DE19955233C1 - Automobile airbag release device has acceleration sensor and impact sensor provided by light bulbs of different automobile signal lamps - Google Patents

Automobile airbag release device has acceleration sensor and impact sensor provided by light bulbs of different automobile signal lamps

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Publication number
DE19955233C1
DE19955233C1 DE1999155233 DE19955233A DE19955233C1 DE 19955233 C1 DE19955233 C1 DE 19955233C1 DE 1999155233 DE1999155233 DE 1999155233 DE 19955233 A DE19955233 A DE 19955233A DE 19955233 C1 DE19955233 C1 DE 19955233C1
Authority
DE
Germany
Prior art keywords
light bulbs
impact sensor
automobile
release device
signal lamps
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.)
Expired - Fee Related
Application number
DE1999155233
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German (de)
Inventor
Uwe Paul
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to DE1999155233 priority Critical patent/DE19955233C1/en
Application granted granted Critical
Publication of DE19955233C1 publication Critical patent/DE19955233C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The airbag release device uses an acceleration sensor and an impact sensor, which are coupled to an electronic control stage for operation of an airbag deployment device. The impact sensor is provided by a number of light bulbs (L) used for different signal lamps of the automobile, with indication of an impact upon the filaments of a number of light bulbs failing simultaneously.

Description

Heute werden nahezu alle Neufahrzeuge zumindest mit einem Fahrerairbag ausgerüstet. Er dient mittlerweile als unverzichtbares Sicherheitssystem in Pkws und verringert sehr stark die Verletzungsgefahr bei Kollisionen. In einer Pressemitteilung der GDV-Unfallforscher/Berlin vom 25.6.1998 ("Mit Airbags deutlicher Sicherheitsgewinn für angegurtete Autoinsassen - Verletzungsgefahren durch Airbags müssen weiter verringert werden - un­ nötig niedrige Auslöseschwelle für Airbags verursacht hohe Kosten" aus http://www.gdv.de/meinung_aktuelles/aktueller_service/sc250698-3.htm) werden aber auch negative Aspekte der Airbag-Sicherheitstechnologie ge­ nannt. Vor allem sind Fehlauslösungen ein großes Problem: "In vier von sieben Fällen konnte der Airbagsensor das Überfahren eines größeren Hin­ dernisses (z. B. Verkehrsinsel) nicht von einem Crash unterscheiden". A­ ber auch "Keine Airbagentfaltung trotz Unfalls" werden genannt. Es wird unter anderem gefordert "Eine Airbagauslösung im Stand muß technisch ausgeschlossen werden".Today almost all new vehicles are equipped with at least one driver airbag equipped. It now serves as an indispensable security system in Cars and greatly reduces the risk of injury in the event of a collision. In a press release from the GDV accident researcher / Berlin dated June 25, 1998 ("With airbags, significant safety gains for seated car occupants - The risk of injury from airbags must be further reduced necessary low deployment threshold for airbags causes high costs " http://www.gdv.de/meinung_aktuelles/aktueller_service/sc250698-3.htm) but also negative aspects of airbag safety technology called. Above all, false triggers are a big problem: "In four of The airbag sensor was able to drive over a larger area in seven cases dernis (eg traffic island) do not distinguish from a crash ". A About also "No airbag deployment despite accident" are mentioned. It will among other things required "An airbag deployment in the state must be technically be excluded ".

Der angesprochene Airbagsensor ist ein Beschleunigungssensor. Aus der gattungsbildenden DE 42 20 270 A1 ist eine Vorrichtung bekannt, bei der neben einem beschleunigungsempfindlichen Sensor ein Aufprallsensor zur Erkennung einer mechanischen Formveränderung verwendet wird. Der Aufprallsensor ist dabei in Form eines strahlungsoptischen Sensors ausge­ bildet, bei dem der Strahlengang einer Strahlung infolge einer Verformung beeinflußbar ist. Als nachteilig wird hierbei empfunden, daß zur Erken­ nung von Fahrzeugzusammenstößen zusätzliche Sensoren als Aufprallsen­ soren verwendet werden müssen.The airbag sensor mentioned is an acceleration sensor. From the A device is known in the generic DE 42 20 270 A1, in which in addition to an acceleration-sensitive sensor, an impact sensor for Detection of a mechanical change in shape is used. The The impact sensor is in the form of a radiation-optical sensor forms in which the beam path of radiation due to deformation can be influenced. It is perceived as a disadvantage here that to Erken of vehicle collisions additional sensors as impacts sensors must be used.

