WO2009080916A1 - Motor vehicle impact sensor device and arrangement of such a device on a motor vehicle component - Google Patents

Motor vehicle impact sensor device and arrangement of such a device on a motor vehicle component Download PDF

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Publication number
WO2009080916A1
WO2009080916A1 PCT/FR2008/001402 FR2008001402W WO2009080916A1 WO 2009080916 A1 WO2009080916 A1 WO 2009080916A1 FR 2008001402 W FR2008001402 W FR 2008001402W WO 2009080916 A1 WO2009080916 A1 WO 2009080916A1
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WO
WIPO (PCT)
Prior art keywords
sensor device
lower face
wall
motor vehicle
sensor
Prior art date
Application number
PCT/FR2008/001402
Other languages
French (fr)
Other versions
WO2009080916A8 (en
Inventor
Yann Le Bras
Frédéric DECKER
Original Assignee
Renault S.A.S.
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 Renault S.A.S. filed Critical Renault S.A.S.
Priority to EP08864213A priority Critical patent/EP2198250A1/en
Publication of WO2009080916A1 publication Critical patent/WO2009080916A1/en
Publication of WO2009080916A8 publication Critical patent/WO2009080916A8/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/005—Connection with the vehicle part
    • B60R2011/0061—Connection with the vehicle part using key-type connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/0064—Connection with the article
    • B60R2011/0073—Connection with the article using key-type connections

