| 摘要 |
In a method for operating a spark-ignition internal combustion engine with direct fuel injection in the post-start phase at low temperatures, fuel is supplied to the combustion air in a pilot injection (M<SUB>H</SUB>) of a first fuel quantity during an intake stroke of the internal combustion engine such that the pilot injection (M<SUB>H</SUB>) forms a homogeneous, lean air/fuel mixture (lambda>1) in substantially the entire combustion chamber, and a main injection (M<SUB>S</SUB>) of a second fuel quantity is subsequently injected into the combustion chamber during a compression stroke directly before the ignition time (ZT), said main injection (M<SUB>S</SUB>) forming in the region of the spark plug a stratified, rich air/fuel mixture (lambda<1), which is then ignited by the spark plug.
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