GME 8712-2007 Fuel Supply.pdf

1、Test ProcedureRoad GME8712Fuel SupplyNote: This specification may be applied only for current projects incl. Global Epsilon (37#). It isSuperceded for all future projects and replaced by GMW14507, GMW14476; GMW14475 and GMW14474.1 IntroductionNote: Nothinginthisstandardsupersedesapplicablelaws and r

2、egulations.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 toevaluate fuel supply as follows:Dynamic Low Fuel PerformanceStatic Low Fuel PerformanceHot Fuel PerformanceCold Fuel Perf

3、ormance1.2 Foreword. Not applicable.1.3 Applicability. Gasoline and diesel passengercars.1.4 Definitions.Reserve Volume: Amount of usable fuel (platformspecific) remaining in tank after driver is audible orvisual warned the first time.Static Unusable Capacity: Volume of remainingfuel in tank after t

4、he fuel pump has drained all that itis able to drain. Fuel system is in design (curb mass)position for level ground and not moving.Dynamic Unusable Capacity: Volume of remain-ing fuel in tank after the fuel pump has drained allthat it is able to drain. Fuel system is in design (curbmass)positionforl

5、evel ground and moving. (Remain-ing amount of fuel may differ due to chosen vehicleoperation, see paragraph 4.3.3).Stall: The engine stops running or switch to emer-gency (Limp home) operating mode.2 ReferencesNote: Only the latest approved standards are appli-cable unless otherwise specified.2.1 Ex

6、ternal Standards/Specifications.EN 2282.2 GM Group Standards/Specifications. None.2.3 Additional References. None.3 Resources3.1 Facilities.3.1.1 General.3.1.1.1 Testing shall be performed at a facility freefrom ignition sources.3.1.1.2 If indoors, the test facility shall be an explo-sion proof room

7、 with adequate ventilation to meet alllocal safety regulations.3.1.2 Basic Test and Dynamic Low Fuel Perfor-mance.3.1.2.1 Spaciousfacilitywithacirculararea(diameter 60 m) and a high-speed course.3.1.2.2 Straightcourse(1 km length, 10 mwidth min.,turning points).3.1.2.3 Ride & handling course (3 km l

8、ength, wavywinding surface).3.1.3 Hot Fuel Performance. High speed courseand soak areas.3.1.4 Cold Fuel Performance. If required: Climaticchamber (0.-40) C3.2 Equipment.3.2.1 General.3.2.1.1 Equipment to drain and measure remainingfuel in tank.3.2.1.2 Equipment to measure feed- and return-flow(retur

9、n-flow not applicable for return-less system).3.2.1.3 Equipment to measure feed- and return-pres-sure (return-pressure not applicable for return-lesssystem).3.2.2 Basic Test and Cold Fuel Performance.Equipment to measure voltage, current, pressure,temperatures, engine speed and vehicle speed. Copyri

10、ght 2007 General Motors Corporation All Rights ReservedPublication Department: GME Specification CenterMay 2007 - Issue No. 2 Page 1 of 10PRD045 - VPRE ST 1 10/03GME8712 GM EUROPE ENGINEERING STANDARDS3.2.3 Dynamic Low Fuel Performance. Recoveryvehicle for towing the test vehicle or jerry can with a

11、known amount of fuel, to start engine after the enginehas stopped.3.2.4 Static Low Fuel Performance. Appropriatedevice to set vehicle on different grades.3.2.5 Hot Fuel Performance.3.2.5.1 Equipment to take and analyze fuel vaporpressure (gasoline only).3.2.5.2 Equipment to measure and record fuel t

12、em-perature.3.2.5.3 Equipment to measure and record enginespeed.3.2.5.4 Equipment to measure and record fuel pumpvoltage.3.3 Test Vehicle / Test Piece.3.3.1 A production intent vehicle, to be set to curbmass and specified height.3.3.2 A subsystem and fixture may be used for StaticLow Fuel Performanc

13、e. In this case the entire fuelsystem and other relevant components (e.g. fillerdoor, sheet metal, vapor canister) shall be includedin the set up.3.3.3 Fuel Types.3.3.3.1 Europe: EN 228 (containing entire range ofvapor pressure, relevant additives etc.)3.3.3.2 Other countries: Determine which fuel a

