04-02-2016, 01:40 PM
Join Date: Dec 2011
Total Cats: 3
Followed the guide below with settings
P = 100
I = 0
D = 0
Held it at 2000rpm Wot runs in 3rd
No matter what I lowered P to nothing changed. Fairly slow spool up gets the wastgate.
The boost duty figure is changing but the same with any PID number.
Followed these guidelines:
Set Integral and Differential Gains to 0% - To make tuning the Proportional gain easier, set the Integral and Differential gains to 0%.
Set Proportional gain to 150% and slowly lower - While tuning Proportional gain, higher numbers mean slower boost climb and lower final boost. For safety, start with a very high gain (150% should be sufficient). Find the RPM that typically spools quickly, and fully and quickly depress the accelerator. Note how much boost is reached. If boost overshoots the target, increase the Proportional gain. Otherwise, reduce the Proportional gain and try again. Do this until boost reaches the target with little or no overshoot.
Switched back over to open loop and all back to normal working from my OL boost control duty table spools upto target 10psi