Quote:
Originally Posted by Isaac Zachary
I still don't get it. I'd want fuel to be cut to the engine any time my foot is off the pedal, whether I'm coasting in neutral or engine braking. I don't see an advantage of keeping the engine idling at any speed. Why?
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Modern engines already cut fuel during engine braking. When ecomodders discuss "DFCO" this is exactly what we mean. I would just supplement engine braking by putting drag on the engine with the assist motor (slowing you down a little more and regenerating the 72-volt battery.)