WO2010031642A1 - Procédé pour faire fonctionner une soupape d'injection - Google Patents

Procédé pour faire fonctionner une soupape d'injection Download PDF

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Publication number
WO2010031642A1
WO2010031642A1 PCT/EP2009/060422 EP2009060422W WO2010031642A1 WO 2010031642 A1 WO2010031642 A1 WO 2010031642A1 EP 2009060422 W EP2009060422 W EP 2009060422W WO 2010031642 A1 WO2010031642 A1 WO 2010031642A1
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WO
WIPO (PCT)
Prior art keywords
current
injection valve
coil
during
injection
Prior art date
Application number
PCT/EP2009/060422
Other languages
German (de)
English (en)
Inventor
Andreas Fath
Marco Beier
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2010031642A1 publication Critical patent/WO2010031642A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2017—Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2065—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control being related to the coil temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • 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
    • F02D2200/0606—Fuel temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
    • F02M53/04—Injectors with heating, cooling, or thermally-insulating means
    • F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs

Definitions

  • the invention relates to a method for operating an injection valve, an arrangement for operating an injection valve, a computer program and a computer program product.
  • the fuel to be burned during operation of an engine, such as diesel, is at low
  • the document 101 36 049 Al relates to a method for heating fuel in a one or more solenoid coils containing fuel injector and the solenoid each associated drive output stages.
  • the driving of the output stages takes place with a drive signal which triggers the energization of the solenoid coils and contains signal portions for generating warm-up phases of the magnet coil.
  • the invention relates to a method for operating an injection valve, in which a coil of the injection valve during an injection operation current with a current profile, which includes a number of phases is provided, in which in a hot operation of the injection valve during each injection operation of the coil, a minimum electrical energy is fed, and wherein in a cold start operation of the injection valve at least one operating parameter of at least one phase increases and the coil is provided an increased electrical energy.
  • the current profile usually has three phases, each phase being characterized by a length of a time interval and a level of a current as operating parameters.
  • the current profile typically includes a booster phase providing a booster current during a booster time interval, a pull-in phase providing a pull-in current during a pull-in time interval, and a hold phase providing a hold current during a hold time interval.
  • the holding current which is supplied to the injection valve during a holding phase is increased and thus additional electrical energy is provided for the minimum electrical energy provided during hot operation.
  • a starting time interval in which a starting current is supplied to the injection valve during a starting phase is prolonged.
  • the tightening interval can be extended such that only the starting current but no holding current flows and thus eliminates the holding phase.
  • the coil and the injection valve is supplied with additional electrical energy.
  • Whether a hot or cold start operation is performed depends on the temperature of the fuel. If the temperature of the fuel is lower than a threshold temperature, so that a viscosity of the fuel for the hot operation is too high, the cold start operation is performed.
  • the method may, for example, depending on the cooling water temperature of the engine, which includes the injector to be operated, are performed. As a rule, the temperature of the fuel and / or of the injection valve can be sensed.
  • Method may be performed when a measured temperature is so low that a resulting viscosity of the fuel does not allow a regular hot start in hot operation.
  • the additional current for generating the current profile in the cold start mode is started in parallel with the activation of the glow function of the glow plug.
  • the fuel is in the region of the injection valve when starting the engine in cold start operation heated, wherein, for example, an increased current is passed through the injection valve.
  • an increased current is passed through the injection valve.
  • the injector can be operated again with the standard current after the current profile in hot operation.
  • the invention also relates to an arrangement for operating an injection valve, in which a coil of the injection valve during an injection operation, current with a current profile comprising a number of phases is provided, wherein in a hot operation of the
  • the coil is supplied with a minimum of electrical energy, wherein the arrangement is adapted to increase in a cold start operation at least one operating parameter at least one phase and to provide the coil with an increased electrical energy.
  • This increased electrical energy can be used to additionally heat the coil and / or to increase the force of the magnetic field induced in the coil.
  • the assembly may include at least one temperature sensor configured to sense a temperature of the injector, the fuel, and / or the cooling water of the engine.
