RU2011116932A - METHOD AND DEVICE FOR RECOGNIZING A KNOCKING KNOCK WHEN CHANGING THE OPERATION MODES OF THE INTERNAL COMBUSTION ENGINE - Google Patents

METHOD AND DEVICE FOR RECOGNIZING A KNOCKING KNOCK WHEN CHANGING THE OPERATION MODES OF THE INTERNAL COMBUSTION ENGINE Download PDF

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RU2011116932A
RU2011116932A RU2011116932/06A RU2011116932A RU2011116932A RU 2011116932 A RU2011116932 A RU 2011116932A RU 2011116932/06 A RU2011116932/06 A RU 2011116932/06A RU 2011116932 A RU2011116932 A RU 2011116932A RU 2011116932 A RU2011116932 A RU 2011116932A
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internal combustion
combustion engine
rkr
characterizing
reference level
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RU2011116932/06A
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Russian (ru)
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RU2528780C2 (en
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Штефан КЕМПЕ (DE)
Штефан КЕМПЕ
Йохен ГЁБЕЛЬС (DE)
Йохен ГЁБЕЛЬС
Зимон ЦОРН (DE)
Зимон ЦОРН
Оливер Роберт БОДО (DE)
Оливер Роберт БОДО
Паскаль ФЁРМЕР (DE)
Паскаль ФЁРМЕР
Ульрих ЛАНГ (DE)
Ульрих Ланг
Тимо ЯН (DE)
Тимо ЯН
Антон КАНТШАР (DE)
Антон КАНТШАР
Роберт СЛОБОДА (DE)
Роберт СЛОБОДА
Руди АЙХХОРН (DE)
Руди АЙХХОРН
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Роберт Бош ГмбХ (DE)
Роберт Бош Гмбх
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/0602Control of components of the fuel supply system
    • F02D19/0613Switch-over from one fuel to another
    • F02D19/0615Switch-over from one fuel to another being initiated by automatic means, e.g. based on engine or vehicle operating conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/0626Measuring or estimating parameters related to the fuel supply system
    • F02D19/0634Determining a density, viscosity, composition or concentration
    • F02D19/0636Determining a density, viscosity, composition or concentration by estimation, i.e. without using direct measurements of a corresponding sensor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D19/00Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06Controlling 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
    • F02D19/0639Controlling 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 characterised by the type of fuels
    • F02D19/0642Controlling 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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F02D19/0647Controlling 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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D35/00Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/027Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00Advancing or retarding ignition; Control therefor
    • F02P5/04Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15Digital data processing
    • F02P5/152Digital data processing dependent on pinking
    • F02P5/1527Digital data processing dependent on pinking with means allowing burning of two or more fuels, e.g. super or normal, premium or regular
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
    • G01L23/225Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines circuit arrangements therefor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

