VGT control idea for a Holset HE351VE turbocharger
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- čas přidán 19. 03. 2013
- An idea I came up with for controlling the vanes using a standalone ems for gasoline applications, referencing shaft speed, back pressure and engine load. It's still in the bench testing phase
you left your gun on the workbench...GOOD INFO THANK YOU!
Keep up the good work, pretty interested in this. im planning on using this on rb25 neo motor. Was initially planning on using a low psi actuated traditional wastegate can that was more finely controlled with an EBC of some sort. And use a second tab that catches the gears when they start to retract back to close position to slow it down, and then release them once theyve fully retracted. My goal is to then control the boost pressure via the EBC, but manuall control the retraction of the vanes.
I’m certainly a gun guy myself so don’t have any problem there... but were you afraid someone was going to steal your turbo?
Progress has been a bit slow on this. A month after I posted this video I had a house fire (April 2013) then later my mom broke both of her ankles and then 3 days later broke her back and then last year my aunt had brain surgery and stayed with us for 6 months during her rehab. To top it off I've had to move 4 times since the fire so as you can imagine it's been a bit crazy.
I finally pulled the OEM controller completely apart. Sadly the way the factory stepper motor is built and how the circuitry in the board is designed there is no viable way to use the OEM system. I'm pretty sure with lots of time it would be possible. The hardest part would be breaking down all of the PIDs the stock ecu uses to command the VGT module.
I also have a viable project that would be perfect for this turbocharger (1990 accord I got for free, motor will be built, 12:1 static compression using E85, head work, etc) and I believe that I've tweaked the mechanical system enough that it would work fairly well and allow me to get the car in a position to be drivable and see how the initial idea works.
I have been strongly considering building a standalone electronic controller as a VGT controller. I'm debating between using Arduino or a Raspberry Pi2. I'm leaning towards the Pi2 as it supports a GUI via it having on board display support. It would be similar to the controller Fleece built.
It would monitor turbine shaft speed (via the included speed sensor), boost pressure, pre-turbine backpressure (Drive pressure for you diesel guys), EGT, Engine RPM, and the Throttle Position Sensor on the throttle body. It could then relay this information visually via the display which would also be touchscreen to simplify operation of the controller. Only thing I'm finding difficult is how to write the code that would manipulate the vane position properly. I'm not the greatest with coding.
But in addition to controlling the vane and displaying any information the controller receives or generates on the display screen I would also like to include things like different levels of vane control aggressiveness. For example a "highway" mode where the vane is fully open to decrease drive pressure, lower EGTs, and maximize fuel economy. Something like when in highway mode and TPS is below say 50% then the vane is fully open but once the TPS signal exceeds the set point the vanes start to close to build boost faster since at that point you'd be trying to accelerate.
Other modes could be things like "Street" for moderate response where the vane stays somewhat closed but not all of the way, "Race" where boost would build fast but at higher RPM the vane opens enough to maintain boost pressure but at the same time allows for maximum high RPM power, this would mainly be by decreasing drive pressure and lowering EGTs. Last would be "Kill" or something where the goal is to make peak boost pressure as fast as possible, traction be damned.
Sorry for the long post but I had a lot on my mind about this project. I'll try and get a video up that goes into the finer details of what I expect the "prototype" controller to be capable of.
As always I'm open to comments and advice.
And yes I love my Glock, I didn't actually even notice it was in the video lol. It's a Glock 19 Gen 2 born September 1992. It doesn't have a mark on it and everyone's thinks I'm lying about its age haha. It belonged to one of my grandparents on my mothers side. Both were in law enforcement... My grandfather was Atlanta PD from the time when he was still chasing moonshiners through downtown Atlanta to his retirement at the 96 Olympics. My grandmother was the first female Fulton County Sheriffs Deputy to reach the ranks of Lieutenant and Captain, first female Deputy to carry a service weapon, and the first "mom" of the female inmates in the Fulton County Jail.
So If you use the dual port backward where engine vacuum holds the vanes open off throttle. That way when you go to decelerate you don't get the exhaust brake because the vanes open with engine vacuum. Then you put turbo boost pressure In the other port. When you step on the throttle, manifold vacuum drops and starts to close the vanes and as you reach your desired boost level then the vanes push back open. Vacuum and positive boost pressure should push the rod the same direction. Sound right? Still probably gonna need a waste gate for better boost control though
Применил двухступенчатое управление по давлению. Никакой электроники. Настраивается за пол часа. Доволен как слон. Мощность, экономия топлива около 30 процентов.
What if you wired it in series for cruising speeds with the torque converter or somthing of that nature
The stock electronic controller won't work without serious modifications since it uses a canbus system
I just snagged a pneumatic actuator off the larger he431ve off of ebay for cheap so I'm going to see if I can use it somehow and simplify the system
try to modulate the boosted air supply to the vines controller by some sort of valving depend throtol demand.
Any updates more videos i have a million questions
ever thinking about just getting some sort of PWM control, and just using something like a microsquirt to control the PWM via RPM/Boost tables?
Very interested in seeing the progress of this project. If you could make a DIY VGT vane controller that would be pretty fuckin cool. The main reason for using a VGT turbo on a gasoline engine (in my opinion) would be eliminating lag. It's really expensive but there is a company called "Suprock" that has come out with an electronic standalone VGT controller.
Nice Glock ;)
Viktor Agnar Falk Guðmundsson is it?
Hey, Good info. it seems like you are trying to recreate the stock setup. would it be easier to program to run the stock vvt controller? also, nice glock. so many car people are gun people.
Vvt is completely different.
From a vgt
when the vanes are closed all the way to the 2cm, it's a exhaust brake, so they literally are hitting a brick wall haha
i use my ebp to operate it
I saw a guy block off the two Water and drill the freeze plugs on the other side and run his water that way
William Staab i don't know if you are still into HE351VE but the guy called froggyv8 on YT used 2 actuators.
1st vacuum controlled to operate vacuum conditions - that rapid choke when you left off throttle 2nd to control boost.
turbotalk.org/bb/viewtopic.php?f=25&t=775&sid=944b3d76956a88f4b1153684a3e05508#p6728
sry man keep refining.. until then we will hopefully get a better electronic actuator... unfortunately actuator is based of of demand not cruise speed wich wouldnt really vary depending on speed but demand of engine at particular speeds cruising at 70 mphfor turbo is not the same as crusing at 35mph
look everyone I have a pistol!
why cant you hack the factory vgt controller and just use it ,, coolant wouldn't be a issue if you did
EVERYONE ELSE JUST MAKES A STOP SO IT WONT BE FULLY CLOSED
Use arduino to control it with oem controller and you don't need to mod. Everything
I was thinking the same thing Johan, Good idea...
I turned my car then started talking about MPG. WOW
My tuned tdi with a vnt turbo gets incredible mileages
Easily more than 60mpg