EP3084372A1 - Device for measuring and indicating the loading of a vehicle and method for manufacturing such a device - Google Patents

Device for measuring and indicating the loading of a vehicle and method for manufacturing such a device

Info

Publication number
EP3084372A1
EP3084372A1 EP14821715.1A EP14821715A EP3084372A1 EP 3084372 A1 EP3084372 A1 EP 3084372A1 EP 14821715 A EP14821715 A EP 14821715A EP 3084372 A1 EP3084372 A1 EP 3084372A1
Authority
EP
European Patent Office
Prior art keywords
series
measuring
slab
load
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14821715.1A
Other languages
German (de)
French (fr)
Inventor
Gilles Berthias
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP3084372A1 publication Critical patent/EP3084372A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles

Definitions

  • the present invention relates to a device for measuring and indicating the loading of a motor vehicle, as well as to the manufacturing process of this device.
  • the invention also relates to a motor vehicle comprising such a device.
  • the invention belongs to the field of equipment for measuring and indicating the loading of motor vehicles.
  • a motor vehicle is certified to carry a maximum load the value of which must not be exceeded.
  • Document FR-A-2 627 584 discloses a device for measuring and indicating the load of a vehicle, consisting of a digital indicator and a load-receiving platform disposed on a lifting apron disposed at the rear. of the vehicle.
  • this known device does not allow to know the distribution of this load in the vehicle.
  • a poor distribution of the load in the vehicle is a danger because it may unbalance the vehicle when moving.
  • the invention aims to overcome the disadvantages of the prior art.
  • the present invention proposes a device for measuring the loading of a motor vehicle comprising a load measuring slab, this slab being remarkable in that it comprises means for measuring the surface distribution of the load.
  • the invention makes it possible, in a vehicle, to know the surface distribution of a load.
  • the measuring means mentioned above comprise a first sheet provided with a first series of electrically conductive yarns and a second sheet provided with a second series of electrically conductive yarns. According to a particular characteristic, these measuring means contain a semiconductor ink disposed between the first and second sheets.
  • the semiconductor ink makes it possible to locally measure the load applied to the slab.
  • the first series of wires, the second series of wires and the semi-conductive ink form a network of cells.
  • the first series of conductive wires is arranged transversely to the second series of conductive wires.
  • the slab mentioned above is made of a flexible material.
  • the slab can adapt more easily to the surface on which it rests and can be rolled to be stored when not in use.
  • the device further comprises an interface means adapted to retrieve information on the surface distribution of this load.
  • the user of the device can be informed of the distribution of the load in a vehicle.
  • this interface means is a display screen.
  • the invention also relates to a method of manufacturing a slab for measuring the loading of a vehicle, remarkable in that it has the following steps:
  • this method makes it possible to manufacture a slab of a device for knowing the surface distribution of a load disposed on this slab.
  • this method also has a step of arranging the first series of son transversely to the second series of son.
  • the invention also relates to a motor vehicle comprising at least one device for measuring the load as briefly described above.
  • FIG. 1 shows a device for measuring the loading of a motor vehicle according to a particular embodiment of the invention
  • FIG. 2 shows in enlarged view a part of the device of FIG. 1;
  • FIG. 3 to 5 show steps of a method of manufacturing a slab for measuring the loading of a motor vehicle, in a particular embodiment of the invention.
  • FIG. 1 shows a device for measuring the loading of a motor vehicle comprising a load measurement slab 100, an interface means 150 and an electronic module 160.
  • the electronic module 160 is connected to the slab 100 and to the means interface 150, for example by electric cables.
  • the measurement slab 100 comprises a first sheet 120 and a second sheet 130 arranged in a protective material 110 and a semiconductor ink 140.
  • the ink 140 has the advantage of having an electrical resistance inversely proportional to the pressure applied to it.
  • the semiconductor ink 140 may be based on a conductive polymer, such as, for example, polythiophene (PT), polyaniline (PAni) or polypyrrole (PPy).
  • a conductive polymer such as, for example, polythiophene (PT), polyaniline (PAni) or polypyrrole (PPy).
