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    SAE J 1312-1990 Procedure for Mapping Engine Performance - Spark Ignition and Compression Ignition Engines Standard 《标准火花点火和压缩点火发动机性能绘图步骤》.pdf

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    SAE J 1312-1990 Procedure for Mapping Engine Performance - Spark Ignition and Compression Ignition Engines Standard 《标准火花点火和压缩点火发动机性能绘图步骤》.pdf

    1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro

    2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT

    3、 ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1995 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ1312R

    4、EAF.JUN95Issued 1980-06Reaffirmed 1995-06Superseding J1312 JAN90PROCEDURE FOR MAPPING PERFORMANCESPARK IGNITION AND COMPRESSION IGNITION ENGINESForewordThis Reaffirmed Document has been changed only to reflect the new SAE Technical Standard BoardFormat.1. ScopeThe purpose of this SAE Standard is to

    5、provide a standardized test procedure for generating engineperformance maps. An engine performance map is a listing of engine fuel flow rates versus torque or powerobtained at specific engine speeds and loads. Engine performance maps as specified by this code can beused in fuel economy simulation pr

    6、ograms.This document is applicable to both four-stroke spark ignition (SI) and compression ignition (CI) engines,naturally aspirated and pressure charged, with or without charge air cooling.2. References 2.1 Applicable PublicationThe following publication forms a part of this specification to the ex

    7、tent specifiedherein. Unless otherwise indicated, the latest version of SAE publications shall apply.2.1.1 SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J1349Engine Power Test CodeSpark Ignition and Compression IgnitionNet Power Rating.3. Engine Equipment A

    8、 “fully equipped” engine is used for this test, in accordance with SAE J1349, Sections4.4 and 6. Please refer to SAE J1349 for specific equipment details.4. Power Corrections Measured engine torque or power levels and fuel flow rates must be corrected tostandard reference air and fuel supply test co

    9、nditions. The corrections are made in accordance with SAEJ1349, Sections 5 and 9 with the following exceptions:4.1 For CI engines, the correction procedure shall be used for both full and part load operation.4.2 Since no adequate part load correction procedure is documented for SI engines, no correc

    10、tions shall be madeto the measured data. Therefore, inlet air must be controlled to reference test conditions.SAE J1312 Reaffirmed JUN95-2-5. Test ProceduresThe test data for performance maps must be generated at specific engine speeds andloads. All other test procedures are conducted in accordance

    11、with SAE J1349, Section 7.5.1 Test data must be obtained at each of the following speeds:a. Rated or maximum speedb. Peak torque speedc. Idle speedd. Intermediate speedse. Optional speeds5.1.1 Rated (or maximum), peak torque and idle speeds are defined by the manufacturer.5.1.2 Intermediate speeds s

    12、hould be obtained at equal 10% increments of rated (or maximum) speed, (forexample, 90% of rated, 80% of rated, etc.). Intermediate speeds may be rounded to the nearest 100 rpm.Intermediate speeds falling within 100 rpm of any other required test speeds may be omitted.5.1.3 Optional speeds are any a

    13、dditional speeds deemed by the manufacturer as necessary to adequately definethe shape of the power curve or to simulate vehicle operational requirements.5.2 At each test speed, the engine shall be run at no less than five loads, one of which shall be full load. Specifictest load levels shall be det

    14、ermined by the engine manufacturer, based on the engines intended serviceoperating characteristics. This may include motoring (negative) load levels. If intended service operatingcharacteristics are not known, the engine shall be run at equally spaced load intervals (example 0%, 25%,50%, 75%, 100%).

    15、5.2.1 Data acquisition at certain speeds and loads may be subject to the capabilities of the test dynamometer. Insuch cases, these test points may be omitted from the map, at the manufacturers discretion, if it can beshown that vehicle operational requirements do not utilize these data.5.3 If engine

    16、 performance is affected by vehicle related hardware, it may be necessary to generate additional mapsto simulate specific operating conditions. Examples include individual vehicle restriction effects or enginecontrol devices based on torque converter position, gear ratio, vehicle speed, etc. When ad

    17、ditional maps arerun, each shall be clearly labeled with applicable test conditions or hardware.6. Presentation of Results6.1 Data shall be recorded for test documentation in accordance with SAE J1349, Section 8. Additional data maybe recorded at the manufacturers discretion.6.2 Engine data obtained

    18、 and required specifically for the performance map shall be tabulated in a formatacceptable for use by the vehicle simulation program. The sample format in Figure 1 may be used:SAE J1312 Reaffirmed JUN95-3-FIGURE 1SAMPLE FORMATPREPARED BY THE SAE POWER TEST CODE STANDARDS COMMITTEESAE J1312 Reaffirm

    19、ed JUN95RationaleNot applicable.Relationship of SAE Standard to ISO StandardNot applicable.ApplicationThe purpose of this SAE Standard is to provide a standardized test procedure for generatingengine performance maps. An engine performance map is a listing of engine fuel flow rates versustorque or p

    20、ower obtained at specific engine speeds and loads. Engine performance maps as specifiedby this code can be used in fuel economy simulation programs.This document is applicable to both four-stroke spark ignition (SI) and compression ignition (CI) engines,naturally aspirated and pressure charge, with or without charge air cooling.Reference SectionSAE J1349Engine Power Test CodeSpark Ignition and Compression IgnitionNet Power RatingDeveloped by the SAE Power Test Code Standards Committee


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