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RU2015120224A - METHOD FOR DETERMINING THE ETHANOL CONTENT IN FUEL USING THE OXYGEN SENSOR (OPTIONS) - Google Patents

METHOD FOR DETERMINING THE ETHANOL CONTENT IN FUEL USING THE OXYGEN SENSOR (OPTIONS) Download PDF

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RU2015120224A
RU2015120224A RU2015120224A RU2015120224A RU2015120224A RU 2015120224 A RU2015120224 A RU 2015120224A RU 2015120224 A RU2015120224 A RU 2015120224A RU 2015120224 A RU2015120224 A RU 2015120224A RU 2015120224 A RU2015120224 A RU 2015120224A
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output signal
sensor
engine
fuel
oxygen
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RU2015120224A
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RU2015120224A3 (en
RU2691275C2 (en
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Гопичандра СУРНИЛЛА
Дэниэл А. МАКЛЕД
Ричард Е. СОЛТИС
Якобус Хендрик ВИССЕР
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Форд Глобал Текнолоджиз, Ллк
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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
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/085—Control based on the fuel type or composition
    • F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
    • F02D19/088—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels by estimation, i.e. without using direct measurements of a corresponding sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0626—Measuring or estimating parameters related to the fuel supply system
    • F02D19/0634—Determining a density, viscosity, composition or concentration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/084—Blends of gasoline and alcohols, e.g. E85
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/085—Control based on the fuel type or composition
    • F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
    • 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
    • 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
    • F02D41/1454—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 oxygen content or concentration or the air-fuel ratio
    • 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
    • F02D41/1454—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 oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—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 oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • F02D41/1493—Details
    • F02D41/1496—Measurement of the conductivity of a sensor
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    • 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
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    • 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
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    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F02M35/10393—Sensors for intake systems for characterising a multi-component mixture, e.g. for the composition such as humidity, density or viscosity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
    • G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
    • G01M15/104—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using oxygen or lambda-sensors
    • 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
    • F02B75/00—Other engines
    • F02B75/12—Other methods of operation
    • F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of intake and exhaust valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0611—Fuel type, fuel composition or fuel quality
    • F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
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    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
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    • 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
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
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  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

1. Способ управления двигателем, включающий в себя:при выбранных условиях приведение в действие датчика кислорода при более низком эталонном напряжении, при котором молекулы воды не диссоциируют, для выработки первого выходного сигнала и при более высоком эталонном напряжении, при котором молекулы воды полностью диссоциируют, для выработки второго выходного сигнала; инахождение поправочного коэффициента для датчика по первому и второму выходным сигналам.2. Способ по п. 1, дополнительно содержащий регулирование параметра по содержанию спирта в сжигаемом в двигателе топливе, оцененному и по первому выходному сигналу, и по найденному поправочному коэффициенту.3. Способ по п. 2, в котором параметр представляет собой требуемое воздушно-топливное отношение для сжигания в двигателе.4. Способ по п. 1, в котором первый выходной сигнал включает в себя первый ток накачки, выработанный в ответ на приведение в действие при более низком эталонном напряжении, а второй выходной сигнал включает в себя второй ток накачки, выработанный в ответ на приведение в действие при более высоком эталонном напряжении.5. Способ по п. 1, в котором первый выходной сигнал указывает содержание кислорода для влажного воздуха, а второй выходной сигнал указывает увеличение содержания кислорода в результате диссоциации влажного воздуха, причем ток накачки для сухого воздуха основан на отношении первого и второго выходных сигналов, и ток накачки для сухого воздуха указывает содержание кислорода для сухого воздуха.6. Способ по п. 1, в котором поправочный коэффициент представляет собой поправочный коэффициент для сухого воздуха, компенсирующий изменчивость показаний датчика,1. An engine control method, including: under selected conditions, activating an oxygen sensor at a lower reference voltage, at which the water molecules do not dissociate, to generate a first output signal and at a higher reference voltage, at which the water molecules completely dissociate, to generate a second output signal; finding the correction factor for the sensor on the first and second output signals. 