EP2102984A2 - Dispositif de commande d'une soupape electromagnetique - Google Patents

Dispositif de commande d'une soupape electromagnetique

Info

Publication number
EP2102984A2
EP2102984A2 EP07847543A EP07847543A EP2102984A2 EP 2102984 A2 EP2102984 A2 EP 2102984A2 EP 07847543 A EP07847543 A EP 07847543A EP 07847543 A EP07847543 A EP 07847543A EP 2102984 A2 EP2102984 A2 EP 2102984A2
Authority
EP
European Patent Office
Prior art keywords
current
control
valve
time
voltage
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07847543A
Other languages
German (de)
English (en)
Inventor
Jan Kaluza
Horst Kleinknecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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 EP2102984A2 publication Critical patent/EP2102984A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/401—Controlling injection timing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
    • H03K17/165—Modifications for eliminating interference voltages or currents in field-effect transistor switches by feedback from the output circuit to the control circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
    • 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
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • 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
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • F02D2041/281—Interface circuits between sensors and control unit
    • F02D2041/283—Interface circuits between sensors and control unit the sensor directly giving at least one digital reading
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • F02D2041/281—Interface circuits between sensors and control unit
    • F02D2041/285—Interface circuits between sensors and control unit the sensor having a signal processing unit external to the engine control unit
    • 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
    • F02D2200/0614—Actual fuel mass or fuel injection amount
    • F02D2200/0616—Actual fuel mass or fuel injection amount determined by estimation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • H01F2007/1866—Monitoring or fail-safe circuits with regulation loop
    • 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
    • Y02T10/40—Engine management systems

