Hybrid Car – More Fun with Less Gas

Electric AC Compressor in Dixie - Page 13

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Posted by Al Falfa on May 22, 2011, 3:25 am
 
"Elmo P. Shagnasty"  wrote in message

In article


Go on, wacko, keep pretending that the hybrids are not "gassers".  They
all use gasoline as their sole source of energy.

What about when they have a strong tailwind?



Posted by Elmo P. Shagnasty on May 22, 2011, 11:08 am
 


Then so does every other car driving on the same road at the same time.

Posted by bwilson4web on May 22, 2011, 6:30 pm
 
All vehicles have a reduction in aerodynamic drag but the engine
effects are not linear:

gassers - as the power demand falls off, the throttle plate closes and
this leads to higher pumping losses. The engine has to expend more
energy to suck in air through the partially closed throttle plate. So
a tail wind causes ordinary gas engines to be less efficient although
it doesn't fall off as fast as the lower power saves fuel.

Prius - due to the Atkinson cycle, part of the fuel-air mix passes to
the next cylinder without having to go through the throttle plate. So
the engine efficiency is relatively flat. For the 1.5L engine, 65 mph
and below on a standard day gives 52 MPG sunrise to sunset. With a
tail wind, the Prius can travel faster and still stay in the 52 MPG
range or stay at the same ground speed and get much better than 52
MPG.

Bob Wilson

Posted by Al Falfa on May 20, 2011, 5:37 pm
 "Elmo P. Shagnasty"  wrote in message

In article


What differentiates a hybrid electric car, which uses gasoline as its
sole source of energy, from a "gasser"?

The ability to capture kinetic energy.



Posted by totfit on May 20, 2011, 10:21 pm
 On Fri, 20 May 2011 12:37:42 -0500, Al Falfa wrote:


He can look it up in a dictionary if he doesn't understand.

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