2. The method according to claim 1, further comprising adjusting the parameter according to the alcohol content in the fuel burned in the engine, estimated by both the first output signal and the correction factor found. The method of claim 2, wherein the parameter is a desired air-fuel ratio for combustion in an engine. The method of claim 1, wherein the first output signal includes a first pump current generated in response to actuation at a lower reference voltage, and the second output signal includes a second pump current generated in response to actuation at higher reference voltage. 5. The method of claim 1, wherein the first output signal indicates the oxygen content for the moist air, and the second output signal indicates an increase in oxygen content as a result of the dissociation of the moist air, wherein the dry current pump current is based on the ratio of the first and second output signals and the pump current for dry air indicates the oxygen content for dry air. 6. The method of claim 1, wherein the correction factor is a correction factor for dry air, compensating for the variability of the sensor readings,

Claims (20)

1. Способ управления двигателем, включающий в себя:1. The method of controlling the engine, including: при выбранных условиях приведение в действие датчика кислорода при более низком эталонном напряжении, при котором молекулы воды не диссоциируют, для выработки первого выходного сигнала и при более высоком эталонном напряжении, при котором молекулы воды полностью диссоциируют, для выработки второго выходного сигнала; иunder the selected conditions, the activation of the oxygen sensor at a lower reference voltage, at which the water molecules do not dissociate, to generate a first output signal and at a higher reference voltage, at which the water molecules completely dissociate, to generate a second output signal; and нахождение поправочного коэффициента для датчика по первому и второму выходным сигналам.finding the correction factor for the sensor on the first and second output signals. 2. Способ по п. 1, дополнительно содержащий регулирование параметра по содержанию спирта в сжигаемом в двигателе топливе, оцененному и по первому выходному сигналу, и по найденному поправочному коэффициенту.2. The method according to claim 1, further comprising adjusting the parameter according to the alcohol content in the fuel burned in the engine, estimated by both the first output signal and the correction factor found. 3. Способ по п. 2, в котором параметр представляет собой требуемое воздушно-топливное отношение для сжигания в двигателе.3. The method of claim 2, wherein the parameter is a desired air-fuel ratio for combustion in an engine. 4. Способ по п. 1, в котором первый выходной сигнал включает в себя первый ток накачки, выработанный в ответ на приведение в действие при более низком эталонном напряжении, а второй выходной сигнал включает в себя второй ток накачки, выработанный в ответ на приведение в действие при более высоком эталонном напряжении.4. The method of claim 1, wherein the first output signal includes a first pump current generated in response to actuation at a lower reference voltage, and the second output signal includes a second pump current generated in response to the drive in action at a higher reference voltage. 5. Способ по п. 1, в котором первый выходной сигнал указывает содержание кислорода для влажного воздуха, а второй выходной сигнал указывает увеличение содержания кислорода в результате диссоциации влажного воздуха, причем ток накачки для сухого воздуха основан на отношении первого и второго выходных сигналов, и ток накачки для сухого воздуха указывает содержание кислорода для сухого воздуха.5. The method according to claim 1, in which the first output signal indicates the oxygen content for the moist air, and the second output signal indicates an increase in oxygen content as a result of the dissociation of the moist air, wherein the pump current for dry air is based on the ratio of the first and second output signals, and dry air pump current indicates the oxygen content of dry air. 6. Способ по п. 1, в котором поправочный коэффициент представляет собой поправочный коэффициент для сухого воздуха, компенсирующий изменчивость показаний датчика, и при этом нахождение поправочного коэффициента по первому и второму выходным сигналам включает в себя нахождение поправочного коэффициента исходя из отношения выходного сигнала эталонного датчика к отношению между первым и вторым выходными сигналами.6. The method according to claim 1, in which the correction factor is a correction factor for dry air, compensating for the variability of the sensor readings, while finding the correction coefficient for the first and second output signals includes finding the correction coefficient based on the ratio of the output signal of the reference sensor to the ratio between the first and second output signals. 