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Old 01-05-2017, 05:33 PM   #31 (permalink)
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You are right, the data screens are switched, as you can see in this video.

https://youtu.be/a3CSHsaAL4Q

Another observation I had that may help is that (on a short run at least) current is capable of some level of accuracy.

I drove to the supermarket earlier and Current (large digits) said less than 0 mpg (0.4 or something), however, on the way back I arrived home with it showing 28mpg which is pretty realistic.

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Old 01-05-2017, 07:17 PM   #32 (permalink)
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Quote:
Originally Posted by sallen View Post
Another observation I had that may help is that (on a short run at least) current is capable of some level of accuracy.

I drove to the supermarket earlier and Current (large digits) said less than 0 mpg (0.4 or something), however, on the way back I arrived home with it showing 28mpg which is pretty realistic.
Yah, I was wrong in my initial analysis of why CURR and TANK trip fuel economy displays were off. Turns out that I introduced an overflow bug in the fuel economy calculation, in my quest to save 8 bytes of RAM. It's been fixed, of course, and I have also more fully integrated Imperial gallon functionality into the code. Unfortunately, there will be no way to switch on-the-fly between US gallons and Imperial gallons.

I also made that microseconds/gallon parameter a fixed (non-convertable) parameter. For anyone running my code, whether they select US or Imperial gallons, or if they run in metric mode, that microseconds/gallon figure will stay in units of microseconds per US gallon. That's a legacy from the original DCB MPGuino code.

Going to test the code fixes tonight, and will post the corrected code once verification is complete.
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Old 01-06-2017, 01:19 AM   #33 (permalink)
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Alright - I created another thread to document on-going changes to my version of the MPGuino code. The current version of my MPGuino code may be found here.

I fixed the fuel economy display bug, fixed the compile-time selection of Imperial gallons vs. US gallons (can't see how to implement on-the-fly conversion), and fixed the mislabeled screens.
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Old 01-06-2017, 10:21 AM   #34 (permalink)
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90 day: 50.21 mpg (US)

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Last 3: 70.4 mpg (US)

The German - '99 Mercedes W202 C200 Classic
90 day: 27.65 mpg (US)
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Thanked 9 Times in 7 Posts
Many thanks - I have a long drive of a few hundred miles later, so hopefully it will work sweet.

Thanks again.

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