Method of utilizing a system for monitoring the pressure and/or the temperature of the tires of a vehicle and device allowing implementation

• US 9,884,523 B2
• Filed: 10/09/2014
• Issued: 02/06/2018
• Est. Priority Date: 10/11/2013
• Status: Active Grant

• Current Assignee: LDL Technology SAS
• Original Assignee: LDL Technology SAS
• Inventors: Moreau, Thierry
• Primary Examiner(s): Lee, Tyler J
• Application Number:
  US15/023,933
• Publication Number:
  US 20160236523A1
• Time in Patent Office: 1,216 Days
• Field of Search: 701 331
• CPC Class Codes: B60C 23/008 having wheels on more than two axles
• CPC Class Codes: B60C 23/009 having wheels on a trailer
• CPC Class Codes: B60C 23/02 Signalling devices actuated by tyre pressure hand-held tyre pressure gauges G01L17/00
• CPC Class Codes: B60C 23/0415 Automatically identifying wheel mounted units, e.g. after replacement or exchange of wheels
• CPC Class Codes: B60C 23/0416 allocating a corresponding wheel position on vehicle, e.g. front/left or rear/right
• CPC Class Codes: B60C 23/044 Near field triggers, e.g. magnets or triggers with 125 KHz
• CPC Class Codes: B60C 23/0442 the transmitted signal comprises further information, e.g. instruction codes, sensor characteristics or identification data
• CPC Class Codes: B60C 23/0461 externally triggered, e.g. by wireless request signal, magnet or manual switch
• CPC Class Codes: B60C 23/0474 Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
• CPC Class Codes: B60C 23/0476 Temperature compensation of measured pressure values
• CPC Class Codes: B60C 23/0479 Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
• CPC Class Codes: B60C 23/0486 comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors
• CPC Class Codes: B60C 23/20 Devices for measuring or signalling tyre temperature only

Abstract

The invention relates to a method of utilizing a system for monitoring the temperature and/or the pressure of the tires of a vehicle (C) comprising one or more rolling sub-assemblies (100, 200), noteworthy in that it consists in installing on each rolling sub-assembly (100, 200), an additional storage and communication module (300′) comprising: —a data storage means in which are recorded, during a learning phase, the set of unique identifiers and the locations of each measurement and communication pick-up module (300) of said rolling sub-assembly (100, 200), —a means of communication at least with the reception and transmission modules (400) and installed on the rolling sub-assembly, —a means of storing energy for the purposes of powering the communication means, so that said storage and communication module (300′) can retain in memory the set of identifiers and associated locations of the same sub-assembly (100, 200) and can communicate it instantaneously. The invention also relates to the device allowing the method to be implemented. Applications: utilization of a system for monitoring tires.

Claims

1. Method for utilizing a system for monitoring pressures and/or temperatures of tires of a vehicle (C) comprising one or more rolling sub-assemblies (100, 200), each of the rolling sub-assemblies having a chassis, axles, and wheels, each wheel having a tire, said system including the following:

measurement pick-up and communication modules (300) associated with each wheel (R) for taking measurements of the pressure and/or of the temperature of the tire of each wheel,

at least one reception and transmission module (400) for information transmitted at radio frequencies (RF) by the measurement pick-up modules and arranged on the axle or the chassis of the vehicle (C),

a means of display and management (500) available in the cab for the driver of the vehicle (C) and communicating by wired network or by radio frequencies (RF) with said reception and transmission module or modules (300),

wherein the method includes installing on each rolling sub-assembly (100, 200), an additional storage and communication module (300′

) comprising;

a data storage means in which are recorded, during a learning phase, a set of unique identifiers and the locations of each measurement pick-up and communication module (300) of said rolling sub-assembly (100, 200),

a means of communication transmitting in radio frequencies (RF) and receiving in low frequencies (LF) communicating at least with the reception and transmission module or modules (400),

a means of storing energy for the purposes of powering the communication means,

in such a way that said storage and communication module (300′

) can retain in memory the set of identifiers and associated locations of the same rolling sub-assembly (100, 200); and

communicating the set of identifiers and associated locations so that the set of identifiers and associated locations are readily available to the system.

2. The method according to claim 1, CHARACTERISED IN THAT the method further includes associating to said storage and communication module (300′

) a means for detecting movement of the rolling sub-assembly (100, 200) for the purposes of triggering the emission of the data stored by the means of communication only once the movement has been detected.

3. The method according to claim 1, CHARACTERISED IN THAT the method further includes comparing, by means of the reception and transmission module (400), the data coming from the measurement modules (300) with the data coming from the means of storage and communication (300′

).

4. The method according to claim 1, CHARACTERISED IN THAT the method further includes associating with said storage and communication module (300′

), a measurement pick-up means for measuring the pressure and/or the temperature.

