ByteVenom

I had an idea for me to be able to log which gear I'm in on my DIYPNP. However I fail to see a scripting function anywhere within Tunerstudio or MegaLog.
To determine what gear I'm in, I would use an equation to determine the ratio of engine RPM to wheel rotation's per minute, and from there I should be able to get a rough gear ratio. Then finally I could compare this rough gear ratio to the real ratio (within a certain % of the real ratio) to determine what gear I'm in .

So TL;DR, I'm looking for a way to add a script into TunerStudio or Megalog.

shuiend

iTrader: (24)

Do you have VSS hooked up to your DIYPNP? If so then MS can already calculate the gear and show it in logs.

aidandj

iTrader: (5)

Lars is right, the megasquirt can do that.

You can also do equations in megalog viewer

ByteVenom

I do have the VSS signal (the MPH value in the log). I was looking at basically creating a value that goes from 0-6 (Where 0 is neutral/clutch in, and 6 is reverse), so that in my logs I can see the change in gear without examining the RPMs.

Also, what value is the the calculated gear in Megalog? I've tried using MPH xth Gear, but I don't see that fulfilling what I want exactly.

ByteVenom

I saw the equations part, however I'm not sure how to do conditionals.
I guess I would have to calculate a gear ratio based off known RPM and Wheel Speed. From there I would be able to create a gear ratio variable. This would more useful, because as I shift, there should be a dramatic shift in this gear ratio variable.

aidandj

iTrader: (5)

What you want to do is under Advanced Engine->Speed and Gear sensors->Gear detection

ByteVenom

I may have misunderstood the VSS meaning. In my performance fields in TunerStudio, my Vehicle Speed Source is defined as userSpeedMph. Which is based off of a value in the custom.ini. I looked there and I don't see anything about calculating my MPH. Now I'm quite confused.

ridethecliche

iTrader: (2)

It is 4/20 and you are in lowell. soooooo.....