  • the arrangement may comprise at least one power source, which is designed to provide the current profile described.
  • the arrangement may be designed to interact with the at least one temperature sensor or thermometer and / or the at least one current source.
  • I suit ⁇ minimum battery voltage (at 100% functionality) / resistance system (hot) - A -
  • the pull-up current (I pull) in hot operation is less than a quotient of the minimum battery voltage at 100% functionality and the resistance of the system in hot operation.
  • the holding current (I holding current) is less than or equal to the minimum battery voltage in the hot start divided by the resistance of the system in hot and warm operation, respectively.
  • the holding current must continue to be chosen such that a force F (I holding current) generated by this holding current is greater than the closing force of the injection valve.
  • the pull-in time interval (t pull-in current) or the duration of the pull-in phase is optimized for the function according to which a rapid, fast opening of the injection valve is usually to be implemented with low energy consumption.
  • t min hold current at least n * fall time from pull current to hold current (n ⁇ 2)
  • the minimum hold time interval (t min hold current) at which the hold current is provided during the hold phase is equal to n times the fall time of the current profile from the level of the pull-in current to the level of the hold current.
  • n a value of about 2.
  • the minimum duration of the hold time interval corresponds to twice the fall time from the level of the pull-in current to the level of the hold current.
  • an increase in the level of the holding current takes place.
  • the holding current For the holding current here is provided:
  • the holding current is less than or equal to the quotient of the minimum battery voltage in the cold start and the resistance of the system comprising at least the injection valve in the cold start.
  • the force generated by the holding current is greater than the closing force of the injector.
  • the level of the holding current (I holding current) is selected as high as possible when implementing the first variant.
  • an extension of the starting current duration may be provided, wherein subsequent relationships of the operating parameters are to be considered.
  • I suit ⁇ minimal battery voltage (at cold start) / resistance system (cold start)
  • a level of the starting current is less than or equal to the value of the minimum battery voltage at cold start divided by a resistance of the system during cold start.
  • the level of the starting current is to be selected such that a force generated by the starting current is greater than the opening force of the injection valve.
  • the Anzugszeitintervall and thus a duration of the starting current is selected as long as possible. Since a total duration of the phases of the current profile is constant, regardless of whether a hot start or a cold start is performed, this means that the hold time interval (t hold current) is shortened when the application time interval (t pull-in current) is extended. In an extreme case, it may be provided that the holding phase for providing the holding current in the cold start mode is also completely eliminated if the operating time interval is extended accordingly.
  • the current level in such an embodiment comprises only two phases, wherein the booster phase is followed only by the starting phase during which the starting current is supplied to the injection valve at a level which is above that of the holding current.
  • Thermal loading of the injector is not critical due to the low temperatures that exist during cold start and the typically short run time during which the cold start operation is performed.
  • the mobility of the injection or switching valve determines that
  • Cold start behavior of the injector This mobility is directly linked to the power of the magnet.
  • the force is u. a. influenced by the current. If the current is increased, the magnetic force increases and the more easily the armature of the injection valve moves through the highly viscous fuel in the cold state.
  • the energization of the actuator of the injection valve releases heat. This heat is transferred to the surrounding fuel and heats it, which in turn reduces its viscosity, so that the injection or switching valve can move more easily and behaves the injection behavior of the injector approximately as in hot operation in the normal state of the injector.
  • Coil which is induced by the current flowing through the coil according to the current profile, the magnetic field.
  • the coil has an electrical resistance.
  • the maximum current values of the current profile are selected in such a way that the coil is not or only in the power supply due to the current is heated negligibly.
  • the coil is heated due to its electrical resistance by modifying at least one operating parameter, ie by increasing at least one level of a flowing current or by extending at least one phase of the current profile.
  • a condition for performing the function may be coupled to the cooling water temperature and may be dependent on a value of the cooling water temperature. Furthermore, the function can be deactivated again after a certain number of injections after the cold start.
  • the injector is regularly moved in the low pressure region of the injector.
  • the mobility of the switching valve determines the cold start behavior of the injector.
