ON-BOARD CATALYST HEALTH MONITORING AND CONTROL SYSTEM ADAPTATION IN INTERNAL COMBUSTION ENGINES

摘要

According to various embodiments, the various embodiments include systems adapted to monitor catalyst deterioration. Some of the various embodiments comprises: a catalyst deterioration detection system including a pre-catalytic converter gas sensor; a post-catalytic converter gas sensor; at least one computing device in communication with the pre-catalytic converter and post-catalytic converter gas sensors; at least one of the computing device configured to monitor catalyst deterioration by performing actions including estimating a catalyst gas storage level by comparing a difference between a pre-catalytic converter gas level from the pre-catalytic converter gas sensor and a post-catalytic converter gas level from the post-catalytic converter gas sensor; comparing the estimated catalyst gas storage level to a baseline catalyst gas storage level and determining that the catalyst is deteriorated in response to the baseline catalyst gas storage level exceeding the estimated gas storage level by a threshold difference.