Patent ID: 9599005
Date: 2017-03-21
CPC Classifications: F01N,Y02T

Claim:
1. A system comprising: an internal combustion engine having an exhaust stream; a particulate filter disposed downstream of and fluidly coupled to said engine, and having a filter first end and a filter second end downstream of said filter first end; a first temperature sensor operatively coupled to said exhaust stream and disposed between said filter first end and said filter second end, and provides a first temperature value; a controller, wherein the first temperature sensor is operatively coupled to the controller, and wherein the controller structurally comprises: a temperature sensor processing module structured to interpret said first temperature value and a reference temperature value; a particulate filter failure threshold module structured to determine a particulate filter failure threshold value; and a particulate filter diagnostic module structured to determine a particulate filter health value in response to an interpretation by the temperature sensor processing module of said first temperature value and said reference temperature value and further in response to a determination by said particulate filter failure threshold module of said particulate filter failure threshold value.