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October 2008 Posts

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  The EVcast
Blog Entry

EVcast #93: Family Joules and Volvos

Friday, October 3rd 2008 @ 10:55 AM (not yet rated)    post viewed 2904 times

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  • The Family Joule
  • Pininfarina B0 (not to be confused with Bo)
  • Volvo ReCharge
  • Listener Feedback
  • Bo Invented Regenerative Breaking

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Comments

Darell Dickey
Free Access
Darelldd said on Friday, October 3rd 2008 @ 12:44 PM:

Interesting that folks still tend to link things like regenerative braking with hybrids. And while that tech obviously works with hybrids, it was developed for EVs, of course. I'd imagine that all the EVs that were "offered to the public" in 1996 had regenerative braking before the hybrids (Prius launched in 1997, right?). On top of that, the regen efficiency of the EVs is far higher for several reasons (larger battery, larger "generator"). As far as I know, the Rav4EV as the most efficient regen system ever on the market.

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John Briggs
Free Access
JohnBriggs said on Friday, October 3rd 2008 @ 2:16 PM:

Here we have a claim from

Electric and Hybrid Cars  By Curtis Darrel Anderson, Judy Anderson


In 1897 M. A. Darracq displayed his electric coupe in the Salon du Cycle show in Paris.  It was possibly the first vehicle to use a regenerative braking system.  When the brakes were applied, the kinetic energy was converted to electrical energy to charge the battery.


In the same book it says that Lohner-Porsche developed a hybrid in 1900, "although not the first with hybrid electric vehicles."   "The hybrid automobile was not cost effective for production and Porsche turned to gasoline-powered vehicles.
  So hybrid and regenerative braking have been around for a while.  However it would be interesting to know who built the first vehicle with more than, say, 500 cars.
  So do I win the pen?

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Paul Cummings
Free Access
PaulCummings said on Friday, October 3rd 2008 @ 10:56 PM:

The Pininfarina B0 fully electric hatchback can be see at:  http://www.pininfarina.com/index/storiaModelli/B0.html

Good phone feedback, by the way, from Josh at A/C Propulsion!

There is a Youtube video interview about the Volvo Recharge at:  http://www.youtube.com/watch?v=h5bhuI7Hduw
It contains some interesting info, like 4 motors, one in each wheel- so no transmission- which explains why it is not going to come to market until at least 2015- I seem to remember that putting motors in the wheels is a great idea, but not easily implemented.

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Luru said on Saturday, October 4th 2008 @ 5:26 AM:

Paul, I've read about others possibly putting electric motors on wheels and to me it seems like a maintence problem about to happen. Putting electric motors so close to the ground would seem to cause dirt,water,mud,potholes,road debris, etc. to test even the best of seals. Plus when you seal a motor against moisture you will run into the problem of cooling. Just a thought about implenmatation roadblocks.

John you win, good find

Darelldd--If Toyota  would just open the RAV4EV assembley line up with Prius prices they could sell millions. One would be in my inventory. 

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