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Old 11-27-2007, 11:58 AM   #305 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
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Someone points out that driving and EV efficiently must be very different from an ICE...

You're right - it is a totally different ball game, and there's no EV driver's website where I can go talk about the best techniques for driving the thing.

It was in 2nd gear for the speed run. I've read that electric motors are more efficient in the neighbourhood of 3k RPM, and that's roughly where it would have been at that speed. But... low RPM gives more torque, so maybe I should have shifted. Dunno. Don't have enough juice yet to do repeated runs

I may have even read somewhere that you UPshift an electric car for hill climbing (if your controller and pack can deliver the extra juice required to make the torque).

For regen, the electronic motor controller has to be designed to do it. The two that we have don't have that option. Still, it's better to coast where possible, rather than regen (unless you HAVE to brake). The 5 k neighbourhood run I did on the weekend was with lots of coasting to stops with the gear selector popped into neutral - almost no brake use.
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EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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