METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE, ESPECIALLY FOR A MOTOR VEHICLE

摘要

An internal combustion engine (1) especially for a motor vehicle is described. The engine is provided with an injection valve (10) with which the fuel is injected for a combustion, can be injected directly into a combustion chamber (4) of a cylinder (3) in a first operating mode during an induction phase and in a second operating mode during a compression phase. A spark plug (11) is provided with which the fuel, which is injected in both operating modes, is ignited. A catalytic converter (13) is provided for storing nitrous oxides arising during the combustion. With a control apparatus (12), the operating variables of the engine (1) can be controlled (open-loop and/or closed-loop) in both operating modes. A gear change into another gear stage and a switchover into the first operating mode can be carried out approximately simultaneously by the control apparatus (12). The switchover into the first operating mode is provided for discharging the nitrous oxides stored in the catalytic converter (13).