1、Test ProcedureRoad GME8713Fuel Tank Capacity and Fill PerformanceNote: This specification may be applied only for current projects incl. Global Epsilon (37#). It isSuperceded for all future projects and replaced by GMW14508 and GMW15198.1 IntroductionNote: Nothinginthisstandardsupersedesapplicablela
2、ws and regulations.Note: In the event of a conflict between the Germanand theEnglish language,the German language shalltake precedence.1.1 Purpose. The purpose of this specification is:to determine Tank Capacity Evaluationto evaluate Fill Behavior1.2 Foreword. Not applicable.1.3 Applicability. Gasol
3、ine and diesel passengercars.1.4 Definitions.Static Unusable Capacity: Volume of remainingfuel in tank after the fuel pump has drained all thatit is able to drain. Fuel system is in design (curbmass) position for level ground and not moving (seeGME8712).Specified Fuel Capacity: The amount of fuel th
4、atcan be filled into the tank (including fill hose (+25.45) C fuel in tank (1/3filled)c +50 C delivered fuel (first (4.10) l), then +30 Cdelivered fuel3.3.4.2 Winter Gasoline.a (0.+10) C delivered fuelb +10 C delivered fuel; (+5.+25) C fuel in tank (1/3filled)3.3.4.3 Summer Diesel.a (+10.+30) C deli
5、vered fuelb +30 C delivered fuel; (+25.+60) C fuel in tank(1/3 filled)3.3.4.4 Winter Diesel.a (0.+20) C delivered fuelb +5 C delivered fuel; (+5.+40) C fuel in tank (1/3filled)c +20 C delivered fuel3.3.5 First Fill.a +20 C delivered fuel3.3.6 Failed Shut Off Nozzle.a +20 C delivered fuel; +20 C fuel
6、 in tankFill Parameter Tolerances:Reid Vapor Pressure: 2.5 kPaFill Rate: 1 lTemperature: 1 C3.4 Test Time. Not applicable.3.5 Test Required Information. Not applicable.3.6 Personnel / Skills. Not applicable.4 Procedure4.1 Preparation. Not applicable.4.2 Conditions.4.2.1 Environmental Conditions. See
7、 relevant testaccording to paragraph 4.3.4.2.2 Test Conditions. Deviations from the require-ments of the test procedures shall have been agreedupon. Such requirements shall be specified on com-ponent drawings, test certificates, reports etc.4.3 Instructions.4.3.1 General Evaluation.4.3.1.1 For Tank
8、Capacity Evaluation the test shallbe performed at “6 oclock nozzle position” with flowrates defined in SSTS and temperatures defined inparagraph 3.3.4. Vehicle on a flat surface and underinclination of 6 % (left-, right-, front-, rear up).4.3.1.2 Customer Usable Fuel System Capacity isreached after
9、step e), with a flow-rate of 38 l/min at anambient temperature and fuel temperature of +20 Con a flat surface and at “6 oclock nozzle position”.4.3.1.3 ForFillBehaviorEvaluationthetestshallbeperformed at “4, 6 and 8 oclock nozzle position” (oras close to this in case of design limitations) with flow
10、rates defined in SSTS and temperatures defined inparagraph 3.3.4. Vehicle on a flat surface and underinclination of 6 % (left -, right -, front -, rear up).Overfill Prevention Rate: after last fill step (asdescribed above) continue filling until the fuel levelis up to the filler cup. The fuel shall
11、be kept 30 s atthis level by filling very slowly.a Drain the tank.b Insert nozzle (handle down) as far as possible.c Engage filler nozzle on fast fill rate. Wait for auto-matic shutoff.d Wait 10 s, engage nozzle on fast fill rate. Fuelnozzle still inserted as far as possible. Wait untilautomatic shu
12、toff occurs.e Wait 5 s, pull out nozzle one step. Engage nozzleon slow fill rate and wait for automatic shutoff.f Wait 5 s. Engage nozzle on slow fill rate and waitfor automatic shut off. Repeat step f three moretimes.g Repeat a to f lift up and hold the nozzle into thehand.4.3.2 First Fill. Step c
