DE10358110A1 - Motor vehicle`s front impact sensing assembly, has control unit emitting actuation signal to vehicle safety equipment if acceleration or speed signal, generated by upfront sensor, exceeds given threshold of defined accident gravity - Google Patents
Motor vehicle`s front impact sensing assembly, has control unit emitting actuation signal to vehicle safety equipment if acceleration or speed signal, generated by upfront sensor, exceeds given threshold of defined accident gravity Download PDFInfo
- Publication number
- DE10358110A1 DE10358110A1 DE10358110A DE10358110A DE10358110A1 DE 10358110 A1 DE10358110 A1 DE 10358110A1 DE 10358110 A DE10358110 A DE 10358110A DE 10358110 A DE10358110 A DE 10358110A DE 10358110 A1 DE10358110 A1 DE 10358110A1
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- Germany
- Prior art keywords
- signal
- vehicle
- sensor
- acceleration
- control unit
- 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
- B60R21/013—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 collisions, impending collisions or roll-over
- B60R21/0132—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 collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
-
- 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
- B60R21/013—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 collisions, impending collisions or roll-over
- B60R21/0136—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 collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
-
- 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
- B60R2021/01122—Prevention of malfunction
- B60R2021/01184—Fault detection or diagnostic circuits
- B60R2021/0119—Plausibility check
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft eine Anordnung zur Sensierung eines Frontaufpralls eines Kraftfahrzeuges gemäß der im Oberbegriff des Patentanspruches 1 näher definierten Art eine Anordnung zur Sensierung eines Frontaufpralls eines Kraftfahrzeuges gemäß der im Oberbegriff des Patentanspruches 1 näher definierten Art.The The invention relates to an arrangement for sensing a frontal impact a motor vehicle according to the im Preamble of claim 1 further defined type an arrangement for sensing a frontal impact of a motor vehicle according to the Preamble of claim 1 further defined type.
In heutigen Kraftfahrzeugen werden zahlreiche aktive und passive Sicherheitseinrichtungen eingesetzt, um die Unfallfolgen für einen Fahrzeuginsassen und gegebenenfalls einen Unfallpartner zu mildern. Zum Auslösen von derartigen Sicherheitseinrichtungen, wie z. B. Rückhaltemitteln in Form von Gurtstraffern, Airbags etc., sieht der Stand der Technik sowohl mechanische als auch elektrische Sensoren vor, welche hauptsächlich auf der Basis von Verformung oder Beschleunigung eine Crash-Situation von normalen Fahrbedingungen unterscheiden.In Today's motor vehicles are numerous active and passive safety devices used to determine the consequences of an accident for a vehicle occupant and if necessary mitigate an accident partner. To trigger Such safety devices, such. B. restraints in the form of belt tensioners, Airbags etc., the state of the art sees both mechanical as also electrical sensors, which mainly based on deformation or acceleration a crash situation of normal driving conditions differ.
Je nach Anordnung der Sensoren am Fahrzeug und ihrer Ausgestaltung, können diese zur Ansteuerung von vorbeugenden Maßnahmen, welche vor einem Unfall ergriffen werden, und akuten Maßnahmen, welche nach einem erkannten Unfall ergriffen wer den, genützt werden, wobei je nach Aufprallart, wie z. B. Frontaufprall oder Seitenaufprall, unterschieden werden kann.ever after arrangement of the sensors on the vehicle and their design, can These are used to control preventive measures taken before an accident be taken and acute measures, which are seized after a recognized accident, the benefits, depending on Aufprallart such. B. frontal impact or side impact, distinguished can be.
Eine
Anordnung zur Sensierung eines Frontaufpralls bei einem Fahrzeug
ist aus der
Weiterhin ist es aus der Praxis bekannt, Upfront-Sensoren mit einer an einen Längsträger des Fahrzeugs angebundenen Crash-Box oder einer so genannten Z-Strebe, welche mit den Längsträgern oder einer solchen Crash-Box verschraubt ist, zu verbinden.Farther It is known from practice, upfront sensors with one to one Side member of the vehicle tailed crash box or a so-called Z-strut, which with the side members or bolted to such a crash box is to connect.
