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Author Topic: RS3 Style Soft Launch Control  (Read 1033 times)
armaan
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« on: July 21, 2020, 09:32:26 AM »

Hi everyone,
I am back with yet another Noob question. (Sorry  Cheesy)

Is there anyway to make our soft launch control sound like this:
https://www.youtube.com/watch?v=FMOPWKDnxDg

I have set my DNMAXH to 20 (and KFNWEGM to ~3500rpm) and it seems to sound like that for a split second, and then back to the boring old soft launch sound.

I am wondering does anyone have experience with setting DNMAXH to 0 with Soft Launch control, and does it sound like the RS3 above?
Or perhaps I could set KFNWEGM and DNMAXH such that it makes a sound like that.

Or if theres some other maps that I could look at? Any direction or help would be great  Grin
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bamofo
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« Reply #1 on: July 25, 2020, 04:39:09 PM »

Need to post the rom. Post the ecuid or something. I can give you it for the b6s4 if you want lol. Rom would help stock version of it.
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armaan
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« Reply #2 on: August 01, 2020, 07:39:01 AM »

Need to post the rom. Post the ecuid or something. I can give you it for the b6s4 if you want lol. Rom would help stock version of it.

Hi sorry, I just saw this today.

Here is the stock rom from my car.

I am curious as to what map makes the RS3 sound like that?
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dilly
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« Reply #3 on: August 01, 2020, 02:00:05 PM »

someone correct me if i am wrong but i believe it more or less has to do with the fact that it is direct injection. so the two step method is a bit different
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prj
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« Reply #4 on: August 02, 2020, 01:19:20 AM »

someone correct me if i am wrong but i believe it more or less has to do with the fact that it is direct injection. so the two step method is a bit different
Nothing to do with DI.
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dilly
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« Reply #5 on: August 02, 2020, 09:10:42 AM »

Nothing to do with DI.
*thumbs up* thank you sir
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armaan
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« Reply #6 on: August 02, 2020, 11:47:23 AM »

I have seen our ME7 Hard Launch control, and my god thats violent as hell.

The soft launch feature shown in the video comes with the RS3 from factory it seems.

I guess the first step for me would be to check how different exactly it is from our own ME7 soft launch control.
Guess I was trying to look for a hackjob way of making the car 'sound like that', whereas I should have asked as to what exactly happens during that RS3's launch control: is it a mild ignition retard? or could it be injector overrun? (but not sure if DI injectors would spray that way).

What is the mechanism of that RS3's launch control? Is it just a dumbed down, emissions legal version of our own ME7 Anti Lag Launch?

Just thought it would be interesting to get to know it.
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chacarita
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« Reply #7 on: August 02, 2020, 10:37:56 PM »

I'm interested on following/trying this! I have a 1.8T 06A906032KP to try it on.
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prj
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« Reply #8 on: August 03, 2020, 10:15:35 AM »

It does not exist in ME7.
You need to write your own function for that.

But summed up it is:
* Late ignition (high torque reserve + low zwmin)
* 2-3 cylinder rotating pattern cut (redeta...)
* Shut throttle a little to control the rest (nmax with lower rpm limit)

You can do it just fine on non-DI.
« Last Edit: August 03, 2020, 10:19:07 AM by prj » Logged
chacarita
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« Reply #9 on: August 03, 2020, 11:49:31 PM »

Thanks! Will try when I get a little more comfortable with ASM, but definitely interested in trying to get it to work.
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armaan
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« Reply #10 on: August 04, 2020, 02:38:13 AM »

It does not exist in ME7.
You need to write your own function for that.

But summed up it is:
* Late ignition (high torque reserve + low zwmin)
* 2-3 cylinder rotating pattern cut (redeta...)
* Shut throttle a little to control the rest (nmax with lower rpm limit)

You can do it just fine on non-DI.

OMG! Thanks.

Hmmm I must get into this whole IDA, ASM, making functions thingy thing properly.
Hopefully if I manage to do it, after exams, will post an update here.
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dilly
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« Reply #11 on: August 04, 2020, 09:50:55 PM »

OMG! Thanks.

Hmmm I must get into this whole IDA, ASM, making functions thingy thing properly.
Hopefully if I manage to do it, after exams, will post an update here.
it's not just a "thingy"
enjoy days of your life reading. then more days trying. then more well you get the point. i wouldn't touch asm with a 10ft pole because i know my boundaries. i can use ida but god damn

good luck friend
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nyet
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« Reply #12 on: August 04, 2020, 09:58:37 PM »

OMG! Thanks.

Hmmm I must get into this whole IDA, ASM, making functions thingy thing properly.
Hopefully if I manage to do it, after exams, will post an update here.

If you do not have any extant computer programming experience (minimally in a language like c. Not python. Not java. Not c++), you will not get anywhere.
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armaan
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« Reply #13 on: August 07, 2020, 01:35:01 PM »

it's not just a "thingy"
enjoy days of your life reading. then more days trying. then more well you get the point. i wouldn't touch asm with a 10ft pole because i know my boundaries. i can use ida but god damn

good luck friend

Thanks. Smiley
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It is indeed a difference of perception that brings about our and others reality.
armaan
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« Reply #14 on: August 07, 2020, 01:37:15 PM »

If you do not have any extant computer programming experience (minimally in a language like c. Not python. Not java. Not c++), you will not get anywhere.

Ah I see.....
Ok, thanks for the pointer.
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It is indeed a difference of perception that brings about our and others reality.
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