EP4366960A1 - Equipment for an electronic system for checking the pressure of the tyres of a motor vehicle - Google Patents

Equipment for an electronic system for checking the pressure of the tyres of a motor vehicle

Info

Publication number
EP4366960A1
EP4366960A1 EP22735469.3A EP22735469A EP4366960A1 EP 4366960 A1 EP4366960 A1 EP 4366960A1 EP 22735469 A EP22735469 A EP 22735469A EP 4366960 A1 EP4366960 A1 EP 4366960A1
Authority
EP
European Patent Office
Prior art keywords
pressure sensor
internal pressure
housing
tire
motor 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.)
Pending
Application number
EP22735469.3A
Other languages
German (de)
French (fr)
Inventor
Jacques Mouchet
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.)
Ateq SAS
Original Assignee
Ateq SAS
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 Ateq SAS filed Critical Ateq SAS
Publication of EP4366960A1 publication Critical patent/EP4366960A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0471—System initialisation, e.g. upload or calibration of operating parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
    • B60C23/0433—Radio signals
    • B60C23/0447—Wheel or tyre mounted circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
    • G01L17/005—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies using a sensor contacting the exterior surface, e.g. for measuring deformation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/086—Means for indicating or recording, e.g. for remote indication for remote indication

Definitions

  • the present invention relates to the field of electronic tire pressure monitoring systems (in English, "Tire Pressure Monitoring System” and whose usual acronym is “TPMS”) of motor vehicles.
  • TPMS Tire Pressure Monitoring System
  • the present invention relates more particularly to a device or device making it possible to communicate on different frequencies, to program, and/or to pair one or more elements together, such as pressure sensors with the on-board computer of a vehicle, of said electronic tire pressure control systems (it will be noted that said device is sometimes also called “TPMS valve forcer”).
  • the pressure sensors are generally housed in the tires of the vehicle and associated with the on-board computer of the motor vehicle to which said sensors transmit data.
  • the sensor-on-board computer assembly is thus referred to as the “electronic tire pressure monitoring system”.
  • each pressure sensor is conventionally equipped with a radio frequency transmitter to allow the transmission of data to the on-board computer.
  • the on-board computer receiving data from the sensors can thus alert the user of the vehicle if one of the tires were to puncture or deflate, posing a risk to their safety.
  • the pressure sensors can also be equipped with a means of communication of the Bluetooth type, and more particularly BLE (for “Bluetooth Low Energy”), instead of or in addition to another means of radio frequency transmission.
  • the pressure sensor associated with the wheel (generally housed inside the latter) is not always removable. Thus changing a wheel involves changing the sensor, the new sensor then no longer being detected or recognized by the vehicle's on-board computer. [0006] It is therefore necessary, when changing tires, to pair (or associate) the sensors housed in the new tires with the vehicle's on-board computer.
  • This pairing is done by means of a dedicated device or apparatus (generally referred to in English as the "TPMS tool"), this device being configured to activate the sensors, recover and record the relevant data emitted by the sensor , such as the sensor ID, and transmit them, for example via an OBD cable, to the on-board computer, so that the latter can detect and locate the sensors housed in the newly installed tires and in receive the data, in order to warn the user in the event of a drop in pressure in one of said tires.
  • TPMS tool a dedicated device or apparatus
  • motor vehicles do not include an electronic tire pressure control system, and therefore no pressure sensors housed in the tires.
  • the invention is thus an apparatus for an electronic system for monitoring the pressure of the tires of a motor vehicle, said apparatus comprising a device which comprises:
  • an electronic entity configured to store and/or process information conveyed by the signals emitted by said sensors
  • said apparatus comprises an internal pressure sensor and a tire valve connection means, said connection means being configured to connect said internal pressure sensor to a tire valve.
  • internal pressure sensor means a pressure sensor dedicated to the device according to the invention, whether the latter is housed directly in the device or elsewhere. Said internal pressure sensor is however configured to be in communication with said device of the apparatus according to the invention.
  • said device comprises a housing for said internal pressure sensor.
  • Said internal pressure sensor is for example housed directly in the device, for example in a dedicated housing (or cavity).
  • Said tire valve connection means being configured to connect the internal pressure sensor to the tire whose pressure is to be measured.
  • said internal pressure sensor is housed in a separate housing from said device.
  • said internal pressure sensor is secured to the walls of said housing.
  • connection means is fixed to said housing.
  • connection means makes it possible to establish, once said connection means is connected to the tire valve, an air path between the internal pressure sensor housed in the casing and the inside of the tire.
  • said casing (housing the internal pressure sensor) and/or said device comprises mechanical and/or magnetic means for securing the device to the casing.
  • the operator can thus easily transport the assembly and separate them only when they are used.
  • said casing comprises a material transparent to radiofrequency waves.
  • the internal pressure sensor comprises a wireless communication means for communicating with the device, for example by radiofrequency or by Bluetooth.
  • said casing is made of plastic or polymers.
  • connection means comprises a connector for a tire valve.
  • connection means comprises a pipe making it possible to connect the connection means to the housing and/or to connect the connection means to the valve of a tire.
  • said internal pressure sensor of said device is a pressure sensor for an electronic tire pressure control system of a motor vehicle.
  • the internal pressure sensor used is a pressure sensor of the type of those housed in motor vehicle tires for electronic tire pressure control systems.
  • FIG. 1 is a very schematic representation illustrating a sensor activation device according to the invention
  • FIG. 2 referenced [Fig. 2] is an enlarged view of the device of Figure 1.
