WO2011101394A1 - Procédé permettant de faire fonctionner un moteur à combustion interne à l'aide de deux carburants différents - Google Patents

Procédé permettant de faire fonctionner un moteur à combustion interne à l'aide de deux carburants différents Download PDF

Info

Publication number
WO2011101394A1
WO2011101394A1 PCT/EP2011/052320 EP2011052320W WO2011101394A1 WO 2011101394 A1 WO2011101394 A1 WO 2011101394A1 EP 2011052320 W EP2011052320 W EP 2011052320W WO 2011101394 A1 WO2011101394 A1 WO 2011101394A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
internal combustion
combustion engine
control unit
fuel supply
Prior art date
Application number
PCT/EP2011/052320
Other languages
German (de)
English (en)
Inventor
Georg LÜTKEMEYER
Uwe Israel
Original Assignee
Twintec Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Twintec Ag filed Critical Twintec Ag
Publication of WO2011101394A1 publication Critical patent/WO2011101394A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—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
    • 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
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0613—Switch-over from one fuel to another
    • 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
    • F02D19/0639—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 characterised by the type of fuels
    • F02D19/0642—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 characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F02D19/0647—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 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]
    • 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
    • F02D19/066—Retrofit of secondary fuel supply systems; Conversion of engines to operate on multiple 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
    • F02D41/02—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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • F02D41/1476—Biasing of the sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/11—After-sales modification devices designed to be used to modify an engine afterwards
    • 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
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
    • 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

