GB2509620A - System for calibrating EGR pressure sensing systems - Google Patents

System for calibrating EGR pressure sensing systems Download PDF

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Publication number
GB2509620A
GB2509620A GB1401435.1A GB201401435A GB2509620A GB 2509620 A GB2509620 A GB 2509620A GB 201401435 A GB201401435 A GB 201401435A GB 2509620 A GB2509620 A GB 2509620A
Authority
GB
United Kingdom
Prior art keywords
calibrating
pressure sensing
egr
sensing systems
egr pressure
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB1401435.1A
Other versions
GB201401435D0 (en
GB2509620B (en
Inventor
Adam Jonathan Stubbs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Perkins Engines Co Ltd
Original Assignee
Perkins Engines Co Ltd
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 Perkins Engines Co Ltd filed Critical Perkins Engines Co Ltd
Publication of GB201401435D0 publication Critical patent/GB201401435D0/en
Publication of GB2509620A publication Critical patent/GB2509620A/en
Application granted granted Critical
Publication of GB2509620B publication Critical patent/GB2509620B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2474—Characteristics of sensors
    • 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]
    • F02D41/0077—Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position
    • 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
    • F02D41/1448—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 exhaust gas pressure
    • 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
    • F02D41/1448—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 exhaust gas pressure
    • F02D41/145—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 exhaust gas pressure with determination means using an estimation
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/45—Sensors specially adapted for EGR systems
    • F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
    • F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/49—Detecting, diagnosing or indicating an abnormal function of the EGR system
    • 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

A method of controlling EGR in an engine system comprises the steps of determining a differential pressure across an EGR valve (26) using an EGR pressure sensing system (28,30), comparing the determined differential pressure across an EGR valve (26) to an expected differential pressure across the EGR valve (26), and calibrating the EGR pressure sensing system (28,30) based on the comparison while the engine system is in operation.
GB1401435.1A 2011-08-26 2012-08-28 System for calibrating EGR pressure sensing systems Expired - Fee Related GB2509620B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161528064P 2011-08-26 2011-08-26
PCT/GB2012/052105 WO2013030562A1 (en) 2011-08-26 2012-08-28 System for calibrating egr pressure sensing systems

Publications (3)

Publication Number Publication Date
GB201401435D0 GB201401435D0 (en) 2014-03-12
GB2509620A true GB2509620A (en) 2014-07-09
GB2509620B GB2509620B (en) 2018-09-26

Family

ID=46924500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1401435.1A Expired - Fee Related GB2509620B (en) 2011-08-26 2012-08-28 System for calibrating EGR pressure sensing systems

Country Status (2)

Country Link
GB (1) GB2509620B (en)
WO (1) WO2013030562A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9267453B2 (en) 2013-08-22 2016-02-23 Ford Global Technologies, Llc Learning of EGR valve lift and EGR valve flow transfer function
US9797343B2 (en) 2013-11-08 2017-10-24 Ford Global Technologies, Llc Determining exhaust gas recirculation cooler fouling using DPOV sensor
US9441564B2 (en) 2014-04-14 2016-09-13 Ford Global Technologies, Llc Methods and systems for adjusting EGR based on an impact of PCV hydrocarbons on an intake oxygen sensor
US9234476B2 (en) 2014-04-14 2016-01-12 Ford Global Technologies, Llc Methods and systems for determining a fuel concentration in engine oil using an intake oxygen sensor
GB2583337A (en) * 2019-04-23 2020-10-28 Delphi Automotive Systems Lux Method of determining a fault in an engine with EGR
GB2583336A (en) * 2019-04-23 2020-10-28 Delphi Automotive Systems Lux Method of determining a fault in an engine with EGR
US11143124B2 (en) 2020-02-20 2021-10-12 Ford Global Technologies, Llc Systems and methods for exhaust gas recirculation valve calibration

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6363922B1 (en) * 2000-10-11 2002-04-02 Detroit Diesel Corp Exhaust gas recirculation pressure differential sensor error compensation
US20040159099A1 (en) * 2003-02-13 2004-08-19 Denso Corporation Exhaust emission control device for internal combustion engine
JP2008038661A (en) * 2006-08-02 2008-02-21 Toyota Motor Corp Exhaust emission control system of internal combustion engine
US7474954B1 (en) * 2007-08-23 2009-01-06 Detroit Diesel Corporation EGR differential pressure sensor auto calibration method
WO2011052066A1 (en) * 2009-10-30 2011-05-05 トヨタ自動車株式会社 Control system for internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6363922B1 (en) * 2000-10-11 2002-04-02 Detroit Diesel Corp Exhaust gas recirculation pressure differential sensor error compensation
US20040159099A1 (en) * 2003-02-13 2004-08-19 Denso Corporation Exhaust emission control device for internal combustion engine
JP2008038661A (en) * 2006-08-02 2008-02-21 Toyota Motor Corp Exhaust emission control system of internal combustion engine
US7474954B1 (en) * 2007-08-23 2009-01-06 Detroit Diesel Corporation EGR differential pressure sensor auto calibration method
WO2011052066A1 (en) * 2009-10-30 2011-05-05 トヨタ自動車株式会社 Control system for internal combustion engine

Also Published As

Publication number Publication date
WO2013030562A1 (en) 2013-03-07
GB201401435D0 (en) 2014-03-12
GB2509620B (en) 2018-09-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190828