  • Figure 1 is a very schematic representation of a device 1 for activating sensors 9, more particularly in the present example of an activation device 1 for an electronic system 3 for monitoring the pressure of the tires of a motor vehicle 5 (said device 1 can also be designated by the terms “valve activator” or even “valve forcer”).
  • the motor vehicle 5 on the one hand, is equipped with tires 7 in which the sensors 9 are housed, such as pressure sensors, and on the other hand comprises an on-board computer 11 (also called a control unit electronic and generally designated by the acronym "ECU").
  • ECU control unit electronic
  • the device 1 comprises a device 2 which itself comprises a housing 13 (called first housing), for example made of plastic, a display device 15, a keyboard 17 and an antenna 19 for the transmission of a sensor activation signal, as well as an OBD 21 socket.
  • Said OBD socket 21 is configured to allow, for example, the connection of the device 2 (and therefore of the device 1) to the on-board computer 11 of a vehicle, in particular via an OBD cable.
  • Said device 1 also comprises:
  • an internal pressure sensor 18 for example a pressure sensor for an electronic tire pressure monitoring system of a motor vehicle (also called "TPMS sensor”);
  • connection means 20 to a tire valve, said connection means 20 being configured to connect said internal pressure sensor 18 to the valve of a tire, in particular to allow the internal pressure sensor 18 to measure the pressure prevailing in the tire.
  • Said device 1 further comprises a housing 22, said second housing, separate from the housing 13 (and therefore remote from the device 2), respectively the second housing 22 and the first housing 13.
  • Said second housing 22 has an internal volume in which said internal pressure sensor 18 is housed.
  • Said connection means 20 is thus fixed to housing 22 and makes it possible to connect the internal volume of said housing 22, where the internal sensor is housed. pressure 18, to a motor vehicle tire (in particular to allow the internal pressure sensor 18 to measure the pressure).
  • the second housing 22 is thus made of a material transparent to radiofrequency waves, in order to allow the internal pressure sensor 18 to communicate wirelessly with the device 2.
  • Said casing 22 is for example made of a plastic or polymer material, the internal pressure sensor 18 being secured to the walls of the casing 22, for example by overmolding the casing 22 on the internal pressure sensor 18.
  • connection means 20 comprises a connector 20a for a tire valve (more particularly visible in FIG. 2).
  • connection means 20 also comprises one or more pipes for connecting the connector to said housing 22 and/or said connector 20a to the tire valve.
  • said second housing 22 and / or said device 2 (in particular via the first housing 13) comprise mechanical and / or magnetic means for securing the device 2 to the housing 22.
  • the mechanical and/or magnetic means are for example clips, magnets, complementary shapes making it possible to lock the boxes 13 and 22 to each other, etc.
  • Figure 2 for its part, is an enlarged and detailed view of the device 1 of Figure 1.
  • Said device 2 thus comprises:
  • At least one sensor activation module 31 such as modules making it possible to generate (continuous and/or modulated) sensor activation signals, said activation module 31 comprising the antenna 19 which makes it possible in particular to propagate at best said signals generated up to the sensors 9 or 18;
  • a module 33 for receiving signals from the sensors generally another antenna housed in the box 13 and configured for example to receive signals in a frequency band between 300 and 500 MHz (the sensor emitting a signal after having been activated by said activation module 31);
  • an electronic entity 35 such as a processor and a memory, configured to store and/or process information conveyed by the signals emitted by said sensors 9 or 18 (and received via the reception module 33);
  • the communication means 37 is for example an OBD module which includes an OBD communication management circuit 38 and the OBD socket 21 mentioned above. It will be noted that the management circuit 38 can also be integrated into the electronic entity 35.
  • OBD is meant all the OBD modules meeting the standards OBD, OBD-II, E-OBD, J-OBD, etc.
  • the device 2 also includes a battery 41 configured to power the various elements mentioned above.
  • the device 2 can also comprise an additional communication module 36 of the Bluetooth type, in particular of the "Bluetooth Low Energy” type, to communicate with the internal pressure sensor 18 disposed in the housing 22 and/or with a pressure sensor housed in the tire of a motor vehicle.
  • an additional communication module 36 of the Bluetooth type in particular of the "Bluetooth Low Energy” type, to communicate with the internal pressure sensor 18 disposed in the housing 22 and/or with a pressure sensor housed in the tire of a motor vehicle.
  • said activation signals are electromagnetic signals, continuous or modulated, emitted by the activation module(s) 31, which for example have a frequency of 125 kHz.
  • a cavity or a housing is provided in the housing 13 to house the internal pressure sensor 18, the connection means 20 to a tire valve being fixed on said housing 13, so as to allow, as before, said internal pressure sensor 18 to measure the pressure in a motor vehicle tire.
  • the invention makes it possible to have a single device for checking the pressure of motor vehicle tires and/or for checking the correct operation of pressure sensors, already installed, of an electronic pressure control system motor vehicle tires.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The present invention relates to equipment (1) for an electronic system for checking the pressure of the tyres of a motor vehicle, said equipment (1) comprising a device (2) which comprises: - an activation module (31) for activating a pressure sensor housed inside a tyre; - a reception means (33) for receiving signals from the pressure sensors; - an electronic entity (35) configured for storing and/or processing the data carried by the signals emitted by the sensors; - a communication means (37) communicating with a remote electronic entity, such as the on-board computer of a motor vehicle, so as to transmit the data originating from the received signals; characterized in that said equipment (1) comprises an internal pressure sensor (18) and a connection means (20) for connection to a tyre valve, the connection means (20) being configured to connect the internal pressure sensor (18) to the valve of a tyre.

