Hybrid Car – More Fun with Less Gas

Kenetic Energy Recovery System (KERS) in formula one - Page 2

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Posted by Tim Jackson on April 8, 2009, 8:40 am
stu wrote:

I think it would be really neat if it resulted in an economically
feasible small device that would simply store the car's momentum when I
have to stop, and return it to the car when I want to set off again
especially if it can do it promptly, while my diesel engine is still
scratching its arse, spinning up its turbocharger and acting surprised
that someone pressed the pedal.


Posted by William Wixon on April 8, 2009, 3:51 pm

2 or 3 years ago there was a thing in the newspaper on how UPS was modifying
their delivery trucks to be able to absorb energy from braking and reuse
that energy.  i can't remember now how they said it was going to be done.  i
think the article said it was best used on trucks that had to do LOTS of
starts and stops. haven't heard much about it since then, i wonder if they
ever even did it.  i just tried to do a google search for info about it,
couldn't find it specifically but came across this.  there seems to be lots
of info out there about this even more recent development.  "hydraulic


recently, when i see my mail lady go through i think to myself, there must
be some way for them to design that mail truck to save energy with ALL the
starting and stopping she's doing.  i guess the same would go for school
buses.  i wondered if an electric vehicle would be a good application for
the mail lady (relatively short routes, low speeds, lots of starting and
stopping) (maybe she'd even like how peppy it is, i've heard electric can be
quite peppy upon initiating acceleration)  i wondered if someday the USPS
would convert to an all electric fleet for rural mail delivery, i'm
imagining electric would be easier to reabsorb the energy from braking.

Posted by Rick Samuel on April 22, 2009, 3:31 am

 In '06 we finished a 5100lb carbon fiber flywheel for the FRA, (Federal
Railroad Auth) the flywheel was in a vacuum, hung by maglev, vertical.
Flywheel worked great, but many other problems.  Was on a gimbal mount, that
JUST fit into the freight locomotive.
 This was started in the mid '90's when it was thought that 135+mph rail
service was practical.  As time went on, the top mph was lowered.  So it
never did get into a loco for full testing.  Had regenerative breaking also.
Wish we could have done full testing.  A fun 10 years developing it.

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