7. Способ по п. 6, в котором эталонная передаточная функция содержания спирта датчика основана на выходном сигнале эталонного датчика.7. The method according to claim 6, in which the reference transfer function of the alcohol content of the sensor is based on the output signal of the reference sensor. 8. Способ по п. 7, в котором оценивание содержания спирта в топливе, как по первому выходному сигналу, так и по найденному поправочному коэффициенту включает в себя:8. The method according to p. 7, in which the estimation of the alcohol content in the fuel, both by the first output signal and by the found correction factor includes: регулирование эталонной передаточной функции содержания спирта датчика по найденному поправочному коэффициенту; иregulation of the reference transfer function of the alcohol content of the sensor according to the found correction factor; and применение отрегулированной передаточной функции содержания спирта к первому выходному сигналу датчика.applying the adjusted transfer function of the alcohol content to the first output signal of the sensor. 9. Способ по п. 1, в котором датчик кислорода представляет собой универсальный датчик содержания кислорода в отработавших газах, связанный с выпускным коллектором двигателя выше по потоку от каталитического нейтрализатора отработавших газов.9. The method according to claim 1, in which the oxygen sensor is a universal sensor for oxygen content in the exhaust gas associated with the exhaust manifold of the engine upstream of the catalytic converter. 10. Способ по п. 9, в котором выбранные условия включают в себя условия без снабжения двигателя топливом, и при этом условия без снабжения двигателя топливом включают себя событие выключения подачи топлива при замедлении.10. The method according to claim 9, in which the selected conditions include conditions without supplying the engine with fuel, and the conditions without supplying the engine with fuel include the event of a fuel cut-off during deceleration. 11. Способ по п. 1, в котором датчик кислорода представляет собой датчик содержания кислорода во впускном воздухе, связанный с впускным коллектором двигателя выше по потоку от впускного компрессора.11. The method according to p. 1, in which the oxygen sensor is a sensor of oxygen content in the intake air associated with the intake manifold of the engine upstream of the intake compressor. 12. Способ по п. 11, в котором выбранные условия включают в себя включение в работу РОГ и отсутствие приема во впускном коллекторе газов продувки или газов вентиляции картера.12. The method according to p. 11, in which the selected conditions include the inclusion in the operation of the EGR and the absence in the intake manifold of purge gases or crankcase ventilation gases. 13. Способ, включающий в себя:13. The method including: в условиях без снабжения двигателя топливом,in conditions without fuel supply to the engine, подачу на датчик содержания кислорода в отработавших газах как первого, более низкого напряжения, при котором молекулы воды не диссоциируют, так и второго, более высокого напряжения, при котором молекулы воды полностью диссоциируют;supplying to the sensor the oxygen content in the exhaust gases of both the first, lower voltage, at which the water molecules do not dissociate, and the second, higher voltage, at which the water molecules completely dissociate; нахождение поправочного коэффициента для датчика исходя из отношения первого и второго выходных сигналов, выработанных при подаче первого и второго напряжений соответственно, иfinding a correction factor for the sensor based on the ratio of the first and second output signals generated by applying the first and second voltages, respectively, and оценивание содержания этанола в сжигаемом в двигателе топливе путем применения найденного поправочного коэффициента к передаточной функции, основанной на первом выходном сигнале.estimating the ethanol content of the fuel burned in the engine by applying the found correction coefficient to the transfer function based on the first output signal. 14. Способ по п. 13, в котором условия без снабжения двигателя топливом включают в себя событие выключения подачи топлива при замедлении, а способ также включает в себя регулирование параметра работы двигателя по оцененному содержанию этанола в топливе, и при этом параметр включает в себя воздушно-топливное отношение для сжигания.14. The method according to p. 13, in which the conditions without supplying the engine with fuel include an event of fuel shutdown during deceleration, and the method also includes adjusting the engine operation parameter according to the estimated ethanol content in the fuel, and the parameter includes air -Fuel ratio for burning. 