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Old 03-19-2010, 09:40 AM   #13 (permalink)
RobertSmalls
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Quote:
Originally Posted by Old Mechanic View Post
At 30% (typical electric regen) you get 3.3 revolutions out of 20 back. At 80% you get 16.
Hydraulic Hybrids were at 78% 4 years ago, according to sources at Next Energy when I went there in 2006.
I hold electric regen round-trip efficiency to be about 70%, excluding losses in the tires. Page 33 of this document shows motor*inverter efficiency (which needs to be squared for round-trip) was measured at >0.9 across the most usable part of its range of operating speeds. Losses in the battery are very small.
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