款东风本田思域发动机燃油排放控制系统技术信息指南英文版可编辑.docx

款东风本田思域发动机燃油排放控制系统技术信息指南英文版可编辑.docx

《款东风本田思域发动机燃油排放控制系统技术信息指南英文版可编辑.docx》由会员分享，可在线阅读，更多相关《款东风本田思域发动机燃油排放控制系统技术信息指南英文版可编辑.docx（15页珍藏版）》请在冰豆网上搜索。

款东风本田思域发动机燃油排放控制系统技术信息指南英文版可编辑

2006款东风本田思域发动机燃油排放控制系统技术信息指南（英文版）

ScreenNumber3.1-1

Fuel&Emissions

Page1of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

ElectronicFuelandEmissionControlSystem-Overview

Theelectronicfuelandemissioncontrolsystemofthe2006Civic

Acceleratorpositionsensor

incorporatesthefollowingimprovements:

DBWEnhancedsystemperformance.Contributingfactorsareincreased

Massairflow

processingcapacityoftheCPU,higherROMcapacity,and

optimizedETCSconfigurationAdditionaltorquemanagementcontrolitemsforimumdriving

comfortandstabilitycontrol.Theseincludeabsorptionoftorque

differenceresultingfromVTEC'sswitchingtothedelayedintake

Intelligent

valveclosuremodeandcoordinationwiththevehiclestability

MAPsensorpowerIC

assistVSAcontrolHighlypreciseintakeairflowcontrol.MassairflowMAFisusedin

conjunctionwithasensorformanifoldabsolutepressureMAPin

ordertoimproveidlingoperationcontrol.

FI/DBW

Micro-UseofalinearairfuelLAFsensortogetherwithanO2sensor,

LAFsensor

computer

PRISMPredictionandIdentificationSlidingModecontrol

consistingofcylinder-by-cylinderfeedbackcontrol,andanMAF

andMAPcombinationformoreaccurateestimationofintake

airflow.Thissystemprovideshighlypreciseair/fuelcontrolforATmicrocomputer

O2sensor

betterfuelefficiencyaswellasloweremissionsImprovedexhausttemperaturemanagementcontrol.Thisconsists

ofenginefiringcontrolforquickenginewarm-upandconsequent

earlieractivationofthecatalyzerlocatedbelowtheexhaust

EGRvalve

manifold.ImprovedtemperatureestimationaccuracyoftheO2

sensorelementisanotherfactorpermittingearlierdeterminationofcatalyzeractivationExhaustgasrecirculationcontrolnotonlyforloweringtheexhausttemperature,butalsotakesincreasedadvantageofthe

stoichiometriczonebyimprovingfueleconomyandNOxreductionAdvancedtemperaturemanagementcontrolappliedtothecatalyzerbelowtheexhaustmanifoldOptimumlocationoftheECUintheenginecompartment.

Fuel&Emissions-12005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09ScreenNumber3.1-2

Fuel&Emissions

Page2of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

MisfireDetectionSystemThe2006Civic'smisfiredetectionsystemusesapulsarplatethat

issecuredwiththreeboltstoacrankshaftweightinsidethe

crankcase.Increasedinstallationaccuracyensuresthatallmisfire

patternsaredetectable.

Pulsarplateinstalledon

crankshaftweightSinceallmisfirepatternsaredetected,thecylindermostdamaging

fastenedwith3bolts

tothecatalyzercannowbeidentifiedanditsfuelsupplycut,thus

limitinganydamagetothecatalyzer.

ServiceTalksWhenthesystemdetectsamisfire,themalfunctionindicatorlight

MILflashesandthesupplyoffueltothemisfiringcylinderis

interrupteduntiltheignitionswitchisturnedOFFEvenafterrecoveryfromafailure,theMILcontinuesflashing,fuel

supplytothecylinderremainsinterrupted,andthecorresponding

transientDTCissetIfmisfiringrepeatedlyoccursinanotherdrivingcycle,theMIL

Crankanglesensor

continuouslyflashes,fuelsupplytothecylinderremains

installedonL/B

interrupteduntiltheignitionswitchisturnedOFF,andthe

correspondingDTCissetWhentheignitionswitchisreturnedtoONinthenextdrivingcycle,

theMILcomesonindicatingmisfiringhasoccurred,andthisstate

continuesuntiltheDTCiserasedIfnoothermisfireoccursafteratransientDTChasbeenset,the

DTCisautomaticallyerasedfromthememoryafterthenext80

drivingcycles.

Fuel&Emissions-22005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09ScreenNumber3.1-3

Fuel&Emissions

Page3of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

Two-Bed,Large-DiameterCatalyzerUsingLowerAmountof

PreciousMetalBelowExhaustManifoldThe2006Civicisequippedwithatwo-bedtypelarge-diameter

catalyzerusingloweramountofpreciousmetalbelowtheexhaust

manifold.Thecatalyzerisfittedjustbelowthecylinderhead

integratedexhaustmanifold.

