Battery Vehicle Society

On the website you posted I see the motor is rated 24-72V, but you're using 96V. Is there any kind of rule of thumb for upping voltage like this on these industrial motors ? Motors are just energy conversion devices, you can pick all sorts of operating points. If a series motor was rated at say 10h...

So, 25 miles is 422 Wh/mile. In truth its more than that due to charger ineffiiency Ouch! That does seem rather high. I'm sure it will get better as you improve your driving technique and find the best gear to run in. I was able to get 300Wh/mile from the Scirocco commuting along the M1 from J11 to...

Put modern fuel in an old vehicle and they often run rather rich at low rpm. Particularly on motorcycles, this can lead to stumbling when pulling away. I 've had to put in smaller idle jets. There are a lot more 'aromatics' in modern fuel. You don't get a grey deposit in the exhaust (that was the le...

It has a individual cell low voltage cut off signal that I'm using to trigger the half-speed circuit on my Alltrax controller as a warning. This is set to 2.1V per cell, which is OK for most LiFePO4 cells, I think. This seems to be a common approach where the battery monitoring system has a digital...

If you're looking for a really lightweight solution how about using a Plettenberg Predator (http://www.plettenberg-motoren.com/UK/Motoren/aussen/Predator/motor.htm) Do please remember that these motors operate with a VERY LARGE supply of cooling air. 8Kw input power at 88% efficiency is nearly 1Kw ...

Not thinking about streamlining, but about the outrigger wheels.

The outriggers are retracted above walking pace.

Electric Ecomobile (www.paraves.ch) on track.

http://uk.youtube.com/watch?v=PYt_w8UKrH8

What a strange idea to be forced to offer your bike for sale. Are there any precedents for this in the racing world? Yes, it's been used quite a few times. It's to prevent factory teams entering budget limited privateer classes. Although I wouldn't mind myself, I can think of any number of reasons ...

I'm slimming down the contents of my workshop, so if anyone would like a nice Freccia to build into an EV like this one (now owned by Darren Scott)



Then let me know.

Jeremy, you really are thinking along unique lines. Your proposed machine is not much heavier than the battery packs that other teams think necessary! There is likely to be a minumum qualifying speed requirement. They are considering abandoning the 1956 FIM streamlining rules (there is a very fast e...