Patents Assigned to LDL Technology
-
Patent number: 11155128Abstract: The invention relates to a wheel monitoring device (D) of the type comprising a housing (100) formed from a hollow core (101) containing different components including an electronic board (500) and a power supply battery (600) for said board (500), said housing (100) being positioned inside the tire and fixed to the internal portion (220) of the valve (200) fitted on the wheel, a polymer material filling in the free volume. The device is remarkable in that the housing (100) is preformed so as to provide at least two different superposed parallel installation planes (P1, P2) on which the different components are distributed, said housing (100) being preformed with a lateral opening to enable the different components to slide laterally into their appropriate installation plane (P1, P2).Type: GrantFiled: June 11, 2018Date of Patent: October 26, 2021Assignee: LDL TECHNOLOGY SASInventor: Dominique Luce
-
Patent number: 10926590Abstract: The invention relates to a method for self-tracking of a data acquisition sensor equipping a wheel including a tire on a vehicle comprising a plurality of wheels (200) and being equipped with a system comprising an electronic unit (300) for a data acquisition sensor placed in each tire equipped with a radio-frequency transmitter for the purpose of the wireless transmission of said data to a central transmission and reception module (100) placed on the axle or frame of the vehicle, with the central transmission and reception module (100) receiving and decoding the information signals issued by the transmitters of each wheel, each electronic unit (300) being equipped to measure acceleration. The method is remarkable in that it consists of determining the front and rear of a tire by measuring the acceleration.Type: GrantFiled: October 10, 2018Date of Patent: February 23, 2021Assignee: LDL TECHNOLOGY SASInventors: Thierry Moreau, Benjamin Martinez
-
Patent number: 10682892Abstract: The invention relates to a method for managing data relating to an assembly forming a wheel (R) of a vehicle (C), said wheel (R) including a tyre mounted on a rim, said wheel having a measurement module (110), said tyre having an identifier made up of a radio tag (200) such as an RFID marker, said wheel being capable of having different states: mounted in which said tyre is mounted on the rim; and unmounted in which said tyre is not mounted on the rim, in which the measurement module (110) detects a pressure variation inside the tyre, and in which the storage memory of said measurement module (110) is rewritable, characterised in that said method consists of in the event of a pressure variation, replacing the data stored in the measurement module (110) with new data from another tyre. The invention is useful in the management of data relating to tyres and wheels.Type: GrantFiled: June 22, 2012Date of Patent: June 16, 2020Assignee: LDL TechnologyInventors: Manuel Bracq, Philippe Lefaure
-
Patent number: 10328875Abstract: The invention concerns a method for managing the load of a vehicle (C) of the type of that equipped with at least one module for transmitting data (110, 120, 130) through radiofrequency signals (F1, F2, F3) and one module for receiving (120, 220) data from the transmission module, said vehicle (C) and the different modules being disposed so that the load, once present, has an impact on the propagation of the radiofrequency signal, remarkable in that it comprises the following operation: detection of the variation of the spectral signature of the signal received (F2?) by the receiving module (120, 220), in order to detect variations, in particular corresponding to the presence and/or absence of a load (600). The invention also concerns the device enabling said method to be implemented.Type: GrantFiled: May 29, 2017Date of Patent: June 25, 2019Assignee: LDL TECHNOLOGY SASInventor: Paul Gabaudan
-
Patent number: 10035389Abstract: A device (D), for clamping an electronic box (B) on a tyre rim (J), comprises an electronic box (B) of a pressure and/or temperature sensor, at least one flexible tie (200) making at least one loop around the rim (J) and at least one means for tensioning said flexible tie, remarkable in that said tensioning means comprises a lever (110) mounted so as to be able to pivot with respect to a plate (120) that comes into abutment on the rim (J), said lever (110) passing from a raised position to a position folded down against the plate (120), the raised position allowing mounting of the ends (210 and 220) and the folded-down position tensioning said flexible tie (200) for the purpose of fixing the box (B) to the rim.Type: GrantFiled: November 2, 2015Date of Patent: July 31, 2018Assignee: LDL TECHNOLOGYInventor: Dominique Luce
