Forum Discussion
valhalla360
Jan 21, 2018Navigator
RCMAN46 wrote:ctilsie242 wrote:
When series hybrid vehicles become mainstream (basically electric cars with the IC engine acting as a generator), gas/diesel engines will definitely be taking a different tack for evolution, because they will need to run at a single RPM at all times, as opposed to worrying about power bands and torque/HP curves.
Nothing new here. The railroad industry has been doing this for close to 60 years.
Old news, the Prius uses just such an engine because the batteries address the heavy acceleration, so the engine design can focus on efficiency not acceleration.
Diesel-Electric trains are addressing a totally different issue. Trying to build a mechanical transmission to coordinate five 10,000hp engines pulling 100 cars is totally impractical. The electric motors are actually less efficient but solve the transmission problem in a reasonably sized package. A mechanical transmission in a passenger vehicle/light truck is already a proven and reliable technology, so there is no need to lose efficiency.
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