JP4149763B2 - Method for detecting and controlling the position of a valve member and apparatus for carrying out the method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention detects and controls the position of a valve member of an injection valve, in which the valve member of the injection valve is movable between stoppers in the valve body, and the movement setting of the valve member is obtained from the position of the valve member currently captured. And a device for performing the method.
[0002]
In a fuel injector used in a current fuel injection device, a high-speed switching time of a valve member is provided so that injection can be performed in a short period of time according to the fuel condition in a combustion chamber of an internal combustion engine. (Injection process molding). In addition to the requirement for high-speed switching time in the fuel injector, position detection and position adjustment of the valve member are also important, and the purpose thereof is to match the measurement accuracy of fuel metering and the measurement accuracy region to individual injection phases. In the United States and Europe, the emission regulations for internal combustion engine emissions are constantly stricter, increasing the demand for fuel supply systems incorporated therein.
[0003]
[Prior art]
German patent 41 10 254 discloses a control circuit for a solenoid valve. In this case, the movement of the fluid quantity is interrupted by an electromagnetic valve in the hydraulic system. If this process takes place very rapidly, as in the case of ABS or ASR control processes, a disturbing noise is caused by a sudden stop of the liquid column. To prevent noise, the valve control voltage can be shut off at least once for a short period of time, shortly before the armature reaches a new switching position. It is also possible to shut off times.
[0004]
EP 0 641 481 A1 also relates to a control circuit for a solenoid valve. According to this solution, the following solenoid valve control has been proposed. That is, after reaching the predetermined first control current value, the solenoid valve is shifted from the closed position to the through position, and after reaching the predetermined second control current value, the solenoid valve is moved from the through position to the closed position. In this case, the control current is additionally controlled. When the valve is controlled again to the through-flow position, the control current is first controlled to be lower than the first control current value for a short period of time relative to the control period, and then the first control current value and the second control current value are controlled. It is controlled to be in the area between values. The control current value can also take the value 0 for a short period of time. When such a measure is used for a hydraulic system such as an ABS / ASR system, noise is suppressed when the hydraulic valve provided therein is switched.
[0005]
The disadvantage of the solution known from EP 0 641 481 B1 is that the current capture takes place without knowing the exact position of the valve. Moreover, the current is adjusted depending on the time. This known solution does not self-form the boost voltage for the valve. Moreover, as a result of the aging of the moving components, for example tolerable deviations which continue to increase during the life of the fuel injector are not taken into account, so that no or very little variation in valve characteristics can be compensated.
[0006]
For example, a solenoid valve is used in an in-vehicle system such as an ABS system or an ASR system, and a solenoid valve is also used by a fuel injection system including a fuel injector. From DE-OS 195 39 071 a device for controlling at least one electromagnetic load is known, such as a solenoid valve for fuel metering control in an internal combustion engine. This device comprises a first switching means arranged between a first terminal of the supply voltage source and a first terminal in at least one load. The device further comprises a second switching means arranged between the second terminal of the corresponding load and the second terminal of the supply voltage source. Further, in this case, there is provided a device for controlling the switching means so that energy that becomes free at the time of transition from the suction current value to the holding current value can be stored in the storage means. According to this solution, the storage means are advantageously configured as a capacitor.
[0007]
A similar solution is known from DE-OS 44 13 240, which recharges the capacitor with free energy when the electromagnetic load is interrupted.
[0008]
DE-OS 31 33 703 (US-A 4 467 634) relates to a control method and a control device for an internal combustion engine, in which at least one solid state propagation acoustic sensor is used. The output signal of the sound propagation sensor in the solid is supplied to two filter elements, where the output of one filter is used as a valid signal and the output of the other filter is used to identify the jamming signal. According to this apparatus, it is possible to detect whether or not knocking noise suggesting insufficient combustion has occurred in the internal combustion engine. In this case, no data can be obtained for determining operating parameters such as injection start, injection end, discharge start, discharge end and combustion start.
[0009]
DE-OS 195 36 110 relates to a control method and a control device for an internal combustion engine, and according to the disclosed method, in particular according to the method used for a direct injection diesel internal combustion engine, at least One solid state propagation acoustic sensor or knock sensor is used with at least the first and second filter means, where both filter means have different transmission characteristics. The output signal of the in-solid propagation acoustic sensor can be guided to these filter means. Based on the output signal of the filter means, at least two quantities characterizing combustion and / or injection in the internal combustion engine can be determined. These amounts are signals from which the information about the start and end of injection can be derived for the output signal of the first filter means, while the output of the direct injection internal combustion engine is derived from the output signal of the second filter means. A signal representing the start of combustion in the combustion chamber can be derived.
