Hey, PV1, have you bought your iMiEV yet?
At the Green Drive Expo there were two companies showing off their add-on plug-in battery packs for hybrids. Same concept certainly applies to EVs. Enginer's
is a 48v pack feeding a dc-dc converter feeding the HV traction pack. Plug-In Supply's
output voltage matches the vehicle's traction pack.
If this output is properly current-limited and diode-isolated and fed in at the motor controller battery connection while the battery pack and the vehicle are both turned on, I think that the iMiEV's BMS would simply treat this it like regeneration. No technical reason why this shouldn't work that I can think of. As well as plugging it in, one can recharge the auxiliary pack using solar.
Is the concept of an integrated onboard solar-recharged auxiliary battery pack time
, and weight
effective for our little iMiEV? You can do that analysis yourself, if you wish.