Definitions

  • Impact sensor device of a motor vehicle and arrangement of such a device on a motor vehicle body.
  • the present invention relates to a shock sensor device of a motor vehicle and an arrangement of this device on a sheet of the vehicle.
  • shock sensor devices for detecting a crash and trigger, therefore, various active security systems, such as pyrotechnic systems airbags and seat belt pretensioners. These shock sensor devices have means for detecting and / or measuring accelerations. Because of their safety function, they must be securely attached to the vehicle. Thus, the positioning of the sensors on the vehicle during assembly must be in accordance with what is intended and games not provided should not appear between the sensors and the motor vehicle.
  • a shock sensor attachment interface comprising a hole made in a metal sheet, the hole comprising a circular opening into which an oblong slot opens.
  • This hole has a substantially keyhole appearance, the oblong slot being formed along an extension of a radius of the circular opening.
  • the shape of this hole allows, on the one hand, an easy mounting of the sensor device, on the vehicle, mainly through the circular opening, and, secondly, to retain the sensor on the vehicle, mainly thanks to the oblong light.
  • the sensor has, for its attachment to the vehicle, a lower face intended to come into contact with the sheet provided with the hole and a flanged nut and provided with flats for sliding in the oblong slot.
  • the shoulder of this nut can be, by the action of a screw, closer to the underside to trap the sheet between them.
  • the sensor can be held on the vehicle.
  • the mounting of the sensor on the vehicle remains possible in an unspecified position in which the sensor is mis-oriented and in which the underside of the sensor does not come into plane contact on the vehicle's interface plate. It results from such an assembly that the connection of the sensor to the vehicle is unreliable and the capabilities and accuracy of detection and / or measurement of the sensor may be seriously impaired. Indeed, this type of sensor has a preferred direction of detection and / or measurement and, therefore, the sensor must be mounted in a precise orientation.
  • Document JP 2005-106238 discloses a sensor mounted on a wheel hub of a motor vehicle.
  • the sensor is mounted on a cover having two holes of different geometries. Despite the means implemented, it remains possible to introduce the sensor in the lid without this sensor is properly fixed and placed in position on the lid.
  • EP 1 536 168 also discloses an electrovalve and a method of mounting this solenoid valve on a structure by means of screw. After removal of the screws, the solenoid valve can be mounted in the wrong angular position.
  • the object of the invention is to provide a sensor obviating the disadvantages mentioned above and improving the known sensors of the prior art.
  • the invention proposes a sensor of simple design and structure but avoiding its mounting in an unspecified position and to ensure a reliable connection to the vehicle that team.
  • the invention further provides an arrangement of a sensor attached to a member of a motor vehicle.
  • the sensor device according to the invention is defined by claim 1.
  • the motor vehicle according to the invention is defined by claim 12.
  • the attached drawing shows, by way of example, an embodiment of a sensor device of a motor vehicle according to the invention and an arrangement comprising such a device.
  • Figure 1 is a perspective view of an embodiment of a sensor device according to the invention.
  • Fig. 2 is a side view of this sensor device embodiment.
  • Figure 3 is a partial perspective view of a motor vehicle member for receiving a sensor device according to the invention.
  • Figure 4 is a perspective view of the embodiment of a sensor device according to the invention mounted on a motor vehicle body.
  • Figure 5 is a partial longitudinal section of the embodiment of a sensor device according to the invention mounted on a motor vehicle body.
  • the sensor device 1 shown in Figures 1 and 2 mainly comprises a housing 5 having an upper face 6 and a lower face 7.
  • This housing contains means for detecting and / or measuring impacts. These means may for example comprise an accelerometer.
  • the sensor device is intended to be fixed on a member 20 of a motor vehicle such as a door.
  • the sensor device is intended to be fixed on the body in a specific or intended position.
  • the member intended to receive the sensor device has an interface comprising a metal plate 24 or a similar element on which a hole 21 is made. This hole comprises a circular opening 22 into which an oblong slot opens.
  • This light extends for example along an extension of a radius of the circular opening so that the hole has an axis of symmetry.
  • the sensor device provides a safety function in the vehicle. For example, it is used to determine whether it is necessary to activate active safety systems in the vehicle, such as pyrotechnic airbag systems or seat belt pretensioners. This determination is made in particular by the signals from the sensor device. Thus, it is necessary for these signals to be as representative as possible of the shocks and / or accelerations experienced by the vehicle. Also, it is very important that the sensor device is securely anchored to the vehicle and remains so throughout the life of the vehicle and that the sensor device is positioned on the vehicle in the intended mounting position.
  • the sensor device according to the invention has means for ensuring these conditions.
  • the sensor device has fastening means and mounting keying means.
  • the foolproof means allow that when the sensor device is positioned incorrectly on the member, it can occupy only a position sufficiently different from the correct position so that a fitter or a user should be able to notice the defect mounting.
  • the fastening means comprise a cylindrical hole through the casing 5 from the upper face 6 to the lower face 7, a movable nut 8 according to a sliding connection between two stops in this cylindrical hole, the nut having a shape substantially of revolution with a shoulder 9 of diameter slightly less than the diameter of the circular opening 22.
  • the nut also has two flats 10. The flat dimension of the nut is slightly less than the width of the oblong groove.
  • the polarizing means 2 provided on the sensor device are located at the lower face 7 of the housing which is intended to come into contact with the sheet. They comprise a T-shaped extrusion substantially perpendicular to the lower face and having a T-section. This T-shape is arranged on the housing so that the nut is disposed above the T when the we look at the underside. The height of this form is substantially greater than the thickness of the sheet. This T-shape is a first polarizing means for indicating to the editor the correct mounting position of the sensor.
  • the keying means 2 and, in particular the T-shaped are positioned in the circular opening of the hole made on the sheet, each of the three ends of the form in T substantially to the edge of the circular opening.
  • the circular opening is a polarizing means provided on the member and cooperating with the keying means 2 provided on the sensor device.
  • these polarizing means do not prohibit mounting the sensor upside down: that is to say with the T-shape in contact with the sheet in an area opposite to the circular opening relative to the oblong groove 23. If a sensor is mounted this way, it will not be properly positioned and not securely anchored to the sheet. In addition, it will present a position different from that which it would present if it was correctly mounted. Indeed, the face of the sheet can not be pressed against the face 7 of the sensor device. In practice, we note that such a mounting fault may go unnoticed for an editor or a user.
  • the foolproofing means also comprise mounting interference means 3.
  • These mounting interference means have the function of not allowing the mounting and fixing of the sensor device in a single position: that provided and prohibit any possibility of mounting and / or fixing the sensor device in a position other than that provided.
  • Mounting interference means provided on the sensor device co-operate with mounting interference means provided on the member and formed by the shapes of the hole in the sheet.
  • the mounting interference means provided on the sensor device comprises a first wall 4 which is an extrusion substantially perpendicular to the underside of the housing.
  • This first wall has a curvature whose center is located on the axis of the nut 8.
  • the upper end of the wall (relative to the lower face) is substantially at the same level as the shoulder 9 when it is the farthest from the underside.
  • the distance between this first wall and the shoulder is preferably less than the thickness of the sheet.
  • the length of this first wall (measured parallel to the lower face) is preferably greater than or even greater than the width of the oblong slot.
  • the interference means provided on the sensor device also comprise a second wall 33 connecting a first end of the first wall to a first end of the upper bar of the T-shape and a third wall 34 connecting a second end of the first wall at a second end of the upper bar of the T-shaped. All these interference means are dimensioned together to allow the mounting and / or the attachment of the sensor device only in a position provided with respect to the organ .
  • the interference means provided on the sensor device are dimensioned relative to the hole made on the sheet and to the thickness of the sheet to allow the mounting and / or fixing of the sensor device only in a position provided relative to the organ.
  • the sensor can preferably not even be kept in unstable equilibrium on the organ.
  • the shoulder 9 is introduced first into the circular opening of the sheet, then the sensor device is inclined relative to the sheet so that the shoulder passes partially on the other side of the sheet. prison. The sensor device is then moved so that the nut comes into the oblong slot and so as to position the foolproofing means provided on the sensor device in the circular opening.
  • the mounting interference means could also have other forms.
  • the first wall could be straight and not curved
  • the second and third walls could be curved and not straight, for example in a substantially concentric curve to the circular opening 22 when the sensor device is fixed on the sheet.
  • the volume defined by the upper bar 31 of the T-shape and the first, second and third walls could be filled with material.
  • the casing is preferably made by molding.

Abstract

Motor vehicle sensor device (1) comprising foolproof mounting means (2), characterized in that the foolproof means comprise interference mounting means (3) which prevent any possibility of the sensor being mounted in a position other than an intended position.

