ASTM D6837-2009a 7500 Standard Test Method for Measurement of Effects of Automotive Engine Oils on Fuel Economy of Passenger Cars and Light-Duty Trucks in Sequence VIB Spark Igniti.pdf
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1、Designation: D6837 09aStandard Test Method forMeasurement of Effects of Automotive Engine Oils on FuelEconomy of Passenger Cars and Light-Duty Trucks inSequence VIB Spark Ignition Engine1, 2This standard is issued under the fixed designation D6837; the number immediately following the designation in
2、dicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThe test method described in this standa
3、rd can be used by any properly equipped laboratory, withoutoutside assistance. However, the ASTM Test Monitoring Center (TMC)3provides reference oils andassessment of the test results obtained on those oils by the laboratory (see Annex A1). By this means,the laboratory will know whether their use of
4、 the test method gives results statistically similar to thoseobtained by other laboratories. Furthermore, various agencies require that a laboratory utilize the TMCservices in seeking qualification of oils against specifications. For example, the American PetroleumInstitute (API) imposes such a requ
5、irement, in connection with several U.S. Army engine lubricatingoil specifications.Accordingly, this test method is written for use by laboratories, which utilize the TMC services.Laboratories that choose not to use those services may simply ignore those portions of the test methodthat refer to the
6、TMC.This test method may be modified by means of Information Letters issued by the TMC. In addition,the TMC may issue supplementary memoranda related to the test method. Users of this test methodshall contact the TMC, Attention: Administrator, to obtain the most recent of these.1. Scope1.1 This test
7、 method covers an engine test procedure for themeasurement of the effects of automotive engine oils on thefuel economy of passenger cars and light-duty trucks withgross vehicle weight of 3856 kg or less. The tests are conductedon a dynamometer test stand using a specified spark-ignitionengine with a
8、 displacement of 4.6-L. It applies to multiviscos-ity grade oils used in these applications.1.2 This test method also provides for the running of anabbreviated length test that is referred to as the VIBSJ. Theprocedure for VIBSJ is identical to the Sequence VIB with theexception of the items specifi
9、cally listed in Annex A13. Theprocedure modifications listed in Annex A13 refer to thecorresponding section of the Sequence VIB test method.1.3 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3.1 ExceptionsWhere there is no di
10、rect SI equivalentsuch as screw threads, National Pipe Threads/diameters, tubingsize, or single source supply equipment specifications. BrakeSpecific Fuel Consumption is measured in kilograms perkilowatthour. In Figs. A2.4, A2.5, and A2.8, inch-pound unitsare to be regarded as standard.1.4 This stan
11、dard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.5 This test method is arra
12、nged as follows:Subject SectionIntroductionScope 1Referenced Documents 2Terminology 3Summary of Test Method 4Significance and Use 5Apparatus 61This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.B0.0
13、1 on Passenger Car Engine Oils.Current edition approved Oct. 1, 2009. Published November 2009. Originallyapproved in 2002. Last previous edition approved in 2009 as D683709. DOI:10.1520/D6837-09a.2The multi-cylinder engine test sequences were originally developed in 1956 byanASTM Committee D02 group
14、. Subsequently, the procedures were published in anASTM special technical publication. The Sequence VIB was published as ResearchReport D02-1469 dated April 8, 1999.3ASTM Test Monitoring Center, 6555 PennAvenue, Pittsburgh, PA15206-4489.For other information, refer to Research Report D02-1469, Seque
15、nce VIB TestDevelopment. This research report and this test method are supplemented byInformation Letters and Memoranda issued by the ASTM TMC. This editionincorporates revisions in all Information Letters through No. 081.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Consho
16、hocken, PA 19428-2959, United States.Subject SectionGeneral 6.1Test Engine Configuration 6.2Laboratory Ambient Conditions 6.3Engine Speed and Torque Control 6.4Dynamometer 6.4.1Dynamometer Torque 6.4.2Engine Cooling System 6.5External Oil System 6.6Fuel System 6.7Fuel Flow Measurement 6.7.2Fuel Temp
17、erature and Pressure Control tothe Fuel Flowmeter6.7.3Fuel Temperature and Pressure Control toEngine Fuel Rail6.7.4Fuel Supply Pumps 6.7.5Fuel Filtering 6.7.6Engine Intake Air Supply 6.8Intake Air Humidity 6.8.1Intake Air Filtration 6.8.2Intake Air Pressure Relief 6.8.3Temperature Measurement 6.9The
18、rmocouple Location 6.9.5AFR Determination 6.10Exhaust and Exhaust Back Pressure Systems 6.11Exhaust Manifolds 6.11.1Laboratory Exhaust System 6.11.2Exhaust Back Pressure 6.11.3Pressure Measurement and Pressure SensorLocations6.12Engine Oil 6.12.2Fuel to Fuel Flowmeter 6.12.3Fuel to Engine Fuel Rail
19、6.12.4Exhaust Back Pressure 6.12.5Intake Air 6.12.6Intake Manifold Vacuum/Absolute Pressure 6.12.7Coolant Flow Differential Pressure 6.12.8Crankcase Pressure 6.12.9Engine Hardware and Related Apparatus 6.13Test Engine Configuration 6.13.1ECM/EEC (Engine Control) Module 6.13.2Thermostat/Orifice Plate
20、 6.13.3Intake Manifold 6.13.4Flywheel 6.13.5Wiring Harnesses 6.13.6EGR Block-Off Plate 6.13.7Oil Pan 6.13.8Oil Pump Screen and Pickup Tube 6.13.9Idle Speed Control Solenoid (ISC) Block-OffPlate6.13.10Engine Water Pump 6.13.11Thermostat Housing 6.13.12Oil Filter Adapter 6.13.13Fuel Rail 6.13.14Miscel
21、laneous Apparatus Related to EngineOperation6.14Timing Light 6.14.1Reagents and Materials 7Engine Oil 7.1Test Fuel 7.2Engine Coolant 7.3Cleaning Materials 7.4Preparation of Apparatus 8Test Stand Preparation 8.2Engine Preparation 9Cleaning of Engine Parts 9.2Engine Assembly Procedure 9.3General Assem
22、bly Instructions 9.3.1Bolt Torque Specifications 9.3.2Sealing Compounds 9.3.3Harmonic Balancer 9.3.5Oil Pan 9.3.6Intake Manifold 9.3.7Camshaft Covers 9.3.8Thermostat 9.3.9Thermostat Housing 9.3.10Coolant Inlet 9.3.11Oil Filter Adapter 9.3.12Subject SectionDipstick Tube 9.3.13Water Pump 9.3.14Sensors
23、, Switches, Valves, and Positioners 9.3.15Ignition System 9.3.16Fuel Injection System 9.3.17Intake Air System 9.3.18Engine Management System (Spark and FuelControl)9.3.19Accessory Drive Units 9.3.20Exhaust Manifolds 9.3.21Engine Flywheel and Guards 9.3.22Lifting of Assembled Engines 9.3.23Engine Mou
24、nts 9.3.24Calibration 10Stand/Engine Calibration 10.1Procedure 10.1.1Reporting of Reference Results 10.1.2Analysis of Reference/Calibration Oils 10.1.3Instrument Calibration 10.2Engine Torque Measurement System 10.2.1Fuel Flow Measurement System 10.2.2Coolant Flow Measurement System 10.2.3Thermocoup
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