  • the ink 140 may contain conductive particles, for example metal particles, suspended in polymeric resins having conductive properties or in conductive polymers dissolved in a solvent.
  • the first sheet 120 is provided with a series of conductive wires 122 of electricity.
  • the second sheet 130 includes another series of conductive wires 132 of electricity.
  • the semiconductor ink 140 is disposed between the sheets 120 and
  • the distance between the conductive son 122 and 132 varies depending on the load exerted on the slab 100. The shorter this distance, the lower the electrical resistance of the ink 140.
  • the two sheets 120 and 130, as well as the ink 140 contribute to measuring the surface distribution of a load in the vehicle.
  • the conductive wires 122 are arranged transversely to the conductive wires 132, so as to form a network 145 of cells (illustrated in Figure 2 described below).
  • the first and second sheets 120 and 130 are flexible, for example made of a material such as flexible polyester.
  • the protective material 1 10 may also be a flexible material, for example rubber.
  • the slab 100 can be flexible and can in this case adapt more easily to the surface on which it rests.
  • the slab 100 can also be rolled to take up less space when not used for measuring a load.
  • the slab 100 may be rigid, which may be advantageous in the case where it would be disposed on a support having flatness defects, holes or stiffness variations between certain areas of the support.
  • the shape of the slab 100 can be adapted to the area whose load is to be measured.
  • the slab 100 may for example have a shape adapted to that of the trunk floor of a vehicle.
  • the interface means 150 makes it possible to provide the user of the device with information relating to the surface distribution of the load on the slab 100.
  • This information can be communicated in sound and / or visual form: numerical values, graphics, alerts, etc.
  • the interface means 150 is a display screen indicating that a load is positioned on the right side of the slab 100.
  • the interface means 150 thus makes it possible to help the user to properly distribute a load in the vehicle.
  • an audible and / or visual alert may be sent to the user of the vehicle when the measured mass of the load is greater than an authorized mass or where the load distribution may unbalance the vehicle.
  • This alert can be coupled to a vehicle security system to prohibit starting.
  • a trajectory control system known per se, for example of type ESP (Electronic Stability Control), can adapt the behavior of the vehicle according to the mass of the load or its distribution in the vehicle.
  • ESP Electronic Stability Control
  • FIG. 2 shows the measurement slab 100 and the network 145 of cells formed by the conducting wires 122 and 132 of this slab 100.
  • the electronic module 160 analyzes the value of the electric current flowing in each of the conducting wires 122 and 132 to deduce the charge at each point of the network 145 of cells.
  • a cell corresponds to a point of intersection between the wires 122 and 132.
  • the measurement of the surface charge distribution is performed by injecting an electric current, sent under a voltage of between 1 and 5 volts, into one of the wires 122. By measuring the current in each of the wires 132, it is therefore possible to calculate the electrical resistance of the ink 140 at the points of intersection between the wires 122 and 132.
  • the electronic module 160 makes it possible to measure the pressure applied to each of the cells, one after the other.
  • the total load applied to the slab 100 can be obtained by the electronic module 160 by calculating the integral of the measurements of effort or pressure at each point of the network 145 of cells.
  • Figures 3 to 5 show steps of a method of manufacturing the measurement panel 100.
  • the series of electrically conductive wires 122 is disposed in the first sheet 120 and the other series of electrically conductive wires 132 is disposed in the second sheet 130.
  • the sheets 120 and 130 are assembled so that the conductive wires 122 of the first sheet 120 are arranged transversely to the conductive wires 132 of the second sheet 130.
  • the semiconductor ink 140 (shown in FIG. 4) is deposited between the sheets 120 and 130.
  • the ink 140 provides electrical contact between the leads 122 and 132 to form the cell array 145.
  • the sheets 120 and 130 are then embedded in the protective material 1 10.
  • the device according to the invention and its manufacturing method can measure, in a vehicle, the surface distribution of a load.

Abstract

This device for measuring the loading of a motor vehicle comprises a load measuring slab (100). This slab (100) comprises means (120, 130, 140) for measuring the distribution of the load over the surface.

