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Old 03-31-2015, 12:27 AM   #291 (permalink)
P-hack
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Quote:
Originally Posted by GreenHornet View Post
anything that can run off the engine can run more efficiently off an electric motor
For some reason, I feel compelled to mention that this is generally true over a wider dynamic range, but (not unlike the manual vs cvt vs??? discussions) a direct connection has better peak efficiencies, so efficiency gain is relative to driving (operating) conditions vs the operating conditions considered during design (and the drivers ability to replicate those conditions).

i.e. it might not make sense on a plane or boat that rarely stop and go, but cruise within a fairly narrow band, or for a driver who does mostly the same (or can toggle between those conditions and "off").

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