DE102005058924B4 - Method and device for controlling an irreversible safety device in a motor vehicle - Google Patents
Method and device for controlling an irreversible safety device in a motor vehicle Download PDFInfo
- Publication number
- DE102005058924B4 DE102005058924B4 DE102005058924.3A DE102005058924A DE102005058924B4 DE 102005058924 B4 DE102005058924 B4 DE 102005058924B4 DE 102005058924 A DE102005058924 A DE 102005058924A DE 102005058924 B4 DE102005058924 B4 DE 102005058924B4
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- Prior art keywords
- safety device
- algorithm
- belt
- data
- reversible
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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
- B60R21/01—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
- Air Bags (AREA)
Abstract
Verfahren zur Steuerung wenigstens einer irreversiblen Sicherheitseinrichtung (18, 20) in einem Kraftfahrzeug, wobei die Steuerung unter Einbeziehung von Daten wenigstens einer reversiblen Sicherheitseinrichtung (10) erfolgt, und wobei ein Auslösealgorithmus für die irreversible Sicherheitseinrichtung (18, 20) vorgesehen ist, in den die Daten der reversiblen Sicherheitseinrichtung (10) einfließen, dadurch gekennzeichnet, dass die Daten der reversiblen Sicherheitseinrichtung (10) zeitunabhängig erfasst werden, und dass die Entscheidung über die Auslösung der irreversiblen Sicherheitseinrichtung (18, 20) mit Hilfe eines Algorithmus getroffen wird, der einen Frontalaufprall erkennt und die berechnete Beschleunigung des Fahrzeuginsassen (14) einbezieht.Method for controlling at least one irreversible safety device (18, 20) in a motor vehicle, the control taking place taking into account data of at least one reversible safety device (10), and wherein a triggering algorithm for the irreversible safety device (18, 20) is provided in the the data of the reversible safety device (10) are incorporated, characterized in that the data of the reversible safety device (10) are detected independently of time, and that the decision on the triggering of the irreversible safety device (18, 20) is made with the aid of an algorithm which includes a Detects frontal impact and the calculated acceleration of the vehicle occupant (14) involves.
Description
Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zur Steuerung wenigstens einer irreversiblen Sicherheitseinrichtung in einem Kraftfahrzeug.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 today are equipped with various safety devices. The safety devices can be subdivided into irreversible systems, which are not functional again after a single release, and reversible systems, which can be restored to an initial state after the end of a dangerous situation. The irreversible safety devices include z. B. airbag systems or pyrotechnic belt tensioners. A reversible safety device can, for. B. a seat belt system with an electric belt retractor, which has a Vorstraffunktion.
Aus der gattungsgemäßen
Die ebenfalls gattungsgemäße
Die
Eine ähnliche Steuerung ist aus der
Auch die
Schließlich zeigen auch die
Aufgabe der Erfindung ist es, die Kriterien für die Auslösung irreversibler Sicherheitseinrichtungen in einem Kraftfahrzeug zu verbessern.The object of the invention is to improve the criteria for triggering irreversible safety devices in 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, wobei die Daten der reversiblen Sicherheitseinrichtung zeitunabhängig erfasst werden, und die Entscheidung über die Auslösung der irreversiblen Sicherheitseinrichtung mit Hilfe eines Algorithmus getroffen wird, der einen Frontalaufprall erkennt und die berechnete Beschleunigung des Fahrzeuginsassen einbezieht. 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 by a method of the type mentioned, in which the control of at least one irreversible safety device involving data at least one reversible safety device takes place, the data of the reversible safety device are detected independently of time, and the decision on the triggering of the irreversible safety device Help is made of an algorithm that detects a frontal impact and involves the calculated acceleration of the vehicle occupant. So far, it is only known to recognize by means of suitable sensors critical driving situations or the severity of an impact and to initiate accordingly reversible or irreversible protective measures. The basic idea of the invention, however, is to evaluate certain data of a reversible safety device present in the vehicle and to incorporate it in the control of the irreversible safety device. This data may be used instead of or in addition to other vehicle sensor data. As a result, an extension of the criteria for the control of the irreversible safety device for optimal protection of the vehicle occupants is possible.
Für die Aktivierung der irreversiblen Sicherheitseinrichtung ist dabei ein Auslösealgorithmus vorgesehen, in den die Daten der reversiblen Sicherheitseinrichtung einfließen.For the activation of the irreversible safety device, a triggering algorithm is provided in which the data of the reversible safety device are incorporated.
Dieser Auslösealgorithmus bestimmt 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.This triggering algorithm also determines the type of control of the irreversible safety device when triggered. Thus, taking into account the data of the reversible safety device z. B. a situation-related optimal hardness of an airbag are set, the triggering algorithm performs a corresponding control of the reversible safety device, z. B. by igniting only certain stages of a gas generator or by targeted release of outflow.
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 method according to the invention, the reversible safety device is a safety belt system, in particular with an electric belt retractor. In this case, the data included in the control of the irreversible safety device preferably relates to the webbing extension, 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 will become apparent from the dependent claims.
Die Erfindung schafft auch eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.The invention also provides a device for carrying out the method according to the invention.
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 (11)
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)
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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 DE102005058924A1 (en) | 2007-06-14 |
DE102005058924B4 true DE102005058924B4 (en) | 2018-03-01 |
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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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Families Citing this family (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 |
DE102014000842B4 (en) * | 2014-01-22 | 2016-11-10 | Audi Ag | Method for controlling a passenger restraint device of a safety system of a vehicle |
Citations (17)
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GB2308842A (en) | 1996-01-05 | 1997-07-09 | Tioxide Group Services Ltd | Preparation of anatase titanium dioxide |
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2005
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Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2308842A (en) | 1996-01-05 | 1997-07-09 | Tioxide Group Services Ltd | Preparation of anatase titanium dioxide |
DE19731689A1 (en) | 1997-07-23 | 1999-02-04 | Hs Tech & Design | Device for rolling up a seat belt |
EP0904982A2 (en) | 1997-08-05 | 1999-03-31 | Simon John Ford | Automatic vehicle lighting |
WO2001017825A1 (en) | 1999-09-03 | 2001-03-15 | Siemens Automotive Corporation | Controller for occupant restraint system |
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EP1488960A1 (en) | 2003-06-17 | 2004-12-22 | Ford Global Technologies, LLC | System layout and trigger logic for active pedals |
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DE102005058924A1 (en) | 2007-06-14 |
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