公开(公告)号：US20240318585A1

公开(公告)日：2024-09-26

申请号：US18676484

申请日：2024-05-28

Applicant: Cummins Inc.

Inventor： Haifeng Shi ,  Yang Z. Zhou ,  Chengxiu Huang

IPC: F01N11/00 ,  F01N3/20 ,  F01N9/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/22

CPC classification number: F01N11/002 ,  F01N3/2066 ,  F02D41/0235 ,  F01N9/005 ,  F01N9/007 ,  F01N11/007 ,  F01N2550/02 ,  F01N2550/03 ,  F01N2550/20 ,  F01N2560/02 ,  F01N2610/1453 ,  F01N2900/04 ,  F01N2900/0416 ,  F01N2900/06 ,  F02D41/1495 ,  F02D41/222 ,  F02D2200/08

Abstract: Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. The system includes an exhaust aftertreatment system coupled to an engine system, at least one sensor, and at least one processing circuit structured to: receive initial sensor data; determine an initial parameter value based on the initial sensor data; determine that the initial parameter does not satisfy an initial threshold; perform operations to diagnose at least one component of the exhaust aftertreatment system comprising: causing the engine system to operate through a sequence of a plurality of engine outputs; receiving a plurality of sensor data, each of the plurality sensor data corresponding to at least one of the plurality of engine outputs; comparing each of the plurality of sensor data to a corresponding threshold; and diagnosing the at least one component based on the comparison.

公开(公告)号：US12031464B2

公开(公告)日：2024-07-09

申请号：US18236577

申请日：2023-08-22

Applicant: Cummins Inc.

Inventor： Haifeng Shi ,  Yang Z. Zhou ,  Chengxiu Huang

IPC: F01N11/00 ,  F01N3/20 ,  F01N9/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/22

CPC classification number: F01N11/002 ,  F01N3/2066 ,  F02D41/0235 ,  F01N9/005 ,  F01N9/007 ,  F01N11/007 ,  F01N2550/02 ,  F01N2550/03 ,  F01N2550/20 ,  F01N2560/02 ,  F01N2610/1453 ,  F01N2900/04 ,  F01N2900/0416 ,  F01N2900/06 ,  F02D41/1495 ,  F02D41/222 ,  F02D2200/08

Abstract: Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. The system includes an exhaust aftertreatment system coupled to an engine system, at least one sensor, and at least one processing circuit structured to: receive initial sensor data; determine an initial parameter value based on the initial sensor data; determine that the initial parameter does not satisfy an initial threshold; perform operations to diagnose at least one component of the exhaust aftertreatment system comprising: causing the engine system to operate through a sequence of a plurality of engine outputs; receiving a plurality of sensor data, each of the plurality sensor data corresponding to at least one of the plurality of engine outputs; comparing each of the plurality of sensor data to a corresponding threshold; and diagnosing the at least one component based on the comparison.

公开(公告)号：US20240077010A1

公开(公告)日：2024-03-07

申请号：US18236577

申请日：2023-08-22

Applicant: Cummins Inc.

Inventor： Haifeng Shi ,  Yang Z. Zhou ,  Chengxiu Huang

IPC: F01N11/00 ,  F01N3/20 ,  F02D41/02

CPC classification number: F01N11/002 ,  F01N3/2066 ,  F02D41/0235 ,  F01N2610/1453 ,  F02D2200/08

Abstract: Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. The system includes an exhaust aftertreatment system coupled to an engine system, at least one sensor, and at least one processing circuit structured to: receive initial sensor data; determine an initial parameter value based on the initial sensor data; determine that the initial parameter does not satisfy an initial threshold; perform operations to diagnose at least one component of the exhaust aftertreatment system comprising: causing the engine system to operate through a sequence of a plurality of engine outputs; receiving a plurality of sensor data, each of the plurality sensor data corresponding to at least one of the plurality of engine outputs; comparing each of the plurality of sensor data to a corresponding threshold; and diagnosing the at least one component based on the comparison.