公开(公告)号：US20210285353A1

公开(公告)日：2021-09-16

申请号：US17214524

申请日：2021-03-26

Applicant: Cummins Inc.

Inventor： John L. Hoehne ,  Paul Daniel Borisuk ,  Boopathi Singalandapuram Mahadevan ,  Joshua A. Lantz ,  Jeffrey W. Lewis ,  Snita Navnith Menon

IPC: F01N3/20 ,  F01N3/00

Abstract: A controller for removing deposits in a vehicle is disclosed. The controller includes at least one processor and a memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to: determine an amount of deposits accumulated in the vehicle based on an amount of time; determine a combustion target for the vehicle in response to determining that the amount of deposits exceeds a deposit threshold; and modulate a fluid flow of the vehicle based on the determined combustion target.

公开(公告)号：US20180149105A1

公开(公告)日：2018-05-31

申请号：US15873972

申请日：2018-01-18

Applicant: Cummins Inc.

Inventor： John L. Hoehne ,  Ian W. McGiffen ,  Chandan Mahato ,  Paul Daniel Borisuk ,  Boopathi Singalandapuram Mahadevan

IPC: F02D41/14 ,  F02D41/02 ,  F02D41/00 ,  F02M26/05 ,  F02B37/18 ,  F02B29/04 ,  F01N11/00 ,  F01N3/20

CPC classification number: F02D41/1446 ,  F01N3/2066 ,  F01N11/002 ,  F01N2430/00 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1602 ,  F02B29/0406 ,  F02B37/00 ,  F02B37/186 ,  F02D41/0007 ,  F02D41/0245 ,  F02D2200/0406 ,  F02D2200/0802 ,  F02D2250/36 ,  F02M26/05 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: A system and method for controlling a temperature of an exhaust gas at an inlet of a selective catalytic reduction system during at least certain low air density conditions. The system may detect an air density value upstream of an internal combustion engine of an engine system, such as, for example, at an inlet of a compressor. Using the detected air density, one of a plurality of relationships between an engine speed and an outputted engine power, as a function of the detected air density value, may be selected for use in determining what combination of engine speed(s) and/or engine power(s) will produce an exhaust gas that is within a target exhaust gas temperature. Using the selected relationship, at least one of the engine speed and the engine power may be adjusted to at least assist in attaining the target exhaust gas temperature.

公开(公告)号：US11591944B2

公开(公告)日：2023-02-28

申请号：US17214524

申请日：2021-03-26

Applicant: Cummins Inc.

Inventor： John L. Hoehne ,  Paul Daniel Borisuk ,  Boopathi Singalandapuram Mahadevan ,  Joshua A. Lantz ,  Jeffrey W. Lewis ,  Snita Navnith Menon

IPC: F01N3/20 ,  F01N3/00

Abstract: A controller for removing deposits in a vehicle is disclosed. The controller includes at least one processor and a memory storing instructions therein that, when executed by the at least one processor, cause the at least one processor to: determine an amount of deposits accumulated in the vehicle based on an amount of time; determine a combustion target for the vehicle in response to determining that the amount of deposits exceeds a deposit threshold; and modulate a fluid flow of the vehicle based on the determined combustion target.

公开(公告)号：US20230035148A1

公开(公告)日：2023-02-02

申请号：US17966620

申请日：2022-10-14

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: A method includes: determining that at least one cylinder of a first cylinder bank of an engine is active; determining that at least one cylinder of a second cylinder bank of the engine is inactive; receiving an inlet temperature of a selective catalytic reduction system; comparing the inlet temperature to a temperature setpoint; and adjusting at least one of a first exhaust manifold pressure setpoint for the first cylinder bank or a second exhaust manifold pressure setpoint for the second cylinder bank based on the comparison.

公开(公告)号：US10995642B2

公开(公告)日：2021-05-04

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 ,  F01N9/00 ,  F02D9/04 ,  F02B37/18 ,  F02D41/14 ,  F02D41/02

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：US10961889B2

公开(公告)日：2021-03-30

申请号：US16320844

申请日：2017-07-27

Applicant: Cummins Inc.

Inventor： John L. Hoehne ,  Paul Daniel Borisuk ,  Boopathi Singalandapuram Mahadevan ,  Joshua A. Lantz ,  Jeffrey W. Lewis ,  Snita Navnith Menon

IPC: F01N3/20 ,  F01N3/00

Abstract: Systems and methods for removing deposit in an aftertreatment system for an engine are disclosed herein. The method comprises determining an amount of deposits accumulated in the aftertreatment system, determining combustion targets for the engine in response to determining the amount of deposits exceeds a deposit threshold, and modulating an air mass flow for the engine based on the determined combustion targets. The air mass flow can be modulated by changing the position of the wastegate or the geometry of the variable geometry turbine (VGT).

公开(公告)号：US20190227043A1

公开(公告)日：2019-07-25

申请号：US15877654

申请日：2018-01-23

Applicant: Cummins Inc.

Inventor： Prabhu Jackson ,  Paul Daniel Borisuk

IPC: G01N33/00 ,  G01M15/10 ,  F01N13/00

Abstract: A method, system, and apparatus are provided for improving accuracy of sensor readings reflecting measurements of at least one constituent in an engine exhaust. The sensor measurement is corrected or compensated for by applying to a gain correction factor to the reported sensor measurement. The gain correction factor is developed by determination of prior test sensor readings correlated with discrete sensor age levels, and with constituent concentrations to which those test sensors are exposed. By applying the determined gain correction factor to change the sensor's reported measurements, bias may be reduced and a more accurate measure of actual constituent levels is provided.