Quote:
Originally Posted by Daox
So if low power inefficiency isn't due mainly to pumping losses what is it due to?
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I posted some stuff in a thread Doug Miller started about efficiency.
To sum up. Pumping losses are less than 5% of shaft hp upto WOT, where they go toward zero. The loss of efficiency is simply thermodynamics. For an engine throttled down to 20% and a compression ratio of 8.5 the effective CR is 1.7:1. So at full throttle the maximum (Carnot) efficiency would be about 57% but throttled about 20%
Quote:
Originally Posted by Daox
He probably just used pseudo-CVT since the Prius CVT is quite different from a conventional CVT and didn't want to confuse readers. The guy owns a 1st gen Prius and is quite knowledgable about how they work. He has written several articles on and about the car.
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Well, that's good to know. You can tell, I bristle whenever it looks like someone is disrespecting Prius engineering.
-mort