WO2008054588A3 - Engine emissions control system - Google Patents

Engine emissions control system Download PDF

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Publication number
WO2008054588A3
WO2008054588A3 PCT/US2007/020879 US2007020879W WO2008054588A3 WO 2008054588 A3 WO2008054588 A3 WO 2008054588A3 US 2007020879 W US2007020879 W US 2007020879W WO 2008054588 A3 WO2008054588 A3 WO 2008054588A3
Authority
WO
WIPO (PCT)
Prior art keywords
engine
control module
nitrogen oxide
electronic control
control system
Prior art date
Application number
PCT/US2007/020879
Other languages
French (fr)
Other versions
WO2008054588A2 (en
Inventor
William C Boley
Ryan E Meister
Stuart R Niese
Original Assignee
Caterpillar Inc
William C Boley
Ryan E Meister
Stuart R Niese
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Inc, William C Boley, Ryan E Meister, Stuart R Niese filed Critical Caterpillar Inc
Publication of WO2008054588A2 publication Critical patent/WO2008054588A2/en
Publication of WO2008054588A3 publication Critical patent/WO2008054588A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
    • F02D41/0052—Feedback control of engine parameters, e.g. for control of air/fuel ratio or intake air amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

An engine emissions control system includes an electronic control module (44) and a nitrogen oxide sensor (42) in communication with the electronic control module. The nitrogen oxide sensor is mounted on an exhaust system (32) of an engine (12) and is configured to provide the electronic control module with feedback indicative of an actual level of nitrogen oxide in an exhaust stream flowing through the exhaust system. The engine emissions control system also include an engine parameter adjustment assembly (28, 36, 50) controlled by the electronic control module. The electronic control module automatically actuate the engine parameter adjustment assembly to adjust an engine flow until the actual level of nitrogen oxide reaches a desired level of nitrogen oxide.
PCT/US2007/020879 2006-10-31 2007-09-27 Engine emissions control system WO2008054588A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/589,963 US20080104944A1 (en) 2006-10-31 2006-10-31 Engine emissions control system
US11/589,963 2006-10-31

Publications (2)

Publication Number Publication Date
WO2008054588A2 WO2008054588A2 (en) 2008-05-08
WO2008054588A3 true WO2008054588A3 (en) 2008-10-30

Family

ID=39032233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/020879 WO2008054588A2 (en) 2006-10-31 2007-09-27 Engine emissions control system

Country Status (2)

Country Link
US (1) US20080104944A1 (en)
WO (1) WO2008054588A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI124007B (en) * 2008-12-16 2014-01-31 Waertsilae Finland Oy Method and system for controlling combustion engine emissions
EP2761154A4 (en) * 2011-09-28 2016-01-06 Continental Controls Corp Automatic set point adjustment system and method for engine air-fuel ratio control system
US20160215686A1 (en) * 2016-04-05 2016-07-28 Caterpillar Inc. Method to control wastegate valve actuator of engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564283A (en) * 1993-09-30 1996-10-15 Honda Giken Kogyo Kabushiki Kaisha Exhaust emission control system in internal combustion engine
EP0896136A2 (en) * 1997-08-05 1999-02-10 Toyota Jidosha Kabushiki Kaisha Device for reactivating catalyst of engine
DE10101848A1 (en) * 2001-01-17 2004-02-05 Bayerische Motoren Werke Ag Process for regulating the combustion process in an IC engine, especially a lifting cylinder combustion engine, comprises returning part of the exhaust gas to the combustion chamber for further combustion
DE10334091A1 (en) * 2002-07-29 2004-02-26 Mitsubishi Fuso Truck And Bus Corp. Engine regulating system used in I.C. engines comprises a nitrogen oxides catalyst unit, a reducing agent feed line, nitrogen oxide sensors, a fuel injection system, and a regulating unit for activating the fuel injection system
US20040045280A1 (en) * 2001-02-05 2004-03-11 Toshihiko Nishiyama Exhaust gas deNOx apparatus for engine
DE10361286A1 (en) * 2003-12-24 2005-07-21 Daimlerchrysler Ag Process for the regeneration of a nitrogen oxide storage catalyst
WO2006039452A2 (en) * 2004-10-01 2006-04-13 Southwest Research Institute CLOSED LOOP ENGINE CONTROL FOR REGULATING NOx EMISSIONS, USING TWO-DIMENSIONSAL FUEL-AIR CURVE

