[rusEfi] 2006 Volkswagen Passat 2.0 Turbo GDI test mule #64

[AndreyB]

(see https://rusefi.com/forum/viewtopic.php?p=47469#p47469)

rusEFi non-DSG VAG TCU status:

* TP 2.0 is a great tool allowing me to quickly see if TCU is still happy or no longer happy about CAN traffic https://github.com/rusefi/rusefi/blob/83ce7a3143772d4f227d9d280b87383c38910011/firmware/controllers/lua/examples/vw-tp-tcu.txt
* based on above I can produce messages which are at least not throwing TCU error code https://github.com/rusefi/rusefi/blob/2c999b9744c7fc97bb3a8d2beb28683456cb510e/firmware/config/engines/vw_b6.lua
* with all above my extremely naïve torque approximation is not good to just engage reverse on a parked idling vehicle: I get a nasty hit when I engage R

open question how many hits would this transmission survive and open question how much time I can sink into this. After all TCU control is (not) yet a priority, all I need is to smoothly drive around the block. With nasty hits engaging R I am getting close to just selling this test mule and getting a manual GDI something Will maybe sink another four hours into it and then give up.

[AndreyB]

If you are just joining let me recap

PCAN OEM traces https://github.com/rusefi/rusefi_documentation/tree/master/OEM-Docs/VAG/2006-Passat-B6
DBC with my translations of many MOTOR_* packets https://github.com/rusefi/opendbc/blob/rusefi_prod/vw_golf_mk4.dbc

https://www.efianalytics.com/MegaLogViewer/ Megalog viewer logs generated from the above files https://github.com/rusefi/can-log-tools/tree/main/output

I need to make progress or else/

Have I never mentioned that video from a year ago? Need help understanding what exactly do I see on the video

Also a screenshot of back-and-forth log on stock ECU - see https://rusefi.com/temp/vag.zip that's my tool converting OEM powertrain traffic into MLV using above mentioned DBC file

[AndreyB]

Another TCU day in paradise

https://github.com/rusefi/rusefi_documentation/commit/a6589e791f96d35c584a75de7ede78906d12608c

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[mi-hol]

sounds like a major breakthrough is potentially just around the corner

[AndreyB]

KINGBOLEN Ediag plus is pretty sweet.

There is still an issue in the ignition on/off sequence but for actual TCU operation it's happy with just RPM, PPS and very fake torque. There is a slip visible on the video so next step is reducing the slip by providing less fake torque number.

[AndreyB]

Status: skipping on 2-3 shift

Note TCU is confused about shift activity duration, note lack of speed from instrument cluster

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[NormanAlphaspeed]

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We can see that Shift Activity is not ending correctly, which makes me think that since the transmission thinks it's still shifting, the 2-3 shift slips since the transmission is confused. There might be a _something_ that the Engine Control Unit says to the TCU to indicate that the shift was successful? Also the "Torque Converter Loss" is absolutely unhappy on RusEFI, is this data from TCU to ECU? How is that calculated?

[AndreyB]

Scrapped.

https://rusefi.com/online/view.php?msq=1676