DE102005058924A1 - Method for controlling irreversible safety device e.g. airbag system, for motor vehicle, uses device release algorithm containing data relating to safety device - Google Patents
Method for controlling irreversible safety device e.g. airbag system, for motor vehicle, uses device release algorithm containing data relating to safety device Download PDFInfo
- Publication number
- DE102005058924A1 DE102005058924A1 DE102005058924A DE102005058924A DE102005058924A1 DE 102005058924 A1 DE102005058924 A1 DE 102005058924A1 DE 102005058924 A DE102005058924 A DE 102005058924A DE 102005058924 A DE102005058924 A DE 102005058924A DE 102005058924 A1 DE102005058924 A1 DE 102005058924A1
- Authority
- DE
- Germany
- Prior art keywords
- safety device
- belt
- algorithm
- data
- reversible
- 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
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical 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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01542—Passenger detection systems detecting passenger motion
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01252—Devices other than bags
- B60R2021/01265—Seat belts
- B60R2021/01272—Belt tensioners
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical 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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical 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 the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
- B60R21/01548—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment sensing the amount of belt winded on retractor
Abstract
Description
Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zur Steuerung wenigstens einer irreversiblen Sicherheitseinrichtung in einem Kraftfahrzeug.The The invention relates to a method and a device for controlling at least one irreversible safety device in a motor vehicle.
Kraftfahrzeuge sind heutzutage mit verschiedenartigen Sicherheitseinrichtungen ausgestattet. Die Sicherheitseinrichtungen lassen sich in irreversible Systeme, die nach einmaligem Auslösen nicht wieder funktionsfähig sind, und reversible Systeme unterteilen, die nach Beendigung einer Gefahrensituation wieder in einen Ausgangszustand zurückversetzt werden können. Zu den irreversiblen Sicherheitseinrichtungen zählen z.B. Airbagsysteme oder pyrotechnische Gurtstraffer. Eine reversible Sicherheitseinrichtung kann z.B. ein Sicherheitsgurtsystem mit einem elektrischen Gurtaufroller sein, der über eine Vorstraffunktion verfügt.motor vehicles are nowadays with various safety devices fitted. The safety devices can be irreversible Systems that are not functional again after a single release, and subdivide reversible systems after the end of a hazardous situation can be returned to an initial state. To the irreversible safety devices include e.g. Airbag systems or pyrotechnic Pretensioners. A reversible safety device may e.g. one Seat belt system with an electric belt retractor, the one about Pre-puncture features.
Die WO 01/17825 A1 zeigt eine Steuerung, die abhängig von einer Vielzahl verschiedener Sensorsignale (unter anderem bezüglich Präsenz, Gewicht und Position von Fahrzeuginsassen sowie Pre-Crash- und Unfallschwere-Signale) mehrere Ausgangssignale zur Ansteuerung verschiedener Sicherheitseinrichtungen (Gurtvorstraffer, Gurtaufroller, Airbag) bereitstellt. Kernstück der Steuerung ist eine Fuzzy-Logik, die anhand eines vorgegebenen Algorithmus für eine optimierte Ansteuerung der einzelnen Sicherheitseinrichtungen sorgt.The WO 01/17825 A1 shows a controller that is dependent on a variety of different Sensor signals (among others regarding Presence, Weight and position of vehicle occupants as well as pre-crash and accident severity signals) several output signals for controlling various safety devices Belt pretensioner, belt retractor, airbag) provides. Centerpiece of the controller is a fuzzy logic based on a given algorithm for one Optimized control of the individual safety devices ensures.
Eine ähnliche
Steuerung ist aus der
Auch die WO 2004/085220 A1 betrifft eine optimierte Ansteuerung aktiver und passiver Sicherheitseinrichtungen auf der Grundlage zahlreicher Sensordaten und deren Auswertung in einem sogenannten Gefahrenrechner.Also WO 2004/085220 A1 relates to an optimized activation of active and passive safety devices based on numerous sensor data and their evaluation in a so-called hazard calculator.