-
Patent number: 9884523Abstract: 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.Type: GrantFiled: October 9, 2014Date of Patent: February 6, 2018Assignee: LDL TECHNOLOGY S.A.S.Inventor: Thierry Moreau
-
Patent number: 9834044Abstract: A device (D) fixes, to the internal wall of a tire (P), an electronic box (100) for measuring parameters inside the tire, the device (D) associating the box (100) with a flexible receptacle (200) which, being fixed to the internal wall by an adhesion means (300), is preformed so as to accept and hold said box (100), remarkable in that said flexible receptacle (200) forms a compartment (210) equipped with an opening (220), by means of which said box (100) is introduced and which is bordered by an edge (221) extending externally and offering a contact surface (222) for the adhesion means (300) so that, once the receptacle (200) is fixed, said opening (220) is closed by the internal wall on which the receptacle (200) is fixed.Type: GrantFiled: November 13, 2015Date of Patent: December 5, 2017Assignee: LDL Technology SASInventor: Dominique Luce
-
Patent number: 9469168Abstract: The invention relates to a method of identifying sensors (C1, C2, C3, C4) of an information system for a vehicle (V1) of the type that links a plurality of sensors housed in the wheels and equipped with a subassembly for transmitting the collected data to a module (100) for transmitting and receiving said collected data, which is equipped with at least one transmission/reception antenna (110), in which each axle end is fitted with twin wheels, an inner wheel and an outer wheel, each wheel accommodating an equipped sensor (Ci or Ce) of a transmission subassembly, said method being noteworthy in that it consists in varying the power of the transmission antenna (110) in such a way that the transmission field of the antenna varies and includes or excludes the sensor(s) (Ci, Ce) located within its radius of action. The invention also relates to the device for implementing the method described above. Applications: detection and transmission of parameters from vehicle tires.Type: GrantFiled: November 12, 2008Date of Patent: October 18, 2016Assignee: LDL TechnologyInventor: Philippe Lefaure
-
Patent number: 9415642Abstract: The invention relates to a method of replacing a defective sensor (100) of a surveillance system for monitoring in particular the pressure of the wheels of a vehicle (V) of the type of that comprising: wireless sensors (100) disposed in each wheel and a receiver; a unique identifier number being assigned to each sensor (100) thus making it possible for the receiver to identify the signal. This method is noteworthy in that it consists in: removing the defective sensor (100); identifying and logging the unique identifier number of the defective sensor (100); identifying and logging the communication protocol used on the vehicle; assigning said unique identifier number to a new virgin sensor (200, 200?) with neither assigned communication protocol nor assigned identifier number and simultaneously; programming the new sensor (200, 200?) so that it utilizes said communication protocol. The invention also relates to the device D and the sensor 200 making it possible to implement same.Type: GrantFiled: November 19, 2010Date of Patent: August 16, 2016Assignee: LDL TechnologyInventors: Philippe Lefaure, Thierry Moreau
-
Patent number: 9235739Abstract: Disclosed is a communication device of a system for monitoring wheels of a vehicle (C), the wheels (R) being equipped with a tire comprising an electronic chip (200), the tire comprising a metal structure (S), remarkable in that it comprises an electronic module (110) housed in the wheel (R) of the vehicle (C), the electronic module (110) transmitting waves (O) over a frequency range established so as to enable the waves to be reflected on the metal structure (S), so that the waves (O) can reach the chip (200) whatever the position thereof with respect to the module (110) so that the module (110) can correspond with the chip (200) for the purposes of activation and/or transmission of data for writing and/or reading. Also disclosed is a communication method. Applications: monitoring of tires.Type: GrantFiled: June 17, 2013Date of Patent: January 12, 2016Assignee: LDL TECHNOLOGYInventors: Manuel Bracq, Philippe Lefaure
-
Patent number: 8789411Abstract: A device for clamping an electronic pressure and/or temperature measurement housing onto a rim inside of a tire, comprises a cable including a plurality of twisted filaments. The cable makes a turn around the rim, and urges the housing against the surface of the rim, forming a resilient connection allowing axial movement of the housing on the rim, thereby preventing the housing from bearing a stress of the tire during mounting and removal stages.Type: GrantFiled: May 31, 2011Date of Patent: July 29, 2014Assignee: LDL Technology S.A.S.Inventor: Dominique Luce
