DE10257996A1 - Determination of safety seat belt operation in road vehicle, using camera and sensor to determine position of individual, to provide optimum action of air bag triggering - Google Patents
Determination of safety seat belt operation in road vehicle, using camera and sensor to determine position of individual, to provide optimum action of air bag triggering Download PDFInfo
- Publication number
- DE10257996A1 DE10257996A1 DE2002157996 DE10257996A DE10257996A1 DE 10257996 A1 DE10257996 A1 DE 10257996A1 DE 2002157996 DE2002157996 DE 2002157996 DE 10257996 A DE10257996 A DE 10257996A DE 10257996 A1 DE10257996 A1 DE 10257996A1
- Authority
- DE
- Germany
- Prior art keywords
- occupant
- sensor
- belt
- vehicle
- seat
- 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.)
- Withdrawn
Links
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
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft eine Anordnung und ein Verfahren zur Bestimmung der Gurtlose von Sicherheitsgurten in Fahrzeugen.The invention relates to an arrangement and a method for determining the seat belt slack in vehicles.
Für die Erhöhung der passiven Sicherheit von Fahrzeuginsassen werden in Fahrzeugen unterschiedliche Rückhaltesysteme integriert und aufeinander abgestimmt. Hierzu zählen Sicherheitsgurte, Gurtstraffersysteme und Airbags. Im Falle eines Aufpralls des Fahrzeuges werden die Airbags mit einem Volumen zwischen 35 und ca. 140 Litern mit Hilfe eines Gasgenerators in circa 10 bis 40 Millisekunden aufgeblasen.For the increase The passive safety of vehicle occupants are in vehicles different restraint systems integrated and coordinated. These include seat belts, belt tensioner systems and airbags. In the event of a vehicle impact, the Airbags with a volume between 35 and about 140 liters with the help inflated in about 10 to 40 milliseconds.
Eine optimale Schutzwirkung wird erreicht, wenn der Airbag kurz vor dem Auftreffen des Körpers des Insassen voll aufgeblasen ist. Durch das Auftreffen des Körpers wird die Luft teilweise wieder aus dem porösen oder mit Auslaßöffnungen versehenen Airbag gedrückt und der Insasse somit sanft abgebremst. Neben dem Abfangen der durch die Massenträgheit bedingten Vorlagerung der Insassen soll bei schweren Unfällen das harte Aufschlagen der Insassen auf das Lenkrad bzw. das Armaturenbrett verhindert werden.An optimal protective effect reached when the airbag just before hitting the body of the Occupant is fully inflated. By hitting the body some of the air comes out of the porous or with outlet openings provided airbag pressed and the occupant is braked gently. In addition to intercepting the the inertia Conditional pre-storage of the occupants is said to be in serious accidents hard impact of the occupants on the steering wheel or the dashboard be prevented.
Die optimalste Schutzwirkung könnte hierbei erreicht werden, wenn das Abfangen der Insassen zeitgleich mit der Verzögerung des Fahrzeuges einsetzt. Da dies jedoch nicht möglich ist, erfährt ein Insasse bis zum Auftreffen auf den aufgeblasen Airbag eine mehr oder weniger lange ungebremste Vorverlagerung, in der wertvolle Zeit zum Abbau der Aufprallenergie verstreicht.The best protection could be achieved if the interception of the occupants coincides with the delay of the Vehicle. However, since this is not possible, one learns Occupant until hitting the inflated airbag one more or less long unrestrained advance, in the valuable Time to dissipate the impact energy passes.
