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#31 |
Noisy Git
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Might want to check your figures on that one
![]() With diesel-electric like a submarine or a train or something as you suggest then you're using a generator and motor instead of a gearbox. I bet a gearbox is more efficient than that powertrain.
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#32 |
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I like the idea of a diesel bike, might not be the best for stright lines but you'd just ride the torque for the corners, that's where the fun is anyway, it'd probably be like going from a four pot to a twin????
Maybe??? Anyone? We were out with a 1965 series yesterday, but it was a petrol, he had a few problems when we went through some puddles, nearly come to a standstill a few times.
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#33 |
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Stretchie, thats what I think! Also, how good would it be offroad? Combined with the CVT aswell.
Feel free to come join me over here in Diesal Corner |
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#34 | |
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So the question of efficiency can be asked regarding just the power producing unit, considering that the way that power will be transmitted to the wheel can be the same on both motoring options. An electric engine has an efficiency of about 90%. A variable rpm internal combustion engine is somewhere around 50% (from what I know, diesels are more efficient that petrols). Now, a diesel running at a constant rpm i.e. a generator is far more efficient than its variable rpm counterpart because, essentially, the rpm can be kept at the efficiency peak of the engine. Transmitting current from a generator to a capacitor is without any loss of power (probably somewhere around 99% of what the generator produces reaches the capacitor). The only remaining problem would be losses within the capacitor itself, which I don't know how high they are, but I suspect not that high And the electric engine has, regarding power transmission to the wheel a clear advantage: it's small enough to actually put inside the wheel, and so power from it is transmitted directly, resulting in far less power loss. I've seen this done with this : http://www.e-traction.com/TheWheel.htm But this already brings to the table the gearbox, and I said I wouldn't do that |
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#35 |
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Hmm.. of course, the gearbox, if enough gears are available can be used to actually keep the engine within a certain interval of rpms.. But as real life shows, it's not used as such
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#36 | |
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#37 |
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Btw, found this on wiki : http://en.wikipedia.org/wiki/Hybrid_vehicle_drivetrain
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#38 | |
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#39 | |
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#40 |
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Actually, I think it needed 88mph
![]() Btw, there has been a "flux capacitor" proposal in 2008 by Dr. Leon Chua, in the sense that it operates as a function of the flux |
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