Patent ID: 8731878
Filing Date: 2014-05-20
Classification: G01M

Abstract:
1. A method for predicting noise comfort performance corresponding to an acoustic level or vibratory level or both in a cabin of a vehicle with a body-shell and a suspension system linked to the body-shell by at least one point of attachment, the vehicle rolling at a given speed V on a rolling device that includes on its rolling surface at least one irregularity of a predetermined dimension, the method comprising: determining, using a computer, a global transfer function (T determining a global admittance (Y determining a global impedance (Z determining, while rolling, lockup loads (F combining together the global transfer function of the body-shell, the global admittance of the body-shell, the global impedance of the suspension system, and the lockup loads of the suspension system to obtain a prediction of a noise comfort performance (P) inside the cabin, wherein, to predict the noise comfort performance of the vehicle equipped with the suspension system, a formula of: P=T