Description

Description Description
Titre de l’invention : APPAREIL POUR SYSTEME ELECTRONIQUE DE CONTROLE DE LA PRESSION DES PNEUS D’UN VEHICULE AUTOMOBILE Title of the invention: APPARATUS FOR AN ELECTRONIC SYSTEM FOR MONITORING THE TIRE PRESSURE OF A MOTOR VEHICLE
[0001] [La présente invention se rapporte au domaine des systèmes électroniques de contrôle de la pression des pneus (en anglais, « Tire Pressure Monitoring System » et dont le sigle usuel est « TPMS ») de véhicules automobiles. The present invention relates to the field of electronic tire pressure monitoring systems (in English, "Tire Pressure Monitoring System" and whose usual acronym is "TPMS") of motor vehicles.
[0002] La présente invention se rapporte plus particulièrement à un dispositif ou appareil permettant de communiquer sur différentes fréquences, de programmer, et/ou appairer un ou plusieurs éléments ensemble, tels que les capteurs de pression avec l’ordinateur de bord d’un véhicule, desdits systèmes électroniques de contrôle de la pression des pneus (on notera que ledit dispositif est parfois également appelé « forceur de valves TPMS »). [0002] The present invention relates more particularly to a device or device making it possible to communicate on different frequencies, to program, and/or to pair one or more elements together, such as pressure sensors with the on-board computer of a vehicle, of said electronic tire pressure control systems (it will be noted that said device is sometimes also called “TPMS valve forcer”).
[0003] En effet, dans de tels systèmes, les capteurs de pression sont généralement logés dans les pneumatiques du véhicule et associés à l’ordinateur de bord du véhicule automobile auquel lesdits capteurs transmettent des données. L’ensemble capteurs-ordinateur de bord est ainsi désigné sous le terme « système électronique de contrôle de la pression des pneus » (ou en langue anglaise « Tire Pressure Monitoring System »). [0003] Indeed, in such systems, the pressure sensors are generally housed in the tires of the vehicle and associated with the on-board computer of the motor vehicle to which said sensors transmit data. The sensor-on-board computer assembly is thus referred to as the “electronic tire pressure monitoring system”.
[0004] En effet, chaque capteur de pression est classiquement équipé d’un émetteur à radiofréquences pour permettre la transmission de données à l’ordinateur de bord. L’ordinateur de bord recevant les données des capteurs peut ainsi alerter l’utilisateur du véhicule si l’un des pneus venait à crever ou à se dégonfler, entraînant un risque pour sa sécurité. On notera également que les capteurs de pression peuvent également être équipés d’un moyen de communication de type Bluetooth, et plus particulièrement BLE (pour « Bluetooth Low Energy), à la place ou en complément d’un autre moyen d’émission radiofréquence. [0004] Indeed, each pressure sensor is conventionally equipped with a radio frequency transmitter to allow the transmission of data to the on-board computer. The on-board computer receiving data from the sensors can thus alert the user of the vehicle if one of the tires were to puncture or deflate, posing a risk to their safety. It will also be noted that the pressure sensors can also be equipped with a means of communication of the Bluetooth type, and more particularly BLE (for “Bluetooth Low Energy”), instead of or in addition to another means of radio frequency transmission.
[0005] Cependant, le capteur de pression associé à la roue (généralement logé à l’intérieur de celle-ci) n’est pas toujours amovible. Ainsi le changement d’une roue implique le changement du capteur, le nouveau capteur n’étant alors plus détecté ou reconnu par l’ordinateur de bord du véhicule. [0006] Il est donc nécessaire, lors du changement des pneus, d’appairer (ou associer) les capteurs logés dans les nouveaux pneus avec l’ordinateur de bord du véhicule. [0005] However, the pressure sensor associated with the wheel (generally housed inside the latter) is not always removable. Thus changing a wheel involves changing the sensor, the new sensor then no longer being detected or recognized by the vehicle's on-board computer. [0006] It is therefore necessary, when changing tires, to pair (or associate) the sensors housed in the new tires with the vehicle's on-board computer.
[0007] Cet appairage se fait au moyen d’un dispositif ou appareil dédié (généralement désigné en langue anglaise sous le terme « TPMS tool »), ce dispositif étant configuré pour activer les capteurs, récupérer et enregistrer les données pertinentes émises par le capteur, telles que l’identifiant du capteur, et les transmettre, par exemple par le biais d’un câble OBD, à l’ordinateur de bord, afin que ce dernier puisse détecter, et localiser les capteurs logés dans les pneus nouvellement installés et en recevoir les données, afin d’avertir l’usager en cas d’une chute de pression dans un desdits pneus. [0007] This pairing is done by means of a dedicated device or apparatus (generally referred to in English as the "TPMS tool"), this device being configured to activate the sensors, recover and record the relevant data emitted by the sensor , such as the sensor ID, and transmit them, for example via an OBD cable, to the on-board computer, so that the latter can detect and locate the sensors housed in the newly installed tires and in receive the data, in order to warn the user in the event of a drop in pressure in one of said tires.
[0008] Cependant, de nouveaux besoins sont apparus lors de l’utilisation de tels appareils que cela soit dans un garage ou encore sur une ligne de production de pneumatiques ou de véhicules automobiles. [0008] However, new needs have arisen when using such devices, whether in a garage or even on a tire or motor vehicle production line.
