EP1034087A1 - Device for detecting pressure exerted upon the seat of a motor vehicle - Google Patents

Device for detecting pressure exerted upon the seat of a motor vehicle

Info

Publication number
EP1034087A1
EP1034087A1 EP99945893A EP99945893A EP1034087A1 EP 1034087 A1 EP1034087 A1 EP 1034087A1 EP 99945893 A EP99945893 A EP 99945893A EP 99945893 A EP99945893 A EP 99945893A EP 1034087 A1 EP1034087 A1 EP 1034087A1
Authority
EP
European Patent Office
Prior art keywords
seat
sensors
sensor
outside
pressure exerted
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.)
Ceased
Application number
EP99945893A
Other languages
German (de)
French (fr)
Inventor
Werner Nitschke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1034087A1 publication Critical patent/EP1034087A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0226—User interfaces specially adapted for seat adjustment
    • B60N2/0228—Hand-activated mechanical switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix
    • 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
    • B60R21/01546—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment using belt buckle sensors

Definitions

  • the invention relates to a device for detecting a pressure exerted on a vehicle seat.
  • Devices of this type are being used to an increasing extent in vehicle construction, in order to realize possibilities for seat occupancy detection. These detection devices are used in particular in luxury vehicles, because a number of different safety and comfort-increasing functions can be coupled to them.
  • DE 196 15 321 mentions a differentiated airbag deployment depending on the seat occupancy as one possibility. It is recognized whether there is an adult or a child or a child seat on the vehicle seat. Other safety devices, such as belt tensioners or roll bar systems, are also controlled with pressure sensor elements integrated in the seat. It is also common to control special seat adjustment functions and safety functions associated with the seat via the pressure exerted passively by a passenger on the seat. Such a system is described in DE 43 39 113, in which, in addition to headrest adjustment and child safety in relation to rear doors and windows, further functions are mentioned, for example lighting and air conditioning functions which can be switched depending on the load acting on the seat .
  • the device according to the invention for detecting a pressure exerted on a vehicle seat has the advantage that at least some of the sensors for pressure detection are arranged outside the seat area and are in direct contact with the body of the passenger. This means that all those vehicle functions can be actively influenced with a pressure sensor system that are only actuated passively with conventional seat occupancy detection. Switches for activating seat adjustment processes as the functions directly assigned to the seat can be very much in this way elegantly and conveniently integrated into the vehicle seat for the passenger.
  • the seat occupancy detection is integrated in a vehicle on a seat film arranged under a seat cover, it is advantageous if the sensors are also integrated into this film outside the seat area that is in direct contact with the body of the passenger. In addition to the advantage of an extremely flat embodiment, this results above all in cost advantages because the production of a larger seat film with more pressure sensors does not represent any significant additional outlay. In the same way, the acquisition and evaluation of the additional pressure pulses via an already existing control unit is not a problem that is reflected in material costs; they can be easily implemented as additional program routines.
  • the sensors are arranged next to one another outside the said seating area on the edge of a seating surface. There is thus an arrangement in the manner of a switch board which the driver or the passenger can access conveniently and in a targeted manner.
  • switches required for seat adjustment By integrating the switches required for seat adjustment into the seat film, additional switches that can be individually assembled and wired can be saved. This not only reduces the assembly effort, it also creates a system that is less susceptible to faults because a large number of contacts and soldering points are eliminated. Likewise, the electronics belonging to the seat adjustment can be integrated into the already existing seat occupancy electronics, which leads overall to a considerable reduction in costs.
  • child seat recognition can be carried out as a further seat-assigned function. This means that the information as to whether a child seat is on the vehicle seat and is engaged in the holder or not can be passed on to the control unit via a pressure sensor and displayed accordingly. This information is especially relevant for a differentiated airbag deployment.
  • a further advantageous variant consists in carrying out the belt buckle condition detection via the pressure sensors integrated in the seat film. This information can thus also be recorded with the device according to the invention and also displayed.
  • a very simple way of connecting the child seat holder and the buckle to the pressure-sensitive areas of the seat film is to use mechanical devices, for example levers or bolts, via which the pressure is transmitted.
  • FIG. 1 shows a seat according to the exemplary embodiment from the side
  • FIG. 2 shows the seat from above in the direction of the arrow A in FIG. 1
  • FIGS. 3 and 4 show the areas III in FIG. 2 in two different states from the side
  • FIG. 5 an enlarged view of area IV in Figure 1.
  • FIG. 1 shows a typical vehicle seat, under the cover 10 of which a seat film 12 is arranged.
  • This seat film 12 is an approximately 1 mm thin film consisting of two layers.
  • the first layer has pressure-sensitive areas, their electrical
  • the second layer with applied conductor tracks which forward the pressure information to a control device 14.
  • the pressure-sensitive areas on the seat film are the sensors 16. In the exemplary embodiment in FIG. 1, these sensors 16 are arranged on the edge of a seat surface 18.
  • the drive means 20 are usually small electric motors, but drive means on a pneumatic or hydraulic basis can also be used.
  • FIG. 2 shows a view of the vehicle seat in the direction of arrow A in FIG. 1.
  • the seat film 12 is no longer explicitly shown in FIG. 2, but it covers the seat surface 18 almost completely, as does the region of the backrest 22 and the headrest 24 shown.
  • the different seating elements can be divided into two areas, which are separated from each other by dashed lines.
  • the enclosed areas 26 represent the seating area which is in direct contact with the body of the passenger.
  • the remaining areas are referred to as the areas 27 outside the seating area which is in direct contact with the body of the passenger.
  • sensors 16.1 and 16.2 can be used to perform a longitudinal adjustment of the seat by actively pressing the points marked with arrows.
  • the height of the vehicle seat is adjusted using the sensors 16.3 and 16.4 arranged directly behind it.
  • the four sensors 16.5 and 16.6 arranged next to one another on the left edge of the seat surface 20 serve to adjust the inclination of the backrest 22, and with the sensors 16.7 and 16.8, the headrest 24 can be adjusted in height.
  • two further sensors 16.9 are placed, which are in contact with two closures 28 of a child seat.
  • FIGS. 3 and 4 A possibility for child seat recognition is shown in FIGS. 3 and 4.
  • Child seat is shaped so that it can snap into a counterpart 30 attached to the vehicle seat and securely connects the two parts to one another.
  • the shape of the closure 28 also enables actuation of a lever 32 which is connected to the counterpart 30 via a spring 34.
  • the pivot point 36 of the lever 32 is located approximately in the center above the sensors 16.91 and 16.92. If the closure 28 - as shown in FIG. 3 - is not connected to the counterpart 30, then the lever 32 presses on the sensor 16.92 due to the force of the spring 34 and loads it (arrow B). No pressure is exerted on sensor 16.91. If you move the closure 28 of the child seat in the direction of arrow C and snap it into the counterpart 30, the lever 32 is pressed in a direction that loads the sensor 16.91 (arrow D) and at the same time relieves the sensor 16.92. It can thus be reliably recognized whether the child seat is attached in accordance with regulations or not. In addition, each of the two child seat states is characterized by two unambiguous sensor states and thus there is a redundant statement about the state of the child seat that is necessary for safety systems.
  • An analogous state detection can be done with the sensor 16.10, which is arranged in the immediate vicinity of a buckle 38, also via mechanical devices carry out.
  • the sensor 16.10 which is arranged in the immediate vicinity of a buckle 38, also via mechanical devices carry out.