Aufgabe der vorliegenden Erfindung ist daher die Verwendung von bereits in einem Kraftfahrzeug vorhandenen Bauteilen zur Erkennung von Fahr­ zeugzusammenstößen. Diese Aufgabe wird erfindungsgemäß durch den in Anspruch 1 definierten Gegenstand gelöst. Das Auslöseverhalten des Air­ bags wird dadurch verbessert, daß der Aufprallsensor aus mehreren am Kraftfahrzeug befestigten Glühbirnen gebildet wird, und daß das Signal des Aufprallsensors durch das gleichzeitige Durchreißen der Glühfäden mehrerer Glühbirnen erzeugt wird.The object of the present invention is therefore the use of Components present in a motor vehicle for the detection of driving clashes. This object is achieved by the in Claim 1 defined object solved. The trigger behavior of the Air bags is improved in that the impact sensor consists of several am Motor vehicle attached light bulbs is formed and that the signal the impact sensor by simultaneously tearing the filaments multiple light bulbs is generated.

Es sind mindestens Begrenzungslicht, Abblendlicht, Fernlicht und Blinker vorne je rechts und links in ein Fahrzeug eingebaut; hinten rechts und links Schlußlicht, Bremslicht, Blinker, zum Teil nur an einer Seite Rückfahr­ scheinwerfer und Nebelschlußleuchte und in der Fahrzeugmitte teilweise mehrere Kennzeichenleuchten und drittes Bremslicht. Erfaßt man gleich­ zeitig das Durchreißen von beispielsweise drei der vier vorne je Seite vor­ handenen Glühfäden durch einen Unfall, wird der Airbag ausgelöst. Hinten können die Leuchten so gestaltet werden, daß rechts, links und in der Mitte ebenfalls je vier Glühbirnen vorhanden sind. Registriert man hier ebenfalls das gleichzeitige Reißen von drei der vier Glühfäden, wird ebenfalls der Airbag ausgelöst. Fällt durch einen Defekt eine Glühbirne aus, kann der Airbag beim gleichzeitigen Durchreißen von zwei der drei verbliebenen Glühfäden ausgelöst werden. Das Zerreißen der Glühfäden wird dadurch detektiert, daß man mißt, ob Strom durch die Glühfäden fließt.There are at least marker lights, low beam, high beam and turn signals installed in front of the vehicle on the right and left; behind right and left Tail lights, brake lights, indicators, sometimes only reversing on one side headlights and rear fog lights and partially in the center of the vehicle several license plate lights and third brake light. One detects immediately  tearing through, for example, three of the four in front on each side If there are filaments due to an accident, the airbag is triggered. In the back the lights can be designed so that right, left and in the middle there are also four light bulbs. You also register here the simultaneous tearing of three of the four filaments also becomes the Airbag deployed. If a light bulb fails due to a defect, it can Airbag if two of the three remaining are torn through at the same time Filaments are triggered. This will tear the filaments detects that one measures whether current flows through the filaments.

Ein prinzipielles Schema ist in der einzigen Zeichnung dargestellt. RV klein und RVgroß sind Vorwiderstände, die so bemessen sind, daß die Glühbirne nicht leuchtet. Durch messen eines Spannungsabfalls UV an RVklein wird erkannt, daß Strom durch die Glühbirne L fließt und der Glühfaden nicht gerissen ist. Reißt durch einen Unfall der Glühfaden, fließt kein Strom mehr und an RVklein fällt keine Spannung mehr ab. Zum Einschalten der Lampe wird mit dem Schalter S RVgroß überbrückt. Bei funktionierender Glühbirne kann man einen Spannungsabfall UV an RVklein messen. RVklein muß dabei so bemessen sein, daß die Funktion der Glühbirne nicht beein­ trächtigt wird.A basic diagram is shown in the single drawing. R V small and R V large are series resistors that are dimensioned so that the light bulb does not light up. By measuring a voltage drop U V at R Vklein it is recognized that current flows through the light bulb L and the filament is not broken. If the filament breaks due to an accident, no more current flows and no voltage drops at R Vklein . To switch on the lamp, the switch is bridged with the SR V large . If the light bulb is working, a voltage drop U V to R Vklein can be measured. R Vklein must be such that the function of the light bulb is not adversely affected.

