WO2004069605A1 - Device for testing an occupant classification system that is at least partially built into a vehicle seat - Google Patents

Device for testing an occupant classification system that is at least partially built into a vehicle seat Download PDF

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Publication number
WO2004069605A1
WO2004069605A1 PCT/DE2003/003307 DE0303307W WO2004069605A1 WO 2004069605 A1 WO2004069605 A1 WO 2004069605A1 DE 0303307 W DE0303307 W DE 0303307W WO 2004069605 A1 WO2004069605 A1 WO 2004069605A1
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WO
WIPO (PCT)
Prior art keywords
classification system
occupant classification
seat
signal
test
Prior art date
Application number
PCT/DE2003/003307
Other languages
German (de)
French (fr)
Inventor
Ralf Henne
Martin Schmied
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2004069605A1 publication Critical patent/WO2004069605A1/en

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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
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • 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
    • B60R21/01556—Child-seat detection systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
    • G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus
    • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
    • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
    • G01G23/37—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting
    • G01G23/3728—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means
    • G01G23/3735—Indicating the weight by electrical means, e.g. using photoelectric cells involving digital counting with wireless means using a digital network
    • 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

Definitions

  • Device for checking an occupant classification system that is at least partially installed in a vehicle seat
  • the invention is based on a device for checking an occupant classification system at least partially installed in a vehicle seat according to the preamble of the independent patent claim.
  • the device according to the invention for checking an occupant classification system at least partially installed in a vehicle seat with the features of the independent claim has the advantage that the device according to the invention enables the checking of occupant classification systems based on pressure or force profiles in series production in a simple manner.
  • the device can be used both automatically and manually. It enables the functionality of the occupant classification system to be checked quickly by comparing an applied pressure with the signal of the occupant classification system. Depending on this, a signal is generated which, for example, outputs whether the occupant classification system is OK or not. However, a number of errors or a specification of deviations are also possible here. All in all, this makes a 100% inspection of the occupant classification system at the end of the belt in seat production easier and cheaper. These individual seats do not have to go through test gates.
  • the measures and further developments listed in the dependent claims permit advantageous improvements of the device for checking an occupant classification system that is at least partially installed in a vehicle seat.
  • the device is configured for manual use.
  • a corresponding processor can thus carry out the final test with simple handling using the device according to the invention, which is configured as a small hand-held test device and has a suitable test form for the respective system to be tested.
  • This handheld tester can be used with a cable, but also with a
  • the processor then begins to press the hand test specimen into the seat at the prescribed position of the seat.
  • the test device which is equipped with a force measuring system, continuously sends the force with which it is pressed into the seat to the measuring computer. This itself continuously compares the system response of the occupant classification system depending on the impression force with the target values stored in the computer and outputs good or bad at the end of the test.
  • An advantageous extension of the system is that the device according to the invention is additionally provided with an optical display for the processor so that he can recognize a feedback between the applied force or the status of the test. This data is then summarized as operating data.