[0010]
A disadvantage associated with the above-mentioned methods known from these prior arts is that simple control with repeated corrections is performed without a feedback response to the original course of valve movement. Such effects can affect fuel metering due to manufacturing-related deviations and aging that occurs within the service life. For example, shortening the rise and fall times regardless of temperature and vehicle power supply voltage, expanding the metering range with respect to the ratio between the maximum injection amount and the minimum injection amount, and the valve movement to reduce wear and corrosion Requests such as elapse are no longer possible with concepts that cannot provide a feedback response. Very undesired situations at the fuel injector, for example, severe impacts that occur when shut off, and suction with unclear subsequent conditions cannot be captured by the methods already described.
[0011]
[Problems to be solved by the invention]
Accordingly, it is an object of the present invention to provide a method and apparatus for detecting and controlling the position of a valve member that overcomes the disadvantages of the prior art described above.
[0012]
[Means for Solving the Problems]
According to the present invention, the problem is that the current position of the valve member and the suction / dissociation motion are captured by the sensor element and transmitted to the control device, and the actuator member for operating the valve member is controlled by the control device, There is a step of optimizing and moving the valve member with respect to speed and wear, and the attraction current course characteristic of the actuator member includes an on-phase / off-phase, and the duration and time of each phase are converted into the signal of the sensor element. It is solved by making it dependent.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An advantage that can be achieved with the solution according to the invention is, for example, that it is possible to evaluate the movement of the nozzle needle in the injector body, in which various configurations of sensors are used in the region of the injection valve. These sensors are connected to a controllable evaluation electronic device. In addition, a voltage pump circuit is integrated in the valve, according to which it supplies additional required suction energy directly to the solution known from the prior art in order to achieve fast switching times. be able to.
[0014]
The sensor accommodated in the injection valve can immediately capture the current position of the injection valve, and the information can be transmitted to the high-speed real-time computer or alternatively to the control device as it is. This generates a corresponding control signal, which is fed to the adjustment member, so that the contact position of the adjustment member can be optimized and moved with respect to speed and mechanical load.
[0015]
The valve position can be obtained by incorporating an acceleration sensor, a position sensor, or a knock sensor. When an acceleration sensor or a knock sensor is incorporated in the casing region to determine the final position, the suction current can be cut off for a short period of time just before the valve member takes its contact position by the above sensor. The body “bounce” and thus the possibility of an unclear valve body condition are eliminated. The duration and time point of such intervention control depends on prior sensor signals. Suction current can be applied for a short period of time slightly before contact, which also suppresses the bounce and uncertain state of the valve body. In such intervention control, the time point and period for which the suction current is applied for a short period also depend on the sensor signal obtained in advance at the position of the valve body. Since the contact signal has a high frequency, it can be inserted into the control signal as it is, and therefore no additional signal line is required. Since a small capacitor or capacitor and small coil assembly can be incorporated between the transistor acting as the collector and the output pin for signal extraction for subsequent processing, the blocking phase becomes available for output coupling.
[0016]
By using a position sensor such as an acceleration sensor or a piezoceramic as an opposing support member for the spring, the exact position of the needle can be identified, and any evaluation method can be used for accurate position setting. . Depending on the final controlled mechanical position, the effects of temperature drift and aging can be corrected. The intermediate value can be determined for a half-stroke, in which case it can first be moved to the final value for calibration and then adjusted to the proper intermediate position. Since both the start of the suction movement and the start of the dissociation movement are distinguished, the corresponding limit values can be determined for both regions. Sensors can be used to analyze the combustion in the combustion chamber of the internal combustion engine at a suitable integration position within the valve body.
[0017]
A corresponding pump circuit can be incorporated in order to achieve faster suction and dissociation times, in which case the coil inductance is utilized. This circuit is provided with a capacitor used as an accumulator, a charging diode, and a switching element. Depending on the control, the capacitor voltage can be used to assist suction or dissociation. In addition, a group of valves can be integrated into the pump, and an ignition coil can be used to generate an acceleration voltage. This is done by connection to a breakover diode, which allows a voltage region lower than the breakdown region of the breakover diode to be used for pumping. In addition, an ignition coil can be used in conjunction with pulse train ignition to generate an acceleration voltage.
[0018]
According to the embodiment of the idea on which the invention is based, special low-cost materials can be used, such as, for example, ceramic piezoelectric fibers that guarantee force-to-signal conversion. Such material can be attached directly to the valve tip region and the upper stopper so that the contact can be transferred immediately without any time loss. If a dynamic pressure sensor is used to capture the final position, the accompanying high frequency vibration can be directly output coupled via the actuator line. Depending on the movement time of the valve body trapped inside the injector, estimations of valve characteristics such as increased friction can be made and used for diagnosis.
[0019]
Next, the present invention will be described in detail with reference to the drawings.
[0020]
【Example】
FIG. 1 shows a circuit for realizing a faster switching time of the injection valve.
