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Old 11-26-2007, 10:40 AM   #208 (permalink)
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
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01-01-2007, 10:01 Pm

Man, my tinker time this weekend was fruitless and frustrating.

Couldn't get EITHER controller to work (had another suggestion on the Curtis that I hadn't tried last week so I was back at it today).

Also, I learned in my reasearch that the GE EV-1 controller that came with the forklift isn't really well suited to small battery packs such as in a converted car (even "regular" size packs, not the 6 or 8 batts I'll be using).

The EV-1 has no capacitors on the input side, and it switches at a fairly low rate (around 300 hz), which means that you get the equivalent of "water hammer" in the current coming from a small battery pack.

The result: the EV-1 controller will both shorten battery lifespan and lower range per charge compared to a modern controller. You can retrofit a string of capacitors to improve it, apparently, so that may be something to look at.

None of that matters if I can't get the durn thing to work in the first place. I'm relying on the wisdom of the EVDL to help. I'm sure it'll get sorted out eventually.
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L

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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