  • the mobility is typically directly related to the viscosity and free air gas content in the fuel. These operating parameters are u. a. influenced by the fuel temperature.
  • energizing the actuator heat is released. This heat is transferred to the surrounding fuel and heats it, which in turn reduces its viscosity, making it easier to move the switching valve. It follows that only the low-pressure region of the injector is heated in the immediate vicinity of the coil or to the magnet. Thus, the heating volume is extremely small and the required heating energy kept low, whereby the required heating time is reduced in cold start mode.
  • the function can be started at the same time as the glow plug function as soon as, for example, the vehicle door is opened with the remote control and the glow plug is activated. Since the viscosity of the fuel is temperature-dependent, an increase in the temperature by a few Kelvin can already be sufficient to significantly improve the injector function. Thus, this function can already lead after a few seconds of operation in cold start operation to a significant improvement in the injector function.
  • the current profile can be varied in one embodiment by supplying an additional current.
  • a complementary Konstantbestromung of the actuator can be made such that z. B. the power set via the power is kept so low that the magnetic force is chosen smaller than the spring force, which keeps the switching valve closed.
  • blade shots so-called "blank shots” conceivable, wherein the current according to a complementary current profile, which includes short-term rectangular profiles, is supplied.
  • the supplemental to the conventional power profile Bestromungsdauer is chosen so short that, although the injector is opened, the nozzle needle of the injector but not yet lifted and is done by the injector no injection.
  • the magnetic force is increased.
  • the duration of the starting current level can be extended or the holding phase for providing the holding current can be omitted and the injection valve can be energized continuously at the level of the starting current.
  • the increased current strength increases the magnetic force and at the same time more heat is released. This allows the injector armature to move more easily through the highly viscous fuel.
  • This function can be linked to the cooling water temperature. As soon as the cooling water has reached a limit temperature of the fuel, the operating and thus current parameters of the current profile can be reduced again to the standard in hot operation.
  • the nozzle of the injection valve can be opened and closed faster, so that the throttling is reduced.
  • the fuel in the region of the solenoid or piezo valve is heated in order to increase the movement or dynamics of the valve so that it opens and closes fast enough so that a targeted injection can also take place with cold fuel.
  • the described method is usually carried out during a short period of time before the first regular injection until the engine is started.
  • the engine starts much better and thus also produces fewer problems than with a conventional cold start.
  • the injector works better and injects the fuel in the theoretically provided time window according to the current profile in hot operation.
  • injection and combustion quality and emissions can be improved.
  • the invention further relates to a computer program with program code means to all
  • Steps of a method described perform when the computer program on a computer or a corresponding processing unit, in particular in an inventive arrangement is executed.
  • the computer program product according to the invention with program code means which are stored on a computer-readable data carrier is designed to carry out all the steps of a described method when the computer program is executed on a computer or a corresponding arithmetic unit, in particular in an arrangement according to the invention.
  • the temperature range for the use of injectors for diesel engines can be further expanded. This applies to the range of low temperatures, so that a cold start at least in a range of -25 ° C to -30 0 C can be made. However, cold start can be successfully carried out at -40 0C.
  • Figure 1 shows a schematic representation of a diagram with a current profile which is used in a hot operation of the injection valve.
  • FIG. 2 shows a schematic representation of a diagram of a first variant of a current profile which is used in a cold start operation.
  • FIG. 3 shows a schematic representation of a second variant of a current profile which is used in a cold start mode.
  • FIG. 4 shows a schematic representation of a diagram of an armature stroke of the injection valve under different operating conditions.
  • Figure 5 shows a schematic representation of an embodiment of an inventive arrangement for carrying out an embodiment of the method according to the invention.
  • FIGS. 1, 2 and 3 each include a vertically oriented one
  • Axis 2 along which a value of a current is plotted against a horizontally oriented axis 4 for the time.
  • FIG. 1 a current profile 6 for performing a conventional hot operation of an injection valve is shown.
  • the diagram of Figure 2 shows a first
  • the diagram of Figure 3 shows a second variant of a current profile 10, which is used in a second variant for implementing a cold start operation.
