007040126A1
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DE
Germany
Prior art keywords
hinge
vehicle
front hood
movable
pyrotechnic actuator
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Withdrawn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
DE102007040126A
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German (de)
Inventor
Norman Dix
Franz Roth
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 DE102007040126A priority Critical patent/DE102007040126A1/en
Publication of DE102007040126A1 publication Critical patent/DE102007040126A1/en
Withdrawn legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Superstructure Of Vehicle (AREA)

Abstract

The vehicle has a front hood (1) which is movable by a pyrotechnic actuator (17) from its closed position to a lifted protection position. A hinge (5) is provided which has different moment identifications depending on the moving direction of the front hood such that the hinge allows free rotation of front hood during lifting of the front hood. The movement of the front hood takes place from the lifted protection position into the closed position.

Description

Die Erfindung bezieht sich auf ein Fahrzeug, insbesondere Personenkraftwagen, mit einer Frontklappe, welche durch einen pyrotechnischen Aktuator aus ihrer Schließstellung in eine angehobene Schutzstellung bewegbar ist, wobei zumindest ihr der Windschutzscheibe des Fahrzeugs zugewandte Bereich über mindestens ein Scharnier anhebbar ist.The The invention relates to a vehicle, in particular a passenger car, with a front flap, which by a pyrotechnic actuator from its closed position to a raised protective position is movable, at least her the windshield of the vehicle facing area over at least one hinge liftable is.

Gattungsgemäße Anordnungen sind in den vielfältigsten Variationen bekannt. Sie dienen dazu, das Verletzungsrisiko eines auf die Frontklappe aufschlagenden Fußgängers oder Zweiradfahrers zu reduzieren.generic Arrangements are known in the most varied variations. They serve to reduce the risk of injury to the front door striking pedestrian or two-wheeler to reduce.

Zum Anheben der Frontklappe in ihre Schutzstellung werden meist pyrotechnische oder hydraulische Systeme eingesetzt. Die kostengünstiger umsetzbaren pyrotechnischen Systeme haben den Nachteil, dass der Druck relativ schnell abfällt. Das bedeutet, dass die Frontklappe nur eine relativ kurze Zeit in ihrer angehobenen Schutzstellung verbleibt. Dies kann sich nachteilig bei einem Mehrfachaufschlag oder dann auswirken, wenn über sogenannte Pre-Crash-Sensoren ein möglicher Aufschlag detektiert und darüber vor dem eigentlichen Aufschlag die Frontklappe in die Schutzstellung bewegt wird.To the Lifting the front flap in its protective position are usually pyrotechnic or hydraulic systems used. The cheaper implementable pyrotechnic systems have the disadvantage that the Pressure drops relatively quickly. That means the front door only a relatively short time in its raised protective position remains. This can be disadvantageous in a multiple surcharge or impact when using so-called pre-crash sensors detected a possible impact and above before the actual impact, the front flap in the protective position is moved.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, bei Verwendung von pyrotechnischen Aktuatoren sicher zu stellen, dass die Frontklappe eine längere Zeit in der angehobenen Schutzstellung verbleibt.Of the present invention is based on the object when using of pyrotechnic actuators to ensure that the front door a longer time remains in the raised protective position.

Die Aufgabe wird dadurch gelöst, dass beim Anheben der Frontklappe das Scharnier eine im Wesentlichen freie Drehung der Frontklappe ermöglicht und dass die Bewegung der Frontklappe von der angehobenen Schutzstellung in die Schließstellung gedämpft erfolgt. Durch die Dämpfung wird erreicht, dass die Frontklappe auch dann, wenn der pyrotechnische Aktuator drucklos ist, in der Schutzstellung verbleibt bzw. sich nur geringfügig absenkt. Durch die erfindungsgemäße Ausgestaltung wird nicht nur der vorstehend genannte Vorteil erzielt, sondern darüber hinaus auch das Verletzungsrisiko eines auf die Frontklappe aufschlagenden Fußgängers oder Zweiradfahrers reduziert, da die Dämpfung als Energiewandler wirkt. Über die Abstimmung der Momentenkennungen ist es möglich, dieses Verhalten für einen großen Bereich abzustimmen.The Task is solved by lifting the front door the hinge is a substantially free rotation of the front door allows and that the movement of the front flap of the raised guard position damped in the closed position he follows. By the damping is achieved that the front flap even if the pyrotechnic actuator is depressurized, in the Protective position remains or only slightly lowered. By the embodiment according to the invention is not only achieves the above advantage, but beyond also the risk of injury of impacting the front door Pedestrian or two-wheeler reduced as the Damping acts as an energy converter. About the vote The moment labels make it possible for this behavior to vote for a large area.

