A Method for Quantifying Automobile Brake Creep Groan Intensity Based on Friction-Induced Vibration and Noise

Table 6

R² and adjusted R² of each objective evaluation index.

Objective index	R^2	Adjusted R^2
Q1	0.846	0.840
Q2	0.809	0.802
Q3	0.717	0.707
Q4	0.849	0.843
SPL(A)	0.817	0.810
Loudness	0.805	0.797
Roughness	0.417	0.396
Fluctuation	0.417	0.396