  • the device has a test form which has at least one elliptical boundary line, so that the device can be pressed into the seat in a simple manner and thus generates a corresponding seat profile.
  • Other shapes are possible here, with an elliptical or circular shape appearing most suitable.
  • FIG. 1 shows the device in use
  • FIG. 2 shows a view of the device according to the invention.
  • the occupant classification is currently carried out with systems that
  • Sensing the vehicle interior Examples include the weight mat, the bladder mat, video or ultrasound systems.
  • serial testing is often not carried out in series production, but only an audit test. If a series test is carried out for these systems, which is probably necessary in view of the increasing accuracy of the systems, especially in connection with the legislation in the USA, this is done with complex and expensive test towers. The use of these test towers is also an important time factor in seat production.
  • a device for checking an occupant classification system which is at least partially installed in a vehicle seat and which enables pressure to be applied to the seat surface and is connected to a computer is proposed is to the signal of the
  • a one-hand tester is preferably used for this purpose, which is connected to the computer and enables the system to be checked by simply pressing on the test head. This leads to a hundred percent check the end-of-line occupant classification system that is simpler and less expensive. The individual seats do not have to go through complex test gates.
  • FIG. 1 shows the device according to the invention in use.
  • a seat 1 has a seat surface 2, onto which the device 3 is pressed with the force F.
  • device 3 has an elliptically delimited lower surface, which generates a defined pressure profile on the seat surface 2 as a function of the force F applied.
  • Parts of the occupant classification system can also be located outside the seat 1, for example if further measuring principles such as ultrasound sensors are used, or an evaluation, that is to say the control unit of the occupant classification system, can be located outside the seat 1.
  • the computer 5 can be connected to the device 3 via radio, infrared or a wired communication link.
  • the device 3 itself has a force measuring device which, in a known manner, measures the pressure exerted by the processor on the seat surface 2. It is also possible to use a machine for this purpose, which presses the device 3 onto the seat 2. Depending on the comparison, the computer 5 then outputs a signal as to whether the occupant classification system is working properly. This signal can be returned to the device 3, which then outputs the result via an optical display. This enables a worker to see whether the occupant classification system is functioning properly in the respective seat. Furthermore, the
  • Computer 5 use setpoints to compare the system response of the occupant classification system 4 and the pressure F applied. This can be done continuously or at predetermined time intervals. If, for example, a processor slowly depresses the device 3 over a certain time, this force-time diagram, which then arises, can be used to make a more precise assessment of the
  • the device 3 may have means to also test a child seat recognition device that is installed in the seat 1. This child seat recognition can be done wirelessly, for example, inductively or via high-frequency signals.
  • the device 3 either has coils or resonators.
  • FIG. 2 shows an embodiment of the device 3 according to the invention.
  • the device 200 has a handle 201 which the worker takes around the device
  • the part 202 of the device 200 also serves as an operating part for pressing in and has either the cable connection or the radio connection to the test computer 5. Furthermore, the device 200 shows the elliptical lower test mold, which is then pressed into the seat 2. In addition, the device 200 has a resonator 203, which can be used to check an automatic child seat recognition.
  • the dimensions of the device 2, the width 220 mm, the length 300 mm and the height 220 mm are typical dimensions that can be used for a device.