Schließlich zeigen
auch die
Aufgabe der Erfindung ist es, die Kriterien für die Auslösung irreversibler Sicherheitseinrichtungen in einem Kraftfahrzeug zu verbessern.task The invention is the criteria for the triggering of irreversible safety devices in to improve a motor vehicle.
Dies wird erfindungsgemäß durch ein Verfahren der eingangs genannten Art erreicht, bei dem die Steuerung wenigstens einer irreversiblen Sicherheitseinrichtung unter Einbeziehung von Daten wenigstens einer reversiblen Sicherheitseinrichtung erfolgt. Bislang ist es lediglich bekannt, mittels geeigneter Sensoren kritische Fahrsituationen oder die Schwere eines Aufpralls zu erkennen und dementsprechend reversible bzw. irreversible Schutzmaßnahmen einzuleiten. Der Grundgedanke der Erfindung besteht jedoch darin, bestimmte Daten einer im Fahrzeug vorhandenen reversiblen Sicherheitseinrichtung auszuwerten und in die Steuerung der irreversiblen Sicherheitseinrichtung einfließen zu lassen. Diese Daten können anstelle von oder zusätzlich zu anderen Fahrzeugsensordaten verwendet werden. Dadurch ist eine Erweiterung der Kriterien für die Steuerung der irreversiblen Sicherheitseinrichtung für einen optimalen Schutz der Fahrzeuginsassen möglich.This is inventively achieved a method of the type mentioned, in which the controller at least one irreversible safety device including data of at least one reversible safety device takes place. So far, it is only known, by means of suitable sensors critical Recognize driving situations or the severity of an impact and accordingly reversible or irreversible protective measures initiate. However, the basic idea of the invention is certain data of an existing in the vehicle reversible safety device evaluate and control the irreversible safety device flow in allow. This data can instead of or in addition used for other vehicle sensor data. This is one Extension of the criteria for the control of the irreversible safety device for a optimum protection of the vehicle occupants possible.
Für die Aktivierung der irreversiblen Sicherheitseinrichtung kann insbesondere ein Auslösealgorithmus vorgesehen sein, in den die Daten der reversiblen Sicherheitseinrichtung einfließen.For activation The irreversible safety device can in particular be a triggering algorithm be provided, in which the data of the reversible safety device incorporated.
Vorzugsweise bestimmt dieser Auslösealgorithmus im Auslösefall auch die Art der Ansteuerung der irreversiblen Sicherheitseinrichtung. So kann unter Einbeziehung der Daten der reversiblen Sicherheitseinrichtung z.B. eine situationsbedingte optimale Härte eines Airbags festgelegt werden, wobei der Auslösealgorithmus eine entsprechende Ansteuerung der reversiblen Sicherheitseinrichtung vornimmt, z.B. durch Zünden nur bestimmter Stufen eines Gasgenerators oder durch gezielte Freigabe von Abströmöffnungen.Preferably this triggering algorithm determines in the case of triggering also the type of control of the irreversible safety device. Thus, taking into account the data of the reversible safety device e.g. set a situation-related optimal hardness of an airbag be, taking the triggering algorithm a corresponding control of the reversible safety device performs, e.g. by ignition only certain stages of a gas generator or by targeted release from outflow openings.
Gemäß der bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens ist die reversible Sicherheitseinrichtung ein Sicherheitsgurtsystem, insbesondere mit einem elektrischen Gurtaufroller. In diesem Fall betreffen die Daten, die in die Steuerung der irreversiblen Sicherheitseinrichtung einbezogen werden, vorzugsweise den Gurtbandauszug, insbesondere die Gurtbandauszugslänge, -geschwindigkeit und/oder -beschleunigung.According to the preferred Embodiment of the inventive method the reversible safety device is a safety belt system, in particular with an electric belt retractor. In this case, the concern Data included in the control of the irreversible safety device be involved, preferably the belt webbing, in particular the webbing extension length, speed and / or acceleration.
