公开(公告)号：US12085033B2

公开(公告)日：2024-09-10

申请号：US18268084

申请日：2020-12-18

申请人： NISSAN MOTOR CO., LTD.

发明人： Akio Ashikaga ,  Kazuki Tanzawa ,  Takeshi Tsuyuki

IPC分类号： F02D41/02 ,  F02P5/15

CPC分类号： F02D41/024 ,  F02P5/1506 ,  F02D2200/0804

摘要： An internal combustion engine is mounted for power generation in a series hybrid vehicle and has an exhaust system with an upstream-side catalytic converter and a downstream-side catalytic converter. After starting of the internal combustion engine, the operation of the internal combustion engine is continued, without stopping the internal combustion engine even when the power generation request ceases, until completion of the warm-up of both of the upstream-side catalytic converter and the downstream-side catalytic converter. The internal combustion engine is operated with ignition timing retardation during a first period from the starting of the internal combustion engine to the completion of the warm-up of the upstream-side catalytic converter. During a second period from the completion of the warm-up of the upstream-side catalytic converter to the completion of the warm-up of the downstream-side catalytic converter, the internal combustion engine is operated without ignition timing retardation.

公开(公告)号：US12071885B2

公开(公告)日：2024-08-27

申请号：US18201262

申请日：2023-05-24

申请人： CUMMINS INC.

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

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

CPC分类号： F01N3/2066 ,  F01N9/00 ,  F02B37/18 ,  F02D9/04 ,  F02D41/024 ,  F02D41/1448 ,  F01N2900/1404 ,  F01N2900/1406 ,  F02D2700/04 ,  Y02T10/12 ,  Y02T10/40

摘要： 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.

公开(公告)号：US12037933B2

公开(公告)日：2024-07-16

申请号：US16884771

申请日：2020-05-27

申请人： WATLOW ELECTRIC MANUFACTURING COMPANY

发明人： Cal Swanson ,  Mark D. Everly ,  David P. Culbertson ,  James N. Pradun ,  Jeremy J. Quandt ,  Mark L. G. Hoven ,  Jeremy Ohse ,  Sanhong Zhang

IPC分类号： F01N9/00 ,  F01N3/023 ,  F01N3/027 ,  F01N3/20 ,  F01N11/00 ,  F01N13/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/22 ,  G01F1/68 ,  G01F1/86 ,  G01K7/16 ,  G01M15/05 ,  G05D23/185 ,  G05D23/24 ,  G05D23/30 ,  G07C5/08 ,  H05B1/02 ,  H05B3/00 ,  H05B3/14 ,  H05B3/18 ,  H05B3/20 ,  H05B3/40 ,  F01N3/021 ,  F01N3/08 ,  F01N3/10 ,  H01C7/02 ,  H01C7/04

CPC分类号： F01N9/005 ,  F01N3/023 ,  F01N3/027 ,  F01N3/2006 ,  F01N3/2013 ,  F01N9/00 ,  F01N9/002 ,  F01N11/002 ,  F01N11/005 ,  F01N13/0097 ,  F02D41/024 ,  F02D41/1446 ,  F02D41/1447 ,  F02D41/22 ,  F02D41/222 ,  G01F1/68 ,  G01F1/86 ,  G01K7/16 ,  G01M15/05 ,  G05D23/185 ,  G05D23/2401 ,  G05D23/30 ,  G07C5/0808 ,  H05B1/0227 ,  H05B1/0244 ,  H05B3/0042 ,  H05B3/141 ,  H05B3/18 ,  H05B3/20 ,  H05B3/40 ,  F01N3/021 ,  F01N3/0814 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N2240/10 ,  F01N2240/16 ,  F01N2240/36 ,  F01N2410/00 ,  F01N2410/04 ,  F01N2550/22 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/12 ,  F01N2560/20 ,  F01N2610/102 ,  F01N2900/0416 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1411 ,  F01N2900/1602 ,  F02D2041/1433 ,  F02D2041/228 ,  F28F2200/00 ,  G01K2205/04 ,  H01C7/02 ,  H01C7/04 ,  H05B2203/019 ,  H05B2203/021 ,  H05B2203/022 ,  Y02T10/12 ,  Y02T10/40

摘要： A control system for use in a fluid flow application includes a heater and a control device. The heater has at least one resistive heating element and the heater is operable to heat fluid. The control device determines at least one flow characteristic of a fluid flow based on a heat loss of the at least one resistive heating element and determines a mass flow rate of the fluid based on the at least one flow characteristic and a property of the at least one resistive heating element. And the property of the at least one resistive heating element includes a change in resistance of the at least one resistive heating element under a given heat flux density.

