GB/T 17692-1999 汽车用发动机净功率测试方法-检测标准-检测项目-北检院

标准中涉及的相关检测项目

《GB/T 17692-1999 汽车用发动机净功率测试方法》是针对汽车发动机净功率测试的标准文件，其中包括了一系列的检测项目和方法，涉及的产品主要是各种类型的汽车发动机。以下是该标准中的一些核心内容：

检测项目：

发动机的净功率测定
发动机的燃油消耗率测定
发动机的转速、扭矩测定
发动机的排放物测定（可能包括相关补充标准）

检测方法：

标准中对不同的检测项目采用了不同的测试方法，主要包括：

发动机台架试验法：在专门的发动机台架上进行测试，模拟车辆行驶状况。
用标准仪器测量发动机的输出功率、扭矩及其他性能参数。
燃油消耗率的测定通常采用卡尔曼滤波等数据处理技术。
应用专用的传感器和记录仪器捕获测试过程中的各类数据。

涉及产品：

本标准主要适用于各种类型的汽车发动机，包括：

内燃发动机：如汽油发动机、柴油发动机。
混合动力发动机：适用于有内燃部分的混合动力系统。
其他类型：如符合标准特进行净功率测定的特种车辆发动机。

实施这些检测项目和方法，可以确保发动机在其作业条件下提供可靠的性能数据，并为车辆的设计和改进提供科学依据。

GB/T 17692-1999 汽车用发动机净功率测试方法的基本信息

标准名：汽车用发动机净功率测试方法

标准号：GB/T 17692-1999

标准类别：国家标准(GB)

发布日期：1999-03-10

实施日期：2000-01-01

标准状态：现行

GB/T 17692-1999 汽车用发动机净功率测试方法的简介

本标准规定了汽车用发动机净功率测量方法。本标准适用于由制造厂提出M和N类汽车用发动机净功率相对于转速变化的曲线。本标准适用于往复活塞发动机(点燃式或压燃式)或转子发动机(点燃式或压燃式)，但不包括自由活塞发动机。GB/T17692-1999汽车用发动机净功率测试方法GB/T17692-1999

GB/T 17692-1999 汽车用发动机净功率测试方法的部分内容

NationalStandardofthePeople'sRepublicofChinaMeasurement Methods of NetPowerforAutomotiveEnginesGB/T 17692-1999

This standard stipulatesthemeasurementmethodsof netpowerforautomotiveenginesThis standard applies to representation of curve as a function of engine speed of the power at fullload indicated by the manufacturer for internal combustion engines intended for the propulsion ofmotor vehicles of categories M and NThis standard applies to reciprocating piston engines (positive-ignition or compression-ignition) orrotary piston engines (positive-ignition or compression-ignition), but excluding free pistonengines.

REFERENCE

The following standards contain provisions, which, through reference in this text, constituteprovisions of this standard. At time of publication the editions indicated were valid. All standardsare subject to revision, and parties to agreements based on this standard are encouraged tcinvestigatethe possibility ofapplying the most recent editions ofthe standards indicatedbelow.SH0041-1993AutomotiveUnleadedGasoline3.DEFINITIONS

For the purposes of this standard:3.1\Approval of an engine\means the approval of an engine type with regard to its net powermeasured in accordance with the procedure specified Annex C of this standard;3.2\Enginetype\means a categoryof an engine for installation in a motor vehicle which does notdiffer in such essential characteristics as those defined in Annex A to this standard;3.3 \Net Power\ means the power obtained on a test bench at the end of the crankshaft or itsequivalent at the corresponding engine speed with the auxiliaries listed in Table 1 of Annex C tothis standard, and determined under reference atmospheric conditions.4.TYPEAPPROVAL

If the power of the engine submitted for approval pursuant to this standard has been measuredaccordingto the specifications of paragraph 5 below, approval of the engine type shall begranted.

