> I realize that providing current determines range
Not quite. Current gives you torque and torque provides acceleration.
> voltage equates to speed
It depends on the situation. Sometimes this happens. Not always. Voltage
is not the only factor influencing top speed. A motor and controller system
can be designed to give you almost any top speed from almost any voltage.
That's why I say the best way to design an EV is to start by determing what
battery will serve your needs, then design the rest of the drive system to
work with the battery.
> Since you have more batteries/lead, don't they provide more
> capacity and hence more range?
Again, there are various factors in play. But in general, lead is your
fuel; more of it gives you more range. You can get more lead by using more
batteries. You can also get more lead by using fewer batteries, but larger
ones.
Someone mentioned amp-hours as proportional to range. This isn't quite
right either, unless voltage is held constant. Range is influenced by Watt-
hours of energy storage.
David Roden - Akron, Ohio, USA
EVDL Administrator
= = = = = = = = = = = = = = = = = = = = = = = = = = = = =
EVDL Information:
http://www.evdl.org/help/= = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Note: mail sent to "evpost" or "etpost" addresses will not
reach me. To send a private message, please obtain my
email address from the webpage
http://www.evdl.org/help/ .
= = = = = = = = = = = = = = = = = = = = = = = = = = = = =
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
