RDK Question: How does the circuit work?
#1
Rennlist Member
Thread Starter
RDK Question: How does the circuit work?
I've read the Excellence article on the system (https://www.callasrennsport.com/File...ing-Part-1.pdf) but my question is a little different.
Like many cars, mine no longer has wheels which will accommodate the wheel sensor, and I don't think that it ever will. I know about the jumper across terminals 2 and 13 of the RDK computer connector, as well, to turn off the notification.
What I want to know is, if one bridges the connection at each of the wheels, is that functionally the same as bridging the 2 terminals at the computer connector? I don't know what else runs through the RDK computer (though the name seems suggestive) but would that be a way to leave that big, computer connector plugged in, while still providing the signal to deactivate the TPMS notification on the dash?
Thanks for any insight
Like many cars, mine no longer has wheels which will accommodate the wheel sensor, and I don't think that it ever will. I know about the jumper across terminals 2 and 13 of the RDK computer connector, as well, to turn off the notification.
What I want to know is, if one bridges the connection at each of the wheels, is that functionally the same as bridging the 2 terminals at the computer connector? I don't know what else runs through the RDK computer (though the name seems suggestive) but would that be a way to leave that big, computer connector plugged in, while still providing the signal to deactivate the TPMS notification on the dash?
Thanks for any insight
#3
Drifting
No it’s not a continuity/no continuity signal from sensor (like say the pad sensors). The RDK box sends out high frequency signal to each sensor, and as long as there’s sufficient pressure in tyre a resonant coil/cap circuit in switch absorbs some of signal, so the signal returned to RDK computer is attenuated. The computer looks for two such signal attenuations per revolution.
#4
Rennlist Member
Thread Starter
Thanks @StratfordShark for the information. It's a bit of a bummer, I was hoping that maybe something like a resistor wired in at each wheel might do the necessary work, but if the computer is counting things then obviously that will be a problem. Nonetheless, I have a cunning new plan: I will bridge the two terminals, but do it inside the RDK connector housing, allowing me to keep it plugged in to the RDK computer with none the wiser.
Cheers
Cheers