Battery-free TPMS
The latest vehicles use a TPMS system without any little batteries in the sensors - it relies on the centrifugal action for energy. Do any of the aftermarket TPMS systems for trailers use this tech...
Forum Discussion
Dtank wrote:GordonThree wrote:
There's no sensor inside the wheel. Computer uses voodoo....... My guess
Same voodoo a Thermos uses.
Keeps hot things hot, cold things cold. - How do it know ??
Voodoo, of course !!...:S
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The ABS Sensors sense how fast the wheels are turning, essencally tacs'.. If all wheels are PROPERLLY inflated then tehy all have the same radius and (And diamater) and all turn at the same speed.
If one is low the tire gets effectively "Smaller" and turns faster.
The computer sees this and reports. No voodo involved, simple mathmatics and physics Only "Voodo" to those who deny science.