Abstract

The invention relates to a device for testing an occupant classification system (4) that is at least partially built into a vehicle seat (1). Said device is configured to exert a pressure (F) on the seat surface (2). The device can be connected to the occupant classification system via a computational unit (5), in such a way that the exerted pressure can be compared with a signal from the occupant classification system and at least one additional signal can be generated, based on the comparison.

Description

Vorrichtung zur Überprüfung eines zumindest teilweise in einem Fahrzeugsitz eingebauten InsassenklassifizierungssystemsDevice for checking an occupant classification system that is at least partially installed in a vehicle seat
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung zur Überprüfung eines zumindest teilweise in einem Fahrzeugsitz eingebauten Insassenklassifizierungssystems nach der Gattung des unabhängigen Patentanspruchs.The invention is based on a device for checking an occupant classification system at least partially installed in a vehicle seat according to the preamble of the independent patent claim.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung zur Überprüfung eines zumindest teilweise in einem Fahrzeugsitz eingebauten Insassenklassifizierungssystems mit den Merkmalen des unabhängigen Patentanspruchs hat den Vorteil, dass die erfindungsgemäße Vorrichtung die Überprüfung von Insassenklassifizierungssystemen, die auf Druck- bzw. Kraftprofilen basieren, in der Serienfertigung in einfacher Weise ermöglicht. Die erfindungsgemäßeThe device according to the invention for checking an occupant classification system at least partially installed in a vehicle seat with the features of the independent claim has the advantage that the device according to the invention enables the checking of occupant classification systems based on pressure or force profiles in series production in a simple manner. The invention
Vorrichtung kann sowohl automatisch als auch manuell eingesetzt werden. Sie ermöglicht die schnelle Überprüfung der Funktionsfähigkeit des Insassenklassifizierungssystems durch den Vergleich eines beaufschlagten Drucks mit dem Signal des Insassenklassifizierungssystems. In Abhängigkeit davon wird ein Signal erzeugt, das beispielsweise ausgibt, ob das Insassenklassifizierungssystem in Ordnung ist oder nicht. Aber auch eine Fehlerzahl oder eine Abweichungsangabe sind hier möglich. Insgesamt wird dadurch eine hundertprozentige Prüfung des Insassenklassifizierungssystems am Bandende in der Sitzproduktion einfacher und kostengünstiger. Diese Einzelsitze müssen nicht aufwändig Prüftore durchlaufen. Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen und Weiterbildungen sind vorteilhafte Verbesserungen der im unabhängigen Patentanspruch angegebenen Vorrichtung zur Überprüfung eines zumindest teilweise in einem Fahrzeugsitz eingebauten Insassenklassifizierungssystems möglich.The device can be used both automatically and manually. It enables the functionality of the occupant classification system to be checked quickly by comparing an applied pressure with the signal of the occupant classification system. Depending on this, a signal is generated which, for example, outputs whether the occupant classification system is OK or not. However, a number of errors or a specification of deviations are also possible here. All in all, this makes a 100% inspection of the occupant classification system at the end of the belt in seat production easier and cheaper. These individual seats do not have to go through test gates. The measures and further developments listed in the dependent claims permit advantageous improvements of the device for checking an occupant classification system that is at least partially installed in a vehicle seat.
Besonders vorteilhaft ist, dass die Vorrichtung zum manuellen Gebrauch konfiguriert ist. Damit kann ein entsprechender Bearbeiter mit der erfindungsgemäßen Vorrichtung, die als ein kleines Handtestgerät konfiguriert ist und eine geeignete Prüfform für das jeweilige zu prüfende System aufweist, durch eine einfache Handhabung die Endprüfung durchführen. Dieses Handtestgerät kann dabei mit einem Kabel, aber auch mit einerIt is particularly advantageous that the device is configured for manual use. A corresponding processor can thus carry out the final test with simple handling using the device according to the invention, which is configured as a small hand-held test device and has a suitable test form for the respective system to be tested. This handheld tester can be used with a cable, but also with a