Description

Dispositif de capteur de choc d'un véhicule automobile et agencement d'un tel dispositif sur un organe de véhicule automobile. Impact sensor device of a motor vehicle and arrangement of such a device on a motor vehicle body.
La présente invention concerne un dispositif de capteur de choc d'un véhicule automobile et un agencement de ce dispositif sur une tôle du véhicule.The present invention relates to a shock sensor device of a motor vehicle and an arrangement of this device on a sheet of the vehicle.
Il est connu d'implanter sur un véhicule automobile des capteurs de choc permettant de détecter un crash et de déclencher, en conséquence, différents systèmes actifs de sécurité, tels que notamment des systèmes pyrotechniques d'airbags et de prétensionneurs de ceinture de sécurité. Ces dispositifs de capteurs de choc présentent des moyens pour détecter et/ou mesurer des accélérations. Du fait de leur fonction de sécurité, ils doivent être fixés de manière sûre au véhicule. Ainsi, le positionnement des capteurs sur le véhicule lors du montage doit être conforme à ce qui est prévu et des jeux non prévus ne doivent pas apparaître entre les capteurs et le véhicule automobile.It is known to implant on a motor vehicle shock sensors for detecting a crash and trigger, therefore, various active security systems, such as pyrotechnic systems airbags and seat belt pretensioners. These shock sensor devices have means for detecting and / or measuring accelerations. Because of their safety function, they must be securely attached to the vehicle. Thus, the positioning of the sensors on the vehicle during assembly must be in accordance with what is intended and games not provided should not appear between the sensors and the motor vehicle.
Il est connu de prévoir, sur le véhicule automobile, notamment dans les portes, des trous dans des tôles pour réaliser des interfaces de fixation de ces capteurs. On connaît par exemple une interface de fixation de capteur de choc comprenant un trou réalisé dans une tôle, le trou comprenant une ouverture circulaire dans lequel débouche une lumière oblongue. Ce trou présente sensiblement une apparence de trou de serrure, la lumière oblongue étant réalisée selon un prolongement d'un rayon de l'ouverture circulaire. La forme de ce trou permet, d'une part, un montage aisé du dispositif de capteur, sur le véhicule, principalement grâce à l'ouverture circulaire, et, d'autre part, de retenir le capteur sur le véhicule, principalement grâce à la lumière oblongue. Le capteur présente, pour sa fixation sur le véhicule, une face inférieure destinée à venir en contact avec la tôle munie du trou et un écrou épaulé et muni de méplats pour coulisser dans la lumière oblongue. L'épaulement de cet écrou peut être, par l'action d'une vis, rapproché de la face inférieure pour coincer la tôle entre ceux-ci. Ainsi, le capteur peut être maintenu sur le véhicule.It is known to provide, on the motor vehicle, in particular in the doors, holes in sheets to make interfaces for fixing these sensors. For example, there is known a shock sensor attachment interface comprising a hole made in a metal sheet, the hole comprising a circular opening into which an oblong slot opens. This hole has a substantially keyhole appearance, the oblong slot being formed along an extension of a radius of the circular opening. The shape of this hole allows, on the one hand, an easy mounting of the sensor device, on the vehicle, mainly through the circular opening, and, secondly, to retain the sensor on the vehicle, mainly thanks to the oblong light. The sensor has, for its attachment to the vehicle, a lower face intended to come into contact with the sheet provided with the hole and a flanged nut and provided with flats for sliding in the oblong slot. The shoulder of this nut can be, by the action of a screw, closer to the underside to trap the sheet between them. Thus, the sensor can be held on the vehicle.
Sur certains véhicules la longueur et le positionnement des câbles électriques liés à un capteur de choc interdit toute possibilité de montage de ce capteur dans une mauvaise position.On certain vehicles, the length and position of the electric cables connected to a shock sensor prohibits any possibility of mounting this sensor in an incorrect position.
Sur d'autres véhicules, bien qu'il soit prévu un moyen sur le capteur pour indiquer la position de montage correcte, le montage du capteur sur le véhicule reste possible dans une position non prévue dans laquelle le capteur est mal orienté et dans laquelle la face inférieure du capteur ne vient pas en contact plan sur la tôle d'interface du véhicule. Il résulte d'un tel montage que la liaison du capteur au véhicule n'est pas fiable et que les capacités et la précision de détection et/ou de mesure du capteur risquent d'être sérieusement altérées. En effet, ce type de capteur présente une direction de détection et/ou de mesure privilégiée et, par conséquent, le capteur doit être monté selon une orientation précise.On other vehicles, although a means is provided on the sensor to indicate the correct mounting position, the mounting of the sensor on the vehicle remains possible in an unspecified position in which the sensor is mis-oriented and in which the underside of the sensor does not come into plane contact on the vehicle's interface plate. It results from such an assembly that the connection of the sensor to the vehicle is unreliable and the capabilities and accuracy of detection and / or measurement of the sensor may be seriously impaired. Indeed, this type of sensor has a preferred direction of detection and / or measurement and, therefore, the sensor must be mounted in a precise orientation.
On connaît du document JP 2005-106238 un capteur monté sur un moyeu de roue de véhicule automobile. Le capteur est monté sur un couvercle comportant deux trous de géométries différentes. Malgré les moyens mis en œuvre, il demeure possible d'introduire le capteur dans le couvercle sans que ce capteur soit correctement fixé et mis en position sur ce couvercle.Document JP 2005-106238 discloses a sensor mounted on a wheel hub of a motor vehicle. The sensor is mounted on a cover having two holes of different geometries. Despite the means implemented, it remains possible to introduce the sensor in the lid without this sensor is properly fixed and placed in position on the lid.