Definitions

  • the invention relates to a method for reducing pollutants in motor vehicles, which is normally used for operation with gasoline and (subsequently) z. B. for the operation with liquefied petroleum gas (LPG: Liquefied Petroleum Gas) are set up.
  • LPG Liquefied Petroleum Gas
  • systems are offered with which vehicles equipped for operation with petrol or diesel can be retrofitted in such a way that they can additionally be operated with liquefied petroleum gas.
  • Such retrofit systems usually include a separate tank system and injection system for LPG, which is installed in the motor vehicle in addition to the gasoline injection system.
  • This injection system has its own control unit, which controls the injection of liquid gas.
  • This LPG injection control unit is normally connected to the regular operation engine control unit to process and convert its injection signals into appropriate LPG injection signals.
  • For the LPG separate injectors are normally provided, which are arranged next to the injectors for normal operation with gasoline on the intake manifold of the internal combustion engine and supply the liquefied gas to the combustion chambers. It has been found that the pollutant emission of the internal combustion engine is increased in operation with LPG under certain operating conditions compared to the pollutant emission in gasoline operation. This applies in particular to the emissions of nitrogen oxide compounds during load changes or at high load.
  • a method for switching over a force Substance supply and a method for operating a fuel supply to an internal combustion engine can be specified, by which in particular the pollutant emissions of an internal combustion engine, which is retrofitted for operation with LPG, can be reduced.
  • the method according to the invention is a method for switching over a fuel supply of an internal combustion engine that can be operated with different fuels from a first fuel to a second fuel.
  • the internal combustion engine has an exhaust gas treatment device with a catalyst, which is flowed through by exhaust gas with an exhaust gas flow direction and in the exhaust gas flow direction downstream of the catalyst, a lambda probe is arranged, which is connected via at least one electrically conductive connection with a first control device of the internal combustion engine is, wherein the electrical resistance of the compound is changed when switching the fuel supply.
  • the first control device is preferably the regular engine control of the motor vehicle. Normally two lambda probes are connected to this control unit.
  • the first lambda probe is arranged regularly in the exhaust gas flow direction starting from the internal combustion engine of the motor vehicle in front of the catalytic converter and is controlled in the same way. called. With their help, the fuel mixture is roughly adjusted to the intended lambda.
  • the first controller regularly uses this so-called post-catalyst probe to monitor and fine tune the catalyst to a predetermined lambda.
  • the lambda probe permanently determines the residual oxygen content in the exhaust gas and transmits this value as an analog electrical signal to the first control unit, which together with other parameters produces a control signal for mixture formation, which generally results in an adaptation of the injection quantity in the internal combustion engine (lambda-trim control).
  • this lambda control follows a fixed schedule.
  • the desired adjustment of the injection signals to the operation can be achieved with LPG.
  • an increase in the electrical resistance causes a damping of the signal.
  • the resulting lower voltage values are interpreted as higher lambda (leaner mixture).
  • the response of the controller is to increase the injection amount to reach the originally planned level again.
  • the true lambda is a bit richer after the manipulation.
  • Such an adaptation is particularly useful if an adjustment to a gaseous fuel is to take place, because here the conversion window is slightly shifted towards a richer fuel mixture.
  • the thus adapted injection signals of the first control unit are regularly further processed by a second control unit and converted into injection signals for operation with the second fuel.
  • control strategy stored in the engine control unit remains unchanged, but due to the changed input signal also correspondingly changed output signals are generated, which are then suitable for the low-emission operation with LPG.
  • This can also be prevented in the engine control unit during operation with LPG unwanted adaptation processes based on incorrect assumptions about pollutant emissions continue to have an effect on (regular) operation with the first fuel even after stopping LPG or second fuel operation.
  • the first fuel and the second fuel can be chosen arbitrarily.
  • the method according to the invention can always be used if the fuel supply of an internal combustion engine is to be switched between different types of fuel.
  • the method is not limited to internal combustion engines that have been retrofitted for operation with LPG.
  • the method is particularly advantageous if the first fuel is gasoline or diesel and the second fuel is liquefied petroleum gas (LPG) or compressed natural gas (CNG).
  • LPG liquefied petroleum gas
  • CNG compressed natural gas
  • the method for switching a fuel supply according to one of the preceding claims when the electrical resistance is increased or decreased by at least 1000 ⁇ [ohm] and by a maximum of 10,000 ⁇ [ohm]. This range of values has proved to be successful, in particular for the gasoline / LPG application, with regard to the desired exhaust gas values.
  • the resistance depends on the internal resistance and the voltage / lambda characteristic of the lambda probe used and should be re-determined from case to case.
  • the operation of the internal combustion engine with the first fuel from the first control unit and the operation of the Verbrennungskraftma- machine with the second fuel from the second control unit are controlled, wherein the second control unit processes output signals of the first control unit.
  • the second control unit does not provide any direct feedback to the first control unit with regard to the control operations which take place for the control of the operation with the second fuel in the second control unit.
  • the lambda probe is a jump probe (two-point probe).
  • the aforementioned lambda probe is meant the post-cat probe.
  • the lambda probe is a Nernst probe. With this type of probe, the output voltage depends on the lambda value. A series connection with the electrical resistance thus causes a shift of the measured lambda value in the direction of lean (higher air content).
  • the invention also relates to a method for operating a fuel supply of an internal combustion engine, wherein the internal combustion engine with a first fuel and a second fuel is operable and each switching of the fuel supply between the two fuels is carried out according to the inventive method for switching the fuel supply, wherein the first fuel is gasoline and the second fuel is LPG (Liquefied Petroleum Gas), and each time it switches from gas to LPG, the electrical resistance of the connection is increased by one value and the resistance is changed by the same each time LPG to gasoline is switched Value is lowered.
  • the method of operating the fuel supply is particularly advantageous if the value is between 4,000 ⁇ (ohms) and 6,000 ⁇ (ohms). Most preferably, the value is 4,900 ohms (ohms).
  • a motor vehicle having an internal combustion engine with a first control unit and with an exhaust treatment device, which can be traversed by exhaust gas of the internal combustion engine with an exhaust gas flow direction and a catalyst and arranged in the exhaust gas flow direction downstream of the catalyst lambda probe, wherein an electric Connection exists between the lambda probe and the first control device having at least a first current path and a second current path, wherein in the second current path, an electrical resistance component is provided and can be switched between the first current path and the second current path with a switch, wherein the switch is connected to the second control device.
  • the motor vehicle according to the invention is particularly suitable for carrying out the method according to the invention for switching over a fuel supply and / or for carrying out the method according to the invention for operating a fuel supply of an internal combustion engine.
  • the switch is preferably controlled by the second controller.