Funk- oder Infrarotverbindung mit dem jeweiligen Prüfrechner kommunizieren. Als Funkverbindungen kommen beispielsweise Bluetooth oder andere, vergleichbare Nahbereichskommunikationsverbindungen in Frage. Der Bearbeiter beginnt dann an der vorgeschriebenen Stelle des Sitzes den Handtestprüfkörper in den Sitz zu drücken. Gleichzeitig sendet das Testgerät, welches mit einem Kraftmesssystems ausgestattet ist, die Kraft, mit der es in den Sitz gedrückt wird, kontinuierlich an den Messrechner. Dieser vergleicht selbst kontinuierlich die Systemantwort des Insassenklassifizierungssystems in Abhängigkeit von der Eindrückkraft mit den im Rechner hinterlegten Sollwerten und gibt am Ende der Prüfung gut oder schlecht aus. Zusätzlich ist es noch möglich, gleichzeitig oder zumindest in einem Arbeitsschritt eine automatische Kindersitzerkennung zu überprüfen. Eine vorteilhafte Erweiterung des Systems ist, dass die erfindungsgemäße Vorrichtung zusätzlich mit einer optischen Anzeige für den Bearbeiter versehen ist, sodass er eine Rückkopplung zwischen der aufgebrachten Kraft bzw. dem Status der Prüfung erkennen kann. Diese Daten werden dann als Betriebsdaten zusammengefasst.Communicate radio or infrared connection with the respective test computer. For example, Bluetooth or other comparable short-range communication connections can be used as radio connections. The processor then begins to press the hand test specimen into the seat at the prescribed position of the seat. At the same time, the test device, which is equipped with a force measuring system, continuously sends the force with which it is pressed into the seat to the measuring computer. This itself continuously compares the system response of the occupant classification system depending on the impression force with the target values stored in the computer and outputs good or bad at the end of the test. In addition, it is also possible to check automatic child seat recognition simultaneously or at least in one work step. An advantageous extension of the system is that the device according to the invention is additionally provided with an optical display for the processor so that he can recognize a feedback between the applied force or the status of the test. This data is then summarized as operating data.
Die Vorrichtung weist eine Prüfform auf, die zumindest eine elliptische Begrenzungslinie aufweist, sodass die Vorrichtung in einfacher Weise in den Sitz eindrückbar ist und damit ein entsprechendes Sitzprofil erzeugt. Weitere Formen sind hier möglich, wobei eine elliptische oder Kreisform am geeignetsten erscheinen.The device has a test form which has at least one elliptical boundary line, so that the device can be pressed into the seat in a simple manner and thus generates a corresponding seat profile. Other shapes are possible here, with an elliptical or circular shape appearing most suitable.
Zeichnungdrawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 die Vorrichtung im Einsatz und Figur 2 eine Ansicht der erfindungsgemäßen Vorrichtung.Embodiments of the invention are shown in the drawing and are explained in more detail in the following description. FIG. 1 shows the device in use and FIG. 2 shows a view of the device according to the invention.
Beschreibungdescription
Bei zukünftigen Airbaggenerationen soll laut der amerikanischen Gesetzgebung FMVSS 208 in Abhängigkeit davon, ob sich eine Person oder ein Kind bzw. ein Kindersitz auf dem Beifahrersitz befindet, der Airbag gezielt aktiviert oder deaktiviert werden. Hierzu werden bereits Systeme eingesetzt, die durch einen oder mehrere druckabhängige Sensoren im Sitz anhand von Druckprofil oder Gewicht einen Erwachsenen auf demIn future generations of airbags, according to American legislation FMVSS 208, depending on whether a person or a child or a child seat is in the front passenger seat, the airbag should be activated or deactivated in a targeted manner. For this purpose, systems are already being used which, by means of one or more pressure-dependent sensors in the seat, are based on the pressure profile or weight of an adult on the
Beifahrersitz von einem Kind bzw. von einem Kindersitz unterscheiden können. Da es sich um ein Sicherheitssystem handelt, muss der einwandfreie Einbau des Systems im Sitz gewährleistet sein.Can distinguish front passenger seat from a child or from a child seat. As it is a safety system, the system must be properly installed in the seat.
Aktuell wird die Insassenklassifizierung mit Systemen durchgeführt, die denThe occupant classification is currently carried out with systems that
