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tao13
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« Reply #300 on: December 19, 2022, 09:04:13 AM »
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Yes, dsg converted to a manual car.
I tried 032hf too, and it make the same , i think is not from what kind of file i use, it is something from 5120hack or dsg not like something when change gears with accel pedal less than 60-70% between 4000-5000 rpm. The dsg is a petrol one so must work ok on 1.8t. I changed the rpm shifts points too but the same problem.
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Nitefly
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« Reply #301 on: January 21, 2023, 01:36:41 PM »
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Hey all
I have a question (maybe noob?) regarding DSG tuning.
Right now i am running a mk5 Golf GTI edition 30 with ~ 300 hp.
Power output is nice. My load curve is higher compared to the Audi S3 which has stock from factory 350 Nm. In my PolarFIS display it shows me fullload sweaps max. 350Nm. The labels in my ECU for horsepower and torque output to „kombiausgabe“ are of course raised.
Raising the load to higher than the Audi S3 (which has 350Nm), is the calculated and reported torque from the ECU to the TCU so accurate that my DSG (stock, nothing tuned) already stops me to not going higher than the 350Nm, or is the torque output value just bullshit?
KFMIRL and KFMIOP are linear.
Thx in advance
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prj
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« Reply #302 on: January 22, 2023, 05:25:20 AM »
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Torque = (miist_w - mdverl_w)*MDNORM
miist_w has a maximum value of 100%.
If your MDNORM is 350, then you can never go over 350 even if mdverl was 0%.
In case of DSG KFMIRL and KFMIOP don't have to be just linear, KFMIRL actually has to have correct miist_w (inner torque) filled for every operating point.
Can be done on dyno, preferrably an engine dyno, but normal one works too if you record mdverl_w at same time.
And if you are capping out MDNORM, then you need to increase it, but that means rescaling the whole map.
Now, if you increase it a little, you won't have a lot of problems, but if you increase it a lot (and rescale IRL/IOP of course), then all your idle control, DASHPOT, ARMD and LSD is gonna go to shit. Have fun calibrating that.
If your KFMIRL is linear as you say (and looks like a line, not a curve), then you have no problem yet.
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Nitefly
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« Reply #303 on: January 22, 2023, 11:02:51 AM »
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Thx Prj for your answer.
Well MDNORM is the stock value as in the stock Audi S3 dataset which is set 500 Nm.
Thx for that calculated formula for torque.
How can i know or get the information if i am torque limited by the dsg right now or not?
log miist_w and mdverl_w and calculate torque?
Best way would just be to fix my dsg so i dont have think about torque limitation…i guess.
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fknbrkn
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mk4 1.8T AUM
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« Reply #304 on: January 22, 2023, 11:10:12 AM »
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Read fr and log migs/miges
Ser limit in dsg to 450nm
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« Last Edit: February 08, 2023, 02:52:58 PM by fknbrkn »
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prj
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« Reply #305 on: January 22, 2023, 11:59:46 AM »
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Uhmm if you have not modifed the DSG then of course there's a torque limiter in it and that torque limiter needs to be increased.
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timk
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« Reply #306 on: February 13, 2023, 04:27:12 AM »
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I've been datalogging my E10 DQ250 using VCDS and one of the channels is "Transmission Limitation" which seems to sit at 615 Nm except for dipping during changing gears. The TCU is completely standard as far as can tell. Should I assume this is fake news and it actually does have a lower limitation set?
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prj
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« Reply #307 on: February 13, 2023, 05:04:12 AM »
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I've been datalogging my E10 DQ250 using VCDS and one of the channels is "Transmission Limitation" which seems to sit at 615 Nm except for dipping during changing gears. The TCU is completely standard as far as can tell. Should I assume this is fake news and it actually does have a lower limitation set?
Are you even hitting the 350/380 nm limit? All of these transmissions are limited without exception. |
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timk
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« Reply #308 on: February 16, 2023, 08:15:35 PM »
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Thanks for confirming, and yes I am hitting the 350 Nm limiter. I'm trying to get my head around how all the limiters come together but haven't made any changes as yet.
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ktm733
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« Reply #309 on: February 22, 2023, 01:06:55 PM »
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You report the correct torque.
And you learn the difference between indicated torque. Inner torque, friction torque and clutch torque.
I've seen some of your old posts about indicated torque. You stated move it out of the way... Maxing it out ff. Doesn't the dsg use indicated torque for proper clutch torque and shifting? Or is it only using reported engine torque? |
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prj
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« Reply #310 on: February 23, 2023, 02:25:32 AM »
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I've seen some of your old posts about indicated torque. You stated move it out of the way... Maxing it out ff. Doesn't the dsg use indicated torque for proper clutch torque and shifting? Or is it only using reported engine torque?
Obviously this does not apply to DSG. On a manual gearbox it does not matter. No 1.8T/2.7TT/4.2TT ever came with a DSG from the factory. |
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marchewa
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« Reply #311 on: March 24, 2023, 01:33:01 AM »
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Problem: Launch control too early shift (gear 1 to 2).
Every 1>2 shift when I use LC is too early. I've noticed in the past that it occurs when cluctch slips but I have incrased pressure and and gearbox still shifts at 6000rpm instead of 7000rpm which I set in the tcu software.
I have similar problems in Fxx and MQB boxes. Power range- about 400-450HP and 550Nm
vehical log with rpm and pressures attached
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igra4a666
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« Reply #312 on: May 26, 2023, 01:16:33 AM »
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Problem: Launch control too early shift (gear 1 to 2).
Every 1>2 shift when I use LC is too early. I've noticed in the past that it occurs when cluctch slips but I have incrased pressure and and gearbox still shifts at 6000rpm instead of 7000rpm which I set in the tcu software.
I have similar problems in Fxx and MQB boxes. Power range- about 400-450HP and 550Nm
vehical log with rpm and pressures attached
Any solution?On 350-60hp is the same,the problem have with LC from 3500rpm+ |
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vwmaniac
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« Reply #313 on: July 07, 2023, 12:46:08 PM »
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so for those that have dsg that did not come with lc standard use KusLauchNAbMax_ko , i changed the -1000 value to 10 as in the factory lc software. i also changed temp for lc and allowed with esp on to test and it works. dont forget to adjust lc rpm maps as they can sometimes not be setup in non lc software
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MirXas
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« Reply #314 on: July 09, 2023, 03:56:50 AM »
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Could anyone point me to an address, that would disable LC ? Not enable, but but disable. Brake pressure requirement, engine temp or any other map that would eventually disable LC in this Cxx file  Thanks. |
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