TSXCFY11一階諧波發生在50%驅動模式和50%滑行模式，分別為0.34 μm 和 0.32 μm。與峰-峰TE類似，結果優于EV減速器要求的目標值，所有其他工況也滿足單諧波振幅的目標值。

通過對輸出級齒輪修形的傳動誤差分析可以看到：

(1) 在正驅和滑行工況下峰-峰TE值都較小。峰TE發生在50%驅動模式和50%滑行模式，分別為1.09 μm 和 1.12 μm，結果優于EV減速器要求的目標值。所有其他工況的峰-峰TE值也都優于目標值。

(2) 峰-峰TE可以分解到成分諧波(圖9顯示的前三階諧波)中。在所有的工況下，TE的主要貢獻是一階諧波并隨著諧波數目的增加而呈指數衰減。

TSXCFY11

一階諧波發生在50%驅動模式和50%滑行模式下，分別為0.50 μm 和 0.52 μm。與峰-峰TE類似，結果優于EV減速器要求的目標值，所有其他工況也滿足單諧波振幅的目標值。

6 試驗驗證  

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針對電驅橋NVH性能評價的方法通常是對齒輪的階次噪聲基于整車測試的數據進行分解，階次分解本質上是基于參考軸轉速的頻率分析[3]。整車技術規范一般要求電驅橋減速器齒輪嚙合階次噪聲低于整車Overall噪聲10 dB(A)以上，在試驗過程中振動傳感器及傳聲器布置位置。

TSXCFY11