METHOD FOR CONTROLLING A MOTOR VEHICLE EXHAUST GAS SENSOR

The invention concerns a method for controlling an exhaust gas sensor, such as a potentiometer, in a motor vehicle, delivering an electric current voltage characteristic of the concentration of the species to be measured, and comprising a device for maintaining the sensing element temperature close...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ALBOUY, HUGUES, COL, GABRIEL, NEYRAT, PIERRE, DIONNET, BERNARD, AIMARD, FREDERIC
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention concerns a method for controlling an exhaust gas sensor, such as a potentiometer, in a motor vehicle, delivering an electric current voltage characteristic of the concentration of the species to be measured, and comprising a device for maintaining the sensing element temperature close to the nominal temperature. Said method consists in monitoring the sensor output signal for an engine operating mode generating a minimum sensitivity of said signal to temperature and in adapting said signal to degrading modes for minimising the sensor sensitivity.