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KFVAKL/KFBAKL, Idle and Throttle
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Topic: KFVAKL/KFBAKL, Idle and Throttle (Read 5258 times)
ricekikr
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KFVAKL/KFBAKL, Idle and Throttle
« on: November 17, 2015, 05:40:24 AM »
KFBAKL and KFVAKL
Are they constants or multipliers
KFVAKL - Larger numbers = more fuel not less right?
==========
IDLE:
Is there a map that dictates when the throttle starts controlling idle coming from higher rpms? My idle undershoots it's target when coming from higher Rpm (fx400 flywheel). I want the rpm to drop quickly from high rpm then drop slower around 1100rpm and settles at idle.
What does target speed to prevent boiling (NSKS / NFSTMUB / NFSKS) do?
Where is KFMRES/K categorized (ignition/idle/throttle etc)? I'm having difficulty finding a similar map for an ME5
=======
Throttle:
Is there a throttle size multiplier or do all the airflow maps need to be replaced?
Feedforward control = PID?
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aef
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Re: KFVAKL/KFBAKL, Idle and Throttle
« Reply #1 on: November 17, 2015, 06:08:08 AM »
Read this:
http://nefariousmotorsports.com/forum/index.php?topic=2438.0
http://nefariousmotorsports.com/forum/index.php?topic=5238.0
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nyet
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Re: KFVAKL/KFBAKL, Idle and Throttle
« Reply #2 on: November 17, 2015, 12:55:28 PM »
Quote from: ricekikr on November 17, 2015, 05:40:24 AM
Feedforward control = PID?
Feedforward (open loop) is the opposite of feedback (PID)
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ME7.1 tuning guide
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Please do not ask me for tunes. I'm here to help people make their own.
Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
ricekikr
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Re: KFVAKL/KFBAKL, Idle and Throttle
« Reply #3 on: November 17, 2015, 11:29:25 PM »
Forgot to mention I'm M592
Is KFMRES/K categorized as feedforward? I probably don't have a KFMRESK since I don't have a clutch switch.
I found a throttle map that could be similar
Category: LLRV : A284 . 0 idle control : air feedforward (LLRV: A284. 0 Leerlaufregelung: Luftvorsteuerung)
Map ID: DQSAN Air feedforward thrust Reserve dep. of speed (Luftvorsteuerung Schubreserve abh. von Drehzahl)
Map size: 8 (rpm) x 1 (kg/h)
Map values are all zero though
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dream
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Re: KFVAKL/KFBAKL, Idle and Throttle
« Reply #4 on: December 15, 2015, 07:38:51 AM »
I got the same issue and I am working on it to get it fixed but couldn't fix it with KFMRES so far also tried to adjust fueling at that point which turned out to be a little better.
My setup is way different from stock and the only issue that remains is that if it reaches 90 degrees I decelerate and declutch between 1250-2000rpm the engine stall most of the time. Sometimes it does lacks at +/- 600rpm and raises up to normal again.
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ricekikr
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Re: KFVAKL/KFBAKL, Idle and Throttle
« Reply #5 on: December 16, 2015, 06:35:57 PM »
Forgot to update this. Fixed mine by upping accel enrich and timing a bit at <1000rpm. Couldn't find a similiar KFMRES/K map for the M592.
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