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Old 12-22-2011, 11:48 AM   #23 (permalink)
jamesqf
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Quote:
Originally Posted by Ken Fry View Post
The hybridizing idea is to make a very small engine run at or near full load, where it is most efficient. In the Zing! the engine runs at full efficiency or not at all. If I had a 40 HP gasoline engine (like a detuned Geo Metro or Daihatsu) I'd spend a lot of my time operating at less than 20% power, where efficiency is poor (around 12%).
Another consideration is that you get "free" cabin heat out of the engine. I can't help but think that when outside air temps are in the neighborhood of 0F, your pure EV version is going to be using more electricity heating the cabin than moving the vehicle - especially when stuck in traffic. Even my Insight takes 5-10 miles of 55 mph cruising on level ground before the heater really kicks in.
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