Quote:
Originally Posted by serialk11r
On a diesel the same principle applies to load, more load up to ~70% or something is increasing efficiency, after that adding more fuel and making more power decreases efficiency.
I think on a diesel the accelerator pedal directly controls injection duration but not sure.
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More modern might do even more than that, but amount of fuel that goes to cylinder.
I was wondering if adding potentiometer for throttle linkage and connecting that so that it would adjust voltage of voltage gauge, would make nice throttle position indicator. For gasoline burners vacuum gauge does that, but with diesel there is always more or less 0 vacuum or then some boost pressure, which I avoid mostly as motor is providing enough power without boost for slow hypermiling.
For me it is hard to know if I press 50% or 90% throttle, but I put sponge under throttle pedal so that it is really hard to floor it, works really well and it is not much more comfy too on long trips
For some reason when I tested top gear and more throttle I got boost at same hill where on 4th I did not get boost, I could keep lot less throttle, but I had to push pedal quite bit down to maintain correct amount of speed decrease.
Another gauge I miss is current output power as I could use that to optimize my power usage and thus consumption. It could be done by software though, addition of potentiometer on throttle linkage, rpm information and boost information should give enough data to choose amount of power from table, just making correct table is big challenge.