DE102011100114A1 - Safety device for use on outer side of car for protecting e.g. pedestrian during crash, has airbag positioned on outer side of vehicle, where airbag comprises coolant tank for introducing fluid coolant into unfolded airbag - Google Patents
Safety device for use on outer side of car for protecting e.g. pedestrian during crash, has airbag positioned on outer side of vehicle, where airbag comprises coolant tank for introducing fluid coolant into unfolded airbag Download PDFInfo
- Publication number
- DE102011100114A1 DE102011100114A1 DE201110100114 DE102011100114A DE102011100114A1 DE 102011100114 A1 DE102011100114 A1 DE 102011100114A1 DE 201110100114 DE201110100114 DE 201110100114 DE 102011100114 A DE102011100114 A DE 102011100114A DE 102011100114 A1 DE102011100114 A1 DE 102011100114A1
- Authority
- DE
- Germany
- Prior art keywords
- airbag
- vehicle
- coolant
- windshield
- outer side
- 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.)
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Classifications
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- 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
- B60R21/36—Protecting non-occupants of a vehicle, e.g. pedestrians using airbags
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- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R2021/26017—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow a cooling agent being added to the inflation fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft eine Sicherheitseinrichtung eines Fahrzeugs nach den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a safety device of a vehicle according to the features of the preamble of
Aus dem Stand der Technik sind Fahrzeuge bekannt, bei welchen bei einem Zusammenstoß mit einem Fußgänger eine Motorhaube durch vorgespannte Federn oder durch pyrotechnisch angetriebene Stellelemente angehoben wird, um einen Freiraum zwischen der Motorhaube und Motorraumteilen des Fahrzeugs zu vergrößern, so dass während des Fußgängeraufpralls ein stärkeres Nachgeben der Motorhaube ermöglicht ist.From the prior art vehicles are known in which a collision with a pedestrian, a hood is lifted by biased springs or by pyrotechnic driven actuators to increase a space between the hood and engine compartment parts of the vehicle, so that during the pedestrian impact a stronger Yielding the hood is possible.
Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Sicherheitseinrichtung eines Fahrzeugs anzugeben.The invention has for its object to provide an improved safety device of a vehicle.
Die Aufgabe wird erfindungsgemäß durch eine Sicherheitseinrichtung eines Fahrzeugs mit den Merkmalen des Anspruchs 1 gelöst.The object is achieved by a safety device of a vehicle with the features of
Bevorzugte Ausgestaltungen und Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.Preferred embodiments and further developments of the invention are specified in the dependent claims.
Eine Sicherheitseinrichtung eines Fahrzeugs zur Verringerung der Verletzungsintensität eines Fußgängers bei einem Frontaufprall umfasst erfindungsgemäß zumindest einen Scheibenairbag, welcher bei einem erfassten Aufprall einer Person automatisch aufblasbar, entfaltbar und auf einer Außenseite des Fahrzeugs zumindest über Teilbereichen einer Frontscheibe und/oder über an die Frontscheibe angrenzenden Bereichen einer Fahrzeugkarosserie positionierbar ist, wobei eine Einrichtung zum Einbringen eines Kühlmittels in den entfalteten Scheibenairbag vorgesehen ist.According to the invention, a safety device of a vehicle for reducing the intensity of injury of a pedestrian in the event of a frontal collision comprises at least one windshield airbag which is automatically inflatable, deployable and unfolded on an outside of the vehicle at least over partial areas of a windscreen and / or via areas adjacent to the windshield a vehicle body is positionable, wherein means for introducing a coolant is provided in the deployed windshield.
Durch den Scheibenairbag sind insbesondere untere Scheibenbereiche der Frontscheibe, d. h. eine so genannte Scheibenwurzel mit einer darunter angeordneten Instrumententafel sowie Scheibenwischer mit Wischerarmen und Wischerachsen und ein unterer und seitlicher Scheibenrahmen abdeckbar. Dadurch ist eine Aufprallenergie der Person, beispielsweise eines Fußgängers oder Radfahrers, absorbierbar und dadurch reduzierbar und die Person ist insbesondere vor Verletzungen geschützt, welche aus einem direkten Aufprall auf den sehr harten Scheibenrahmen, aus einem Durchbrechen der Frontscheibe und/oder aus einem Aufprall auf die Scheibenwischer und/oder aus einem Verhacken in den Scheibenwischern resultieren würden. Durch diese Maßnahmen sind Verletzungen des Körpers der Person reduzierbar und es ist insbesondere ein so genannter HIC-Wert oder Kopfbelastungswert reduzierbar, d. h. es ist bei einem Frontaufprall einer Person mit einer wesentlich geringeren Schwere von Kopfverletzungen zu rechnen.The windscreen airbag in particular lower windscreen areas of the windscreen, d. H. a so-called disc root with an instrument panel arranged underneath and windscreen wiper with wiper arms and wiper axes and a lower and lateral window frame can be covered. As a result, an impact energy of the person, for example, a pedestrian or cyclist, absorbable and thereby reducible and the person is particularly protected from injury, resulting from a direct impact on the very hard window frame, from a breach of the windscreen and / or an impact on the Windscreen wiper and / or would result from a pinning in the windshield wipers. By means of these measures injuries to the body of the person can be reduced and, in particular, a so-called HIC value or head load value can be reduced. H. it is to be reckoned with a front impact of a person with a substantially lower weight of head injuries.