Description

DISPOSITIF POUR LA MESURE ET L'INDICATION DU CHARGEMENT D'UN VEHICULE ET PROCEDE DE FABRICATION D'UN TEL DISPOSITIF  DEVICE FOR MEASURING AND INDICATING THE LOADING OF A VEHICLE AND METHOD OF MANUFACTURING SUCH A DEVICE
La présente invention se rapporte à un dispositif pour la mesure et l'indication du chargement d'un véhicule automobile, ainsi qu'au procédé de fabrication de ce dispositif. L'invention concerne également un véhicule automobile comportant un tel dispositif. The present invention relates to a device for measuring and indicating the loading of a motor vehicle, as well as to the manufacturing process of this device. The invention also relates to a motor vehicle comprising such a device.
L'invention appartient au domaine des équipements pour la mesure et l'indication du chargement des véhicules automobiles.  The invention belongs to the field of equipment for measuring and indicating the loading of motor vehicles.
Habituellement, un véhicule automobile est homologué pour transporter une charge maximale dont la valeur ne doit pas être dépassée.  Usually, a motor vehicle is certified to carry a maximum load the value of which must not be exceeded.
Il est par conséquent important que l'utilisateur de ce véhicule puisse connaître la masse embarquée dans le véhicule, en particulier lors de son chargement.  It is therefore important that the user of this vehicle can know the weight embedded in the vehicle, especially when loading.
On connaît du document FR-A-2 627 584 un dispositif de mesure et d'indication de charge d'un véhicule, constitué d'un indicateur numérique et d'un plateau récepteur de charge disposé sur un tablier élévateur disposé à l'arrière du véhicule.  Document FR-A-2 627 584 discloses a device for measuring and indicating the load of a vehicle, consisting of a digital indicator and a load-receiving platform disposed on a lifting apron disposed at the rear. of the vehicle.
Cependant, ce dispositif connu ne permet pas de connaître la répartition de cette charge dans le véhicule. Une mauvaise répartition de la charge dans le véhicule constitue un danger car elle risque de déséquilibrer le véhicule lors de son déplacement. Il y a par ailleurs un risque de perte de contrôle de la trajectoire ou de retournement du véhicule, par exemple lors d'un virage.  However, this known device does not allow to know the distribution of this load in the vehicle. A poor distribution of the load in the vehicle is a danger because it may unbalance the vehicle when moving. There is also a risk of loss of control of the trajectory or reversal of the vehicle, for example during a turn.
L'invention a pour but de remédier aux inconvénients de l'art antérieur. The invention aims to overcome the disadvantages of the prior art.
Dans ce but, la présente invention propose un dispositif pour la mesure du chargement d'un véhicule automobile comportant une dalle de mesure de charge, cette dalle étant remarquable en ce qu'elle comporte des moyens de mesure de la répartition surfacique de la charge. For this purpose, the present invention proposes a device for measuring the loading of a motor vehicle comprising a load measuring slab, this slab being remarkable in that it comprises means for measuring the surface distribution of the load.
Ainsi, l'invention permet, dans un véhicule, de connaître la répartition surfacique d'une charge.  Thus, the invention makes it possible, in a vehicle, to know the surface distribution of a load.
Selon une caractéristique particulière, les moyens de mesure mentionnés plus haut comportent un premier feuillet muni d'une première série de fils conducteurs d'électricité et un second feuillet muni d'une seconde série de fils conducteurs d'électricité. Selon une caractéristique particulière, ces moyens de mesure contiennent une encre semi-conductrice disposée entre les premier et second feuillets. According to a particular characteristic, the measuring means mentioned above comprise a first sheet provided with a first series of electrically conductive yarns and a second sheet provided with a second series of electrically conductive yarns. According to a particular characteristic, these measuring means contain a semiconductor ink disposed between the first and second sheets.
