1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW15045 Window Regulator Efficiency Copyright 2011 General Motors Company All Rights Reserved June 2011 Originating Department: North American Engineering Standards Page 1 of 4 1 Scope Note: Nothing in this standard supercedes applicable laws and regu
2、lations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Purpose. To determine the window regulator efficiency. 1.2 Foreword. Not applicable. 1.3 Applicability. This procedure applies to all cable-drive regulator systems. 2 Re
3、ferences Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. None 3 Resources 3.1 Facilities. The regulator supplier is responsible for this test, which should be performed at suppliers facil
4、ities. 3.2 Equipment. 3.2.1 Window regulator mounting fixture used for regulator durability testing. 3.2.2 Torque wrench with a capacity of approximately 1.5 times the required torque specifications. 3.3 Test Vehicle/Test Piece. Prototype regulator which meets design intent. 3.4 Test Time. Calendar
5、time: 1 day Test hours: 1 hour Coordination hours: 2 hours 3.5 Test Required Information. Not applicable. 3.6 Personnel/Skills. Not applicable. 4 Procedure 4.1 Preparation. Remove motor from window regulator to expose the gear inside the cable drum. 4.2 Conditions. 4.2.1 Environmental Conditions. Te
6、st to be done at ambient at normal humidity. 4.2.2 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. Copyright General Motors Company Provided by IHS under licen
7、se with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15045 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 2 of 4 Figure 1: Regulator Diagram with Points A, B, and C Noted Note:
8、 Loading Positions A: Near Front Carrier, B: Middle between Front and Rear Carriers and C: Near Rear Carrier. 4.3 Instructions. Reference Figure 1. 4.3.1. Mount the regulator in a fixed rigid fixture. 4.3.2 Measure the length of AC. B is the middle point of AC. 4.3.3 Place various weights at positio
9、n A (W). 4.3.4 Use a torque wrench to move the weight up and record the required Torque (T). 4.3.5 Repeat Steps 4.3.3 and 4.3.4 with load placed in position B. 4.3.6 Repeat Steps 4.3.3 and 4.3.4 with load placed in position C. 4.3.7 Measure the drum Radius (r). 4.3.8 Use the equation in 5.1 to estim
10、ate regulator efficiency () for load with various magnitudes and at various locations. 5 Data 5.1 Calculations. The window regulator efficiency is estimated as: rTWWhere: = regulator efficiency W = weight T = torque r = radius 5.2 Interpretation of Results. Not applicable. 5.3 Test Documentation. Ap
11、pendix A Data Sheet A1 Calculation Results including the load, glass attachment location, and regulator efficiency shall be reported to the responsible GM Product Engineer and Validation Engineer. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for Resal
12、eNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15045 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 3 of 4 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not
13、propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Glass Guidance System: A hardwa
14、re subsystem of side-door, end-gate, or mid-gate, which controls the movement of window glass. Window Regulator: A hardware subsystem of glass guidance system, which provides the mechanism of glass movement. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shal
15、l be referenced in other documents, drawings, etc., as follows: Test to GMW15045 9 Release and Revisions This standard was originated in January 2006. It was first approved by the Global Glass Guidance SSLT in July 2006. It was first published in August 2006. Issue Publication Date Description (Orga
16、nization) 1 AUG 2006 Initial publication. 2 JUN 2011 Added sections 3.2.1 and 3.2.2 for testing equipment (torque wrench). (Global Glass Guidance SSLT) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted with
17、out license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15045 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 4 of 4 Appendix A Datasheet A1: Calculation Results Body Make Analyst Body Model and Year Activity Request No. Body Style CPE SDN WGN VAN Date DOOR Length AC
18、mm) Weight (N) Torque (Nm) Drum Radius (mm) Regulator Efficiency (%) Comments (Enter in where weights were placed for measurement.) AVERAGE EFFICIENCY Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
