公开(公告)号：US20240295185A1

公开(公告)日：2024-09-05

申请号：US18281064

申请日：2022-03-10

Applicant: Cummins Inc.

Inventor： Arun Shori Sundaravel Damotharan ,  Rutika Kaustubh Gokhale ,  Rakesh Mohanty

IPC: F01N11/00 ,  F01N3/20 ,  G01M15/10

CPC classification number: F01N11/002 ,  F01N3/208 ,  G01M15/102 ,  F01N2550/02 ,  F01N2900/1602

Abstract: Systems and methods for diagnosing a sensor of an exhaust aftertreatment system can include a controller determining that an amount of an exhaust gas constituent at a particular location is expected to be at or below a predefined value for a period of time, and receiving data indicative of a sensed amount of the exhaust gas constituent from the sensor of the exhaust aftertreatment system during the period of time. The controller determines, based on the sensed amount of the exhaust gas constituent, an amount of offset affecting the sensor of the exhaust aftertreatment system, and initiates an action based on the determined amount of offset to diagnose the sensor.