Siemens Vdo Automotive Corporation

Ldl Technology

Siemens Aktiengesellschaft

Continental Automotive France

Ldl Technology Sas

Philippe Lefaure

Georges Fonzes

Manuel Bracq

Martin Fischer

Gerhard Goeser

Thierry Moreau

Alain Brillion

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 (), said tyre having an identifier made up of a radio tag () 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 () detects a pressure variation inside the tyre, and in which the storage memory of said measurement module () is rewritable, characterised in that said method consists of in the event of a pressure variation, replacing the data stored in the measurement module () with new data from another tyre. The invention is useful in the management of data relating to tyres and wheels.

Method for managing tyre identifiers

The invention relates to a method of identifying sensors (C, C, C, C) of an information system for a vehicle (V) 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 () for transmitting and receiving said collected data, which is equipped with at least one transmission/reception antenna (), 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 () 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.

Method and device for identifying sensors housed in tyres

The invention relates to a method of replacing a defective sensor () 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 () disposed in each wheel and a receiver; a unique identifier number being assigned to each sensor () thus making it possible for the receiver to identify the signal. This method is noteworthy in that it consists in: removing the defective sensor (); identifying and logging the unique identifier number of the defective sensor (); identifying and logging the communication protocol used on the vehicle; assigning said unique identifier number to a new virgin sensor (') with neither assigned communication protocol nor assigned identifier number and simultaneously; programming the new sensor (&#x2032;) so that it utilizes said communication protocol. The invention also relates to the device D and the sensormaking it possible to implement same. Applications: detection of data available inside the wheels of a vehicle.

Method of replacing a detection housing placed inside the wheels of a vehicle, device and sensor allowing the implementation thereof

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 (), the tire comprising a metal structure (S), Also disclosed is a communication method. Applications: monitoring of tires.

Communication device of a system for monitoring the wheels of a vehicle and communication method

The invention relates to a device for locking (D) the steering column of a motorcycle (M), which includes a first module () secured to the rotating column and a second module () secured to the frame of the vehicle (M), which is stationary with respect to said column, The invention also relates to a process of operation of said device.

Device and process for automatic locking of a steering column

The invention relates to a method of positioning sensors on wheels (and) installed coaxial to the same end of one and the same axle of a vehicle (C) comprising a receiving module () associated with the body of the vehicle, noteworthy in that it consists in positioning the sensors (and) at an angular interval greater than or equal to ninety (90) degrees of a wheel () relative to the other () 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.

Method of positioning sensors for twinned wheels of a vehicle

The invention relates to a process of correction for determining, by a central unit that is provided with a receiver and that equips a vehicle, the longitudinal position, either on the front wheel assembly or on the rear wheel assembly, of emitters that are each mounted on a wheel of said vehicle. This process consists of, in a preliminary phase, determining and storing, for each wheel of the vehicle, a reference field level, received by the receiver and having for an origin an emitter that is combined with said wheel and that exhibits a given mean radiated power. Then, during each start-up of the vehicle and according to the process of the invention, the field levels that are received by the receiver are analyzed, and the location of each of said emitters is deduced therefrom; the analyzed field levels are compared to the reference field levels that correspond to the same location; the deviation between the analyzed field levels and the corresponding reference field levels is derived from this comparison, and the value of each analyzed field level is corrected by a value that is equivalent to the computed deviation, such that said analyzed field level is brought to the same level as the corresponding reference field level.

Process and device of correction for determining the longitudinal position of an emitter mounted on a wheel of a vehicle

Each sensor is provided with an emitter and the vehicle is provided with a corresponding receiver adapted to receive signals emitted by each sensor. The receiver is provided with at least one antenna disposed such that it is not located substantially equidistantly from the sensors, the antennas being located on a same side of the vehicle. The location of the sensors is carried out by analyzing the power of the field received by the receiver of each antenna for each sensor, the field power received by one antenna being the greater, the nearer to the antenna is the sensor that emitted the corresponding signal.

Method for locating sensors mounted each on a vehicle wheel

A data transmission method for a tire-pressure monitoring system () of a vehicle. The data is transmitted by wheel units () to a central computer () located in the vehicle. The method comprises:

Data transmission method for a tire-pressure monitoring system of a vehicle

A communication method between a badge and a vehicle whereby a low range transmitter associated with the vehicle transmits a low frequency signal towards the badge which replies by sending a RF signal of longer range towards the vehicle. A receiver of the badge designed to receive a RF signal is placed in standby mode in accordance with a predetermined rhythm and a transmitter associated with the vehicle sends during a standby phase of the badge a RF signal whereto the badge replies with a RF signal. The invention is applicable to hands-free systems.

Communication method between a badge and a motor vehicle

Device for monitoring pressures of vehicle tires

The invention relates to a method for automatically determining the position of the wheels of a motor vehicle (), characterised in that it consists in:&#x2014;measuring () the temperature of each wheel () of the vehicle; and determining () the position of the wheels on the vehicle according to the temperature measured. The invention also relates to a corresponding position-finding device. The device is particularly suitable for monitoring the pressure inside tires.

Method for automatically determining the position of the front and rear wheels of a motor vehicle

A method for automatically locating a motor vehicle wheel comprises the following steps: transmission by the wheel unit (to) of high-frequency signals representing, at least, the wheel pressure whereon the wheel unit is mounted, and a code identifying the wheel; reception by the central unit () of the high-frequency signals transmitted by the wheel unit. The method further comprises the following steps: transmission of low-frequency signals by at least a transmission device (') mounted on the vehicle proximate to the wheels along a predetermined position, so as to activate the units arranged proximate; reception of the low-frequency signals by the wheel units and in response, transmission of high-frequency signals by the activated wheels, the signal comprising at least the code identifying the activated wheels, and reception of the high-frequency signal by the central unit () associated with the code identifying the activated wheels, at the position of the transmission device(s)&#x2032;).

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Montbrun Lauragais, France

Philippe Lefaure