Abstract

A device for detecting pressure exerted upon the seat of a motor vehicle, comprising sensors (16) that are disposed on at least one seat element and a control unit that is connected to the sensors (16) and which detects signals emitted by the sensors (16). At least one part of the sensors (16) is arranged outside the seat area (26) that is located in direct contact with the body of the passenger.

Description

Vorrichtung zum Erfassen eines auf einen Fahrzeuαsitz ausgeübten DruckesDevice for detecting a pressure exerted on a vehicle seat
Stand der TechnikState of the art
Die Erfindung betrifft eine Vorrichtung zum Erfassen eines auf einen Fahrzeugsitz ausgeübten Druckes .The invention relates to a device for detecting a pressure exerted on a vehicle seat.
Solche Vorrichtungen werden in zunehmendem Maße im Fahrzeugbau eingesetzt, um damit Möglichkeiten zur Sitzbelegungser- kennung zu realisieren. Besonders bei Fahrzeugen der Oberklasse werden diese Erkennungsvorrichtungen benutzt, weil sich daran eine Reihe verschiedener sicherheits- und komforterhöhender Funktionen ankoppeln lassen.Devices of this type are being used to an increasing extent in vehicle construction, in order to realize possibilities for seat occupancy detection. These detection devices are used in particular in luxury vehicles, because a number of different safety and comfort-increasing functions can be coupled to them.
Dies sind unter anderem grundlegende Sicherheitsfunktionen, die in Abhängigkeit der von einem Passagier ausgehenden und auf den Sitz einwirkenden Belastung in unterschiedlicher Weise betätigt bzw. ausgelöst werden. In der DE 196 15 321 wird als eine Möglichkeit eine differenzierte Airbagauslö- sung in Abhängigkeit von der Sitzbelegung genannt. Dabei wird erkannt, ob sich ein Erwachsener oder ein Kind bzw. ein Kindersitz auf dem Fahrzeugsitz befindet. Auch andere Sicherheitseinrichtungen, wie z.B. Gurtstraffer- oder Überrollbügelsysteme werden mit in den Sitz integrierten drucksensorischen Elementen gesteuert. Es ist auch üblich, spezielle Sitzverstellfunk ionen und sitzzugeordnete Sicherheitsfunktionen über den von einem Passagier passiv auf den Sitz ausgeübten Druck zu steuern. Ein solches System ist in der DE 43 39 113 beschrieben, in der neben einer KopfStützenverstellung und einer Kindersicherung in bezug auf Fondtüren und -fenster noch weitere Funktionen genannt werden, beispielsweise Beleuchtungs- und Klimatisierungsfunktionen, die in Abhängigkeit der auf den Sitz einwirkenden Belastung schaltbar sind.These include basic safety functions that are actuated or triggered in different ways depending on the load emanating from a passenger and acting on the seat. DE 196 15 321 mentions a differentiated airbag deployment depending on the seat occupancy as one possibility. It is recognized whether there is an adult or a child or a child seat on the vehicle seat. Other safety devices, such as belt tensioners or roll bar systems, are also controlled with pressure sensor elements integrated in the seat. It is also common to control special seat adjustment functions and safety functions associated with the seat via the pressure exerted passively by a passenger on the seat. Such a system is described in DE 43 39 113, in which, in addition to headrest adjustment and child safety in relation to rear doors and windows, further functions are mentioned, for example lighting and air conditioning functions which can be switched depending on the load acting on the seat .
All diesen auf mechanischen oder nichtmechanischen Wirkungsprinzipien beruhenden Sitzbelegungserkennungsvorrichtungen ist gemein, daß die an sie gekoppelten Funktionen durch den Passagier oder den Fahrer in passiver Weise ausgelöst werden, also einfach durch das Platznehmen im Fahrzeug. Ein aktives Auslösen dieser oder weiterer Funktionen ist nur möglich, wenn weitere Schalter am Armaturenbrett oder der Fahrzeugtür angebracht werden.All these seat occupancy detection devices based on mechanical or non-mechanical operating principles have in common that the functions coupled to them are triggered passively by the passenger or the driver, that is to say simply by taking a seat in the vehicle. An active triggering of these or other functions is only possible if additional switches are attached to the dashboard or the vehicle door.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung zum Erfassen eines auf einen Fahrzeugsitz ausgeübten Druckes hat den Vorteil, daß mindestens ein Teil der Sensoren zur Druckerfassung außerhalb des Sitzbereiches angeordnet ist, der in unmittelbarem Kontakt zum Körper des Passagiers steht . Damit lassen sich all diejenigen Fahrzeugfunktionen aktiv mit einer Drucksensorik beeinflussen, die bei herkömmlicher Sitzbelegungserkennung lediglich in passiver Weise betätigt werden. Gerade Schalter zum Aktivieren von Sitzverstellvorgängen als die dem Sitz unmittelbar zugeordneten Funktionen lassen sich auf diese Weise sehr elegant und für den Passagier bequem in den Fahrzeugsitz integrieren.The device according to the invention for detecting a pressure exerted on a vehicle seat has the advantage that at least some of the sensors for pressure detection are arranged outside the seat area and are in direct contact with the body of the passenger. This means that all those vehicle functions can be actively influenced with a pressure sensor system that are only actuated passively with conventional seat occupancy detection. Switches for activating seat adjustment processes as the functions directly assigned to the seat can be very much in this way elegantly and conveniently integrated into the vehicle seat for the passenger.