Durch das Einbringen des Kühlmittels in den entfalteten Scheibenairbag ist ein zu dessen Entfaltung eingesetztes heißes Gas abkühlbar, wodurch sich ein Volumen des Gases und dadurch ein Restdruck im Scheibenairbag reduziert. Dies ermöglicht ein einfaches Raffen des Scheibenairbags und dadurch ein Aufheben einer durch den entfalteten Scheibenairbag für einen Fahrzeugführer verursachten Sichtbehinderung, so dass nach einem Auslosen der Sicherheitseinrichtung ein Liegenbleiben des Fahrzeugs aufgrund der Sichtbehinderung durch den entfalteten Scheibenairbag verhindert ist. Durch das schnelle Abkühlen des heißen Gases mittels des Kühlmittels ist eine sehr schnelle Raffung des Scheibenairbags ermöglicht, so dass das Fahrzeug sehr schnell wieder fahrbereit ist und auf diese Weise kein Verkehrshindernis für andere Verkehrsteilnehmer darstellt.By introducing the coolant into the deployed windshield, a hot gas used to deploy it can be cooled, which reduces a volume of the gas and thereby a residual pressure in the windshield. This allows a simple shirring of the windshield and thereby canceling a caused by the unfolded windshield for a driver vision obstruction, so that after a tripping of the safety device, a stoppage of the vehicle due to the visual obstruction is prevented by the unfolded windshield. Due to the rapid cooling of the hot gas by means of the coolant, a very rapid gathering of the windshield airbag is made possible, so that the vehicle is very quickly ready to drive again and thus does not constitute a traffic obstacle for other road users.
Ausführungsbeispiele der Erfindung werden anhand einer Zeichnung näher erläutert.Embodiments of the invention will be explained in more detail with reference to a drawing.
Dabei zeigt:Showing:
Der Scheibenairbag
Auf diese Weise ist durch den Scheibenairbag
Zusätzlich kann beispielsweise die Motorhaube
Die Sicherheitseinrichtung weist des Weiteren eine Einrichtung
Um das Kühlmittel in den Scheibenairbag
Eine automatische Auslösung kann beispielsweise durch eine Ansteuerung eines in der Zuleitung
Durch das Einbringen des Kühlmittels in den entfalteten Scheibenairbag
Dabei ist das Einbringen des Kühlmittels insbesondere bei einer Verwendung von pyrotechnischen Gasgeneratoren oder Hybrid-Gasgeneratoren zum Entfalten des Scheibenairbags
Das sehr schnelle und starke Abkühlen des zum Entfalten des Scheibenairbags
Auf diese Weise ist ein schnelles und einfaches Aufheben einer durch den entfalteten Scheibenairbag
Das Raffen des Scheibenairbags
Im hier dargestellten Ausführungsbeispiel ist die Raffeinrichtung
Das Auslösen des Raffens durch die maschinell betriebene Raffeinrichtung
Besonders vorteilhaft ist sowohl das automatische Auslösen des Einbringens des Kühlmittels in den entfalteten Scheibenairbag
Auf diese Weise sind beispielsweise bei einer Fehlauslösung des Scheibenairbags
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110100114 DE102011100114A1 (en) | 2011-04-30 | 2011-04-30 | Safety device for use on outer side of car for protecting e.g. pedestrian during crash, has airbag positioned on outer side of vehicle, where airbag comprises coolant tank for introducing fluid coolant into unfolded airbag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110100114 DE102011100114A1 (en) | 2011-04-30 | 2011-04-30 | Safety device for use on outer side of car for protecting e.g. pedestrian during crash, has airbag positioned on outer side of vehicle, where airbag comprises coolant tank for introducing fluid coolant into unfolded airbag |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011100114A1 true DE102011100114A1 (en) | 2011-11-17 |
Family
ID=44859886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110100114 Withdrawn DE102011100114A1 (en) | 2011-04-30 | 2011-04-30 | Safety device for use on outer side of car for protecting e.g. pedestrian during crash, has airbag positioned on outer side of vehicle, where airbag comprises coolant tank for introducing fluid coolant into unfolded airbag |
Country Status (1)
Country | Link |
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DE (1) | DE102011100114A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011114297A1 (en) * | 2011-09-23 | 2013-03-28 | Volkswagen Aktiengesellschaft | Safety device for use in motor vehicle i.e. passenger car, to protect pedestrians during front crash, has retraction device immediately retracting airbag after partial deployment of airbag into field of view releasing position |
DE102012200805A1 (en) * | 2012-01-20 | 2013-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Safety device for a motor vehicle |
US20150175121A1 (en) * | 2013-12-19 | 2015-06-25 | Hyundai Motor Company | Pedestrian airbag cushion |
-
2011
- 2011-04-30 DE DE201110100114 patent/DE102011100114A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011114297A1 (en) * | 2011-09-23 | 2013-03-28 | Volkswagen Aktiengesellschaft | Safety device for use in motor vehicle i.e. passenger car, to protect pedestrians during front crash, has retraction device immediately retracting airbag after partial deployment of airbag into field of view releasing position |
DE102011114297A8 (en) * | 2011-09-23 | 2013-08-29 | Volkswagen Aktiengesellschaft | Safety device for a motor vehicle |
DE102012200805A1 (en) * | 2012-01-20 | 2013-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Safety device for a motor vehicle |
WO2013107801A1 (en) * | 2012-01-20 | 2013-07-25 | Bayerische Motoren Werke Aktiengesellschaft | Safety device for a motor vehicle |
US20150175121A1 (en) * | 2013-12-19 | 2015-06-25 | Hyundai Motor Company | Pedestrian airbag cushion |
US9174605B2 (en) * | 2013-12-19 | 2015-11-03 | Hyundai Motor Company | Pedestrian airbag cushion |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R230 | Request for early publication | ||
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: 20141101 |