Fuel&Emissions-32005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09ScreenNumber3.1-4

Fuel&Emissions

Page4of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

EGRSystem:

EGRGasesfromCatalyzer

OutletDirectlytoIntakeManifoldTheEGRsystememployedinthe2006Civic

takesEGRgasesfromthecatalyzeroutletand

leadsthemdirectlytotheEGRjointthatis

attachedtotheplasticintakemanifoldchamber

onthecylinderheadThissystemsolvesEGRclogged-passage

problems,improvestheemissionlevel,and

enhancesfueleconomy.

EGRJoint

Fuel&Emissions-42005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09ScreenNumber3.1-5

Fuel&Emissions

Page5of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

EGRPipeInstallationProcedure

1.Placethethermo-caseendoftheEGRpipeon

thethermo-casestuds.

2.LooselyfastenthepipeendusingtheM8flange

nuts.

3.Attachthecatalyzerendofthepipetothe

connectinglocationonthecatalyzerbyloosely

fasteningtheM8flangebolts,andthentighten

theboltstothespecifiedtorque.

4.Finally,tightentheM8flangenutsonthe

thermo-caseendofthepipetothespecified

torque.

ServiceTalksInordertocompensateforthedimensional

differenceinrelatedparts,theholesinthe

intakemanifoldendoftheEGRpipearemade

largerthanthoseinthecatalyzerendofthe

pipe.Forthisreason,itisveryimportantto

followtheproceduredescribedabovetoavoid

givingexcessivestresstotheEGRpipeIftheprocedureisnotfollowedexactly,

excessivetighteningstresswilloccurinthe

weldsofthepipe.Thiscouldresultincracks

andconsequentbreakageofthepipe.

Fuel&Emissions-52005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09ScreenNumber3.1-6

Fuel&Emissions

Page6of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

MAF:

MassAirFlowSensor

AirflowmetermainunitAhot-wiretypemassairflowsensorisinstalled

Temperature-compensatingresistor

betweentheaircleanerandtheintakemanifold

todetecttheintakeairvolumeThismassairflowmeterconsistsofaheat

BypassTointakepipe

elementandatemperature-compensating

flow

resistor.Theheatelementoperatestokeepa

Heatelement

constanttemperature.

Hotwire

MainflowAstheintakeairvolumepassingaroundthe

heatelementchanges,theresistanceofthe

elementchangesandthereforethecurrent

Hotwiremassairflowmeter

flowingthroughtheelementchanges.This

currentvalueismonitored.LargeThecurrentvalueisconvertedintovoltageand

usedassignalSignalvoltagechangesaccordingtothe

current.

Small

SmallIntakeairvolumeLarge

Outputproperty

Fuel&Emissions-62005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

SignaloutputcurrentScreenNumber3.1-7

Fuel&Emissions

Page7of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

IntakeAirflowandFuelControlby

MAF+MAP-Part1

ControlusingMAFdata

Three-wayCatalyticConverterMAFmakesitpossibletomeasureintakeairflowdirectly,which

Fuelamount

increasestheaccuracyoffuelamountcalculation.Expected

Masscalculation

Engine

resultsaremorepreciseair/fuelratiocontrolandloweredemission

accordingtoactual

AirFlow

intakeairflow

level.

FuelamountcorrectionControlusingonlyMAFdatawouldnotaccommodatetransient

coefficient

characteristicsofthethrottlevalveduringstartupandaccelerationControlusingonlyMAPsensoroutputswouldnotbesufficiently

accuratebecausethedataderivedfrombasicfuelinjection

ControlusingMAPsensordata

amountcalculation,VTCfuelcorrectionandEGRfuelcorrection

Differencesanderrors

involvesdifferencesanderrorsundertransientconditions.

includedunder

transientconditions

VTCfuel

VTCangle

correction

sensor

Basicfuel

MAP

amount

Engine

sensor

calculation

Fuelamountcorrection

EGRfuel

EGRliftcoefficient

amount

sensor

correction

Fuel&Emissions-72005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09

ProgrammingNotes

VoiceoverNarrator,Male2005HondaMotorCo.,Ltd.?

AllRightsReserved.

05/09/09Intake

airflow

ScreenNumber3.1-8

Fuel&Emissions

Page8of18

AUTOMOBILETECHNICALTRAININGKNOWLEDGEMODULE

2006CivicTechnicalInformationGuideFuel&Emissions

KnowledgeModule

IntakeAirflowandFuelControlby

MAF+MAP-Part2

Intakeairflowovershoots