How to operate vnt15 controller on 1.6L

[monomer]

I'd hate to bump an old thread.


I have an Arduino setting here infront of me looks to be perfect for VNT control. I do believe it's more than enough I/0 for this and pretty easy to program. PIC programming and setup is a bit more complex.

http://arduino.cc/


The best part: the boards are $20-30.

[monomer]

...and someones already in the process:

http://forum.arduino.cc/index.php?PHPSESSID=ldlp4u4sv27kjq81g3p6pocqg3&topic=204748.0

[fatmobile]

 Because the VNT builds boost so high and fast I've found it's best to have the vanes closed at idle and drop off to wide open flow by the time it gets to highway speeds.
 It's what it does in the middle that is up for grabs, when I had the manual controller on the dash; I adjusted according to EGT temps.
 The aircraft spruce EGT probe reacts so fast, it makes a great load sensor.
 Somewhat like a vacuum gauge on a gasser car.

 What EGTs/Boost levels are most people running on the highway?

[monomer]

Because the VNT builds boost so high and fast I've found it's best to have the vanes closed at idle and drop off to wide open flow by the time it gets to highway speeds.
 It's what it does in the middle that is up for grabs, when I had the manual controller on the dash; I adjusted according to EGT temps.
 The aircraft spruce EGT probe reacts so fast, it makes a great load sensor.
 Somewhat like a vacuum gauge on a gasser car.

 What EGTs/Boost levels are most people running on the highway?

And you could indeed include the egt sensor in the program.  When I figure out how this thing works, and to program for it, I'd like to do alot. An LCD display or two could give you info, a few buttons to program what boost, how fast of spool and all that one the fly....It's pretty powerful

It's going to take awhile for me to build something, as the most programming I've done was today (besides the normal "hello world" deal) and it was just a digital led controller.

[TimpanogosSlim]

http://dmn.kuulalaakeri.org/vnt-lda/

not really interested until the tach-from-alternator thing works, myself

plus i think it would be really interesting to see what the possibilities are with a stepper linear actuator controller rather than using a vacuum valve

[monomer]

http://dmn.kuulalaakeri.org/vnt-lda/

not really interested until the tach-from-alternator thing works, myself

plus i think it would be really interesting to see what the possibilities are with a stepper linear actuator controller rather than using a vacuum valve

I'm thinking servo control, doable with arduino

[monomer]

Someones already doing it: http://forum.arduino.cc/index.php?PHPSESSID=ldlp4u4sv27kjq81g3p6pocqg3&topic=204748.0

I'd like a GUI bit to adjust the variables and how they affect the vanes position.

There are plenty of projects with a tach. I'll have to look into it.


(I thought I linked this here yesterday....)

[monomer]

Thats all been done aswell: http://dmn.kuulalaakeri.org/vnt-lda/


looks like I need to find me a VNT!

[vanbcguy]

You mean something like this?



My "end result" is based on the DMN project linked above.  I've already set it up to use a serial LCD (so I can save some pins) and I'm going to be running my EGT probe through it too.  I'm also including a datalogger shield so I can record actual vs. requested boost along with EGT and TPS for tuning purposes.  I just ordered a second pressure sensor too so I can also measure EMP.

[TimpanogosSlim]

It'd be great to see this sort of thing integrated into the MultiDisplay project, which already has a wastegate boost controller w/ full PID.

http://mdforum.designer2k2.at/

'course, I think it would be great if MultiDisplay board sets and/or kits were readily available and cheap.

[monomer]

You mean something like this?



My "end result" is based on the DMT project linked above.  I've already set it up to use a serial LCD (so I can save some pins) and I'm going to be running my EGT probe through it too.  I'm also including a datalogger shield so I can record actual vs. requested boost along with EGT and TPS for tuning purposes.  I just ordered a second pressure sensor too so I can also measure EMP.

Mind making a build thread?


That's amazing.

[vanbcguy]

It's (sort of) in my build thread over in the TDI section. Got a bunch more done on it today - EGT sensor is hooked up along with the control transistors for the "N75" valves.

Once I have everything working perfectly I'm going to actually solder it all up. For the moment it is all on a breadboard.

[fatmobile]

 I've been learning about how to work with arduino.
 I really appreciate all the work you've done. I see you've been working on this project for awhile.
 The info in the links is a little over my head at the moment,... gave me some new terms to search, ha.

[vanbcguy]

If all you want to do is just the VNT then it's actually pretty simple. The code on the site there needs some adjustments to actually work but nothing major (the PWM frequency is waaaaay too high for instance). All the OTHER stuff I'm doing with it gets a bit more complicated. I definitely don't mind sharing though!

[MocroPlay]

If all you want to do is just the VNT then it's actually pretty simple. The code on the site there needs some adjustments to actually work but nothing major (the PWM frequency is waaaaay too high for instance). All the OTHER stuff I'm doing with it gets a bit more complicated. I definitely don't mind sharing though!

Hello guys,

I have a golf 2 1.6L turbo diesel that a hope to fit with an arduino-controlled VNT one day. Have been looking all over the internet on this and found 2 usefull sources:
1) http:// dmn.kuulalaakeri.org/vnt-lda/ (no recent submits from what I can tell)
2) https:// github.com/vanbcguy/vntlda (most recent source that I could find)

I was actually wondering if there has been any progress on this matter as I failed to find a fully operational VNT controller that acts similar to a stock ecu-controlled vnt (i.e. vanes fully open at idle and as open as possible at cruisin speeds for max fuel efficiency and so on, inputs being TPS RPM and MAP).

I'm new here and english isn't my first language so please bear with me.
Thank you in advance.