Ainsi, l'encre semi-conductrice permet de mesurer localement la charge appliquée sur la dalle.  Thus, the semiconductor ink makes it possible to locally measure the load applied to the slab.
Selon une caractéristique particulière, la première série de fils, la seconde série de fils et l'encre semi-conductrice forment un réseau de cellules.  According to a particular characteristic, the first series of wires, the second series of wires and the semi-conductive ink form a network of cells.
Selon une caractéristique particulière, la première série de fils conducteurs est disposée transversalement à la seconde série de fils conducteurs.  According to a particular characteristic, the first series of conductive wires is arranged transversely to the second series of conductive wires.
Selon une caractéristique particulière, la dalle mentionnée précédemment est réalisée dans un matériau souple.  According to a particular characteristic, the slab mentioned above is made of a flexible material.
Ainsi, la dalle peut s'adapter plus facilement à la surface sur laquelle elle repose et peut être roulée pour être rangée lorsqu'elle n'est pas utilisée.  Thus, the slab can adapt more easily to the surface on which it rests and can be rolled to be stored when not in use.
Selon une caractéristique particulière, le dispositif comporte en outre un moyen d'interface adapté à restituer une information sur la répartition surfacique de cette charge.  According to a particular characteristic, the device further comprises an interface means adapted to retrieve information on the surface distribution of this load.
Ainsi, l'utilisateur du dispositif peut être informé de la répartition de la charge dans un véhicule.  Thus, the user of the device can be informed of the distribution of the load in a vehicle.
Selon une caractéristique particulière, ce moyen d'interface est un écran d'affichage.  According to a particular characteristic, this interface means is a display screen.
L'invention concerne également un procédé de fabrication d'une dalle pour la mesure du chargement d'un véhicule, remarquable en ce qu'il présente des étapes consistant à :  The invention also relates to a method of manufacturing a slab for measuring the loading of a vehicle, remarkable in that it has the following steps:
disposer une première série de fils conducteurs d'électricité dans un premier feuillet ;  disposing a first series of electrically conductive wires in a first sheet;
disposer une seconde série de fils conducteurs d'électricité dans un second feuillet ;  disposing a second series of electrically conductive yarns in a second sheet;
- déposer une encre semi-conductrice entre les premier et second feuillets ;  depositing a semiconductor ink between the first and second sheets;
assembler les premier et second feuillets pour former cette dalle. Ainsi, ce procédé permet de fabriquer une dalle d'un dispositif pour connaître la répartition surfacique d'une charge disposée sur cette dalle.  assemble the first and second sheets to form this slab. Thus, this method makes it possible to manufacture a slab of a device for knowing the surface distribution of a load disposed on this slab.
Selon une caractéristique particulière, ce procédé présente en outre une étape consistant à disposer la première série de fils transversalement à la seconde série de fils. Dans le même but, l'invention a aussi pour objet un véhicule automobile comportant au moins un dispositif pour la mesure du chargement tel que brièvement décrit plus haut. According to a particular feature, this method also has a step of arranging the first series of son transversely to the second series of son. For the same purpose, the invention also relates to a motor vehicle comprising at least one device for measuring the load as briefly described above.
L'invention sera mieux comprise et d'autres aspects et avantages apparaîtront plus clairement à la lecture de la description qui suit d'un mode particulier de réalisation, donné à titre d'exemple nullement limitatif et en référence aux dessins qui l'accompagnent, dans lesquels :  The invention will be better understood and other aspects and advantages will appear more clearly on reading the following description of a particular embodiment, given by way of non-limiting example and with reference to the accompanying drawings. wherein :
