Page 15 of 16 FirstFirst ... 510111213141516 LastLast
Results 211 to 225 of 238

Thread: Narrowband Tuning Tool

  1. #211
    Fuel Injected!
    Join Date
    Jan 2012
    Location
    Poland
    Posts
    147
    I have tried to use this tool for MAF 6E cars, and it also works well. However, it needed some tweaks to the datalog to make it work. The MAF / SD templates accept only integer values for cells. Tuning MAF using MAF voltage, the cells have fractional values. I have added another log value with MAF Voltage *100 which solved the problem, but maybe it would be good to add a possibility to have the cells with fractional values.
    Another thing - the MAF tables have the "Modify clipboard" button not working, which is not a big deal, but I can't select multiple cells in the Trimalyzer results and copy them - this is another place for improvement that came into my mind.

    Anyway, the tool does it's job very well and makes tuning much easier :)

  2. #212
    Fuel Injected!
    Join Date
    Mar 2013
    Posts
    1,470
    Hi Steveo,

    I am trying to make it work with the new maf data [MAF CELL number and MAF CELL offset] I have in eehack available. There are some problems to solve though. There are 77 MAF cells, but I can enter only 70 in the MAF layout window. ALso there is a new parameter[maf cell offset 0-255] that weights how far from the selected cell you are. For example if you are at cell 10 and the offset is 245, you will be almost at the cell 11[or 10.96]. So if that is not taken into account the analysis will not be very accurate. Do you think it will be hard to add that in the trymalizer.

  3. #213
    LT1 specialist steveo's Avatar
    Join Date
    Aug 2013
    Posts
    4,007
    i'll look at it, I haven't looked at the source in a while, but it's doable. of course we could add it to eehack's onboard maf analyzer too

  4. #214
    LT1 specialist steveo's Avatar
    Join Date
    Aug 2013
    Posts
    4,007
    adding the extra rows is easy, but i could also do it properly and add a new row when the table is full so it can be any size. there's no limit other than the number of rows in that table (or the size of a 32 bit signed integer)

    the next part, i'd have to add two input parameters for 'maf cell number' and 'maf cell offset' and make them assignable, then create a new maf analysis engine (other than loose or strict) that works on that method.

    shouldn't be too hard i'll make some time for it soon

  5. #215
    Fuel Injected!
    Join Date
    Mar 2013
    Posts
    1,470
    Great. I hope you find some time to add it.

    You can make a strict logic also, if the cell offset oscillate around a particular cell. For example if you are constant around cell 10 with 240 offset and cell 11 with 15 offset. And specify how much deviation is allowed for strict logic will be awesome.

    I found that is really important to keep the % of spread between cells, so you can add a smoothing feature that tries to anticipate the correction for whole region [5-10 cells for example] and find a breakpoint where it ups or downs the correction. It will be a good feature for ve also since it can lead to inj pw fluctuation at steady throttle if the spread is not optimal.

  6. #216
    LT1 specialist steveo's Avatar
    Join Date
    Aug 2013
    Posts
    4,007
    i think affecting adjacent cells but more weakly is the best technique for both 2d and 3d tables, that's why i built trimalyzer since spreadsheets can't do that effectively. once you average across a lot of samples, you end up smoothing regions of the table that aren't affected very much, or 'in between' cells with not enough data.

    i'll try to work on it soon, lots of projects right now. you're getting better with c++, feel free to look at the source any time too. its much better written than eehack..:

    https://github.com/resfilter/trimalyzer

  7. #217
    Fuel Injected!
    Join Date
    Mar 2013
    Posts
    1,470
    I am sure you will find the best possible way to utilize the new datastream and make it the best tuning tool available.
    Most of the coders lack the skills of the tuners or simply don`t know what is needed to write a good tuning program and the result is ultimately sub par product. In your case you combine both of it and the results are amazing. I just can`t imagine what would of happen if you still had an lt1 car around.

    I am slowly getting better with the c++. Still too far from writing complex loops. Now I have a better understanding how it is translated to machine code, but the syntax is the missing point. I need to find a good basic tutorial to start with.

  8. #218
    LT1 specialist steveo's Avatar
    Join Date
    Aug 2013
    Posts
    4,007
    I just can`t imagine what would of happen if you still had an lt1 car around.
    well, you're brilliant with low level stuff. i can't imagine what would happen if you learned to turn it into user level software.

    i'm not a very good programmer but i'm really driven by making things that haven't been done before... eehack and trimalyzer are both completely unique.

    i did test adding a bunch more rows to the table builder thing, it worked fine, but i still have to write a new engine for your 'cell based' maf tuning thing. do you think there's any real advantage to tuning this way? i've always found maf tuning to be really easy, since your changes end up being fairly predictable based on a few samples.

