DE102009035568A1 - Safety arrangement for motor vehicle, has set of sensors arranged between ends of bumper-cross bar and crash box, and arranged far away from crash box, where mold cavities are provided at ends for limiting folding movement - Google Patents
Safety arrangement for motor vehicle, has set of sensors arranged between ends of bumper-cross bar and crash box, and arranged far away from crash box, where mold cavities are provided at ends for limiting folding movement Download PDFInfo
- Publication number
- DE102009035568A1 DE102009035568A1 DE200910035568 DE102009035568A DE102009035568A1 DE 102009035568 A1 DE102009035568 A1 DE 102009035568A1 DE 200910035568 DE200910035568 DE 200910035568 DE 102009035568 A DE102009035568 A DE 102009035568A DE 102009035568 A1 DE102009035568 A1 DE 102009035568A1
- Authority
- DE
- Germany
- Prior art keywords
- crash box
- cross member
- safety arrangement
- crash
- bumper cross
- 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- Withdrawn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
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
- B60R19/483—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds with obstacle sensors of electric or electronic type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
Abstract
Description
Die Erfindung betrifft eine Sicherheitsanordnung für ein Kraftfahrzeug gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a safety arrangement for a motor vehicle according to the preamble of Claim 1.
Moderne Kraftfahrzeuge sind im Frontbereich mit einem Stoßfängerquerträger zur Montage des Stoßfängers versehen, der über zwei so genannte Crashboxen mit einer Karosserie verbunden ist. Die Crashbox ist ein Sicherheitssystem, das als Schockabsorber wirkt. Durch geschickte Wahl von Werkstoffen und einer besonderen Verformungscharakteristik kann die Crashbox bei einem Aufprall auftreffende Energie absorbieren. Beim Aufprall wird die Energie von der Karosserie direkt in die Crashbox weitergeleitet, die sich dabei irreversibel verformt. Bis zu einer bestimmten Aufprallgeschwindigkeit kann dabei die gesamte Energie von der Crashbox aufgenommen werden, so dass eine Verformung von Karosserie, Rahmen oder Fahrwerk vermieden werden kann. Nach einem Unfall wird die Crashbox dann einfach ausgetauscht. Bei Aufprallereignissen mit höherer Aufprallenergie absorbiert die Crashbox zumindest einen Teil der Aufprallenergie und mindert somit die Auswirkungen des Aufpralls.modern Motor vehicles are in the front area with a bumper cross member for Mounting the bumper, the over two so-called crash boxes connected to a bodywork. The Crashbox is a safety system that acts as a shock absorber. Through skillful choice of materials and a special deformation characteristics The Crashbox can absorb impact energy in an impact. Upon impact, the energy from the body is directly in the Forwarded Crashbox, which deforms irreversibly. Up to a certain impact speed can thereby the entire Energy absorbed by the crashbox, causing a deformation can be avoided by body, frame or chassis. To an accident, the crash box is then easily replaced. In impact events with higher Impact energy absorbs the Crashbox at least part of the Impact energy and thus reduces the impact of the impact.
Die Crashboxen können in der Nähe von Enden des Stoßfänger-Querträgers so angeordnet sein, dass das jeweilige Ende bei einem darauf einwirkenden Aufprall in Richtung der Crashbox anklappbar ist. In diesem Fall verformt sich lediglich der Stoßfänger-Querträger. Ein solcher Stoßfänger-Querträger wird auch Biegeträger genannt.The Crashboxes can near of bumper cross member so ends be arranged that the respective end in an acting on it Impact can be folded in the direction of the crash box. In this case only the bumper cross member deforms. One such bumper cross member is also bending beams called.
Am Stoßfänger-Querträger sind zwei Sensoren jeweils in der Nähe einer Crashbox angeordnet, die ein Airbagsteuergerät bei der Ermittlung von Aufprallereignissen unterstützen. Diese Sensoren werden auch Up-Front-Sensoren genannt.At the Bumper cross member are two sensors each nearby a crash box, which is an airbag control unit at the Support determination of impact events. These sensors will be also called up-front sensors.
Es ist eine Aufgabe der Erfindung, eine verbesserte Sicherheitsanordnung für ein Kraftfahrzeug gemäß dem Oberbegriff des Anspruchs 1 anzugeben.It It is an object of the invention to provide an improved safety arrangement for a Motor vehicle according to the preamble of claim 1.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Anordnung gemäß Anspruch 1 oder 2.The The object is achieved by an arrangement according to claim 1 or 2.
Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.advantageous Embodiments are the subject of the dependent claims.
