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...
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did some research and yes, some SAW device sensors are coming to market. they don't need a battery, but the sensor must be located quite close to the transmitter, within a few feet or less. so, they mount a transmitter near each tire to interogate the wheel. for aftermarket that means installing sensors in the wheels and then installing transmitters near each wheel and that transmitter then either wired or wireless to the display.
most talk about using CANbus, probably aimed at OEM mfg applications.
the do appear to offer faster response times and faster update rates.
most talk about using CANbus, probably aimed at OEM mfg applications.
the do appear to offer faster response times and faster update rates.