ApprovedbyNQTSBon1999-03-10

EnforcementDate:2000-01-01

5.SPECIFICATIONSANDTESTS

5.1General

GB/T17692-1999

The components liable to affect the power of the engine shall be so designed, constructed andassembled as to enable the engine in normal use, despitethe vibration towhich it maybesubjected,to complywith theprovisions of this standard.5.2Description of tests

5.2.I The net power test shall consist of a run at full throttle for positive-ignitionengines and at fixed full-load fuel injection pump setting for diesel engines, theengine being equipped as specified in Table l of Annex C to this standard.5.2.2Measurements shallbetakenata sufficientnumber(morethan8)of engine speedsto define correctly the power curve between the lowest and the highest engine speedsrecommended by the manufacturer. This range of speeds must include the speeds ofrevolution at which the engine produces its maximum power and its maximum torque.5.2.3 The fuel used shall be one available on the market.In any case of dispute,the fuel shall be one of the reference fuels defined by Annex E to this standard5.2.4Measurements shallbecarried outaccordingto theprovisionof AnnexCtothisstandard.

5.2.5 The test report shall contain the results and all the calculations requiredtofind the netpower, as listed in theAppendix CA to Annex Cto this standard togetherwith the characteristics of the engine listed in Annex A to this standard5.3Interpretationofresults

Thenet power indicatedby themanufacturer forthe type of engine shall be acceptedif it does not differ by more than +2% for maximum power and more than +4% at theother measurement points on the curve with a tolerance of + l.5% for engine speed,from the values measured by the technical service on the engine submitted for testing.6.CONFORMITY OF PRODUCTION

6.1 For verifying whether the engine products conform to the approved engine type,conformity production checks shall be carried out according to Annex D to thisstandard

GB/T17692-1999

ANNEXA

(Annex to this standard)

ESSENTIAL CHARACTERISTICS OF THE ENGINE AND INFORMATIONCONCERNING THE CONDUCT OF TESTS 1/Al.Description of engine

Al.1.Make

A1.2.Type

Al.3.Working principle:

positive-ignition/

two-stroke3/

Al.4. Bore

Al.5.Stroke

compression-ignition/

A 1.6.Number and layout of cylinders and firing orderAl.7. Cylinder capacity

Al.8.Compressionratio2/

A1.9.Drawings of combustion chamber and piston crownAl.10.Minimum cross-sectional area of inlet and outlet portsAl.1l.Cooling system:liquid/aircooling3/Al.il.1. Characteristics of liquid-cooling systemNature of liquid

four-stroke/

Circulatingpump:yes/no3/

Characteristics of make(s) and type(s) of the pumpDrive ratio

Thermostat: setting..

Radiator:drawing(s)or make(s)and type(s)Reliefvalve:pressuresetting:Fan: characteristics or make(s) and type(s)Fan drive system:

Fan cowl:

drive ratio:

A 1.ll.2. Characteristics of air-cooling systemBlower: characteristics or make(s) and type(s)..drive ratio:Air ducting (standard production):Temperatureregulatingsystem:yes/no 3/Brief descriptionGB/T 17692-1999

A 1.ll.3.Temperaturepermitted bythemanufactureAl.ll.3.1Liquid cooling:Maximumtemperature at engine outletAl.11.3.2 Air cooling:

Maximum temperature at reference pointA 1.1l.3.3Maximum charge air temperature at reference pointAl.1l.3.4Fuel temperature: min.Al.11.3.5 Lubricant temperature: min.max

A1.12Supercharger:yes/no 3/Description of thesystemA 1.13 Intake system

Intake manifold:

Air filter:..

Intake silencer

Description

Reference point

A2. Additional anti-pollution devices (if any, and if not covered by another heading)Description and diagrams.