Eine erhöhte Schutzwirkung wird erzielt, wenn beim Zünden des Airbags der Zustand des Insassen gegurtet/ungegurtet berücksichtigt wird. Hierzu ist es notwendig diesen Zustand zu erkennen, der mit Hilfe eines Gurtschlossschalters erfaßt und dem Airbag-Steuergerät mitgeteilt wird. Je nach Zustand wird im Falle eines Unfalles der Airbag dann anders gezündet um die Person optimal zu schützen.An increased protective effect is achieved if when igniting of the airbag takes into account the condition of the occupant belted / unbelted becomes. For this it is necessary to recognize this state, which is associated with With the help of a buckle switch detected and communicated to the airbag control unit becomes. Depending on the condition, the airbag will be used in the event of an accident ignited differently to optimally protect the person.
Der Erfindung liegt die Aufgabe zugrunde, eine Anordnung und ein Verfahren zu schaffen, mit denen genaue Informationen über den Anschnallzustand von Insassen gewonnen werden können.The invention has for its object a Arrangement and procedure to create accurate information about the Buckles can be obtained from occupants.
Diese Aufgabe wird gemäß den Merkmalen des Patentanspruchs 1 bzw. 6 gelöst. Somit wird die Gurtlose bei einem angeschnallten Insassen eines Fahrzeuges bestimmt, wobei der Gurt, wenn die Verzögerung des Fahrzeuges einen bestimmten Schwellenwert erreicht, blockiert, und die resultierende Vorverlagerung des Insassen erfaßt wird.This task is performed according to the characteristics of the Claims 1 and 6 solved. Thus, the seat belt is released when a vehicle occupant is buckled up determines the belt when the deceleration of the vehicle a reached certain threshold, blocked, and the resulting Forward displacement of the occupant is detected.
Durch die Bestimmung der Gurtlose können Airbags besser der entstehenden Vorverlagerung des Insassen bei einem Unfall angepaßt werden und/oder, bei Fahrzeugen mit reversiblen Gurtstraffern, die ermittelte Gurtlose schon vor dem Unfall beseitigt werden. Der Insasse erhält in beiden Fällen einen verbesserten Schutz. Gemäß der vorliegenden Erfindung wird ein falsches Anlegen des Gurtes erkannt, insbesondere wenn bedingt durch dicke Kleidung der Gurt nicht direkt am Körper anliegt, was im Falle eines Unfalls zu einer größeren Vorverlagerung des Insassen führt.By determining the strapless can airbags better the resulting forward displacement of the occupant in an accident customized and / or, in vehicles with reversible belt tensioners, the belt loops determined should be eliminated before the accident. The inmate receives in both cases improved protection. According to the present invention incorrect belt application is recognized, especially if due to thick clothing, the belt is not directly against the body, which, in the event of an accident, results in greater displacement of the occupant leads.
Die Verzögerung des Fahrzeuges kann mittels Beschleunigungssensoren und/oder mittels der erfaßten Gurtauszugsgeschwindigkeit bestimmt werden. Die durch die Verzögerung des Fahrzeuges bedingte Vorverlagerung des Insassen in den Sicherheitsgurt kann mittels einer Videokamera, Ultraschallsensoren und/oder im Sitz angeordneter Druckmeßsensoren, die das Druckprofil des Insassen messen, erfaßt werden.The deceleration of the vehicle can by means of acceleration sensors and / or by means of the detected belt pull-out speed be determined. The one caused by the deceleration of the vehicle The occupant can be advanced into the seat belt using a video camera, ultrasonic sensors and / or pressure measurement sensors arranged in the seat, that measure the pressure profile of the occupant can be detected.
Wird neben der Endposition der Vorverlagerung des Insassen auch die Sitzposition zu Beginn der Gurtblockierung erfaßt, ist es möglich, die Gurtlose auch bei einem nicht angelehnten Insassen zu bestimmen.Will be next to the end position of the advance the occupant's seating position at the beginning of the belt locking detected, Is it possible, to determine the seat belt even when the occupant is not ajar.
