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#41
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Oh, I agree - the best of both worlds.
"wkearney99" > wrote in message ... >> They only use less fossil fuel during low speed city driving while >> on battery power, not during highway driving. During highway >> driving they use more fossil fuel than my diesel Jetta. > > Oh won't it be fun when someone makes a diesel hybrid. Seems like VW's > experience would come in handy. > |
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#42
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Brian Running wrote: > > Just for fun, a pig race across the USA: > > > > http://www.greencarcongress.com/2005..._bests_hy.html > > Wow. Neither one is a real knockout, mileage-wise. There's still a lot > to be said for light weight and aerodynamic efficiency. The irony is, that the more weight you have, the better hybrids work. So, if you start losing weight, the advantage of hybrid concept will fade away, because the only thing the hybrids do is saving the energy which otherwise would be lost in brakes. The fatter the car is, the more enegy can be saved. So, those fat and heavy SUVs should be the ultimate demostration of what is achievable. And you still get a 10% worse mileage as just a plain diesel. And the advantage in the city traffic is only marginally better (2% or so). The aerodynamics will favor both cars in the same way, but I do not expect anything significant, as the Cx is staying at the same level for the last 20 years. My old Audi 100 (known as 5000 in the USA) already has a Cx=0.3. Ok, we will see. |
#43
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#44
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Erik Dillenkofer wrote:
> Oh, I agree - the best of both worlds. > > "wkearney99" > wrote in message ... > >>>They only use less fossil fuel during low speed city driving while >>>on battery power, not during highway driving. During highway >>>driving they use more fossil fuel than my diesel Jetta. >> >>Oh won't it be fun when someone makes a diesel hybrid. Seems like VW's >>experience would come in handy. >> > > > The idea of diesel hybrids has actually been in use for a long time. Railroads have been using diesel locomotives for years that are actually powering electric motors (aka hybrids). It is only in the last few years that car companies have adopted this to passenger vehicles. *MYSTIC* |
#45
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Mystic wrote: > >>Oh won't it be fun when someone makes a diesel hybrid. Seems like VW's > >>experience would come in handy. > > > The idea of diesel hybrids has actually been in use for a long time. > Railroads have been using diesel locomotives for years that are actually > powering electric motors (aka hybrids). It is only in the last few years > that car companies have adopted this to passenger vehicles. But for a totally different reasons. A hybrid in the train is essentially nothing more as an (almost) ideal "gearbox". So, they do not need any clutch and start rolling using the maximum power your engine can produce. And it does not matter how much it weights, as locomotives actually need some serious weight to develop enough traction. |
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