He351ve stand alone Arduino controller code for 2nd Gen Cummins

[Me78569]

Yea, I know what I want it to do, but I am still building the code in my brain, and working through the issues.

[Sean Betts]

Following

[Vais01]

Yea, I know what I want it to do, but I am still building the code in my brain, and working through the issues.

I hear you there. Sometimes it's easier just to start writing and edit from there.

[Vais01]

Following

By all means please do.

[Me78569]

Yea The arduino coding window is open pretty much all the time.  

 

It is hard to make it better than it is now on the top end, but I know it could be improved on.  Right now it works great for my truck, right now...but

 

- I really hate that the code isn't smart enough to adjust the curve based upon multiple fueling levels, without user input to change the curve manually.    I dunno the best way to accomplish this.  More thinking, and so forth. 

 

- I also wish it automatically sense when the truck is at cruise and jump to cruise curve on it's own.   However it is hard to figure out the best way to do this.  I was thinking maybe a timed event that after x seconds at TPS between %20-28 it would sense cruise......again more thought needs to go into that.

[Vais01]

Yea The arduino coding window is open pretty much all the time.

It is hard to make it better than it is now on the top end, but I know it could be improved on. Right now it works great for my truck, right now...but

- I really hate that the code isn't smart enough to adjust the curve based upon multiple fueling levels, without user input to change the curve manually. I dunno the best way to accomplish this. More thinking, and so forth.

- I also wish it automatically sense when the truck is at cruise and jump to cruise curve on it's own. However it is hard to figure out the best way to do this. I was thinking maybe a timed event that after x seconds at TPS between %20-28 it would sense cruise......again more thought needs to go into that.

More fuel will develop more heat and higher amounts of gas volume. Higher volume will produce a little more boost but you will run into the wall after or in this case the upper edge of the compressor map. 40 PSI is max for the volume of air needed. More will be hot air. Edited September 30, 2015 by Vais01

[Me78569]

yep,

 

I wish my code would see that ( weither that is turbo accleration, Drive pressure, etc etc etc) and adapt on the fly.   

 

 

example,

 

With canbus fueling only my curve "dd" works great unloaded, however if I load up a trailer and head up the pass that curve no longer works with the same fueling.  

 

 

Anyways just thinking out-loud and will change / add stuff to the code as I figure out a good way to do so.

[Vais01]

yep,

 

I wish my code would see that ( weither that is turbo accleration, Drive pressure, etc etc etc) and adapt on the fly.   

 

 

example,

 

With canbus fueling only my curve "dd" works great unloaded, however if I load up a trailer and head up the pass that curve no longer works with the same fueling.  

 

 

Anyways just thinking out-loud and will change / add stuff to the code as I figure out a good way to do so.

This is because as the engine works harder more heat is generated and that makes more drive pressure. You could tap the manifold for a drive pressure gauge to monitor what it does then use the data to develop the code. I see the dynamic part you speak of for sure. The 1800 - 2600 RPM area would need to be more dynamic to compensate for highway hauling.

[Me78569]

Already have drive pressure into the arduino.

I'll get there just need a good few hours of coding to get the idea.

[Vais01]

Already have drive pressure into the arduino.

I'll get there just need a good few hours of coding to get the idea.

I would keep an eye on engine load when you do it may be the most helpful. Both drive pressure and load will go hand in hand.

Edited October 1, 2015 by Vais01

[Invaliduser113]

Hello, 

I have been following this build and the amount of knowledge is amazing! I am trying to get a 351 turbo onto my 4bt dakota and if all goes well onto my 05 ram. i am very limited in knowledge of programming but am a mechanic by trade. I have all the parts listed in Holset HE351 VE VGT standalone Turbo Arduino Controller Tuner article. I have all the libraries and downloaded and uploded HE351mainfreq 1.04. i can not get the lcd to show any thing other than 2 rows of white squares and 2 rows of blue back ground, not sure if i am uploading wrong? I have tried controlling the turbo using the push pull pot and was unable to get the turbo to move. I uploading the simple blink test from examples onto the board and that was working. I am at a loss. 

Thank you 

[Me78569]

Are you bench testing or is this in your truck?

What screen? Have you adjusted the contrast of the screen?

How do you have it connected and to what pins on the arduino?

[Invaliduser113]

I am bench testing it first on the floor then the garage to chilly so it went inside to try and figure out what i did wrong. I have the exhaust housing off for verification and mock up on the truck. It is a dfrobot lc2/ twi 4x20 lcd or so the paperwork says. I have tried hooking the scl to pin analog5 and to the scl pin, also the sda to pin analog4 and sda pin on the board, vcc to 5 volt and gnd to ground. I have tried changing the contrast it changes the intensity of the white squares. 

Thank You 

[Me78569]

So the sda and scl should be on pins a4 and a5

I think I had that issue when I had the sda and scl backwards

[Me78569]

Also you might have to verify the address (on the first page of the code near the top)of the screen when it is connected.

I will quote what I mean in the am.

[Invaliduser113]

That was the ticket had to set the screen to 0x20. Works great. just need to get another 2 pots for the drive and boost and see if there is life in this turbo. Thank you very much for the help. 

[Me78569]

Great!!

Good luck.

The setup page should cycle the vanes on the turbo from open to closed.

Ensure you have a good power source for the turbo. It will need at least 10 amps

[Invaliduser113]

Here is the next problem, again i am unsure if the actuator works as this is a used turbo I will hook it up to cummins and set it up for install tomorrow pm. Anywho, I added pot's to mimick boost and drive but am unable to get the turbo to respond. Along with the turbo does not cycle at start up. Is ther a way to monitor and see if the shield is ouputing data?

[Me78569]

Do you see the startup message on the screen?

Can you take video on the controller screen when you apply power?

When you put power to the turbo is tself do the vanes "jump"?

[Invaliduser113]

The vanes do not jump but you can hear the actuator power up. I pulled the actuator off and the gear does move. I will try and post a video or link it to photo bucket. It seems to be the correct start up and cycling vanes. I have double checked the wiring to the actuator for power and can + and -. They are correct.