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phiwong t1_iy8ywx8 wrote

Reply to comment by EvolutionVII in ELI5:Why aren't ultracapacitors used more often as range extenders in Hybrids? by EvolutionVII

This is essentially the Chevy Volt from 12 years ago. An ICE to charge up batteries with no direct engine to wheel connection.

Constant RPM on an engine isn't going to increase the running efficiency so much that it offsets carrying 200kg of additional batteries ( or supercapacitors).

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Pocok5 t1_iy90a4l wrote

Plus the extra efficiency loss of mechanical-electric-mechanical conversion.

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