[0009] En effet, il est possible que les véhicules automobiles ne comprennent pas de système électronique de contrôle de la pression des pneus, et donc pas de capteurs de pression logés dans les pneumatiques. [0009] Indeed, it is possible that motor vehicles do not include an electronic tire pressure control system, and therefore no pressure sensors housed in the tires.
Il peut être ainsi nécessaire mesurer rapidement la pression d’un pneu et d’avoir un appareil adéquat pour cela. It may therefore be necessary to quickly measure the pressure of a tire and to have a suitable device for this.
[0010] Il peut être également nécessaire de pouvoir vérifier la pression d’un pneu logeant déjà un capteur de pression, notamment pour vérifier que le capteur fonctionne correctement, est bien positionné, n’a pas dérivé, et/ou vérifier qu’il n’est pas nécessaire de l’étalonner ou de faire une maintenance quelconque. [0010] It may also be necessary to be able to check the pressure of a tire already housing a pressure sensor, in particular to check that the sensor is operating correctly, is correctly positioned, has not drifted, and/or to check that it there is no need to calibrate or do any maintenance.
[0011] L’invention est ainsi un appareil pour système électronique de contrôle de la pression des pneus d’un véhicule automobile, ledit appareil comprenant un dispositif qui comprend : The invention is thus an apparatus for an electronic system for monitoring the pressure of the tires of a motor vehicle, said apparatus comprising a device which comprises:
- un module d’activation de capteurs de pression logé dans un pneu ; - a pressure sensor activation module housed in a tire;
- un moyen de réception de signaux en provenance des capteurs de pression ;- means for receiving signals from the pressure sensors;
- une entité électronique configurée pour stocker et/ou traiter des informations véhiculées par les signaux émis par lesdits capteurs ; - an electronic entity configured to store and/or process information conveyed by the signals emitted by said sensors;
- un moyen de communication avec une entité électronique distante, tel que l’ordinateur de bord d’un véhicule automobile, afin de transmettre les informations issues des signaux reçus ; caractérisé en ce que ledit appareil comprend un capteur interne de pression et un moyen de connexion à une valve de pneu, ledit moyen de connexion étant configuré pour relier ledit capteur interne de pression à la valve d’un pneu. L’invention permet ainsi d’avoir un unique appareil pour, d’une part, mesurer la pression d’un pneu équipé ou non d’un capteur de pression et, d’autre part, d’appairer des capteurs de pression à l’ordinateur de bord d’un véhicule automobile. Cela simplifie la tâche de l’opérateur qui n’a pas besoin d’avoir plusieurs appareils et d’avoir besoin d’apprendre à s’en servir, tout en réduisant les coûts. - A means of communication with a remote electronic entity, such as the on-board computer of a motor vehicle, in order to transmit the information resulting from the signals received; characterized in that said apparatus comprises an internal pressure sensor and a tire valve connection means, said connection means being configured to connect said internal pressure sensor to a tire valve. The invention thus makes it possible to have a single device for, on the one hand, measuring the pressure of a tire equipped or not with a pressure sensor and, on the other hand, to pair pressure sensors with the on-board computer of a motor vehicle. This simplifies the task of the operator who does not need to have several devices and need to learn how to use them, while reducing costs.
On notera par ailleurs qu’on en entend par « capteur interne de pression », un capteur de pression dédié à l’appareil selon l’invention, que celui-ci soit logé directement dans le dispositif ou ailleurs. Ledit capteur interne de pression est cependant configuré pour être en communication avec ledit dispositif de l’appareil selon l’invention. It will also be noted that the term "internal pressure sensor" means a pressure sensor dedicated to the device according to the invention, whether the latter is housed directly in the device or elsewhere. Said internal pressure sensor is however configured to be in communication with said device of the apparatus according to the invention.
[0012] Selon une caractéristique possible, ledit dispositif comprend un logement d’accueil pour ledit capteur interne de pression. [0012]According to one possible characteristic, said device comprises a housing for said internal pressure sensor.
Ledit capteur interne de pression est par exemple logé directement dans le dispositif, par exemple dans un logement (ou une cavité) dédié. Ledit moyen de connexion à une valve de pneu étant configuré pour connecter le capteur interne de pression au pneu dont on cherche à mesurer la pression. Said internal pressure sensor is for example housed directly in the device, for example in a dedicated housing (or cavity). Said tire valve connection means being configured to connect the internal pressure sensor to the tire whose pressure is to be measured.
[0013] Selon une autre caractéristique possible, ledit capteur interne de pression est logé dans un boîtier distinct dudit dispositif. According to another possible feature, said internal pressure sensor is housed in a separate housing from said device.
Il est avantageux de pouvoir éloigner le capteur interne de pression du dispositif pour faciliter la connexion et la déconnexion du capteur interne de pression au pneu dont on cherche à mesurer la valeur de pression. It is advantageous to be able to move the internal pressure sensor away from the device to facilitate connection and disconnection of the internal pressure sensor to the tire whose pressure value is to be measured.
[0014] Selon une autre caractéristique possible, ledit capteur interne de pression est solidaire des parois dudit boîtier. [0014]According to another possible feature, said internal pressure sensor is secured to the walls of said housing.
