[ausev] Potential Regenerative Charging for DC Applications

[evehicle4me at hischopsticks.org]

Sounds like you need to talk to someone really smart!  For an off the  
shelf remedy you can go to:   
http://www.sprint-electric.com/prod3ph.html  I don't know how much  
they cost of if they have one that will handle as much juice as you  
need but if they don't I am sure they can send you in the right  
direction.

Will the alternator be able to generate enough electricity in those  
few seconds of braking to be worth while?  Are alternators designed  
well enough to absorb the intermittent and intense stress they will  
receive in a regen situation - even the speed?  Stay tuned to further  
episodes of AUSEV....same volt-time...same volt-station!





Quoting Wieser Scott <Scott.Wieser at irs.gov>:

> I would like some feedback on the following way to obtain regenerative
> charging in a DC application.  Google has yet to be helpful on this...
>
> I would like to use an ICE alternator to charge my battery pack.  I
> suggest using the NC switch on my throttle potentiometer to switch an
> alternator charging circuit on.  The sequence of operation would be when
> the driver completely lifts their foot off the throttle, (there is a
> "dead-band" prior to this point which allows for coasting), the
> alternator circuit would close and produce power to charge the battery
> pack.  Conversely, when the driver pressed down on the throttle, the
> alternator circuit would open and not impede acceleration.
>
> Currently my EV's front motor shaft drives the air conditioning
> compressor.  With a double-pulley, that shaft could drive the
> alternator.  I would like someone with electronic design expertise to
> please help me work out this electrical circuit; primary for the voltage
> step up to the 120V pack voltage and to ensure protection of the other
> devices this circuit or to explain why this would not work.
>
> What do y'all think?
>
> Scott
>
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