Fahrzeuginnenraum sensieren. Beispiele hierzu sind die Gewichtsmatte, die Bladdermatte, Video- oder Ultraschallsysteme. Für die Überprüfung des im Beifahrersitz implementierten Insassenklassifizierungssystems wird in der Serienproduktion häufig keine Serienprüfung, sondern nur eine Auditprüfung durchgeführt. Falls eine Serienprüfung für diese Systeme realisiert wird, welche vermutlich im Hinblick auf die zunehmende Genauigkeit der Systeme gerade im Zusammenhang mit der Gesetzgebung in den USA nötig wird, geschieht dies mit aufwändigen und teuren Prüftürmen. Der Einsatz dieser Prüftürme ist auch ein bedeutender Zeitfaktor in der Sitzfertigung.Sensing the vehicle interior. Examples include the weight mat, the bladder mat, video or ultrasound systems. To check the occupant classification system implemented in the front passenger seat, serial testing is often not carried out in series production, but only an audit test. If a series test is carried out for these systems, which is probably necessary in view of the increasing accuracy of the systems, especially in connection with the legislation in the USA, this is done with complex and expensive test towers. The use of these test towers is also an important time factor in seat production.
Erfindungsgemäß wird deshalb zu einer einfachen Überprüfung des korrekten Einbaus bzw. der Erkennungsleistung des im Sitz implementierten Insassenklassifizierungssystems in der Serienproduktion eine Vorrichtung zur Überprüfung eines zumindest teilweise in einem Fahrzeugsitz eingebauten Insassenklassifizierungssystems vorgeschlagen, das die Beaufschlagung eines Drucks auf die Sitzfläche ermöglicht und mit einem Rechner verbunden ist, um das Signal desAccording to the invention, therefore, for a simple check of the correct installation or the recognition performance of the occupant classification system implemented in the seat in series production, a device for checking an occupant classification system which is at least partially installed in a vehicle seat and which enables pressure to be applied to the seat surface and is connected to a computer is proposed is to the signal of the
Insassenklassifizierungssystems mit dem beaufschlagten Druck zu vergleichen, um die Funktionsprüfung durchzuführen. Vorzugsweise wird dazu ein Einhandtester verwendet, der mit dem Rechner verbunden ist und durch ein einfaches Aufdrücken des Prüfkopfs eine Übe riifung des Systems ermöglicht. Dies führt zu einer Hundert-Prozent-Prüfung des Insassenklassifizierungssystems am Bandende, die einfacher und kostengünstiger ist. Die Einzelsitze müssen nicht aufwändige Prüftore durchlaufen.Compare the occupant classification system to the pressure applied to perform the functional test. A one-hand tester is preferably used for this purpose, which is connected to the computer and enables the system to be checked by simply pressing on the test head. This leads to a hundred percent check the end-of-line occupant classification system that is simpler and less expensive. The individual seats do not have to go through complex test gates.
Figur 1 zeigt die erfindungsgemäße Vorrichtung im Einsatz. Ein Sitz 1 weist eine Sitzfläche 2 auf, auf die die Vorrichtung 3 mit der Kraft F aufgedrückt wird. DieFigure 1 shows the device according to the invention in use. A seat 1 has a seat surface 2, onto which the device 3 is pressed with the force F. The
Vorrichtung 3 weist dazu eine elliptisch begrenzte untere Fläche auf, die ein definiertes Druckprofil auf die Sitzfläche 2 in Abhängigkeit von der aufgebrachten Kraft F erzeugt. Das im Sitz 1 eingebaute Insassenklassifizierungssystem 4, das gewichtsbasiert ist, beispielsweise durch Gewichtsmessbolzen oder eine Gewichtsmatte, liefert ein Signal in Abhängigkeit von dem aufgebrachten Gewichtsdruck F und übermittelt dieses Signal an einen Rechner 5, der ebenfalls mit der Vorrichtung 3 verbunden ist. Teile des Insassenklassifizierungssystems können sich auch außerhalb des Sitzes 1 befinden, beispielsweise, wenn weitere Messprinzipien wie Ultraschallsensorik eingesetzt werden, oder auch eine Auswertung, also das Steuergerät des Insassenklassifizierungssystems, kann sich außerhalb des Sitzes 1 befinden. Der Rechner 5 kann mit der Vorrichtung 3 über Funk, Infrarot oder eine leitungsgebundene Kommunikationsverbindung verbunden sein. Bei einer Funkverbindung können Nahbereichsfunkverbindungen wie Bluetooth eingesetzt werden. Die Vorrichtung 3 weist selbst eine Kraftmesseinrichtung auf, die in bekannter Weise den durch den Bearbeiter beaufschlagten Druck auf die Sitzfläche 2 misst. Es ist möglich, hierzu auch eine Maschine zu verwenden, die die Vorrichtung 3 auf die Sitzfläche 2 drückt. Der Rechner 5 gibt dann in Abhängigkeit von dem Vergleich ein Signal aus, ob das Insassenklassifizierungssystem richtig arbeitet. Dieses Signal kann an die Vorrichtung 3 zurückgegeben werden, die dann das Ergebnis über eine optische Anzeige ausgibt. Damit kann ein Arbeiter erkennen, ob das Insassenklassifizierungssystem im jeweiligen Sitz richtig