NefMoto

Technical => Tuning => Topic started by: nyet on March 31, 2013, 10:35:29 PM



Title: KFKHFM downscale + KFLF upscale issues
Post by: nyet on March 31, 2013, 10:35:29 PM
original thread regarding avoiding ps_w limit:

http://nefariousmotorsports.com/forum/index.php?topic=2747.0

Hit some strange issues on a car. No clue why.

Here is a log of a whole bunch of different revisions of the same file, all using different KFKHFM scalings at the top of the range.

Note the area where ps_w, rl_w, and rl all get locked to the same value.

anybody have any ideas?

(http://nyet.org/cars/images/ps_w-workaround.png)


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: nyet on March 31, 2013, 10:48:49 PM
I'm guessing the problem lies here somewhere...

(http://nyet.org/cars/images/bgmszs-dabgl.png)


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: nyet on March 31, 2013, 11:19:02 PM
My current guess is that DSLOFS=0 is bad, because there are cases where pvdksf_w can actually hit PVDKMX.. and set B_edsl

I still can't make head or tail out of E_lm or E_dk from the FR though... but i don't think they are set because RLNOT is very very low.

which means i need to log

B_neglgrd
E_lkvdk
B_mxrlroh
B_mszsdkb
rlflmroh_w
rldkofk_w
rlfdkroh_w

to see what is interfering with rlfgroh_w


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: ddillenger on March 31, 2013, 11:21:36 PM
I have nothing to contribute (other than I thought the 5120 was supposed to make this method obsolete?), but I'm posting anyway so you don't have to talk to yourself. Carry on, I'm with you.

(lol)


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: Bische on April 01, 2013, 03:49:18 AM
That looks strange, have you verified axes isnt swapped on KFKHFM?

If I were you I would just return those to stock and scale down KISRM by the amount needed and KFURL/KFPRG up by the same amount, sane MAF readings, sane load and no 2map transition to calibrate :)

Just came to mind, you might be triggering b_neglgrd when scaling down ps_w that way?


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: prj on April 01, 2013, 07:01:51 AM
CWBGMSZS -> 0


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: nyet on April 01, 2013, 09:56:26 AM
CWBGMSZS -> 0

Looks like that inhibits B_neglgrd?

Thanks for the hint, I will try it out (and hopefully analyze the FR so I understand what it is doing).

From looking at bgmszs-neg.lgrd, wouldn't it make more sense to tweak PSSOLNGRD (and/or log grdpssol_w)?

Or is that just to test if B_neglgrd is being set w/o logging it?

I'm not sure this is it; plsol and pssol are not moving around fast enough to generate a big enough grdpssol_w in that region, unless I'm missing something

(http://nyet.org/cars/images/neg-lgrd.png)


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: bbernd on April 12, 2013, 03:40:10 AM
it also inhibits whole b_inisabgl


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: nyet on April 12, 2013, 10:33:47 PM
Ah. I see. Looks like I have a lot more reading to do. I'd rather not just zero that w/o knowing what it is doing.

Thanks...

0x10D69 looks like, for future reference.


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: nyet on April 20, 2013, 05:01:30 PM
Looks like bit 1 of CWBGMSZS (the only one set in mbox) enables/disables B_fkmsdks, but not E_lkvdk/B_inilabgl

(http://nyet.org/cars/images/CWBGMSZS-bit-1.png)


Title: Re: KFKHFM downscale + KFLF upscale issues
Post by: nyet on July 23, 2013, 11:46:29 AM
I think i'm overthinking things.

Most likely a KFMLDMX -> B_ehfm -> B_hfm issue.

Will recalibrate KFMLDMX more carefully next time i see this.