公开(公告)号：US11999341B2

公开(公告)日：2024-06-04

申请号：US18077755

申请日：2022-12-08

申请人： Eaton Intelligent Power Limited

发明人： James E. McCarthy, Jr. ,  Mihai Dorobantu

IPC分类号： B60W20/16 ,  B01D53/94 ,  B60W10/06 ,  B60W10/08 ,  F01N3/20 ,  F02D41/00 ,  F02D41/02

CPC分类号： B60W20/16 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9495 ,  B60W10/06 ,  B60W10/08 ,  F01N3/2013 ,  F01N3/2033 ,  F01N3/2066 ,  F01N3/208 ,  F02D41/0087 ,  F02D41/024 ,  B60W2510/242

摘要： A method of heating an aftertreatment system includes fulfilling a vehicle drive load of a vehicle via an electrical drivetrain of a vehicle hybrid powertrain, wherein the vehicle hybrid powertrain comprises the electrical drivetrain and an internal combustion engine; while the electrical drivetrain is fulfilling the vehicle drive load, operating the internal combustion engine to generate airflow for transport of heat through the aftertreatment system; and directing a heat source to raise a temperature through a selective catalytic reduction (SCR) device of the aftertreatment system.

公开(公告)号：US11976603B2

公开(公告)日：2024-05-07

申请号：US18098907

申请日：2023-01-19

申请人： Volvo Truck Corporation

发明人： Martin Wilhelmsson ,  Dan Stenqvist ,  Irman Svraka

IPC分类号： F02D41/02 ,  F01N3/20 ,  F02D41/06 ,  F02N11/08

CPC分类号： F02D41/024 ,  F02D41/062 ,  F01N3/2006 ,  F01N2410/06 ,  F01N2900/04 ,  F01N2900/0412 ,  F01N2900/0418 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1404 ,  F01N2900/1626 ,  F02D2200/0802 ,  F02D2250/36 ,  F02N11/0855 ,  F02N2200/026

摘要： A method performed by a control unit in connection with a pre-heating process of an aftertreatment system for a combustion engine is provided. The control unit obtains a scheduled start time of the combustion engine. The control unit schedules a pre-heating of the aftertreatment system to be completed before the scheduled start time. The control unit detects a start of the combustion engine at an actual start time. In response to the detected start of the combustion engine, and using the actual and scheduled start times, the control unit determines whether the scheduled pre-heating of the aftertreatment system fulfils one or more success criteria. When the one or more success criteria are fulfilled, the control unit triggers a performance increase of the combustion engine.

公开(公告)号：US20240102427A1

公开(公告)日：2024-03-28

申请号：US18534627

申请日：2023-12-09

申请人： Volkswagen Aktiengesellschaft

发明人： Christopher GESSENHARDT ,  Karsten MICHELS

IPC分类号： F02D41/02 ,  F02B19/12 ,  F02D13/02 ,  F02D41/00 ,  F02P5/15

CPC分类号： F02D41/024 ,  F02B19/12 ,  F02D13/0249 ,  F02D41/008 ,  F02P5/1504

摘要： A method of heating a catalytic converter of an internal combustion engine, wherein the method comprises the steps of: igniting the gas charge in one of the cylinders in a range from 10° CA before ignition top dead center to 20° CA after ignition top dead center; and opening the exhaust valve of the cylinder exhaust of the cylinder in a range from 30° CA to 55° CA after ignition top dead center. The method allows the catalytic converter of the internal combustion engine to quickly reach operating temperature and thus contributes to the reduction of pollutant emissions. An internal combustion engine is also provided that is designed to carry out the method of the invention for heating a catalytic converter.

公开(公告)号：US20240035424A1

公开(公告)日：2024-02-01

申请号：US18268084

申请日：2020-12-18

申请人： NISSAN MOTOR CO., LTD.

