A Rapid Prediction and Analysis Method for Radiation Emission of Electric Vehicle Powertrain

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Abstract
Electromagnetic radiation emission assessment of the powertrain is of great significance for controlling the overall electromagnetic compatibility (EMC) performance of the electric vehicle. However, conventional electromagnetic radiation testing methods not only rely on expensive semi-anechoic chamber environments but also hard to identify the main path in complex systems. This paper proposes a transfer function method incorporating coupling effects among multiple paths. This method enables rapid and accurate prediction of radiated emissions within the 0.15 MHz to 30 MHz frequency range and identifies the primary radiation paths, thereby facilitating product radiation reduction.

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