Rolling anti lag

General support questions and announcements for MS3. See also MS3 manuals.

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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

Last edited by 93supercoupe on Wed Oct 08, 2014 12:17 pm, edited 1 time in total.
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Re: Rolling anti lag

Post by racingmini_mtl »

Are you really advertising another ECU on the MS forum? Do you think that is helpful?

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Re: Rolling anti lag

Post by kjones6039 »

93supercoupe wrote:Just finished implementing and testing yet another ProEFI first.................................................... This will be in the V3 release along with other new features to be released shortly
I am confused..... If this feature is already available in another system, that you apparently prefer, why are we even discussing it here?

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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

racingmini_mtl wrote:Are you really advertising another ECU on the MS forum? Do you think that is helpful?

Jean

That is a copy and paste from another site.

Im not sure if my approach is wrong, or my wording, but i feel like im getting ALOT of resistance on a simple feature request that other systems already have. I am NOT advertising another EFI system, I am NOT a street racer, I made my point very clear, many times.

Im simply asking if we can make this feature happen in OUR system. Thats it. On page 1, people werent sure what i was asking for, so i qouted another source. thats it. I dont even know who or what Pro-EFI is.
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Re: Rolling anti lag

Post by nathaninwa »

Well your cut and paste sounded like you talking and no reference to Larry at sound performance was made

Pushing the feature won't implement it faster. Casual bump the thread with ideas rather than demanding an awnser
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Matt Cramer
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Re: Rolling anti lag

Post by Matt Cramer »

The most important thing here to make this happen is an explanation of how it would differ from the existing anti-lag code.
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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

Ok,

Im thinking theres a way to make this work with what we have already.

But the problem that i see when i look at the ALS settings is that they all require a defined RPM or vehicle speed.

So your at 4000RPM, you hit the activation button, and the ECU will limit it to 4000RPM. So now you can put the pedal to the floor and build boost. Release the button, and the ECU will now let it rev out, with boost already built.

But now your traveling at 5200RPM and you wanna do the same thing. Just hit the button and the ECU limits you to 5200RPM, you can floor the throttle, build boost so when you relaese the botton, the ecu lets it rev out with boost already built.

The youtube video defines it pretty well. Its not an advertisemnt, just an example. I have never used/bought or considered what ever management system is in the video.

Basically its ALS as it is now, but the moment the activation switch is used, it takes the current RPM as its setting.
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Re: Rolling anti lag

Post by Matt Cramer »

Sort of like the "Variable Launch" option, but for anti lag?
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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

Matt Cramer wrote:Sort of like the "Variable Launch" option, but for anti lag?
I guess i dont know the operation of variable launch well enough,and im having a hard time finding threads with application or really any documentation at all but if im thinking about it right, then you would need to have an activating switch, then a 0-5v potentiometer to determine the RPM you want it to hold at.

So in a sense that would work, but if we just implemented a switch that captures current RPM as its limiting RPM, it would be much easier.

hit the button, and whatever rpm you are at is now your limiter until you release the button.
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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

and you wouldnt really need to implement any ALS settings (unless you have a massive turbo) because just being able to hold a certain RPM and having the pedal to the floor would create boost. I think.

But being able to implement the ALS settings with this would only help i suppose
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Re: Rolling anti lag

Post by Matt Cramer »

Variable launch simply sets the hold RPM at whatever RPM the launch switch is engaged at.
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Re: Rolling anti lag

Post by jsmcortina »

Current variable launch in MS3 uses a potentiometer to set the limit. It works well.

I have a vague recollection that MS1 might have had a feature similar to what is discussed here where the limit RPM was grabbed from the current RPM when the switch was activated. I'll consider that for a future release.

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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

Matt Cramer wrote:Variable launch simply sets the hold RPM at whatever RPM the launch switch is engaged at.

So you would set the window of RPM (3000-6000RPM) and what ever RPM you engage the launch switch at in between those 2 RPM's is what its held at?

Where does the 0-5v potentiameter come into play?
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Re: Rolling anti lag

Post by nathaninwa »

You set up the variable launch specifying the rpm window, then on the knob you have you just find different points where each 500 or 1000 rpm difference is. In the application your wanting youd have to turn the knob to the current rpm and potentially setup a button that acts like the clutch switch

James, this is a feature I and a friend with a 1jz could use for some roll race events we attend
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Re: Rolling anti lag

Post by Matt Cramer »

Sorry, had the MS3 and MS1 variable launch implementations confused.
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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

nathaninwa wrote:You set up the variable launch specifying the rpm window, then on the knob you have you just find different points where each 500 or 1000 rpm difference is. In the application your wanting youd have to turn the knob to the current rpm and potentially setup a button that acts like the clutch switch

James, this is a feature I and a friend with a 1jz could use for some roll race events we attend
This is how i envisioned it working. Which is fine, but requires an extra step and course adjustment.
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93supercoupe
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Re: Rolling anti lag

Post by 93supercoupe »

jsmcortina wrote:Current variable launch in MS3 uses a potentiometer to set the limit. It works well.

I have a vague recollection that MS1 might have had a feature similar to what is discussed here where the limit RPM was grabbed from the current RPM when the switch was activated. I'll consider that for a future release.

James

Boom. Thats all im asking for. Thanks James
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Re: Rolling anti lag

Post by Suprazz »

Hi James, any updates on this?

I also like to idea of the launch control that engage at the rpm value when a button was pressed.
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Re: Rolling anti lag

Post by nathaninwa »

Check out 1.4.9, it's been out since .7 or .8 under pit lane limiter, try that and see if it works for you
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Re: Rolling anti lag

Post by Suprazz »

Great! It should do it! Thanks
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