METHOD FOR OPERATING A FORCED-INDUCTION INTERNAL COMBUSTION ENGINE

摘要

According to the invention, the precision of an induction manifold model for a forced-induction internal combustion engine can be improved, wherein a first pressure value in the inlet tract (3) downstream of a throttle valve (6) and upstream of a compressor (7) and second pressure value (3) downstream of the compressor (7) are calculated by means of the induction manifold model. Furthermore, a first reference pressure and a second reference pressure are recorded by means of two pressure sensors (13, 14). It is determined whether the internal combustion engine (1) is operating with forced induction or not. The induction manifold model is then corrected on a difference between the first pressure value and the first reference value and a difference between the second pressure value and the second reference value depending on whether the operating mode is forced induction or not.