14、ndtemperatures to be used3.4 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 relevant testin paragraph 4.3.4.2.2 Test Conditions. Deviations fr

15、om 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 Basic Test. Temperature shall be between(0.+40) C.Install equipment at the interface between Powertrainand Produc

16、t Engineering (refer to correspondingPT-SSTS) to measure and record flow rate and pres-sure at feed- and return line (if applicable), currentvoltage at the fuel pump, voltage of battery, enginespeed and vehicle speed.a Start engine and idle vehicle while measuring.b Drive on the circular lapeach eng

17、inespeed ineachgear while measuring.c Accelerate vehicle at WOT (wide open throttle) tomaximum speed or as fast as possible.d Repeat c at +38 C, with summer fuel, half tankvolume, 40 km at 130 km/h followed by 20 min atmaximum speed and soak vehicle for 20 min. (Incase of deviation from +38 C ambien

18、t tempera-ture, adapt vapor pressure as described in para-graph 4.3.5).4.3.2 Cold Fuel Starting Performance. Installequipment at the interface between Powertrainand Product Engineering (ref. to correspondingPT-SSTS) to measure and record flow rate andpressure at feed an return line (if applicable),

19、currentvoltage at the fuel pump, voltage of battery.a Placethevehicle inaclimaticchamberuntilthefuelreach -10 C.b Try to start engine.c Measureand record time to reachsystem pressureand running engine.d Repeat a to c at ambient temperature of -20 C.e Repeat a to c at ambient temperature of -30 C.4.3

20、.3 Dynamic Low Fuel Performance.Note: Start each test with a suitable amount of fuel intank (platform specific). Ensure that chosen start vol-ume, correspondingto2lapsmin. aDurabilityCoursewithout the engine stalls.4.3.3.1 Highway Performance.a Drive at maximum speed or as fast as possible ona high

21、speed course until engine stalls.b When the engine stalls, record remaining amountof fuel in tank as High Speed Capacity.c Repeat a at alternating speed between(80.120) km/h.d When the engine stalls, record remaining amountof fuel in tank as Alternating Speed Capacity.4.3.3.2 Extra Urban Driving.a D

22、rive vehicle at a brisk pace and accelerations ona Durability Course (Dudenhofen or comparabletrack) until engine stalls. Copyright 2007 General Motors Corporation All Rights ReservedPage 2 of 10 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME8712b When the engine s

23、talls record remaining amountof fuel in tank as Brisk Pace Extra Urban DrivingCapacity.c Repeat a driving in a sporty manner, includingaccelerations, on a Handling/ Durability Course(Pferdsfeldor comparable track) until engine stalls.d When the engine stalls record remaining amountof fuel in tank as

24、 Enhanced Extra Urban DrivingCapacity.4.3.3.3 Simulated Expressway Ramp.a Drive vehicle on a circular area (radius: 20.8 m)counter-clockwise with a lateral acceleration of5.5 m/s2 for 40 s min. in 2nd gear, then acceleratewith wide-open throttle in a straight line up to100 km/h or as fast as possibl

25、e.b Stop vehicle for 60 s, to ensure that the pump mod-ule is completely filled.c Repeat a clockwise.d Record the amount of fuel as Simulated Express-way Ramp Capacity.4.3.4 Static Low Fuel Performance.4.3.4.1 First Start in Production in HorizontalPosition.a Startwith anemptytank,neverbeenincontact

26、withliquid (including lines and pump module and filter).b Determine potential fuel content of feed line andfilter and fill them (diesel without fuel pump only).c Fill tank with 1 l of fuel (see paragraph 4.3.4.2).d Start vehicle according to time specified in Manu-facturing Technical Specification (

27、MTS).e Idlethevehiclefor5min.Drive100mtoa20%grade and Idle for 2 min on the grade. Leave thegrade to a flat surface and idle for 2 additional minin horizontal position.f If test fails, continue adding fuel in steps of 1 l.g Record required amount of fuel as First StartCapacity.4.3.4.2 Low Fuel Perfo

28、rmance on Grade. The testshall be performed at 0 % (static unusable capacity),rear and front each 20 % and 30 % up. Also each side12 % up.Note: It is only required to check the most criticalpositions.a Start with 5 l into tankb Ensure a realistic distribution of fuel in tank by driv-ing the vehicle.