Definitions

  • the invention relates to a method and a device for controlling a e- lektromagnetician valve.
  • valves For dosing liquids, such as fuel and / or liquids, which are used in conjunction with an exhaust aftertreatment, usually electromagnetic valves are used. Information about whether the valve is overloaded, whether it is blocked, or whether the metered amount corresponds to the desired amount, are in the control unit, which controls the associated internal combustion engine is not complete before, as this, a considerable effort in the control unit is necessary. Thus, a current value or an evaluation is usually provided for each diagnosis, which is usually arranged as a separate hardware component in the controller or in the control unit.
  • reading-in means write a plurality of measured values for the current and / or voltage into a first memory for mapping a curve
  • evaluation means perform a state analysis and / or a course analysis
  • at least one evaluation device based on the state analysis and / or the course analysis a control variable that characterizes the control, correct and in write a second memory
  • the control means based on the control variables drives a power amplifier
  • the read-in means include a digital / analog converter and a DMA. These offer the advantage that they are available as cost-effective building blocks and / or software.
  • evaluation means and the evaluation means are contained in a processor.
  • processors are available at low cost
  • the evaluation and evaluation means are preferably realized as software that can be developed and programmed inexpensively. These elements can thereby be easily adapted to other valves.
  • a processor According to the current waveform or the voltage curve over time or via the angular position of a motor shaft is read into a first memory. This data is processed by a processor. The processor changes the control variables as a function of this data and writes them into a second memory.
  • the reading-in means, the processor and the control means are designed as elements of a controller.
  • the state analysis preferably determines variables, such as a temperature variable, a holding current and / or an offset current. These quantities allow a statement about the condition. Based on these parameters, the risk of destruction of the valve or a possible defect of the valve can be reliably detected.
  • the progression analysis determines variables which characterize the time of opening or closing of the valve. Based on these quantities, a diagnosis of the dosing process is possible. So these sizes are a measure of whether the liquid to be dosed at the right time and in the correct amount was dosed. It is particularly advantageous if the reading-in means do not record the measured values over a complete metering cycle, but if the reading-in means read in the measured values in at least one measuring window. It is provided in particular that a measurement window is defined for each variable that is determined.
  • the beginning and the end of the measurement window are predetermined on the basis of an expected occurrence of an event.
  • FIG. 1 shows a block diagram of the essential elements of the device according to the invention
  • FIG. 2 shows the current applied over time flowing through the valve
  • FIG. 3 is a detailed illustration of the device according to the invention.
  • FIG. 1 shows the essential elements of a device for controlling an electromagnetic valve.
  • the valve is designated 100.
  • first switching means 110 which is also referred to as a high-side switch
  • second switching means 120 which is also referred to as a low-side switch
  • current measuring means 130 to a second terminal 135 of the power supply.
  • the first switching means 110 is driven by a current controller 142 and the second switching means by a metering control 144.
  • the current control 142 and the metering control 144 are the essential elements of a control 140.
  • the metering control activates the first switching means 110 and the current control controls the second switching means 120.
  • a voltage divider consisting of a first resistor 160 and a second resistor 170, is connected to the second terminal of the supply voltage. Furthermore, this point is connected via a freewheeling diode 162 to the second terminal of the supply voltage.
  • Connection point 165 applies a voltage detection 152 to a signal.
  • the voltage divider is eliminated and the voltage at terminal 115 of the voltage supply is tapped.
  • the two terminals of the current measuring means 130 which is preferably designed as an ohmic resistor, reach a current detection 154.
  • the voltage detection 152 and the current detection 154 form the essential
  • the valve is controlled via a high-side / low-side output stage.
  • the energization of the first switching means takes place in the sense of a current control and / or current control. That is, the energization of the first switching means 110 is selected such that a predetermined current flows through the valve.
  • the regulation of the current through the valve is determined, for example, by a variable pulse-pause ratio of a pulse width modulated signal having a specific frequency.
  • This means the current controller 142 controls the first switching means such that the desired energization of the valve results.
  • the energization is essentially defined by the current values in the individual phases, in particular by the tightening current between the times T2 and T3 and / or the holding current in the holding phase between the times T4 and T5. Furthermore, the
  • the second switching means is controlled such that the metering begins at a certain time and ends at a certain time and thus a certain amount of liquid is metered at a certain time.
  • These times and this time duration of the metering are predetermined by a higher-level controller, depending on the operating state of the internal combustion engine or on the state of an exhaust gas aftertreatment system.
  • the metering control 144 essentially controls the times at which the current supply begins and / or ends.
  • FIG. 2 shows, by way of example, the current profile of an energization during a metering cycle, that is, a metering of liquid by means of the valve.
  • the energization of the valve begins. This means that both the high-side and the low-side switches are closed.
  • the current increases until time T2.
  • the current reaches a first
  • the energization ends, that is, both switching means are opened and the current drops to zero until the time T6. Due to the mechanical inertia, the valve needle still needs a certain amount of time until it returns to its original position. This time can again be detected by an evaluation of the current profile. This measurement is similar to the determination of the switching time at the time Tl. After the time T7, the current usually assumes the value zero or another defined value. From this point on, the offset values and the measurement series can be adjusted. After the time T7 the metering cycle ends.
  • control unit for the valve which includes the controller 140 and the evaluation 150, is shown in more detail. Already shown in Figure 1 elements are denoted by corresponding reference numerals.
  • the illustrated control unit can be implemented as a hardware unit, or as a control method, which is executed by a processor or as a hybrid form.
  • the voltage present at the connection point 165 or the voltage applied to the current measuring means 130 reaches the voltage detection 152 or the current detection 154.
  • the current detection and the voltage detection are preferably designed as A / D converters which store the currently applied signals in to convert a digital signal that corresponds to the respective voltage value or current value.
  • a DMA 200 which may also be referred to as direct memory access, the current values and / or voltage values, which were detected by the current detection 154 and the voltage detection 152, respectively, are written into a memory 210. It is preferably provided that the DMA 200 is implemented as a program structure.
  • the first memory 210, the second memory and a computer 310, which processes the programs, are integrated in a processor 300.
  • the first memory 210, the DMA 200, a second memory 220 and the computer communicate with one another via a data bus 250.
  • the first memory 210, the second memory 220 and the computer are further connected to an address bus 240.
  • the second memory 220 exchanges 230 signals with a state machine. This in turn acts on the current controller 142 and the metering controller 144 with corresponding signals.
  • the data stored in the second memory 220 passes via the state machine 230 to the controller 140, which controls the switching means 110 and 120 accordingly.
  • the A / D converters 152, 154 and the DMA 200 may also be referred to as read-in means.
  • the state machine 230 and the controller 140 may also be referred to as control means.
  • the DMA 200, the state machine 230, the evaluation 150 and the controller 140 together form an interface. Preferably, these elements are part of a controller.
  • the incoming values relating to the voltage U applied to the valve and / or the current I flowing through the valve are time-converted by the voltage sensing 152 and current sensing 154, respectively, from an analog signal to a digital signal. Digitization is carried out by means of ana- Log / digital converters, which form the essential elements of current detection or voltage detection.
  • the DMA 200 writes the digitized signals at certain points in time, ie, time-triggered into the first memory 210.
