this is the app... so it will work with any rom that has DMA code attached.... so if ur rom works with normal dma then it will work with this program/feature.... once all the hardcoded stuff is customised to ur rom

 

Yeah, pretty much! The ALT-Fuel ram address change with the different rom versions, but thats an easy change. It could also be hard-coded to identify which rom you are loading and use the correct set of addresses! Im changing my tactics a bit on the correction factor stuff, i think i made it too complicated. Back to Visual Studio. Results coming soon! Promise Im going to attempt the corrections-on-the-fly idea. I tried compiling some stuff in the car tonight, but as soon as i went WOT, the program threw an exception Kinda hard to debug doing 60mph.

 

Are you using any kind of averaging of the wideband?

I find it interesting that you are only using this at high throttle conditions. The few times I've used auto-tune in standalones, it was only for low throttle conditions and then it was disabled at say 120kPa or over a certain throttle position.

 

The LC-1 can do 1/12 second averaging. I have it on instant response currently. I did another test run this morning and i commented out all the complicated weight code. Its a simple

if (actual afr > target afr)
Add Fuel
else
Subtract fuel

It works, but i had to do 15+ pulls to start seeing a change in the afr. It went from a low 10 to a high 10. Almost at my target of 11.3. Its hard to find a road to do tons of pulls on with out traffic and cops

Im going to do some more work after turkey dinner (gobble gobble!). I have a few more ideas.

Happy thanksgiving!

 

Just finished up the code for the next build. It should produce better results. Im going to hang out with the kids in the morning and then ill try the next version out in the afternoon.

 

Do you have a way to adjust for a delay in AFR readings?

Example: It uses the current AFR reading to adjust the map cells that were used 3 readings ago.

It could get even more complex based on RPM, so that at 2500RPM it used a certain delay, then at 5000RPM, it used one that was about half that.

I'm not even sure if the delay is enough to be significant.

 

Any update on this?

-Acree

 

+ 1

 

+2! Very interested in this once dma gets sorted out for 8859X715.

 

I ported it months ago for 8859, but no one wanted to test it out. Maybe it doesn't work anyway. I think I'm done trying now, though.

 

I guess I can test it out. Would take me some time to figure it out as I have no clue how to use dma, or set up the livemap app.

 

Did the source for this ever get released?

 

nope not that i heard of. as i was wanting to copy it into my program last he was still trying to fix some bugs then he just disapear

 

Fair enough. Hopefully he'll pop back up at sometime so I can re-use some of his code for an upcoming side project

 

lol yeah. u could try and disassemble the code.... apprently fairly easy.

i have been looking at my own code and just cant bring myself to do anymore. i look at the code and go wow its a mess