Notices
General Automotive Discuss all things automotive here other than the RX-8

Capacitor for EV/hybrid?

Thread Tools
 
Rate Thread
 
Old Aug 31, 2006 | 12:06 PM
  #1  
flomulgator's Avatar
Thread Starter
Registered User
 
Joined: Jun 2006
Posts: 267
Likes: 0
From: Seattle, WA
Capacitor for EV/hybrid?

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.
Reply
Old Aug 31, 2006 | 12:09 PM
  #2  
zoom44's Avatar
Administrator
 
Joined: Jul 2002
Posts: 21,958
Likes: 115
From: portland oregon
ive already seen this somewhere.........
Reply
Old Aug 31, 2006 | 12:10 PM
  #3  
Rootski's Avatar
DGAF
iTrader: (1)
 
Joined: Jan 2006
Posts: 1,953
Likes: 0
From: Austin, TX
....huh?
Reply
Old Aug 31, 2006 | 12:49 PM
  #4  
flomulgator's Avatar
Thread Starter
Registered User
 
Joined: Jun 2006
Posts: 267
Likes: 0
From: Seattle, WA
zom44, the idea or the implementation?
Reply
Old Aug 31, 2006 | 01:01 PM
  #5  
flomulgator's Avatar
Thread Starter
Registered User
 
Joined: Jun 2006
Posts: 267
Likes: 0
From: Seattle, WA
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

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!
Reply
Old Aug 31, 2006 | 02:12 PM
  #6  
zoom44's Avatar
Administrator
 
Joined: Jul 2002
Posts: 21,958
Likes: 115
From: portland oregon
i had seen the implementation before, cant remember where, and Ajax's article saves me digging time
Reply
Old Aug 31, 2006 | 07:01 PM
  #7  
Spin9k's Avatar
Momentum Keeps Me Going
 
Joined: Sep 2002
Posts: 5,036
Likes: 5
From: Colorado
Originally Posted by flomulgator
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 ! 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! I been working on that for some time....
Reply
Old Aug 31, 2006 | 07:15 PM
  #8  
flomulgator's Avatar
Thread Starter
Registered User
 
Joined: Jun 2006
Posts: 267
Likes: 0
From: Seattle, WA
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!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
alex zhuk
Series I Interior, Audio, and Electronics
11
Sep 11, 2009 12:24 PM
onyx8
RX-8 Parts For Sale/Wanted
3
Aug 20, 2009 07:34 AM
DOMINION
Series I Interior, Audio, and Electronics
13
Feb 11, 2008 09:14 PM
mrkinn
Series I Interior, Audio, and Electronics
22
Sep 28, 2005 05:24 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 04:05 AM.