  • All three current profiles 6, 8, 10 presented here have the same duration and are divided into three phases, namely, inter alia, a so-called booster phase 12, for which it is provided that a booster current is provided during a booster time interval 14. It is provided for all three current profiles 6, 8, 10 that they have identically long booster time intervals in the embodiments described with reference to FIGS. 1 to 3, during which identical currents are provided to a coil of the injection valve.
  • each current profile 6, 8, 10 comprises a suit phase 16, following the booster phase.
  • the booster phases 16 of the current profiles from the diagrams of FIGS. 1 and 2 have a standardized attraction time interval 20.
  • the current profile 10 from the diagram of Figure 3 has in comparison to the two current profiles 6, 8 from the diagrams of the two figures 1 and 2, an extended operating time interval 22.
  • the current profiles 6, 8, 10 have during the respective tightening phases 16, 18 pull-in currents with largely identical current levels.
  • each current profile 6, 8, 10 comprises a holding phase 24, 26.
  • the current profiles 6, 8 from the diagrams of the two FIGS. 1 and 2 have holding phases 24 with standardized holding time intervals 28.
  • the third current profile 10 from the diagram of FIG. 3 has only a shortened holding phase 26 with a shortened holding time interval 30.
  • the holding current in the holding phase 24 has a standardized level 32.
  • FIG. 2 shows an increased level 36 compared to the standardized level 32.
  • the holding current during the shortened holding phase 26 has largely the standardized level 32.
  • Injector is provided to a coil of the injection valve during an injection operation current according to one of the presented in the diagrams of Figures 1, 2 and 3 profiles 6, 8, 10. During hot operation, this is indicated by the in the diagram of Figure 1 shown current profile 6 of the coil of the injector supplied a minimum of electrical energy.
  • At least one operating parameter i. H. increases a level of the current or a length of an interval of a phase.
  • Such an enlargement of the at least one operating parameter provides the coil of the injection valve with an increased electrical energy compared with hot operation during cold start operation.
  • the level increases the current provided during the hold phase compared to the height of the level 32 in hot operation.
  • the second variant for realizing the cold start operation as the current profile from the diagram of Figure 3 shows, the length of the tightening phase 18 is extended, at the same time the holding phase 26 is shortened.
  • the diagram of FIG. 4 includes a vertically oriented axis 40 along which a value for an armature stroke of the injector during an injection event is plotted over a horizontally oriented axis 42 for time.
  • a first Ankerhubkurve 44 which is generated in a hot operation of the injector upon application of a standardized current profile, reaches a maximum level 46.
  • the fuel such as diesel
  • only the second Ankerhubkurve 48 which, however, does not reach the maximum level 46, so that the injector can not be opened completely and thus properly.
  • cold fuel typically dissolves more gas, typically air, at lower temperatures, so that at low temperatures the free gas content is reduced.
  • gas typically air
  • Components of the injector due to an increased viscosity in the fuel can move more difficult. It follows that the opening process is greatly retarded during an injecting operation of the injector. This can mean, for small injection quantities of the fuel, that the injection valve is operated ballistically the armature stroke of the injection valve as Figure 4 shows, the upper level 46 and the upper stop is not reached. Accordingly, although the injection valve can be opened. However, since the stroke of the armature is small, throttling can be so strong that injection of the fuel by the injector of the injector does not occur. Furthermore, the closing process of the injection valve can also be greatly delayed, so that the injection process can greatly distort as a whole.
  • FIG. 5 shows, in a schematic representation, an arrangement 50 which is designed to operate an injection valve 52, which is designed to inject fuel into an engine of a vehicle.
  • This arrangement 50 comprises a control unit 54 and a current source 56, which is connected to a coil 58 of the injection valve 52.
  • a current provided by the current source 56 flows through the coil 58.
  • the current profile 6 exemplified in the diagram of FIG. 1 is provided during an injection process of the coil 58.
  • a magnetic field is induced by the current flowing through the coil 58, by which in turn an armature of the injector 52 is moved so that fuel is injected on the injector 52 into a combustion chamber.
  • the injection valve 52 includes a temperature sensor 60 which is connected to the controller 54. Based on a value of the temperature provided to the controller 54 from the temperature sensor 60, it may be judged which temperature is present for the injector and thus the fuel.
  • the temperature sensor is configured to measure the temperature of the cooling water, so that the temperature of the fuel and / or injector is indirectly measured. If the temperature of the fuel is so low that it has too high a viscosity for performing a conventional hot operation, a cold start operation is performed for the injection valve 52.
  • the current source 56 is controlled by the controller 52 such that the coil 58, a current according to one of the current profiles 8, 10, which for carrying out the