  • the second control unit controls at least one change-over switch which sends the injection signals from the first control unit to the second control unit or to the injectors for operation with liquid gas can divert.
  • the switch ensures switching between the first current path and the second current path. Switch and switch are preferably always operated in parallel.
  • FIGS. show particularly preferred embodiments, to which the invention is not limited.
  • the figures and in particular the illustrated proportions are only schematic. Show it:
  • Fig. 1 a motor vehicle according to the invention.
  • Fig. 2 the emissions of nitrogen oxide compounds during an exhaust test at different operating conditions of a motor vehicle compared to each other.
  • Fig. 1 shows a motor vehicle 1 with an internal combustion engine 2, which is adapted for operation with either a first fuel or a second fuel.
  • Fig. 1 only one combustion chamber 11 of the internal combustion engine 2 is shown.
  • the combustion chamber 11 is supplied via the intake passage 8 with air and fuel. Exhaust gases pass out of the combustion chamber 11 beyond the exhaust pipe 9.
  • there is a spark plug 18 on the combustion chamber 11 for igniting the combustible mixture present in the combustion chamber 11 during operation of the internal combustion engine 2.
  • the suction line 8 can be opposite to the combustion be closed 11 with a valve 10.
  • the exhaust gas line 9 can be closed with respect to the combustion chamber 11 with a valve 10.
  • the first control unit 5 is in particular the engine control of the motor vehicle 1.
  • a first fuel in particular gasoline
  • a changeover to the second fuel occurs via the changeover switch 7.
  • the changeover switch 7 is set in Fig. 1 such that a fuel supply with second fuel takes place and the fuel supply of the internal combustion engine 2 is interrupted with the first fuel.
  • the fuel supply with the second fuel is thus controlled as shown in FIG. 1 by the second control unit 6, which in turn is controlled by the first control unit 5.
  • the second control unit 6 and the changeover switch 7 can also be integrated with one another in one component.
  • the changeover switch 7 is controlled by the second control unit 6.
  • signals from the first control unit 5 to the first injector 3 and the second control unit 6 happen, these signals are then not modified by the second control unit 6.
  • the second control unit 6 can receive different signals for controlling the injection of the second fuel.
  • a lambda input 13 is provided, via which a lambda value, which is not shown here lambda sensor (before catalyst), the internal combustion engine 2 can get into the second control unit 6.
  • the temperature sensor 21 determines the cooling water temperature of the combustion engine 2 in the cooling circuit 12 of the internal combustion engine 2.
  • the signal of this temperature sensor 21 can be utilized by the second control unit 6.
  • the second control unit calculates a signal for the second injector 4 from the signal which it receives from the first control unit 5 and which is actually intended to control the first injector 3 in combination with the other signals available to the second control unit 6. which injects the second fuel into the intake passage 8 of the internal combustion engine 2.
  • the signal reaches the second injector 4 via the signal line 36.
  • a second injector 4 per combustion chamber 11 is provided.
  • the second injector 4 receives the second fuel from the tank 16.
  • the second fuel is pumped out of the tank 16 with the pump 17 and passes via the supply line 14 to the second injector 4.
  • a return line 15 through which excess second fuel (LPG) is conveyed from the injector 4 back into the tank 16.
  • LPG excess second fuel
  • a pressure sensor 20 is provided in the return line 15.
  • the signal of the pressure sensor 20 also passes to the second control unit 6 and is used in this for calculating the injection signal for the second injector 4 with.
  • a pressure regulator 19 with which the pressure of the LPG in the supply line 14 and in particular in front of the second injector 4 can be adjusted.
  • the return line 15 in combination with the pressure regulator 19 is also provided that no gaseous LPG is produced by heating and insufficient pressure in the supply line 14 - namely, it is to be achieved that (only) liquid LPG is discharged via the second injectors 4.
  • the second injector 4, the signal lines 36 and the second control unit 6 together form a kit for a retrofittable injection system 22.
  • the exhaust gases of the internal combustion engine 2 reach the exhaust treatment device 23, in which they flow through a catalyst 24 with an exhaust gas flow direction 25.
  • a lambda probe 26 is arranged, which is connected via an electrical connection 27 to the first control unit 5.
  • the electrical connection 27 has a first current path 28 and a second current path 29.
  • an electrical resistance component 30 is arranged. Between the first current path 28 and the second current path 29 can be switched with the switch 31.
  • the switch 31 is controlled as well as the switch 7 for switching the fuel supply of the internal combustion engine 2 from the first fuel to second fuel and vice versa from the second control unit.
  • the switchover of the changeover switch 7 and the switch 31 is usually carried out at the same time when switching over a fuel supply.
  • Fig. 2 shows a graph of the emission of nitrogen oxide compounds of a motor vehicle during an exhaust gas test.
  • the diagram is divided into two parts. In the upper part of the pollutant emissions of a motor vehicle is shown. In the lower part, the speed 32 is related to the upper part. The speed 32 is plotted on the speed axis 39 in units of [km / h] (kilometers per hour). The upper part and the lower part both have the same time axis 37, which is scaled by the unit [s] (seconds). The various emissions of nitrogen oxide compounds are applied in the upper part of the pollutant axis 38. The pollutant axis 38 is scaled by the unit [g / s] (grams per second). The amount of nitrogen oxide ejected per second is plotted.
  • a first (dotted) curve 33 shows the emission of nitrogen oxide compounds (after catalyst) in gasoline operation. It can be seen that, in particular during load changes in the high load range, a short time interval with increased nitrogen oxide emissions occurs.
  • the second (dashed) curve 34 shows the emission of nitrogen oxide compounds in the exhaust gas test during operation of the motor vehicle with LPG, wherein no correction according to the invention takes place. It can be clearly seen that the emission of nitrogen oxide compounds in the critical time interval, in which the output is already increased in gasoline operation, is even more increased.
  • the third (solid) curve 35 shows the emission of pollutants in the same exhaust gas test during operation with LPG (liquefied petroleum gas), wherein an inventive correction of the signal of the lambda probe by changing the resistance of the electrical connection line. It can be clearly seen that the output of nitrogen oxide compounds is even reduced here compared to the emission of nitrogen oxide compounds in gasoline operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne un procédé de commutation, d'un premier carburant à un second carburant, d'une alimentation en carburant d'un moteur à combustion interne (2) pouvant être actionné à l'aide de différents carburants, ledit moteur à combustion interne (2) présentant un dispositif de traitement des gaz d'échappement (23) muni d'un catalyseur (24), ledit dispositif de traitement des gaz d'échappement étant parcouru par les gaz d'échappement dans une direction d'écoulement des gaz d'échappement (25), et une sonde lambda (26) étant agencée derrière le catalyseur (24) dans la direction d'écoulement des gaz d'échappement (25). La sonde lambda (26) est reliée à un premier appareil de commande (5) du moteur à combustion interne (2) par l'intermédiaire d'au moins une connexion électroconductrice (27), la résistance électrique de la connexion (27) étant modifiée lors de la commutation de l'alimentation en carburant.
PCT/EP2011/052320 2010-02-17 2011-02-17 Procédé permettant de faire fonctionner un moteur à combustion interne à l'aide de deux carburants différents WO2011101394A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010008289A DE102010008289A1 (de) 2010-02-17 2010-02-17 Verfahren zum Betrieb einer Verbrennungskraftmaschine mit zwei verschiedenen Kraftstoffen
DE102010008289.9 2010-02-17

