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0 pointsN1H1L16d ago0 comments

Not true. The CdA (coefficient of drag multiplied by frontal area) matters far more for range than the weight for range. That is a smaller EV, which may very well be heavier can have a higher range and efficiency.

0 pointsN1H1L16d ago0 comments

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5 comments · 1 top-level

dotancohen16d ago· 4 in thread

The Cd matters for highway driving, but weight is the dominating factor for city driving.

xethos16d ago

As efficiency improves across motors and inverters, wouldn't regen make CoD matter more, possibly tilting it to the dominant factor again?

dotancohen15d ago

Regen recoups about 80% of the kinetic energy, and it is already up close to the theoretical physical limit without switching to exotic materials.

Cd will never be the dominating factor at speeds which do not produce significant aerodynamic drag.

1 more reply

anonymars14d ago

Remember also that tires (deformation) and the like sap energy too

thfuran16d ago

I don’t think there’s a whole lot of room for improvement there.

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