I hadn't noticed that the latest MSnS-E allows for AutoTune while in open loop. Previously there would have to be special things done (not simply turning a flag on) to get it to work when in open loop.
I hadn't noticed that the latest MSnS-E allows for AutoTune while in open loop. Previously there would have to be special things done (not simply turning a flag on) to get it to work when in open loop.
I'm with you Jeff. To my knowledge, it doesn't do any "autotune function" while in open loop because the autotune corrector needs EGO correction to be effective.
When you are running target AFR, you can run closed loop 100% of the time. Combine that with the autotune features and you can tune the entire ve table with autotune (within reason and skill of the user). Remember, autotune just works of the EGO correction percentage and the targetAFR is constantly alterting that.
Basically, if you want to use autotune for the entire VE table, build your corresponding TargetAFR table and set it to stay in closed loop. Then setup your autotune variables and drive.
Keep tabs on everything. You don't want any overcorrecting going on.
There is a pretty good read in the megamanual regarding Autotune as well here:
It's too bad they don't build it in so you can do AutoTune in open loop as well. The changes required aren't much with MT as it sits to make it work in open loop. That'd save you from changing any of the other settings (EGO, then open loop menu).
Thaks for the MS gurus to claifry that up for me. I will clear that up in the original post.
The bright side of this for the standard setup if you don't want to take the chance using AutoTune in closed loop in higher boost levels is that you get all 8x8 for 35-100kpa'ish (or whatever your EGO and open loop thresholds are). But for my setups, I usually leave just about all of those around a 16.0 AFR so being that wide of a range doesn't really matter. I think you could even do it with just the bottom row if you set it at 100kpa then it'd use that row for every kpa below it.
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PARTING A LOT OF 2g STUFF
