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Old 07-29-2012, 08:56 AM   #14 (permalink)
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The video that Darin posted later in this thread mentions 200ft/lbs of torque (per hub motor?).

Originally Posted by redpoint5 View Post
Thanks for sharing the article, but it annoys me at how little information it contained. All of that talking and no mention of how many HP the motors add.

Also, there is zero percent chance that the system can double the mpg of city driving. I actually get slightly better mpg in stop and go gridlocked traffic than steady 70mph freeway travel in my car (which says something about how the horrid gearing).
Electric drivetrains are very efficient in city driving -- no idling and no warm up time and regenerative braking; but most of all they are about 85-90% efficient almost all of the time. And ICE only hits it peak efficiency at a narrow range of RPM, and that is still typically about 30%.

Apparently, the electric motors do not start until you use the ICE to get the car rolling. So, this is a lot like many e-bikes -- it is NOT tied into the accelerator pedal at all, and so it may not do regen, either. Still I think their claim of 2X the unassisted city mileage is plausible.
Sincerely, Neil

Last edited by NeilBlanchard; 07-29-2012 at 09:05 AM..
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