【摘要】 建立了电动汽车电机系统噪声声场模型,基于偏奇异值分析方法,通过进行电机系统噪声声场模型求解,计算修正信号的各阶偏奇异值进而识别主要声源。低速、低转矩工况下试验表明基于偏奇异值分析法确定的通道加权因子的噪声声场分析的主次更为分明。更多还原

【Abstract】 The model of the motor system noise for an electric vehicle was established,the calculation and identification of the main sound source by partial singular value analysis method,tests showed that partial singular value of primary and secondary analysis of noise field channel determined weighting factors analysis method based on more clearly under low speed and low torque condition.更多还原