He351ve stand alone Arduino controller code for 2nd Gen Cummins

[Mystykal]

5 hours ago, Me78569 said:

You'll want to tighten the positions for the 40,000 rpm and above band.  I can look at the code and refresh myself later and tell you the line number to adjust.

Thanks man! You rock, I had to replace the actuator with one from City diesel an it works nicely, but I believe i`m not getting a vane test thats working right, it does one cycle says done then goes to the data page.

[Me78569]

1 is where the turbo starts when you leave a stop

2 is the rpm limits for each step of the turbo related to shaft speed.  

3 is the limit for vane position when the rpm range from 2 is reached.  

 

 

If you are having trouble getting the turbo over 80,000 rpm then I would make #3 be something like {840,800,780,760,740}  and try again.   

 

 

for the calibration function the turbo should walk %100 open then walk back to %100 close and then be done.

 

[Mystykal]

The Exhaust brake doesnt seem to work right now either, I`m wondering if it is a bad cable setup, though it might be something on our end.

2K RPM on the engine an up seems to be a bit more snappy, but down between 1K an 2K it feels weak still, I have a smarty touch on the 90HP tune so it has fuel to spare, but Im wondering if I need to change the RPM curve now? It seems like its opening up to soon an letting the drive pressure drop off, the turbine is a HX40 67MM upgrade with a machined out exhaust housing to allow better flow for no drive pressure spikes during towing, i`m wondering if it flows so nicely that its not allowing good drive cause its letting off to soon?

[Me78569]

your drive to boost should be like 1.5:1 untl shaft speeds are above 100,000 rpm.    i wouldn't mess with the rpm curve, only the position curve.  each "50" is .5 cm of housing size.  

[Mystykal]

1 hour ago, Me78569 said:

your drive to boost should be like 1.5:1 untl shaft speeds are above 100,000 rpm.    i wouldn't mess with the rpm curve, only the position curve.  each "50" is .5 cm of housing size.  

Does the size go up or down with the number as in high or low? So 1000 would be *small* and 50 would be *full open*??

[Me78569]

the approx conversion of opening size is right at the bottom area of the image I linked this morning.  

[Mystykal]

19 hours ago, Me78569 said:

the approx conversion of opening size is right at the bottom area of the image I linked this morning.  

Yeah sorry, I`m going to take the turbo apart next weekend an make sure i have the arm/VGT ring setup right, im wondering if its not back at proper zero to start with.

[Me78569]

This has the method to calibrate the actuator hardware.

 

 

[Mystykal]

I rebuilt the turbo, what I mean is i`m not sure it is in the stock location that it should be, which could be throwing it off by not being AT the actual start location, it could be off from there an not allow for proper full rotation.

[Me78569]

the motor that spins doesn't really have a start and end position, that is where the calibration comes in.  The calibration sets the limit of travel so the motor doesn't try and force the arm beyond the limit.

[Mystykal]

I drove it to work before I left for Mt weekly route and it is much more useful then before, I adjusted the rpm curve some. I had to make the housing settings fairly tight or it let off way to fast, by 60k rpm it would go and open to 9cm or More and jt would barely make anything. Cruise at 72 or so, I run 4psi B/DP and its steady as a rock, egt 700 to 800. At just 20pai of boost on a pull it freight trains with no problem, I wonder if the air filter i have is so small that it js the limit for overall boost? Hitting 35psi and up is a huge choir that takes ages 

[Ravewolf]

I bought all the stuff including the 9924 chip and the obd adapter. My question is what do I do with the chip? Do I have to solder it to the board? Or to wires individually? Anyone got a complete picture of a setup? 

[Me78569]

humm I guess times have changed since I created this.  when I bought my 9924 chip it came with a 10 pin pcb board to get soldiered to.   I attached the board to the red breadboard / screewboard adapter that sat on top of the Arduino.   

 

 

you are looking for UMAX-10 pcb

Edited November 29, 2022 by Me78569

[Ravewolf]

2 hours ago, Me78569 said:

humm I guess times have changed since I created this.  when I bought my 9924 chip it came with a 10 pin pcb board to get soldiered to.   I attached the board to the red breadboard / screewboard adapter that sat on top of the Arduino.   

 

 

you are looking for UMAX-10 pcb

This is what I have to use as a pin breakout 

https://www.amazon.com/Terminal-Breakout-Shield-Module-Arduino/dp/B08LH5TCM5?pd_rd_w=08Uv4&content-id=amzn1.sym.3cb9b85f-43ef-4d4b-94d0-0a8efe2194e9&pf_rd_p=3cb9b85f-43ef-4d4b-94d0-0a8efe2194e9&pf_rd_r=3BXJJ0ZSXQH23PFQMB95&pd_rd_wg=99JM4&pd_rd_r=d02b3756-d0af-4761-89e2-ba517c9f2e75&pd_rd_i=B08LH5TCM5&psc=1&ref_=pd_bap_m_rp_1_qv

 

 

That umax board won't work with this, will it? 

[Mystykal]

when we got the parts for me and my buddies, we only could find the chip an not a board. So he had to soder it up as well, I had to rebuild my turbo to make sure it was good, I think i put the arm back into the place it was supposed to be from last time. 

[Me78569]

I don't think the board will fit onto that shield, but man that is a cool shield.   I wish that was around when I did mine.   

 

I am not sure of a great way to hook up the 9924 chip with that setup.   I don't really remember which wires are needed on the 9924 anymore.  

[Mystykal]

Hmm, might have to do some thinking and digging on this, I just got my exhaust rebuilt an back on today as a single turbo. When it starts the turbo does its homing setup, which you hear as the brake kicks in, then when i hit the EB button, nothing happens. So i`m wondering whats up. EB shows up on the screen, but the turbo dont do the dance.

Edited November 29, 2022 by Mystykal

[Ravewolf]

1 hour ago, Me78569 said:

I don't think the board will fit onto that shield, but man that is a cool shield.   I wish that was around when I did mine.   

 

I am not sure of a great way to hook up the 9924 chip with that setup.   I don't really remember which wires are needed on the 9924 anymore.  

What was the breadboard you used? And is the chip necessary? That breakout board has pins for stacking a shield on it 

[Me78569]

the chip is to ready shaft speed.  you can control the turbo with boost vs drive, but man it works a lot better with the shaft speed version of the code.

[Mystykal]

I ended up returning everything to stock except the slight changes you suggested. It's a bit lazy under 1500-1650, I blame that on the 63mm wheel though.