On connaît aussi du document EP 1 536 168 une électrovanne et un procédé de montage de cette électrovanne sur une structure grâce â des vis. Après dépose des vis, l'électrovanne peut être montée dans une mauvaise position angulaire.EP 1 536 168 also discloses an electrovalve and a method of mounting this solenoid valve on a structure by means of screw. After removal of the screws, the solenoid valve can be mounted in the wrong angular position.
Le but de l'invention est de fournir un capteur obviant aux inconvénients mentionnés précédemment et améliorant les capteurs connus de l'art antérieur. En particulier, l'invention propose un capteur de conception et de structure simple mais permettant d'éviter son montage dans une position non prévue et permettant d'assurer une liaison fiable au véhicule qu'il équipe. L'invention propose encore un agencement d'un capteur fixé sur un organe d'un véhicule automobile.The object of the invention is to provide a sensor obviating the disadvantages mentioned above and improving the known sensors of the prior art. In particular, the invention proposes a sensor of simple design and structure but avoiding its mounting in an unspecified position and to ensure a reliable connection to the vehicle that team. The invention further provides an arrangement of a sensor attached to a member of a motor vehicle.
Le dispositif de capteur selon l'invention est défini par la revendication 1.The sensor device according to the invention is defined by claim 1.
Différents modes de réalisation du dispositif de capteur sont définis par les revendications 2 à 7.Different embodiments of the sensor device are defined by claims 2 to 7.
L'agencement selon l'invention est défini par la revendication 8.The arrangement according to the invention is defined by claim 8.
Différents modes de réalisation de l'agencement sont définis par les revendications 9 à 11.Different embodiments of the arrangement are defined by claims 9 to 11.
Le véhicule automobile selon l'invention est défini par la revendication 12.The motor vehicle according to the invention is defined by claim 12.
Le dessin annexé représente, à titre d'exemple, un mode de réalisation d'un dispositif de capteur d'un véhicule automobile selon l'invention et un agencement comprenant un tel dispositif.The attached drawing shows, by way of example, an embodiment of a sensor device of a motor vehicle according to the invention and an arrangement comprising such a device.
La figure 1 est une vue en perspective d'un mode de réalisation d'un dispositif de capteur selon l'invention.Figure 1 is a perspective view of an embodiment of a sensor device according to the invention.
La figure 2 est une vue de côté de ce mode de réalisation de dispositif de capteur. La figure 3 est une vue en perspective partielle d'un organe de véhicule automobile destiné à recevoir un dispositif de capteur selon l'invention.Fig. 2 is a side view of this sensor device embodiment. Figure 3 is a partial perspective view of a motor vehicle member for receiving a sensor device according to the invention.
La figure 4 est une vue en perspective du mode de réalisation d'un dispositif de capteur selon l'invention monté sur un organe de véhicule automobile.Figure 4 is a perspective view of the embodiment of a sensor device according to the invention mounted on a motor vehicle body.
La figure 5 est une coupe longitudinale partielle du mode de réalisation d'un dispositif de capteur selon l'invention monté sur un organe de véhicule automobile.Figure 5 is a partial longitudinal section of the embodiment of a sensor device according to the invention mounted on a motor vehicle body.
Le dispositif de capteur 1 représenté aux figures 1 et 2 comprend principalement un boîtier 5 présentant une face supérieure 6 et une face inférieure 7. Ce boîtier renferme des moyens de détection et/ou de mesure de chocs. Ces moyens peuvent par exemple comprendre un accéléromètre.The sensor device 1 shown in Figures 1 and 2 mainly comprises a housing 5 having an upper face 6 and a lower face 7. This housing contains means for detecting and / or measuring impacts. These means may for example comprise an accelerometer.
Le dispositif de capteur est destiné à être fixé sur un organe 20 d'un véhicule automobile comme par exemple une porte. De préférence, le dispositif de capteur est destiné à être fixé sur l'organe dans une position déterminée ou prévue. Pour ce faire, l'organe destiné à recevoir le dispositif de capteur présente une interface comprenant une tôle 24 ou un élément similaire sur lequel est pratiqué un trou 21. Ce trou comprend une ouverture circulaire 22 dans lequel débouche une lumière oblongueThe sensor device is intended to be fixed on a member 20 of a motor vehicle such as a door. Preferably, the sensor device is intended to be fixed on the body in a specific or intended position. To do this, the member intended to receive the sensor device has an interface comprising a metal plate 24 or a similar element on which a hole 21 is made. This hole comprises a circular opening 22 into which an oblong slot opens.
23. Cette lumière s'étend par exemple selon un prolongement d'un rayon de l'ouverture circulaire de sorte que le trou présente un axe de symétrie.23. This light extends for example along an extension of a radius of the circular opening so that the hole has an axis of symmetry.
Le dispositif de capteur assure une fonction de sécurité dans le véhicule. Par exemple, il est utilisé pour déterminer s'il est nécessaire d'activer des systèmes actifs de sécurité dans le véhicule, comme par exemple, des systèmes pyrotechniques d'airbags ou de prétensionneurs de ceintures de sécurité. Cette détermination est notamment réalisée grâce aux signaux issus du dispositif de capteur. Ainsi, il est nécessaire que ces signaux soient aussi représentatifs que possible des chocs et/ou accélérations subis par le véhicule. Aussi, il est très important que le dispositif de capteur soit solidement ancré au véhicule et qu'il le demeure pendant toute la durée de vie du véhicule et que le dispositif de capteur soit positionné sur le véhicule dans la position de montage prévue. Le dispositif de capteur selon l'invention présente des moyens pour assurer ces conditions.The sensor device provides a safety function in the vehicle. For example, it is used to determine whether it is necessary to activate active safety systems in the vehicle, such as pyrotechnic airbag systems or seat belt pretensioners. This determination is made in particular by the signals from the sensor device. Thus, it is necessary for these signals to be as representative as possible of the shocks and / or accelerations experienced by the vehicle. Also, it is very important that the sensor device is securely anchored to the vehicle and remains so throughout the life of the vehicle and that the sensor device is positioned on the vehicle in the intended mounting position. The sensor device according to the invention has means for ensuring these conditions.
