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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Procede V4 Autotuning demo



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      04-15-2010, 05:25 PM   #111
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Quote:
Originally Posted by shiv@vishnu View Post
It compares the real-time ignition advance value to the DME ignition advance target which we have internally mapped as a 16x16 RPM x Load table and subjected to IAT-induced trims. The difference between DME ignition advance target and CAN DME Ignition is DME-induced ignition retard. This is not to be mistaken for the ignition correction that the Procede induces based upon it's mapping. Instead, this DME-induced ignition retard is based upon, and reactive to, actual Knock activity.
How big is the PRM x Load table of N54 ECU?
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      04-15-2010, 09:33 PM   #112
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is there even a reason to have a conservative map? if there is, do you actually get better gas mileage? if so, then i would like to have a conservative map for daily driving to and from work...
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      04-16-2010, 05:16 AM   #113
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Shiv,

Firstly, looks like a lot of hard work and congrats on releasing Autotune.

If I'm understanding this correctly, anytime the conditions change on-the-fly where the current tune is too aggressive (fuel octane changes, IAT's increase, 3rd party meth system stops flowing, etc), the Procede basically rides the OEM knock protection back down and reduces the aggressiveness of the tune.

Correct?

It's still an improvement, and as you said the user can input how close to the limit they want to live. It's an improvement over the existing maps/firmware or other tunes where if a user inputs too high a tune it's constantly knocking and the OEM knock protection is retarding timing. Autotune will make sure it only happens over 1 run, which is better.

Realistically most real world changes probably aren't going to be that dramatic to cause a big event, but it does seem to be a bit of a reactive approach, no? It's a dynamic tune, but it does basically wait until knock events are happening and the OEM is retarding timing to protect, before it reduces the aggressiveness.

If that's right, I'm guessing the long-term effects of that aren't exactly good. Better than other tunes, but still not good. I know it's impossible to predict when exactly knock will happen in any particular vehicle and environment, but will there be a way to record how often it's having to reduce the aggressiveness without data logging 100% of the time? I would think for longevity you would want to get the tune to where it's sensing knock and reducing the aggressiveness very rarely, an indicator to how often it's reducing would be good.

But today, if you get it wrong in any tune, without data logging you might drive around forever and not be aware that the OEM is sensing knock and retarding timing the entire time. This is certainly a big improvement in performance and safety!

Are there going to be any modifications to the wiring harness required for running N2O; assuming we've already done the Meth wiring mod, or will running N2O also change the meth wiring mod again?

Last edited by Ironring Racing; 04-16-2010 at 05:29 AM..
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      04-16-2010, 09:25 AM   #114
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Quote:
Originally Posted by Treppiede View Post
Shiv, while new software can always be flashed, I am always concerned about hardware revisions. Are there any projected hardware updates on the horizon for the PROcede? It would suck immensely if I buy the PROcede and a few months later a new hardware revision is put on the market (let's say, with microSD port for log storing and later analysis - I am just guessing)...
Quote:
Originally Posted by Sniz View Post
shiv and his Aussie friend stated recently that no hardware updates that will require purchases will happen any time soon.
Quote:
Originally Posted by StartupJunkie View Post
I would echo Sniz's comments too. What I've noticed is that there are more analog channels free today vs. initial hardware launch since the Proceed is able to read more data channels (with increased frequency and accuracy) via the CANbus. In my mind, that provides more future-proofing.

So from a mods perspective, there are still more free channels even after you have Meth and N20 added to your car ... not sure what else you'd need more analog channels for.
Sniz, Junk: Thanks for your input. Besides the availability of free channels which seems to be unconcerning, what about other type of hardware upgrades like the one I guessed in my original post? Shiv?

Thanks guys,

-Walter
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      04-16-2010, 09:25 AM   #115
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Quote:
Originally Posted by Ironring Racing View Post
Shiv,

Firstly, looks like a lot of hard work and congrats on releasing Autotune.

