METHOD FOR DETERMINING A GAS CONCENTRATION IN A MEASURING GAS WITH A GAS SENSOR

A method for ascertaining a gas concentration in a measuring gas with the aid of a gas sensor. In a first operating mode of an internal combustion engine, in which the gas concentration in the measuring gas is known, a plurality of value pairs of a respective gas concentration signal and a pressure...

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Bibliographische Detailangaben
Hauptverfasser:	ELMER, Martin, SCHMIDT, Albrecht, ZEIN, Thomas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	A method for ascertaining a gas concentration in a measuring gas with the aid of a gas sensor. In a first operating mode of an internal combustion engine, in which the gas concentration in the measuring gas is known, a plurality of value pairs of a respective gas concentration signal and a pressure signal are detected. Proceeding from these value pairs, a compensation parameter and a scaling factor of the gas sensor are ascertained. Subsequently, in a second operating mode of the internal combustion engine, the ascertainment of a gas concentration to be determined takes place, based on a gas concentration signal measured in the second operating mode of the internal combustion engine, and taking the compensation parameter and the scaling factor of the gas sensor into consideration.