| 摘要 |
A forced induction system for an engine comprising a compressor for increasing the pressure of gas into the engine and a turbine arranged to be driven by engine exhaust gas. The system further comprises a generator and an electric motor. The generator is arranged to be driven by the turbine and the motor is arranged to drive the compressor, wherein the generator and motor are electrically connected. The system comprises electrical control means arranged to receive the electrical signal output by said generator during operation and to apply an AC control signal to said electric motor whereby the compressor is driven at least in part by an output torque of the turbine via the electrical connection therebetween.
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