Guru
Joined: 21/01/2012
Location: AustraliaPosts: 689
| Posted: 09:28pm 15 Oct 2012 |
Just a thought..or pipe dream..
I am wondering about a possible transitional ev
configuration, based on some info re "locking" automatics.
They are said to lock after a certain rpm, ie the fluid
drive is bypassed for more efficiency.
So it seems a coupled 3phase motor could "idle" at low
rpm - thereby driving the standard air con and most
accessories as normal - and still drive with efficiency at speed.
Once the 3phase motor is turning at few hundred rpm, it is
generating the needed control phases...if Basslink can
use DC and a 3phase transformer to feed the grid, and a
3phase motor is a rotating transformer, then some nifty
wiring/SCR's should be able to feed pulsed DC into the motor phases
once it is running (!!???) thereby saving an expensive
control box. (at the expense of motor/rotor rewiring of course).
A small dc motor would "start" the main 3phase motor rotating.
And you would get a satisfying "startup" very similar to everyday
cars and driving.
Probably fairly less efficient though. (edit) And a special
rotor/rewire probably not worth the expense. Pity.