Abstract

1. Способ распознавания детонационного стука при смене режима работы двигателя (2) внутреннего сгорания (ДВС) на первом и втором видах топлива, заключающийся в том, что регистрируют характеристику сигнала (ikr), характеризующего корпусный шум ДВС (2), в зависимости от характеристики характеризующего корпусный шум сигнала (ikr) определяют его опорный уровень (rkr), соответствующий параметрам создаваемого двигателем фонового шума, и в зависимости от опорного уровня (rkr) устанавливают факт появления детонационного стука, отличающийся тем, что для определения опорного уровня (rkr) характеризующего корпусный шум сигнала (rkr) его характеристику подвергают фильтрации в фильтре нижних частот в соответствии с указанием его постоянной времени (TPF), которой определяется постоянная времени (TPF) при фильтрации нижних частот, каковую постоянную времени выбирают на промежуток времени, в который происходит смена режима работы, меньшей величины, чем вне него. ! 2. Способ по п.1, при осуществлении которого факт появления детонационного стука устанавливают в зависимости от порогового значения (SW), которое согласуют в процессе смены режима работы ДВС на первом и втором видах топлива. ! 3. Способ по п.1, при осуществлении которого в процессе смены режима работы задают упреждение угла опережения зажигания для изменения фактического, заданного для работы ДВС (2) момента зажигания в сторону более позднего, при этом по истечении определенного промежутка времени величину такого упреждения угла опережения зажигания плавно или ступенчато уменьшают. ! 4. Способ по п.3, при осуществлении которого величину упреждения угла опережения зажигания задают в  1. A method for recognizing a detonation knock when changing the operating mode of an internal combustion engine (2) internal combustion engine (IIC) on the first and second types of fuel, which consists in registering a signal characteristic (ikr) characterizing the engine case noise (2), depending on the characteristic the signal characterizing the case noise (ikr) determines its reference level (rkr), corresponding to the parameters of the background noise generated by the engine, and depending on the reference level (rkr), the fact of the appearance of a detonation knock is established, characterized in that for op the reference level (rkr) characterizing the case noise signal (rkr), its characteristic is filtered in a low-pass filter according to its time constant (TPF), which determines the time constant (TPF) when low-pass filtering, which time constant is selected for the period the time at which the change of operation occurs, a smaller value than outside of it. ! 2. The method according to claim 1, in the implementation of which the fact of the appearance of a detonation knock is set depending on the threshold value (SW), which is agreed upon during the change of the operating mode of the internal combustion engine on the first and second types of fuel. ! 3. The method according to claim 1, in the implementation of which, in the process of changing the operating mode, the ignition timing is set to change the actual ignition timing set for the internal combustion engine (2) to be later, and after a certain period of time, the magnitude of this angle ignition lead smoothly or stepwise reduce. ! 4. The method according to claim 3, in the implementation of which the value of the lead of the ignition timing is set in

Claims (8)

