What’s the formula to this

[SoopraisKing]

If I’m wanting to figure out PID output so when I make adjustments to FF I’ll know what my wgdc will be I need to know where to get Internal mapping numbers.
and am I multiplying boost error by internal mapping and PID gain? Or how do I figure out PID output exactly

FF Curve = Internal Mapping * duty bias/50 * FF/100
PID Output = boost_error (boost vs. boost target) * Internal Mapping * PID Gain
PWM = FF Curve + PID Output

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[i3igpete]

If you're talking about the JB4, diff the logged outputs for FF and WGDC. This is the PID output. In general, the default PID gain of 20 gives the PID a range of +/-8.

 

[SoopraisKing]

So if I want FF closer to wgdc I can try lowering PID gain from 20 to 15?

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