Le fait de rendre solidaire le capteur interne de pression au boîtier permet d’empêcher tout mouvement du capteur interne de pression dans le boîtier, limitant ainsi le risque le capteur ne soit détérioré par des chocs et/ou que la mesure de pression ne soit altérée. [0015] Selon une autre caractéristique possible, ledit moyen de connexion est fixé audit boîtier. The fact of attaching the internal pressure sensor to the housing makes it possible to prevent any movement of the internal pressure sensor in the housing, thus limiting the risk of the sensor being damaged by shocks and/or the pressure measurement being altered. . [0015]According to another possible characteristic, said connection means is fixed to said housing.
Ledit moyen de connexion permet d’établir, une fois que ledit moyen de connexion est connecté à la valve du pneu, un chemin aéraulique entre le capteur interne de pression logé dans le boîtier et l’intérieur du pneu. Said connection means makes it possible to establish, once said connection means is connected to the tire valve, an air path between the internal pressure sensor housed in the casing and the inside of the tire.
[0016] Selon une autre caractéristique possible, ledit boîtier (logeant le capteur interne de pression) et/ou ledit dispositif comprennent des moyens mécaniques et/ou magnétiques pour solidariser le dispositif au boîtier. [0016]According to another possible characteristic, said casing (housing the internal pressure sensor) and/or said device comprises mechanical and/or magnetic means for securing the device to the casing.
L’opérateur peut ainsi facilement transporter l’ensemble et les séparer seulement au moment de leur utilisation. The operator can thus easily transport the assembly and separate them only when they are used.
[0017] Selon une autre caractéristique possible, ledit boîtier comprend un matériau transparent aux ondes radiofréquences. [0017]According to another possible characteristic, said casing comprises a material transparent to radiofrequency waves.
Avantageusement, le capteur interne de pression comprend un moyen de communication sans fil pour communiquer avec le dispositif, par exemple par radiofréquences ou par Bluetooth. Advantageously, the internal pressure sensor comprises a wireless communication means for communicating with the device, for example by radiofrequency or by Bluetooth.
[0018] Selon une autre caractéristique possible, ledit boîtier est en plastique ou en polymères. [0018]According to another possible characteristic, said casing is made of plastic or polymers.
[0019] Selon une autre caractéristique possible, ledit moyen de connexion comprend un connecteur pour valve de pneumatique. According to another possible characteristic, said connection means comprises a connector for a tire valve.
[0020] Selon une autre caractéristique possible, ledit moyen de connexion comprend un tuyau permettant de relier le moyen de connexion au boîtier et/ou de relier le moyen de connexion à la valve d’un pneu. [0020]According to another possible characteristic, said connection means comprises a pipe making it possible to connect the connection means to the housing and/or to connect the connection means to the valve of a tire.
[0021] Selon une autre caractéristique possible, ledit capteur interne de pression dudit appareil est un capteur de pression pour système électronique de contrôle de la pression des pneus d’un véhicule automobile. According to another possible feature, said internal pressure sensor of said device is a pressure sensor for an electronic tire pressure control system of a motor vehicle.
Avantageusement, le capteur interne de pression utilisé est un capteur de pression du type de ceux logés dans les pneumatiques de véhicules automobiles pour les systèmes électroniques de contrôle de la pression des pneus. Advantageously, the internal pressure sensor used is a pressure sensor of the type of those housed in motor vehicle tires for electronic tire pressure control systems.
[0022] L’invention sera mieux comprise, et d’autres buts, détails, caractéristiques et avantages de celles-ci apparaîtront plus clairement au cours de la description suivante de modes de réalisation particuliers de l’invention, donnée uniquement à titre illustratif et non limitatif, en référence aux dessins annexés, sur lesquels :The invention will be better understood, and other objects, details, characteristics and advantages thereof will appear more clearly during the description. following particular embodiments of the invention, given solely by way of illustration and not limitation, with reference to the appended drawings, in which:
- la figure 1 , référencée [Fig. 1] est une représentation très schématique illustrant un appareil d’activation de capteur selon l’invention ; - Figure 1, referenced [Fig. 1] is a very schematic representation illustrating a sensor activation device according to the invention;
- la figure 2, référencée [Fig. 2] est une vue agrandie du dispositif de la figure 1. - Figure 2, referenced [Fig. 2] is an enlarged view of the device of Figure 1.
[0023] La figure 1 est une représentation très schématique d’un appareil 1 d’activation de capteurs 9, plus particulièrement dans le présent exemple d’un appareil 1 d’activation pour système électronique 3 de contrôle de la pression des pneus d’un véhicule automobile 5 (ledit appareil 1 pouvant également être désigné sous les termes « activateur de valves » ou encore « forceur de valves »). [0023] Figure 1 is a very schematic representation of a device 1 for activating sensors 9, more particularly in the present example of an activation device 1 for an electronic system 3 for monitoring the pressure of the tires of a motor vehicle 5 (said device 1 can also be designated by the terms “valve activator” or even “valve forcer”).
[0024] Le véhicule automobile 5, d’une part, est équipé de pneus 7 dans lesquels sont logés les capteurs 9, tel que des capteurs de pression, et d’autre part comprend un ordinateur de bord 11 (également appelé unité de commande électronique et désignée généralement sous le sigle « ECU »). [0024] The motor vehicle 5, on the one hand, is equipped with tires 7 in which the sensors 9 are housed, such as pressure sensors, and on the other hand comprises an on-board computer 11 (also called a control unit electronic and generally designated by the acronym "ECU").