Nachteilhafterweise sind derartige Strukturen im oberen Bereich eines Frontmoduls eines Kraftfahrzeuges relativ labil, womit die Anbringung von Upfront-Sensoren an solchen Strukturen nachteilhafterweise eine große Streuung der Signale der Upront-Sensoren zur Folge hat. Hieraus ergibt sich, dass eine Deformationsgeschwindigkeit eines vordersten Frontmoduls, welche ein starker Indikator für die Unfallschwere ist, mangels ausreichend reproduzierbarer Signale erst zu einem vergleichsweise späten Zeitpunkt mit einer für die Aktivierung von Sicherheitseinrichtungen erforderlichen Sicherheit be stimmt werden kann. Die Aktivierung der Sicherheitseinrichtungen benötigt somit ein Zeitfenster, welches gegebenenfalls nachteilig für die Sicherheit der Unfallpartner sein kann.Disadvantageously Such structures are in the upper region of a front module of a Motor vehicle relatively unstable, bringing the attachment of Upfront sensors disadvantageously, such a large scattering on such structures the signals of Upront sensors result. It follows that a deformation rate of a frontmost front module, which a strong indicator of the Accident severity is, in the absence of sufficiently reproducible signals only to a comparatively late one Time with a for the activation of safety devices required safety be true. Activation of safety devices needed thus a time window, which may be detrimental to safety the accident partner can be.
Es ist daher Aufgabe der vorliegenden Erfindung, eine Anordnung zur Sensierung eines Frontaufpralls eines Fahrzeugs zu schaffen, mit der eine schnelle und situationsgerechte Auslösung von Sicherheitssystemen bei einer Verunfallung des Kraftfahrzeuges ermöglicht wird.It is therefore an object of the present invention, an arrangement for Sensing a frontal impact of a vehicle to create, with the fast and situation-appropriate triggering of security systems is made possible in an accident of the motor vehicle.
Erfindungsgemäß wird diese Aufgabe mit einer Anordnung zur Sensierung eines Frontaufpralls gemäß den kennzeichnenden Merkmalen des Patentanspruches 1 gelöst.According to the invention this Task with an arrangement for sensing a frontal impact according to the characterizing Characteristics of claim 1 solved.
Mit der Anordnung des wenigstens einen Upfront-Sensors an einem sich im Bereich eines vorderen Stoßfängers über die Fahrzeugbreite erstreckenden hochstabilen Querträger bzw. Biegeträger des Kraftfahrzeuges werden frühere und reproduzierbare Signale zur Verfügung gestellt, wobei aufgrund der geringen Streuung der Signale eine hinreichend sichere Ermittlung der Deformationsgeschwindigkeit ohne Verwendung von vorausschauender Sensorik zu einem sehr frühen Zeitpunkt in einem Crashablauf möglich ist. Somit erlaubt es die Erfindung, dass mit einer hohen Auslösequalität beispielsweise aufgrund der Relativgeschwindigkeit zu dem Kollisionspartner bzw. der hieraus abgeleiten Unfallschwere eine schnellstmögliche und situationsgerechte Auslösung der jeweils vorgesehenen Sicherheitseinrichtungen erfolgt.With the arrangement of the at least one upfront sensor on a in the area of a front bumper over the Vehicle width extending highly stable cross member or bending beam of the Motor vehicles become earlier and reproducible signals provided, due to the low scattering of the signals a sufficiently secure determination the deformation speed without using predictive Sensor technology at a very early Time possible in a crash sequence is. Thus, the invention allows that with a high triggering quality, for example due to the relative speed to the collision partner or the resulting accident severity a fastest possible and situation-appropriate release of the respectively provided safety devices takes place.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstandes nach der Erfindung sind den Patentansprüchen, der Beschreibung und der Zeichnung entnehmbar.Further Advantages and advantageous embodiments of the subject to The invention are the claims, the description and Removable from the drawing.
Ein Ausführungsbeispiel einer erfindungsgemäßen Anordnung von Upfront-Sensoren zur Sensierung eines Frontaufpralls eines Kraftfahrzeuges ist in der Zeichnung näher dargestellt und wird in der nachfolgenden Beschreibung näher erläutert.One embodiment an inventive arrangement of Upfront sensors for sensing a frontal impact of a motor vehicle closer in the drawing and will be explained in more detail in the following description.
Die einzige Figur der Zeichnung zeigt eine Prinzipskizze mit einer schematisierten Draufsicht auf ein Kraftfahrzeug und einem vereinfachten Blockschaltbild einer erfindungsgemäßen Anordnung zur Sensierung eines Frontaufpralls des Kraftfahrzeuges.The single figure of the drawing shows a schematic diagram with a schematic Top view of a motor vehicle and a simplified block diagram an inventive arrangement for sensing a frontal impact of the motor vehicle.