Es gibt verschiedene Möglichkeiten hinsichtlich der Auswahl bestimmter Sensortypen für den Einsatz zurThere are various options regarding the selection of certain sensor types for use
Sitzbelegungserkennung. Neben Sensoren, die auf einem mechanischen Wirkungsprinzip beruhen, beispielsweise mikromechanische Schalter, sind auch solche auf elektrischer oder magnetischer Basis denkbar. Entscheidend ist nur, daß die benutzten Sensoren auf äußeren Druck reagieren.Seat occupancy detection. In addition to sensors based on a mechanical principle of action, for example micromechanical switches, those based on electrical or magnetic principles are also conceivable. It is only important that the sensors used react to external pressure.
Ist die Sitzbelegungserkennung in einem Fahrzeug auf einer unter einem Sitzbezug angeordneten Sitzfolie integriert, so ist es vorteilhaft, wenn die Sensoren außerhalb des in unmittelbaren Kontakt zum Körper des Passagiers stehenden Sitzbereiches ebenfalls in diese Folie integriert sind. Hieraus ergeben sich neben dem Vorteil einer äußerst flachen Ausführungsform vor allem Kostenvorteile, weil die Herstellung einer größeren Sitzfolie mit mehr Drucksensoren keinen wesentlichen Mehraufwand darstellt. Genauso ist die Erfassung und die Auswertung der zusätzlichen Druckimpulse über eine schon vorhandene Steuereinheit kein sich in Materialkosten niederschlagendes Problem, sie sind als zusätzliche Programmroutinen ohne weiteres implementierbar.If the seat occupancy detection is integrated in a vehicle on a seat film arranged under a seat cover, it is advantageous if the sensors are also integrated into this film outside the seat area that is in direct contact with the body of the passenger. In addition to the advantage of an extremely flat embodiment, this results above all in cost advantages because the production of a larger seat film with more pressure sensors does not represent any significant additional outlay. In the same way, the acquisition and evaluation of the additional pressure pulses via an already existing control unit is not a problem that is reflected in material costs; they can be easily implemented as additional program routines.
Vorteilhaft ist auch, wenn die Sensoren außerhalb des besagten Sitzbereiches am Rand einer Sitzfläche nebeneinander angeordnet sind. Damit liegt eine Anordnung in der Art eines Schaltbretts vor, auf das der Fahrer oder der Passagier bequem und in gezielter Weise zugreifen kann.It is also advantageous if the sensors are arranged next to one another outside the said seating area on the edge of a seating surface. There is thus an arrangement in the manner of a switch board which the driver or the passenger can access conveniently and in a targeted manner.
Um die Bereiche der Drucksensoren, die unter dem Sitzbezug angeordnet sind, zu erkennen, ist es vorteilhaft, wenn diese eine Markierung aufweisen. Die Symbole sind dann so gewählt, daß klar zu erkennen ist, welche Funktionen mit dem jeweiligen Drucksensor betätigt werden können. Zur Markierung dieser Stellen eignen sich z.B. farbige Pfeile, deren Richtung die entsprechende Verstellrichtung nahelegen, oder Symbole, die sich auch ästhetisch in das Gesamtbild des Sitzes einfügen.In order to recognize the areas of the pressure sensors which are arranged under the seat cover, it is advantageous if they have a marking. The symbols are then selected in such a way that it is clear which functions are used with the respective pressure sensor can be operated. Colored arrows, the direction of which suggests the corresponding adjustment direction, or symbols, which also aesthetically fit into the overall picture of the seat, are suitable for marking these places.
Durch die Integration der für die Sitzverstellung notwendigen Schalter in die Sitzfolie können zusätzliche, einzeln zu montierende und zu verdrahtende Schalter eingespart werden. Hierdurch reduziert sich nicht nur der Montageaufwand, es wird auch ein störunanfälligeres System geschaffen, weil eine Vielzahl von Kontakten und Lötpunkten entfallen. Ebenso kann die zur Sitzverstellung gehörende Elektronik in die schon existente Sitzbelegungselektronik integriert werden, was insgesamt zu einer erheblichen Kostensenkung führt .By integrating the switches required for seat adjustment into the seat film, additional switches that can be individually assembled and wired can be saved. This not only reduces the assembly effort, it also creates a system that is less susceptible to faults because a large number of contacts and soldering points are eliminated. Likewise, the electronics belonging to the seat adjustment can be integrated into the already existing seat occupancy electronics, which leads overall to a considerable reduction in costs.
Steht ein außerhalb des besagten Sitzbereiches liegender Sensor mit einem Verschluß einer Kindersitzhalterung inIs a sensor lying outside of the said seating area with a closure of a child seat holder in
