公开(公告)号：US11993275B2

公开(公告)日：2024-05-28

申请号：US17026699

申请日：2020-09-21

Applicant: Cummins Inc.

Inventor： Phanindra V. Garimella ,  James Ryan Hyslop ,  Venkatramanan Jayaraman ,  Pallav Pathak ,  Michael Justin Tammen ,  Patrick J. Shook ,  Randall J. Johnson ,  Travis Alva Anderson

IPC: B60W50/038 ,  B60W20/50

CPC classification number: B60W50/038 ,  B60W20/50 ,  B60W2710/083

Abstract: An engine friction monitor uses commanded torque and measured torque to provide a prognostic feature to identify failure modes of an engine that causes the engine from delivering the commanded torque.

公开(公告)号：US20210254530A1

公开(公告)日：2021-08-19

申请号：US17306638

申请日：2021-05-03

Applicant: Cummins, Inc.

Inventor： Travis Alva Anderson ,  Joan M. Wills ,  Rajkumar Subramanian ,  Vaibhav Daramwar ,  Pagalavan Mathari Bakthavatsalam ,  Paul Daniel Borisuk

IPC: F01N3/20 ,  F02D41/02 ,  F02D9/04 ,  F02B37/18 ,  F02D41/14 ,  F01N9/00

Abstract: Systems, methods, and apparatuses are provided for increasing exhaust gas temperature. A system includes a valve and a controller coupled to the valve. The controller is structured to determine that a plurality of cylinders of an engine are active; compare an exhaust aftertreatment temperature to an exhaust aftertreatment temperature setpoint; and in response to the comparison, adjust an effective flow area for exhaust gas from the plurality of cylinders of the engine to increase an exhaust gas temperature.

公开(公告)号：US20190264594A1

公开(公告)日：2019-08-29

申请号：US16408811

申请日：2019-05-10

Applicant: Cummins Inc.

Inventor： Travis Alva Anderson ,  Joan M. Wills ,  Rajkumar Subramanian ,  Vaibhav Daramwar ,  Pagalavan Mathari Bakthavatsalam ,  Paul Daniel Borisuk

IPC: F01N3/20 ,  F02D9/04 ,  F02B37/18 ,  F02D41/14 ,  F02D41/02 ,  F01N9/00

Abstract: Systems, methods, and apparatuses are provided for increasing exhaust gas temperature. A system includes a valve and a controller coupled to the valve. The controller is structured to determine that an exhaust manifold pressure does not meet an exhaust manifold pressure setpoint and in response, cause an adjustment of an effective flow area of exhaust gas from an engine. The adjustment of the effective flow area is structured to increase an exhaust gas temperature.

公开(公告)号：US20180209318A1

公开(公告)日：2018-07-26

申请号：US15416695

申请日：2017-01-26

Applicant: Cummins, Inc.

Inventor： Travis Alva Anderson ,  Joan M. Wills ,  Rajkumar Subramanian ,  Vaibhav Daramwar ,  Pagalavan Mathari Bakthavatsalam ,  Paul Daniel Borisuk

IPC: F01N3/20 ,  F01N11/00 ,  F01N3/28 ,  F02D41/02 ,  F02D9/04 ,  F02B37/18

CPC classification number: F01N3/2066 ,  F01N9/00 ,  F01N2900/1404 ,  F01N2900/1406 ,  F02B37/18 ,  F02D9/04 ,  F02D41/024 ,  F02D41/1448 ,  F02D2700/04 ,  Y02T10/144 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: A method for increasing the exhaust temperature of an exhaust system. The method includes receiving an inlet temperature of a selective catalytic reduction system; determining whether the inlet temperature meets a temperature setpoint; adjusting an exhaust manifold pressure setpoint based on the determination of the inlet temperature; determining whether the exhaust manifold pressure of at least one of first or second bank meet the exhaust manifold pressure setpoint; and causing an adjustment of an effective flow area of at least one of the first bank or second bank based on the exhaust manifold pressure, the adjustment of the effective flow area structured to increase exhaust temperature during light load operation.