Electronics > Open Source Hardware

OSHW Turbo Diesel Tuning Box

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Here's my progress so far: http://hackcorrelation.blogspot.de/2016/05/designing-better-diesel-tuning-box-part_23.html

TL;DR version: ">30% fuel savings while idle." "25% highway mileage increase".

This was a version done as a proof of concept, I still have to wait and see if the ECU will adapt itself to the new values and revert to the old consumption, but so far it was on the car for more than 600km.


--- Quote from: brainwash on May 04, 2016, 10:15:26 am ---Doable? Yes. Trivial? Up to you to decide.

--- End quote ---
there is one line of high class tuning boxes that is two PIC18 and two can transceivers. period. nothing else on the board (well, a bit of supply filtering and protection but that's it)
That one can be used with a limited range of cars (also because you need to decode/encode the messages from/to the ECU and for that you have to know the right people) but that's an example on how simple it can become on the hardware side
others that i've opened never had impressive hardware or protection anyway


--- Quote from: janoc on May 08, 2016, 04:12:44 pm ---That did happen already:

--- End quote ---
And this is OSHW by the way. See also https://www.eevblog.com/forum/projects/rusefi-open-source-standalone-engine-management-system/

I would love to add diesel logic into the firmware once we find somebody to try this on a diesel.

Did anyone get any further with this?

I have had Diesel boxes on several of my cars but have always been interested if there was something more open source available.

I did link above to a blog post which was eventually continued and a project was published some years ago. But after extensive testing I've figured out that it doesn't do much. The consumption is almost exactly the same, there is some additional low-end torque (depending on settings). Basically the computer things it's pumping less fuel so it's compensating. The estimated consumption looks lower than the real one since the car computer doesn't have the correct data to calculate it.

The new TL;DR is: don't bother.


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