Patent ID: 9528462
Filing Date: 2016-12-27
CPC Classification: F02D,Y02T

Claim Text:
1. A vehicle comprising: an internal combustion engine; and an exhaust system in fluid communication with the engine, and including: a controller in communication with the rear NOx sensor, wherein the controller includes a processor and tangible, non-transitory memory on which is recorded: wherein the processor is configured to: extract information from the data maps and binary values from the binary maps, receive measurements of the downstream NOx levels from the rear NOx sensor, verify the plausibility of the received measurements of the downstream NOx levels using the extracted binary values from the binary maps and the extracted information from the data maps, and execute a control action with respect to the exhaust system using the downstream NOx level measurements from the rear NOx sensor and the extracted information from the data maps, including diagnosing performance of the rear NOx sensor within the exhaust system.