Zur Erzielung der gewünschten unterschiedlichen Momentenkennungen können an sich alle bekannten Maßnahmen Verwendung finden die geeignet sind, eine Translations- oder Rotationsbewegung in einer Richtung zu dämpfen und eine im Wesentlichen ungehinderte Bewegung in die entgegengesetzte Richtung zu erlauben.to Achieving the desired different moment identifiers can use all known measures per se which are suitable for translational or rotational movement in to dampen a direction and a substantially unhindered one To allow movement in the opposite direction.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung kann die Dämpfung über einen separaten Dämpfer erfolgen, welcher an einem Scharnierarm des Scharniergelenks angreift. Solche separaten Dämpfer sind sehr kostengünstig und robust.According to one advantageous embodiment of the invention, the damping over a separate damper, which on a hinge arm of the Hinge joint attacks. Such separate dampers are very cost effective and robust.

Lässt sich ein solcher, an einem Scharnierarm des Scharniergelenks angreifender Dämpfer, bspw. aufgrund der baulichen Gegebenheiten, nicht realisieren, dann kann gemäß einem weiteren Merkmal der Erfindung die Dämpfung durch ein Dämpfungselement erfolgen, welches in einem Scharniergelenk des Scharniers angeordnet, also in diesem integriert ist. Derartige Scharniere sind als solche für einen anderen Zweck im Fahrzeugbau, bspw. aus der DE 196 25 556 A1 , bekannt.Can such a, on a hinge arm of the hinge joint attacking damper, eg. Due to the structural conditions, not realize, then, according to a further feature of the invention, the attenuation by a damping element, which is arranged in a hinge joint of the hinge, so integrated in this is. Such hinges are as such for another purpose in vehicle construction, for example. From the DE 196 25 556 A1 , known.

Ein Ausführungsbeispiel der Erfindung ist als Prinzipbild in der Zeichnung dargestellt.One Embodiment of the invention is as a schematic diagram in the drawing shown.

Die Zeichnung zeigt eine Frontklappe 1 eines Personenkraftwagens im Anschlussbereich an dessen Windschutzscheibe 3. Zur Lagerung der Frontklappe 1 ist ein Scharnier 5 vorgesehen, welches zwei Scharnierarme 7 und 9 und drei Scharniergelenke 11, 13 und 15 umfasst. An dem Scharnierarm 7 greift ein pyrotechnischer Aktuator 17 an, der in der gezeichneten Stellung den rückwärtigen Bereich der Frontklappe 1 angehoben hat. Während die Scharniergelenke 11, 13 und 15 neben den systembedingten Reibungswiderständen der Ausstellbewegung der Frontklappe 1 einen Widerstand entgegensetzen, ist das Scharnier 13 so konzipiert, dass in umgekehrter Richtung ein Gegenmoment erzeugt wird.The drawing shows a front flap 1 a passenger car in the connection area on the windshield 3 , For storage of the front flap 1 is a hinge 5 provided, which two hinge arms 7 and 9 and three hinged joints 11 . 13 and 15 includes. On the hinge arm 7 engages a pyrotechnic actuator 17 in the drawn position the rear portion of the front door 1 has raised. While the hinge joints 11 . 13 and 15 In addition to the system-related frictional resistance of the Ausstellbewegung the front door 1 To oppose a resistance is the hinge 13 designed so that in the opposite direction a counter-torque is generated.

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 19625556 A1 [0008] - DE 19625556 A1 [0008]

Claims (3)

Fahrzeug, insbesondere Personenkraftwagen, mit einer Frontklappe, welche durch einen pyrotechnischen Aktuator aus ihrer Schließstellung in eine angehobene Schutzstellung bewegbar ist, wobei zumindest ihr der Windschutzscheibe des Fahrzeugs zugewandte Bereich über mindestens ein Scharnier anhebbar ist, dadurch gekennzeichnet, dass das Scharnier (5) in Abhängigkeit von der Bewegungsrichtung der Frontklappe (1) unterschiedliche Momentenkennungen aufweist, derart, dass beim Anheben der Frontklappe (1) das Scharnier (5) eine im Wesentlichen freie Drehung der Frontklappe (1) ermöglicht, und dass die Bewegung der Frontklappe (1) von der angehobenen Schutzstellung in die Schließstellung gedämpft erfolgt.Vehicle, in particular a passenger vehicle, having a front flap which can be moved from its closed position into a raised protective position by a pyrotechnic actuator, wherein at least its area facing the windshield of the vehicle can be raised via at least one hinge, characterized in that the hinge ( 5 ) depending on the direction of movement of the front flap ( 1 ) has different moment identifiers, such that when lifting the front door ( 1 ) the hinge ( 5 ) a substantially free rotation of the front door ( 1 ) and that the movement of the front flap ( 1 ) is attenuated from the raised protective position to the closed position. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass die Dämpfung über einen separaten Dämpfer erfolgt, welcher an einem Scharnierarm (7) des Scharniers (5) angreift.Vehicle according to claim 1, characterized in that the damping takes place via a separate damper, which on a hinge arm ( 7 ) of the hinge ( 5 ) attacks. Fahrzeug nach Anspruch 2, dadurch gekennzeichnet, dass die Dämpfung durch ein Dämpfungselement erfolgt, welches in einem Scharniergelenk (13) des Scharniers (5) angeordnet ist.Vehicle according to claim 2, characterized in that the damping is effected by a damping element, which in a hinge joint ( 13 ) of the hinge ( 5 ) is arranged.
DE102007040126A 2007-08-24 2007-08-24 Vehicle, particularly passenger car, has front hood which is movable by pyrotechnic actuator from its closure position to lifted protection position Withdrawn DE102007040126A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102007040126A DE102007040126A1 (en) 2007-08-24 2007-08-24 Vehicle, particularly passenger car, has front hood which is movable by pyrotechnic actuator from its closure position to lifted protection position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007040126A DE102007040126A1 (en) 2007-08-24 2007-08-24 Vehicle, particularly passenger car, has front hood which is movable by pyrotechnic actuator from its closure position to lifted protection position

