公开(公告)号：US11519350B2

公开(公告)日：2022-12-06

申请号：US17544069

申请日：2021-12-07

Applicant: Cummins Inc.

Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

IPC: F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40 ,  F01N3/20

Abstract: A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.

公开(公告)号：US11512659B2

公开(公告)日：2022-11-29

申请号：US17087515

申请日：2020-11-02

Applicant: Cummins Inc.

Inventor： Agneya Turlapati ,  Robin J. Bremmer ,  Philipe F. Saad

IPC: F02D41/14 ,  F02D35/02 ,  F02D41/00 ,  F02D19/06 ,  F01N11/00

Abstract: A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.

公开(公告)号：US11428155B2

公开(公告)日：2022-08-30

申请号：US17058520

申请日：2019-07-24

Applicant: Cummins Inc.

Inventor： Carlos A. Lana ,  Trideep Singh ,  Veronica S. Perks ,  Steven Kolhouse ,  Robin J. Bremmer ,  Philipe F. Saad ,  Agneya Turlapati ,  Milan Visaria

IPC: F02B39/10 ,  F02B37/10 ,  F02M21/02

Abstract: The present disclosure provides an engine fueling system that includes multiple fueling valves such that the fuel transport delay can be reduced. The fueling system may also include an electrically driven compressor to improve engine properties during engine startup. For example, an engine fueling system comprising: a first compressor; an intake air throttle operably coupled to the first compressor and positioned downstream of the first compressor; a primary fuel path in communication with a fuel supply, wherein a first fuel from the fuel supply is injected into the primary fuel path upstream from the compressor; and a secondary fuel path in communication with the fuel supply, wherein a second fuel from the fuel supply is injected into the secondary fuel path downstream from the compressor.

公开(公告)号：US12280679B2

公开(公告)日：2025-04-22

申请号：US17549490

申请日：2021-12-13

Applicant: Cummins Inc. ,  Hydrogenics Corporation

Inventor： Archit N. Koti ,  Patrick Kaufman ,  Elizabeth Weitzel ,  Vivek Anand Sujan ,  Martin T. Books ,  Chinmay Rao ,  Yongfei Yu ,  Sharon Liu ,  Sumit Tripathi ,  David P. Genter ,  Agneya Turlapati ,  Rohit Saha ,  Jifei Yan

IPC: B60L50/75 ,  B60L58/16 ,  B60L58/30 ,  H01M8/04858 ,  H01M10/42 ,  H01M16/00

Abstract: The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.

公开(公告)号：US20240254938A1

公开(公告)日：2024-08-01

申请号：US18603096

申请日：2024-03-12

Applicant: Cummins Inc. ,  Scania CV AB

Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

IPC: F02D41/02 ,  F01N3/023 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40

CPC classification number: F02D41/0255 ,  F02D41/1461 ,  F02D41/3836 ,  F02D41/405 ,  F01N3/0231 ,  F01N3/0807 ,  F01N3/2006 ,  F01N9/00 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2410/06 ,  F01N2430/06 ,  F01N2550/03 ,  F01N2570/14 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1611 ,  F01N2900/1614 ,  F01N2900/1622 ,  F01N2900/1626 ,  F02D2200/0802 ,  F02D2200/0806 ,  F02D2250/36

Abstract: A method includes initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount. The method also includes comparing a temperature of the aftertreatment system to a threshold temperature. The method also includes responsive to determining that the temperature of the aftertreatment system exceeds the threshold temperature, disengaging the LEON mode. The method also includes responsive to determining that the temperature of the aftertreatment system is below the threshold temperature, comparing a NOx value to a NOx value threshold. The method also includes disengaging the LEON mode responsive to determining that the NOx value exceeds the NOx value threshold.

公开(公告)号：US20240157277A1

公开(公告)日：2024-05-16

申请号：US18136220

申请日：2023-04-18

Applicant: Cummins Inc.

Inventor： Richard J. Ancimer ,  Joseph P. Chandraraj ,  David P. Genter ,  Brian K. Landes ,  Agneya Turlapati

IPC: B01D35/143 ,  B01D24/00 ,  B01D25/00

CPC classification number: B01D35/1435 ,  B01D24/008 ,  B01D25/006 ,  B01D25/007 ,  B01D2265/023 ,  B01D2265/027 ,  B01D2311/246

Abstract: A filtration system for a fuel cell hybrid propulsion system includes a first stage filter, a second stage filter positioned downstream of the first stage filter, and a third stage filter positioned downstream of the second stage filter and configured to be positioned upstream of a fuel cell system. The first stage filter has first pores with a first mean pore size. The second stage filter has second pores with a second mean pore size. The third stage filter has third pores with a third mean pore size. The second mean pore size is less than the first mean pore size. The third mean pore size is less than or equal to the second mean pore size. The first, second, and third stage filter are structured to filter an airflow prior to being received by the fuel cell system.

公开(公告)号：US11970991B2

公开(公告)日：2024-04-30

申请号：US18075053

申请日：2022-12-05

Applicant: Cummins Inc.

Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

IPC: F02D41/02 ,  F01N3/023 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40

CPC classification number: F02D41/0255 ,  F02D41/1461 ,  F02D41/3836 ,  F02D41/405 ,  F01N3/0231 ,  F01N3/0807 ,  F01N3/2006 ,  F01N9/00 ,  F01N9/005 ,  F01N11/002 ,  F01N11/005 ,  F01N2410/06 ,  F01N2430/06 ,  F01N2550/03 ,  F01N2570/14 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1611 ,  F01N2900/1614 ,  F01N2900/1622 ,  F01N2900/1626 ,  F02D2200/0802 ,  F02D2200/0806 ,  F02D2250/36

Abstract: A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.

公开(公告)号：US20230086566A1

公开(公告)日：2023-03-23

申请号：US18075053

申请日：2022-12-05

Applicant: Cummins Inc.

Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

IPC: F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40

Abstract: A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.

公开(公告)号：US20220178320A1

公开(公告)日：2022-06-09

申请号：US17544069

申请日：2021-12-07

Applicant: Cummins Inc.

Inventor： Janardhan Kodavasal ,  Ved Merchant ,  Agneya Turlapati ,  Kristopher R. Bare

IPC: F02D41/02 ,  F02D41/14 ,  F02D41/38 ,  F02D41/40

Abstract: A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.