  • the memory 210 thus stores the signal curve of the voltage and / or the current over time or over the angular position. It can be provided that all values are stored at fixed intervals over the entire metering cycle, that is, from the time TO until well after the time T7.
  • only individual measuring windows are defined within which the measured values are read into the first memory 210.
  • the measured values are read in only in the areas of interest and whose course characterizes the injection process.
  • starting from the expected time or angle position at which the event is likely to occur the beginning and that the end of the measurement window is defined.
  • the start is defined as a point in time which is a fixed value before the expected point in time, as the beginning of the measuring window.
  • the end of the measurement window is a time that is a fixed time after the beginning.
  • the device can be adapted to any consumer, current waveforms, voltage waveforms and applications. This means that there is a very flexible device, which can thus be used inexpensively.
  • the computer 310 of the processor 300 calculates various parameters which characterizing fluid by means of the solenoid valve.
  • the processor contains an evaluation means which, based on the course for the current and / or the voltage stored in the first memory 210, carries out a status analysis and / or a course analysis.
  • the history analysis determines the point in time from which the valve determines the flow of liquid or prevents the flow of the liquid. These times are also referred to as opening time or GDP or closing time or EIP. In addition to these times, other time points characteristic of the injection process can also be determined from the current and / or voltage curve.
  • the state analysis determines, for example, the resistance of the coil. For this it is only necessary that a current / voltage value is read in at the appropriate time. From the resistance, the temperature of the coil is preferably determined as a temperature variable. Furthermore, different current values and / or voltage values can be detected to check the proper functioning of the valve. Such a further value is the so-called offset voltage and / or an offset current, which are read in at the end or shortly before the measuring cycle. Furthermore, the value of the
  • the computer 310 of the processor 300 calculates the quantities characterizing the dosage.
  • the processor comprises evaluation means. These evaluate the results of the progress analysis and / or the state analysis. If the determined values deviate from predetermined values, then the processor corrects at least one of the control variables which characterize the control.
  • the evaluation means which perform the state analysis, the evaluation means which correct at least one control variable on the basis of the state analysis and / or the course analysis are preferably realized as a program of the computer 310 or the processor 300.
  • one of the two switches is opened again at the beginning of the metering cycle, that is to say at time TO, and again at time T5.
  • the second switch is closed at the time TO for a certain time, preferably until the time T3, and then driven with a pulse width modulated signal, which is defined by its duty cycle and its frequency. From time T6 to time T7, the first switch is briefly closed so that the closing time can be detected.
  • control variables are from the processor, the times from which the energization begin and end and the duty cycle specified. Alternatively, instead of the end, the duration can also be specified as a control variable. These quantities characterizing the dosage are stored by the processor in the second memory 220.
  • State machine 230 control variables for acting on the switching means 110 and 120. This is done, for example, such that the state machine, starting from the contents of the second memory 220, transmits a course over the time or the angular position of the state of the two switching means to the controller 140. The controller 140 then acts on the switching means 110 and 120 with corresponding drive signals.
  • This state machine 230 and the controller are also referred to as control means and are included in the controller in a preferred embodiment.
  • the output stage consisting of at least one switching means is controlled via an interface 320 by a processor.
  • the interface contains at least one analog / digital converter and the DMA (direct memory access).
  • This interface detects 320 the voltage and / or the current and writes in the first memory of the processor the course of the voltage and / or the current.
  • the processor evaluates regardless of the type of power amplifier the signals and calculates the desired drive curve.
  • the interface adjusts the values that the processor provides or needs to the signals that the power amp needs or supplies.
  • the processor is completely independent of the used power amplifier or coil used. The same applies vice versa.
  • any consumer can be controlled in any desired manner.
  • the adaptation of the consumer and the processor and vice versa via the interface This must be adapted to both.
  • the interface contains only analog / digital converter and a small processing unit, which takes over the function of the DMA or the state machine.
  • Valves are often used for dosing liquid media in internal combustion engines. Since these valves are often used near the engine or in the vicinity of hot components, such as in the exhaust tract, the thermal load of these components is very large. This thermal load is based, on the one hand, on the heating by the internal combustion engine or its associated elements, such as the exhaust system, or by self-heating by the energization of the valve in its coil. On the one hand, the internal resistance of the coil changes as a result of the heating and, on the other hand, in the extreme case, a
  • the temperature of the valve is detected and the control or the energization of the valve, depending on the temperature of the valve, takes place. It is provided that in the static state, that is, in particular between the times T2 and T3, the current during the energization is measured. The voltage applied to the valve is known in this state or is also measured. Based on the current and the voltage then the internal resistance of the coil is determined. Starting from the internal resistance and the known internal resistance at room temperature, the temperature of the coil is determined. For this purpose, for example, a map can be provided in which the coil temperature is stored depending on the internal resistance. Alternatively it can be provided that the temperature is calculated on the basis of the detected variables.
  • the control strategy of the valve is now changed.
  • the drive strategy is modified in the sense that the temperature is influenced, and on the other hand it is provided that the control is changed in such a way that the influences of the temperature on the behavior of the valve are compensated.
  • the energization is temperature-optimized. This is possible, for example, in that a smaller voltage or a smaller current increase is selected in the starting phase, that is to say until the time T3. As a result, the temperature load of the valve is reduced, in turn, the opening of the solenoid valve slows down.
  • Determining the energization influences the temperature.
  • Behavior which are based on the temperature-optimized current flow of the valve, can also be compensated by changing the control. This again takes place in that the activation time is extended and / or shortened accordingly.
  • the energization is temperature-optimized, that is, the energization is such that as little heat loss occurs.
  • a temperature-optimized energization occurs when it is detected that the temperature is greater than a threshold value or that the internal resistance of the coil exceeds a certain value.
  • a temperature-optimized current supply usually has the consequence that the switching times of the valve or other variables influencing the metered quantity change or that the control becomes inaccurate. Therefore, this temperature-optimized energization preferably takes place only when it is necessary. It is furthermore particularly advantageous that characteristic points in time and current values are detected during the energization and taken into account during the activation.
  • the time at which the valve opens and / or the time at which the valve closes is detected. These two times significantly determine the metered amount of liquid. By detecting these times, the actually metered amount can be determined. If the quantity or these characteristic values deviate from predetermined values, the control is corrected, that is to say a corresponding correction is carried out by the metering controller 144, that is to say the metering is lengthened, shortened and / or shifted by a specific amount.
  • changes in the valve which are based on the higher temperature or which are based on a temperature-optimized energization, determined and corrected. This means, based on the values for the current and / or the voltage, the times at which the valve opens and / or closes are determined. These times are then used to correct the drive.
  • the metering is changed in order to correct influences. This is preferably done by the metering control 144 and by controlling the second switching means 120.
  • a temperature-optimized current supply is dependent on the temperature. This is preferably done by appropriate control of the current control 142 by controlling the first switching means 120th