If I'm understanding this correctly, anytime the conditions change on-the-fly where the current tune is too aggressive (fuel octane changes, IAT's increase, 3rd party meth system stops flowing, etc), the Procede basically rides the OEM knock protection back down and reduces the aggressiveness of the tune.

Correct?

It's still an improvement, and as you said the user can input how close to the limit they want to live. It's an improvement over the existing maps/firmware or other tunes where if a user inputs too high a tune it's constantly knocking and the OEM knock protection is retarding timing. Autotune will make sure it only happens over 1 run, which is better.

Realistically most real world changes probably aren't going to be that dramatic to cause a big event, but it does seem to be a bit of a reactive approach, no? It's a dynamic tune, but it does basically wait until knock events are happening and the OEM is retarding timing to protect, before it reduces the aggressiveness.

If that's right, I'm guessing the long-term effects of that aren't exactly good. Better than other tunes, but still not good. I know it's impossible to predict when exactly knock will happen in any particular vehicle and environment, but will there be a way to record how often it's having to reduce the aggressiveness without data logging 100% of the time? I would think for longevity you would want to get the tune to where it's sensing knock and reducing the aggressiveness very rarely, an indicator to how often it's reducing would be good.

But today, if you get it wrong in any tune, without data logging you might drive around forever and not be aware that the OEM is sensing knock and retarding timing the entire time. This is certainly a big improvement in performance and safety!

Are there going to be any modifications to the wiring harness required for running N2O; assuming we've already done the Meth wiring mod, or will running N2O also change the meth wiring mod again?

This may not be right but my understandind is its like the computer is datalogging and when it sees a can timing reduction it adjusts the aggresiveness and actual timing. From my understanding it doesn't change it off of knock but can timing drop out.
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      04-16-2010, 10:20 AM   #116
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Quote:
Originally Posted by ridin135 View Post
This may not be right but my understandind is its like the computer is datalogging and when it sees a can timing reduction it adjusts the aggresiveness and actual timing. From my understanding it doesn't change it off of knock but can timing drop out.
So the question in my mind is what is the difference between a knock event and a timing dropout....


The DME is directing a timing drop for some reason. What could that be other than knock?
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      04-16-2010, 11:11 AM   #117
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So basically all you need to do is have Auto Tuning on, for daily driving, then record the numbers it has set for you, then you can just plug those values into the settings and use it for your Map1 daily driver map? That way the procede wouldn't have to be auto tuning 24/7 if nothing is changing.
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      04-17-2010, 04:37 AM   #118
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Jp made a nice question but I found no answer to this.

Is all the "autotunning buzz" about Ignition Correction or its supposed to adjust fuel/air ratio (which is needed very much) and other parameters?
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      04-17-2010, 04:49 AM   #119
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Thanks Shiv for the awsome tune!!! Just installed my procede v4 yesterday and the power is so fu**ing AMAZING!!!! I was like 5 years old child on christman with a big smile everytime i hit the gas!!!!!!!!!!!! Next week the dp and the fmic is coming on answel. MOre power..

An e46 m3 pulled up next to me yesterday, lets say it was like he was driving a fiat punto when i hit the gas. Niiiiiiice
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      04-17-2010, 06:04 AM   #120
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Quote:
Originally Posted by Ajvar View Post
Thanks Shiv for the awsome tune!!! Just installed my procede v4 yesterday and the power is so fu**ing AMAZING!!!! I was like 5 years old child on christman with a big smile everytime i hit the gas!!!!!!!!!!!! Next week the dp and the fmic is coming on answel. MOre power..

An e46 m3 pulled up next to me yesterday, lets say it was like he was driving a fiat punto when i hit the gas. Niiiiiiice
I have v4, dci, fmic, and catless dp, and I had an e46 call me out too...lets just say it looked like he jammed the car into the reverse gear
sorry

ANYWAY, to autotune, hope a beta map gets sent out soon!
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      04-17-2010, 07:46 AM   #121
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Quote:
Originally Posted by shochu75 View Post
I have v4, dci, fmic, and catless dp, and I had an e46 call me out too...lets just say it looked like he jammed the car into the reverse gear
sorry

ANYWAY, to autotune, hope a beta map gets sent out soon!