- la figure 1 présente un dispositif de mesure du chargement d'un véhicule automobile suivant un mode particulier de réalisation de l'invention ;  - Figure 1 shows a device for measuring the loading of a motor vehicle according to a particular embodiment of the invention;
- la figure 2 présente en vue agrandie une partie du dispositif de la figure 1 ; et  FIG. 2 shows in enlarged view a part of the device of FIG. 1; and
- les figures 3 à 5 présentent des étapes d'un procédé de fabrication d'une dalle pour la mesure du chargement d'un véhicule automobile, dans un mode particulier de réalisation de l'invention. - Figures 3 to 5 show steps of a method of manufacturing a slab for measuring the loading of a motor vehicle, in a particular embodiment of the invention.
La figure 1 présente un dispositif pour la mesure du chargement d'un véhicule automobile comportant une dalle 100 de mesure de charge, un moyen d'interface 150 et un module électronique 160. Le module électronique 160 est connecté à la dalle 100 et au moyen d'interface 150, par exemple par des câbles électriques. FIG. 1 shows a device for measuring the loading of a motor vehicle comprising a load measurement slab 100, an interface means 150 and an electronic module 160. The electronic module 160 is connected to the slab 100 and to the means interface 150, for example by electric cables.
La dalle 100 de mesure comporte un premier feuillet 120 et un second feuillet 130 disposés dans un matériau protecteur 1 10 et une encre 140 semi-conductrice. L'encre 140 présente l'avantage d'avoir une résistance électrique inversement proportionnelle à la pression qui lui est appliquée.  The measurement slab 100 comprises a first sheet 120 and a second sheet 130 arranged in a protective material 110 and a semiconductor ink 140. The ink 140 has the advantage of having an electrical resistance inversely proportional to the pressure applied to it.
L'encre 140 semi-conductrice peut être à base d'un polymère conducteur, tel que par exemple le polythiophène (PT), la polyaniline (PAni) ou le polypyrrole (PPy). En variante, l'encre 140 peut contenir des particules conductrices, par exemple des particules métalliques, en suspension dans des résines polymères ayant des propriétés conductrices ou dans des polymères conducteurs dissous dans un solvant.  The semiconductor ink 140 may be based on a conductive polymer, such as, for example, polythiophene (PT), polyaniline (PAni) or polypyrrole (PPy). Alternatively, the ink 140 may contain conductive particles, for example metal particles, suspended in polymeric resins having conductive properties or in conductive polymers dissolved in a solvent.
Le premier feuillet 120 est muni d'une série de fils conducteurs 122 d'électricité.  The first sheet 120 is provided with a series of conductive wires 122 of electricity.
Le second feuillet 130 comporte une autre série de fils conducteurs 132 d'électricité.  The second sheet 130 includes another series of conductive wires 132 of electricity.
L'encre semi-conductrice 140 est disposée entre les feuillets 120 et The semiconductor ink 140 is disposed between the sheets 120 and
130 de façon à assurer un contact électrique entre les fils conducteurs 122 du premier feuillet 120 et les fils conducteurs 132 du second feuillet 130. Par un effet de compression, la distance entre les fils conducteurs 122 et 132 varie en fonction de la charge exercée sur la dalle 100. Plus cette distance est faible, plus la résistance électrique de l'encre 140 est faible. 130 so as to ensure electrical contact between the conductive wires 122 of the first sheet 120 and the conductive wires 132 of the second sheet 130. By a compression effect, the distance between the conductive son 122 and 132 varies depending on the load exerted on the slab 100. The shorter this distance, the lower the electrical resistance of the ink 140.
Conformément à l'invention, les deux feuillets 120 et 130, ainsi que l'encre 140, concourent à mesurer la répartition surfacique d'une charge dans le véhicule.  According to the invention, the two sheets 120 and 130, as well as the ink 140, contribute to measuring the surface distribution of a load in the vehicle.
