Quote:
Originally Posted by neutron256
I like the idea of a charge-in-parallel / discharge-in-series system.
A few notes on you design:
-When the supercharger is in operation I'm pretty sure it will need to be electrically isolated from normal 12v/chassis-ground.
-DC solenoid relays of this size (36V / 200 Amp) as far as I can tell only come as single pole. I'll keep looking they may be out there. A different layout could uses lower voltage/current relays which come in STDT versions in parts of the circuit.
-Solenoid relays of this size are pretty expensive. So far what I've found start around $80 (x4 = $320) but better deals may be out there.
I hope you won't think I'm just criticizing. Overall I like the concept, I was trying to come up with my own but apparently my brain is only good for analyzing other people's designs at the moment.  |
it should be good to go with a common ground for the system, as long as everything uses the same ground in the entire system. I see nothing that could cause any issues, feel free to point one out if you see it. This gives the side benefit that if this setup would be the only batteries in the car as I would plan on, you still have a 12v hooked up at all times.
yes, relays and associated cost is an issue, but I feel this is offset by not needing a dedicated charger. The idea im currently looking at is using multiple smaller relays in the 40-50 amp range. Since resistance in the relay should increase with temperature, it should be safe to run a few in parallel. I need to do more research on this. Im spitting off a lot of ideas before I fully think them through, but atleast that allows group thinking. Dont hesitate to criticize, as long as we are being civil it can only help understanding.