Pour ce faire, le dispositif de capteur présente des moyens de fixation et des moyens de détrompage de montage. Par exemple, les moyens de détrompage permettent que lorsque le dispositif de capteur est mal positionné sur l'organe, il ne peut occuper qu'une position suffisamment différente de la position correcte de sorte qu'un monteur ou un utilisateur devrait pouvoir remarquer le défaut de montage.To do this, the sensor device has fastening means and mounting keying means. For example, the foolproof means allow that when the sensor device is positioned incorrectly on the member, it can occupy only a position sufficiently different from the correct position so that a fitter or a user should be able to notice the defect mounting.
Les moyens de fixation comprennent un trou cylindrique traversant le boîtier 5 de la face supérieure 6 à la face inférieure 7, un écrou 8 mobile selon une liaison glissière entre deux butées dans ce trou cylindrique, l'écrou présentant une forme sensiblement de révolution avec un épaulement 9 de diamètre légèrement inférieur au diamètre de l'ouverture circulaire 22. L'écrou présente aussi deux méplats 10. La cote sur plats de l'écrou est légèrement inférieure à la largeur de la rainure oblongue. Le vissage d'une vis 40 dans l'écrou permet, la tête de vis prenant appui sur la face supérieure du boîtier, de rapprocher l'épaulement de l'écrou de la-face inférieure du boîtier et de serrer entre ces deux éléments la portion de tôle située au voisinage de la lumière oblongue 23. Ainsi, le capteur peut être fixé solidement sur la tôle 24. Les moyens de détrompage 2 prévus sur le dispositif de capteur sont localisés au niveau de la face inférieure 7 du boîtier qui est destinée à venir en contact avec la tôle. Ils comprennent une forme en T se présentant comme une extrusion sensiblement perpendiculaire à la face inférieure et présentant une section en T. Cette forme en T est agencée sur le boîtier de manière à ce que l'écrou soit disposé au dessus du T lorsque l'on regarde la face inférieure. La hauteur de cette forme est sensiblement plus importante que l'épaisseur de la tôle. Cette forme en T constitue un premier moyen de détrompage permettant d'indiquer au monteur la position correcte de montage du capteur. En effet, lorsque le dispositif de capteur est dans sa position correcte, les moyens de détrompage 2 et, notamment la forme en T, viennent se positionner dans l'ouverture circulaire du trou pratiqué sur la tôle, chacune des trois extrémités de la forme en T venant sensiblement jusqu'au bord de l'ouverture circulaire. Ainsi, l'ouverture circulaire constitue un moyen de détrompage prévu sur l'organe et coopérant avec les moyens de détrompage 2 prévus sur le dispositif de capteur. Cependant, ces moyens de détrompage n'interdisent pas de monter le capteur à l'envers : c'est-à-dire avec la forme en T en contact avec la tôle dans une zone opposée à l'ouverture circulaire relativement à la rainure oblongue 23. Si un capteur est monté de cette façon, il ne sera cependant pas bien positionné et pas solidement ancré sur la tôle. En outre, il présentera une position différente de celle qu'il présenterait s'il était correctement monté. En effet, la face de la tôle ne peut alors pas être plaquée contre la face 7 du dispositif de capteur. En pratique, on remarque qu'un tel défaut de montage peut passer inaperçu pour un monteur ou un utilisateur.The fastening means comprise a cylindrical hole through the casing 5 from the upper face 6 to the lower face 7, a movable nut 8 according to a sliding connection between two stops in this cylindrical hole, the nut having a shape substantially of revolution with a shoulder 9 of diameter slightly less than the diameter of the circular opening 22. The nut also has two flats 10. The flat dimension of the nut is slightly less than the width of the oblong groove. The screwing of a screw 40 in the nut allows, the screw head bearing on the upper face of the housing, to bring the shoulder of the nut from the lower face of the housing and to clamp between these two elements. portion of sheet located in the vicinity of the oblong slot 23. Thus, the sensor can be fixed firmly on the sheet 24. The polarizing means 2 provided on the sensor device are located at the lower face 7 of the housing which is intended to come into contact with the sheet. They comprise a T-shaped extrusion substantially perpendicular to the lower face and having a T-section. This T-shape is arranged on the housing so that the nut is disposed above the T when the we look at the underside. The height of this form is substantially greater than the thickness of the sheet. This T-shape is a first polarizing means for indicating to the editor the correct mounting position of the sensor. Indeed, when the sensor device is in its correct position, the keying means 2 and, in particular the T-shaped, are positioned in the circular opening of the hole made on the sheet, each of the three ends of the form in T substantially to the edge of the circular opening. Thus, the circular opening is a polarizing means provided on the member and cooperating with the keying means 2 provided on the sensor device. However, these polarizing means do not prohibit mounting the sensor upside down: that is to say with the T-shape in contact with the sheet in an area opposite to the circular opening relative to the oblong groove 23. If a sensor is mounted this way, it will not be properly positioned and not securely anchored to the sheet. In addition, it will present a position different from that which it would present if it was correctly mounted. Indeed, the face of the sheet can not be pressed against the face 7 of the sensor device. In practice, we note that such a mounting fault may go unnoticed for an editor or a user.
