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Author Topic: Reversing RKTI/FKKVS routine  (Read 4513 times)
Bische
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« on: March 13, 2013, 01:06:40 PM »

I have been observing some odd things when correcting FKKVS, shown in the attached graph/log. Looking at the diagram in the FR does not explain to me why tevfa_w/ftek_w acts like they do in my log.

RKTI:


Alfa FR RKTI:


I have looked for a while at the routine, but I cant find out why this happens. Has anyone seen this happen before?
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elRey
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« Reply #1 on: March 14, 2013, 10:36:55 AM »

Does the English match the German FR for these functions? There are difference between the two. And the German FR is more applicable to your car than the English FR.
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Bische
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« Reply #2 on: March 14, 2013, 12:32:58 PM »

I did solve this today, and as usual it was a real face palm error.

First thing I did was to define tevfa_w/ftek_w as 16bit in my logger definition -> showed sane values. Logged a bit and there was no correction over 2000rpm, which had me realize the axes in my FKKVS definition was swapped.

I defined the FKKVS after the TT damos, which is indeed axis swapped compared to the other damos' I have. I have stared at these routines for over 5hrs, all for nothing...
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