That's sweet now maybe a SD can get 20 mpg city. I'm curious how strong/what type of an electric motor they will be using. i know electric motors have 100% torque @ 1 rpm but our trucks are heavy and a lot pull heavy. If its not done right i can see a lot of diesel guys moaning because they don't have the pulling power off the line.
You are correct, most locomotives are in fact a diesel motor, powering an electric motor. Why? They simplest reason is torque. With an electric motor you can dial down the speed rather than having to shift. Can you imagine shifting in a train?
That is obviously a very basic explanation, but that is the premise of the design.
And we thought the 6.0 was an over complicated electronic nightmare! Wait until you have to wait for the tech to graduate his night school electronics theory courses to repair your truck, when the early Raymond intellidrive 1 systems we were backed up 3 months just learning how to make the scr's live through the replacement process, then Steinbock went to a/c drives and it took an electronics engineering degree to simply troubleshoot regen braking problems and 1 fault code shut every thing down on all these systems! Now that being said and that I worked on these things for a living, as well as trained apprentice technicians to work on them, there is absolutely no way in heck I would buy one, the technologey to make it rugged enough for my pick-up is still 10 years out!