Pour remédier à ces problèmes, les moyens de détrompage comprennent aussi des moyens 3 d'interférence de montage. Ces moyens d'interférence de montage ont pour fonction de ne permettre le montage et la fixation du dispositif de capteur dans une seule position : celle prévue et d'interdire toute possibilité de montage et/ou de fixation du dispositif de capteur dans une position autre que celle prévue.To remedy these problems, the foolproofing means also comprise mounting interference means 3. These mounting interference means have the function of not allowing the mounting and fixing of the sensor device in a single position: that provided and prohibit any possibility of mounting and / or fixing the sensor device in a position other than that provided.
Des moyens d'interférence de montage prévus sur le dispositif de capteur coopèrent avec des moyens d'interférence de montage prévus sur l'organe et constitués par les formes du trou pratiqué dans la tôle. Les moyens d'interférence de montage prévus sur le dispositif de capteur comprennent une première paroi 4 se présentant comme une extrusion sensiblement perpendiculaire à la face inférieure du boîtier. Cette première paroi présente une courbure dont le centre est situé sur l'axe de l'écrou 8. L'extrémité haute de la paroi (relativement à la face inférieure) est sensiblement au même niveau que l'épaulement 9 lorsque celui-ci est le plus éloigné de la face inférieure. La distance entre cette première paroi et l'épaulement est de préférence inférieure à l'épaisseur de la tôle. La longueur de cette première paroi (mesurée parallèlement à la face inférieure) est de préférence supérieure voire très supérieure à la largeur de la lumière oblongue.Mounting interference means provided on the sensor device co-operate with mounting interference means provided on the member and formed by the shapes of the hole in the sheet. The mounting interference means provided on the sensor device comprises a first wall 4 which is an extrusion substantially perpendicular to the underside of the housing. This first wall has a curvature whose center is located on the axis of the nut 8. The upper end of the wall (relative to the lower face) is substantially at the same level as the shoulder 9 when it is the farthest from the underside. The distance between this first wall and the shoulder is preferably less than the thickness of the sheet. The length of this first wall (measured parallel to the lower face) is preferably greater than or even greater than the width of the oblong slot.
Les moyens d'interférence prévus sur le dispositif de capteur comprennent aussi une deuxième paroi 33 reliant une première extrémité de la première paroi à une première extrémité de la barre supérieure de la forme en T et une troisième paroi 34 reliant une deuxième extrémité de la première paroi à une deuxième extrémité de la barre supérieure de la forme en T. Tous ces moyens d'interférence sont dimensionnés entre eux pour ne permettre le montage et/ou la fixation du dispositif de capteur que dans une position prévue par rapport à l'organe. En particulier, les moyens d'interférence prévus sur le dispositif de capteur sont dimensionnés relativement au trou pratiqué sur la tôle et à l'épaisseur de la tôle pour ne permettre le montage et/ou la fixation du dispositif de capteur que dans une position prévue par rapport à l'organe. Ainsi, le capteur ne peut de préférence même pas être maintenu en équilibre instable sur l'organe.The interference means provided on the sensor device also comprise a second wall 33 connecting a first end of the first wall to a first end of the upper bar of the T-shape and a third wall 34 connecting a second end of the first wall at a second end of the upper bar of the T-shaped. All these interference means are dimensioned together to allow the mounting and / or the attachment of the sensor device only in a position provided with respect to the organ . In particular, the interference means provided on the sensor device are dimensioned relative to the hole made on the sheet and to the thickness of the sheet to allow the mounting and / or fixing of the sensor device only in a position provided relative to the organ. Thus, the sensor can preferably not even be kept in unstable equilibrium on the organ.
Pour effectuer ce montage, on introduit d'abord l'épaulement 9 dans l'ouverture circulaire de la tôle, puis on incline le dispositif de capteur relativement à la tôle de manière à ce que l'épaulement passe partiellement de l'autre côté de la tôle. On déplace ensuite le dispositif de capteur de manière à ce que l'écrou vienne dans la lumière oblongue et de manière à positionner les moyens de détrompage prévus sur le dispositif de capteur dans l'ouverture circulaire.To carry out this assembly, the shoulder 9 is introduced first into the circular opening of the sheet, then the sensor device is inclined relative to the sheet so that the shoulder passes partially on the other side of the sheet. prison. The sensor device is then moved so that the nut comes into the oblong slot and so as to position the foolproofing means provided on the sensor device in the circular opening.
Bien entendu, les moyens d'interférence de montage pourraient aussi avoir d'autres formes. Notamment, la première paroi pourrait être droite et non courbée, et les deuxième et troisième parois pourraient être courbées et non droites, par exemple selon une courbe sensiblement concentrique à l'ouverture circulaire 22 lorsque le dispositif de capteur est fixé sur la tôle.Of course, the mounting interference means could also have other forms. In particular, the first wall could be straight and not curved, and the second and third walls could be curved and not straight, for example in a substantially concentric curve to the circular opening 22 when the sensor device is fixed on the sheet.
En outre, le volume défini par la barre supérieure 31 de la forme en T et par les première, deuxième et troisième parois, pourrait être rempli de matière.In addition, the volume defined by the upper bar 31 of the T-shape and the first, second and third walls could be filled with material.
Le boîtier est de préférence réalisé par moulage. The casing is preferably made by molding.

