Technology ConnectionsOct 9, 2023

An observation:

Many people seem to be under the impression that series hybrid drivetrains (where the ICE powerplant turns a generator which powers a motor) are superior to parallel hybrid (where the ICE can spin the wheels directly).

I think a lot of this comes from knowledge of diesel-electric locomotives, and trains are known to be efficient. But, in fact, those trains would be even more efficient if they could parallelize the diesel engine - that's just really hard, and isn't the point.

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@TechConnectify
There are trains that drive the wheels directly. I know that some have mentioned European trains. Another example, one that is North American and extremely odd, is the galloping goose. The engine is a regular automotive engine that, using the reduced friction offered by steel wheels, can power 4 wheels to haul everything up even the steepest grades. Many of the oldest engines still power the geese today despite age related losses. That's just how efficient trains are.
Oct 10, 2023 at 3:48amWeb
Show threadNot ApplicableOct 10, 2023
@TechConnectify In fact, the best way to power a vehicle with minimal losses would be to harness the electricity, ship it to the vehicle, and directly pipe it into a motor connected to the axle. The electricity can run through a wire to the vehicle and oh wait it's an electric tram. #RideTheTrain everyone.