Method for operating an internal combustion engine, and internal combustion engine

摘要

A method for operating an internal combustion engine, having an exhaust gas turbocharger, during a load change of the internal combustion engine, includes initiation of a closing process of a throttle valve of the internal combustion engine, disposed in an induction tract or intake section of the internal combustion engine, as a function of an air pressure which is present upstream of the throttle valve, in such a way that the air pressure always falls short of a surge limit or pumping limit of a compressor, disposed in the induction tract, of the exhaust gas turbocharger. A staged or stepped reduction in a torque of the internal combustion engine is performed by shutting off fuel injections at predetermined cylinders of the internal combustion engine. An internal combustion engine with an exhaust gas turbocharger is also provided.

主权项

1. A method for operating an internal combustion engine, having an exhaust gas turbocharger, during a load change of the internal combustion engine, the method comprising the following steps:
providing the internal combustion engine with cylinders, an induction tract communicating with the cylinders and a throttle valve disposed in the induction tract; providing the exhaust gas turbocharger with a compressor disposed in the induction tract; initiating a closing process of gradually closing the throttle valve as a function of an air pressure present upstream of the throttle valve, causing the air pressure to always falls short of a surge limit of the compressor; and reducing a torque of the internal combustion engine in stages by shutting off fuel injections at predetermined cylinders.