Patent ID: 9278589
Filing Date: 2016-03-08
CPC Classification: B60C

Claim Text:
1. A tire pressure monitoring system (TPMS) for a vehicle having a plurality of tires, said system comprising: a plurality of transmitter units where a separate transmitter unit is provided in each tire, and where each transmitter unit transmits TPMS signals including data identifying the tire and the pressure in the tire; and at least one receiver unit receiving the TPMS signals from each of the transmitter units, said at least one receiver unit identifying a signature in each of the TPMS signals and classifying the signatures over time to provide a training set signature representing a location of the transmitter units, where the signature includes a Doppler frequency shift of the received signal associated with tire-rotation-induced cyclical changes in velocity of the transmitter unit in each tire relative to the receiver unit.