关键词: 噪声, 优化, 频谱

Abstract: While electric vehicles bring quiet to people, the noise of the electric drive system is not shielded and becomes more prominent due to the absence of high noise broadband sources such as engines and turbochargers. It is particularly important to eliminate the abnormal noise of the electric drive system. In combination with the abnormal noise problem of the vehicle, a way of noise troubleshooting, locking the cause and solving the problem was provided. By optimizing the current waveform to eliminate the abnormal harmonic content, the abnormal noise problem was solved.

Key words: noise, optimization, spectrum