-
Patent number: 8417419Abstract: The invention relates to a device for locking (D) the steering column of a motorcycle (M), which includes a first module (200) secured to the rotating column and a second module (100) secured to the frame of the vehicle (M), which is stationary with respect to said column, said frame mechanically limiting the angular amplitude of rotation of said column, a module (200) including a locking bolt (211) projecting toward the other module (100), and the other module (100) including two flat bolts (110) projecting toward the other module (200).Type: GrantFiled: October 14, 2010Date of Patent: April 9, 2013Assignee: LDL Technology S.A.S.Inventor: Philippe Lefaure
-
Publication number: 20130061456Abstract: The invention relates to a method of replacing a defective sensor (100) of a surveillance system for monitoring in particular the pressure of the wheels of a vehicle (V) of the type of that comprising: wireless sensors (100) disposed in each wheel and a receiver; a unique identifier number being assigned to each sensor (100) thus making it possible for the receiver to identify the signal. This method is noteworthy in that it consists in: removing the defective sensor (100); identifying and logging the unique identifier number of the defective sensor (100); identifying and logging the communication protocol used on the vehicle; assigning said unique identifier number to a new virgin sensor (200, 200?) with neither assigned communication protocol nor assigned identifier number and simultaneously; programming the new sensor (200, 200?) so that it utilizes said communication protocol. The invention also relates to the device D and the sensor 200 making it possible to implement same.Type: ApplicationFiled: November 19, 2010Publication date: March 14, 2013Applicant: LDL TechnologyInventors: Philippe Lefaure, Thierry Moreau
-
Patent number: 8258931Abstract: The invention relates to a method of positioning sensors on wheels (200 and 300) installed coaxial to the same end of one and the same axle of a vehicle (C) comprising a receiving module (100) associated with the body of the vehicle, noteworthy in that it consists in positioning the sensors (210 and 310) at an angular interval greater than or equal to ninety (90) degrees of a wheel (200) relative to the other (300) so that, when operating in displacement mode, the distance between the receiving module and the sensor varies according to the wheel rotation, and in using a link of low frequency (LF) type so that the creation of a distance between the points of emission makes it possible to vary the power of the signals received, thus rendering them distinct. The invention also relates to a device making it possible to implement the method described hereinabove. Applications: measurement and transmission of data associated with the wheels of a vehicle.Type: GrantFiled: May 9, 2008Date of Patent: September 4, 2012Assignee: LDL TechnologyInventor: Philippe Lefaure
-
Patent number: 8074508Abstract: The invention relates to a device (D) for fastening an electronic detection unit (100) for tires to a rim (J), this unit being of the type which is fastened to the valve (200), which valve comprises a part (210) outside the rim and a part (220) inside the rim, said device consisting of a connection module (300) connected on the one hand to the inner part (220) of the valve (200) and on the other hand to a preformed receptacle (400) for accommodating said electronic unit (100), distinguished in that said receptacle (400, 400a, 400b) forms an accommodation volume which is open on the tire tread side. Applications: detection unit fastened to the vehicle wheels.Type: GrantFiled: September 18, 2007Date of Patent: December 13, 2011Assignee: LDL TechnologyInventor: Dominique Luce
-
Patent number: 7257998Abstract: An assembly (M) of a detection unit (100) for placement inside a tire with a rim having a connection aperture (210) is provided. The assembly (M) can include a detection unit (100) for receiving detection components, a valve body (300), a seal (400) for providing a seal between the valve body (300) and the rim (200), and fastener (500) for holding the valve body (300) in position on the rim (200). One or more of the detection unit (100), the valve body (300), the fastener (500) for holding the valve body (300), or a combination thereof, is preformed to penetrate the connection aperture (210) so as to engage the connection aperture (210) when the assembly (M) is subjected to tangential stresses.Type: GrantFiled: October 11, 2005Date of Patent: August 21, 2007Assignee: LDL TechnologyInventor: Dominique Luce