US3744461A - Method and means for reducing exhaust smoke in i.c.engines - Google Patents

Method and means for reducing exhaust smoke in i.c.engines Download PDF

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Publication number
US3744461A
US3744461A US00177569A US3744461DA US3744461A US 3744461 A US3744461 A US 3744461A US 00177569 A US00177569 A US 00177569A US 3744461D A US3744461D A US 3744461DA US 3744461 A US3744461 A US 3744461A
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United States
Prior art keywords
fuel
electrode
exhaust
control
engine
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Expired - Lifetime
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US00177569A
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English (en)
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J Davis
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Ricardo PLC
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Ricardo and Co Engineers 1927 Ltd
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    • 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
    • F02D41/1466—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 a soot concentration or content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/38—Control for minimising smoke emissions, e.g. by applying smoke limitations on the fuel injection amount
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/02—Controlling by changing the air or fuel supply
    • F02D2700/0269—Controlling by changing the air or fuel supply for air compressing engines with compression ignition
    • F02D2700/0282—Control of fuel supply
    • F02D2700/0284—Control of fuel supply by acting on the fuel pump control element
    • F02D2700/0294—Control of fuel supply by acting on the fuel pump control element depending on another parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/09—Other ways of controlling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor

Definitions

  • An internal combustion engine having a fuel pump whose control rack is provided with an adjustable stop for limiting the maximum quantity of fuel delivered to the engine, is provided with an electrohydraulic control circuit coupled to the said stop for automatic reduction of the maximum fuel delivery in response to the occurrence of an increase in smoke density in the gaseous exhaust from the engine exhaust duct.
  • An electrode assembly mounted in the exhaust duct and insulated therefrom receives an electrical charge ,from the charged carbon smoke particles impinging upon it, and the resultant potential developing on the electrode is continuously measured as a signal dependent upon exhaust smoke density, and is supplied as an input signal to the electrohydraulic control circuit.
  • the output member of the control circuit is a hydraulic plunger whose movable member comprises the said adjustable stop.
  • PATENIEU JUL 0-1915 sum 2 or 4 5 k ,ow qlm M 5 mm H l! 9 w W I: R Nm/ 1 WT /mm mm R i 5 mm.
  • an object of the present invention is to enable the exhaust smoke level to be restricted to a low value over a prolonged period of running of an engine under varying conditions, for example under different traffic conditions in the case of the engine of a road vehicle.
  • means for reducing exhaust smoke emission from an internal combustion engine having a fuel control by which the quantity, of fuel delivered to the engine for combustion is con trolled comprises a device for measuring th'e density of smoke in the gaseous exhaust discharged from the ex haust duct of the engine, the device being constructed and arranged to provide'an Output signal dependent upon the exhaust smoke density, and control means responsive to the said output signal and constructed arranged for coupling to the fuel control to adjust the,
  • FIG. 1 is a view in longitudinal section of an electrode arrangement attached to the exhaust duct of an LC. engine
  • FIG. 2 is anend view bathe arrangement as seen in the direction of the arrow II in FIG. 1;
  • FIG. 3 is a diagram showing the engine, and the electrohydraulic control circuit which interconnects the electrode arrangement of its exhaust duct and the rack f p im, Y
  • FIG. 4 is acircuit'diagram showing the details of the electrohydraulie control circuit of FIG. 3;
  • I 6 is a cross-section on theiiheVI-Vl of FIG. I
  • an LC. engine of the liquid-fuelinjection, compression-ignition kind through it's exhaustduct 11 includes anelect'rode assembly 12 comprising a cruciform spider 13 made of sheet rnetal and enclosed in a tubular sheetrnetal cylinder which is provided with four supporting straps 1 5of U shape.
  • a circumferential flange 16 is welded to the exterior of the exhaust duct 1 1 nearits open discharge end 17, and carries four electrically insulating supporting posts 18 to which the outer ends of the four straps are se-
  • this'electrode device depends upon the principle that when carbon particles are emitted in an LC. engine exhaust they are electrically charged, and a sample of this charge can be collected on the electrode, andthe accumulated potential of the electrode can be measured and utilised as an output signal-for controlling the maximum fuel delivery in inverse dependence on the concentration of carbon particles in the emission.
  • the invention comprises a method of operating an internal combustion engine with reduction in exhaust smoke density, which method comprises obtaining a continuous measurement of smoke density in the exhaust gasdischarged from the cngine,deriving' from the said measurement a control signal dependentupon the said smoke'density, and utilising the control signal to adjust thequantity of fuel delivered to the engine for combustion; the fuel delivery being automatically adjusted in inverse dependence upon the measurement of smoke density.
