Title: Help with unsteady boost Post by: hipeka on June 12, 2014, 01:00:04 PM Hi,
I have problems to get steady boost curve. After new version its usually quite steady but after a while its starts to overboost and oscillate after peak boost. I think its something to do with I-value regulation at boost PID. Can someone who understand this PID thing take a look at this log file and say what values should i adjust? Is it just put lower value to LDEIAP, stock value is -30hPa if my map pack is correct. Car is Audi A4 B5 1.8t Quattro AWT (Euro -version with wideband, 4B0906018CG). Equipped with K03-073 from BEX, BEX exhaus manifold and EV14 550CC injectors. Here are .csv file WOT run at 3rd gear and my current tuned file. Title: Re: Help with unsteady boost Post by: nyet on June 12, 2014, 03:16:17 PM Are your I limit trims non-zero?
Title: Re: Help with unsteady boost Post by: hipeka on June 12, 2014, 09:36:23 PM Are your I limit trims non-zero? ldimxa_0 ldimxa_1 ldimxa_2 ldimxa_3 ldimxa_4 6.35 4.1 3.7 3.95 0 Title: Re: Help with unsteady boost Post by: hipeka on June 14, 2014, 01:39:12 AM I change LDEIAP -30hPa to -200hPa and now I-value trims stay at zero value. It helps a little but still overshooting. I try to get new logs soon.
I think TLDIAPN is on 19ACA on my .bin but RPM scaling looks a bit weird to this application (10084). I try to compare mine to 8N0906018CB (225TT) map pack. Is there any other fully defined map pack which would be closer to 4B0906018CG? How should i adjust TLDIAPN to get I-adaption work correct? Title: Re: Help with unsteady boost Post by: _nameless on June 14, 2014, 03:59:35 AM I change LDEIAP -30hPa to -200hPa and now I-value trims stay at zero value. It helps a little but still overshooting. I try to get new logs soon. look at awm def files or mk4I think TLDIAPN is on 19ACA on my .bin but RPM scaling looks a bit weird to this application (10084). I try to compare mine to 8N0906018CB (225TT) map pack. Is there any other fully defined map pack which would be closer to 4B0906018CG? How should i adjust TLDIAPN to get I-adaption work correct? Title: Re: Help with unsteady boost Post by: hipeka on June 15, 2014, 01:46:33 PM look at awm def files or mk4 I dont have good def file for CH file. Title: Re: Help with unsteady boost Post by: hipeka on June 30, 2014, 07:35:27 AM I-limit trims still creeping up even with increased LDEIAP and zeroed TLDIAPN.
That cause overboost when actual meets requested and also boost oscillation. |