Recent content by vwdevotee

I'm looking for Gary's 24 channel BMS system, but I can't seem to find either the schematics (and I'll get my own PCBs made) or a link to the kits. I thought it was on tppacks.com, but they don't seem to have it. Am I remembering the website wrong? Thanks!

As I said, the 2.8Whr/mi was for the world record car. I'd be happy even getting down to 10-15Whr/Mi. You also have to remember that these cars are run super smoothly and they have incredibly aerodynamic bodies (world record car had a measured Cd of 0.075 and a frontal area of 0.254m^2); that...

Thanks a bunch fellas! The world record is about 5300km/L equivalent gasoline (2.8Whr/mi), but since this will be out first outing, I'd be happy to reach 1000 and finish the race. The reason I was eyeing the solid spoke wheels was just because they look like they'd take the side loading of a...

Hi. I'm working on the design of a fuel cell powered car for the Shell Ecomarathon, and I want to use a hub motor for the power. I can only seem to find the Wilderness Energy one though. Who else makes them? The wilderness one uses laced spokes, but I thought I'd seen alloy wheels with...

I was just doodling to think my way through a PIC controlled charger and this is what I have thus far. Any thoughts? I figure the charging algorithm should be pretty simple to implement in software. I'll read through the thread you posted. Thanks!!!

I'm on sabbatical for a little while, and I'd like to build my own "smart" charger for my future EV. I know I could just buy one a lot easier, but where's the fun in that? Anyway, does anyone know of a good discussion of high voltage (96-144V probably) battery charger design? All of the...