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Old 03-03-2009, 12:41 PM   #491 (permalink)
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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
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
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Originally Posted by MazdaMatt View Post
I'm starting to think DIY here, but time/budget aren't there for me right now. I would love to develop a DIY 3-phase AC igbt-based controller.
I think Craig McM is probably reading this thread and may be able to comment, but there's a member of the Ottawa EV group who has done a DIY automotive AC controller (not Craig, but he's probably got a better grasp on the technology than me).

He built an inexpensive AC Geo Metro conversion with regen, and has built an AC system for his riding lawn mower. He occasionally demonstrates the latest iterations of his controllers at the meetings.

I don't know enough about the technical details, and didn't pay a lot of attention to how he did it though.

Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
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