15. Способ по п. 13, в котором первый выходной сигнал включает в себя первый ток накачки, выработанный в ответ на подачу первого, более низкого напряжения, а второй выходной сигнал включает в себя второй ток накачки, выработанный в ответ на подачу второго, более высокого напряжения, причем первый и второй выходные сигналы указывают количество кислорода во влажном воздухе, и при этом первое, более низкое напряжение ниже среднего напряжения, а второе, более высокое напряжение выше среднего напряжения, среднее напряжение вырабатывает третий ток накачки, указывающий количество кислорода в сухом воздухе.15. The method according to p. 13, in which the first output signal includes a first pump current generated in response to a first, lower voltage, and a second output signal includes a second pump current generated in response to a second, more high voltage, and the first and second output signals indicate the amount of oxygen in moist air, and the first, lower voltage is lower than the average voltage, and the second, higher voltage is higher than the average voltage, the average voltage produces a third current akachki indicating the amount of oxygen in dry air. 16. Способ по п. 13, в котором датчик содержания кислорода в отработавших газах размещен выше по потоку от каталитического нейтрализатора отработавших газов и выше по потоку от входа канала РОГ, выполненного с возможностью рециркуляции остатков отработавших газов из выпускного коллектора во впускной коллектор двигателя.16. The method of claim 13, wherein the exhaust gas oxygen sensor is located upstream of the exhaust catalyst and upstream of the inlet of the EGR channel configured to recirculate exhaust gas residues from the exhaust manifold to the engine intake manifold. 17. Способ, включающий в себя:17. A method including: когда газы продувки и вентиляции картера не подают в двигатель,when the crankcase ventilation and ventilation gases are not supplied to the engine, подачу на датчик содержания кислорода во впускном воздухе первого, более низкого напряжения, при котором молекулы воды не диссоциируют и второго, более высокого напряжения, при котором молекулы воды полностью диссоциируют;supplying to the sensor the oxygen content in the intake air of a first, lower voltage, at which the water molecules do not dissociate and a second, higher voltage, at which the water molecules completely dissociate; нахождение поправочного коэффициента для датчика исходя из отношения первого и второго выходных сигналов, выработанных при подаче первого и второго напряжений соответственно, иfinding a correction factor for the sensor based on the ratio of the first and second output signals generated by applying the first and second voltages, respectively, and оценивание содержания этанола в сжигаемом в двигателе топливе путем применения найденного поправочного коэффициента к передаточной функции, основанной на первом выходном сигнале.estimating the ethanol content of the fuel burned in the engine by applying the found correction coefficient to the transfer function based on the first output signal. 18. Способ по п. 17, в котором первый выходной сигнал включает в себя первый ток накачки, выработанный в ответ на подачу первого, более низкого напряжения, первый выходной сигнал указывает количество кислорода во влажном воздухе, а второй выходной сигнал включает в себя второй ток накачки, выработанный в ответ на подачу второго, более высокого напряжения, второй выходной сигнал указывает увеличение содержания кислорода в результате диссоциации влаги, и при этом отношение между первым и вторым выходными сигналами указывает содержание кислорода в сухом воздухе.18. The method of claim 17, wherein the first output signal includes a first pump current generated in response to a first, lower voltage, the first output signal indicates the amount of oxygen in the humid air, and the second output signal includes a second current pumping, generated in response to a second, higher voltage, the second output signal indicates an increase in oxygen content as a result of moisture dissociation, and the ratio between the first and second output signals indicates the oxygen content and in the dry air. 19. Способ по п. 17, в котором датчик содержания кислорода во впускном воздухе размещен выше по потоку от впускного дросселя, и ниже по потоку от выхода канала РОГ, выполненного с возможностью рециркуляции остатков отработавшего газа из выпускного коллектора во впускной коллектор двигателя.19. The method according to p. 17, in which the oxygen content sensor in the intake air is located upstream of the inlet throttle and downstream of the outlet of the EGR channel, configured to recirculate the exhaust gas from the exhaust manifold to the engine intake manifold. 20. Способ по п. 19, также включающий в себя оценивание расхода РОГ в канал РОГ по отрегулированному выходному сигналу датчика содержания кислорода во впускном воздухе, основанному на выходном сигнале датчика содержания кислорода во впускном воздухе и найденном поправочном коэффициенте. 20. The method according to p. 19, also including estimating the flow rate of the EGR in the channel of the EGR by the adjusted output signal of the oxygen content sensor in the intake air, based on the output signal of the oxygen content sensor in the intake air and the found correction coefficient.
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US8495996B2 (en) * 2009-12-04 2013-07-30 Ford Global Technologies, Llc Fuel alcohol content detection via an exhaust gas sensor
US8763594B2 (en) * 2009-12-04 2014-07-01 Ford Global Technologies, Llc Humidity and fuel alcohol content estimation
US9181904B2 (en) 2010-08-10 2015-11-10 Ford Global Technologies, Llc Method and system for exhaust gas recirculation control
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