Publications (1)

Publication Number Publication Date
DE102007040126A1 true DE102007040126A1 (en) 2009-02-26

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DE102007040126A Withdrawn DE102007040126A1 (en) 2007-08-24 2007-08-24 Vehicle, particularly passenger car, has front hood which is movable by pyrotechnic actuator from its closure position to lifted protection position

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2364886A1 (en) 2010-03-08 2011-09-14 Flexngate Automotive Iberica, S.A. Device for the displacement of the articulated attachment between a hinge of a hood of an automotive vehicle and said hood in the event of someone being hit

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19625556A1 (en) 1996-06-26 1998-01-02 Hans Dipl Ing Kuehl Hinge with swivel brake
DE10116716A1 (en) * 2001-04-04 2002-10-10 Volkswagen Ag Hinge unit for vehicle bonnet for raising into impact position has support fixed on vehicle and energy accumulator with adjusting member to raise up bonnet in event of collision with e.g. pedestrian
DE10336584A1 (en) * 2002-10-07 2004-04-15 Trw Occupant Restraint Systems Gmbh & Co. Kg Engine bonnet hinge has two pivot-interconnected members which after overcoming mechanical lock is transferable from extended position into locked position in which members can no longer hinge in relation to each other
DE69914260T2 (en) * 1998-06-26 2004-07-01 Nissan Motor Co., Ltd., Yokohama Device and method for damping the impact of a pedestrian during an impact with a motor vehicle
DE10325351A1 (en) * 2003-06-05 2004-12-30 Daimlerchrysler Ag Front engine bonnet structure for a motor vehicle has a hinged link between an engine bonnet and a vehicle's bodywork as well as articulated movement on bearings
DE102004050078A1 (en) * 2003-10-15 2005-06-09 Mitsubishi Jidosha Kogyo K.K. Hood device for a vehicle
DE102005006580A1 (en) * 2004-02-14 2005-09-08 Ford Global Technologies, LLC, Dearborn hinge assembly
DE102004056301A1 (en) * 2004-10-19 2006-04-20 Witte-Velbert Gmbh & Co. Kg Hinge fitting for front hood of passenger car, has hinge side fixing point that moves on circular path around catch side fixing point, during sudden rising of front hood, and captivation unit determining position of hinge support
DE60301778T2 (en) * 2002-12-20 2006-07-13 Pyroalliance Safety device for lifting a bonnet in the event of a collision

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19625556A1 (en) 1996-06-26 1998-01-02 Hans Dipl Ing Kuehl Hinge with swivel brake
DE69914260T2 (en) * 1998-06-26 2004-07-01 Nissan Motor Co., Ltd., Yokohama Device and method for damping the impact of a pedestrian during an impact with a motor vehicle
DE10116716A1 (en) * 2001-04-04 2002-10-10 Volkswagen Ag Hinge unit for vehicle bonnet for raising into impact position has support fixed on vehicle and energy accumulator with adjusting member to raise up bonnet in event of collision with e.g. pedestrian
DE10336584A1 (en) * 2002-10-07 2004-04-15 Trw Occupant Restraint Systems Gmbh & Co. Kg Engine bonnet hinge has two pivot-interconnected members which after overcoming mechanical lock is transferable from extended position into locked position in which members can no longer hinge in relation to each other
DE60301778T2 (en) * 2002-12-20 2006-07-13 Pyroalliance Safety device for lifting a bonnet in the event of a collision
DE10325351A1 (en) * 2003-06-05 2004-12-30 Daimlerchrysler Ag Front engine bonnet structure for a motor vehicle has a hinged link between an engine bonnet and a vehicle's bodywork as well as articulated movement on bearings
DE102004050078A1 (en) * 2003-10-15 2005-06-09 Mitsubishi Jidosha Kogyo K.K. Hood device for a vehicle
DE102005006580A1 (en) * 2004-02-14 2005-09-08 Ford Global Technologies, LLC, Dearborn hinge assembly
DE102004056301A1 (en) * 2004-10-19 2006-04-20 Witte-Velbert Gmbh & Co. Kg Hinge fitting for front hood of passenger car, has hinge side fixing point that moves on circular path around catch side fixing point, during sudden rising of front hood, and captivation unit determining position of hinge support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2364886A1 (en) 2010-03-08 2011-09-14 Flexngate Automotive Iberica, S.A. Device for the displacement of the articulated attachment between a hinge of a hood of an automotive vehicle and said hood in the event of someone being hit

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R120 Application withdrawn or ip right abandoned

Effective date: 20140515