  • the electrode assemblylz is connected electrically to an electrical measuring circuit, which as shown in FIGS. 3 and comprises an'electrometer valve-20. in an amplifier circuit'21"by"whicli the potential of the change collectinglon the electrode assembly 12 from the carbon particles in the exhaust emission can be measured continuously;
  • the electrode assembly 12 which may insome cases'have a positive'o r a negative biassing potential applied between it and theexhaust duct'lo, as indicated diagrammatically at 19in FIG. 4, isconnected to the gridof the'electroineter triode valve 20, and the exhaustduct 11 is connected to thereturn line 22 of the cathode circuit.
  • a gridre'sistor 23 is connected between the. grid of the valve 20 and the oath: ode return line-22.
  • a suitable anode potential is'applied to the anode of the valve 20 from a lo-volthattery 24, and the potential developing across a-series resistor 25 in the cathode circuit is applied toterminals 26, in series with cells 27 providing a back-off potential of 2.7 volts.
  • a smoothing capacitor 28 is connected in parallel across the terminals 26to adjust the response time.
  • the terminals 26 are connected to an electrohydraulic control circuit comprising a power amplifier 29 which actuates athree-way electrohydraulic valve 30 controlling a hydraulic actuator34.
  • Theelectrovalve g has alternative deliveryports,"one of which is.con-
  • the plu'ngcr34A of the hydraulic actuator 34 forms a variable stop'for the fuel rack 36 of the fuel injection pump 37 of the engine 10, such that an increase in the electrical signal from the amplifier 29 resulting from an increase in the level of smoke in the exhaust gases actuates the valve 30 to cause the actuator 34 to reduce the available travel of the fuel in the embodiment of FIGSJ to 4, a device for mearack 36, so controlling the maximum fuel delivery that the level of smoke is reduced. ln this way a continuous monitoring of the exhaust smoke density is performed accompanied by a continuous and automatic adjustment of the maximum fuel delivery quantity to maintain a reduced smoke density.
  • Both the exhaust pipe 11 and the insulated electrode assembly 12 constitute collector electrodes on which these charges will accumulate, and they can be polarised either way, or not at all, depending on circumstances. Thus if a high potential difference 19 is applied between the exhaust duct 11 and the insulated electrode 12 this will give greater sensitivity, due to the greater attraction of the respective charges, but will lead to insulation problems which can be avoided if a low biassing potential difference 19 or none at all is used.
  • the carbon particles in the exhaust gases are collected on the collector electrode assembly 12 by an impaction process, and give up their charge to the electrode assembly 12.
  • the negative ions in the gas stream do not readily penetrate and pass through the stagnant boundary layer on the collector electrode 12.
  • the electrical measuring circuit to which the electrode assembly is connected may be one employing a semi-conductor device, for example a fieldeffect transistor, instead of the triode valve 21.
  • the field-effect transistor has the advantage of greater sensitivity and is less microphonic under vibration.
  • FIGS. and 6 show another form of collector electrode 40 which may be used in the apparatus of FIGS. 1 to 4 in place of the electrode assembly 12.
  • the collector 40 comprises an open-ended frusto-conical sheet metal electrode 41 which is supported by means of the U-shaped supporting straps close to the mouth of the exhaust duct 11 with its smaller end directed inwardly.
  • the smaller end of the electrode 41 is of the same diameter as the mouth of the exhaust duct 11 and is positioned close to the mouth of the duct but without making contact therewith, so that the whole of the exhaust emission from the duct passes through the interior of the electrode 41.
  • a collector arrangement in the form of a series of axially-spaced transverse grids 42 of metal gauze is fitted in the interior of the electrode 41.
  • Each gauze sheet 42 extends across the whole of the internal cross-section of the electrode 41 and is connected electrically to the electrode at its perphery.
  • the grids are formed with multiple square holes each three thirty-seconds inch in size.
  • Means for reducing exhaust smoke emission from an internal-combustion engine having a fuel control by which the quantity of fuel delivered to the engine for combustion is controlled which means comprises a device for measuring the density of smoke in the gaseous exhaust discharged from the exhaust duct of the engine, the said device providing an output signal dependent upon the exhaust smoke density, said device including an electrode supported by an electricallyinsulating mounting adapted to locate the electrode in the path of the exhaust gases delivered through the exhaust duct, and an electrical measuring circuit to whose input the electrode is connected and which produces an electrical output signal corresponding to the electrical potential developed on the electrode by the impaction therewith of charged carbon particles in the exhaust gas, and control means responsive to the said output signal and arranged to adjust the fuel control automatically in response to the output signal in such a way as to adjust the fuel delivery in inverse dependence upon the measurement of exhaust smoke density.