1. Способ распознавания детонационного стука при смене режима работы двигателя (2) внутреннего сгорания (ДВС) на первом и втором видах топлива, заключающийся в том, что регистрируют характеристику сигнала (ikr), характеризующего корпусный шум ДВС (2), в зависимости от характеристики характеризующего корпусный шум сигнала (ikr) определяют его опорный уровень (rkr), соответствующий параметрам создаваемого двигателем фонового шума, и в зависимости от опорного уровня (rkr) устанавливают факт появления детонационного стука, отличающийся тем, что для определения опорного уровня (rkr) характеризующего корпусный шум сигнала (rkr) его характеристику подвергают фильтрации в фильтре нижних частот в соответствии с указанием его постоянной времени (TPF), которой определяется постоянная времени (TPF) при фильтрации нижних частот, каковую постоянную времени выбирают на промежуток времени, в который происходит смена режима работы, меньшей величины, чем вне него.1. A method for recognizing a detonation knock when changing the operating mode of an internal combustion engine (2) internal combustion engine (IIC) on the first and second types of fuel, which consists in registering a signal characteristic (ikr) characterizing the engine case noise (2), depending on the characteristic the signal characterizing the case noise (ikr) determines its reference level (rkr), corresponding to the parameters of the background noise generated by the engine, and depending on the reference level (rkr), the fact of the appearance of a detonation knock is established, characterized in that for op the reference level (rkr) characterizing the case noise signal (rkr), its characteristic is filtered in a low-pass filter according to its time constant (TPF), which determines the time constant (TPF) when low-pass filtering, which time constant is selected for the period the time at which the change of operation occurs, a smaller value than outside of it. 2. Способ по п.1, при осуществлении которого факт появления детонационного стука устанавливают в зависимости от порогового значения (SW), которое согласуют в процессе смены режима работы ДВС на первом и втором видах топлива.2. The method according to claim 1, in the implementation of which the fact of the appearance of a knock is established depending on the threshold value (SW), which is agreed upon during the change of the operating mode of the internal combustion engine on the first and second types of fuel. 3. Способ по п.1, при осуществлении которого в процессе смены режима работы задают упреждение угла опережения зажигания для изменения фактического, заданного для работы ДВС (2) момента зажигания в сторону более позднего, при этом по истечении определенного промежутка времени величину такого упреждения угла опережения зажигания плавно или ступенчато уменьшают.3. The method according to claim 1, in the implementation of which, in the process of changing the operating mode, the ignition timing is set to change the actual ignition timing set for the internal combustion engine (2) to be later, and after a certain period of time, the magnitude of this angle ignition lead smoothly or stepwise reduce. 4. Способ по п.3, при осуществлении которого величину упреждения угла опережения зажигания задают в зависимости от температуры охлаждающей жидкости ДВС (2) и/или температуры впускаемого воздуха.4. The method according to claim 3, in the implementation of which the lead time of the ignition timing is set depending on the temperature of the engine coolant (2) and / or the temperature of the intake air. 5. Способ по одному из пп.1-4, при осуществлении которого характеристику характеризующего корпусный шум сигнала регистрируют только в те временные интервалы, в течение которых в ДВС (2) возможно появление детонационных стуков.5. The method according to one of claims 1 to 4, in which the characteristic of the signal characterizing the case noise is recorded only at those time intervals during which detonation knocks may occur in the internal combustion engine (2). 6. Устройство для распознавания детонационного стука при смене режима работы двигателя (2) внутреннего сгорания (ДВС) на первом и втором видах топлива, имеющее блок (5) регистрации корпусного шума, предназначенный для регистрации характеристики сигнала (ikr), характеризующего корпусный шум в ДВС (2), блок (4) распознавания детонационных стуков, предназначенный для регистрации характеристики характеризующего корпусный шум сигнала, для определения опорного уровня (rkr) характеризующего корпусный шум сигнала (ikr), каковой опорный уровень соответствует параметрам создаваемого двигателем фонового шума, в зависимости от характеристики этого характеризующего корпусный шум сигнала (ikr), и для установления факта появления детонационного стука в зависимости от опорного уровня (rkr), отличающееся тем, что блок (4) распознавания детонационных стуков для определения опорного уровня (rkr) характеризующего корпусный шум сигнала (rkr) выполнен с возможностью подвергать его характеристику фильтрации в фильтре нижних частот в соответствии с указанием его постоянной времени (TPF), которой определяется постоянная времени (TPF) при фильтрации нижних частот, каковая постоянная времени выбирается на промежуток времени, в который происходит смена режима работы, меньшей величины, чем вне него.6. A device for recognizing a knocking noise when changing the operating mode of an internal combustion engine (2) internal combustion engine on the first and second types of fuel, having a body noise registration unit (5) for recording a signal characteristic (ikr) characterizing body noise in an internal combustion engine (2), a knock recognition unit (4) for detecting knock sounds, for detecting a characteristic characterizing a body noise signal, for determining a reference level (rkr) for a characterizing body noise signal (ikr), which reference level corresponds to takes into account the parameters of the background noise generated by the engine, depending on the characteristics of this signal characterizing the case noise (ikr), and to establish the occurrence of a knock depending on the reference level (rkr), characterized in that the knock recognition unit (4) for determining the reference level (rkr) characterizing the case noise signal (rkr) is configured to subject its filtering characteristic in the low-pass filter in accordance with the indication of its time constant (TPF), which determines time constant (TPF) for low-pass filtering, which time constant is selected for the period of time during which a change in the operating mode occurs, a smaller value than outside it. 7. Моторная система, имеющая двигатель (2) внутреннего сгорания и устройство по п.6.7. A motor system having an internal combustion engine (2) and a device according to claim 6. 8. Компьютерный программный продукт, содержащий программный код, который при его исполнении процессором данных обеспечивает осуществление способа по одному из пп.1-5. 8. A computer program product containing program code, which when executed by a data processor provides the implementation of the method according to one of claims 1 to 5.
RU2011116932/06A 2008-09-30 2009-08-12 Method and device for identification of knocks at changing ice operating conditions RU2528780C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008042475.7A DE102008042475B4 (en) 2008-09-30 2008-09-30 Method and device for determining a knocking event during a switching operation between operating modes of an internal combustion engine
DE102008042475.7 2008-09-30
PCT/EP2009/060434 WO2010037588A1 (en) 2008-09-30 2009-08-12 Method and device for detecting a knocking occurrence during a switching process between operating modes of an internal combustion engine

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RU2528780C2 RU2528780C2 (en) 2014-09-20

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DE102014224800B4 (en) * 2014-12-03 2018-01-18 Robert Bosch Gmbh Method and device for knock control of an internal combustion engine
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WO2010037588A1 (en) 2010-04-08
CN102171428B (en) 2013-10-23
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RU2528780C2 (en) 2014-09-20
CN102171428A (en) 2011-08-31

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