1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW15115 Pneumatic Adjustable Seat Support Systems Performance Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 1 of 4 1 Scope Note: Nothing in this standard supercedes applicable laws and regulations. Note: In the event of co
2、nflict between the English and domestic language, the English language shall take precedence. 1.1 Purpose. This test procedure evaluates the operational characteristics of the pneumatic adjustable comfort features in so equipped seat system. 1.2 Foreword. Not applicable. 1.3 Applicability. This proc
3、edure applies to all seat systems with pneumatic adjustable comfort systems as provided in a seat as well as subsystems tested as a component. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. SAE J826 2.2 GM Stand
4、ards/Specifications. None 2.3 Additional References. Global Subsystem Technical Specification (GSSTS) 3 Resources 3.1 Facilities. An approved GM certified test lab with an adequate bedplate or equivalent work surface necessary for mounting the test sample and associated test fixtures appropriate for
5、 the procedure to be run. 3.1.1 Calibration. The test facilities and equipment shall be in good working order and shall have a valid calibration label. 3.1.2 Alternatives. Alternative test facilities and equipment may also be used. However, all measuring variables as specified in this standard shall
6、 be determined correctly with respect to their physical definition. 3.2 Equipment. 3.2.1 Mounting Fixture. A means to support the seat system including rigid mounting blocks, or equivalent, simulating the floor attachment points to mount the seat system in body position. 3.2.2 Temperature Controllin
7、g Device. Thermotron environmental chamber or equivalent. 3.2.3 Body Forms. Seat back and/or bottom form (SAE J826) - a form which represents the portion of the occupant body form that contacts the seat back and/or bottom when seated in the vehicle seat. Note: Calibrate all instrumentation as requir
8、ed. 3.3 Test Vehicle/Test Piece. An appropriate seat subsystem consisting of all components necessary to qualify as complete for the model and trim level specified by the Design Release Engineer (DRE) for seat complete testing, as well as subsystem testing of the components as specified by the Bill
9、of Material Family Owner (BFO). 3.4 Test Time. Not applicable. 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 GMW15115 Copyright 2013 Gener
10、al Motors Company All Rights Reserved August 2013 Page 2 of 4 3.5 Test Required Information. Not applicable. 3.6 Personnel/Skills. The following individuals are necessary to complete this test procedure: General Motors Design Release Engineer, General Motors Validation Engineer, Testing Organization
11、s Test Engineer, and a Testing Organizations Test Technician. 4 Procedure 4.1 Preparation. 4.1.1 Mounting. Mount the seat subsystem on the appropriate model mounting blocks. 4.1.2 Setup. There are two setups for this procedure and, therefore, other preparation information is integrated into the inst
12、ructions (see 4.3). 4.2 Conditions. 4.2.1 Environmental Conditions. Conduct at the temperature/environment specified in the Global Seat Subsystem Technical Specification, if no temperature exists, then default to the temperatures within the test procedure. 4.2.2 Test Conditions. Deviations from the
13、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 Seat Back Systems. 4.3.1.1 Fully deflate the seat and place in chamber. Adjust temperature to -20 C for and allow the seat t
14、o soak for 4 h, continue with 4.3.1.2 through 4.3.1.3. 4.3.1.2 Remove from chamber, recline the seat back fully rearward and rest the back form onto the seat back. 4.3.1.3 Inflate the lateral and/or lumbar support system and record the time and pressure for complete inflation. Allow the system to se
15、t at ambient for 8 h, measure the pressure and record. 4.3.1.4 Fully deflate the seat and place in chamber. Adjust temperature to 60 C and soak the seat for 4 h. 4.3.1.5 Remove from chamber and inflate the lateral and/or lumbar support system and record the time and pressure for complete inflation.
16、Allow the system to set at ambient for 8 h, measure the pressure and record. 4.3.1.6 Totally deflate the system, inflate the system and record time and pressure for complete inflation. 4.3.1.7 Allow the seat to sit at ambient condition for 8 h, record the pressure. 4.3.2 Seat Bottom Systems. 4.3.2.1
17、 Fully deflate the seat and place in chamber. Adjust temperature to -20 C for and allow the seat to soak for 4 h, continue with 4.3.2.2 and 4.3.2.3. 4.3.2.2 Remove from chamber and place the seat back in design back angle position and rest the bottom form onto the seat bottom (cushion). 4.3.2.3 Infl
18、ate the support system and record the time and pressure for complete inflation. Allow the system to set at ambient for 8 h, measure the pressure and record. 4.3.2.4 Fully deflate the seat and place in chamber. Adjust temperature to 60 C and soak the seat for 4 h. 4.3.2.5 Remove from chamber and infl
19、ate the support system and record the time and pressure for complete inflation. Allow the system to set at ambient for 8 h, measure the pressure and record. 4.3.2.6 Totally deflate the system, inflate the system and record time and pressure for complete inflation. 4.3.2.7 Allow the seat to sit at am
20、bient condition for 8 h, record the pressure. 4.3.3 Component/Subsystem Testing Outside of the Seat. 4.3.3.1 Mount the components in the position as expected in seat environment. 4.3.3.2 Fully deflate the system and place in chamber. Adjust temperature to -20 C for and allow the components to soak f
21、or 4 h, continue with 4.3.3.3 and 4.3.3.4. 4.3.3.3 Remove from chamber and place the seat back in design back angle position and rest the bottom form onto the seat bottom (cushion). 4.3.3.4 Inflate the support system and record the time and pressure for complete inflation. Allow the system to set at
22、 ambient for 8 h, measure the pressure and record. 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 GMW15115 Copyright 2013 General Motors Co
23、mpany All Rights Reserved August 2013 Page 3 of 4 4.3.3.5 Fully deflate the system and place in chamber. Adjust temperature to 60 C and soak the seat for 4 h. 4.3.3.6 Remove from chamber and inflate the support system and record the time and pressure for complete inflation. Allow the system to set a
24、t ambient for 8 h, measure the pressure and record. 4.3.3.7 Totally deflate the system, inflate the system and record time and pressure for complete inflation. 4.3.3.8 Allow the components to sit at ambient condition for 8 h, record the pressure. 4.3.3.9 Continue cycling in this manner until all cyc
25、les in the Component Technical Specification (CTS) are satisfied. 5 Data 5.1 Calculations. Not applicable. 5.2 Interpretation of Results. Not applicable. 5.3 Test Documentation. 5.3.1 Complete identification of the structural subsystem or the structural components (part number, lot number, etc.) 5.3
26、.2 Conditioning of test sample, if any. 5.3.3 Test conditions (temperature, humidity force applied, etc.) 5.3.4 Test results. 5.3.5 Observations and conclusions. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safet
27、y 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. Seat Back and/or Bottom Form: A form, which represents the port
28、ion of the occupant body form that contacts the seat back and/or bottom when seated in the vehicle seat. 7.2 Acronyms, Abbreviations, and Symbols. BFO Bill of Material Family Owner CTS Component Technical Specification DRE Design Release Engineer GSSTS Global Subsystem Technical Specification VTS Ve
29、hicle Technical Specification 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Test to GMW15115 Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without lic
30、ense from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW15115 Copyright 2013 General Motors Company All Rights Reserved August 2013 Page 4 of 4 9 Release and Revisions This standard was originated in February 2006. It was first approved by Interiors in January 2008. It was first published in Februar
31、y 2008. Issue Publication Date Description (Organization) 1 FEB 2008 Initial publication. 2 AUG 2013 5 Year Refresh. (Interior Seat GSSLT) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
