Note that the batteries in hybrid cars are charged by the good old
gasoline-powered engines and it takes a loss in the transformation of
engery. Hybrid technology is only about regenerative braking, which
saves just a little energy, at the expense of extra components. And
net gain in energy? Zero!!
You can clearly see that Prius used all the tricks in the book for
fuel efficiency, it has a small engine, very high compression ratio, a
minimal gross weight, and a streamline body. That's how it gets good
mpg. The electric components are not doing any good. They are there as
an excuse for making smaller and more efficient internal combustion
engines, which is very un-American... haha!!!
Plug-in hybrid is inconvenient, but it's honest. Hybrid is not just a
novelty, i would say it's a scam. Manufacturers are leading comsumers
into thinking that somehow the energy recovered from regenerative
braking can do any significant work. Strip the Prius off all of its
hybrid nonsense and it would do even better!
On Sun, 16 Mar 2008 16:35:05 -0700 (PDT), email@example.com wrote:
Hybrid vehicles are the most fuel efficient models in every category
where they are available. The improvement in fuel efficiency with the
best systems is very significant. Your criticism is that the
batteries don't suck energy out of the air. Well, no shit. Hybrids
save fuel. As far as I can tell, that is just as good as sucking
energy out of the air.
First of all, the smaller engine is possible because the electric
motor provides additional power to compensate. That is one of the
ways that the hybrid system saves fuel. The smaller engine operates
at more efficient power levels more of the time and it also saves some
Second: regenerative braking is meaningless unless you have a battery
to store the recovered energy and a motor to use it later. It is
analogous to saying you don't need that piston engine because all the
energy comes from gasoline.
Third: If you want to minimize gross weight, the place to start would
be that very heavy and supposedly worthless battery and motor. At a
curb weight of 2932 pounds, the Prius looks pretty heavy if you don't
consider the hybrid hardware. Minimizing weight hardly compensates
for carrying dead weight, so the hybrid system must be earning its
Fourth: Streamline body? Have you noticed that Prius gets better
mileage in the city than on the highway?
Fifth: If all of the above plus a compression ratio (13.0:1) were all
it took to get 40+ mpg, there would be all kinds of 40+ mpg cars out
there. But the only ones are hybrids. Even the Yaris can't touch the
Prius. That alone tell you something is going on here.
wt. Eng. Comp Aero mpg
Prius 2932 1.5L 13.0 : 1 ? 48/45
Yaris 2326 1.5L 10.5 : 1 ? 29/37
Civic Hy 2877 1.3 10.8 Identical 40/45
Civic 2690 1.8 10.5 Identical 25/36
Seems like those electrical components are doing something.
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