Abstract: A method for controlling a satellite configured to exchange data with a plurality of vehicles positioned in a visibility zone of the satellite. The method includes estimating a number of vehicles eligible for a specific service present in the visibility zone using a global data receiver module configured to receive data from all of the visibility zone; and activating, depending on the estimated number of vehicles eligible for the specific service in the visibility zone, the global data receiver module or all or some of the local data receiver modules, configured to receive data from a respective sub-zone of the visibility zone, for reception of data.

Abstract: A method for estimating a number of vehicles present within an area of visibility of an LEO satellite that consumes little energy for the LEO satellite and that is compact in terms of bandwidth.

Abstract: A satellite communication module for a vehicle. The module includes an electronic control unit and at least one antenna capable of communicating with a plurality of satellites that are characterized by a predefined orbital trajectory and the same predefined speed. The at least one antenna being configurable according to a plurality of configurations, each configuration allowing the at least one antenna to radiate in an angular window, each angular window corresponding to an area of the sky that is characterized by a longitudinal coordinate and a transverse coordinate. The control unit includes a memory area. The memory area including a calibration table of the at least one antenna. The control circuit being configured to adapt the radiation of the at least one antenna so that the antenna radiates in the direction of the at least one determined angular window during the corresponding given time interval.

Abstract: An electronic control unit for a vehicle. The electronic control unit including a memory region in which is stored a lookup table indicating, depending on a type of alert and on the distance between the vehicle and a traffic event relating to the alert, the need to send a response message to the alert signal. The electronic control unit being configured to: receive an alert signal relating to a traffic event containing the type of alert and the position of the traffic event, receive the predetermined position of the vehicle, determine the distance between the vehicle and the traffic event, determine, based on the lookup table and on the determined distance, whether or not there is a need to send a response message to the alert signal, and dispatch a command signal commanding a response message to be sent.

Abstract: A satellite communication module for a vehicle. The module includes an electronic control unit and at least one antenna capable of communicating with a plurality of satellites that are characterized by a predefined orbital trajectory and the same predefined speed. The at least one antenna being configurable according to a plurality of configurations, each configuration allowing the at least one antenna to radiate in an angular window, each angular window corresponding to an area of the sky that is characterized by a longitudinal coordinate and a transverse coordinate. The control unit includes a memory area. The memory area including a calibration table of the at least one antenna. The control circuit being configured to adapt the radiation of the at least one antenna so that the antenna radiates in the direction of the at least one determined angular window during the corresponding given time interval.

Abstract: A radio-transmitting sensor for a vehicle wheel, suitable for measuring at least one physical quantity and for transmitting a radio signal representative of this measured physical quantity. The sensor includes a measurement and transmission circuit, an antenna impedance matching circuit, and an antenna circuit. The sensor includes a sensitivity switch controlled by the measurement and transmission circuit and suitable for switching the antenna circuit according to two modes: a dynamic mode in which the antenna circuit is configured as a magnetic antenna, and in which the sensor transmits said radio signal representative of the measured physical quantity, this signal including transmitted data frames; and a static mode in which the antenna circuit is configured as an electric antenna.

Abstract: A radio-transmitting sensor for a vehicle wheel, suitable for measuring at least one physical quantity and for transmitting a radio signal representative of this measured physical quantity. The sensor includes a measurement and transmission circuit, an antenna impedance matching circuit, and an antenna circuit. The sensor includes a sensitivity switch controlled by the measurement and transmission circuit and suitable for switching the antenna circuit according to two modes: a dynamic mode in which the antenna circuit is configured as a magnetic antenna, and in which the sensor transmits said radio signal representative of the measured physical quantity, this signal including transmitted data frames; and a static mode in which the antenna circuit is configured as an electric antenna.

