1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW16734 Testing of OEM Dual Foot Controls for Auto School Cars Copyright 2011 General Motors Company All Rights Reserved December 2011 Originating Department: GME Specification Center Page 1 of 4 1 Scope Note: Nothing in this standard supercedes appli
2、cable laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Purpose. Durability test of dual foot controls being installed in the vehicle. 1.2 Foreword. Not applicable. 1.3 Applicability. Cross-carline. 2 Refer
3、ences 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. 3.1.1 Complete vehicle or front end with brake booster and vacuum system. 3.2 Equipment. 3.2.1 Count
4、ing device. 3.2.2 Load cell. 3.2.3 Operating device. 3.2.4 Brake booster. 3.2.5 Vacuum pump. 3.2.6 Measuring amplifier. 3.2.7 PC for data recording. 3.2.8 Control of load, distance and velocity. 3.3 Test Vehicle/Test Piece. Not applicable. 3.4 Test Time. Test hours: 50 h 3.5 Test Required Informatio
5、n. Not applicable. 3.6 Personnel/Skills. Not applicable. 4 Procedure 4.1 Preparation. Demounting of the co-driver seat to build in the auxiliary device to adapt the foot controls. 4.2 Conditions. 4.2.1 Environmental Conditions. The test shall be performed at an ambient temperature of (+23 5) C. Copy
6、right 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 GMW16734 Copyright 2011 General Motors Company All Rights Reserved December 2011 Page 2 of 4 4.2
7、.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. 4.3 Instructions. 4.3.1 Tightening torques and screw connections shall be checked before testing. 4.3.2 The
8、load application shall be done perpendicular to the adjusted pedals with free force application. The pedals must return from the lower position without force application through the cylinder connection. Test set up (see Appendix A, Figure A1 ). The brake assistance during the test shall be ensured b
9、y vacuum pump or similar. 4.3.3 Due to the different connections and pedal travels the clutch and the brake pedal shall be actuated in each case by a separate force application with control module. The outcome of this is an intended, multiple overlapping of the pedal travels during the test procedur
10、e. 4.3.4 The clutch pedal shall be actuated by the max. range towards the end stop. 4.3.5 Load application of 600 N onto the brake pedal. 4.3.6 Test frequency: (8 2) cycles/minute 4.3.7 Number of cycles: 30 000 4.3.8 One cycle = 1x load / 1 x unload 5 Data 5.1 Calculations. Not applicable. 5.2 Inter
11、pretation of Results. No loosening of the screw connections at the foot controls and body. Permanent deformations of the pedals and linkage system, as well as cracks at the screw-on body points, are not allowed. 5.3 Test Documentation. With reference to this Test Procedure the test results shall be
12、represented in a test report. 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 appropriate safety and health
13、 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 follows: Test to GMW16734 9 Rele
14、ase and Revisions This standard was originated in November 2011. It was first approved by Global Pedal GSSLT in December 2011. It was first published in December 2011. Issue Publication Date Description (Organization) 1 DEC 2011 Initial publication. Appendix A Figure A1: Set Up Inside The Vehicle Co
15、pyright 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 GMW16734 Copyright 2011 General Motors Company All Rights Reserved December 2011 Page 3 of 4 F
16、igure A2: Force Application at Foot Controls A Load cell with movable free force application to the brake pedal. 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 E
17、NGINEERING STANDARDS GMW16734 Copyright 2011 General Motors Company All Rights Reserved December 2011 Page 4 of 4 Figure A3: Test Set Up at Suspension Subframe A Rotating suspension of the air cylinder in return for the circular arc actuating the pedals. Figure A4: Test Set Up for Foot Controls for Auto Schools Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