Hahaahahah, my downpipes and fmic are coming on next week. For now i run with v4, dci and catbacksystem.. Holy shit!!!! The car is fast..
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      04-17-2010, 02:15 PM   #122
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I have not gotten my PROCede yet, but question... I saw teaser videos and many people asking for a status update on the dash-integrated boost gauge but it seemed to have died off. Is there any chance of this feature being reintroduced or perhaps in closed alpha/beta testing?

I don't want to create a new thread when almost every PROCede owner is here.
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      04-17-2010, 02:35 PM   #123
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Quote:
Originally Posted by Ilma View Post
So the question in my mind is what is the difference between a knock event and a timing dropout....


The DME is directing a timing drop for some reason. What could that be other than knock?
Yeah, I thought the DME retards timing when it senses knock. So tune reduction is triggered when DME retards timing which is triggered when it knocks because of too aggressive a tune.

Knock -> DME Retard -> Procede Autotune

But maybe I'm wrong and something else triggers the DME to retard timing? That's what I'm asking.

Quote:
Originally Posted by TheTwinz View Post
So basically all you need to do is have Auto Tuning on, for daily driving, then record the numbers it has set for you, then you can just plug those values into the settings and use it for your Map1 daily driver map? That way the procede wouldn't have to be auto tuning 24/7 if nothing is changing.
Everything is ALWAYS changing. Temps, IAT's, etc. AFAIK all tunes use the DME knock safety system as the last line of defense, and either try to keep their tune below levels that knock should happen (flashes), or lean on it heavily (JB, V3, SSTT, etc), or allow you to actively trim timing to try to prevent it (V4), but in the end, none of them, including the DME itself, can predict the future and calculate perfectly when knock might occur. So they all use the DME system as a safety backstop.

Where the V4 Autotune is a huge step forward, is you're not stuck with a single tune/map that might be less aggressive than you could run some of the time, and is too aggressive others. Within a short amount of time, it automatically adjusts and increases or decreases the timing/boost/(AFR?).

GREAT IDEA! I think it's spectacular, and a great benefit for V4 owners. And even if the above is correct, and tune reduction is triggered by Knock -> DME Retard -> Procede Autotune it's still miles ahead of any of the others that are either under powered because they have no way of dynamically adjusting (flashes), or run all the time just bouncing off the DME knock detection. At least with Autotune, as I understand it, you would only get one knock instance and then the tune reduces, slowly coming back up.

A count log of the number of times Autotune had to reduce would be good (without having a laptop hooked up 24/7) as then you could just hook up after a couple weeks, reduce max boost/timing/etc targets if the number is high; or don't, understanding that you're sacrificing some run to run consistency.

Quote:
Originally Posted by Panoz View Post
Jp made a nice question but I found no answer to this.

Is all the "autotunning buzz" about Ignition Correction or its supposed to adjust fuel/air ratio (which is needed very much) and other parameters?
Good question.

Last question, will there be additional harness wiring mods required if you're running Meth and N2O, and could we please get those quick. I've had a box on my bench for 2 weeks knowing the day I put it back in it'll be posted.

At least please tell me IF or NOT a harness mod will be required, and if so, approx when will you be releasing the details.

Anyway, GREAT WORK! Really looking forward to it. And I fully understand it's impossible for any engine management system to 100% predict knock conditions, I'm not asking for the Procede to do the impossible. Just confirming/correcting my understanding of the tune I bought and have enjoyed for years (orig V3 owner too).
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      04-17-2010, 03:16 PM   #124
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Quote:
Originally Posted by themyst View Post
I have not gotten my PROCede yet, but question... I saw teaser videos and many people asking for a status update on the dash-integrated boost gauge but it seemed to have died off. Is there any chance of this feature being reintroduced or perhaps in closed alpha/beta testing?

