Re: Regenerative Braking?

"Ron Wyckoff" <rwyckoff@xxxxxxxxxxxx> wrote in news:1141853023.258584.49280
@j52g2000cwj.googlegroups.com:

In the Prius, which is the best hybrid sys. out there right now,
regeneration works at up to 22KW down to 6mph. This provides for slow
deceleration, from 60 to 45mph in about 7 seconds. It's actually fairly
hard to keep from using friction brakes. On top of that overall
efficiency at 22KW is only about 37%.

Clearly there is plenty of improvement needed. We need at least 45KW
motor generator battery systems and hilgher efficiency super capacitors
to get total efficiencies above 50-60%. The batteries and caps that can
give this performance are in prototype stage now and we should be able
to get them in 2-3 years time.

What kind of volume will the caps take up? It's already hard enough to
shoehorn these battery tubs into the cars. Will there be room for the
capacitors?
.

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