CA2402173A1 - Intelligent electric actuator for control of a turbocharger with an integrated exhaust gas recirculation valve - Google Patents

Intelligent electric actuator for control of a turbocharger with an integrated exhaust gas recirculation valve Download PDF

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Publication number
CA2402173A1
CA2402173A1 CA002402173A CA2402173A CA2402173A1 CA 2402173 A1 CA2402173 A1 CA 2402173A1 CA 002402173 A CA002402173 A CA 002402173A CA 2402173 A CA2402173 A CA 2402173A CA 2402173 A1 CA2402173 A1 CA 2402173A1
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CA
Canada
Prior art keywords
turbocharger
controller
egr
exhaust gas
actuator
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
CA002402173A
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French (fr)
Other versions
CA2402173C (en
Inventor
Wayne Waszkiewicz
Christopher C. Greentree
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Honeywell International Inc
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Individual
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Publication date
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Publication of CA2402173A1 publication Critical patent/CA2402173A1/en
Application granted granted Critical
Publication of CA2402173C publication Critical patent/CA2402173C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
    • F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
    • 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
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
    • 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 exhaust gas recirculation (EGR) system for an engine with a variable geometry turbocharge (18) incorporates a master rotary electric actuator (REA)(50) with a microprocessor controller (53) receiving condition signals (46, 48a-e) from sensors (48) associated with the turbocharger and the engine control unit (ECU)(54) and positioning the turbine inlet nozzle (44) geometry of the turbocharger in response to a predetermined matrix of the condition signals. A slave REA (52) is connected through an internal processing unit (58) to the controller to position an EGR valve (34). The processing unit provides an actual position signal to the controller which responds with a desired position signal based on the predetermined condition signal matrix. The processing unit engages the slave REA to position the EGR valve.

Claims (5)

1. An Exhaust Gas Recirculation (EGR) system for an internal combustion engine comprising:
a turbocharger (16) having a variable geometry turbine inlet nozzle (44) receiving exhaust gas from an exhaust manifold (14);
an adjustable EGR valve (34) having an inlet connected to receive exhaust gas from the exhaust manifold;
a master actuator (50) with first adjusting means connecting to the variable geometry turbine inlet nozzle for adjustment thereof through a range of positions, said master actuator further having a controller (53) receiving a first plurality of turbocharger condition signals (46, 48a-e) and a second plurality of engine condition signals, the controller positioning the first adjusting means responsive to the first and second plurality of signals; and a slave actuator (52) with second adjusting means connecting to the EGR valve for adjustment thereof to at least an open position and a closed position, said slave actuator having a processing means (58) providing a current position signal to the controller of the master actuator and receiving from the controller a desired position signal responsive to the actual position signal and the first and second plurality of signals, the processing means positioning the second adjusting means responsive to the desired position signal.
2. An EGR system as defined in claim 1 wherein the first adjusting means comprises a rotary electric actuator connected through a crank arm (56) to the variable geometry inlet nozzle (44).
3. An EGR system as defined in claim 2 wherein the second adjusting means comprises a rotary electric actuator connected through a crank arm (60) to the EGR valve (34).
4. An EGR system as defined in claim 1 wherein the turbocharger condition signals are selected from the group of compressor inlet pressure, compressor inlet temperature, compressor outlet pressure, compressor outlet temperature, turbine inlet temperature, turbine inlet pressure, turbine outlet temperature, turbine outlet pressure, EGR pressure, EGR temperature and turbocharger shaft speed.
5. A method for controlling Exhaust Gas Recirculation (EGR) in an internal combustion engine having a variable geometry turbocharger, the method comprising the steps of:
receiving a plurality of turbocharger condition signals through a controller of a master actuator;
receiving a plurality of engine condition signals through the controller;
determining a desired setting for the variable geometry of the turbocharger based on a predetermined matrix of the turbocharger and engine condition signals;
controlling the geometry of the turbocharger to the desired setting with the master actuator;
providing an actual position signal of a slave actuator connected to an adjustable EGR valve through a processor to the controller;
determining a desired position of the EGR valve based on the predetermined matrix of turbocharger and engine conditions signals;
providing a desired position signal from the controller to the processor; and controlling the position of the EGR valve by the slave actuator through the processor.
CA002402173A 2000-03-03 2001-03-02 Intelligent electric actuator for control of a turbocharger with an integrated exhaust gas recirculation valve Expired - Fee Related CA2402173C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US18664800P 2000-03-03 2000-03-03
US60/186,648 2000-03-03
US09/791,140 US6360541B2 (en) 2000-03-03 2001-02-22 Intelligent electric actuator for control of a turbocharger with an integrated exhaust gas recirculation valve
US09/791,140 2001-02-22
PCT/US2001/006937 WO2001066925A1 (en) 2000-03-03 2001-03-02 Intelligent electric actuator for control of a turbocharger with an integrated exhaust gas recirculation valve

Publications (2)

Publication Number Publication Date
CA2402173A1 true CA2402173A1 (en) 2001-09-13
CA2402173C CA2402173C (en) 2009-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002402173A Expired - Fee Related CA2402173C (en) 2000-03-03 2001-03-02 Intelligent electric actuator for control of a turbocharger with an integrated exhaust gas recirculation valve

Country Status (7)

Country Link
US (1) US6360541B2 (en)
EP (1) EP1259717B1 (en)
JP (1) JP4625226B2 (en)
KR (1) KR100762110B1 (en)
CA (1) CA2402173C (en)
MX (1) MXPA02008550A (en)
WO (1) WO2001066925A1 (en)

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JP2004504523A (en) 2004-02-12
US20010032466A1 (en) 2001-10-25
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WO2001066925A1 (en) 2001-09-13
KR100762110B1 (en) 2007-10-01
EP1259717A1 (en) 2002-11-27
WO2001066925A8 (en) 2003-02-13
JP4625226B2 (en) 2011-02-02
EP1259717B1 (en) 2005-12-28
US6360541B2 (en) 2002-03-26
MXPA02008550A (en) 2003-03-12

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