Weitere vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens ergeben sich aus den Unteransprüchen.Further advantageous developments of the method according to the invention arise from the dependent claims.
Die Erfindung schafft auch eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.The The invention also provides a device for carrying out the inventive method.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den beigefügten Zeichnungen, auf die Bezug genommen wird. In den Zeichnungen zeigen:Further features and advantages of the invention will become apparent from the following description and from the accompanying drawings, to which reference is made. In the drawings show:
In
Ein
Sitzpositionssensor
In
Der
Insassenbewegungsalgorithmus dient selbstverständlich auch als Grundlage für die Steuerung
des Sicherheitsgurtsystems mit dem elektrischen Gurtaufroller und
dem pyrotechnischen Gurtstraffer. Die Entscheidung darüber, ob
der Fahrzeuginsasse
Der
in
Der
Signalverlauf
Eine übermäßig hohe
Gurtrückhaltekraft
sollte vermieden werden. Die Gurtspannung wird gemäß
Die
vom Gurt aufgenommene Energie Egurt als
Funktion der Vorverlagerung x ist in dem Diagramm der
Abhängig von
den ermittelten Werten können
nachfolgend eingeleitete Sicherheitsmaßnahmen optimal angepaßt werden,
um den Fahrzeuginsassen
Die
Entscheidung, ob irreversible Sicherheitsvorkehrungen erforderlich
sind, wird mit Hilfe der in
Zusammengefaßt sind
zwei Aspekte wesentlich für
den Schutz des Fahrzeuginsassen
Wie
in
Gemäß
Die
Entscheidung über
die Auslösung
der irreversiblen Sicherheitseinrichtung wird mit Hilfe eines Algorithmus
getroffen, der einen Frontalaufprall erkennt. Die Beschleunigung
a des Fahrzeuginsassen
Der
Phasenraum des harmonischen Oszillatormodells ist in
Eine
alternative Möglichkeit
der Aufprallerkennung besteht darin, die Geschwindigkeit ẋ und Verlagerung
x des Fahrzeuginsassen
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102005058924.3A DE102005058924B4 (en) | 2005-12-09 | 2005-12-09 | Method and device for controlling an irreversible safety device in a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102005058924.3A DE102005058924B4 (en) | 2005-12-09 | 2005-12-09 | Method and device for controlling an irreversible safety device in a motor vehicle |
Publications (2)
Publication Number | Publication Date |
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DE102005058924A1 true DE102005058924A1 (en) | 2007-06-14 |
DE102005058924B4 DE102005058924B4 (en) | 2018-03-01 |
Family
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Family Applications (1)
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DE102005058924.3A Active DE102005058924B4 (en) | 2005-12-09 | 2005-12-09 | Method and device for controlling an irreversible safety device in a motor vehicle |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102010005408A1 (en) * | 2010-01-22 | 2011-07-28 | Bayerische Motoren Werke Aktiengesellschaft, 80809 | Method and device for reducing the consequences of accidents on a vehicle occupant |
DE102014000842A1 (en) * | 2014-01-22 | 2015-07-23 | Audi Ag | Method for controlling a passenger restraint device of a safety system of a vehicle |
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DE19731689A1 (en) | 1997-07-23 | 1999-02-04 | Hs Tech & Design | Device for rolling up a seat belt |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102010005408A1 (en) * | 2010-01-22 | 2011-07-28 | Bayerische Motoren Werke Aktiengesellschaft, 80809 | Method and device for reducing the consequences of accidents on a vehicle occupant |
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DE102014000842A1 (en) * | 2014-01-22 | 2015-07-23 | Audi Ag | Method for controlling a passenger restraint device of a safety system of a vehicle |
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DE102005058924B4 (en) | 2018-03-01 |
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