| 摘要 |
PURPOSE: A method for analyzing a vibration contribution level between vehicle components and a system thereof are provided to evaluate and analyze a vibration property for resolving a vibration problem by analyzing the vibration contribution level between the vehicle components of a GDI vehicle. CONSTITUTION: A mathematical operation processing computing device (130) receives vibration values measured by vibration sensors (VS1-VS7) attached to target components and surrounding components (SC1,SC2,SC3). The computing device calculates the power spectrum density of the vibration values. The computing device calculates a correlation of the power spectrum density to check a correlation degree of vibrations between the surrounding components. The computing device removes the correlation degree according to a multi-dimensional spectrum analyzing method to calculate a pure vibration contribution level for the target components. [Reference numerals] (110) GDI vehicle; (134) Unit for analyzing the vibration contribution level |
