Recent content by Nuts&Volts

Anyone confirm the exact weight of a 16s module? Thanks

Can you share the weight and overall dimensions of the final motor? Awesome project. Slowly reading thru your blog

https://www.sae.org/publications/technical-papers/content/2014-01-1879/ That link should work. You have to buy the paper or find another means to get ahold of it

Just found an awesome paper detailing the differences between the Gen1 (11-12 MY) and the Gen2 (13-17? MY) http://saegtl.org/ev/data/uploads/ev-content/gtlev_tp_2014-01-1879.pdf

Very interesting with the display programming. I did it all by hand on my unit using the display a couple years ago. Might give this a try sometime soon. If I'm understanding correctly, you are using the DVT software to program what displays and where/how big it displays on the screen? Sent...

Currently have a R6 with a Size6 and 75-7 motor. The motor has been modified to operate as a 6 phase motor in the future with the addition of a size4 controller. 28s of 2012 Nissan Leaf cells. 6000 RPM =110mph, usually cruise at 75 (-4100RPM) for 10-20minutes. Can really do any profile to...

This is great data!! Thank you for sharing

This report shows that the cells can handle 9-11C peak discharge...http://media3.ev-tv.me/DOEleaftest.pdf This page shows the cell doing slightly less than 3C continuous test. http://www.eco-aesc-lb.com/en/product/liion_ev/ Both of these pages refer to the original cells. I believe these are...

Ok thanks guys. I have some 2012 modules. They only hold about 55-56Ah in them, but I'm able to pull 640A at peak out of them. So I call that about 10-11C. Eventually when I have to upgrade this pack I want to be sure I can get a bit more power from them.

I read somewhere in another thread that the 2015 Leaf cells may have a higher C-rating. Can anyone confirm this? I know that they have a tweaked chemistry of some kind to handle hot temperatures better and improve warm weather cycle life.

Drag racing would be a lot more reliable. We could stop blowing up brushes with DC motors and actually set some records. 200mph+ I understand that a DC controller power stage is much simpler, but there is currently a reliable 2000A controller available. Zilla 2k. We actually have two 4K...

I've been using the 324Vdc value for all of my calculations. Thinking about it more thou without a input capacitor to smooth it out, the average voltage may be a more realistic value. What calculator are you using? I'd love to compare it to the excel file I've made to calculate all of this

Haha I can tell you first hand that this is not the case. The name does have draw, but cant say its brought much money in Your quite right that a set of brushes is small potatos, but most of the time your not damaging brushes. The commutator can be easily damaged, the springs always melt and...

This is exactly the problem. The Garlits car would be Brushless already if the controller were available to do the 1600HP+ needed for the job. But hopefully things are shifting that way with some more development.

This is awesome. Need to find an android device to use this on