29、c Start vehicle, idle for 60 s (ensure MRA reservoir isfull) and place the vehicle at the 20 % grade.d Stop engine.e Wait 5 min with engine off.f Try to restart vehicle (3 trials max., each 100 kW), for 20 min or until fuel tem-peratures stabilize.c Drive for 12 km at a 12 % grade, maximum allowedto

30、wing capacity, 30 km/h and 1st gear (or 2nd gear,checking most critical speed but not 70 km/h).d Idle for 2 min.4.3.6.2 Continuous Conditions. The ambient tem-perature shall be +35 C.Note: The fuel temperature shall be increasedby1 C, for each C ambient temperature below+35 C (applicable for ambient

31、 temperature from(+25.+35) C).a Start with full tank (Customer Fill) and the vehiclein gross mass weight.b Drive for 30 min at 100 km/h in highest possiblegear.c Idle vehicle for 20 min.d “City-Traffic” schedule shall be performed (seeTable 1). Use 1st to3rd gear.e Idle vehicle for 25 min.f Drive fo

32、r 20 min at a 4 % grade, maximum allowedtowing capacity, 80 km/hon 3rd (engines 100 kW).g Idle vehicle for 20 min.h Drive at maximum speed or as fast as possible for20 min.i Soak 30 min.5 Data5.1 Calculations. If required.5.2 Interpretation of Results. To evaluate if resultsare in accordance with re

33、quirements in specification(SSTS).5.3 Test Documentation. Record pertinent testresults on the supplied data sheet. The results shallbe added to a test report with reference to this TestProcedure.6 SafetyThisstandardmayinvolvehazardousmaterials, oper-ations and equipment. This standard does not pro-p

34、oseto adressallthesafetyproblems associatedwithits use. It is 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,

35、drawings, VTS, CTS etc. as follows:Example: “Test to GME8712”8 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.

36、 Date Description (Org.)1 JUL 2005 First Release (ITDC, Saab)2 MAY 2007 set to Superseded (GME Engi-neering) Copyright 2007 General Motors Corporation All Rights ReservedPage 4 of 10 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME8712Appendix ATable 1: City Traffic

37、Schedule1 Start 1(12min) 5(32min) 3(49min)1. 0-70-0 17. 0 - 40 - 0 (30 s Idle) 33. 0 - 40 - 0 (30 s Idle) 49. 0-70-02. 0-70-0 18. 0 - 40 - 0 (30 s Idle) 34. 0 - 40 - 0 (30 s Idle) 50. 0-70-03. 0-70-0 19. 0 - 40 - 0 (30 s Idle) 35. 0 - 40 - 0 (30 s Idle) 51. 0-70-04. 0-70-0(30sIdle) 20. 0 - 40 - 0 (3

38、0 s Idle) 36. 0 - 40 - 0 (30 s Idle) 52. 0 - 70 - 0 (30 s Idle)2(3min) 2(17min) 6(37min) 4(52min)5. 0-70-0 21. 0 - 40 - 0 (30 s Idle) 37. 0 - 40 - 0 (30 s Idle) 53. 0-70-06. 0-70-0 22. 0 - 40 - 0 (30 s Idle) 38. 0 - 40 - 0 (30 s Idle) 54. 0-70-07. 0-70-0 23. 0 - 40 - 0 (30 s Idle) 39. 0 - 40 - 0 (30

39、 s Idle) 55. 0-70-08. 0-70-0(30sIdle) 24. 0 - 40 - 0 (120 s Idle) 40. 0 - 40 - 0 (120 s Idle) 56. 0 - 70 - 0 (30 s Idle)3(6min) 3(22min) 1(42min)9. 0-70-0 25. 0 - 40 - 0 (30 s Idle) 41. 0 - 70 - 010. 0-70-0 26. 0 - 40 - 0 (30 s Idle) 42. 0 - 70 - 011. 0-70-0 27. 0 - 40 - 0 (30 s Idle) 43. 0 - 70 - 0