[0021]
A circuit device 1 shown in FIG. 1 represents a circuit of an electromagnetic coil 2 of an injection valve. U _Batt Represents the terminal of the voltage source, to which the first diode 3 is post-connected. The conduction direction of the first diode 3 indicates an electromagnetic coil. The circuit device 1 further includes a first capacitor 5 to which a first thyristor element 6 is connected afterwards. The conduction direction of the first thyristor element 6 indicates the direction of the electromagnetic coil 2. The branch 7 of the circuit device 1 is provided with another second thyristor element 8.
[0022]
The voltage applied to the electromagnetic coil 2 is represented by the reference symbol U _V On the other hand, the coil current flowing through the electromagnetic coil 2 is denoted by reference symbol I. _V Is attached. A second diode 9 is post-connected to the electromagnetic coil 2 of the circuit device 1, and its conduction direction is set to the first capacitor 5, and there is a capacitor voltage U _K Will occur. In addition to the second diode 9, a second capacitor 12 a is also post-connected to the output end of the electromagnetic coil 2. The capacitor voltage of the second capacitor is denoted by the reference symbol U _M It is represented by Further, a main transistor 10 is connected downstream of the electromagnetic coil 2, and a reference numeral 11 is attached to the base of this transistor. A measuring resistor R is placed after the main transistor 10. _M Is connected.
[0023]
The sequence diagrams according to FIGS. 2.1, 2.2 and 2.3 show in detail the voltage or current profile in the circuit components of the circuit arrangement according to FIG.
[0024]
During the pump phase 20 of the circuit arrangement 1 shown in FIG. 1, the main transistor 10 takes the first, second and third pulse phases 32, 33, 34, with the individual pulse phases 32, 33, Between 34 there is a pause. The ratio of the pulse phase and pulse pause of the main transistor 10 can be generated by appropriate control at the base 11 of the transistor, which can also be changed by changing the connection of the transistor 11. Reference numeral 28 represents the end of the pump phase 20.
[0025]
Below the time sequence of the pulse phases 32, 33, and 34 of the main transistor 10 and the pulse pauses located between the pulse phases 32, 33, and 34, the characteristics of the capacitor voltage in the capacitor 5 are shown on the time axis. The graph of FIG. 2.2 shows the voltage course characteristics of the solenoid valve 2, and FIG. 2.3 shows the solenoid coil current I. _V Are drawn on the time axis t. The initial voltage at the capacitor 5 is the battery voltage U _Batt Corresponding to
[0026]
During the pulse phase 32 of the main transistor 10, the coil current rise 37 occurs between the pulse start 35 and the pulse end 36 of the main transistor 10. Following the first pulse phase of the main transistor 10, a pulse pause occurs. During the pulse pause following the first pulse phase 32, a coil current drop 38 occurs in the electromagnetic coil 2 until the subsequent pulse start 35 in the second pulse phase 33 of the main transistor 10. During the pulse pause between the first pulse phase 32 and the second pulse phase 33, a first voltage rise 23 occurs in the first capacitor 5. After the pulse start 35 of the second pulse phase 33, the capacitor voltage 22 is held at the first voltage level 24, which does not change over the period of the second pulse phase 33 of the main transistor 10. After the second pulse phase 33 of the main transistor 10 in which the current increase 37 occurs in the electromagnetic coil 2, the second voltage increase 25 occurs in the first capacitor 5, while the voltage drop 38 occurs in the electromagnetic coil 2. Occurs. After the end of the pulse pause after the second pulse phase 33, the voltage in the first capacitor 5 is held at the second voltage level, which is represented by reference numeral 26. The voltage at the first capacitor 5 is held constant until the third pulse phase 34 ends. In parallel with the third pulse phase 34 of the main transistor 10, a current increase 37 occurs in the electromagnetic coil 2. After the end of the third pulse phase 34, during the subsequent pulse pause of the main transistor 10, a third voltage rise 27 in the first capacitor 5 occurs up to the maximum voltage, which is the voltage at the voltage source 4 (battery voltage). The level is far beyond.
[0027]
After the end of the pump phase 20, the thyristor voltage rises, and the first capacitor 5 is suddenly discharged accordingly, and the coil current I _V In this case, the current rise 39, ie the current amplification or self-induction current amplification 29, significantly exceeds the attraction voltage level represented by reference numeral 31.
[0028]
The interruption process accompanied by acceleration of current reduction is performed in the same manner as in the ascending pump phase, but the thyristor 2 (8) and the thyristor 3 (13) are connected.
[0029]
According to the circuit device constructed according to FIG. 1 as shown in FIG. 2.1, FIG. 2.2 and FIG. 2.3 which are sequence diagrams, circuits other than the thyristor 6 or 9 and the first capacitor 5 are used. Boosting is performed by using the coil inductance of the electromagnetic coil 2 without requiring additional components in the apparatus.