A3. Air intake and fuel feedA3.l Description and diagrams of inlet pipes and their accessories (dash-pot, heatingdevice, additional air intakes, etc.)A3.2 Fuel feed

A3.2.1Bycarburetor(s)3/

A3.2.1.2 Type

A3.2. 1.3. 1

Adjustments2/

A3.2.1.3.2 Venturis

A3.2.1.3.3 Float-chamber levelA3.2.1.3.4 Mass of float

A3.2.1.3.5Float needle

A3.2.1.4Manual/automatic choke3/A3.2.1.5Feedpump

Pressure2/

Number

Curve of fuel delivery

plotted against air flow,

and settings required to keep to thecurve2/3/

Closure setting 2 /

orcharacteristicsdiagram2/

A3.2.2.Byfuel injection3/systemdescriptionWorkingprinciple:Intakemanifold/directinjectioninjectionprechamber/swirlchamber3/A3.2.2.1Fuelpump

A3.2.2.1.1 Make

A3.2.2.1.2Type

GB/T17692-1999

A3.2.2.1.3Delivery:mm3perstrokeatapumpspeedofrpm3/2/oralternatively,acharacteristicdiagram3/2calibration procedure:testbench/engine3/A3.2.2.1.4Injection timing

A3.2.2.1.5 Injection curve

Injector nozzle

Governor

A3.2.2.3.1 Make

A3.2.2.3.2Type

A3.2.2.3.3Cut-off point under load min-~A3.2.2.3.4Maximum speed without load min'A3.2.2.3.5 Idle speed

Cold start device

A3.2.2.4.1Make

A3.2.2.4.2Type

A3.2.2.4.3 System descriptionA3.2.2.5 Starting aid

A3.2.2.5.1Make

A3.2.2.5.2 Type

A3.2.2.5.3 System descriptionA4.Valve timing or equivalent dataA4.1 Maximum lift of valves, angles of opening and closing, or timing details of alternativedistributionsystems,inrelationtotopdeadcentreA4.2Referenceand/orsettingranges3/A5.Ignition

A5.1Ignitionsystemtype

A5.1.1Make

A5.1.2Type

A5.！.3Ignitionadvancecurve.2/A5.1.4Ignition timing2/

GB/T17692-1999

A5.1.5Contact-pointgap2/anddwell-angle2/3/A6. Exhaust system

Description and diagrams

A7.Lubrication system

A7.1Description of system

A7.11Positionof lubricant reservoirA7.1.2 Feed system(pump, injection into intake,mixing with fuel, etc.)A7.2Lubricatingpump3/

A7.2.1 Make

A7.2.2 type

A7.3Mixturewithfuel3/

A7.3.1Percentage

A7.40ilcooler:yes/no3/

A7.4. 1 Drawing(s) or make(s) and type(s)A8.Electricalequipment

Generator/alternator: 3/characteristics or make(s) and type(s)A9.Otherauxiliariesfittedontheengine(Enumeration andbrief descriptionifnecessary)Alo.Additional information on test conditionsA10.1Sparkingplugs

Al0.1.1 Make

A10.1.2Type

A10.1.3Spark-gapsetting

A10.2 Ignition coil

A10.2.1Make

A10.2.2 Type

A10.3Ignition condenser

A10.3.1Make

A10.3.2Type

GB/T17692-1999

Al0.4RadiointerferencesuppressionequipmentAl0.4.1Make

A10.4.2 Type

All.Engineperformance (declaredbymanufacturer)A11.1Idlerpm2/

A11.2RPM atmaximumpower2/

All.3 Maximum power-kw (according to paragraph 5.3 of this standard)Al1.4RPMatmaximumtorque2/

A11.5Maximumtorque2/

Notes:

1/In thecase ofnon-conventional engines and systems,particulars equivalent tothose referred to here shall be supplied by the manufacturer.2/Specifythetolerance.

3/Strikeoutwhatdoesnotapply.GB/T17692-1999

ANNEXB

(Annex to this standard)

TESTRESULTS REPORT

B 1.Tradename or mark of engine:B2.Engine type:

B3.Manufacturer's name and address:B4.If applicable,nameand address ofmanufacturer's representative:B5. Engine submitted for approval on:B6.Testinginstituteresponsibleforconductingapprovaltests:B7.Dateof reportissuedbythatinstitute:B8.Number of report issued by that institute:B9.Declaredfigures~

B10Maximumnetpower:

B 11 Maximum net torque:

B12.Essential characteristics oftheenginetype:Operating principle: four stroke/two stroke IL/Number and layout of cylinder:Cylindercapacity:

Fuelfeed:carburetor/indirectinjection/directinjectionl/Pressure-charge device: yes/No 1/Exhaust gas cleaningdevice:yes/No I/min-!