[0025] L’appareil 1 comporte un dispositif 2 qui comprend lui-même un boîtier 13 (dit premier boîtier), par exemple en matière plastique, un dispositif d’affichage 15, un clavier 17 et une antenne 19 pour l’émission d’un signal d’activation de capteurs, ainsi qu’une prise OBD 21 . Ladite prise OBD 21 est configurée pour permettre par exemple le raccordement du dispositif 2 (et donc de l’appareil 1) à l’ordinateur de bord 11 d’un véhicule, notamment par l’intermédiaire d’un câble OBD. The device 1 comprises a device 2 which itself comprises a housing 13 (called first housing), for example made of plastic, a display device 15, a keyboard 17 and an antenna 19 for the transmission of a sensor activation signal, as well as an OBD 21 socket. Said OBD socket 21 is configured to allow, for example, the connection of the device 2 (and therefore of the device 1) to the on-board computer 11 of a vehicle, in particular via an OBD cable.
[0026] Ledit appareil 1 comprend également : Said device 1 also comprises:
- un capteur interne de pression 18, par exemple un capteur de pression pour un système électronique de contrôle de la pression des pneus d’un véhicule automobile (également appelé « capteur TPMS ») ; - an internal pressure sensor 18, for example a pressure sensor for an electronic tire pressure monitoring system of a motor vehicle (also called "TPMS sensor");
- un moyen de connexion 20 à une valve de pneu, ledit moyen de connexion 20 étant configuré pour relier ledit capteur interne de pression 18 à la valve d’un pneu, notamment pour permettre au capteur interne de pression 18 de mesurer la pression régnant dans le pneu. - a connection means 20 to a tire valve, said connection means 20 being configured to connect said internal pressure sensor 18 to the valve of a tire, in particular to allow the internal pressure sensor 18 to measure the pressure prevailing in the tire.
[0027] Ledit appareil 1 comprend en outre un boîtier 22, dit deuxième boîtier, distinct du boîtier 13 (et donc distant du dispositif 2), respectivement le deuxième boîtier 22 et le premier boîtier 13. [0028] Ledit deuxième boîtier 22 présente un volume interne dans lequel est logé ledit capteur interne de pression 18. Ledit moyen de connexion 20 est ainsi fixé au boîtier 22 et permet de relier le volume interne dudit boîtier 22, où est logé le capteur interne de pression 18, à un pneu de véhicule automobile (notamment pour permettre au capteur interne de pression 18 d’en mesurer la pression). Said device 1 further comprises a housing 22, said second housing, separate from the housing 13 (and therefore remote from the device 2), respectively the second housing 22 and the first housing 13. Said second housing 22 has an internal volume in which said internal pressure sensor 18 is housed. Said connection means 20 is thus fixed to housing 22 and makes it possible to connect the internal volume of said housing 22, where the internal sensor is housed. pressure 18, to a motor vehicle tire (in particular to allow the internal pressure sensor 18 to measure the pressure).
[0029] Le deuxième boîtier 22 est ainsi réalisé dans un matériau transparent aux ondes radiofréquences, afin de permettre au capteur interne de pression 18 de communiquer sans fil avec le dispositif 2. The second housing 22 is thus made of a material transparent to radiofrequency waves, in order to allow the internal pressure sensor 18 to communicate wirelessly with the device 2.
[0030] Ledit boîtier 22 est par exemple réalisé en un matériau plastique ou en polymère, le capteur interne de pression 18 étant solidaire des parois du boîtier 22, par exemple par surmoulage du boîtier 22 sur le capteur interne de pression 18. [0030] Said casing 22 is for example made of a plastic or polymer material, the internal pressure sensor 18 being secured to the walls of the casing 22, for example by overmolding the casing 22 on the internal pressure sensor 18.
[0031] Plus particulièrement, ledit moyen de connexion 20 comprend un connecteur 20a pour valve de pneumatique (plus particulièrement visible à la figure 2). More particularly, said connection means 20 comprises a connector 20a for a tire valve (more particularly visible in FIG. 2).
[0032] Dans une variante de réalisation non représentée, ledit moyen de connexion 20 comprend également un ou plusieurs tuyaux permettant de relier le connecteur audit boîtier 22 et/ou ledit connecteur 20a à la valve du pneu. In a variant embodiment not shown, said connection means 20 also comprises one or more pipes for connecting the connector to said housing 22 and/or said connector 20a to the tire valve.
[0033] Dans une autre variante de réalisation non représentée, ledit deuxième boîtier 22 et/ou ledit dispositif 2 (notamment par l’intermédiaire du premier boîtier 13) comprennent des moyens mécaniques et/ou magnétiques pour solidariser le dispositif 2 au boîtier 22. Les moyens mécaniques et/ou magnétiques sont par exemple des clips, des aimants, des formes complémentaires permettant de verrouiller les boîtiers 13 et 22 l’un à l’autre, etc. In another embodiment not shown, said second housing 22 and / or said device 2 (in particular via the first housing 13) comprise mechanical and / or magnetic means for securing the device 2 to the housing 22. The mechanical and/or magnetic means are for example clips, magnets, complementary shapes making it possible to lock the boxes 13 and 22 to each other, etc.
[0034] La figure 2, quant à elle, est une vue agrandie et de détail de l’appareil 1 de la figure 1. Figure 2, for its part, is an enlarged and detailed view of the device 1 of Figure 1.
