METHOD AND CONTROL UNIT FOR DETERMINING A DEAD TIME OF AN EXHAUST GAS SENSOR OF AN INTERNAL COMBUSTION ENGINE

METHOD AND CONTROL UNIT FOR DETERMINING A DEAD TIME OF AN EXHAUST GAS SENSOR OF AN INTERNAL COMBUSTION ENGINE

In a method for determining a dead time in the response characteristic of an exhaust gas sensor in order to determine an exhaust gas state quantity in an exhaust gas duct of an internal combustion engine, the dead time is determined from a measured output signal of the exhaust gas sensor and a compa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: MICHALSKE, ANDREAS
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:In a method for determining a dead time in the response characteristic of an exhaust gas sensor in order to determine an exhaust gas state quantity in an exhaust gas duct of an internal combustion engine, the dead time is determined from a measured output signal of the exhaust gas sensor and a comparison signal. An undelayed comparison signal is determined, and a cross-correlation is formed between the measured output signal and the comparison signal delayed by a model dead time selected in such a way that the cross-correlation function assumes a maximum, and the dead time of the measured output signal is set equal to the selected model dead time.