Systems and methods for determining normalized fuel-air ratio error for a cylinder of an engine an engine are disclosed. In one example, the engine is operated in a four-cylinder mode to generate a first normalized fuel-air ratio error for a first cylinder...

A fuel supply apparatus for an internal combustion engine having a plurality of cylinders, which supplies fuel through fuel injection valves provided corresponding to the plurality of cylinders. An amount of fuel supplied to the engine is controlled by cha...

Method for operation of a direct injection combustion engine, whereby the engine is operated in a lean mode with homogeneous character. Accordingly a constant lambda value is striven for, with the lambda value effectively maintained between upper and lower...

The operating method has at least part of the fuel injected into the combustion chambers of the internal combustion engine, for providing stratified injection, the operations (62-66) required for operation of the engine defined by an operating raster (SYNC...