Als Nebeneffekt kann durch die Überwachungselektronik die Funktionsfä­ higkeit der Beleuchtungsanlage des Fahrzeugs kontrolliert und der Ausfall einer Glühbirne angezeigt werden.As a side effect, the functionality of the monitoring electronics the vehicle's lighting system and the failure be displayed on a light bulb.

Lichtsysteme in Lichtbogen- und Leuchtdiodentechnik sind zur Erzeugung eines Auslösesignals nicht geeignet, da nicht detektiert werden kann, ob in nichtleuchtendem Zustand das Lichtsystem durch einen Unfall zerstört wurde.Lighting systems in arc and light-emitting diode technology are for generation a trigger signal is not suitable because it cannot be detected whether in non-illuminating condition the lighting system is destroyed by an accident has been.

Claims (1)

1. Vorrichtung zur Auslösung eines Airbags mit einem Beschleunigungs­ sensor, einem Aufprallsensor, einer Steuerelektronik und einer Vorrich­ tung zur Entfaltung des Airbags, dadurch gekennzeichnet, daß der Auf­ prallsensor aus mehreren am Kraftfahrzeug befestigten Glühbirnen ge­ bildet wird, und daß das Signal des Aufprallsensors durch das gleichzei­ tige Durchreißen der Glühfäden mehrerer Glühbirnen erzeugt wird.1. Device for triggering an airbag with an acceleration sensor, an impact sensor, control electronics and a Vorrich device for deploying the airbag, characterized in that the impact sensor is formed from several light bulbs attached to the motor vehicle, and that the signal of the impact sensor by the simultaneous tearing of the filaments of several light bulbs is generated.
DE1999155233 1999-11-17 1999-11-17 Automobile airbag release device has acceleration sensor and impact sensor provided by light bulbs of different automobile signal lamps Expired - Fee Related DE19955233C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999155233 DE19955233C1 (en) 1999-11-17 1999-11-17 Automobile airbag release device has acceleration sensor and impact sensor provided by light bulbs of different automobile signal lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999155233 DE19955233C1 (en) 1999-11-17 1999-11-17 Automobile airbag release device has acceleration sensor and impact sensor provided by light bulbs of different automobile signal lamps

Publications (1)

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DE19955233C1 true DE19955233C1 (en) 2001-01-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200826A1 (en) * 2014-01-17 2015-07-23 Volkswagen Aktiengesellschaft System, functional unit and method for detecting a collision of a means of transportation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220270A1 (en) * 1992-06-20 1993-12-23 Bosch Gmbh Robert Safety appts. for vehicle occupants - uses acceleration sensors at pillars and deformation sensors in doors, for each side of vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220270A1 (en) * 1992-06-20 1993-12-23 Bosch Gmbh Robert Safety appts. for vehicle occupants - uses acceleration sensors at pillars and deformation sensors in doors, for each side of vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Mit Airbags deutlicher Sicherheitsgewinn für angegurtete Autoinsassen-Verletzungsgefahren durch Airbags müssen weiter verringert werden- unnötig niedrige Auslöseschwelle für Airbags verursacht hohe Kosten" aus http://www.gdv.de/ meinung_aktuelles/aktueller_service/sc250698-3. htm *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200826A1 (en) * 2014-01-17 2015-07-23 Volkswagen Aktiengesellschaft System, functional unit and method for detecting a collision of a means of transportation

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8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8322 Nonbinding interest in granting licenses declared
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee