Method for controlling fuel of a spark ignited engine while regenerating a particulate filter

Method for controlling fuel of a spark ignited engine while regenerating a particulate filter

A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream cataly...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LORENZ THOMAS, HEPBURN JEFFREY SCOTT, MCCABE ROBERT WALTER, RUHLAND HELMUT HANS, SPRINGER MORITZ KLAUS, HUBBARD CAROLYN PARKS, BIDNER DAVID KARL, KERNS JAMES MICHAEL, LOUVEN GEORG, XIAO NIAN, THANASIU EVA
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.