Re: Dynamic brakes

[Bob Rice <"bobrice@snet.net"@snet.net>]

Bob MacDowell wrote:
> 
> So you build the system to be a dynamic brake; design it to direct all
> the energy into the brake resistor grids.  Then -- would it be possible
> to build an opportunistic regen controller into the brake grids, so that
> if it saw a useful voltage going into the resistor grids, it would divert
> an appropriate amount of it back into the batteries?   This would have one
> big advantage:  instead of your foot deciding the recharge rate of the
> batteries, the regen controller would decide the recharge rate.  And your
> foot - not the batteries - would decide the actual amount of braking.
> 
> Would all this work in an EV context?
> 
> -Bob

  You Bet!
 That would be the most elegent way to fly, even better than "Blended
Brake" as we call it on the RR. THAT'S done with a pressure transducer
on the air brake system, that provides dynanic, through a resister,
breaking, as well as air, blended seemlessly, into stopping a train.
Same idea, just a bit of logic programming, abnd it would be a good car
setup. It would get a workout here in CT, with all the hills you seem at
the bottom of all the time!

   Bob