Abstract: A method for detecting a user's intention to lock or to unlock a door of a motor vehicle, using a detection device integrated into a handle of the door, including an ultra-high-frequency antenna, one face of which is situated close to a second outer locking surface or respectively a first outer unlocking surface of the handle, an ultra-high-frequency antenna matching circuit, an ultra-high-frequency signal generator and an electronic unit. The method includes determining a parameter representative of a ratio between a power of a signal transmitted by the ultra-high-frequency signal generator to the ultra-high-frequency antenna and a power of a signal reflected from the ultra-high-frequency antenna to the ultra-high-frequency signal generator, which powers are measured beforehand, and detecting the intention to lock or respectively to unlock when the parameter is higher than or lower than a predetermined threshold.

Abstract: A method for detecting a user's intention to lock or to unlock a door of a motor vehicle, using a detection device integrated into a handle of the door, including an ultra-high-frequency antenna, one face of which is situated close to a second outer locking surface or respectively a first outer unlocking surface of the handle, an ultra-high-frequency antenna matching circuit, an ultra-high-frequency signal generator and an electronic unit. The method includes determining a parameter representative of a ratio between a power of a signal transmitted by the ultra-high-frequency signal generator to the ultra-high-frequency antenna and a power of a signal reflected from the ultra-high-frequency antenna to the ultra-high-frequency signal generator, which powers are measured beforehand, and detecting the intention to lock or respectively to unlock when the parameter is higher than or lower than a predetermined threshold.

Abstract: A self-adaptive method for assisting in the inflation of tires of a vehicle that is stationary in an immobilization mode, the method including continuously measuring at least the pressure of each tire by way of a wheel unit, transmitting signals on the state of the tires between each wheel unit and a central unit, these signals being transmitted by each wheel unit through frequency-shift keying between two first predetermined frequencies defining a first frequency band. In a immobilization mode, each wheel unit is reprogrammed such that it transmits, to the central unit, first and second frequency-shift keyed signals respectively with first and second frequency bands, the second band being wider than the first band.

Abstract: A self-adaptive method for assisting in the inflation of tires of a vehicle that is stationary in an immobilization mode, the method including continuously measuring at least the pressure of each tire by way of a wheel unit, transmitting signals on the state of the tires between each wheel unit and a central unit, these signals being transmitted by each wheel unit through frequency-shift keying between two first predetermined frequencies defining a first frequency band. In a immobilization mode, each wheel unit is reprogrammed such that it transmits, to the central unit, first and second frequency-shift keyed signals respectively with first and second frequency bands, the second band being wider than the first band.

Abstract: Disclosed is a battery having a positive terminal and a negative terminal and two electrical connection tongues, each tongue secured to one of the terminals thereof. The battery also includes at least one additional connection tongue secured to one of the terminals thereof, forming a radiating element with the electrical connection tongue secured to the same terminal of the battery.

Abstract: A method for transmitting n identification signals (P1-P4) formulated according to n different protocols, using an electronic casing (6) provided on a wheel (2) of a vehicle, as part of an angular correlation locating procedure. An electronic casing (6) is used, which is programmed to carry out, per wheel turn, x transmissions commanded for x angular positions offset from each other by predetermined angular values and, during each sending operation, a fixed angular position of the electronic casing (6) is determined, to which position is assigned the reference angular position function for determining the x transmission angular positions of the electronic casing, and a burst of n identification signals sent consecutively for transmission successive angular positions of the electronic casing (6) is transmitted, each of the signals being formulated according to one of the n protocols and including data for identifying the electronic casing and the transmission angular position thereof.

Abstract: A self-adaptive method for assisting tire inflation enables control of tire inflation. If the vehicle stops, the central unit of a TPMS (Tire Pressure Monitoring System) can change in a self-adaptive manner from the reception configuration of the “moving” mode at a high bit rate to a “stationary” mode at a low bit rate. At the same time, if there is a variation in the pressure of a tire, the corresponding wheel unit is set for transmission in “stationary” mode at a low bit rate. The power Pa received at the central unit varies according to a curve (20) which shows, in the illustrated example, two positions of poor reception. By replacing high bit rate transmission with low bit rate transmission, the signal/noise ratio is improved and there is a gain in reception sensitivity of about 5 dB, and the risks of disturbance of the received power are virtually eliminated.

