how to calculate diesel fuel consumption?
I am trying to evaluate real-time fuel consumption of diesel engine, and I have learned a post " Fuel economy / consumption for Diesel vehicles in DashCommand ", in this post,the author mentioned that
DashCommand should do fuel economy calculations for all gasoline and Diesel vehicles that comply to the OBD-II spec. ALL OBD-II complient vehicles must support the 5 PIDs that DashCommand needs for fuel economy, SAE.MAP, SAE.IAT, SAE.RPM, SAE.VSS, and SAE.LOAD_PCT. BTW, the last one is only needed for Diesel vehicles
What a useful hint for me to do my work!, however, I do not understand the true method(formulations) to use the 5 PIDs to calcuate the diesel fuel consumption.
Can anyone do me a favor to explain the formulations of the calculating?