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Flow Control (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un dispositif de commande d'une soupape électromagnétique. Des éléments de lecture inscrivent une pluralité de valeurs de mesure de courant et/ou de tension dans une première mémoire pour la reproduction d'un profil. Des éléments d'analyse réalisent une analyse d'état et/ou une analyse de profil. Sur la base de l'analyse d'état et/ou de l'analyse de profil, des éléments d'évaluation corrigent au moins une grandeur de commande caractérisant la commande et inscrivent cette grandeur dans une deuxième mémoire. A partir des grandeurs de commande, des éléments de commande commandent un étage final.
EP07847543A 2006-12-14 2007-11-29 Dispositif de commande d'une soupape electromagnetique Withdrawn EP2102984A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006059624A DE102006059624A1 (de) 2006-12-14 2006-12-14 Vorrichtung zur Steuerung eines elektromagnetischen Ventils
PCT/EP2007/063027 WO2008071557A2 (fr) 2006-12-14 2007-11-29 Dispositif de commande d'une soupape électromagnétique

Publications (1)

Publication Number Publication Date
EP2102984A2 true EP2102984A2 (fr) 2009-09-23

Family

ID=39399764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07847543A Withdrawn EP2102984A2 (fr) 2006-12-14 2007-11-29 Dispositif de commande d'une soupape electromagnetique

Country Status (6)

Country Link
US (1) US8774973B2 (fr)
EP (1) EP2102984A2 (fr)
JP (1) JP2010513796A (fr)
CN (1) CN101558564B (fr)
DE (1) DE102006059624A1 (fr)
WO (1) WO2008071557A2 (fr)

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WO2008071557A2 (fr) 2008-06-19
US20100106300A1 (en) 2010-04-29
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CN101558564B (zh) 2013-09-11
DE102006059624A1 (de) 2008-06-19
JP2010513796A (ja) 2010-04-30
US8774973B2 (en) 2014-07-08

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