Abstract: Method for transmitting a radio signal between a moving electronics unit of a wheel and a fixed central electronic control unit of the vehicle, includes: defining an angular reference point of the wheel; defining a division of one wheel revolution into successive basic sectors, and transmitting successive radio signals between the two units so that each signal is transmitted at a calculated predetermined wheel angular position; calculating the angular rotation speed of the wheel; determining a minimum wheel rotation sector required for the transmission time of a signal between the two units, at the calculated angular rotation speed; determining an angular offset of transmission between a first and a second following signal, with respect to the angular reference point, as being equal to the smallest multiple of the basic division sector which covers the time required for transmission of the first radio signal at the calculated angular rotation speed.

Abstract: Disclosed is a battery having a positive terminal and a negative terminal and two electrical connection tongues, each tongue secured to one of the terminals thereof. The battery also includes at least one additional connection tongue secured to one of the terminals thereof, forming a radiating element with the electrical connection tongue secured to the same terminal of the battery.

Abstract: A low-frequency emission electronic unit (20?) includes two low-frequency antennas (B1, B2). The second antenna (B2) is passive and resonant, oriented along the main axis (Y) of the first low-frequency antenna (B1) and is adapted to generate two low-frequency fields (D2, D2?) at right angles to the field (D1) emitted by the first antenna (B1). The low-frequency emission electronic unit (20?) makes it possible to reduce the zones of rupture of reception of the low-frequency signals by the wheel unit (13) situated in proximity in which the low-frequency signals emitted by the low-frequency emission electronic unit are not received by the closest wheel unit (13). A low-frequency signal transmission method alternating the emissions of waves by the two antennas (B1, B2) is also described.

Abstract: A device (10) for charging a mobile terminal by magnetic coupling, includes a first charging module (11) designed to form a charging signal at a first charging frequency, a primary coil (13) composed of a set of turns, a ferromagnetic body (14), a second charging module (12) designed to form a charging signal at a second charging frequency, higher than the first charging frequency. Furthermore, the charging device includes first routing elements (150) designed to connect/disconnect the primary coil (13) to/from the first charging module (11) and to/from the second charging module (12), elements (16) for adjusting the number of turns on the primary coil (13) and elements (19) for saturating the ferromagnetic body (14) at the second charging frequency. A charging method is also described.

Abstract: Method for transmitting a radio signal between a moving electronics unit of a wheel and a fixed central electronic control unit of the vehicle, includes: defining an angular reference point of the wheel; defining a division of one wheel revolution into successive basic sectors, and transmitting successive radio signals between the two units so that each signal is transmitted at a calculated predetermined wheel angular position; calculating the angular rotation speed of the wheel; determining a minimum wheel rotation sector required for the transmission time of a signal between the two units, at the calculated angular rotation speed; determining an angular offset of transmission between a first and a second following signal, with respect to the angular reference point, as being equal to the smallest multiple of the basic division sector which covers the time required for transmission of the first radio signal at the calculated angular rotation speed.

Abstract: A method for transmitting n identification signals (P1-P4) formulated according to n different protocols, using an electronic casing (6) provided on a wheel (2) of a vehicle, as part of an angular correlation locating procedure. An electronic casing (6) is used, which is programmed to carry out, per wheel turn, x transmissions commanded for x angular positions offset from each other by predetermined angular values and, during each sending operation, a fixed angular position of the electronic casing (6) is determined, to which position is assigned the reference angular position function for determining the x transmission angular positions of the electronic casing, and a burst of n identification signals sent consecutively for transmission successive angular positions of the electronic casing (6) is transmitted, each of the signals being formulated according to one of the n protocols and including data for identifying the electronic casing and the transmission angular position thereof.