发明人： Akio ASHIKAGA ,  Kazuki TANZAWA ,  Takeshi TSUYUKI

IPC分类号： F02D41/02 ,  F02P5/15

CPC分类号： F02D41/024 ,  F02P5/1506 ,  F02D2200/0804

摘要： An internal combustion engine is mounted for power generation in a series hybrid vehicle and has an exhaust system with an upstream-side catalytic converter and a downstream-side catalytic converter. After starting of the internal combustion engine, the operation of the internal combustion engine is continued, without stopping the internal combustion engine even when the power generation request ceases, until completion of the warm-up of both of the upstream-side catalytic converter and the downstream-side catalytic converter. The internal combustion engine is operated with ignition timing retardation during a first period from the starting of the internal combustion engine to the completion of the warm-up of the upstream-side catalytic converter. During a second period from the completion of the warm-up of the upstream-side catalytic converter to the completion of the warm-up of the downstream-side catalytic converter, the internal combustion engine is operated without ignition timing retardation.

公开(公告)号：US20230391313A1

公开(公告)日：2023-12-07

申请号：US17834193

申请日：2022-06-07

申请人： Cummins Inc.

发明人： Dat Duc Le ,  Carlos Alcides Lana ,  Kenneth M. Follen

IPC分类号： B60W20/16 ,  B60W10/06 ,  B60W10/08 ,  F02D41/02 ,  B60W10/26

CPC分类号： B60W20/16 ,  B60W10/06 ,  B60W10/08 ,  F02D41/024 ,  B60W10/26 ,  B60W2510/244 ,  F02D2200/0802

摘要： A series or range extender hybrid vehicle drive system is disclosed having a combustion engine with an exhaust aftertreatment device, a motor/generator, an electrical energy storage and a traction motor. The traction motor is driven using power from the energy storage and/or the engine. A controller of the system is operable to receive input data representative of a requested power from the drive system, a state of charge indication of the electrical energy storage and at least one of the oxygen level in exhaust gas from the engine and temperature in the exhaust gas. The controller is also operable to provide output signals to control torque and speed of the engine and motor/generator to minimize exhaust emissions output and any tracking error of the state of charge of the energy storage to a desired target.

公开(公告)号：US20230383707A1

公开(公告)日：2023-11-30

申请号：US18231505

申请日：2023-08-08

申请人： Cummins Emission Solutions Inc.

发明人： Matthew K. Volmerding ,  Simon Guest

IPC分类号： F02D41/02 ,  F02D41/04 ,  F01N3/32 ,  F01N3/20 ,  F02D41/06 ,  F02B37/12 ,  F01N3/021

CPC分类号： F02D41/024 ,  F02D41/042 ,  F01N3/32 ,  F01N3/2013 ,  F01N3/2033 ,  F02D41/062 ,  F02B37/12 ,  F01N3/021 ,  F01N3/208 ,  F02B37/04

摘要： A controller for an aftertreatment system coupled to an engine is configured to: in response to receiving an engine shutdown signal, determine an estimated amount of ammonia stored on a selective catalytic reduction (SCR) catalyst included in the aftertreatment system; in response to determining that the estimated amount of ammonia stored in the SCR catalyst is less than an ammonia storage threshold, cause flow of a heated gas towards the SCR catalyst; cause insertion of a reductant into an exhaust gas flowing through the aftertreatment system; and in response to determining that the estimated amount of ammonia stored in the SCR catalyst is equal to or greater than the ammonia storage threshold, cause shutdown of the engine.

公开(公告)号：US11802519B1

公开(公告)日：2023-10-31

申请号：US17987700

申请日：2022-11-15

申请人： Cummins Inc. ,  Tula Technology, Inc.

发明人： Aaron William Beinborn ,  J. Steven Kolhouse ,  David J. Langenderfer ,  David Schmidt

IPC分类号： F02D41/40 ,  F02D41/00 ,  F02D41/02 ,  F02D41/22 ,  F02D13/02

CPC分类号： F02D41/0087 ,  F02D13/0207 ,  F02D41/024 ,  F02D41/22 ,  F02D41/401 ,  F02D2200/10

摘要： Systems and methods for bypassing a compromised engine cylinder via cylinder deactivation are described according to various embodiments herein. A system includes an engine coupled to a controller. The controller includes at least one processor and at least one memory coupled to the at least one processor. The at least one memory stores instructions that, when executed by the at least one processor, cause the controller to: determine that one or more cylinders of a plurality of cylinders of the engine is compromised based on data regarding operation of the engine; and cause the engine to operate in the modified engine operating mode whereby operation of the one or more cylinders that are compromised is modified.