Operating method for a low-NOx combustion engine (NAV)

摘要

The invention relates to an operating method for a, in particular direct injection, multiple combustion chambers having internal combustion engine, in particular for a direct injection gasoline engine, for. As a motor vehicle, with low-NOx combustion (NAV). In the NAV operating method according to the invention, a substantially homogeneous, lean fuel / exhaust gas / air mixture with a combustion air ratio of λ ≥ 1 is externally ignited in the respective combustion chamber by means of an ignition device at an ignition time (ZZP), wherein a flame front combustion (FFV ) into a room ignition combustion (RZV). By the NAV operating method, a room ignition combustion can be performed in an engine load range in which a pure RZV operation method can not be sufficiently stable enough operation.