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Author Topic: MED 9.1 basics  (Read 317889 times)
dream3R
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« Reply #285 on: October 30, 2015, 03:36:06 PM »

Could of fried it with high EGT's I guess.

What conclusions are you drawing here? 

Have you seen this?

https://www.rbracing-rsr.com/downloads/wiring_pdfs/bosch_lsu49.pdf

edit:  EGT's will come down with fuel and load reduced?

« Last Edit: October 30, 2015, 03:38:02 PM by dream3R » Logged



How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
Nottingham
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« Reply #286 on: October 30, 2015, 03:39:14 PM »

It´s rated for <930°C sustained and 1030°C peak, so I doubt <800°C (post turbine) will damage it.
« Last Edit: October 30, 2015, 03:44:36 PM by Nottingham » Logged
dream3R
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« Reply #287 on: October 30, 2015, 03:41:01 PM »

I wrote that then though of my second paragraph..

You'll be adding fuel, timing, etc, if ATR kicks in it will dump fuel to lamlim

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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
Nottingham
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« Reply #288 on: October 30, 2015, 03:44:12 PM »

B_atrf = 0 whole time.
Meanwhile B_brlmx is always 1.

 Huh
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dream3R
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« Reply #289 on: October 30, 2015, 04:00:35 PM »

quick look @ FR for VAG MED9 it's the tans error path?
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
dream3R
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« Reply #290 on: October 30, 2015, 04:13:02 PM »

ATR imho buddy.
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
Nottingham
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« Reply #291 on: October 31, 2015, 09:00:26 AM »

Has anyone logged taikr_w on their TFSI?
I would love to have a comparison against other setup.

My taikr_w reads almost exactly the same as KFATMKRH indicates.
I would have assumed the ECU would base it´s calculations on the temperature info from the front lambda, but I don´t think thats the case in reality.
To me it seems like it is applying reduction factors over the table values from "ATM", based on mixture, load and ignition.
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dream3R
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« Reply #292 on: October 31, 2015, 12:20:01 PM »

Has anyone logged taikr_w on their TFSI?
I would love to have a comparison against other setup.

My taikr_w reads almost exactly the same as KFATMKRH indicates.
I would have assumed the ECU would base it´s calculations on the temperature info from the front lambda, but I don´t think thats the case in reality.
To me it seems like it is applying reduction factors over the table values from "ATM", based on mixture, load and ignition.


It's one change to fine out matey.
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
Nottingham
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« Reply #293 on: November 05, 2015, 12:31:41 AM »

Found out the issue which caused the rlmax_w being scaled down.
It was something extremely simple, but still something extremely hard to find.
I had to look all of my modified maps through for several times and still only found the issue by an accident Roll Eyes

Every map which can modify rlmax_w and uses fak_uw_b1 (1.52587890625e-5) or fak_uw_b2 (3.0517578125e-5) is affected.
The issue gets amplified if you have multiple corrections (pull-back & IAT) active and you have altered the default values, like I have.
If you disable the corrections at a given point by setting the value to 1.000000 the actual value the ECU will see will be different due WinOls.
fak_uw_b2 for example will be rounded from 0.000030517578125 to 0.000031 automatically. This means that for every correction which gets activated, your actual load will yield 0.9844 correction instead of 1.0.
Setting each cell to be modified to 1.000000 will result in 0.9844 correction, whereas setting them to 1.015808 results in 1.0000 correction.
« Last Edit: November 05, 2015, 12:33:50 AM by Nottingham » Logged
ddillenger
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« Reply #294 on: November 05, 2015, 12:51:48 AM »

Check your factors.

0.000031!=0.0000305176.
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Nottingham
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« Reply #295 on: November 05, 2015, 01:06:10 AM »

Check your factors.

0.000031!=0.0000305176.

Yeah.

1 / 65536 = 0.0000152587890625 (fak_uw_b1)
2 / 65536 = 0.000030517578125 (fak_uw_b2)

In WinOls (factor set to 0.000031 and precision to 6) 1.000029 yields 0x7E03 in hex.
32259 * 0.000030517578125 = 0.984466552734375
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nyet
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« Reply #296 on: November 05, 2015, 08:13:34 AM »

Yeah.

1 / 65536 = 0.0000152587890625 (fak_uw_b1)
2 / 65536 = 0.000030517578125 (fak_uw_b2)

In WinOls (factor set to 0.000031 and precision to 6) 1.000029 yields 0x7E03 in hex.
32259 * 0.000030517578125 = 0.984466552734375

Winols blows ass here. Use 0.0030517 etc and it won't round as badly.
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Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
gman86
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« Reply #297 on: November 24, 2015, 10:45:06 AM »

Hi all,

I logged the input and output of KFMIRL and can confirm that the input is being capped (and so the output is correspondingly capped as well). It took quite a while to find the right things to log - I don't know what it's like on ME7, but on MED9 I found that KFMIRL is re-used in the assembly code for several different modes of operation (homogeneous, homogeneous-lean, homogeneous split, stratified injection, catalytic converter heating) and each mode has it's own variables for input and output that it uses to call KFMIRL with.

Anyway, it's homogeneous mode.

By luck more than anything, I managed to get a log that contains a WOT pull without the problem and another WOT pull with the problem. Both in the same trip down the road, just a couple of minutes apart. I honestly can't see what's different Huh

Here you go. mifa_w, rlmax_w and rlmx_w are fine, but pssol_w suffers from correction on the second pull.

First pull - no correction





Second pull - pssol_w being limited








How does one log the variables in MED9? I thought they were just for ME7Logger?
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Nottingham
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« Reply #298 on: November 24, 2015, 11:09:14 AM »

You need to find the RAM variables and create new measuring blocks for them.
Afterwards you can read the with VCDS for example.

http://nefariousmotorsports.com/forum/index.php?topic=5941.0title=
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Nottingham
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« Reply #299 on: December 02, 2015, 04:50:50 AM »

Is KFPLGUB supposed to have boost values, which the turbo is able to reach with 0% waste gate duty?
That appears to be the case, but I cannot see how KFDPLGU map correlates with it.

Need to log fho_w and pssol_w, but am I even on the right tracks?

The actuators on K03-105 & K04-064 turbos starts to move at the same pressure (300mbar), however K03-105 requires less pressure to open fully and generally has higher "lift" than K04-064.

K03-105 & K04-064 actuator specs in case someone needs them:

K03-105:

Minimum pressure: 300mbar (starts to move)
Maximum pressure rating: 700mbar
Maximum travel: 10mm
Calibration settings: 345 - 355mbar = 4.1 - 4.3mm travel

K04-064

Minimum pressure: 300mbar (starts to move)
Maximum pressure rating: 800mbar
Maximum travel: 13mm
Calibration settings: 495 - 505mbar = 4 - 4.25mm travel

The travel is measured from the wastegate flap arm mechanism, not from the actuator rod itself.



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