  • control means responsive to the output signal comprises an electrohydraulic control circuit having a hydraulicallyactuated output member coupled to the fuel control.
  • An internal combustion engine having a movable fuel control member, and having an exhaust-duct and an electrode supported by an electrically-insulating mounting in the path of exhaust gas delivered through the said exhaust gas duct, as electrical measuring circuit to whose input the electrode is connected and which produces an electrical output signal corresponding to the electrical potential developed on the electrode by the impaction therewith of charged carbon particles in the exhaust gas, said output signal constituting a measurement of smoke density in the said exhaust gas, and control means responsive to the said output signal and operatively associated with the fuel control member, said control means automatically adjusting the travel of the fuel control member in the direction of increased delivery and thereby regulating the maximum fuel delivery in inverse dependence on the said measurement of smoke density.
  • An internal combustion engine of the liquid-fuelinjection type having a fuel injection pump with a movable fuel delivery control member, and having an exhaust duct, and an electrode supported by an electrically-insulating mounting in the path of exhaust gas delivered through the said exhaust gas duct, an electrical measuring circuit to whose input the electrode is connected and which produces an electrical output signal corresponding to the electrical potential developed on the electrode by the impaction therewith of charged carbon particles in the exhaust gas, said output signal constituting a measurement of smoke density in the said exhaust gas, and control means responsive to the said output signal and operatively associated with the fuel control delivery member, said control means including an electrohydraulic control valve responsive to the output signal of the measuring circuit, and a hydraulic actuator controlled by said valve, the hydraulic actuator being mounted adjacent to the fuel injection pump so that its movable member constitutes a movable stop which limits the travel of the fuel control member in the direction of increased delivery in an adjustable manner, and thereby regulates the maximum fuel delivery in inverse dependence upon said measure ment of smoke density.
  • a method of operating an internal combustion engine with reduction of exhaust smoke emission which comprises obtaining a continuous measurement of smoke density in the exhaust gas discharged from the engine by positioning an electrode in the path of the exhaust gas emission from the engine and measuring the electrical potential developing in the electrode as a result of the impaction of charged carbon particles thereon, deriving from the said measurement a control signal dependent upon the said smoke density, and utilising the control signal to adjust the quantity of fuel delivered to the engine for combustion, the fuel delivery being automatically adjusted in inverse dependence upon the measurement of smoke density.
  • a method as claimed in claim 6 in which the engine is of the liquid-fuel-injection type having a fuel injection pump with a movable delivery control member, and in which the electrohydraulic control circuit includes as its output member a hydraulic actuator whose movable member is utilised as an adjustable stop to limit the travel of the delivery control member in the direction of increased fuel delivery.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
US00177569A 1970-09-04 1971-09-03 Method and means for reducing exhaust smoke in i.c.engines Expired - Lifetime US3744461A (en)

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GB4248770A GB1356565A (en) 1970-09-04 1970-09-04 Limitting exhaust smoke emission from i c engines

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Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088096A (en) * 1976-02-16 1978-05-09 Alfa Romeo S.P.A. Internal combustion engine comprising an exhaust system provided with probes for exhaust gas analysis
FR2469569A1 (fr) * 1979-11-07 1981-05-22 Bosch Gmbh Robert Procede et dispositif pour le reglage du coefficient d'air lambda dans un moteur diesel a auto-allumage
US4359984A (en) * 1979-05-25 1982-11-23 Kiyoharu Nakao Fuel control device for diesel engine
