US 2015/0308926 A1 · VIBRATION ANALYSIS METHOD AND VIBRATION ANALYSIS DEVICE OF VEHICLE

Abstract

There is provided a vibration analysis technique using vibration measured while a vehicle is made to run on a real road, enabling the detection of vibration characteristics while distinguishing various vibrational input modes. In the inventive vibration analysis technique, a vehicle is made to run on a road surface whose height varies at various wavelengths along its movement, and using a vibration characteristic value in a site of a vehicle body measured during the vehicle running as a response variable and using at least two vibration input values causing the vibration characteristic value as explanatory variables, a transfer function of the vibration characteristic value for each of at least two vibration input values is computed as partial regression coefficients by multiple regression analysis.

Claims11

Dependent claims

A vibration analysis method of a vehicle, the method comprising steps of:

making the vehicle run on a road surface whose height varies at various wavelengths along a moving direction of the vehicle;
measuring a vibration characteristic value in a site of a vehicle body of the vehicle running on the road surface;
acquiring at least two vibration input values causing the vibration characteristic value in the site of the vehicle body;
and
computing a transfer function of the vibration characteristic value in the site of the vehicle body for each of the at least two vibration input values as a partial regression coefficient by multiple regression analysis using the vibration characteristic value in the site of the vehicle body as a response variable and using the at least two vibration input value as explanatory variables.

2 more elements

Dependencies are inferred from the claim text.

Vibration analysis method and vibration analysis device of vehicle

Life of this patent

Vibration analysis method and vibration analysis device of vehicle

Life of this patent

Abstract

Claims11