Verfahren zur Steuerung des Einlasses einer Viertaktbrennkraftmaschine mit Direkteinspritzung

摘要

The intake control for an engine (4) uses variable intake of air and fuel to at least two cylinders or groups of cylinders. A first cylinder or group of cylinders (22,23) functions at a richness greater than or equal to unity. A catalyser for oxide reduction is connected to the first group of cylinders. A second cylinder or group of cylinders (21,24) functioning with a leaner mixture. A main catalyser (12) is connected to the exhaust to the second bank of cylinders.