1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW14264 Subjective Rating Scale Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 1 of 12 1 Scope Note: Nothing in this standard supercedes applicable laws and regulations. Note: In the event of conflict between the English an
2、d domestic language, the English language shall take precedence. 1.1 Purpose. To provide a uniform scale for all types of subjective evaluations. 1.2 Foreword. Not applicable. 1.3 Applicability. This procedure is applicable to passenger cars and light duty trucks. 2 References Note: Only the latest
3、approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. None 3 Resources 3.1 Facilities. 3.1.1 Calibration. The test facilities and equipment shall be in good working order and shall have a valid calibration label. 3.
4、1.2 Alternatives. Alternative test facilities and equipment may also be used. However, all measuring variables as specified in this standard shall be determined correctly with respect to their physical definition. 3.2 Equipment. Not applicable. 3.3 Test Vehicle/Test Piece. Not applicable. 3.4 Test T
5、ime. Not applicable. 3.5 Test Required Information. Not applicable. 3.6 Personnel/Skills. Not applicable. 4 Procedure 4.1 Preparation. Not applicable. 4.2 Conditions. 4.2.1 Environmental Conditions. Not applicable. 4.2.2 Test Conditions. Deviations from the requirements of this standard shall have b
6、een agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. 4.3 Instructions. 4.3.1 Subjective Rating Scales. Subjective rating methods should be used only when state of the art or other circumstance precludes objective evaluation methods and/or meas
7、urements. The “0” section is to be used to indicate that a component is not functioning, not on the vehicle, etc., and, therefore, cannot be rated. Appendix A provides all of the scales on one page. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for Res
8、aleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 2 of 12 4.3.2 Performance Scale. Refer to Table 1 for the Performance scale to rate such items as ride, handl
9、ing, radio performance, and so on. 4.3.3 Disturbance Scale. Refer to Table 2 for the Disturbance section of the scale to rate such items as axle noise, shake, wind noise, and tire roughness. Trace means very infrequent and very minor. 4.3.4 Squeaks and Rattles Scale. Refer to Table 3 for the subject
10、ive rating scale for squeaks and rattles. 4.3.5 Fluid Leaks Scale. Refer to Table 4 the subjective rating scale for fluid leaks. Figures 1 to 9 are photographs of some subjective ratings for fluid leaks. Table 1: Performance Subjective Rating Scale Rating Performance 10 Excellent Best in class, stro
11、ngly recommend this feature to others. 9 Very good, most would recommend/compliment. 8 Good Acceptable for critical customers. Very few complaints. 7 Acceptable for most customers. Few complaints. 6 Fair Acceptable to some customers. Some complaints expected. 5 Barely acceptable. Increased number of
12、 complaints. 4 Poor Below par. Expect many customers to complain. 3 Perceived weak point of vehicle. Many complaints. 2 Bad Not acceptable to vast majority of customers. 1 Unacceptable. 0 Not applicable. (Component cannot be rated, not functioning, missing, etc.) Copyright General Motors Company Pro
13、vided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 3 of 12 Table 2: Disturbance Subjective Rati
14、ng Scale Rating Disturbance 10 None No disturbance. 9 Could be picked up by an expert looking for this problem. 8 Trace Noticeable by critical customers. Very infrequent and very minor. 7 Noticeable by all customers. Infrequent and minor. 6 Moderate Noticeable by all customers. Irritating for some.
15、5 Irritating. Some customers may ask for repair. 4 Annoying Very irritating. Most customers will ask for repair. 3 Quite prominent, some customers may seek urgent repair. 2 Severe Most customers seeking urgent or immediate repair. 1 Intolerable, unfit to operate. 0 Not applicable. (Component cannot
16、be rated, not functioning, missing, etc.) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All
17、 Rights Reserved August 2013 Page 4 of 12 Table 3: Squeaks and Rattles Subjective Rating Scale Rating Squeaks and Rattles 10 Not noticeable, even by trained auditor. 9 Noticeable only by trained evaluators. 8 Noticeable by critical customers. 7 Noticeable by all customers. 6 Rated disturbing by some
18、 customers. 5 Rated disturbing by all customers. 4 Rated as intolerable by critical customers. 3 Rated as intolerable by all customers. 2 Perceived as potential loss of vehicle function. 1 Perceived as a potential safety issue. 0 Not applicable. (Component cannot be rated, not functioning, missing,
19、etc.) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 5
20、of 12 Table 4: Fluid Leaks Subjective Rating Scale Rating Fluid Leaks 10 No leakage. 9 Dry film on part. 8 Wet deposit thin. 7 Wet deposit medium. 6 Wet deposit thick. 5 Wet deposit sags. 4 Wet deposit runs. 3 Fluid pools on parts. 2 Fluid drips onto other parts. 1 Fluid runs onto other parts. 0 Not
21、 applicable. (Component cannot be rated, not functioning, missing, etc.) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright
22、2013 General Motors Company All Rights Reserved August 2013 Page 6 of 12 Figure 1: Leak Rating of 9 (Dry Film on Part) Figure 2: Leak Rating of 8 (Thin Wet Deposit) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking p
23、ermitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 7 of 12 Figure 3: Leak Rating of 7 (Medium Wet Deposit) Figure 4: Leak Rating of 6 (Thick Wet Deposit) Copyright General Motors Company Provide
24、d by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 8 of 12 Figure 5: Leak Rating of 5 (Wet Deposit
25、That Sags) Figure 6: Leak Rating of 4 (Wet Deposit That Runs) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 Genera
26、l Motors Company All Rights Reserved August 2013 Page 9 of 12 Figure 7: Leak Rating of 3 (Fluid Pools on Parts) Figure 8: Leak Rating of 2 (Fluid Drips onto Other Parts) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or network
27、ing permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 10 of 12 Figure 9: Leak Rating of 1 (Fluid Runs onto Other Parts) 5 Data 5.1 Calculations. Not applicable. 5.2 Interpretation of Results.
28、Not applicable. 5.3 Test Documentation. Not applicable. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish app
29、ropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follow
30、s: Test to GMW14264 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Motors Company All Rights Reserved Augus
31、t 2013 Page 11 of 12 9 Release and Revisions This standard was originated in August 2005. It was first approved by the Global Standards Committee and the GMW Implementation Project Decision Panel in January 2006. It was first published in January 2006. Issue Publication Date Description (Organizatio
32、n) 1 JAN 2006 Initial publication. 2 AUG 2011 Five year refresh; Added scale for Squeaks and Rattles; Customer Complaint Level column removed; Added photos for leak ratings. (Global PG Durability Test Development Team) 3 AUG 2013 Added additional explanations for performance and disturbance ratings.
33、 (Global Proving Ground Durability Test Development Team) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14264 Copyright 2013 General Mo
34、tors Company All Rights Reserved August 2013 Page 12 of 12 Appendix A Figure A1: Performance, Disturbance, Squeaks and Rattles and Fluid Leaks Subjective Rating Scales Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