Verbindung, kann als weitere sitzzugeordnete Funktion eine Kindersitzerkennung durchgeführt werden. Das bedeutet, daß die Information, ob sich ein Kindersitz auf dem Fahrzeugsitz befindet und in die Halterung eingerastet ist oder nicht, über einen Drucksensor an die Steuereinheit weitergegeben und entsprechend angezeigt werden kann. Diese Information ist speziell für eine differenzierte Airbagauslösung relevant .Connection, child seat recognition can be carried out as a further seat-assigned function. This means that the information as to whether a child seat is on the vehicle seat and is engaged in the holder or not can be passed on to the control unit via a pressure sensor and displayed accordingly. This information is especially relevant for a differentiated airbag deployment.
Eine weitere vorteilhafte Variante besteht darin, die Gurtschloßzustandserkennung über die in die Sitzfolie integrierten Drucksensoren durchzuführen. Damit kann auch diese Information mit der erfindungsgemäßen Vorrichtung erfaßt und ebenfalls angezeigt werden. Eine sehr einfache Möglichkeit die Verbindung von Kindersitzhalterung und Gurtschloß zu den druckempfindlichen Bereichen der Sitzfolie herzustellen ist die Verwendung mechanischer Vorrichtungen, beispielsweise Hebel oder Bolzen, über die der Druck übertragen wird.A further advantageous variant consists in carrying out the belt buckle condition detection via the pressure sensors integrated in the seat film. This information can thus also be recorded with the device according to the invention and also displayed. A very simple way of connecting the child seat holder and the buckle to the pressure-sensitive areas of the seat film is to use mechanical devices, for example levers or bolts, via which the pressure is transmitted.
Zeichnungdrawing
In der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Sitz nach dem Ausführungsbeispiel von der Seite, Figur 2 den Sitz von oben in Richtung des Pfeiles A in Figur 1, die Figuren 3 und 4 die Bereiche III in Figur 2 in zwei verschiedenen Zuständen von der Seite, und Figur 5 eine vergrößerte Darstellung des Bereiches IV in Figur 1.In the drawing, an embodiment of a device according to the invention is shown and explained in more detail in the following description. 1 shows a seat according to the exemplary embodiment from the side, FIG. 2 shows the seat from above in the direction of the arrow A in FIG. 1, FIGS. 3 and 4 show the areas III in FIG. 2 in two different states from the side, and FIG. 5 an enlarged view of area IV in Figure 1.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Das in Figur 1 dargestellte Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zeigt einen typischen Fahrzeugsitz, unter dessen Bezug 10 eine Sitzfolie 12 angeordnet ist. Diese Sitzfolie 12 ist eine etwa 1 mm dünne, aus zwei Lagen bestehende Folie . Die erste Lage weist druckempfindliche Bereiche auf, deren elektrischerThe exemplary embodiment of a device according to the invention shown in FIG. 1 shows a typical vehicle seat, under the cover 10 of which a seat film 12 is arranged. This seat film 12 is an approximately 1 mm thin film consisting of two layers. The first layer has pressure-sensitive areas, their electrical
Widerstand sich in Abhängigkeit vom Druck ändert. Darunter befindet sich die zweite Lage mit aufgebrachten Leiterbahnen, welche die Druckinformation an ein Steuergerät 14 weiterleiten. Die druckempfindlichen Bereiche auf der Sitzfolie sind die Sensoren 16. Diese Sensoren 16 sind in dem Ausführungsbeispiel der Figur 1 am Rand einer Sitzfläche 18 angeordnet .Resistance changes depending on the pressure. Below this is the second layer with applied conductor tracks, which forward the pressure information to a control device 14. The pressure-sensitive areas on the seat film are the sensors 16. In the exemplary embodiment in FIG. 1, these sensors 16 are arranged on the edge of a seat surface 18.
Mit den Antriebsmitteln 20 können wichtige Verstellungen des Sitzes automatisch durchgeführt werden. In dem dargestellten Ausführungsbeispiel sind dies die Längs- undWith the drive means 20 important adjustments of the seat can be carried out automatically. In the illustrated Embodiment, these are the longitudinal and
Höhenverstellung des Fahrzeugsitzes, die Neigungsverstellung einer Lehne 22 und die Höhenverstellung einer Kopfstütze 24. Die Antriebsmittel 20 sind üblicherweise Elektrokleinmotoren, es können aber auch Antriebsmittel auf pneumatischer oder hydraulischer Basis benutzt werden.Height adjustment of the vehicle seat, the inclination adjustment of a backrest 22 and the height adjustment of a headrest 24. The drive means 20 are usually small electric motors, but drive means on a pneumatic or hydraulic basis can also be used.
In Figur 2 ist eine Ansicht des Fahrzeugsitzes in Richtung des Pfeiles A in Figur 1 dargestellt. Hier sind genau wie in allen folgenden Figuren gleiche Merkmale mit gleichenFIG. 2 shows a view of the vehicle seat in the direction of arrow A in FIG. 1. Here, as in all the following figures, the same features are the same
Bezugszahlen gekennzeichnet. Die Sitzfolie 12 ist in Figur 2 nicht mehr explizit eingezeichnet, sie überdeckt jedoch die Sitzfläche 18 nahezu vollständig, ebenso den dargestellten Bereich der Rückenlehne 22 und der Kopfstütze 24.Reference numbers marked. The seat film 12 is no longer explicitly shown in FIG. 2, but it covers the seat surface 18 almost completely, as does the region of the backrest 22 and the headrest 24 shown.
