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Old 09-22-2024, 04:45 PM   #14 (permalink)
Logic
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Quote:
Originally Posted by redpoint5 View Post
Series hybrid might be the way to go with trucking, just as is done on trains. Next question then is at what weight or driving cycle is a series design better than parallel?
Ye that's a really good question!

The Koenigsegg Regera uses a torque converter with lock up to '7th gear' the wheels and a generator to drive 2 motors for pullaway and to top up a small 'regen battery'
it's a clever idea to get both (series parallel) and does pretty well for what it is, but it's not an eco car.
The numbers may still be worth looking at though. if one can find them.

Some numbers here at the end of the video, but this guy is more interested in making money on YouTube than actual engineering. And that's a good thing in his case IMHO

That's his latest vid. There are other vids.

Probably the best implementation with reduced lightened battery is the Obrist Tesla:
https://www.youtube.com/results?sear...=Obrist+Tesla+

Interesting engine too:
Damn good way to do a large cylinder offset with no vibration..!
Pity Obrist seems to consider that little nugget of information a state secret for some crazy reason... or... it hasn't occurred to him..!?

For those new to offset cylinders:
That's when the cylinders aren't directly above the crankshaft but offset to the side some so that the conrod is more vertical during the power stroke, giving less friction and more degrees of power stroke etc:

Last edited by Logic; 09-22-2024 at 04:51 PM..
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