B 13.The documents filed with the request for approval or extension maybe obtained on request.Notes:

1/Strike out whatdoes not applyGB/T17692-1999

ANNEXC

(Annex to this standard)

METHODFORMEASURINGINTERNALCOMBUSTIONENGINENETPOWER

C 1.These provisions apply to the method for representing the power curve at full load of aninternal combustionengineasafunction ofenginespeed.C2.TEST CONDITIONS

C2.1The engine shall have been run-in according to themanufacturer's recommendations.C2.2If the power measurement can be carried out onlyon an enginewith the gear-boxmounted,theefficiencyofthegear-boxshall betaken intoaccount.C2.3 Auxiliaries

C2.3.1Auxiliariestobefitted

During the test, the auxiliaries necessary for the engine operation in the intended application (aslisted in table 1) shall be installed on the test bench as far as possible in the same position as in theintendedapplication.

C2.3.2AuxiliariestoberemovedCertain vehicle accessories necessary only foe operation of the vehicle and which may be mountedon the engine shall be removed for the test. The following non-exhaustive list is given as a sampleair compressorfor brakes

powersteeringcompressor

suspension compressor

air-conditioning system

Whereaccessories cannotberemoved,thepowertheyabsorb intheunloaded conditionmaybedetermined and added to themeasured enginepowerC2.3.3 Compression-ignition engine starting auxiliariesFor the auxiliaries used in starting compression-ignition engines, the two following cases shall beconsidered:

(a)electric starting.Agenerator isfitted and supplies,where necessary,the auxiliaries essential forengine operation;

(b) starting other than by electrical means.If there are any electrically operated accessoriesessential for engine operation for which a generator is fitted. Otherwise, it is removed.In either case, the system for producing and storing the energy necessary for starting is fitted andoperatesintheunloadedcondition.GB/T17692-1999

TABLE1

Auxilaries to be fitted forthetest todepartmentnetpower of engine(\Standard-production equipment\ means equipment by the manufacturer for a particular application)No

Auxiliaries

Intakessystem

Intakemanifold

CrankcaseemissioncontrolsystemAirfilter

Intakesilencer

Speedlimitingdevice

Induction heating device of intake manifoldExhaust system

Exhaust purifier

Exhaustmanifold

Supercharging device

Connecting pipes Ib/

SilencerIb/

Tail pipelb/

Exhaust brake2/

Fuel supply pump3/

Carburetor

Electroniccontrol system,airflowmeteretc.(iffitted)Pressure reducer

Evaporator

Fuel injection equipment (petrol and diesel)Prefilter

Filter

High pressure pipe

Injector

Airintakevalve4/iffitted

Electroniccontrolsystemair,flowmeter,etc.iffittedGovernor/control systems.

Automaticfull-loadstopforthecontrol rackdependingonatmospheric conditions

Fitted for net power test

Yes, standard production

equipment

Yes, standard production

equipment

Yes, standard production

equipment

Yes, standard production

equipment

Yes, standard production

equipment

Equipmentforgasengines

Yes, standard production

equipment

Liquid coolingequipment

Enginebonnet

Bonnet air outlet

radiator

Fan5/6/

Fancowl

Waterpump

Thermostat 7/

Aircooling

Blower5/6/

Temperature regulating deviceElectricalequipment

Supercharging equipment (if fitted)GB/T 17692-1999

Yes5/standardproductionequipmentYes, standard production equipmentYes,standard production equipmentYes,8/standardproductionequipmenCompressordriven eitherdirectlyby theengine, and/or by the exhaustgases

Charge air cooler9/

Coolantpumporfan(enginedriven)(iffitted)

Auxiliarytestbenchfan

Anti-pollutiondevice10/

Yes, standard production equipmentYes,ifnecessary

Yes, standard production equipmentla/.The completeintake system shall be fitted as provided for the intended application:wherethere is a riskof an appreciable effect on the enginepower;in the case of two-stroke and positive-ignition engines;whenthemanufacturerrequeststhat this shouldbedoneIn other cases, an equivalent system may be used and a check should be made to ascertain thatthe intake pressure does not differ by more than loo Pa from the limit specified by themanufacturer for a clean air filter.1b/