Die verschiedenen Sitzelemente können in jeweils zwei Bereiche unterteilt werden, die durch gestrichelte Linien voneinander getrennt sind. Dabei stellen die eingeschlossenen Flächen 26 den in unmittelbaren Kontakt zum Körper des Passagiers stehenden Sitzbereich dar. Die restlichen Flächen werden als die Bereiche 27 außerhalb des in unmittelbarem Kontakt zum Körper des Passagiers stehenden Sitzbereiches bezeichnet.The different seating elements can be divided into two areas, which are separated from each other by dashed lines. The enclosed areas 26 represent the seating area which is in direct contact with the body of the passenger. The remaining areas are referred to as the areas 27 outside the seating area which is in direct contact with the body of the passenger.
Außerhalb der Fläche 26 sind am linken und rechten Rand der Sitzfläche 18 jeweils vier Stellen markiert, unter denen sich die Sensoren 16.1 bis 16.8 zur Sitzverstellung befinden. Durch aktiven Druck auf die mit Pfeilen markierten Stellen kann in diesem Ausführungsbeispiel mit den Sensoren 16.1 und 16.2 eine Längsverstellung des Sitzes durchgeführt werden. Mit den unmittelbar dahinter angeordneten Sensoren 16.3 und 16.4 wird die Höhenverstellung des Fahrzeugsitzes vorgenommen. Die vier nebeneinander angeordneten Sensoren 16.5 und 16.6 am linken Rand der Sitzfläche 20 dienen der Neigungsverstellung der Lehne 22, und mit den Sensoren 16.7 und 16.8 kann die Kopfstütze 24 in ihrer Höhe verstellt werden.Outside the surface 26, four places are marked on the left and right edge of the seat surface 18, under which the sensors 16.1 to 16.8 are located for seat adjustment. In this exemplary embodiment, sensors 16.1 and 16.2 can be used to perform a longitudinal adjustment of the seat by actively pressing the points marked with arrows. The height of the vehicle seat is adjusted using the sensors 16.3 and 16.4 arranged directly behind it. The four sensors 16.5 and 16.6 arranged next to one another on the left edge of the seat surface 20 serve to adjust the inclination of the backrest 22, and with the sensors 16.7 and 16.8, the headrest 24 can be adjusted in height.
Im hinteren Bereich der Sitzfläche 18, ebenfalls außerhalb der Fläche 26, sind zwei weitere Sensoren 16.9 plaziert, die mit zwei Verschlüssen 28 eines Kindersitzes in Kontakt stehen.In the rear area of the seat surface 18, also outside the surface 26, two further sensors 16.9 are placed, which are in contact with two closures 28 of a child seat.
In den Figuren 3 und 4 ist eine Möglichkeit zur Kindersitzerkennung dargestellt. Der Verschluß 28 desA possibility for child seat recognition is shown in FIGS. 3 and 4. The closure 28 of the
Kindersitzes ist so geformt, daß er in ein am Fahrzeugsitz angebrachtes Gegenstück 30 einrasten kann und beide Teile sicher miteinander verbindet. Die Form des Verschlusses 28 ermöglicht außerdem ein Betätigen eines Hebels 32, der über eine Feder 34 mit dem Gegenstück 30 verbunden ist. DerChild seat is shaped so that it can snap into a counterpart 30 attached to the vehicle seat and securely connects the two parts to one another. The shape of the closure 28 also enables actuation of a lever 32 which is connected to the counterpart 30 via a spring 34. The
Angelpunkt 36 des Hebels 32 befindet sich in etwa mittig über den Sensoren 16.91 und 16.92. Ist der Verschluß 28 - wie in Figur 3 gezeigt - nicht mit dem Gegenstück 30 in Verbindung, dann drückt der Hebel 32 bedingt durch die Kraft der Feder 34 auf den Sensor 16.92 und belastet diesen (Pfeil B) . Auf den Sensor 16.91 wird kein Druck ausgeübt. Bewegt man den Verschluß 28 des Kindersitzes in Richtung des Pfeiles C und läßt ihn in das Gegenstück 30 einrasten, wird der Hebel 32 in eine Richtung gedrückt, die den Sensor 16.91 belastet (Pfeil D) und gleichzeitig den Sensor 16.92 entlastet. Somit kann zuverlässig erkannt werden, ob der Kindersitz vorschriftsmäßig befestigt ist oder nicht. Hinzu kommt, daß jeder der beiden Kindersitzzustände durch zwei eindeutige Sensorzustände charakterisiert wird und somit eine für Sicherheitssysteme notwendige, redundante Aussage zum Zustand des Kindersitzes vorliegt.The pivot point 36 of the lever 32 is located approximately in the center above the sensors 16.91 and 16.92. If the closure 28 - as shown in FIG. 3 - is not connected to the counterpart 30, then the lever 32 presses on the sensor 16.92 due to the force of the spring 34 and loads it (arrow B). No pressure is exerted on sensor 16.91. If you move the closure 28 of the child seat in the direction of arrow C and snap it into the counterpart 30, the lever 32 is pressed in a direction that loads the sensor 16.91 (arrow D) and at the same time relieves the sensor 16.92. It can thus be reliably recognized whether the child seat is attached in accordance with regulations or not. In addition, each of the two child seat states is characterized by two unambiguous sensor states and thus there is a redundant statement about the state of the child seat that is necessary for safety systems.
Eine dazu analoge Zustandserkennung läßt sich mit dem Sensor 16.10, welcher in unmittelbarer Nähe eines Gurtschlosses 38 angeordnet ist, ebenfalls über mechanische Vorrichtungen durchführen. Auch hier bieten sich Hebel an, deren Angelpunkte 40 - wie in Figur 5 dargestellt - sich mittig über zwei Druckpunkten 16.10 befinden. Somit erhält man auch hier eine redundante Aussage zum Zustand des Gurtschlosses . An analogous state detection can be done with the sensor 16.10, which is arranged in the immediate vicinity of a buckle 38, also via mechanical devices carry out. Here, too, there are levers whose pivot points 40 - as shown in FIG. 5 - are located centrally over two pressure points 16.10. This also provides a redundant statement about the condition of the buckle.