funktioniert. Weiterhin kann derFor this purpose, device 3 has an elliptically delimited lower surface, which generates a defined pressure profile on the seat surface 2 as a function of the force F applied. The occupant classification system 4 installed in the seat 1, which is weight-based, for example by means of weight measuring bolts or a weight mat, delivers a signal depending on the applied weight pressure F and transmits this signal to a computer 5, which is also connected to the device 3. Parts of the occupant classification system can also be located outside the seat 1, for example if further measuring principles such as ultrasound sensors are used, or an evaluation, that is to say the control unit of the occupant classification system, can be located outside the seat 1. The computer 5 can be connected to the device 3 via radio, infrared or a wired communication link. With a radio connection, short-range radio connections such as Bluetooth can be used. The device 3 itself has a force measuring device which, in a known manner, measures the pressure exerted by the processor on the seat surface 2. It is also possible to use a machine for this purpose, which presses the device 3 onto the seat 2. Depending on the comparison, the computer 5 then outputs a signal as to whether the occupant classification system is working properly. This signal can be returned to the device 3, which then outputs the result via an optical display. This enables a worker to see whether the occupant classification system is functioning properly in the respective seat. Furthermore, the
Rechner 5 Sollwerte verwenden, um einen Abgleich der Systemantwort des Insassenklassifizierungssystems 4 und des aufgebrachten Drucks F herzustellen. Dies kann kontinuierlich erfolgen oder in vorgegebenen Zeitintervallen. Wird beispielsweise ein Bearbeiter die Vorrichtung 3 über eine bestimmte Zeit langsam eindrücken, kann über dieses Kraft-Zeit-Diagramm, das dann entsteht, eine genauere Beurteilung derComputer 5 use setpoints to compare the system response of the occupant classification system 4 and the pressure F applied. This can be done continuously or at predetermined time intervals. If, for example, a processor slowly depresses the device 3 over a certain time, this force-time diagram, which then arises, can be used to make a more precise assessment of the
Funktionsfähigkeit des Insassenklassifizierungssystems erfolgen, da das Insassenklassifizierungssystem dann bei unterschiedlichen Gewichtsdrücken reagiert. Zusätzlich ist es möglich, dass die Vorrichtung 3 Mittel aufweist, um auch eine Kindersitzerkennung, die im Sitz 1 eingebaut ist, zu prüfen. Diese Kindersitzerkennung kann beispielsweise drahtlos erfolgen, induktiv oder über Hochfrequenzsignale. Dazu weist dann die Vorrichtung 3 entweder Spulen oder Resonatoren auf.Functionality of the occupant classification system take place because the occupant classification system then reacts at different weight pressures. In addition, it is possible for the device 3 to have means to also test a child seat recognition device that is installed in the seat 1. This child seat recognition can be done wirelessly, for example, inductively or via high-frequency signals. For this purpose, the device 3 either has coils or resonators.
Figur 2 zeigt eine Ausfuhrungsform der erfindungsgemäßen Vorrichtung 3. Die Vorrichtung 200 weist einen Griff 201 auf, den der Arbeiter nimmt, um die VorrichtungFIG. 2 shows an embodiment of the device 3 according to the invention. The device 200 has a handle 201 which the worker takes around the device
200 auf die Sitzfläche 2 zu drücken. Der Teil 202 der Vorrichtung 200 dient ebenfalls als Bedienteil zum Eindrücken und weist entweder die Kabelverbindung oder die Funkverbindung zum Prüfrechner 5 auf. Weiterhin zeigt die Vorrichtung 200 die elliptische untere Prüfform, die dann in die Sitzfläche 2 eingedrückt wird. Darüber hinaus weist die Vorrichtung 200 einen Resonator 203 auf, der zur Überprüfung einer automatischen Kindersitzerkennung verwendbar ist. Die Bemaßung der Vorrichtung 2, die Breite 220 mm, die Länge 300 mm und die Höhe 220 mm sind typische Maße, die für eine Vorrichtung verwendbar sind. 200 to press the seat 2. The part 202 of the device 200 also serves as an operating part for pressing in and has either the cable connection or the radio connection to the test computer 5. Furthermore, the device 200 shows the elliptical lower test mold, which is then pressed into the seat 2. In addition, the device 200 has a resonator 203, which can be used to check an automatic child seat recognition. The dimensions of the device 2, the width 220 mm, the length 300 mm and the height 220 mm are typical dimensions that can be used for a device.

