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Old 05-03-2009, 02:29 AM   #117 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Orlando
Posts: 1,148

The Wagen - '00 Jetta GLS
90 day: 32.72 mpg (US)
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Quote:
Originally Posted by Ernie Rogers View Post

And said in a loud voice that the vehicles are otherwise "the same."
Everything is the same, except the drive trains (we'll assume identical transmissions)... The Gasser is obviously not going to have a charger. And as the charger is 1 of a few points of power loss (motor, controller, batteries, charger, et. al.), moving to a more efficient charger changes the total efficiency and the car is arguably otherwise "the same" as our Gasser counterpart.

For whatever reason, proportional efficiency isn't sitting well with me. I think the experimental setup has potential (pun intended if you want ), however. Execution of the experiment would be difficult I think - as we're measuring energy (a timeless unit), it's totally possible to drive the vehicles in a different manner as long as they're on the same course.



It's late, I'll put more thought into it after sleeping
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