It is currently Sat Nov 17, 2018 11:01 pm



Post new topic Reply to topic  [ 129 posts ]  Go to page Previous  1 ... 9, 10, 11, 12, 13
Author Message
 Post subject: Re: Auto tune
PostPosted: Fri Apr 13, 2012 4:06 am 
Offline

Joined: Wed Mar 17, 2010 9:24 am
Posts: 329
ECU Model: S80 Pro
Firmware Version: 62
OK, so I tried the P-108, I-11, D-0 @ 12hz, +/- 20% adjustment last night and this morning into work and it worked great. My base map is reasonably OK, but this revised loop brought the lambda targets into line quickly with minimal overshoot.

I could feel the results almost immediately. Part throttle is a LOT smoother. I'll leave it a couple of weeks for the FC map to build up some results and then take it from there.

Previously I was using P-500, I-50, D-0 @ 3hz and anything more than +/- 10% used to cause wild AFR fluctuations, especially holding it on part throttle in 2nd and 3rd gear.

Good schooling guys!


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Fri Apr 13, 2012 10:33 am 
Offline
User avatar

Joined: Fri Aug 05, 2011 8:01 am
Posts: 139
Location: A cold garage / Sideways 'round cascades
ECU Model: S40 Pro
Distributor: http://www.dtafast.co.uk
Firmware Version: 78.01
ignitionautosport wrote:
look it up on Wikipedia if you want to blow your mind to tiny pieces.

^^^tiny pieces love it :lol: *understatement*

we need to set up some sort of charitable foundation to help us all suffering mental difficulties after *rsing about with these honey nut fruit loops.

i'm forever twitching and rocking back and forth in dark rooms muttering about integers and gain overshoots. maybe this is just me :lol:

_________________
Renault 1.6 K7M, '92 Clio 16v shell, Rotrex C30-74, S40, Faceache, Sh***er, YouTube Blue Shed Channel


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Fri Apr 13, 2012 10:39 am 
Offline
User avatar

Joined: Fri Aug 05, 2011 8:01 am
Posts: 139
Location: A cold garage / Sideways 'round cascades
ECU Model: S40 Pro
Distributor: http://www.dtafast.co.uk
Firmware Version: 78.01
VR6Turbo wrote:
OK, so I tried the P-108, I-11, D-0 @ 12hz, +/- 20% adjustment last night and this morning into work and it worked great. My base map is reasonably OK, but this revised loop brought the lambda targets into line quickly with minimal overshoot.

I could feel the results almost immediately. Part throttle is a LOT smoother. I'll leave it a couple of weeks for the FC map to build up some results and then take it from there.

Previously I was using P-500, I-50, D-0 @ 3hz and anything more than +/- 10% used to cause wild AFR fluctuations, especially holding it on part throttle in 2nd and 3rd gear.

Good schooling guys!

so what you are saying is... i was right all along over the past 24 months? :lol: the force is getting stronger in the vee dub for sure, young skywalker...

small and fast for the win. every time. just look at me hahaha

edit: no, the force is not strong. no jedi powers here at all. *SMALL*. you say you've a pretty good fuel map and are running 20% swings... come on dude...

_________________
Renault 1.6 K7M, '92 Clio 16v shell, Rotrex C30-74, S40, Faceache, Sh***er, YouTube Blue Shed Channel


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Fri Apr 13, 2012 1:29 pm 
Offline

Joined: Wed Mar 17, 2010 9:24 am
Posts: 329
ECU Model: S80 Pro
Firmware Version: 62
I just gave it 20% authority just in case, but so far the most it's removed is 12%, which is on the very low throttle openings at motorway speeds, and even then it's because I changed the AFR from 14.7 to 16 :D

But yeah, you were right and when it's finished it'll have more power than the Emperor himself and no more than 2% adjustment!


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Fri Apr 13, 2012 2:27 pm 
Offline
User avatar

Joined: Fri Aug 05, 2011 8:01 am
Posts: 139
Location: A cold garage / Sideways 'round cascades
ECU Model: S40 Pro
Distributor: http://www.dtafast.co.uk
Firmware Version: 78.01
sweet. 0 reduction and 10 up, me. for when i can't find a v-power pump or run out of sunoco lol

_________________
Renault 1.6 K7M, '92 Clio 16v shell, Rotrex C30-74, S40, Faceache, Sh***er, YouTube Blue Shed Channel


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Sat Apr 14, 2012 3:48 pm 
Offline
User avatar

Joined: Fri Dec 04, 2009 1:45 am
Posts: 588
Location: Pennsylvania, USA
ECU Model: S80 Pro
Distributor: DTA UK
Firmware Version: 73
Sort of confused what to do with the idle PID since max is 100

_________________
1992 700RWHP Pump Gas BMW


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Sat Apr 14, 2012 7:19 pm 
Offline

Joined: Sat Nov 12, 2011 6:24 pm
Posts: 96
Location: Montreal, Canada
ECU Model: S100 Pro
Firmware Version: 61
Jon,
Try P=100, I=11, D=0. On the simulator this gives a slightly faster response on full scale changes as P=100, I=10.5, D=0 which gives better results on smaller changes.
Let us know how it goes, I was planning on trying these figures today but something else came up. I'm also going to follow VR6Turbo's advice and choose one or 2 PWM values rather than the increasing rows that I have. I just rans out of time today and can only mess with my car on Saturdays right now :( .


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Sat Apr 14, 2012 9:03 pm 
Offline
User avatar

Joined: Fri Dec 04, 2009 1:45 am
Posts: 588
Location: Pennsylvania, USA
ECU Model: S80 Pro
Distributor: DTA UK
Firmware Version: 73
Coincidentally I did try 100, 11, 0 - seems to work. Just need to get the DC table better setup.

_________________
1992 700RWHP Pump Gas BMW


Top
 Profile  
 
 Post subject: Re: Auto tune
PostPosted: Wed Apr 18, 2012 9:39 am 
Offline

Joined: Mon Aug 08, 2011 10:18 am
Posts: 24
ECU Model: S60 Pro
Firmware Version: 62
Phew just been reading ALL this thread :shock:

Kutle: Alan offered him a full refund (around August time last year) it would of saved me a whole loada reading if only he'd taken it :mrgreen:


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 129 posts ]  Go to page Previous  1 ... 9, 10, 11, 12, 13

Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Theme designed by stylerbb.net © 2008
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
All times are UTC - 5 hours