Claims

Ansprüche Expectations
1. Vorrichtung zum Erfassen eines auf einen Fahrzeugsitz ausgeübten Druckes mit an mindestens einem Sitzelement angebrachten Sensoren (16) und mit einer mit den Sensoren (16) verbundenen, die von den Sensoren (16) ausgehenden Signale erfassenden Steuereinheit (14) , dadurch gekennzeichnet, daß mindestens ein Teil der Sensoren (16) außerhalb des in unmittelbarem Kontakt zum Körper des Passagiers stehenden Sitzbereiches (26) angeordnet ist.1. Device for detecting a pressure exerted on a vehicle seat with sensors (16) attached to at least one seat element and with a control unit (14) connected to the sensors (16) that detects the signals emitted by the sensors (16), characterized in that that at least some of the sensors (16) are arranged outside the seating area (26) which is in direct contact with the body of the passenger.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sensoren (16) ihren elektrischen Widerstand in2. Device according to claim 1, characterized in that the sensors (16) in their electrical resistance
Abhängigkeit von dem auf sie ausgeübten Druck ändern.Change depending on the pressure exerted on them.
3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Sensoren (16) auf einer unter einem Sitzbezug (10) angeordneten Sitzfolie (12) integriert sind.3. Device according to one of claims 1 or 2, characterized in that the sensors (16) are integrated on a seat film (12) arranged under a seat cover (10).
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die außerhalb des Sitzbereiches (26) liegenden Sensoren (16) am Rand einer Sitzfläche (18) nebeneinander angeordnet sind.4. Device according to one of claims 1 to 3, characterized in that the outside of the seating area (26) lying sensors (16) on the edge of a seat (18) are arranged side by side.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stellen des Sitzbezugs (10) , unter denen sich die außerhalb des Sitzbereiches (26) liegenden Sensoren (16) befinden, Markierungen aufweisen.5. Device according to one of claims 1 to 4, characterized in that the locations of the seat cover (10), under to which the sensors (16) located outside the seating area (26) are marked.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Steuereinheit (14) mit eine6. Device according to one of claims 1 to 5, characterized in that the control unit (14) with one
Verstellung der einzelnen Sitzelemente ermöglichenden Antriebsmitteln (20) verbunden ist.Adjustment of the individual seating elements enabling drive means (20) is connected.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß mindestens ein außerhalb des7. Device according to one of claims 1 to 6, characterized in that at least one outside of
Sitzbereiches (26) liegender Sensor (16.9) mit einem Verschluß (28) eines Kindersitzes in Verbindung steht.Sitting area (26) lying sensor (16.9) is connected to a closure (28) of a child seat.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der mindestens eine Sensor (16.9) über mechanische8. The device according to claim 7, characterized in that the at least one sensor (16.9) via mechanical
Vorrichtungen, insbesondere Hebel oder Bolzen, mit dem Verschluß (28) des Kindersitzes (28) verbunden ist.Devices, in particular levers or bolts, are connected to the closure (28) of the child seat (28).
9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß mindestens ein außerhalb des9. Device according to one of claims 1 to 8, characterized in that at least one outside of
Sitzbereiches (26) liegender Sensor (16.10) mit einem Gurtschloß (38) in Verbindung steht.Sitting area (26) lying sensor (16.10) is connected to a belt buckle (38).
10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der mindestens eine Sensor (16.10) über mechanische10. The device according to claim 9, characterized in that the at least one sensor (16.10) via mechanical
Vorrichtungen, insbesondere Hebel oder Bolzen, mit dem Gurtschloß (38) verbunden ist. Devices, in particular levers or bolts, are connected to the belt buckle (38).
EP99945893A 1998-07-06 1999-07-03 Device for detecting pressure exerted upon the seat of a motor vehicle Ceased EP1034087A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19830104A DE19830104A1 (en) 1998-07-06 1998-07-06 Device for detecting a pressure exerted on a vehicle seat
DE19830104 1998-07-06
PCT/DE1999/002052 WO2000001552A1 (en) 1998-07-06 1999-07-03 Device for detecting pressure exerted upon the seat of a motor vehicle

Publications (1)

Publication Number Publication Date
EP1034087A1 true EP1034087A1 (en) 2000-09-13

Family

ID=7873105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99945893A Ceased EP1034087A1 (en) 1998-07-06 1999-07-03 Device for detecting pressure exerted upon the seat of a motor vehicle

Country Status (7)

