MEHRSTOFFMASCHINENSTEUERUNG MIT BEHAELTERABLASS

A fuel control for an engine (11) of a motor vehicle using a liquid mixture of two fuels e.g. gasoline and methanol includes a fuel vapour collection canister open to the fuel tank and canister purge apparatus effective to allow fuel vapours to be drawn from the canister to the engine at a controlle...

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Bibliographische Detailangaben
Hauptverfasser:	GONZE, EUGENE VICTOR, BROWN, DAVID BRIAN, STERLING HEIGHTS, MICH., US
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	A fuel control for an engine (11) of a motor vehicle using a liquid mixture of two fuels e.g. gasoline and methanol includes a fuel vapour collection canister open to the fuel tank and canister purge apparatus effective to allow fuel vapours to be drawn from the canister to the engine at a controlled purge rate during engine operation. The canister purge apparatus is responsive to a fuel composition sensor to vary a basic purge rate (CCP) as a function of the fuel composition (ALC %). When the two fuels are gasoline and methanol, the canister purge rate is varied, in a predetermined range of fuel temperature (FTS > TREF1), so as to provide a higher purge rate for mixtures of gasoline and methanol, in at least some proportions, than for either gasoline or methanol alone. The canister purge rate may further be varied in response to fuel temperature (FTS). The basic purge rate (CCP) is set as a function of air flow or manifold pressure.