Method for operating an internal combustion engine of a motor vehicle, in particular a motor car

A method for operating an internal combustion engine of a motor vehicle, wherein the internal combustion engine comprises a combustion chamber and a prechamber spark plug which is assigned to the combustion chamber and which has a prechamber which is fluidically connected to the combustion chamber via a plurality of openings, the method comprising:

• operating the internal combustion engine, wherein the internal combustion engine is a spark-ignition engine, in a catalytic converter heating operation, in which:
• an ignition time, at which an ignition spark for igniting a fuel-air mixture in the combustion chamber is generated in the prechamber within a particular operating cycle of the internal combustion engine, and an injection time, at which a last direct fuel injection into the combustion chamber is carried out within the particular operating cycle, are shifted later compared to a normal operation;
• wherein in the catalytic converter heating operation there are more than 80 crank angle degrees between the injection time and the ignition time within the particular operating cycle.