Publications (1)

Publication Number Publication Date
WO2011101394A1 true WO2011101394A1 (fr) 2011-08-25

Family

ID=43927894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/052320 WO2011101394A1 (fr) 2010-02-17 2011-02-17 Procédé permettant de faire fonctionner un moteur à combustion interne à l'aide de deux carburants différents

Country Status (2)

Country Link
DE (1) DE102010008289A1 (fr)
WO (1) WO2011101394A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016102762U1 (de) 2016-05-24 2017-11-27 Lpg Suisse Ag Vorrichtung für ein Betreiben eines Motors
EP3249201A1 (fr) 2016-05-24 2017-11-29 LPG suisse AG Dispositif de fonctionnement d'un moteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217013B4 (de) 2013-08-27 2021-12-23 Robert Bosch Gmbh Verfahren und Vorrichtung zur Korrektur einer Kennlinie einer Zweipunkt-Lambdasonde

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628294A (en) * 1993-09-21 1997-05-13 Gentec B.V. System and method for metering the fuel supply to a combustion installation operating on more than one type of fuel
US20020134362A1 (en) * 2001-03-21 2002-09-26 Motorola, Inc. Dual fuel method and system
EP1905990A1 (fr) * 2006-09-25 2008-04-02 HONDA MOTOR CO., Ltd. Dispositif de contrôle d'injection de carburant pour moteur à plusieurs types de carburant
WO2009130095A1 (fr) * 2008-04-25 2009-10-29 Continental Automotive Gmbh Procédé pour réguler un rapport air/carburant et procédé pour identifier une qualité de carburant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147390A1 (de) * 2001-09-26 2003-04-30 Bosch Gmbh Robert Breitband-Lambda-Sonde mit verbessertem Startverhalten
US6831471B2 (en) * 2002-11-14 2004-12-14 Delphi Technologies, Inc. Configurable interface circuit for exhaust gas oxygen sensors
DE102006041184A1 (de) * 2006-09-01 2008-03-06 Robert Bosch Gmbh Schaltungsanordnung zum Betreiben einer Führungssonde
DE102007050122A1 (de) * 2007-10-19 2009-04-23 Robert Bosch Gmbh Verfahren zur Klassifizierung von Kraftstoffen in direkt einspritzenden Brennkraftmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628294A (en) * 1993-09-21 1997-05-13 Gentec B.V. System and method for metering the fuel supply to a combustion installation operating on more than one type of fuel
US20020134362A1 (en) * 2001-03-21 2002-09-26 Motorola, Inc. Dual fuel method and system
EP1905990A1 (fr) * 2006-09-25 2008-04-02 HONDA MOTOR CO., Ltd. Dispositif de contrôle d'injection de carburant pour moteur à plusieurs types de carburant
WO2009130095A1 (fr) * 2008-04-25 2009-10-29 Continental Automotive Gmbh Procédé pour réguler un rapport air/carburant et procédé pour identifier une qualité de carburant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016102762U1 (de) 2016-05-24 2017-11-27 Lpg Suisse Ag Vorrichtung für ein Betreiben eines Motors
EP3249201A1 (fr) 2016-05-24 2017-11-29 LPG suisse AG Dispositif de fonctionnement d'un moteur
WO2017202826A1 (fr) 2016-05-24 2017-11-30 Lpg Suisse Ag Dispositif permettant de faire fonctionner un moteur
US10927773B2 (en) 2016-05-24 2021-02-23 CleanTech Swiss AG Device for operating an engine