  9. #219
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    6,268
    I've been looking at the trimalyzer-1.4b tool for $OD.

    I have some interesting data to share trimalyzer-1.4b vs. the WBO2 spreadsheet located here: http://www.gearhead-efi.com/Fuel-Inj...g)-Spreadsheet

    I think I have trimalyzer-1.4b correctly configured like the WBO2 spreadsheet; to filer $OD / Closed Loop / PE False / AE False / Idle Flag False / Open Throttle VE Table

    TrimAnalyzer_Setup.JPG

    TrimAnalyzer_Results.JPG

    WBO2 Spreadsheet Results.jpg

    WBO2 Spreadsheet Results_Sample Counts.JPG

    WBO2 Spreadsheet Results_PE.jpg

    I'm embarrassed to admit I was unable to figure out how to get trimalyzer-1.4b to work with WBO2.

    I find it interesting the trimalyzer-1.4b BLM's vs. WBO2 data are different.

    See attached .zip for .csv file used with trimalyzer-1.4b and WBO2 spreadsheet.

    Thoughts?

    dave w
    Attached Files Attached Files

  10. #220
    LT1 specialist steveo's Avatar
    Join Date
    Aug 2013
    Posts
    4,007
    try checking ignore integrator data and maybe use strict or loose method instead of geometric. geometric averages quite a bit in surrounding cells as well, (it's designed to get a fresh tune off the ground quickly since it 'guesses' more for cells with low counts) so comparing it to another analysis method like your spreadsheet isn't going to give you great results like you'd expect to see, however a cursory glance at your data definitely reveals your BLMs are leaner than your wideband data seems to indicate, so you do get what you put into it, is it possible your wideband calibration is a bit off?

    to get trimalyzer to analyze wideband is pretty easy, just put your wideband field in trim bank a instead of a narrowband trim, remove the integrator, and use trim input type 'arbitrary value'. you can use this to analyze other stuff too, basically anything that's a number.

  11. #221
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    6,268
    I'm thinking the WBO2 data is reasonably accurate (+/- 0.2 AFR). It's challenging to define / correlate an AFR vs. BLM. The AFR vs. BLM expectation is "Lean" fuel air mixtures will be similar; AFR's above 14.7 and BLM's above 128. I literally have hundreds of $OD WBO2 data logs that indicate AFR vs. BLM are not similar to one other. OBD2 tuning software ( EFI Live) is seeminly more accurate with "Serial" WBO2 data vs. 0v - 5v WBO2 data. I literally have dozens of WBO2 $OD "Tunes" that out perform $OD BLM "Tunes".

    I think I have correctly configure trimalyzer for WBO2?

    Perhaps the "target" of 128 in the results needs to modified to an AFR value?

    I'm very interested to see if trimalyzer will show a similar $OD AFR vs. BLM data like the spreadsheet.

    dave w

    WBO2 Setup.jpg

    WBO2 Setup Results.jpg

  12. #222

  13. #223
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    6,268
    Quote Originally Posted by steveo View Post
    you probably do want a 14.7 target (or whatever your target is)
    Ok, I just need to figure out how. Any hints on how to set the target to 14.7?

    dave w

  14. #224
    Fuel Injected! Stroked 388's Avatar
    Join Date
    Jan 2017
    Age
    51
    Posts
    114
    Quote Originally Posted by dave w View Post
    Ok, I just need to figure out how. Any hints on how to set the target to 14.7?

    dave w
    It should be open loop AFR Target and closed loop AFR Target I believe

  15. #225

Similar Threads

  1. LS1 Flash Tool Released
    By antus in forum OBDII Tuning
    Replies: 118
    Last Post: 4 Weeks Ago, 07:02 PM
  2. Scan Tool Data Help
    By Kaweh in forum TunerPro Tuning Talk
    Replies: 1
    Last Post: 05-12-2015, 12:15 AM
  3. LT1 auto-tuning tool (web based)
    By steveo in forum GM EFI Systems
    Replies: 3
    Last Post: 10-17-2014, 08:07 AM
  4. Narrowband o2 sensors all created equal?
    By Accrdwgnguy in forum GM EFI Systems
    Replies: 4
    Last Post: 12-19-2013, 12:46 AM
  5. TunerPro Rt used as a scan tool?
    By mudbuggy in forum TunerPro Tuning Talk
    Replies: 21
    Last Post: 01-10-2012, 03:38 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •