View Full Version : Capacitor for EV/hybrid?


flomulgator
08-31-2006, 12:06 PM
Dear SMERT peoples,
Would it be possible to add a capacitor to an electric motor for either an EV or hypbrid vehicle (I realize EV vehicle is like saying ATM machine)? Obviously it would have to be slow-release and nowhere north of 200% of total output in order to make it usable in the mechanical sense. Probably more of a special battery/capacitor thingy (technical, huh?). Get where I'm going with this though? A turbo for the electric side of your hybrid!!!

And please, lets refer to this as a "Flux Capacitor" If it can be designed to run off trash all the better. :)

zoom44
08-31-2006, 12:09 PM
ive already seen this somewhere.........

Rootski
08-31-2006, 12:10 PM
....huh?

flomulgator
08-31-2006, 12:49 PM
zom44, the idea or the implementation?

flomulgator
08-31-2006, 01:01 PM
In a fortuitous happenstance, Ajax posted something about a hybrid cooper just now, and I found this while reading through an explanatory article

The QED uses a 350V, 11 Farad ultracapacitor to discharge the high current for acceleration and to accept the regen power back from braking. This protects the batteries from high current spikes - Greencarcongrees.com

Looks like my idea got developed in less than an hour! Good turnaround time I think....I'll have to give the boys down in R&D christmas off this year :mdrmed:

Oh, and 11 Farads is goddamn insane if I remember correctly. Most electronics capacitors are measured in microfarads I think. But I guess that's how you get 640hp!

zoom44
08-31-2006, 02:12 PM
i had seen the implementation before, cant remember where, and Ajax's article saves me digging time:)

Spin9k
08-31-2006, 07:01 PM
Oh, and 11 Farads is goddamn insane if I remember correctly. Most electronics capacitors are measured in microfarads I think. But I guess that's how you get 640hp!

11F @ 350V is a high voltage, but not much in the way of Farads. I wouldn't like to short it out however :eek: ! In my 8, I've got a 30F @20v capacitor hooked up across my battery simply as a voltage stabilizer.

On the other hand, I've also got two BatCap 400s sitting on my bench with a 200F @15V rating delivering 400amps for 8 seconds each. Now they do produce some power, like a battery, just much higher amperage for a short period of time because they store rather than produce energy from a chemical reaction. One 5lb BatCap will start the car slowly, two in parallel act just like a battery, I've started and run the car with those no problem.

Now to find the regenerative motor to replace the alternator with, power them from that, and add 50HP electrically! :yumyum: I been working on that for some time....

flomulgator
08-31-2006, 07:15 PM
Thanks for the info. I guess i'd never seen the non-electronics world of capacitors. It also said they had 4 of them in line. Isn't an alternator just a very tiny regenerative motor though? Could you just get a huge alternator from like a gas or diesel power generator and rig it up to your two capacitors then? I guess the problems then would be figuring out how to selectively and gradationally apply the regeneration, and of course, the electric motor needed to put the power to the crank. Damn cool that you're working on it thouh; best of luck to ya!