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audi TT G4X rev hang when shifting


oetoet

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hi guys,

question, while driving with this car to setup a base map, the revs rise about 200rpm every time you press the clutch to shift. all harmless, as they come down eventually, just annoying. 

can anybody spot the culprit? file and log attached.

tt anouk.pclx PC Datalog - 2023-05-2 5;49;02 pm.llgx

PC Datalog - 2023-05-2 5;49;02 pm.llgx tt anouk.pclx

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I would zero your dashpot offset (currently set to 1%).  When it's idling at the correct RPM it's only at 2.5% throttle at the end and the dashpot is adding 1% making it hang high.  Your AC active is adding .5% - is that actually required to keep it idling properly when the ac is engaged?  What happens if you put idle control in closed loop?

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4 minutes ago, koracing said:

I would zero your dashpot offset (currently set to 1%).  When it's idling at the correct RPM it's only at 2.5% throttle at the end and the dashpot is adding 1% making it hang high.  Your AC active is adding .5% - is that actually required to keep it idling properly when the ac is engaged?  What happens if you put idle control in closed loop?

thanks for the reply! its inbetween gear shifts, not at idle. closed loop idle was not dialed in enough so i put it on open to fine tune it, will close it later on.

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38 minutes ago, koracing said:

The dashpot is still too high, but it looks like the e-throttle isn't following your commanded position very quickly - you likely need more integral value on the E-throttle PID.

Okay, will try tomorrow, its 22:25 here. Thanks for your reply and time!

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