Exhaust gas sensor control adaptation for asymmetric type sensor degradation is provided. Methods and systems are provided for converting an asymmetric sensor response of an exhaust gas sensor to a symmetric response. In one example, a method includes adjusting fuel injection responsive to a modified exhaust oxygen feedback signal from an exhaust gas sensor, wherein the modified exhaust oxygen feedback signal is modified by transforming an asymmetric response of the exhaust gas sensor to a symmetric response. Further, the method may include adapting parameters of an anticipatory controller ofthe exhaust gas sensor based on the modified symmetric response.
EXHAUST GAS SENSOR CONTROL ADAPTATION FOR ASYMMETRIC TYPE SENSOR DEGRADATION