公开(公告)号：US20240151174A1

公开(公告)日：2024-05-09

申请号：US18403438

申请日：2024-01-03

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Xing Jin ,  David Schmidt ,  Lu Qiu ,  Lisa A. Orth-Farrell ,  Ying Yuan ,  Manik Narula ,  Lars K. Henrichsen

IPC: F01N3/28 ,  B01D53/02 ,  B01D53/94 ,  F01N3/08 ,  F01N9/00 ,  F02D29/06

CPC classification number: F01N3/2892 ,  B01D53/02 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9481 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/2803 ,  F01N9/00 ,  F02D29/06 ,  B01D2253/108 ,  B01D2253/112 ,  B01D2253/1124 ,  B01D2257/404 ,  B01D2259/4566 ,  F01N2370/04 ,  F01N2900/10 ,  F01N2900/1602

Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to: while controlling the bypass valve to direct exhaust gas to the PNA, detect a torque demand that is greater than a threshold value; responsive to detecting that the torque demand is greater than the threshold value, engage a motor, coupled with a battery system, with a drive shaft of the system to meet at least a portion of the torque demand; in response to the engagement of the motor with the drive shaft not meeting all of the torque demand, engage the engine with the drive shaft to meet a remainder of the torque demand.

公开(公告)号：US11933237B2

公开(公告)日：2024-03-19

申请号：US17843473

申请日：2022-06-17

Applicant: Cummins, Inc. ,  Tula Technology, Inc.

Inventor： J. Steven Kolhouse ,  David Langenderfer ,  David Schmidt ,  Vijay Srinivasan

IPC: F02D41/02 ,  F01N3/023 ,  F01N3/08 ,  F01N9/00 ,  F01N11/00 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02D41/029 ,  F02D41/0087 ,  F02D41/1448 ,  F02D41/1454 ,  F01N3/0233 ,  F01N3/0864 ,  F01N9/002 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2430/02 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2430/10 ,  F01N2550/04 ,  F01N2560/025 ,  F01N2900/0418 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1606 ,  F01N2900/1611 ,  F01N2900/1806 ,  F02D2200/021 ,  F02D2200/701

Abstract: A system includes an exhaust aftertreatment system including a particulate filter and a controller. The controller is configured to: receive a particulate filter regeneration event trigger; receive information, the information comprising a temperature regarding the particulate filter; determine the temperature regarding the particulate filter is below a temperature threshold associated with a particulate filter regeneration event; and responsive to determining the temperature regarding the particulate filter is below the temperature threshold, command the engine to operate in a cylinder deactivation mode, whereby at least one cylinder of a plurality of cylinders of the engine is deactivated.

公开(公告)号：US11898483B2

公开(公告)日：2024-02-13

申请号：US17748559

申请日：2022-05-19

Applicant: CUMMINS INC.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Xing Jin ,  David Schmidt ,  Lu Qiu ,  Lisa A. Orth-Farrell ,  Ying Yuan ,  Manik Narula ,  Lars K. Henrichsen

IPC: F01N3/28 ,  B01D53/02 ,  B01D53/94 ,  F01N3/08 ,  F01N9/00 ,  F02D29/06

CPC classification number: F01N3/2892 ,  B01D53/02 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9481 ,  B01D53/9495 ,  F01N3/0842 ,  F01N3/2803 ,  F01N9/00 ,  F02D29/06 ,  B01D2253/108 ,  B01D2253/112 ,  B01D2253/1124 ,  B01D2257/404 ,  B01D2259/4566 ,  F01N2370/04 ,  F01N2900/10 ,  F01N2900/1602

Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to, determine that the catalyst is operating under cold start conditions, control the bypass valve to direct exhaust gas to the PNA, determine that the catalyst is no longer operating under cold start conditions and continue to control the bypass valve to direct exhaust gas to the PNA for a predetermined duration, and after the elapse of the predetermined duration, control the bypass valve to direct exhaust gas to the catalyst bypassing the PNA. The controller is also configured to detect a high transient torque demand while the exhaust gas is provided to the PNA, and split the torque demand between the engine and an electric motor.