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Firefly Electric Conversion

Cleaned up the engine & bay. Pressure washer wouldn't start, so had to do without. Started disconnecting hoses and wiring:
http://photoshare.shaw.ca/image/b/2/...fly00051-0.jpg

Yoink!
http://photoshare.shaw.ca/image/b/2/...fly00052-0.jpg

De-iced.
http://photoshare.shaw.ca/image/b/2/...fly00053-0.jpg

That was done in the first few days of having it...then xmas/life got in the way.

Nice progress. Can we hear a bit more about the parts you've collected and plan to use for the conversion?

Quote:

Originally Posted by Daox (Post 503829)

Nice progress. Can we hear a bit more about the parts you've collected and plan to use for the conversion?

Horsepower is all you guys care about, isn't it? :p

Well, here ya go...here's my motor:
http://photoshare.shaw.ca/image/b/2/...fly00080-0.jpg

Just joking! :D

Here's my main motor:
http://photoshare.shaw.ca/image/b/2/...fly00078-0.jpg
It's an 8" Advanced DC sep-ex, presumably out of some form of electric forklift. Weighs about 120lbs.

And here's a possible alternative that I picked up off of Mechman600 a while back at a good price:
http://photoshare.shaw.ca/image/b/2/...fly00079-0.jpg
Which is a 7.25" Prestolite sep-ex traction motor, out of a Schaeff lift truck. Was in Mechman600's Electric Booger for a while.

I've got 10KWH worth of LiFePO4 batteries, the only thing I bought new for the project:
http://photoshare.shaw.ca/image/b/2/...fly00067-0.jpg

The only thing I accomplished on the project during the xmas/new-years holidays was the negotiation of a used controller at a good price:
http://photoshare.shaw.ca/image/b/2/.../2553_16-0.jpg

Otherwise, I've got bits and bobs like contactors, fuses, and what have you, and I'm waiting on a package with a DC-DC converter, breakers, more contactors (guess you can't have too many), and the cooling kit to go with the controller.

Still figuring out what I'll be doing about a vacuum pump and a real charger, but I have time for that while I work on the rest. :)

Testing the controller...

Being paranoid, I couldn't sleep well without knowing if the controller worked or not when it arrived a week or so back, so within a day or two, I was hacking it together to test it out.

First thing I learned, it wouldn't turn on without the interface module plugged in:
http://photoshare.shaw.ca/image/b/2/...fly00057-0.jpg
(Remind me not to loose that thing.)
It powered up just fine, which was a great start. :)

Of course, it threw error codes about the contactor. So I had to hook one of those up. And I hooked 12v up to the contactor and the controller...but it still threw the code. After trying another contactor, which didn't make a difference, I decided to try 24v to the contactor and controller, and viola! I got the green light. Litterally! :p

The interface module showed that I was able to control the output voltage, which I confirmed:
http://photoshare.shaw.ca/image/b/2/...fly00061-0.jpg
http://photoshare.shaw.ca/image/b/2/...fly00063-0.jpg
http://photoshare.shaw.ca/image/b/2/...fly00062-0.jpg

But I wanted a load, any kind of load. Well, ok, it's a tiny load, but it's a load. In the top left corner:
http://photoshare.shaw.ca/image/b/2/...fly00054-0.jpg
http://photoshare.shaw.ca/image/b/2/...fly00055-0.jpg
http://photoshare.shaw.ca/image/b/2/...fly00056-0.jpg
That poor little 10-watt, 12-volt bulb somehow survived having 24v across it for a second at a time. Sure, it went super-nova, but hey...it proved that the controller works. :thumbup:

So, yeah, the controller was my latest acquisition. It popped up for sale just after I bought my donor car. I'm pleased with my purchase and the price, and it's versatility(Voltage range, amp range) opens up new options, which I appreciate. :) The only thing it doesn't do that I was originally hoping for is regen braking, since I have Sep-Ex motors, but I'll just have to live without. :p

Quote:

Originally Posted by Stubby79 (Post 503857)

Horsepower is all you guys care about, isn't it? :p

Well, here ya go...here's my motor:
http://photoshare.shaw.ca/image/b/2/...fly00080-0.jpg

That looks like the motor from my clothes dryer ...

Quote:

Originally Posted by Stubby79 (Post 503860)

I've got 10KWH worth of LiFePO4 batteries, the only thing I bought new for the project:

So what voltage are you running? Since you already have the pack ..

Quote:

Otherwise, I've got bits and bobs like contactors, fuses, and what have you, and I'm waiting on a package with a DC-DC converter, breakers, more contactors (guess you can't have too many), and the cooling kit to go with the controller.

What have you fused the controller at? Do you have a part number on the fuse? I messed that part up and am looking for examples :(

It is great to see another Metro conversion in the works. I have converted several Metros and really like this choice of chassis. It was the king of mpg when it was an ICE, and it will be the king of miles per kW as an EV.