Also Published As

Publication number Publication date
DE102010008289A1 (de) 2011-08-18

Similar Documents

Publication Publication Date Title
DE19842425C2 (de) Verfahren zur Korrektur der Kennlinie einer linearen Lambda-Sonde
DE10121609A1 (de) Steuereinrichtung und Verfahren zum Einstellen einer insbesondere nachrüstbaren Steuereinrichtung, mit welcher eine mit flüssigem Kraftstoff betriebene Brennkraftmaschine nach Umschaltung auf einen Betrieb mit gasförmigem Kraftstoff gesteuert wird
EP2633174A1 (fr) Procédé de diagnostic d'un catalyseur de gaz d'échappement et/ou d'un détecteur de gaz d'échappement appartenant à un moteur à combustion interne de véhicule automobile
DE102007020960A1 (de) Verfahren zum Betrieb einer Brennkraftmaschine
DE102007039313A1 (de) Kraftstoffzuführungssystem für einen gleichzeitig mit unterschiedlichen Kraftstoffen betriebenen Verbrennungsmotor
DE102006061682B4 (de) Verfahren zur Vorsteuerung einer Lambdaregelung
DE102018132466A1 (de) Verfahren und Vorrichtung zur Abgasnachbehandlung eines Verbrennungsmotors
EP1285159B1 (fr) Procede de fonctionnement d'un moteur diesel, et moteur diesel correspondant
DE10063677B4 (de) Verfahren zum Steuern einer Brennkraftmaschine
WO2011101394A1 (fr) Procédé permettant de faire fonctionner un moteur à combustion interne à l'aide de deux carburants différents
EP1966468B1 (fr) Procede et dispositif de regeneration d'un systeme de traitement de gaz d'echappement
WO2012055680A1 (fr) Procédé pour surveiller une adaptation d'un temps d'injection d'une soupape d'injection d'un moteur à combustion interne
WO2014037096A1 (fr) Procédé et dispositif permettant de déterminer la quantité d'un carburant gazeux devant être amenée à un cylindre d'un moteur à combustion interne pour un cycle de travail, en mode mixte utilisant un carburant liquide
DE102017208671B4 (de) Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors sowie Abgasnachbehandlungssystem
DE112011101688T5 (de) Kraftstoffversorgungsvorrichtung und Kraftstoffversorgungssteuerverfahren für einen Verbrennungsmotor
DE102008043717A1 (de) Restgasanteilsteuerung einer Brennkraftmaschine mit Abgasrückführung
DE10318116A1 (de) Verfahren zum Betreiben einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs
DE10234849A1 (de) Verfahren, Computerprogramm und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine
DE10305878B4 (de) Verfahren zum Betreiben einer Brennkraftmaschine, Steuer- und/oder Regelgerät für eine Brennkraftmaschine, Computerprogramm und elektrisches Speichermedium einer Brennkraftmaschine
WO2011061062A1 (fr) Procédé et dispositif d'injection d'un carburant alternatif
DE19908401A1 (de) Verfahren und Vorrichtung zum Betrieb einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs bei magerem Kraftstoff/Luft-Gemisch
DE10010031B4 (de) Verfahren und Vorrichtung zur Durchführung einer NOx-Regeneration eines in einem Abgaskanal einer Verbrennungskraftmaschine angeordneten NOx-Speicherkatalysators
WO2004059151A1 (fr) Procede et dispositif pour reguler la relation carburant/air dans un moteur a combustion interne
EP1241336A2 (fr) Procédé et dispositif pour régler le débit du gaz d'échappement recirculé et/ou le rapport air-carburant
EP1147300A1 (fr) Systeme de gestion electronique des fonctions d'un moteur a combustion interne

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11703898

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11703898

Country of ref document: EP

Kind code of ref document: A1