Notices
ECU Flash

Changing fuel map scaling

Thread Tools
 
Search this Thread
 
Old Apr 24, 2008 | 09:26 AM
  #1  
Tuner@Swift's Avatar
Thread Starter
Account Disabled
iTrader: (1)
 
Joined: Jun 2006
Posts: 472
Likes: 0
From: Taftville, CT
Changing fuel map scaling

Not the load scale, but the entries in the table itself. I changed mine to disply a 8bit percentage as opposed to AFR. I'd like to view it as IDC, but ecuflash doesn't allow you to reference other memory areas for the required calc.

If you want to see what it looks like as a percentage, create a new scaling and use rom to display = x/255*100 and display to rom = x*255/100

The higher the number, the richer the mix. I think it would make tuning a little easier when you know you need to add a certain percentage, especially if the trageted AFR isn't close to actual AFR.
Reply
Old Apr 24, 2008 | 09:13 PM
  #2  
Jack_of_Trades's Avatar
Evolved Member
iTrader: (17)
 
Joined: Jun 2007
Posts: 3,523
Likes: 2
From: Opelika,AL
Most old school tuners prefer to see it in raw 8bit form from 0 to 255. Your way might make it 'simulate' an IDC scaled fuel map which could help some users. I am trying to dig deeper into the fuel mapping this summer to do two things, create 100% closed loop tuning with a wideband analog input and to display the actual IPW or IDC's in each cell. There is multiple scaling that is involved which must be tracked down in the ECU coding first.

I explained some of it here:

https://www.evolutionm.net/forums/sh...d.php?t=332314
Reply
Old Apr 25, 2008 | 03:23 AM
  #3  
Tuner@Swift's Avatar
Thread Starter
Account Disabled
iTrader: (1)
 
Joined: Jun 2006
Posts: 472
Likes: 0
From: Taftville, CT
Originally Posted by Jack_of_Trades
Most old school tuners prefer to see it in raw 8bit form from 0 to 255. Your way might make it 'simulate' an IDC scaled fuel map which could help some users. I am trying to dig deeper into the fuel mapping this summer to do two things, create 100% closed loop tuning with a wideband analog input and to display the actual IPW or IDC's in each cell. There is multiple scaling that is involved which must be tracked down in the ECU coding first.

I explained some of it here:

https://www.evolutionm.net/forums/sh...d.php?t=332314
I read that thread and had come to similar conclusions myself. Sometime in the near future, Bez is sending me a ROM to test with wideband AFR tracking.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
tephra
ECU Flash
59
Aug 1, 2018 01:02 AM
Igor_Predator
ECU Flash
0
May 7, 2017 01:13 AM
Dynotech Tuning
ECU Flash
80
Sep 20, 2016 01:30 PM
Pd1
ECU Flash
278
Oct 11, 2009 05:17 PM
acamus
ECU Flash
7
Oct 14, 2008 11:55 AM




All times are GMT -7. The time now is 08:05 PM.