antilag and anti-lag

[rusefillc]

users are asking for antilag logic in rusEFI

[mmatousek89]

overview:
when driver demand via PPS is below some threshold
open ETC to 10-40%
retard ignition to 5-30deg ATDC
add 2-20% fuel

hints:
antilag should run engine in neutral gear around 3500rpm
antilag should not add too much torque to crankshaft between 3500-15000rpm driver expect neutral engine behaviour, engine braking is highly desired but hard to obtain

closed loop ideas:
watch turbospeed - open/close ETC to reduce or add turbospeed

conditions:
intake air temperature below 55degC
EGT below 975degC
coolant below 105degC
ALSactive no more than 5000ms in one continous activation
pedal position sensor over 90% at least once in actual driving cycle
als arming switch activated
pedal position sensor below 1%

[idi-moe]

Another thing to note is that rolling antilag would be useful in drag-racing scenarios. The necessary addition would be to maintain via closed-loop control a set RPM (with gear sensing?) or vehicle speed. A possible approach would be to use a modified rev-limiter function I think.

[elmepro]

Im ready to test antilag if needed, for this season i have (test turbo engine) for drifting

[rusefillc]

Thank you for your interest in rusEFI!

At the moment we do not have resources to figure out the roadmap towards anti lag feature. https://patreon.com/rusefi is one of the ways to help rusEFI!

[TurboMarian]

hi iam from argentina i work in a rally team i am a tuner Any information you need about the anti lag system. I can provide it. we work with MoTeC m800, evo IX and X MoTeC m130. and m142 direct injection THP engine I would like to see the addition of the anti lag system in rusefi i am currently using speeduino with my own anti lag system I don't know how to modify the rusefi code. but I would like to learn to be able to help

I'm working on ALS for rusEFI. I just started and I only work in my spare time so I don't know how long it will be before it's ready.

[TurboMarian]

I also wrote a simple LUA script for ALS. In the video, it was tested on Idle Valve, so not enough air, but as you can see it works.

rusEFI_ALS_LUA.mp4

[rusefillc]

@TurboMarian let me know if I can help with any code questions

Do you want to start PRing small pieces maybe the configuration part of the change?

[rusefillc]

@TurboMarian is your work available anywhere on github?

@Fera31 @idi-moe @elmepro see below does it look like minimal set of settings?

Who has what test mule? Please see the issue from my standpoint: I have very little feedback from end users, I do not know who has what successful install available for what testing. A lot of amazing progress could happen if we find a way to start helping each other :)

[TurboMarian]

@rusefillc ALS code is almost done. All the functions are working apart of "ETB AIR ADD" but I will work on it this weekend.

Should I post it on my github and send you a link or make pull request?
It will be nice if that can be part of rusEFI code.

[rusefillc]

Yes would be amazing if you could push to your github and maybe allow me to start picking pieces?

[TurboMarian]

Sure. I will update ETB air add code soon.

https://github.com/TurboMarian/rusefi

[rusefillc]

@TurboMarian what is your forum username? can you please DM me your whatsapp or something? I think we should have a screen sharing session on how to approach the merge

[rusefillc]

@TurboMarian please blink if Santa is distracting you 🎅

[TurboMarian]

Hi @rusefillc . My username on the forum is TBM. I updated my github already. I hope is much better now. Thank you for adding part of ALS code to rusEFI😁

[rusefillc]

@TurboMarian just emailed about a rebase to make my job easier. My preferred GIT client is what build into java IDE "jetbrains IDEA" it makes complex git operations really easy, please let me know if we can screen share for me to show you.

PS: https://rusefi.com/forum/memberlist.php?mode=viewprofile&u=1539

[rusefillc]

@TurboMarian please review my picks into master, see also https://rusefi.com/forum/viewtopic.php?p=46858#p46858

@Fera31 @idi-moe @elmepro do you guys use idle solenoid or ETB?

[rusefillc]

@Fera31 where are you located? can you get rusEFI hardware? Can you DM me on rusEFI forum or rusEFI facebook?

I would love to help you get your code into rusEFI master!

[TurboMarian]

@Fera31 Hello! We have almost all the ALS features from your post alrady implemented in rusEFI code.

How to compile rusEFI firmware: https://rusefi.com/forum/viewtopic.php?f=5&t=9

If you have any questions please send me private message. I'd be more than willing to assist.

[mi-hol]

compile the code. I should get a controller too

@Fera31 did it work?