Rob wrote:What type or vehicle;[concept]
So a purpose built vehicle rather than a conversion.
Weight [ 1100 kg + 450kg max load]
Top speed [120 km/h]
Cruise speed [50 km/h]
Acceleration [ not specificied yet]
Average range [150km minimum]
Not too outrageous. With the exception of the load capacity and range requirement my Scirocco conversion would do that. The load capacity appears quite high. Is this intended to be a delivery vehicle?
Battery capacity [ not speficied yet]
Peak current [not specified yet]
Weight (as low as possible, but not against any price]
Space available [limited]
Budget [4500 Euro for 1 EV]
That's barely enough for a good lead acid battery and management system!
motor : Azure AC24 DS5-82-30035, controller: Azure DMOC445, inverter....
...the alternative at Azure = 336V
I think you might be misinterpreting the specifications. The motor can be used at any voltage between 120 and 336 volt.
Costs is for as a big issue, but since EV stands or falls with its driving range I think Li Ion is maybe a better way
You've chosen quite an expensive drive system, which is going to constrict your budget elsewhere.
So I am looking for the costs of either NiMh or Li Ion battery sets, in order to set our strategy.
You're chasing a moving target. Lithium is not a mature technology and as I said before, there are very few complete solutions, you tend to have to do a lot of the work yourself.
If you build your POC (proof of concept) vehicle around lead acid, you'll side step a lot of problems and you can upgrade later. I've seen more than one project where the high capacity of Lithium was used as a crutch to give an inefficient vehicle design decent performance.