Les fils conducteurs 122 sont disposés transversalement aux fils conducteurs 132, de manière à former un réseau 145 de cellules (illustré sur la figure 2 décrite ci-après). Avantageusement, les premier et second feuillets 120 et 130 sont flexibles, par exemple réalisées dans un matériau tel que du polyester souple.  The conductive wires 122 are arranged transversely to the conductive wires 132, so as to form a network 145 of cells (illustrated in Figure 2 described below). Advantageously, the first and second sheets 120 and 130 are flexible, for example made of a material such as flexible polyester.
Le matériau protecteur 1 10 peut également être un matériau flexible, par exemple du caoutchouc.  The protective material 1 10 may also be a flexible material, for example rubber.
La dalle 100 peut être souple et peut dans ce cas s'adapter plus facilement à la surface sur laquelle elle repose. La dalle 100 peut aussi être roulée pour prendre moins de place lorsqu'elle n'est pas utilisée pour la mesure d'une charge.  The slab 100 can be flexible and can in this case adapt more easily to the surface on which it rests. The slab 100 can also be rolled to take up less space when not used for measuring a load.
En variante, la dalle 100 peut être rigide, ce qui peut être avantageux dans le cas où elle serait disposée sur un support présentant des défauts de planéité, des trous ou des variations de rigidité entre certaines zones du support.  Alternatively, the slab 100 may be rigid, which may be advantageous in the case where it would be disposed on a support having flatness defects, holes or stiffness variations between certain areas of the support.
La forme de la dalle 100 peut être adaptée à la zone dont on souhaite mesurer la charge. La dalle 100 peut par exemple avoir une forme adaptée à celle du plancher du coffre d'un véhicule.  The shape of the slab 100 can be adapted to the area whose load is to be measured. The slab 100 may for example have a shape adapted to that of the trunk floor of a vehicle.
Le moyen d'interface 150 permet de fournir à l'utilisateur du dispositif des informations en lien avec la répartition surfacique de la charge sur la dalle 100.  The interface means 150 makes it possible to provide the user of the device with information relating to the surface distribution of the load on the slab 100.
Ces informations peuvent être communiquées sous forme sonore et/ou visuelle : valeurs numériques, graphiques, alertes, etc  This information can be communicated in sound and / or visual form: numerical values, graphics, alerts, etc.
Par exemple, sur la figure 1 , le moyen d'interface 150 est un écran d'affichage indiquant qu'une charge est positionnée sur la partie droite de la dalle 100.  For example, in FIG. 1, the interface means 150 is a display screen indicating that a load is positioned on the right side of the slab 100.
Le moyen d'interface 150 permet ainsi d'aider l'utilisateur à répartir convenablement une charge dans le véhicule.  The interface means 150 thus makes it possible to help the user to properly distribute a load in the vehicle.
Par exemple, une alerte sonore et/ou visuelle peut être adressée à l'utilisateur du véhicule lorsque la masse mesurée de la charge est supérieure à une masse autorisée ou lorsque la répartition de la charge risque de déséquilibrer le véhicule. For example, an audible and / or visual alert may be sent to the user of the vehicle when the measured mass of the load is greater than an authorized mass or where the load distribution may unbalance the vehicle.
Cette alerte peut être couplée à un système de sécurité du véhicule pour en interdire le démarrage.  This alert can be coupled to a vehicle security system to prohibit starting.
Un système de contrôle de trajectoire, connu en soi, par exemple de type ESP (en anglais « Electronic Stability Control »), peut adapter le comportement du véhicule en fonction de la masse de la charge ou de sa répartition dans le véhicule.  A trajectory control system, known per se, for example of type ESP (Electronic Stability Control), can adapt the behavior of the vehicle according to the mass of the load or its distribution in the vehicle.
