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Time-dependent digital signal e.g. suction tube pressure signal, processing method for motor vehicle, involves updating value of size of change of signal as function of value of difference signal formed from time-dependent digital signal
Time-dependent digital signal e.g. suction tube pressure signal, processing method for motor vehicle, involves updating value of size of change of signal as function of value of difference signal formed from time-dependent digital signal
The method involves determining temporal average values of a time-dependent digital signal (IMAP-Unfilt) e.g. suction tube pressure signal, in temporal signal averaging intervals sequentially, and determining duration of each interval as a function of a value of a size of change of signal (IMAP-Grdt-Cnt). The value of the size of change of signal is updated constantly as a function of a value of a difference signal (IMAP-Grdt-Filt) that is formed from the time-dependent digital signal by subtraction of two temporal sequential signal values and a temporal averaging of the subtraction results. An independent claim is also included for a device for processing a time-dependent digital signal.
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