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

La présente invention concerne un procédé pour faire fonctionner une soupape d'injection. Selon l'invention, au cours d'un processus d'injection, une bobine de la soupape d'injection est alimentée en un courant ayant un profil (8) comprenant un certain nombre de phases; au cours d'un fonctionnement à chaud de la soupape d'injection respectivement lors d'un processus d'injection, la bobine reçoit une énergie électrique minimale; et au cours d'un fonctionnement de démarrage à froid de la soupape d'injection, au moins un paramètre de fonctionnement d'au moins un phase est augmenté et une énergie électrique accrue est fournie à la bobine.
PCT/EP2009/060422 2008-09-22 2009-08-12 Procédé pour faire fonctionner une soupape d'injection WO2010031642A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008042265.7 2008-09-22
DE200810042265 DE102008042265A1 (de) 2008-09-22 2008-09-22 Verfahren zum Betreiben eines Einspritzventils

Publications (1)

Publication Number Publication Date
WO2010031642A1 true WO2010031642A1 (fr) 2010-03-25

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Cited By (6)

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WO2013004338A1 (fr) * 2011-07-06 2013-01-10 Volkswagen Aktiengesellschaft Procédé pour faire fonctionner une pompe à carburant à commutation électronique
WO2018059819A1 (fr) * 2016-09-30 2018-04-05 Robert Bosch Gmbh Amélioration du comportement de démarrage à froid de moteurs à combustion interne
WO2018091232A1 (fr) * 2016-11-16 2018-05-24 Robert Bosch Gmbh Procédé de commande d'une électrovanne d'un injecteur de carburant
EP3649307A4 (fr) * 2017-07-05 2021-04-14 Eaton Intelligent Power Limited Commandes dans des conditions difficiles d'un suiveur de doigt de rouleau de commutation à verrouillage électrique
EP3507474B1 (fr) * 2016-08-30 2022-07-27 Robert Bosch GmbH Procédé de commande d'une soupape d'admission à commande électro-magnétique
CN116447030A (zh) * 2023-04-26 2023-07-18 潍柴动力股份有限公司 喷射阀喷射驱动模式的确定方法、装置和喷射系统

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DE102012210708B4 (de) 2012-06-25 2021-12-02 Robert Bosch Gmbh Verfahren und Anordnung zur Ermittlung eines Korrekturfaktors zur Korrektur eines Einspritzverlaufs bei einem Kraftfahrzeug unter Kaltstartbedingungen zur Sicherung eines schnelleren und sicheren Motorstarts und Motorwiederstarts
DE102013102220A1 (de) * 2013-03-06 2014-09-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zur Bestimmung der Heizleistung von Heizelementen beheizbarer Einspritzventile
DE102014217685B3 (de) * 2014-09-04 2015-12-17 Continental Automotive Gmbh Verfahren zum Betreiben eines Common-Rail-Einspritzsystems
AT516756B1 (de) * 2015-07-10 2016-08-15 Waldland Naturstoffe Gmbh Direkteinspritzende selbstzündende Brennkraftmaschine
DE102015226499A1 (de) * 2015-12-22 2017-06-22 Robert Bosch Gmbh Magnetventil für ein Kraftstoffeinspritzventil, Verfahren zum Betreiben des Magnetventils und Kraftstoffeinspritzventil mit einem solchen Magnetventil
DE102018202048A1 (de) 2018-02-09 2019-08-14 Robert Bosch Gmbh Verfahren zum Ansteuern eines Ventils
DE102020208051A1 (de) 2020-06-29 2021-12-30 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Kühlen einer Brennkraftmaschine

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WO1999032776A1 (fr) * 1997-12-22 1999-07-01 Caterpillar Inc. Gestion electronique pour systeme de carburant a injecteurs active hydrauliquement, gere electroniquement et son mode de fonctionnement
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DE102006059625A1 (de) * 2006-12-14 2008-06-19 Robert Bosch Gmbh Vorrichtung und Verfahren zur Steuerung eines elektromagnetischen Ventils

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WO2013004338A1 (fr) * 2011-07-06 2013-01-10 Volkswagen Aktiengesellschaft Procédé pour faire fonctionner une pompe à carburant à commutation électronique
EP3507474B1 (fr) * 2016-08-30 2022-07-27 Robert Bosch GmbH Procédé de commande d'une soupape d'admission à commande électro-magnétique
WO2018059819A1 (fr) * 2016-09-30 2018-04-05 Robert Bosch Gmbh Amélioration du comportement de démarrage à froid de moteurs à combustion interne
WO2018091232A1 (fr) * 2016-11-16 2018-05-24 Robert Bosch Gmbh Procédé de commande d'une électrovanne d'un injecteur de carburant
CN109952622A (zh) * 2016-11-16 2019-06-28 罗伯特·博世有限公司 用于操控燃料喷射器的磁阀的方法
CN109952622B (zh) * 2016-11-16 2022-05-24 罗伯特·博世有限公司 用于操控燃料喷射器的磁阀的方法
EP3649307A4 (fr) * 2017-07-05 2021-04-14 Eaton Intelligent Power Limited Commandes dans des conditions difficiles d'un suiveur de doigt de rouleau de commutation à verrouillage électrique
CN116447030A (zh) * 2023-04-26 2023-07-18 潍柴动力股份有限公司 喷射阀喷射驱动模式的确定方法、装置和喷射系统

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