[0035] Ledit dispositif 2 comprend ainsi : Said device 2 thus comprises:
- au moins un module d’activation 31 de capteurs, tel que des modules permettant de générer des signaux (continus et/ou modulés) d’activation de capteurs, ledit module d’activation 31 comprenant l’antenne 19 qui permet notamment de propager au mieux lesdits signaux générés jusqu’aux capteurs 9 ou 18 ; - at least one sensor activation module 31, such as modules making it possible to generate (continuous and/or modulated) sensor activation signals, said activation module 31 comprising the antenna 19 which makes it possible in particular to propagate at best said signals generated up to the sensors 9 or 18;
- un module de réception 33 de signaux en provenance des capteurs, généralement une autre antenne logée dans le boîtier 13 et configurée par exemple pour recevoir des signaux dans une bande fréquence entre 300 et 500 MHz (le capteur émettant un signal après avoir été activé par ledit module d’activation 31) ; - a module 33 for receiving signals from the sensors, generally another antenna housed in the box 13 and configured for example to receive signals in a frequency band between 300 and 500 MHz (the sensor emitting a signal after having been activated by said activation module 31);
- une entité électronique 35, telle qu’un processeur et une mémoire, configurée pour stocker et/ou traiter des informations véhiculées par les signaux émis par lesdits capteurs 9 ou 18 (et reçus par l’intermédiaire du module de réception 33) ; - an electronic entity 35, such as a processor and a memory, configured to store and/or process information conveyed by the signals emitted by said sensors 9 or 18 (and received via the reception module 33);
- un moyen de communication 37 avec un ordinateur de bord 11 de véhicule automobile pour transmettre les informations d’au moins un desdits capteurs 9 (informations reçues par l’intermédiaire de signaux provenant desdits capteurs 9). - A means of communication 37 with a motor vehicle on-board computer 11 for transmitting information from at least one of said sensors 9 (information received via signals from said sensors 9).
[0036] Le moyen de communication 37 est par exemple un module OBD qui comprend un circuit de gestion 38 de la communication OBD et la prise OBD 21 précédemment mentionnée. On notera que le circuit de gestion 38 peut également être intégré dans l’entité électronique 35. The communication means 37 is for example an OBD module which includes an OBD communication management circuit 38 and the OBD socket 21 mentioned above. It will be noted that the management circuit 38 can also be integrated into the electronic entity 35.
[0037] On notera qu’on entend par OBD, l’ensemble des modules OBD répondant aux normes OBD, OBD-II, E-OBD, J-OBD, etc. [0037] It will be noted that by OBD is meant all the OBD modules meeting the standards OBD, OBD-II, E-OBD, J-OBD, etc.
[0038] Le dispositif 2 comprend également une batterie 41 configurée pour alimenter les différents éléments mentionnés précédemment. The device 2 also includes a battery 41 configured to power the various elements mentioned above.
[0039] Par ailleurs, le dispositif 2 peut également comprendre un module de communication additionnelle 36 de type Bluetooth, notamment du type « Bluetooth Low Energy », pour communiquer avec le capteur interne de pression 18 disposé dans le boîtier 22 et/ou avec un capteur de pression logé dans le pneu d’un véhicule automobile. Furthermore, the device 2 can also comprise an additional communication module 36 of the Bluetooth type, in particular of the "Bluetooth Low Energy" type, to communicate with the internal pressure sensor 18 disposed in the housing 22 and/or with a pressure sensor housed in the tire of a motor vehicle.
[0040] On notera, par ailleurs, que lesdits signaux d’activation sont des signaux électromagnétiques, continus ou modulés, émis par le ou les modules d’activation 31 , qui présentent par exemple une fréquence de 125 kHz. ] It will be noted, moreover, that said activation signals are electromagnetic signals, continuous or modulated, emitted by the activation module(s) 31, which for example have a frequency of 125 kHz. ]
[0041] Dans une autre variante de réalisation non représentée, une cavité ou un logement est aménagé dans le boîtier 13 pour loger le capteur interne de pression 18, le moyen de connexion 20 à une valve de pneu étant fixé sur ledit boîtier 13, de manière à permettre, comme précédemment, audit capteur interne de pression 18 de mesurer la pression dans un pneu de véhicule automobile. In another variant embodiment not shown, a cavity or a housing is provided in the housing 13 to house the internal pressure sensor 18, the connection means 20 to a tire valve being fixed on said housing 13, so as to allow, as before, said internal pressure sensor 18 to measure the pressure in a motor vehicle tire.
[0042] Ainsi, l’invention permet d’avoir un appareil unique pour vérifier la pression de pneumatiques de véhicule automobile et/ou de vérifier le bon fonctionnement de capteurs de pression, déjà installés, d’un système électronique de contrôle de la pression des pneus de véhicule automobile. [0042] Thus, the invention makes it possible to have a single device for checking the pressure of motor vehicle tires and/or for checking the correct operation of pressure sensors, already installed, of an electronic pressure control system motor vehicle tires.

