METHOD AND DEVICE FOR CONTROLLING INJECTION IN AN ENGINE, AND AUTOMOBILE FITTED WITH SUCH DEVICE

摘要

The invention relates to a method for controlling the injection in an internal combustion engine, having an injection control pattern that comprises a first injection and a second injection per cycle for the combustion chamber (1) of an engine cylinder, wherein a sensor (3) provides a signal (SBR) representative of the combustion noise (or combustion pressure). According to the invention, a critical frequency (FCRIT) of the combustion noise (or combustion pressure) of the cylinder is sent to a calculator (3), the calculator uses the spectral information of the signal (SBR) for modifying (COMPH) the time phasing between two injections so that a spectral excitation peak (PBR) of the combustion noise (BR) is remote from the frequency.