Gemäß einer ersten erfindungsgemäßen Ausgestaltung umfasst eine Sicherheitsanordnung für ein Kraftfahrzeug einen Stoßfänger-Querträger, mindestens zwei Crashboxen und mindestens zwei am Stoßfänger-Querträger angeordnete Sensoren zur Ermittlung eines Aufprallereignisses. Mittels der Crashboxen ist durch Verformung Energie eines auf den Stoßfänger-Querträger einwirkenden Aufpralls absorbierbar. Die Crashboxen sind in der Nähe von Enden des Stoßfänger-Querträgers so angeordnet, dass das jeweilige Ende bei einem auf das jeweilige Ende einwirkenden Aufprall in Richtung der Crashbox anklappbar ist. Die Sensoren sind erfindungsgemäß jeweils zwischen dem Ende und der Crashbox, jedoch entfernt von der Crashbox, das heißt nicht in deren unmittelbarer Nähe angeordnet. Zusätzlich ist am Ende des Stoßfänger-Querträgers eine Anformung zur Begrenzung einer Anklappbewegung vorgesehen. Bei einem schrägen Aufprall auf den Stoßfänger-Querträger klappt dieser soweit an die Crashbox an, bis die Anformung an der Crashbox anschlägt. Zwischen dem Rest des angeklappten Endes und der Crashbox ergibt sich dabei ein freier Raum, der dem dort platzierten Sensor Platz bietet („Überlebensraum”), so dass der Sensor nicht zerstört wird. Auf diese Weise kann das Auslöseverhalten des Airbagsteuergeräts und der damit verbundenen Rückhaltesysteme, wie zum Beispiel Airbags oder Gurtstraffer, optimiert werden. Beispielsweise wird eine Auslösung bei zu geringer Anprallenergie infolge Zerstörung der Sensoren vermieden. Hingegen würde der Sensor bei Anordnung in unmittelbarer Nähe zur Crashbox, wie aus dem Stand der Technik bekannt, beim Anklappen des Endes zerstört.According to one first embodiment of the invention For example, a safety arrangement for a motor vehicle comprises a bumper cross member, at least two crash boxes and at least two arranged on the bumper cross member sensors for Determination of an impact event. By means of the crash boxes is by deformation energy of an impact acting on the bumper cross member impact absorbable. The crash boxes are nearby of bumper cross member so ends arranged that the respective end at one on the respective end impact acting in the direction of the crash box can be folded. The Sensors are according to the invention respectively between the end and the crashbox, but away from the crashbox, this means not in their immediate vicinity arranged. additionally is at the end of the bumper cross member one Anformung provided to limit a folding movement. At a bevel Impact on the bumper cross member works this far to the crash box, until the Anformung at the crash box strikes. Between the rest of the folded end and the crash box results This creates a free space, the place of the sensor placed there offers ("survival space"), so that the sensor is not destroyed becomes. In this way, the triggering behavior of the airbag control unit and the associated restraint systems, such as airbags or seatbelt pretensioners. For example a trigger at too low impact energy due to destruction of the sensors avoided. On the other hand would the sensor when placed in close proximity to the crash box, as from the Known in the art, destroyed when folding the end.
In einer alternativen oder zusätzlichen Ausführungsform der Erfindung kann in der jeweiligen Crashbox eine Aussparung (auch Lücke oder Einzug) zur Aufnahme des zugehörigen Sensors im angeklappten Zustand des Endes vorgesehen sein. Auf diese Weise wird eine Zerstörung des Sensors auch dann vermieden, wenn die Aufprallenergie auf das Ende so hoch ist, dass es deformiert wird und der Überlebensraum sich dementsprechend verringert.In an alternative or additional embodiment The invention can in the respective crash box a recess (also Gap or Feeder) for receiving the associated Sensor be provided in the folded state of the end. To this Way becomes destruction The sensor also avoids when the impact energy on the end is so high that it is deformed and the survival space is accordingly reduced.
Im Folgenden werden Ausführungsbeispiele der Erfindung anhand von Zeichnungen näher erläutert.in the Below are embodiments of the Invention explained in more detail with reference to drawings.
Dabei zeigen:there demonstrate:
Einander entsprechende Teile sind in allen Figuren mit denselben Bezugszeichen versehen.each other corresponding parts are in all figures with the same reference numerals Mistake.
Bei
einem schrägen
Aufprall auf den Stoßfänger-Querträger
Ein
stärkerer
Aufprall auf das Ende
Um
dies zu vermeiden, kann die Sicherheitsanordnung
In
dieser Ausführungsform
der Erfindung ist in der Crashbox
Die
in den
Eine
weitere Möglichkeit
wäre eine
Aussparung im Ende
Die
Sicherheitsanordnung
Die
Crashbox
Die
Crashbox
Der
Stoßfänger-Querträger
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910035568 DE102009035568A1 (en) | 2009-07-31 | 2009-07-31 | Safety arrangement for motor vehicle, has set of sensors arranged between ends of bumper-cross bar and crash box, and arranged far away from crash box, where mold cavities are provided at ends for limiting folding movement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910035568 DE102009035568A1 (en) | 2009-07-31 | 2009-07-31 | Safety arrangement for motor vehicle, has set of sensors arranged between ends of bumper-cross bar and crash box, and arranged far away from crash box, where mold cavities are provided at ends for limiting folding movement |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009035568A1 true DE102009035568A1 (en) | 2010-02-25 |
Family
ID=41566991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910035568 Withdrawn DE102009035568A1 (en) | 2009-07-31 | 2009-07-31 | Safety arrangement for motor vehicle, has set of sensors arranged between ends of bumper-cross bar and crash box, and arranged far away from crash box, where mold cavities are provided at ends for limiting folding movement |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009035568A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9527463B2 (en) * | 2014-12-01 | 2016-12-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Bumper assemblies including spacer members and vehicles incorporating the same |
-
2009
- 2009-07-31 DE DE200910035568 patent/DE102009035568A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9527463B2 (en) * | 2014-12-01 | 2016-12-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Bumper assemblies including spacer members and vehicles incorporating the same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20150203 |