La figure 2 permet de visualiser la dalle 100 de mesure et le réseau 145 de cellules formé par les fils conducteurs 122 et 132 de cette dalle 100.  FIG. 2 shows the measurement slab 100 and the network 145 of cells formed by the conducting wires 122 and 132 of this slab 100.
La résistance électrique de l'encre 140 étant inversement proportionnelle à la pression exercée, lorsqu'une pression est appliquée sur le réseau 145 de cellules, le module électronique 160 analyse la valeur du courant électrique circulant dans chacun des fils conducteurs 122 et 132 pour en déduire la charge en chaque point du réseau 145 de cellules.  Since the electrical resistance of the ink 140 is inversely proportional to the pressure exerted, when a pressure is applied on the network 145 of cells, the electronic module 160 analyzes the value of the electric current flowing in each of the conducting wires 122 and 132 to deduce the charge at each point of the network 145 of cells.
Une cellule correspond à un point d'intersection entre les fils 122 et 132. La mesure de la répartition surfacique de charge est réalisée par injection d'un courant électrique, envoyé sous une tension comprise entre 1 et 5 volts, dans un des fils 122. En mesurant le courant dans chacun des fils 132, on peut donc calculer la résistance électrique de l'encre 140 aux points d'intersection entre les fils 122 et 132.  A cell corresponds to a point of intersection between the wires 122 and 132. The measurement of the surface charge distribution is performed by injecting an electric current, sent under a voltage of between 1 and 5 volts, into one of the wires 122. By measuring the current in each of the wires 132, it is therefore possible to calculate the electrical resistance of the ink 140 at the points of intersection between the wires 122 and 132.
Ainsi, en injectant un courant, successivement dans chacun des fils 122, le module électronique 160 permet de mesurer la pression appliquée sur chacune des cellules, les unes après les autres.  Thus, by injecting a current successively into each of the wires 122, the electronic module 160 makes it possible to measure the pressure applied to each of the cells, one after the other.
La charge totale appliquée sur la dalle 100 peut être obtenue par le module électronique 160 en calculant l'intégrale des mesures d'effort ou de pression en chaque point du réseau 145 de cellules.  The total load applied to the slab 100 can be obtained by the electronic module 160 by calculating the integral of the measurements of effort or pressure at each point of the network 145 of cells.
Les figures 3 à 5 présentent des étapes d'un procédé de fabrication de la dalle de mesure 100.  Figures 3 to 5 show steps of a method of manufacturing the measurement panel 100.
La série de fils 122 conducteurs d'électricité est disposée dans le premier feuillet 120 et l'autre série de fils 132 conducteurs d'électricité est disposée dans le second feuillet 130.  The series of electrically conductive wires 122 is disposed in the first sheet 120 and the other series of electrically conductive wires 132 is disposed in the second sheet 130.
Les feuillets 120 et 130 sont assemblés de façon que les fils conducteurs 122 du premier feuillet 120 soient disposés transversalement aux fils conducteurs 132 du second feuillet 130.  The sheets 120 and 130 are assembled so that the conductive wires 122 of the first sheet 120 are arranged transversely to the conductive wires 132 of the second sheet 130.
L'encre 140 semi-conductrice (représentée sur la figure 4) est déposée entre les feuillets 120 et 130. L'encre 140 assure un contact électrique entre les fils conducteurs 122 et 132, pour former le réseau 145 de cellules. The semiconductor ink 140 (shown in FIG. 4) is deposited between the sheets 120 and 130. The ink 140 provides electrical contact between the leads 122 and 132 to form the cell array 145.
Les feuillets 120 et 130 sont ensuite enrobés dans le matériau protecteur 1 10.  The sheets 120 and 130 are then embedded in the protective material 1 10.
Ainsi, le dispositif conforme à l'invention et son procédé de fabrication permettent de mesurer, dans un véhicule, la répartition surfacique d'une charge.  Thus, the device according to the invention and its manufacturing method can measure, in a vehicle, the surface distribution of a load.