Die vorliegende Erfindung wird unter Bezug auf die beigefügten Zeichnungen näher erläutert, in denen zeigen:The present invention is under Terms of the attached Drawings closer explains in which show:
Die ermittelten Daten werden zur
Auswertung zu dem Steuergerät
Der Schwellenwert x ist so festgelegt,
daß der
Insasse
Damit auch bei einer leicht vorgebeugten Sitzposition
des Insassen
Ist bereits eine Gurtauszugsgeschwindigkeitssensierung
vorhanden, kann diese zur Verzögerungsmessung
des Fahrzeuges verwendet werden. Hierbei sollte der Schwellenwert
x nicht zu niedrig festgelegt werden, damit nicht bereits ein langsames Vorbeugen
des Insassen
Die in
Unterschreitet dagegen der Verzögerungswert
a während
der Messung der Vorverlagerung den Schwellenwert x, welches im Schritt
S3 abgefragt wird, wird die Gurtblockierung im Schritt S8 aufgehoben
und die Messung im Schritt S9 beendet. Somit wird sicher gestellt,
daß keine
falschen Daten ermittelt werden, da bei einem Unterschreiten des
Schwellenwertes x, zum Beispiel durch ein Wieder-Lösen der
zuvor betätigten
Bremse während
der Messung, der notwendige Einpreßdruck des Insassen
In dem in
- 11
- Insasse,Inmate,
- 22
- Sensor zum Erfassen von Verzögerungen dessensor to detect delays of the
- Fahrzeugs,vehicle
- 33
- Sicherheitsgurt,seatbelt
- 4a, 4B4a, 4B
- Sensor zum Erfassen der Vorverlagerung dessensor to record the advance of the
- Insassen,inmates
- 55
- Steuereinrichtung,Controller,
- 66
- Fahrzeugsitz.Vehicle seat.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002157996 DE10257996A1 (en) | 2002-12-12 | 2002-12-12 | Determination of safety seat belt operation in road vehicle, using camera and sensor to determine position of individual, to provide optimum action of air bag triggering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002157996 DE10257996A1 (en) | 2002-12-12 | 2002-12-12 | Determination of safety seat belt operation in road vehicle, using camera and sensor to determine position of individual, to provide optimum action of air bag triggering |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10257996A1 true DE10257996A1 (en) | 2004-07-01 |
Family
ID=32403788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002157996 Withdrawn DE10257996A1 (en) | 2002-12-12 | 2002-12-12 | Determination of safety seat belt operation in road vehicle, using camera and sensor to determine position of individual, to provide optimum action of air bag triggering |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10257996A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006040244B3 (en) * | 2006-08-28 | 2007-08-30 | Robert Bosch Gmbh | Device for seat occupation recognition has several markings on safety belt at predetermined distance from each other, and has evaluation and control unit to evaluate images recorded by monocamera |
CN104786976A (en) * | 2015-05-15 | 2015-07-22 | 卜风雷 | Automobile front passenger seat airbag control system based on plurality of types of data communication |
-
2002
- 2002-12-12 DE DE2002157996 patent/DE10257996A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006040244B3 (en) * | 2006-08-28 | 2007-08-30 | Robert Bosch Gmbh | Device for seat occupation recognition has several markings on safety belt at predetermined distance from each other, and has evaluation and control unit to evaluate images recorded by monocamera |
CN104786976A (en) * | 2015-05-15 | 2015-07-22 | 卜风雷 | Automobile front passenger seat airbag control system based on plurality of types of data communication |
CN105128804A (en) * | 2015-05-15 | 2015-12-09 | 卜风雷 | Automobile passenger air bag control system based on multi-type data communication |
CN105172735A (en) * | 2015-05-15 | 2015-12-23 | 卜风雷 | Automobile passenger seat airbag control system based on multi-type data communication |
CN104786976B (en) * | 2015-05-15 | 2016-01-06 | 黑龙江大学 | Based on the automobile copilot airbag control system of diversiform data communication |
CN105128804B (en) * | 2015-05-15 | 2016-09-28 | 山东贝格新能源科技有限公司 | Automobile copilot airbag control system based on diversiform data communication |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
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: 20110701 |