Hybrid Car – More Fun with Less Gas

APTERA VEHICLES - Page 3

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Posted by Jim Wilkins on March 4, 2009, 5:33 pm
 
On Mar 4, 11:44am, EskWI...@spamblock.panix.com wrote:

That's a good example, a small one-person vehicle with a suspension
meant for rough surfaces, although maybe not sharp-edged, wheel-
swallowing potholes. The only thing I've driven that handled being
airborne on a corner really well was a BMW set up for rallying. (The
Stearman doesn't count here).

Jim Wilkins

Posted by Neon John on March 4, 2009, 10:27 pm
 
wrote:


With the exception of the conspiracy theory (it was all out in the
open in the Federal Register that the big guys didn't want the
competition) you're about right.  The protectionist rhetoric was
couched in "safety" terms.  After all, nothing is off-limits when
"safety" is involved.

Most all of these NEVs can be speeded up one way or another.  Some
have a jumper as you described.  Others have to be programmed.  IMO,
and based on my experience with my CitiCar (an NEV-sized electric car
with a conventional title), anything incapable of 50 mph doesn't
belong on the streets, even city streets.  My citi could only do about
35 mph stock.  It became a rolling roadblock every time I took it out.
Voltage increase and a better motor got it up to 50+. Then it could go
along with traffic.  The ability to go 50+ implies that one can
accelerate with the gas vehicles in the 30-45 mph range and that is
what is important to avoid being a roadblock.

John

Posted by BobG on March 4, 2009, 10:35 pm
 
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What was the battery bank like in the 50+ verson? 48V? 96V? Amp hrs?
KW?

Posted by Neon John on March 4, 2009, 11:07 pm
 wrote:


The original pack was 48 volts, 220 amp-hours (golf cart batteries).
My pack is 72 volts at 220 amp-hours.  I had space for more batteries
but there wasn't an affordable controller available for >72 volts at
the time.

50 mph is spinning the motor at close to 10,000 RPM, far beyond its
design.  I kevlar banded the windings and the commutator to hold
things together but I'd not want to push things any farther.  Other
Citicar owners have exploded their motors by towing the car at 55 mph.

John

Posted by BobG on March 5, 2009, 2:18 am
 
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Cant you just put bigger tires on it?

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