Country Link
US (1) US6327917B1 (en)
EP (1) EP1034087A1 (en)
JP (1) JP2002519241A (en)
KR (1) KR20010023473A (en)
BR (1) BR9906591A (en)
DE (1) DE19830104A1 (en)
WO (1) WO2000001552A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7976060B2 (en) * 1995-06-07 2011-07-12 Automotive Technologies International, Inc. Seat load or displacement measuring system for occupant restraint system control
US7988190B2 (en) * 1995-06-07 2011-08-02 Automotive Technologies International, Inc. Airbag deployment control using seatbelt-mounted sensor
US7766383B2 (en) * 1998-11-17 2010-08-03 Automotive Technologies International, Inc. Vehicular component adjustment system and method
US7762582B2 (en) * 1995-06-07 2010-07-27 Automotive Technologies International, Inc. Vehicle component control based on occupant morphology
US20070135982A1 (en) 1995-06-07 2007-06-14 Automotive Technologies International, Inc. Methods for Sensing Weight of an Occupying Item in a Vehicular Seat
DE10057222B4 (en) * 2000-11-18 2007-02-08 I.G. Bauerhin Gmbh panel heating
DE102004007787A1 (en) * 2004-02-18 2005-09-08 Daimlerchrysler Ag Child safety system for a motor vehicle has a child seat with a seat-belt system to be fastened on a co-driver's seat
DE102004043296A1 (en) * 2004-09-08 2006-03-09 Fendt, Günter Security mechanism for omnibus, has supporting devices e.g. belt pre-tensioner, attached to each seat, where devices are activated by centrally arranged airbag control device in case of accident based on occupancy condition of seat
DE102005057806B4 (en) * 2005-12-03 2016-04-14 Bayerische Motoren Werke Aktiengesellschaft Occupant detection device for a motor vehicle
DE102006019720A1 (en) * 2006-04-27 2007-10-31 Siemens Ag Safety arrangement for e.g. motor vehicle, has sensor device detecting allocation of transportation area, and control unit locking door of area e.g. rear seat, based on detected allocation of area of vehicle
US7391223B2 (en) * 2006-10-04 2008-06-24 3M Innovative Properties Company Insulation barrier for unshielded wire
JP7331846B2 (en) * 2018-06-07 2023-08-23 ソニーグループ株式会社 CONTROL DEVICE, CONTROL METHOD, PROGRAM, AND MOVING OBJECT
US11358499B2 (en) 2019-10-17 2022-06-14 GM Global Technology Operations LLC Lower and upper latch anchor use detection sensing device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059909A (en) * 1972-02-09 1977-11-29 The Singer Company Neural receptor augmented G seat system
DE3039218A1 (en) * 1980-10-17 1982-05-06 Daimler-Benz Ag, 7000 Stuttgart Vehicle safety belt clasp - consists of housing containing bolt mechanism, with hand operated release, and separate adjustment and setting
JPS58105834A (en) * 1981-12-17 1983-06-23 Nissan Motor Co Ltd Automatically positioning device of seat
US4655505A (en) * 1984-12-13 1987-04-07 Nhk Spring Co., Ltd. Pneumatically controlled seat for vehicle
JPS6239338A (en) * 1985-08-15 1987-02-20 Mazda Motor Corp Car seat device
US5263765A (en) * 1989-12-27 1993-11-23 Nissan Motor Co., Ltd. Automatic adjustable seat
DE4339113C2 (en) * 1993-11-16 1996-09-05 Daimler Benz Ag Seat occupancy detection device in a motor vehicle
DE19527354A1 (en) * 1995-07-26 1997-01-30 Bayerische Motoren Werke Ag Safety device for a vehicle seat that can be changed in terms of its longitudinal position and / or backrest inclination
DE19615321A1 (en) * 1996-04-17 1997-10-23 Daimler Benz Ag Safety device for a vehicle with a removable seat, especially a passenger seat
