公开(公告)号：US11732632B1

公开(公告)日：2023-08-22

申请号：US17876863

申请日：2022-07-29

申请人： Cummins Emission Solutions Inc.

发明人： Cami Brigette Ethington ,  Premjee Sasidharan ,  Huiling Li ,  Varun Sood

IPC分类号： F01N11/00 ,  F01N3/28 ,  F01N3/20

CPC分类号： F01N11/002 ,  F01N3/2066 ,  F01N3/28 ,  F01N2370/02 ,  F01N2550/02 ,  F01N2570/14 ,  F01N2610/1453 ,  F01N2900/0421 ,  F01N2900/1411 ,  F01N2900/1602 ,  F01N2900/1621

摘要： A system comprising an aftertreatment system comprising: a catalyst member, and a first exhaust conduit upstream of the catalyst member; a first temperature sensor operatively coupled to the catalyst member; a flow sensor coupled to the first exhaust conduit; and a controller. The controller determines a temperature of the catalyst member, a flow rate of exhaust within the first exhaust conduit, and a space velocity of the exhaust within the catalyst member. The controller determines a first degradation value indicative of a degradation of the catalyst member. The controller determines a first difference between the first degradation value and a first degradation reference value and a second difference between the first degradation value and a second degradation reference value. After determining that the first difference is less than the second difference, the controller selects a first calibration metric. The controller determines a first efficiency value associated with the catalyst member.

公开(公告)号：US20240287928A1

公开(公告)日：2024-08-29

申请号：US18653126

申请日：2024-05-02

申请人： Cummins Emission Solutions Inc.

发明人： Matthew K. Volmerding ,  Varun Sood ,  Ramya vyas Arvind ,  James Zokoe, JR. ,  Ying Yuan ,  Yuying Song ,  Rayomand Dabhoiwala ,  Shirish S. Punde

IPC分类号： F01N13/00 ,  B01D53/94 ,  B01J29/072 ,  B01J35/00 ,  B01J35/56 ,  F01N3/035 ,  F01N3/10 ,  F01N3/20

CPC分类号： F01N13/009 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9472 ,  B01D53/9495 ,  B01J29/072 ,  B01J35/19 ,  B01J35/56 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/9155 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2257/502 ,  B01D2257/702 ,  B01D2258/01 ,  F01N2510/065 ,  F01N2610/03 ,  F01N2610/1453

摘要： An aftertreatment system includes an upstream particulate filter, a decomposition chamber, a decomposition chamber dosing module, a first downstream catalyst member, and a downstream particulate filter. The decomposition chamber is positioned downstream of the upstream particulate filter. The decomposition chamber dosing module is coupled to the decomposition chamber and is configured to provide downstream treatment fluid into the decomposition chamber. The first downstream catalyst member is positioned downstream of the decomposition chamber and comprises a first downstream catalyst substrate configured to facilitate treatment of exhaust gas. The downstream particulate filter positioned downstream of the first downstream catalyst member.