5. The method according to claim 4, CHARACTERISED IN THAT the method further includes positioning said storage and communication module (300′

) provided with the measurement pick-up means, outside of the rolling sub-assembly (100, 200) in order to know the temperature of the ambient outside air for the purposes of correction by offsetting the measurements taken in the tires by the measurement pick-up means and storage and communication module (300).

6. The method according to claim 4, wherein at least one of the rolling sub-assemblies has a useful volume, CHARACTERISED IN THAT the method further includes positioning said storage and communication module (300′

) provided with the measurement pick-up means inside the useful volume of the rolling sub-assembly (100, 200).

7. The method according to claim 1, CHARACTERISED IN THAT the method further includes:

measuring the power of the signal received by the reception and transmission module or modules (400) and sent by the storage and communication modules (300′

),

and knowing the distance that separates the storage and communication modules (300′

) and the reception and transmission modules (400),

in order to calibrate the intensity of the signal emitted by said reception and transmission module or modules (400) in order to provide the location of the measurement pick-up and communication modules (300) by measuring the intensity of the signal emitted by the communication modules (300).

8. The method according to claim 1, CHARACTERISED IN THAT the method further includes receiving, by means of the reception and transmission module (400), the signals of the storage and communication modules (300′

) of other rolling sub-assemblies and in emitting an alert on the display and management module (500) in order to prevent any contact.

9. The method according to claim 1, CHARACTERISED IN THAT the method further includes receiving, by means of a reception and transmission module (400), the signals from storage and communication modules (300′

) associated with fixed structures.

10. The method according to claim 1, CHARACTERISED IN THAT the method further comprises recording for the purposes of identification, in the data storage means, data relative to one or several of the following objects:

rolling sub-assembly (100, 200),

vehicle (C),

user,

owner.

11. The method according to claim 1, CHARACTERISED IN THAT the method further includes recording in the data storage means, data relative to the maintenance, road activity history or data measured.

12. The method according to claim 1, wherein the vehicle is used for transporting merchandise to a final client, and wherein the method further includes recording in the data storage means, a confidential code transmitted to the final client receiving the merchandise.

13. Device adapted for implementing the method according to claim 1, wherein said storage and communication module (300′

) includes an additional measurement pick-up module (300′

) grouping together the same functionalities as those of the measurement pick-up modules (300) of the wheels and being fixed to the chassis of the rolling sub-assembly (100, 200).

14. Device adapted for implementing the method according to claim 1, wherein the device comprises an additional means of storing energy that is connected to the reception and transmission module (400).

15. The device according to claim 14, further comprising means for communication in low frequencies is provided on the reception and transmission module (400).

16. A system for monitoring pressures and/or temperatures of tires of a vehicle (C) comprising one or more rolling sub-assemblies (100, 200), each of the rolling sub-assemblies having a chassis, axles, and wheels, each wheel having a tire, said system including the following:

measurement pick-up and communication modules (300) associated with each wheel (R) for taking measurements of the pressure and/or of the temperature of the tire of each wheel,

at least one reception and transmission module (400) for information transmitted at radio frequencies (RF) by the measurement pick-up modules and arranged on the axles or the chassis of the vehicle (C),

a means of display and management (500) available in the cab for the driver of the vehicle (C) and communicating by wired network or by radio frequencies (RF) with said reception and transmission module or modules (300),

wherein the system also includes an additional storage and communication module (300′

) installed on each rolling sub-assembly (100, 200), the additional storage and communication module (300′

) comprising;

a data storage means in which are recorded, during a learning phase, a set of unique identifiers and the locations of each measurement pick-up and communication module (300) of said rolling sub-assembly (100, 200),

a means of communication transmitting in radio frequencies (RF) and receiving in low frequencies (LF) communicating at least with the reception and transmission module or modules (400),

a means of storing energy for the purposes of powering the communication means,

in such a way that said storage and communication module (300′

) can retain in memory the set of identifiers and associated locations of the same rolling sub-assembly (100, 200) and is configured to communicate the set of identifiers and associated locations so that the set of identifiers and associated locations are readily available to the system.

17. The system according to claim 16, further including a means for detecting movement of the rolling sub-assembly (100, 200) for the purposes of triggering the emission of the data stored by the means of communication only once the movement has been detected, said detecting means being associated with said storage and communication module (300′

).

18. The system according to claim 16, further including a means for measuring the pressure and/or the temperature, said measuring means being associated with said storage and communication module (300′

), said storage and communication module being provided with a measurement pick-up means.

19. The system according to claim 18 said storage and communication module (300′

) provided with the measurement pick-up means, being provided outside of the rolling sub-assembly (100, 200) in order to know the temperature of the ambient outside air for the purposes of correction by offsetting the measurements taken in the tires by the storage and communication modules (300).

20. The system according to claim 16, wherein said storage and communication module (300′

) is configured to communicate the set of identifiers and associated locations to the means of display and management so that the location of a corresponding one of the tires can be determined for each pressure and/or temperature measurement.