Wie
der Zeichnung zu entnehmen ist, weist ein Kraftfahrzeug
Bei
der gezeigten Ausführung
umfasst die Aufprallsensorik
Neben
dieser zentralen Sensoreinrichtung
Im
vorliegenden Fall sind mehrere dezentrale Upfront-Sensoren
Bei
der gezeigten Anordnung sind die dezentralen Upfront-Sensoren
Die
Upfront-Sensoren
Aus
einer mittleren Steigung der Relativgeschwindigkeit zu dem Kollisionsobjekt
oder dem gemittelten Beschleunigungssignal kann auf die Unfallschwere
geschlossen werden, wenn z. B. Klassen für eine Unfallschwere jeweils
einer definierten Schwelle für
das Beschleunigungssignal und das Geschwindigkeitssignal zugeordnet
werden. Wenn das Beschleunigungssignal oder das Geschwindigkeitssignal
eine solche vorgegebene Schwelle überschreitet, wird nach einem
in dem Steuergerät
Die
Auswahl der aktivierten Sicherheitseinrichtungen
Zur
Gewährleistung
einer hohen Zuverlässigkeit
der Plausibilitätsentscheidung
ist es vorteilhaft, wenn eine logische ODER-Verknüpfung eines Beschleunigungs-
und Geschwindigkeitssignals der Upfront-Sensoren
Je nach Anwendungsfall kann der Fachmann jedoch auch eine UND-Verknüpfung für bestimmte Größen vorsehen.Depending on the application, the subject but also provide an AND link for certain sizes.
Wenngleich bei dem beschriebenen bevorzugten Ausführungsbeispiel Beschleunigungssensoren als Upfront-Sensoren 10 zum Einsatz kommen, ist es in weiteren Ausführungen der erfindungsgemäßen Anordnung selbstverständlich möglich, alternativ oder zusätzlich Upfront-Sensoren vorzusehen, welche als Dehnungssensoren, Druck- oder Temperatursensoren ausgebildet sind.Although in the described preferred embodiment, acceleration sensors come as an up-front sensors 10 are used, it is in other embodiments the inventive arrangement Of course possible, alternatively or additionally Upfront sensors to be used as strain sensors, pressure or temperature sensors are formed.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10358110A DE10358110A1 (en) | 2003-12-12 | 2003-12-12 | Motor vehicle`s front impact sensing assembly, has control unit emitting actuation signal to vehicle safety equipment if acceleration or speed signal, generated by upfront sensor, exceeds given threshold of defined accident gravity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10358110A DE10358110A1 (en) | 2003-12-12 | 2003-12-12 | Motor vehicle`s front impact sensing assembly, has control unit emitting actuation signal to vehicle safety equipment if acceleration or speed signal, generated by upfront sensor, exceeds given threshold of defined accident gravity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10358110A1 true DE10358110A1 (en) | 2005-07-14 |
Family
ID=34672631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10358110A Ceased DE10358110A1 (en) | 2003-12-12 | 2003-12-12 | Motor vehicle`s front impact sensing assembly, has control unit emitting actuation signal to vehicle safety equipment if acceleration or speed signal, generated by upfront sensor, exceeds given threshold of defined accident gravity |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10358110A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009034920A1 (en) * | 2009-07-28 | 2011-02-10 | GM Global Technology Operations, Inc., Detroit | Trigger sensor system for occupant protection system of motor vehicle, has evaluation and control unit controlling occupant protection system depending on evaluated sensor data, where contact sensors are used as assistance sensors |
| US9260072B2 (en) * | 2014-03-26 | 2016-02-16 | Ford Global Technologies, Llc | Pedestrian protection sensing system for vehicle having metal bumpers |
Citations (13)
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|---|---|---|---|---|
| DE19581772T1 (en) * | 1994-09-29 | 1997-08-21 | Autolive Dev Ab | Security arrangement |
| DE19844149A1 (en) * | 1997-09-25 | 1999-04-01 | Mazda Motor | Airbag system as extended retention system for safety belt arrangements |
| DE10027192A1 (en) * | 1999-06-03 | 2001-03-01 | Airbag Systems Co Ltd | Control device for a device for occupant protection |
| WO2002004257A1 (en) * | 2000-07-07 | 2002-01-17 | Siemens Aktiengesellschaft | Passenger restraint system for a motor vehicle |
| DE10033907A1 (en) * | 2000-07-12 | 2002-01-24 | Bosch Gmbh Robert | Procedure for determining the severity of a front impact |
| DE10084602T1 (en) * | 2000-03-17 | 2002-04-11 | Mitsubishi Electric Corp | Collision detection procedure and passive safety device |
| WO2002042571A1 (en) | 2000-11-21 | 2002-05-30 | Shiquan Qi | A toilet with a dredgeing mouth |