This complete exhaust system shall be fitted as provided for the intended application:where there isa risk of anappreciable effect on the engine power;in the case of two-stroke and positive-ignition engines;whenthemanufacturerrequeststhatthis beshoulddoneIn other cases, an equivalent system may be installed provided the pressure measured at theexit of the engine exhaust systemdoes not differ by more than looo Pa from that specified bythe manufacturer.

Theexit from the engine exhaust systemis definedas a point 15ommdownstream fromthe termination of the part of the exhaust system mounted on the engine.27

If an exhaust brake is incorporated in the engine, the throttle valve must be fixed in a fullopen position.

The fuel feed pressure may be adjusted, if necessary, to reproduce the pressure existing3/

in the particular engine application(particular when a\fuel return\ system is used).GB/T17692-1999

4/Theair intakevalveis the control valvefor thepneumatic governor oftheinjection pump.Thegovernorofthefuelinjectionequipmentmaycontainotherdevicesamount of injected fuel.

which may affect the

5/ The radiator, the fan, the water pump and the thermostat shall be located on the test bench inthe same relative positions as on the vehicle. The cooling liquid circulation shall be operated bythe engine water pump only.

Cooling of the liquid may be cowl be produced either by the engine radiator or by an externalcircuit, provided that the pressure loss of this circuit and the pressure at the pump inlet remainsubstantiallythe sameas those of theengine cooling system,The radiator shutter,if incorporated,shall be in the open position.Where the fan, radiator and cowl system cannot conveniently be fitted to the engine, the powerabsorbed by the fan when separately mounted in its correct position in relation to the radiator andcowl (if used),must bedetermined at the speeds correspondingto the engine speeds used formeasurement of the engine power either by calculation from standard characteristics or bypractical tests.This power, corrected to the standard atmospheric condition defined in paragraphC5.2, should be deducted from the corrected power.6/Where a disconnectable or progressive fan or blower is incorporated, the test shall be madewith the disconnectable fan (or blower) disconnected or with the progressive fan or blowerrunning atmaximum slip.

7/The thermostat maybe fixed in the fullyopen position.8/ Minimum power of the generator: the power of the generator shall be limited to that necessaryfor the operation of accessories which are indispensable for the operation of the engine. If theconnection of a battery is necessary,a fully charged battery in good order must be used.9/ Charge air cooled engines shall be tested with charge air cooling, whether liquid or air cooled,but if the engine manufacturer prefers, a test bench system may replace the air cooled cooler. Ineither case, the measurement of power at each speed shall be made with the same pressure dropand temperature drop of the engine air across the charge air cooler on the test bench system asthosespecified bythe manufacturerfor thesystem on the completevehicle.1o/Theymayinclude,forexample,EGRsystem,catalytic convertor,thermal reactor,secondary air supply system and fuel evaporation protecting system.c2.4Setting conditions

The setting condition for the test to determine the net power are indicated in table 2.TABLE 2-SETTING CONDITIONS

Setting of carburetor(s)

2Setting of injection pump delivery system3 Ignition or injection timing (timing curve)4Governor setting

5Emission control devices

C3.DATATOBERECORDED

In accordancewith the manufacturer'sproduction specifications and used withoutfurtheralteration fortheparticular applicationC3.1 Data to be recorded are those indicated in paragraph CA4 of the Appendix CA to this Annex.Performance data shall be obtained under stabilized operating conditions with an adequate freshair supply to the engine. Combustion chambers may contain deposits, but in limited quantity.Testconditions, such as inlet air temperature, shall be selected as near to reference conditions (seeparagraph C5.2 of this Annex) as possible in order to minimize the magnitude of the corectionfactor.

Exhaust gas recirculation.

现行

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检测范围包含《GB/T 17692-1999 汽车用发动机净功率测试方法》中适用范围中的所有样品。