first of all, this post is spam....2nd, i think it can make for some good debate lol
Originally Posted by mambonumba1
Such an approach has worked very well for railway locomotives, but so far has not been scaled down for car use.
I don't think railway locomotives use diesel electric because of it's fuel efficiency or it's simplicity. Producing vairable speed AC motors with that kind of current draw is reasonably complicated. Do you have any idea how many gears a train would need to pull 3 miles of fully loaded rail cars using a traditional diesel engine with a standard transmission. That's a lot of double clutching! and it just wouldn't work, as the tounge on rail cars allow each car to move closer/farther from the car it is coupled to. Everytime you depressed the clutch the cars would move back and forth.....
Electric motors produce nearly 100% of their torque at any speed (as long as you can keep em cool) so this works very well for locomotoves.
as anyone who uses a generator for a couple days when the power is out at their house can tell you, an internal combustion motor coupled to a generator head is not very efficient at all.