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公开(公告)号：US10480441B2
公开(公告)日：2019-11-19
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: F02D41/00 , F02D41/14 , F02B29/04 , F02M26/05 , F02D41/02 , F01N3/20 , F01N11/00 , F02B37/18 , F02B37/00
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.
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公开(公告)号：US11473469B2
公开(公告)日：2022-10-18
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
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.
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公开(公告)号：US20190162096A1
公开(公告)日：2019-05-30
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
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).
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公开(公告)号：US10287945B2
公开(公告)日：2019-05-14
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
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.
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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
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.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US12071885B2
公开(公告)日：2024-08-27
申请号：US18201262
申请日：2023-05-24
Applicant: CUMMINS INC.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
CPC classification number: F01N3/2066 , F01N9/00 , F02B37/18 , F02D9/04 , F02D41/024 , F02D41/1448 , F01N2900/1404 , F01N2900/1406 , F02D2700/04 , Y02T10/12 , Y02T10/40
Abstract: A method includes: 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 a first cylinder bank of an engine or a second exhaust manifold pressure setpoint for a second cylinder bank of the engine, based on the comparison.
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公开(公告)号：US20230296041A1
公开(公告)日：2023-09-21
申请号：US18201262
申请日：2023-05-24
Applicant: CUMMINS INC.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
CPC classification number: F01N3/2066 , F02D41/024 , F02D9/04 , F02B37/18 , F02D41/1448 , F01N9/00 , F02D2700/04 , F01N2900/1404 , F01N2900/1406 , Y02T10/12 , Y02T10/40
Abstract: A method includes: 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 a first cylinder bank of an engine or a second exhaust manifold pressure setpoint for a second cylinder bank of the engine, based on the comparison.
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公开(公告)号：US11692472B2
公开(公告)日：2023-07-04
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
CPC classification number: F01N3/2066 , F01N9/00 , F02B37/18 , F02D9/04 , F02D41/024 , F02D41/1448 , F01N2900/1404 , F01N2900/1406 , F02D2700/04 , Y02T10/12 , Y02T10/40
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.
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