| DE10109043C1 (en) * | 2001-02-24 | 2002-07-25 | Bosch Gmbh Robert | Automobile passenger airbag release method has second release stage of 2-stage release dependent on at least 2 acceleration sensor criteria |
| DE10134331C1 (en) * | 2001-07-14 | 2002-10-10 | Bosch Gmbh Robert | Controlling triggering of passive safety system involves detecting impact speed from time difference between start of impact, transition of acceleration from low to higher acceleration |
| DE10138764C1 (en) * | 2001-06-06 | 2002-10-31 | Bosch Gmbh Robert | Frontal impact detection system for use on motor vehicle uses forward-mounted longitudinal acceleration sensor and rearward-mounted longitudinal and lateral acceleration sensor |
| DE10142925C1 (en) * | 2001-09-01 | 2002-11-28 | Daimler Chrysler Ag | Automobile passenger restraint system release method, uses evaluation of sensor signals differently weighted ahead and after unreliability time point |
| DE10152805A1 (en) * | 2001-10-25 | 2003-05-08 | Daimler Chrysler Ag | Triggering protective system in motor vehicle, involves triggering system if accident contact sensor detects collision and irreversible restraining device is not triggered after definable period |
| DE10244095A1 (en) * | 2002-09-23 | 2004-04-01 | Robert Bosch Gmbh | Arrangement for actuating restraint devices |
-
2003
- 2003-12-12 DE DE10358110A patent/DE10358110A1/en not_active Ceased
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19581772T1 (en) * | 1994-09-29 | 1997-08-21 | Autolive Dev Ab | Security arrangement |
| DE19844149A1 (en) * | 1997-09-25 | 1999-04-01 | Mazda Motor | Airbag system as extended retention system for safety belt arrangements |
| DE10027192A1 (en) * | 1999-06-03 | 2001-03-01 | Airbag Systems Co Ltd | Control device for a device for occupant protection |
| DE10084602T1 (en) * | 2000-03-17 | 2002-04-11 | Mitsubishi Electric Corp | Collision detection procedure and passive safety device |
| WO2002004257A1 (en) * | 2000-07-07 | 2002-01-17 | Siemens Aktiengesellschaft | Passenger restraint system for a motor vehicle |
| DE10033907A1 (en) * | 2000-07-12 | 2002-01-24 | Bosch Gmbh Robert | Procedure for determining the severity of a front impact |
| WO2002042571A1 (en) | 2000-11-21 | 2002-05-30 | Shiquan Qi | A toilet with a dredgeing mouth |
| DE10109043C1 (en) * | 2001-02-24 | 2002-07-25 | Bosch Gmbh Robert | Automobile passenger airbag release method has second release stage of 2-stage release dependent on at least 2 acceleration sensor criteria |
| DE10138764C1 (en) * | 2001-06-06 | 2002-10-31 | Bosch Gmbh Robert | Frontal impact detection system for use on motor vehicle uses forward-mounted longitudinal acceleration sensor and rearward-mounted longitudinal and lateral acceleration sensor |
| DE10134331C1 (en) * | 2001-07-14 | 2002-10-10 | Bosch Gmbh Robert | Controlling triggering of passive safety system involves detecting impact speed from time difference between start of impact, transition of acceleration from low to higher acceleration |
| DE10142925C1 (en) * | 2001-09-01 | 2002-11-28 | Daimler Chrysler Ag | Automobile passenger restraint system release method, uses evaluation of sensor signals differently weighted ahead and after unreliability time point |
| DE10152805A1 (en) * | 2001-10-25 | 2003-05-08 | Daimler Chrysler Ag | Triggering protective system in motor vehicle, involves triggering system if accident contact sensor detects collision and irreversible restraining device is not triggered after definable period |
| DE10244095A1 (en) * | 2002-09-23 | 2004-04-01 | Robert Bosch Gmbh | Arrangement for actuating restraint devices |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009034920A1 (en) * | 2009-07-28 | 2011-02-10 | GM Global Technology Operations, Inc., Detroit | Trigger sensor system for occupant protection system of motor vehicle, has evaluation and control unit controlling occupant protection system depending on evaluated sensor data, where contact sensors are used as assistance sensors |
| US9260072B2 (en) * | 2014-03-26 | 2016-02-16 | Ford Global Technologies, Llc | Pedestrian protection sensing system for vehicle having metal bumpers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: SCHNABEL, ALFRED, DIPL.-ING., 75382 ALTHENGSTE, DE Owner name: WAGNER, ALFRED, DIPL.-ING., 72810 GOMARINGEN, DE |
|
| 8110 | Request for examination paragraph 44 | ||
| 8110 | Request for examination paragraph 44 | ||
| R016 | Response to examination communication | ||
| R084 | Declaration of willingness to licence | ||
| R084 | Declaration of willingness to licence |
Effective date: 20141115 |
|
| R002 | Refusal decision in examination/registration proceedings | ||
| R003 | Refusal decision now final |