Claims

Revendications : Claims:
1. Dispositif (1) de capteur d'un véhicule automobile comprenant des moyens (2) de détrompage de montage, caractérisé en ce que les moyens de détrompage comprennent des moyens d'interférence (3) de montage interdisant toute possibilité de montage du capteur dans une position autre qu'une position prévue.1. Device (1) for sensor of a motor vehicle comprising means (2) for mounting keying, characterized in that the polarizing means comprise mounting interference means (3) prohibiting any possibility of mounting the sensor in a position other than a predicted position.
2. Dispositif de capteur selon la revendication 1 , caractérisé en ce qu'il comprend un écrou (8) muni d'un épaulement cylindrique (9) et une face inférieure (7) et en ce que les moyens d'interférence de montage comprennent une première paroi (4) s'étendant sensiblement perpendiculairement à la face inférieure, depuis la face inférieure, sensiblement jusqu'à l'épaulement lorsque l'épaulement est le plus éloigné de la face inférieure.2. Sensor device according to claim 1, characterized in that it comprises a nut (8) provided with a cylindrical shoulder (9) and a lower face (7) and in that the mounting interference means comprise a first wall (4) extending substantially perpendicular to the lower face, from the lower face, substantially to the shoulder when the shoulder is farthest from the lower face.
3. Dispositif de capteur selon la revendication 2, caractérisé en ce que la première paroi est à sections au moins sensiblement concentriques aux sections de l'écrou.3. Sensor device according to claim 2, characterized in that the first wall has sections at least substantially concentric to the sections of the nut.
4. Dispositif de capteur selon l'une des revendications précédentes, caractérisé en ce que les moyens de détrompage comprennent une forme (30) s'étendant sensiblement perpendiculairement à la face inférieure depuis la face inférieure et ayant une section en T.4. Sensor device according to one of the preceding claims, characterized in that the polarizing means comprise a shape (30) extending substantially perpendicular to the lower face from the lower face and having a T-section.
5. Dispositif de capteur selon la revendication précédente, caractérisé en ce que les moyens d'interférence de montage comprennent une deuxième paroi (33) s'étendant d'une première extrémité de la barre supérieure de la forme en T à une première extrémité de la première paroi et une troisième paroi (34) s'étendant de la deuxième extrémité de la barre supérieure de la forme en T à la deuxième extrémité de la première paroi. 5. Sensor device according to the preceding claim, characterized in that the mounting interference means comprise a second wall (33) extending from a first end of the upper bar of the T-shape to a first end of the first wall and a third wall (34) extending from the second end of the upper bar of the T-shape to the second end of the first wall.
6. Dispositif de capteur selon l'une des revendications précédentes, caractérisé en ce que le dispositif de capteur est un dispositif pour détecter et/ou mesurer des chocs.6. Sensor device according to one of the preceding claims, characterized in that the sensor device is a device for detecting and / or measuring shocks.
7. Dispositif de capteur selon l'une des revendications précédentes, caractérisé en ce que le dispositif de capteur comprend un accéléromètre.7. Sensor device according to one of the preceding claims, characterized in that the sensor device comprises an accelerometer.
8. Agencement (50) comprenant un dispositif de capteur selon l'une des revendications précédentes et un organe (20) de véhicule automobile, le dispositif de capteur étant fixé sur l'organe.8. Arrangement (50) comprising a sensor device according to one of the preceding claims and a member (20) of a motor vehicle, the sensor device being fixed on the body.
9. Agencement selon la revendication précédente, caractérisé en ce que l'organe présente une interface de fixation du dispositif de capteur comprenant un trou (21) réalisé dans une tôle (24), le trou comprenant une ouverture circulaire (22) dans lequel débouche une lumière oblongue (23).9. Arrangement according to the preceding claim, characterized in that the member has an attachment interface of the sensor device comprising a hole (21) formed in a sheet (24), the hole comprising a circular opening (22) in which opens an oblong light (23).
10. Agencement selon la revendication précédente, caractérisé en ce que le dispositif de capteur comprend un écrou muni d'un épaulement cylindrique et une face inférieure, en ce que les moyens d'interférence de montage comprennent une première paroi s'étendant sensiblement perpendiculairement à la face inférieure, depuis la face inférieure, sensiblement jusqu'à l'épaulement et en ce que la distance de la tôle à la première paroi est inférieure à l'épaisseur de la tôle lorsque l'épaulement est le plus éloigné de la face inférieure.10. Arrangement according to the preceding claim, characterized in that the sensor device comprises a nut provided with a cylindrical shoulder and a lower face, in that the interference interference means comprise a first wall extending substantially perpendicular to the lower face, from the lower face, substantially to the shoulder and in that the distance from the sheet to the first wall is less than the thickness of the sheet when the shoulder is farthest from the underside; .
11. Agencement selon la revendication 9 ou 10, caractérisé en ce que le dispositif de capteur comprend un écrou muni d'un épaulement cylindrique et une face inférieure, en ce que les moyens d'interférence de montage comprennent une première paroi s'étendant sensiblement perpendiculairement à la face inférieure, la longueur de cette première paroi mesurée parallèlement à la face inférieure étant supérieure à la largeur de la lumière oblongue.11. Arrangement according to claim 9 or 10, characterized in that the sensor device comprises a nut provided with a cylindrical shoulder and a lower face, in that the mounting interference means comprise a first wall. extending substantially perpendicular to the lower face, the length of this first wall measured parallel to the lower face being greater than the width of the oblong slot.
12. Véhicule automobile comprenant un agencement (50) selon l'une des revendications 8 à 11. Motor vehicle comprising an arrangement (50) according to one of claims 8 to 11.
PCT/FR2008/001402 2007-10-08 2008-10-08 Motor vehicle impact sensor device and arrangement of such a device on a motor vehicle component WO2009080916A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08864213A EP2198250A1 (en) 2007-10-08 2008-10-08 Motor vehicle impact sensor device and arrangement of such a device on a motor vehicle component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0707020 2007-10-08
FR0707020A FR2922025B1 (en) 2007-10-08 2007-10-08 IMPACT SENSOR DEVICE OF A MOTOR VEHICLE AND ARRANGEMENT OF SUCH A DEVICE ON A MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
WO2009080916A1 true WO2009080916A1 (en) 2009-07-02
WO2009080916A8 WO2009080916A8 (en) 2009-08-20

