taylorpro

Hey hey. Trying to find an equivalent channel to what Megalogviewer calls "Duty_Cycle" which outlines Injector Duty Cycle within the real time CAN stream that MS sends out. Searching the document for "duty" there wasn't a clear answer for what channel might represent that information, nor anything that looked promising. Anyone have any help??

Thanks,
Taylor

http://www.msextra.com/doc/pdf/Megas..._Broadcast.pdf

Brian Butler

Where are you using the data? If you have the ability to do some calculations, you could always calculate the duty cycle from the pulse width fields (looks like pw1 or pwseq1) and RPM.

taylorpro

I'll be using one of our Cosworth Omega D4 dashes. It has internal logging, math, etc. so I could go about it that way. I've already imported (and modified) the .dbc CAN stream that the megasquirt sends. I do have PW1, PW2 and RPM in the current stream. I'm not familair with the math to calculate duty from them?

Thanks,
Taylor

Brian Butler

I would calculate it then, its pretty straightforward. Have a look at this site, it has the calculation you need:
injector-duty-cycle [ECMTuning - wiki]

taylorpro

Thanks Brian