Method for identifying pressure sensors and device for implementing said method
AssigneeAteq
InventorMichel Bout
Life of this patent
Estimating the term…
Abstract
A method and device for identifying pressure sensors of a tire pressure monitoring system (TPMS) of a motor vehicle. The method includes emission of a sensor activation signal, receiving of signals from at least two different sensors following activation, attenuation and amplification of the signals received, determination of a value indicative of the power of the signals received, and identification of the spatial position of at least one sensor on the basis of values indicative of the power of the signal received. A device configured as a TPMS tool is used for implementing the method.
Claims10
A method for identifying pressure sensors for an electronic tire pressure monitoring system of a motor vehicle, said pressure sensors (9, C1, C2, C3, C4) comprising at least one module for emitting and receiving data, said method comprising:
- emission (S1) of a sensor activation signal;
- receiving (S2) of a signal coming from each of at least two different pressure sensors positioned in close proximity to one another after the at least two different pressure sensors have been activated;
- attenuation and amplification (S3) of each of the signals received in order to distinguish the signals from each of the at least two different pressure sensors;
- determination (S4) of a value indicative of a power of the signal for each of the at least two different pressure sensor signals received, wherein the value indicative of the power of each signal is at least one of a gain value (G) or an adaptation value of said each signal;
- and
- identification (S5) of a spatial position of at least one pressure sensor of the at least two different pressure sensors on the basis of the determined values indicative of the power of said signals received.
A device (1) for activating at least two pressure sensors positioned in close proximity to one another (9, C1, C2, C3, C4) for an electronic tire pressure monitoring system on a motor vehicle, said device comprising:
- at least one sensor activation means (31);
- a means (33) for receiving signals coming from the at least two pressure sensors;
- an electronic entity (35) configured for at least one of storing or processing information conveyed by the signals received sent by said at least two pressure sensors (9);
- a means for communicating (37) with a remote electronic entity of the motor vehicle, in order to transmit the information conveyed by the signals received;
- characterised in that said receiving means (33) comprises:
- an antenna (33a) for receiving the signals coming from the at least two pressure sensors (9, C1, C2, C3, C4);
- an attenuator (33b) configured for attenuating the signals received;
- an amplifier (33c) configured for amplifying the attenuated signals received, the attenuator and amplifier configured to distinguish the signals from each of the at least two pressure sensors from one another;
- wherein following amplifying the attenuated signals received each of the signals being characterised by a value indicative of power (G);
- and
- wherein said electronic entity (35) being configured for identifying a spatial position of at least one of the at least two pressure sensors (9, C1, C2, C3, C4) on the basis of the values indicative of the power of the signals received.
Dependencies are inferred from the claim text.