Claims

Patentansprüche claims
1. Vorrichtung zur Überprüfung eines zumindest teilweise in einem Fahrzeugsitz (1) eingebauten Insassenklassifizierungssystems (4), wobei die Vorrichtung (3, 200) zur Beaufschlagung eines Drucks (F) auf die Sitzfläche (2) konfiguriert ist und über einen Rechner (5) mit dem Insassenklassifizierungssystem (4) derart verbindbar ist, dass der beaufschlagte Druck (F) mit wenigstens einem ersten Signal von dem Insassenklassifizierungssystem (4) vergleichbar ist und in Abhängigkeit von dem Vergleich wenigstens ein zweites Signal erzeugbar ist.1. Device for checking an occupant classification system (4) that is at least partially installed in a vehicle seat (1), the device (3, 200) being configured to apply pressure (F) to the seat surface (2) and via a computer (5) can be connected to the occupant classification system (4) in such a way that the pressure applied (F) can be compared with at least one first signal from the occupant classification system (4) and at least one second signal can be generated as a function of the comparison.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Vorrichtung (3, 200) zum manuellen Gebrauch konfiguriert ist.2. Device according to claim 1, characterized in that the device (3, 200) is configured for manual use.
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Prüfform der Vorrichtung (3, 200), die auf die Sitzfläche (2) drückbar ist, an das Insassenklassifizierungssystem (4) angepasst ist.3. Device according to claim 1 or 2, characterized in that a test form of the device (3, 200), which can be pressed onto the seat surface (2), is adapted to the occupant classification system (4).
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Prüf form eine zumindest elliptische Begrenzungslinie aufweist.4. The device according to claim 3, characterized in that the test form has an at least elliptical boundary line.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung ein Kraftmesssystem zur Ermittlung des beaufschlagten Drucks (F) aufweist. 5. Device according to one of the preceding claims, characterized in that the device has a force measuring system for determining the applied pressure (F).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Vorrichtung (3, 200) zu einem kontinuierlichen Vergleich des beaufschlagten Drucks (F) mit dem wenigstens ersten Signal konfiguriert ist.6. The device according to claim 5, characterized in that the device (3, 200) is configured for a continuous comparison of the applied pressure (F) with the at least first signal.
7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (3, 200) mit dem Rechner (5) drahtlos zur Signalübertragung verbunden ist.7. Device according to one of the preceding claims, characterized in that the device (3, 200) with the computer (5) is wirelessly connected for signal transmission.
8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (3, 200) eine Anzeige zur Ausgabe von Betriebsdaten aufweist.8. Device according to one of the preceding claims, characterized in that the device (3, 200) has a display for output of operating data.
9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (3, 200) zusätzlich zur Überprüfung einer automatischen Kindersitzerkennung konfiguriert ist.9. Device according to one of the preceding claims, characterized in that the device (3, 200) is additionally configured for checking an automatic child seat recognition.
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Vorrichtung zur automatischen Kindersitzerkennung wenigstens einen Resonator (203) aufweist. 10. The device according to claim 9, characterized in that the device for automatic child seat recognition has at least one resonator (203).
PCT/DE2003/003307 2003-01-31 2003-10-06 Device for testing an occupant classification system that is at least partially built into a vehicle seat WO2004069605A1 (en)

Applications Claiming Priority (2)

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DE10303794.2 2003-01-31
DE2003103794 DE10303794A1 (en) 2003-01-31 2003-01-31 Device for checking an occupant classification system that is at least partially installed in a vehicle seat

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3812737A1 (en) * 2019-10-21 2021-04-28 Audi AG Method for functional testing of a seat occupancy detection system of a vehicle seat

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132110A1 (en) * 2000-07-05 2002-02-14 Denso Corp Method for calibrating the sensitivity of pressure sensing cells in a vehicle passenger seat
US6443488B1 (en) * 1997-09-09 2002-09-03 Siemens Aktiengesellschaft Device for protecting vehicle occupants in a motor vehicle and method for controlling the inflation of an airbag in a motor vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443488B1 (en) * 1997-09-09 2002-09-03 Siemens Aktiengesellschaft Device for protecting vehicle occupants in a motor vehicle and method for controlling the inflation of an airbag in a motor vehicle
DE10132110A1 (en) * 2000-07-05 2002-02-14 Denso Corp Method for calibrating the sensitivity of pressure sensing cells in a vehicle passenger seat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3812737A1 (en) * 2019-10-21 2021-04-28 Audi AG Method for functional testing of a seat occupancy detection system of a vehicle seat

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