Quote:
Originally Posted by andrew20195
This is basically the system BMW filed patents on. They separate the turbocharger into an exhaust turbine connected to a generator, and a centrifugal supercharger powered by an electric motor. The benefit of this is although you lose mechanical efficiency, you can change the characteristics of boost delivery separately from engine rpm.
And who says it has to run off the 12v automotive system? Hybrids already use separate high voltage circuits for the hybrid power system, and I know Subaru and Honda (and probably everyone else) use a separate high voltage system to drive the direct injection system.
I think the technology is almost there for commercial use of this type of system. I wouldn't be surprised to see it on a high performance BMW in a few years.
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I understood the Subaru system to be similar to this except they did say using the heat from the exhaust to generate electricity, not a turbine.