40、12. 0 - 70 - 0 (30 s Idle) 28. 0 - 40 - 0 (120 s Idle) 44. 0 - 70 - 0 (30 s Idle)4(9min) 4(27min) 2(46min)13. 0-70-0 29. 0 - 40 - 0 (30 s Idle) 41. 0 - 70 - 014. 0-70-0 30. 0 - 40 - 0 (30 s Idle) 42. 0 - 70 - 015. 0-70-0 31. 0 - 40 - 0 (30 s Idle) 43. 0 - 70 - 016. 0 - 70 - 0 (30 s Idle) 32. 0 - 40

41、- 0 (120 s Idle) 44. 0 - 70 - 0 (30 s Idle) Copyright 2007 General Motors Corporation All Rights ReservedMay 2007 - Issue No. 2 Page 5 of 10PRD045 - VPRE ST U 10/03GME8712 GM EUROPE ENGINEERING STANDARDSAppendix B - Data SheetsDate Vehicle / Part No. .Engineer .4.3.1 Basic Test - On Proving GroundFu

42、el Flow Rate l/minFuel Pressure mbarTension Voltage Pump VCurrent Pump ATension Voltage Battery VEngine speed min-1Back Pressure mbar4.3.2 Cold Fuel Performance - On Proving GroundTemperatures -10 C -20 C -30 CTimetoreachsystempressureinsTime until engine runs in sEngine speed in min-1Flow-Rate in l

43、/minSystem Pressure in mbarTension Voltage Pump in VOn-board voltage in V Copyright 2007 General Motors Corporation All Rights ReservedPage 6 of 10 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME87124.3.3 Dynamic Low Fuel Performance - On Proving Groundl High SpeedH

44、ighway Performancel Alternating Speedl TouristyDurability Coursel Sportyl Counter-ClockwiseSimulated Expressway Ramp & LateralAcceleration l ClockwiseSinusoidal Operation l12 % Nose Up l12 % Nose Down l20 % Nose Up l20 % Nose Down l30 % Nose Up lHill Parking30 % Nose DownTest successful with:l Copyr

45、ight 2007 General Motors Corporation All Rights ReservedMay 2007 - Issue No. 2 Page 7 of 10PRD045 - VPRE ST U 10/03GME8712 GM EUROPE ENGINEERING STANDARDSDate Vehicle / Part No. .Engineer .4.3.4 Static Low Fuel Performance - On BenchFuel delivered in lFirst start in Horizontal PositionSuccessful Y/N

46、Reserve Volume (Start) in lStatic Unuseable CapacityStatic Unuseable Capacity in lTest Position 0% 30%rear up30%front up12%left up12%right upFuel delivered in lRestart Y/NLow Fuel Performance on Grade8minidleY/NTest Position 0% 12%rear up12%front up12%left up12%right upFuel delivered(Static Unuseabl

47、eCapacity & 5 l) in lRestart Y/NEmergency Refill5minidleY/N Copyright 2007 General Motors Corporation All Rights ReservedPage 8 of 10 Issue No. 2 - May 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME87124.3.5 Hot Fuel Performance - On Proving GroundVapor Lock Test (Gasoline only)Low

48、Vapor Pressure RunAmbient temperature in Ca) Fuel delivered in lStart 10 km 20 km 30 km 40 kmb) Fuel pressure in kPaAcceleration time (0.100) km/h in se)Acceleration time (100.130) km/h in sAcceleration time (0.100) km/h in sh)Acceleration time (100.130) km/h in sLow Vapor PressureAcceleration Time

49、in sHigh Vapor Pressure RunAmbient temperature in Ca) Fuel delivered in lStart 10 km 20 km 30 km 40 kmb) Fuel pressure in kPaAcceleration time (0.100) km/h in se)Acceleration time (100.130) km/h in sAcceleration time (0.100) km/h in sh)Acceleration time (100.130) km/h in sHigh Vapor PressureAcceleration Time in s Copyright 2007 General Motors Corporation All Rights ReservedMay 2007 - Issue No. 2 Page 9 of 10PRD045 - VPRE ST U 10/03GME8712 GM EUROPE ENGINEERING STANDARDSDate Vehicle / Part No. .Engineer .4.5 Hot Fuel Performance, Diesel Cooling (Diesel only) - On Proving G