13、according to paragraph 4.3.1shall be performed with a tank that has never been incontact with fuel before.Note: For diesel vehicles the Test Procedure shallbe brought in line with the procedure at the end ofproduction line.4.3.3 Failed Shutoff Nozzle.a Drain tank until Static Unusable Capacity remai
14、ns. Copyright 2007 General Motors Corporation All Rights ReservedPage 2 of 8 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME8713b Insert failed shutoff nozzle (handle down) as far aspossible.c Engage nozzle on fast fill rate.d Wait for fuel spitting out of filler ne
15、ck or any otheropening of fuel system.4.3.4 Record. The following data (see paragraph4.3.1 to 4.3.3) shall be recorded.fuel tank pressureamount of fuel delivered after each fill stepnumber of premature shutoffskind of spitback occurred (rated according to para-graph 5.2.2)the amount of spitback occu
16、rredany other failuresthe amount of fuel delivered during the 30 s asOverfill Prevention Rate in l/minthe behavior of fuel system during Failed ShutoffNozzle - Test4.3.5 Ergonomics&NozzleEngagement (Accord-ing to GMN7000).Evaluate if ergonomic aspects are met wheninsert/extract of nozzle.Evaluate sa
17、fe and easy hooking of pistol in fill pipe.5 Data5.1 Calculations. If required.5.2 Interpretation of Results.5.2.1 To evaluate if results are in accordance withrequirements in specification (VTS and SSTS).5.2.2 Rating.5.2.2.1 Kind ofSpitbackOccurred atNozzle Shut-off.1= strong spitback up to arm of
18、customer2= strong spitback up to hand of customer3= wellover over side panel4= small droplets that reach hand of customer5= small droplets that do not reach hand of cus-tomer5.2.2.2 Kind of Spitback Occurred during FillingProcess.A= nozzle does not stop withinB= spits during filling5.3 Test Document
19、ation. Record pertinent testresults on data sheet. The results shall be added toa test report with reference to this Test Procedure.6 SafetyThisstandard mayinvolvehazardousmaterials, oper-ations and equipment. This standard does not pro-pose toadress allthesafetyproblemsassociatedwithits use. It is
20、the responsibility of user of this stan-dard to establish appropriate safety and health prac-tices and determine the applicability of regulatory lim-itations prior to use.7 Coding SystemThis standard shall be called up in other documents,drawings, VTS, CTS etc. as follows:Example: “Test to GME8713”8
21、 Release and Revisions8.1 Release. This standard was first approved andreleased on 18/JUL/2005.This document was first approved by Saab on18/JUL/2005.Content Owner: ITDC PE Thermal and Fuel Systems/ Saab Th&F Development8.2 Revisions.Rev. Date Description (Org.)1 JUL 2005 First Release (ITDC)2 MAY 2
22、007 set to Superseded (GME Engi-neering) Copyright 2007 General Motors Corporation All Rights ReservedMay 2007 - Issue No. 2 Page 3 of 8PRD045 - VPRE ST U 10/03GME8713 GM EUROPE ENGINEERING STANDARDSAppendixA-DataSheet1 Copyright 2007 General Motors Corporation All Rights ReservedPage 4 of 8 Issue N
23、o. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME8713DataSheet2 Copyright 2007 General Motors Corporation All Rights ReservedMay 2007 - Issue No. 2 Page 5 of 8PRD045 - VPRE ST U 10/03GME8713 GM EUROPE ENGINEERING STANDARDSDataSheet3 Copyright 2007 General Motors Corporation
24、All Rights ReservedPage 6 of 8 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME8713DataSheet4 Copyright 2007 General Motors Corporation All Rights ReservedMay 2007 - Issue No. 2 Page 7 of 8PRD045 - VPRE ST U 10/03GME8713 GM EUROPE ENGINEERING STANDARDSDataSheet5 Copyright 2007 General Motors Corporation All Rights ReservedPage 8 of 8 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03