US4364351A (en) * 1981-05-18 1982-12-21 General Motors Corporation Diesel engine fuel limiting system
US4372270A (en) * 1975-12-06 1983-02-08 Robert Bosch Gmbh Method and apparatus for controlling the composition of the combustible mixture of an engine
JPS5994061A (ja) * 1982-10-04 1984-05-30 アムバツク・インダストリ−ズ・インコ−ポレイテツド 内燃機関の作動特性の指示装置及び作動特性の指示による燃料噴射器の相対的性能の分析方法
EP0105828A3 (en) * 1982-10-04 1985-03-20 Ambac Industries, Inc. Method and apparatus for controlling diesel engine exhaust gas recirculation partly as a function of exhaust particulate level
WO1986000961A1 (fr) * 1984-08-01 1986-02-13 Robert Bosch Gmbh Procede de mesure et de reglage des caracteristiques de marche d'un moteur a combustion
EP0148107A3 (en) * 1983-12-27 1986-03-05 Ail Corporation Method and apparatus for torque control of an internal combustion engine as a function of exhaust smoke level
DE3839348A1 (de) * 1987-11-23 1989-06-01 Bosch Gmbh Robert Vorrichtung zur messung der partikelbelastung im rauch- und abgas eines verbrennungsprozesses
US20060101812A1 (en) * 2004-11-18 2006-05-18 Vladimir Havlena Exhaust catalyst system
US20060117750A1 (en) * 2004-12-07 2006-06-08 Shahed Syed M EGR system
US20060137340A1 (en) * 2004-12-29 2006-06-29 Stewart Gregory E Method and system for using a measure of fueling rate in the air side control of an engine
US20060137335A1 (en) * 2004-12-29 2006-06-29 Stewart Gregory E Pedal position and/or pedal change rate for use in control of an engine
US20060137347A1 (en) * 2004-12-29 2006-06-29 Stewart Gregory E Coordinated multivariable control of fuel and air in engines
US20060168945A1 (en) * 2005-02-02 2006-08-03 Honeywell International Inc. Aftertreatment for combustion engines
US20060213184A1 (en) * 2005-03-24 2006-09-28 Honyewll International Inc. Engine exhaust heat exchanger
US20060287795A1 (en) * 2005-06-17 2006-12-21 Tariq Samad Distributed control architecture for powertrains
US7155334B1 (en) 2005-09-29 2006-12-26 Honeywell International Inc. Use of sensors in a state observer for a diesel engine
US20070089399A1 (en) * 2005-10-21 2007-04-26 Honeywell International Inc. System for particulate matter sensor signal processing
US20070089715A1 (en) * 2005-10-26 2007-04-26 Honeywell International Inc. Exhaust gas recirculation system
US20070101977A1 (en) * 2004-12-29 2007-05-10 Honeywell International Inc. Method and system for using a measure of fueling rate in the air side control of an engine
US20070144149A1 (en) * 2005-12-28 2007-06-28 Honeywell International Inc. Controlled regeneration system
US20070156363A1 (en) * 2005-12-29 2007-07-05 Stewart Gregory E Calibration of engine control systems
US7328577B2 (en) 2004-12-29 2008-02-12 Honeywell International Inc. Multivariable control for an engine
US7389773B2 (en) 2005-08-18 2008-06-24 Honeywell International Inc. Emissions sensors for fuel control in engines
US8265854B2 (en) 2008-07-17 2012-09-11 Honeywell International Inc. Configurable automotive controller
US8504175B2 (en) 2010-06-02 2013-08-06 Honeywell International Inc. Using model predictive control to optimize variable trajectories and system control
US8620461B2 (en) 2009-09-24 2013-12-31 Honeywell International, Inc. Method and system for updating tuning parameters of a controller
US9650934B2 (en) 2011-11-04 2017-05-16 Honeywell spol.s.r.o. Engine and aftertreatment optimization system
US9677493B2 (en) 2011-09-19 2017-06-13 Honeywell Spol, S.R.O. Coordinated engine and emissions control system
US10036338B2 (en) 2016-04-26 2018-07-31 Honeywell International Inc. Condition-based powertrain control system
US10124750B2 (en) 2016-04-26 2018-11-13 Honeywell International Inc. Vehicle security module system
US10235479B2 (en) 2015-05-06 2019-03-19 Garrett Transportation I Inc. Identification approach for internal combustion engine mean value models
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Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32301E (en) * 1975-12-06 1986-12-09 Robert Bosch Gmbh Method and apparatus for controlling the composition of the combustible mixture of an engine
US4372270A (en) * 1975-12-06 1983-02-08 Robert Bosch Gmbh Method and apparatus for controlling the composition of the combustible mixture of an engine
US4426987A (en) 1975-12-06 1984-01-24 Robert Bosch Gmbh Method and apparatus for controlling the composition of the combustible mixture of an engine
US4088096A (en) * 1976-02-16 1978-05-09 Alfa Romeo S.P.A. Internal combustion engine comprising an exhaust system provided with probes for exhaust gas analysis