Claims

REVENDICATIONS
1 . Dispositif pour la mesure du chargement d'un véhicule automobile comportant une dalle (100) de mesure de charge, ladite dalle (100) comportant des moyens de mesure (120, 130, 140) de la répartition surfacique de ladite charge, les moyens de mesure comportant un premier feuillet (120) muni d'une première série de fils (1 22) conducteurs d'électricité et un second feuillet (130) muni d'une seconde série de fils (132) conducteurs d'électricité, ledit dispositif étant caractérisé en ce que les moyens de mesure contiennent une encre (140) semi-conductrice disposée entre lesdits premier et second feuillets (120, 130). 1. A device for measuring the loading of a motor vehicle comprising a load measuring slab (100), said slab (100) comprising means for measuring (120, 130, 140) the surface distribution of said load, the means for measurement comprising a first sheet (120) provided with a first series of electrically conductive wires (1 22) and a second sheet (130) provided with a second series of electrically conductive wires (132), said device being characterized in that the measuring means contains a semiconductor ink (140) disposed between said first and second sheets (120, 130).
2. Dispositif selon la revendication 1 , caractérisé en ce que ladite première série de fils (122), ladite seconde série de fils (132) et ladite encre (140) forment un réseau (145) de cellules.  2. Device according to claim 1, characterized in that said first series of son (122), said second series of son (132) and said ink (140) form a network (145) of cells.
3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que ladite première série de fils conducteurs (122) est disposée transversalement à ladite seconde série de fils conducteurs (132).  3. Device according to any one of claims 1 or 2, characterized in that said first series of conductive son (122) is disposed transversely to said second series of conductive son (132).
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite dalle (100) est réalisée dans un matériau souple.  4. Device according to any one of the preceding claims, characterized in that said slab (100) is made of a flexible material.
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte en outre un moyen (150) d'interface adapté à restituer une information sur ladite répartition surfacique de charge.  5. Device according to any one of the preceding claims, characterized in that it further comprises an interface means (150) adapted to retrieve information on said surface charge distribution.
6. Procédé de fabrication d'une dalle (100) pour la mesure du chargement d'un véhicule, caractérisé en ce qu'il présente des étapes consistant à :  6. A method of manufacturing a slab (100) for measuring the loading of a vehicle, characterized in that it has the following steps:
disposer une première série de fils (122) conducteurs d'électricité dans un premier feuillet (120) ;  disposing a first series of electrically conductive leads (122) in a first sheet (120);
disposer une seconde série de fils (132) conducteurs d'électricité dans un second feuillet (130) ;  disposing a second series of electrically conductive leads (132) in a second sheet (130);
- déposer une encre (140) semi-conductrice entre lesdits premier et second feuillets (120, 130) ;  depositing a semiconductor ink (140) between said first and second sheets (120, 130);
assembler lesdits premier et second feuillets (120, 130) pour former ladite dalle (100).  assembling said first and second sheets (120, 130) to form said slab (100).
7. Procédé de fabrication selon la revendication 6, caractérisé en ce qu'il présente en outre une étape consistant disposer ladite première série de fils (122) transversalement à ladite seconde série de fils (132) 7. Manufacturing method according to claim 6, characterized in that it further comprises a step of arranging said first series of son (122) transversely to said second series of son (132).
8. Véhicule automobile caractérisé en ce qu'il comporte au moins un dispositif pour la mesure du chargement selon l'une quelconque des revendications 1 à 5. 8. Motor vehicle characterized in that it comprises at least one device for measuring the load according to any one of claims 1 to 5.
EP14821715.1A 2013-12-17 2014-11-17 Device for measuring and indicating the loading of a vehicle and method for manufacturing such a device Withdrawn EP3084372A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1362754A FR3015028B1 (en) 2013-12-17 2013-12-17 DEVICE FOR MEASURING AND INDICATING THE LOADING OF A VEHICLE AND METHOD OF MANUFACTURING SUCH A DEVICE
PCT/FR2014/052930 WO2015092181A1 (en) 2013-12-17 2014-11-17 Device for measuring and indicating the loading of a vehicle and method for manufacturing such a device

Publications (1)

Publication Number Publication Date
EP3084372A1 true EP3084372A1 (en) 2016-10-26

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Application Number Title Priority Date Filing Date
EP14821715.1A Withdrawn EP3084372A1 (en) 2013-12-17 2014-11-17 Device for measuring and indicating the loading of a vehicle and method for manufacturing such a device

Country Status (4)

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EP (1) EP3084372A1 (en)
CN (1) CN105829841A (en)
FR (1) FR3015028B1 (en)
WO (1) WO2015092181A1 (en)

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Publication number Priority date Publication date Assignee Title
DE3702007A1 (en) * 1987-01-23 1988-08-18 Uli Maier Weighing mat for measuring load distributions
FR2627584B1 (en) * 1988-02-19 1993-12-10 Gonod Andre MOBILE WEIGHING MACHINE
GB2294112A (en) * 1994-10-12 1996-04-17 Ford Motor Co Load monitoring apparatus for vehicle
CN100585352C (en) * 2007-11-23 2010-01-27 清华大学 Array type ultra-thin submissive force sensor and preparation method thereof
CN102374910B (en) * 2010-08-23 2013-07-03 清华大学 Carbon nanotube / polymer composite membrane array type flexible force sensor and manufacturing method thereof
BR112014000766A2 (en) * 2011-07-13 2017-02-14 Enhanced Surface Dynamics Inc method for manufacturing the pressure sensitivity mat; and method for testing a pressure sensitivity mat
CN202267555U (en) * 2011-10-21 2012-06-06 江苏畅微电子科技有限公司 Dot matrix type pressure distribution sensor based on carbon nano tubes

Non-Patent Citations (2)

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Title
None *
See also references of WO2015092181A1 *

Also Published As

Publication number Publication date
FR3015028A1 (en) 2015-06-19
CN105829841A (en) 2016-08-03
FR3015028B1 (en) 2017-03-31
WO2015092181A1 (en) 2015-06-25

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