Quote:
Originally Posted by Old Mechanic
Also consider the generally accepted practice of not charging the battery to 100% or discharging it to below 20% and the fuel tank on the Leaf just shrunk by 40%.
Without engine design optimization, the power train is the secret to higher efficiency. 80% mileage improvement is a practical figure for a power train that allows only best BSFC engine operation. It's also possible with current technology to make an engine better than 40% efficient on gas and closer to 50% on diesel if you optimize the engine for only operating at best BSFC instead of using throttling to control power output, or in the case of the diesel super lean burn AF ratios.
regards
Mech
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I was under assumption that the Leaf probably already has something like an 80/20 limit in charging, since it generally improves battery life.
Also, while it's true that electric motors do have efficiency maps, the ones I've looked at do not fall off nearly as sharply as on gasoline motors.
I agree that adding lossy conversions is inefficient, but we're looking for the least of evils in real-world conditions.