US4359984A (en) * 1979-05-25 1982-11-23 Kiyoharu Nakao Fuel control device for diesel engine
FR2469569A1 (fr) * 1979-11-07 1981-05-22 Bosch Gmbh Robert Procede et dispositif pour le reglage du coefficient d'air lambda dans un moteur diesel a auto-allumage
US4364351A (en) * 1981-05-18 1982-12-21 General Motors Corporation Diesel engine fuel limiting system
EP0110802A3 (en) * 1982-10-04 1985-01-23 Ambac Industries, Inc. Method and apparatus for indicating an operating characteristic of an internal combustion engine
EP0105828A3 (en) * 1982-10-04 1985-03-20 Ambac Industries, Inc. Method and apparatus for controlling diesel engine exhaust gas recirculation partly as a function of exhaust particulate level
EP0110802A2 (en) 1982-10-04 1984-06-13 Ail Corporation Method and apparatus for indicating an operating characteristic of an internal combustion engine
JPS5994061A (ja) * 1982-10-04 1984-05-30 アムバツク・インダストリ−ズ・インコ−ポレイテツド 内燃機関の作動特性の指示装置及び作動特性の指示による燃料噴射器の相対的性能の分析方法
EP0148107A3 (en) * 1983-12-27 1986-03-05 Ail Corporation Method and apparatus for torque control of an internal combustion engine as a function of exhaust smoke level
US4601270A (en) * 1983-12-27 1986-07-22 United Technologies Diesel Systems, Inc. Method and apparatus for torque control of an internal combustion engine as a function of exhaust smoke level
WO1986000961A1 (fr) * 1984-08-01 1986-02-13 Robert Bosch Gmbh Procede de mesure et de reglage des caracteristiques de marche d'un moteur a combustion
DE3839348A1 (de) * 1987-11-23 1989-06-01 Bosch Gmbh Robert Vorrichtung zur messung der partikelbelastung im rauch- und abgas eines verbrennungsprozesses
US7743606B2 (en) 2004-11-18 2010-06-29 Honeywell International Inc. Exhaust catalyst system
US20060101812A1 (en) * 2004-11-18 2006-05-18 Vladimir Havlena Exhaust catalyst system
US20060117750A1 (en) * 2004-12-07 2006-06-08 Shahed Syed M EGR system
US7182075B2 (en) 2004-12-07 2007-02-27 Honeywell International Inc. EGR system
US20060137340A1 (en) * 2004-12-29 2006-06-29 Stewart Gregory E Method and system for using a measure of fueling rate in the air side control of an engine
US20060137335A1 (en) * 2004-12-29 2006-06-29 Stewart Gregory E Pedal position and/or pedal change rate for use in control of an engine
USRE44452E1 (en) 2004-12-29 2013-08-27 Honeywell International Inc. Pedal position and/or pedal change rate for use in control of an engine
US7165399B2 (en) 2004-12-29 2007-01-23 Honeywell International Inc. Method and system for using a measure of fueling rate in the air side control of an engine
US20060137347A1 (en) * 2004-12-29 2006-06-29 Stewart Gregory E Coordinated multivariable control of fuel and air in engines
US7328577B2 (en) 2004-12-29 2008-02-12 Honeywell International Inc. Multivariable control for an engine
US20070101977A1 (en) * 2004-12-29 2007-05-10 Honeywell International Inc. Method and system for using a measure of fueling rate in the air side control of an engine
US7591135B2 (en) 2004-12-29 2009-09-22 Honeywell International Inc. Method and system for using a measure of fueling rate in the air side control of an engine
US7467614B2 (en) 2004-12-29 2008-12-23 Honeywell International Inc. Pedal position and/or pedal change rate for use in control of an engine
US7275374B2 (en) 2004-12-29 2007-10-02 Honeywell International Inc. Coordinated multivariable control of fuel and air in engines
US20060168945A1 (en) * 2005-02-02 2006-08-03 Honeywell International Inc. Aftertreatment for combustion engines
US20060213184A1 (en) * 2005-03-24 2006-09-28 Honyewll International Inc. Engine exhaust heat exchanger
US7752840B2 (en) 2005-03-24 2010-07-13 Honeywell International Inc. Engine exhaust heat exchanger
US20060287795A1 (en) * 2005-06-17 2006-12-21 Tariq Samad Distributed control architecture for powertrains
US7469177B2 (en) 2005-06-17 2008-12-23 Honeywell International Inc. Distributed control architecture for powertrains
US20080249697A1 (en) * 2005-08-18 2008-10-09 Honeywell International Inc. Emissions sensors for fuel control in engines
US7878178B2 (en) 2005-08-18 2011-02-01 Honeywell International Inc. Emissions sensors for fuel control in engines
US7389773B2 (en) 2005-08-18 2008-06-24 Honeywell International Inc. Emissions sensors for fuel control in engines
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GB1356565A (en) 1974-06-12

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