Determining gas pressure profile for combustion engine involves converting pressure sensor signal to cleaned pressure measurement signal in evaluation device taking into account noise parameter signal

摘要

The method involves a first sensor (12) producing an output signal (14) dependent on the internal pressure of a combustion chamber (10) and/or its variations, determining a second signal (15) dependent on a noise parameter that influences the first output signal and converting the first signal into a cleaned pressure measurement signal in an evaluation device (16) taking into account the second output signal.