Method for drift detection and drift compensation of injectors for injecting fuel into combustion chambers of internal combustion engine, involves carrying out characteristic extraction from frequency spectrum

摘要

The method involves scanning a signal characterizing the rail pressure. The time-discrete signal is transformed into the frequency chamber. The characteristic extraction is carried out from the frequency spectrum, and a characteristic vector is detected. One of the characteristic vectors is compared with the corresponding stored characteristic vector. Independent claims are included for the following: (1) a computer program for executing the method; and (2) a computer program product with a program code for executing the method.