Diagnostic method for vehicle evaporative emissions

A method of monitoring evaporative emissions of a vehicle includes the steps of establishing a baseline pressure within a vehicle evaporative emission system during the occurrence of a vehicle-off condition, detecting a change in the baseline pressure during the vehicle-off condition, and indicating...

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Bibliographische Detailangaben
Hauptverfasser:	KAISER JEFFREY, LEHMEN ALLEN JOSEPH, GERNANT TIMOTHY
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A method of monitoring evaporative emissions of a vehicle includes the steps of establishing a baseline pressure within a vehicle evaporative emission system during the occurrence of a vehicle-off condition, detecting a change in the baseline pressure during the vehicle-off condition, and indicating whether the change in the baseline pressure is within a desirable limit.