Steering Pump End-of-Line Quality Test -Noise and Abnormal Sounds

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Test Object:Steering Pumps

Application Scenario:End-of-Line Quality Test

Challenges:

As NEVs are relatively quiet, abnormal noise from the steering pump can be easily perceived by users, and is considered as a quality defect.

Method of Evaluation:

Noise and vibration test is conducted after the steering pumps are assembled, where SigMA assesses product quality by conducting spectrum and order analyses.

Figure 1: Steering pump under test

Figure 2: Results from the spectrum analysis