奥迪全系自学手册（SSP）：ssp425_EcoFuel Natural Gas Drive en.pdf

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1、ServiceTrainingSelf-studyProgramme425EcoFuelNaturalGasDrivewith1.4l110kWTSIEngineDesignandFunctionAfterthesuccessfulapplicationoftheEcoFuelnaturalgasdriveintheTouranandCaddy,thistechnologyisnowalsobeingusedinthePassat,PassatEstateandTouran–forthefirsttimeinconjunctionwithaTSItwinchargerengine

2、.Fromanenvironmentalviewpoint,increaseduseofthistechnologyisworthwhilebecausetheemissionofharmfulexhaustgasesarereducedconsiderablycomparedwithpetroloperation,forexample,carbondioxide(CO2)by25%.ThePassatTSIEcoFuelwith7-speeddualclutchgearboxthereforeproducesjust119g/kmofCO2innaturalgasmode.Fu

3、rthermore,theexhaustgasesproducedinnaturalgasmodedonotcontainsulphur,sootorfinedust.S425_002Onthefollowingpages,wewillintroduceyoutothedesignandfunctionofthenaturalgasdriveinthePassatTSIEcoFuel.Youwillfindfurtherinformationonthetopicofnaturalgasinself-studyprogrammeno.262“Naturalgas–analterna

4、tivefuelformotorvehicles”andno.373“EcoFuelNaturalGasDriveinTouranundCaddy”.Theself-studyprogrammeportraystheForcurrenttesting,adjustmentandrepairdesignandfunctionofnewdevelopments!instructions,refertotherelevantserviceliterature.ImportantThecontentswillnotbeupdated.Note2ContentsIntroduction..

5、...................................................4ThePassatTSIEcoFuel.............................................4The1.4l110kWTSItwinchargerengine..............................6EngineComponents..............................................7Changestoenginecomponents.........................

6、............7NaturalGasDrive..............................................10ThePassatTSIEcoFuelnaturalgasdrive.............................10EngineManagement............................................12Systemoverview..................................................12EnginecontrolunitJ623...

7、.........................................14Sensors..........................................................16Actuators........................................................17Electronicgaspressureregulator...................................