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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=77411890

Family Applications (1)

Country Status (5)

Family Cites Families (5)

• 2021
  • 2021-07-06 FR FR2107290A patent/FR3125123B1/fr active Active
• 2022
  • 2022-06-29 WO PCT/EP2022/067952 patent/WO2023280661A1/fr active Application Filing
  • 2022-06-29 CN CN202280047679.2A patent/CN117597243A/zh active Pending
  • 2022-06-29 US US18/576,281 patent/US20240149625A1/en active Pending
  • 2022-06-29 EP EP22735469.3A patent/EP4366960A1/de active Pending

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