Bass Shakers......troubleshooting (?)

[KSR Motorsports]

Help! Pulling my hair (what´s left of it ) out here!
Scenerio: I´m running an Earthquake shaker under my seat and a puck under my pedal deck. I´m using SimHub for tuning and it is and always has worked perfect.

Problem: Brake DRAG!

I can calibrate in the TCP and the display bars are rock solid until.....I fire up the amp driving the shakers. Soon as I do the Brake bar gets wonky. Kinda flickers, jumps around a bit.
Which in turn (regardless of what sim I´m racing) requires tuning out the "false braking".

Easy enough but.......I have to dead-zone (or turn the amp volume WAY down) to kill the sketchy signal. Brakes drag otherwise.

TM T3PA Pro pedals with load cell mod / Earthquake Amp / Earthquake shaker + Dayton shaker.

Any and all suggestions will be tried (if I have´nt already a bazillion times)

Thanks!
/V

 

[broodro0ster]

Speakers (and bass shakers) create a magnetic field. I'm guessing your pedals are sensitive to that.

 

[KSR Motorsports]

Be my guess as well but more specifically, the load cell. Seems to me that the wonky signal started with that addition.

Strange thing there is that if I disconnect the puck under the pedal deck the signal is still "dirty"

Back to the drawing board. I´ll be bald soon ;-)

 

[Neilski]

Be my guess as well but more specifically, the load cell. Seems to me that the wonky signal started with that addition.

Strange thing there is that if I disconnect the puck under the pedal deck the signal is still "dirty"

Back to the drawing board. I´ll be bald soon ;-)

Load cell amps have to work with a really tiny signal - if the shielding on it is letting through a little bit of EMI then that could be the root problem. If so, you might still be able to adjust the routing of some of the cables and gain an improvement.

 

[Brett Horton]

I have always been suspect of putting your bass shakers on the pedal deck anyway... TONS of vibration being emitted much less EMI. Could it be the "extreme" vibration aiding your issues?

 

[KSR Motorsports]

I have always been suspect of putting your bass shakers on the pedal deck anyway... TONS of vibration being emitted much less EMI. Could it be the "extreme" vibration aiding your issues?

Well...the thing is even if I remove (disconnect) the puck under the deck the dirty signal problem persists. That and when I turn the volume to 0 on the amp (zero vibration) the brake meter in the TMCP is sketchy.

So as you guys have noted, EMI is the most likely culprit. Gonna try to shield the cables to the puck and/or re-route them.

And if your on the fence about adding a puck under the pedal deck, don´t let my woes deter you. I run mine on a separate channel and keep the "volume" of that shaker turned way down. It is really usefull for ABS chatter, brake lock and lateral slip. Having that feedback from the pedal deck is real cool ;-)