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

Table 2

Subjective scoring standard for the annoying degree caused by creep groan.

Score	Subjective feeling	Description
1	Intolerable	All users consider it unacceptable, and the parts lose their function
2	Severe	All users consider it unacceptable, and the parts have serious defects
3	Very poor	All users consider it unacceptable, and the parts are defective
4	Poor	Ordinary users are dissatisfied
5	Marginal	Ordinary users are often annoyed
6	Barely acceptable	Critical users are often annoyed
7	Fair	Critical users are seldom annoyed
8	Good	Critical users are barely annoyed
9	Very good	Trained engineers are barely annoyed
10	Excellent	Trained engineers are not annoyed