Claims

Revendications Claims
[Revendications 1] (Appareil (1) pour système électronique de contrôle de la pression des pneus d’un véhicule automobile, ledit appareil (1) comprenant un dispositif (2) qui comprend : [Claims 1] (Apparatus (1) for an electronic tire pressure monitoring system of a motor vehicle, said apparatus (1) comprising a device (2) which comprises:
- un module d’activation (31) de capteur de pression logé dans un pneu ;- a pressure sensor activation module (31) housed in a tire;
- un moyen de réception (33) de signaux en provenance des capteurs de pression ; - means (33) for receiving signals from the pressure sensors;
- une entité électronique (35) configurée pour stocker et/ou traiter des informations véhiculées par les signaux émis par lesdits capteurs ; - an electronic entity (35) configured to store and/or process information conveyed by the signals emitted by said sensors;
- un moyen de communication (37) avec une entité électronique distante, tel que l’ordinateur de bord d’un véhicule automobile, afin de transmettre les informations issues des signaux reçus ; caractérisé en ce que ledit appareil (1) comprend un capteur interne de pression (18) et un moyen de connexion (20) à une valve de pneu, ledit moyen de connexion (20) étant configuré pour relier ledit capteur interne de pression (18) à la valve d’un pneu. - a means of communication (37) with a remote electronic entity, such as the on-board computer of a motor vehicle, in order to transmit the information resulting from the signals received; characterized in that said apparatus (1) comprises an internal pressure sensor (18) and connection means (20) to a tire valve, said connection means (20) being configured to connect said internal pressure sensor (18 ) to the valve of a tire.
[Revendications 2] Appareil (1) selon la revendication précédente, caractérisé en ce que ledit dispositif (2) comprend un logement d’accueil pour ledit capteur interne de pression (18). [Claims 2] Apparatus (1) according to the preceding claim, characterized in that said device (2) comprises a housing for said internal pressure sensor (18).
[Revendications 3] Appareil (1) selon la revendication précédente, caractérisé en ce que ledit capteur interne de pression (18) est logé dans un boîtier (22) distinct dudit dispositif (2). [Claims 3] Apparatus (1) according to the preceding claim, characterized in that said internal pressure sensor (18) is housed in a casing (22) separate from said device (2).
[Revendications 4] Appareil (1) selon la revendication précédente, caractérisé en ce que ledit capteur interne de pression (18) est solidaire des parois dudit boîtier (22). [Claims 4] Apparatus (1) according to the preceding claim, characterized in that said internal pressure sensor (18) is secured to the walls of said housing (22).
[Revendications 5] Appareil (1) selon la revendication 3 ou 4, caractérisé en ce que ledit moyen de connexion (20) est fixé audit boîtier (22). [Claims 5] Apparatus (1) according to claim 3 or 4, characterized in that said connection means (20) is fixed to said housing (22).
[Revendications 6] Appareil selon l’une des revendications 3 à 5, ledit boîtier (22) et/ou ledit dispositif (2) comprennent des moyens mécaniques et/ou magnétiques pour solidariser le dispositif (2) au boîtier (22). [Claims 6] Apparatus according to one of claims 3 to 5, said housing (22) and/or said device (2) comprise mechanical and/or magnetic means for securing the device (2) to the housing (22).
[Revendications 7] Appareil (1) selon l’une quelconque des revendications précédentes, caractérisé en ce que ledit boîtier (22) comprend un matériau transparent aux ondes radiofréquences. [Claims 7] Apparatus (1) according to any one of the preceding claims, characterized in that said casing (22) comprises a material transparent to radio frequency waves.
[Revendications 8] Appareil (1) selon l’une quelconque des revendications précédentes, caractérisé en ce que ledit boîtier (22) comprend un matériau plastique ou en polymères. [Claims 8] Apparatus (1) according to any one of the preceding claims, characterized in that said casing (22) comprises a plastic or polymeric material.
[Revendications 9] Appareil (1) selon l’une quelconque des revendications précédentes, caractérisé en ce que ledit moyen de connexion (20) comprend un connecteur (20a) pour valve de pneumatique. [Claim 9] Apparatus (1) according to any preceding claim, characterized in that said connection means (20) comprises a connector (20a) for a tire valve.
[Revendications 10] Appareil (1) selon l’une quelconque des revendications précédentes, caractérisé en ce que ledit capteur interne de pression (18) dudit appareil (1) est un capteur de pression pour système électronique de contrôle de la pression des pneus d’un véhicule automobile. [Claims 10] Apparatus (1) according to any one of the preceding claims, characterized in that said internal pressure sensor (18) of said apparatus (1) is a pressure sensor for an electronic tire pressure monitoring system. a motor vehicle.
EP22735469.3A 2021-07-06 2022-06-29 Equipment for an electronic system for checking the pressure of the tyres of a motor vehicle Pending EP4366960A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2107290A FR3125123B1 (en) 2021-07-06 2021-07-06 APPARATUS FOR AN ELECTRONIC SYSTEM FOR MONITORING THE TIRE PRESSURE OF A MOTOR VEHICLE
PCT/EP2022/067952 WO2023280661A1 (en) 2021-07-06 2022-06-29 Equipment for an electronic system for checking the pressure of the tyres of a motor vehicle

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EP4366960A1 true EP4366960A1 (en) 2024-05-15

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EP (1) EP4366960A1 (en)
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US20130145834A1 (en) * 2011-12-13 2013-06-13 Ateq Corporation Universal tire pressure monitoring system tool and absolute pressure compensation
CN204309535U (en) * 2014-10-09 2015-05-06 深圳市云图电装系统有限公司 Tire condition monitoring device and tire
TWI573702B (en) * 2015-10-12 2017-03-11 Mobiletron Electronics Co Ltd Tire pressure sensor burner
GB2543851A (en) * 2015-11-02 2017-05-03 Bartec Auto Id Ltd Tyre inspection
FR3074291B1 (en) * 2017-11-30 2021-06-18 Ateq SYSTEM FOR PROCESSING DATA SENT BY TIRE CONDITION MEASURING DEVICES, AND ASSOCIATED PORTABLE DEVICE

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WO2023280661A1 (en) 2023-01-12
FR3125123A1 (en) 2023-01-13

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