I don't want to create a new thread when almost every PROCede owner is here.
Procede has alot of new features in the works.......in dash boost gauge being one of them but Autotune is way more important and a priority at this time.

Noticed you're taste testing the Procede and giving your JB3 a rest temporarily. Welcome aboard and hope you enjoy your stay. Who knows, you might never look back!!
V4 JB3

If you have never tried the latest V4 setup, you might be very surprised how well it performs and how responsive it drives on the road...................say goodbye to bogging.

If it helps, look here:
http://www.vishnutuning.com/BMW_support.htm

and here:
http://216.120.252.228/forum/forumdisplay.php?f=7

If you need an installation guide try the attached PDF I created.
(It may not be in writing but a simple to follow diagram speaks a 1000 words)
Attached Images
File Type: pdf PROcede V3 Rev.II Wiring Diagram.pdf (104.3 KB, 102 views)
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      04-17-2010, 05:23 PM   #125
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Quote:
Originally Posted by Sparky66 View Post
Procede has alot of new features in the works.......in dash boost gauge being one of them but Autotune is way more important and a priority at this time.

Noticed you're taste testing the Procede and giving your JB3 a rest temporarily. Welcome aboard and hope you enjoy your stay. Who knows, you might never look back!!
V4 JB3

If you have never tried the latest V4 setup, you might be very surprised how well it performs and how responsive it drives on the road...................say goodbye to bogging.

If it helps, look here:
http://www.vishnutuning.com/BMW_support.htm

and here:
http://216.120.252.228/forum/forumdisplay.php?f=7

If you need an installation guide try the attached PDF I created.
(It may not be in writing but a simple to follow diagram speaks a 1000 words)
I always said both tunes are great, but there will be defectors going each direction (JB3 -> Procede and vice versa).

Thanks for the diagram, that was probably the only thing that I needed to make sure of actually. VERY helpful!

I am certain the Procede will resolve my meth bogging issues on 6MT shifts as I have spoke to others who stated the same. I will keep my JB3 however and give it another try when these bogging issues are resolved.
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      04-17-2010, 06:50 PM   #126
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Autotune tested. Good results at the track today

shiv
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      04-17-2010, 06:54 PM   #127
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Quote:
Originally Posted by shiv@vishnu View Post
Autotune tested. Good results at the track today

shiv
So it will hold aggressiveness even after the car is turned off and on (such as the case is after runs). I guess that is what most people want to know.
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      04-17-2010, 07:09 PM   #128
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Quote:
Originally Posted by themyst View Post
So it will hold aggressiveness even after the car is turned off and on (such as the case is after runs). I guess that is what most people want to know.
I'm hoping it still uses the "user adjustables" at startup for a starting point, whether it's map 1 or map 2. Then it reads current conditions and adjusts from there. I also hope that it does not take actual knock to move the the agressiveness, that there is a buffer between knock and no knock that it will slide up and down (kind of like Ignition Correction value now).

I can't wait to learn more, and I expect to be pleasantly suprised!

Last edited by scottp999; 04-17-2010 at 07:55 PM..
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      04-17-2010, 07:33 PM   #129
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Quote:
Originally Posted by shiv@vishnu View Post
Autotune tested. Good results at the track today

shiv
Nice! Any ETA on the beta maps?
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      04-17-2010, 08:00 PM   #130
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Quote:
Originally Posted by shiv@vishnu View Post
Autotune tested. Good results at the track today

shiv
Tease..

p.s. just ordered a PROcede, not because of the autotune but v4's logic in general..good work shiv. (so I guess I'm no longer an unbias onlooker )

Cant wait til its at my door!
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      04-17-2010, 08:11 PM   #131
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Quote:
Originally Posted by shiv@vishnu View Post
Autotune tested. Good results at the track today

shiv
i was just gonna say that your absence must mean something good :-)
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      04-17-2010, 08:20 PM   #132
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Quote:
Originally Posted by shiv@vishnu View Post
Autotune tested. Good results at the track today

shiv
Post the track results please. And some videos too.
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