NefMoto

Technical => Diagnostics => Topic started by: SB_GLI on November 04, 2016, 06:08:14 AM



Title: Help me find the source of torque intervention
Post by: SB_GLI on November 04, 2016, 06:08:14 AM
I've been trying to track down this issue for a while now, and I finally got the time to add torque variables to my ecu file.

Attached logs are logs of a 3rd gear WOT pull and shortly after a part throttle 5th gear pull.

I can see timing intervention when mibas > mizsol

What would be the cause of this?


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 04, 2016, 06:11:01 AM
Can't upload this image to nef for some reason... here's a link

https://drive.google.com/open?id=0B79F_wLN2HaIdmMwUGkzeTNFYzQ


Title: Re: Help me find the source of torque intervention
Post by: vwaudiguy on November 04, 2016, 08:48:34 AM
What would be the cause of this?

I'm no expert, but I'm going to say the tune.

 ;D


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 04, 2016, 09:18:54 AM
I'm no expert, but I'm going to say the tune.

 ;D

But I have a 4 bar FPR.  ;P

It looks like there's something going on with dmar_w, though I can't make out what the logged values actually mean.. but there's certainly activity there.   I will work backwards through the DMAR function and log more variables related to that function to get to the bottom of this.


Title: Re: Help me find the source of torque intervention
Post by: vwaudiguy on November 04, 2016, 09:28:29 AM
But I have a 4 bar FPR.  ;P

Yes!

I'll take a look later in the day if I get a moment.


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 04, 2016, 09:34:43 AM
Okay, I lied about the 4 bar, lest anyone thinks that might be related to my problem.  :)


Title: Re: Help me find the source of torque intervention
Post by: nyet on November 04, 2016, 11:19:21 AM
http://s4wiki.com/wiki/Tuning#Anti_judder
http://nefariousmotorsports.com/forum/index.php?topic=1905.msg18422#msg18422


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 04, 2016, 03:17:40 PM
FF'd TMAR and intervention is gone.   I'll have to mess with the rest of ARMD later.  I'm just going to enjoy this little victory for now.


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 05, 2016, 08:53:33 AM
yay me.   ;D


Title: Re: Help me find the source of torque intervention
Post by: vwaudiguy on November 05, 2016, 12:25:52 PM
Is this from "messing with ARMD" or your little cheat. :)


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 05, 2016, 01:32:54 PM
still the cheat.  After a while driving it, I am trying to find a reason why I would want it back on.  part throttle and putting around seem smoother overall as well.


Title: Re: Help me find the source of torque intervention
Post by: nyet on November 05, 2016, 01:39:47 PM
part throttle and putting around seem smoother overall as well.

I doubt it. I'd stick to only disabling it in first and for high torque request


Title: Re: Help me find the source of torque intervention
Post by: nubcake on November 05, 2016, 03:51:04 PM
If you find that ARMD intervention is gone after FF'ing TMAR - do the next logical thing: revert it to stock, but FF the last row (column?) of KFDMDARO - to disable ARMD under WOT only. The effect should persist. :)


Title: Re: Help me find the source of torque intervention
Post by: nyet on November 05, 2016, 04:00:44 PM
summary of my approach

http://nefariousmotorsports.com/forum/index.php?topic=1905.msg18422#msg18422


Title: Re: Help me find the source of torque intervention
Post by: SB_GLI on November 06, 2016, 08:57:12 AM
I set TMAR back to original and modified the last row of KFDMDARO x4.  Also set KFDMDADP the same since the data in this table was similar (maybe I shouldn't have done this).

Didn't work.  Intervention is back. 

Seems I will have to tinker with this more to figure it out.  :-\