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US4173205A (en) * 1977-11-28 1979-11-06 The Bendix Corporation Closed loop exhaust gas recirculation system
AT384279B (en) * 1986-03-05 1987-10-27 Jenbacher Werke Ag DEVICE FOR CONTROLLING THE COMBUSTION AIR RATIO IN A LASER OPERATING GAS ENGINE
US4887574A (en) * 1987-04-21 1989-12-19 Hitachi, Ltd. Control apparatus for internal combustion engines
US5319931A (en) * 1992-12-30 1994-06-14 General Electric Company Fuel trim method for a multiple chamber gas turbine combustion system
US5426934A (en) * 1993-02-10 1995-06-27 Hitachi America, Ltd. Engine and emission monitoring and control system utilizing gas sensors
US5949146A (en) * 1997-07-02 1999-09-07 Cummins Engine Company, Inc. Control technique for a lean burning engine system
US6931836B2 (en) * 1997-12-12 2005-08-23 Man Nutzfahrzeuge Ag Method for NOx reduction of externally-ignited, explosion, internal combustion engines
US6273076B1 (en) * 1997-12-16 2001-08-14 Servojet Products International Optimized lambda and compression temperature control for compression ignition engines
SE519908C2 (en) * 1998-03-20 2003-04-22 Volvo Car Corp Method and apparatus for controlling combustion engine
JP2000320371A (en) * 1999-05-10 2000-11-21 Toyota Motor Corp Air-fuel ratio control device for internal combustion engine
US6728675B1 (en) * 1999-06-03 2004-04-27 International Business Machines Corporatiion Data processor controlled display system with audio identifiers for overlapping windows in an interactive graphical user interface
JP3655145B2 (en) * 1999-10-08 2005-06-02 本田技研工業株式会社 Air-fuel ratio control device for multi-cylinder internal combustion engine
DE19957549C2 (en) * 1999-11-30 2002-04-25 Siemens Ag Anti-theft protection system for a motor vehicle and method for operating an anti-theft protection system
GB2375834B (en) * 2001-02-22 2005-06-15 Cummins Engine Co Inc Regulating speed of an internal combustion engine
US6581571B2 (en) * 2001-06-12 2003-06-24 Deere & Company Engine control to reduce emissions variability
US7277788B2 (en) * 2002-07-31 2007-10-02 Caterpillar Inc Charge density control for an internal combustion engine
US6779344B2 (en) * 2002-12-20 2004-08-24 Deere & Company Control system and method for turbocharged throttled engine
US6843054B2 (en) * 2003-01-16 2005-01-18 Arvin Technologies, Inc. Method and apparatus for removing NOx and soot from engine exhaust gas
US7062905B2 (en) * 2003-02-21 2006-06-20 Southwest Research Institute Control method for dual path NOx adsorber system
US7263823B2 (en) * 2004-05-27 2007-09-04 Cummins, Inc. System for measuring NOx content of exhaust gas
JP2006140072A (en) * 2004-11-15 2006-06-01 Hitachi Ltd Spark ignition device of internal combustion engine, and internal combustion engine equipped with the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564283A (en) * 1993-09-30 1996-10-15 Honda Giken Kogyo Kabushiki Kaisha Exhaust emission control system in internal combustion engine
EP0896136A2 (en) * 1997-08-05 1999-02-10 Toyota Jidosha Kabushiki Kaisha Device for reactivating catalyst of engine
DE10101848A1 (en) * 2001-01-17 2004-02-05 Bayerische Motoren Werke Ag Process for regulating the combustion process in an IC engine, especially a lifting cylinder combustion engine, comprises returning part of the exhaust gas to the combustion chamber for further combustion
US20040045280A1 (en) * 2001-02-05 2004-03-11 Toshihiko Nishiyama Exhaust gas deNOx apparatus for engine
DE10334091A1 (en) * 2002-07-29 2004-02-26 Mitsubishi Fuso Truck And Bus Corp. Engine regulating system used in I.C. engines comprises a nitrogen oxides catalyst unit, a reducing agent feed line, nitrogen oxide sensors, a fuel injection system, and a regulating unit for activating the fuel injection system
DE10361286A1 (en) * 2003-12-24 2005-07-21 Daimlerchrysler Ag Process for the regeneration of a nitrogen oxide storage catalyst
WO2006039452A2 (en) * 2004-10-01 2006-04-13 Southwest Research Institute CLOSED LOOP ENGINE CONTROL FOR REGULATING NOx EMISSIONS, USING TWO-DIMENSIONSAL FUEL-AIR CURVE

Also Published As

Publication number Publication date
WO2008054588A2 (en) 2008-05-08
US20080104944A1 (en) 2008-05-08

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