| 摘要 |
A method is proposed for the measurement of a medium, in particular of the air aspirated by an internal combustion engine, in a flow cross section and for correcting the flow rate value (q) furnished by a flow rate meter in the event of a pulsating flow. To this end, by measuring the pressure of the medium (pm) at a restriction and by comparing it with a pressure value (ps) for steady flow associated with the measured flow rate value (q), the pulsation amplitude (a) is determined and is multiplied via characteristic value memories for the flow rate values (q), in order to correct an average-value error and/or to correct the error in the event of reversed flow, with a correction value (k) in order to form a corrected flow rate value (Q).
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