Re:You don't ever own an electric vehicle
by BenjiWiebe on Monday March 14, 2022 @02:35PM
(#30676226)
Ok, first off - a lot of cars do know which tire is which. Most do it by associating certain TPMS IDs with certain tires. This is what the technician is setting when he does a TPMS re-learn (or reset) after rotating your tires.
Other vehicles actually know which is which without being told. I'm not sure exactly how this is done, but I'm guessing/vaguely recall hearing they do this by using multiple receivers.
As for tracking from a distance - these sensors have very low output power, and a lot of their signal is blocked by the metal wheel. It can somewhat be done but you'll need more than one receiver per block if you want 100% coverage.
Other vehicles actually know which is which without being told. I'm not sure exactly how this is done, but I'm guessing/vaguely recall hearing they do this by using multiple receivers.
As for tracking from a distance - these sensors have very low output power, and a lot of their signal is blocked by the metal wheel. It can somewhat be done but you'll need more than one receiver per block if you want 100% coverage.
Sources: worked as a tire shop technician for a while, messed around with SDR, read a lot online. Also: https://web.wpi.edu/Pubs/E-project/Available/E-project-09111...