DE19625730A1 (en) * 1996-06-27 1998-01-02 Teves Gmbh Alfred Tactile sensor matrix for vehicles
DE19631454C2 (en) * 1996-08-03 1998-07-16 Grammer Ag Vehicle seat with a seat plate and a backrest
FR2754497B1 (en) * 1996-10-14 1999-01-08 Peugeot DEVICE FOR CONTROLLING THE POSITION OF DIFFERENT ORGANS OF A MOTOR VEHICLE SEAT
US5848661A (en) * 1996-10-22 1998-12-15 Lear Corporation Vehicle seat assembly including at least one occupant sensing system and method of making same
JP4012574B2 (en) * 1996-10-25 2007-11-21 バイエリッシェ モートーレン ウエルケ アクチエンゲゼルシャフト Adjustment method for traveling vehicle seat components
US6055473A (en) * 1997-02-19 2000-04-25 General Motors Corporation Adaptive seating system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0001552A1 *

Also Published As

Publication number Publication date
DE19830104A1 (en) 2000-01-13
KR20010023473A (en) 2001-03-26
JP2002519241A (en) 2002-07-02
WO2000001552A1 (en) 2000-01-13
US6327917B1 (en) 2001-12-11
BR9906591A (en) 2000-07-18

Similar Documents

Publication Publication Date Title
DE102005026167B4 (en) Dashboard with an operating mechanism for a glove box lid
WO2000001552A1 (en) Device for detecting pressure exerted upon the seat of a motor vehicle
DE102008022046B3 (en) Vehicle i.e. commercial vehicle, seat occupancy detection device, has spring element fastened to shearing arm, where predetermined prestressing force of spring element corresponds to weight force acting downwards by maximum mass
WO2005000637A1 (en) Seat occupancy sensor
DE19724344C2 (en) Device for identifying the type of occupancy of the passenger seat of a motor vehicle
DE102011122180A1 (en) Method for detecting an actuating movement for an actuating device of a motor vehicle trim element and actuating device of a motor vehicle trim element
DE102018109282A1 (en) ROTATED AIRBAG
DE202015001403U1 (en) Pressure sensitive seat occupancy sensor unit
EP1631975B1 (en) Operating element
EP1374739A2 (en) Seat with adjustable profile and module support
EP1545002A2 (en) Piezoelectric switch
DE102015001851A1 (en) Hooter system
DE19918353A1 (en) Child safety device for automobile has automatic activating/deactivating or altering of child safety parameters selectively over-ridden by driver
EP1412232A1 (en) Occupant restraint system located in the rear passenger compartment of a motor vehicle
DE19851698A1 (en) Device and method for adjusting a vehicle seat
DE102015207882A1 (en) A vehicle occupant protection device, motor vehicle, and method of operating a vehicle occupant protection device
DE4312408B4 (en) Car crash sensor arrangement
EP1000797B1 (en) Device and method for recognising the type of occupation of a vehicle seat
DE19951120C2 (en) Device and method for facilitating getting in and / or out of a rear seat of a four-door motor vehicle
DE202015001912U1 (en) Seat occupancy sensor unit and seat
EP1062130A1 (en) Airbag safety device
DE4438195C1 (en) Automobile steering wheel incorporating air-bag device
DE2204318C3 (en) Seat contact switch of an application control device for seat belt systems in motor vehicles
DE102007061903B3 (en) Gap covering device for motor vehicle i.e. passenger car, has U-shaped segments connected with each other, where overlapping level of segments changes corresponding to adjustment of adjustable component relative to body-fixed component
DE10027122B4 (en) Airbag module arrangement in a motor vehicle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000713

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20060331