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Author Topic: DSG DQ500  (Read 31771 times)
kenneth26r
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« on: February 10, 2020, 05:22:46 AM »

Hello, i'm facing a problem with this dsg DQ500.

The gearbox is from an RS3 audi with the ST3A0L1000000 software. Gearbox is mounted, car is work but perfectly.

The problem I have is that when I shift up, the clutch slips .

With the Damos I have been able to adapt something like the times of changes, the changes with D and S, I have increased the torque limiters, but I can't make the clutch don't slip when I shift up.

Anyone of you have tried to work this gearbox and help me a little to solve the problem?

Looking for an hand  Smiley , thanks!
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jochen_145
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« Reply #1 on: February 10, 2020, 07:13:04 AM »

Sure, you communicate correct torque on CAN-bus ?

If yes, try to re-adapt torque-to-pressure by tech-In function and fast adapation drive
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kenneth26r
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« Reply #2 on: February 10, 2020, 07:43:15 AM »

Yes, I did what you said before.

The problem is that the dsg dq500 is installed in a car that has 600NM of torque and I need to reprogram and adapt the gearbox.

The modifications with the DAMOS have helped me tune it better, but I'm missing something so that the clutch doesn't slip
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jochen_145
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« Reply #3 on: February 10, 2020, 08:11:21 AM »

You really got problems only on PONUS during torque-handover ?

Clutch will not slip as long as it "knows" the correct troque at gearbox input and all nessessary maps are able to handle 600Nm.

So extent all maps and take care torque graditens during torquehandover are high enough to handle the complete torque while troque-handover times.
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kenneth26r
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« Reply #4 on: February 10, 2020, 08:28:14 AM »

It's probably that the torque gradients during the torque transfer are not correct... I was researching and I haven't found much information about this
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jochen_145
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« Reply #5 on: February 10, 2020, 08:45:40 AM »

Search for something like

Khs_DMKommendUeberMax_ko

KhsdMRampeSchnelleUe_ko[K1]
KhsdMRampeSchnelleUe_ko[K2]

But form my experiences hydraulic of DQ500 will limit the max gradient for torque, exspecially on K2.
So if you are at the limit of hydraulic, you need to longer troque-handover
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bk56190
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« Reply #6 on: February 11, 2020, 02:06:33 AM »

Yes, I did what you said before.

The problem is that the dsg dq500 is installed in a car that has 600NM of torque and I need to reprogram and adapt the gearbox.

The modifications with the DAMOS have helped me tune it better, but I'm missing something so that the clutch doesn't slip

Hello, with 600Nm and ori sw, clutches souldn't slip. Any logs of calculated torque ? If miscalculated, not enough clutch clamping force. Any logs of pressure on clutch ?
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IamwhoIam
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« Reply #7 on: February 11, 2020, 02:39:11 AM »

what car/engine is this gearbox bolted to?
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I have no logs because I have a boost gauge (makes things easier)
kenneth26r
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« Reply #8 on: February 11, 2020, 03:30:00 AM »

what car/engine is this gearbox bolted to?

In a turbo retrofit for the VW R32 MKV
Power:   445 hp / 327 kW
Torque:   580 Nm
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prj
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« Reply #9 on: February 11, 2020, 03:56:51 AM »

Your engine is tuned wrong, the reported torque is not correct, that is why you have problems.
Probably you are reporting 350-400 Nm when you actually have 580 Nm. Of course the gearbox will slip in this case.
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PM's will not be answered, so don't even try.
Log your car properly.
Khendal
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« Reply #10 on: February 11, 2020, 06:51:53 AM »

Your engine is tuned wrong, the reported torque is not correct, that is why you have problems.
Probably you are reporting 350-400 Nm when you actually have 580 Nm. Of course the gearbox will slip in this case.

i did not understand yet....which one is this map that reported torque to tcu...anyone of you can explain better? Huh
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IamwhoIam
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« Reply #11 on: February 11, 2020, 07:29:15 AM »

Your engine is tuned wrong, the reported torque is not correct, that is why you have problems.
Probably you are reporting 350-400 Nm when you actually have 580 Nm. Of course the gearbox will slip in this case.

Or it's configured for manual trans Smiley
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I have no logs because I have a boost gauge (makes things easier)
jochen_145
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« Reply #12 on: February 11, 2020, 07:36:09 AM »

Sorry ?!

You tould you are not bending troque on CAN, running 600Nm on flywheel and now you are asking, in with way troque in ECU is calculated / witch maps to extend ?

If you are running around 600Nm at flywheel, you need to be able to send more the 650Nm indicated on CAN.
For this MDNORM needs to be updated first.
Witch value you are running at MDNORM ?

After MDNORM is chance ALL %MDNORM baced maps need to be chanced to

Quote
Your engine is tuned wrong, the reported torque is not correct, that is why you have problems

I am quite prj is correct with his objection, without knowing your software

Quote
Or it's configured for manual trans
Doesn´t care, if you have problems only in torque-handover, as he told
 Huh
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prj
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« Reply #13 on: February 11, 2020, 08:08:31 AM »

Doesn´t care, if you have problems only in torque-handover, as he told
 Huh

It's important, if it's set for manual trans it will ignore torque intervention and it will try to shift at full torque...
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PM's will not be answered, so don't even try.
Log your car properly.
jochen_145
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« Reply #14 on: February 11, 2020, 10:42:19 AM »

It's important, if it's set for manual trans it will ignore torque intervention and it will try to shift at full torque...
yes, but this is a differnd point:
You are right, upshift will be unconfortable, if you don´t react on torque-interventions, but it is not a "must". DCT will "shoot" the clutch and synchronisation will be done by force. Unconfortable to workable and "fast" under full-throttle

During torque-handover there is not torque intervention.

So if kenneth26r has only problems during torque-handover, as he worte, it makes not difference if the ECU will not reakt to torque-interventions or not  Grin

But I think, are a "some" additional problems to fix Wink
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