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PCT/FR2008/001402 WO2009080916A1 (en) 2007-10-08 2008-10-08 Motor vehicle impact sensor device and arrangement of such a device on a motor vehicle component

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EP (1) EP2198250A1 (en)
FR (1) FR2922025B1 (en)
WO (1) WO2009080916A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102012112362B3 (en) * 2012-12-17 2014-05-22 Haldex Brake Products Gmbh Valve with a fastening device
EP3161334A4 (en) * 2014-06-25 2018-03-14 Autoliv Development AB Vehicle sensor holder arrangement

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4012686A (en) * 1971-03-18 1977-03-15 Optotechnik, Gmbh Power supply for illuminated instrument
FR2696392A1 (en) * 1992-10-06 1994-04-08 Peugeot Dashboard mounted airbag safety system for automotive vehicle - has detachable airbag container, with cover retained by weak rivets, secured to underlying structural member
JP2005106238A (en) * 2003-10-01 2005-04-21 Ntn Corp Bearing unit for vehicle with rotational speed detection device
EP1536168A2 (en) * 2003-11-28 2005-06-01 Kayaba Industry Co., Ltd. Mounting structure and method of mounting a component in a structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012686A (en) * 1971-03-18 1977-03-15 Optotechnik, Gmbh Power supply for illuminated instrument
FR2696392A1 (en) * 1992-10-06 1994-04-08 Peugeot Dashboard mounted airbag safety system for automotive vehicle - has detachable airbag container, with cover retained by weak rivets, secured to underlying structural member
JP2005106238A (en) * 2003-10-01 2005-04-21 Ntn Corp Bearing unit for vehicle with rotational speed detection device
EP1536168A2 (en) * 2003-11-28 2005-06-01 Kayaba Industry Co., Ltd. Mounting structure and method of mounting a component in a structure

Also Published As

Publication number Publication date
FR2922025B1 (en) 2011-04-15
FR2922025A1 (en) 2009-04-10
EP2198250A1 (en) 2010-06-23
WO2009080916A8 (en) 2009-08-20

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