[0030]
FIG. 3 shows the movement of the valve member between two final positions and the course characteristics of the injection valve suction current introduced via the electromagnetic coil.
[0031]
According to FIG. 3, the valve member displacement represented by reference numeral 40 is marked on the time axis. An injection nozzle of a valve member, for example, an injection valve is movable between an upper stopper 41 and a lower stopper 42 in the valve body (see FIG. 4). The movement of the valve member in the valve body is substantially divided into three phases. During the suction phase 43, the valve member moves in the direction of the upper stopper 41. This suction phase 43 is followed by a holding phase denoted by reference numeral 44, which is followed by a shut-off phase 45 during which the valve member is returned from the upper stopper 41 toward the lower stopper 42.
[0032]
Below the displacement / time diagram shown in FIG. 3 is the generated attraction current 43, ie the coil current I in the electromagnetic coil 2. _V The progress of is drawn. When the first capacitor 5 is discharged after the end 28 of the pump phase 20, a coil current 46, that is, a current increase 39 of the suction current occurs. As a result, the valve member in the valve body is rapidly moved toward the upper stopper 41. When the action of the suction current 46 to reach the upper stopper 41 is exerted on the valve member, a bounce 49 is caused, which constitutes a strong mechanical material requirement and causes an unclear state of the valve member in the valve body. May cause. According to the method of the present invention, the suction current 46 is interrupted for a short period before the valve member reaches the upper stopper 41, and at this time, the valve member that can move through the valve body has reached the upper stopper 41. Detected by one or more sensor elements 59, this sensor should be placed in the final position area of the valve member stroke. During the first shut-off window 47, the suction current 46 is shut off before the valve member reaches the upper stopper 41. At that time, the suction current 46 is shut off at 47.1, and after reaching the upper stopper, It is turned on again at 47.2. During the holding phase 44, the total suction current 46 is applied and is shut off again only at the starting point 48.1 in the next shut-off window 48.
[0033]
The valve member travels from the upper stopper 41 to the lower stopper 42 with the assistance of the return spring housed in the valve body of the injection valve. This movement, which takes place during the shut-off phase 45, is thus supported by the return spring, so that the suction current 46 can remain blocked at another shut-off window 48 during the return movement period of the valve member. . The suction current 46 takes its input value again at position 48.2 after the passage of this further shut-off window 48.
[0034]
According to the method of the present invention, the counter pulse 50 can also be applied to the suction current 46 during the shut-off phase 45, which can be realized, for example, by a short and re-input of the suction current 46. As a result, the return movement of the valve member to the lower stopper 42 substantially formed by the return spring is suppressed by the corresponding power supply 42 of the electromagnetic coil 2, and as a result, the valve member in the valve body is moved to the second stopper, that is, the lower stopper 42. The stopper 42 can be softly reached without damaging the material. Also in this case, it is possible to avoid an undesirable switching state caused by the valve member rebounding from the stopper 42 below the valve member.
[0035]
By turning on and off the suction current 46 for a short period of time immediately before reaching the stoppers 41 and 42, it is possible to avoid the bounce of the valve member inside the valve body and the uncertain state of the valve body that occurs subsequently. The contact signal generated when reaching the upper stopper 41 or the lower stopper 42 has a high frequency and can be inserted into the control signal as it is, for example, so that no additional signal line is required. In order to extract a signal for subsequent processing in the control device 57 (see FIG. 4), it is possible to perform capacitive output coupling by incorporating a coil between the transistor and the capacitor for extraction and the output focus. The blocking phase can be used.
[0036]
FIG. 4 shows the basic configuration of the sensor element housed in the valve body in detail.
[0037]
A valve member 54 is housed in the valve body 53 so as to be movable in the vertical direction. In this case, the valve member 54 may be an injection nozzle, or a tappet of an injector. A vertical stroke movement of the valve member 54 relative to the valve body 53 is formed by the electromagnetic coils 2 and 55. The electromagnetic coils 2 and 55 are connected via a line connection 56 to a control device 57 which is only schematically shown here. Sensor elements are respectively provided in the valve member 54 or the valve body 53, and these sensors may be incorporated at a position 61 parallel to the valve member 54, or cross the direction of movement of the valve member 54 in the valve body 53. A built-in orientation 60 in the direction can also be taken. The sensor element 59 is connected to the above-described connection device 57 via the line 58 without being influenced by such an installation position 60 or 61. The geometric shape of the sensor element 59 such as an acceleration sensor, a piezoelectric ceramic sensor, a position sensor, or a knock sensor captures a critical motion region, that is, a region in front of the stoppers 41 and 42 of the valve member 54 in the valve body 53. It is chosen so that. Depending on the installation position 60 or 61, the capture range of the movement of the valve member 54 can be selected in advance to be larger or smaller depending on the installation case.
[0038]
With such a solution, an accurate position setting can be obtained by identifying an accurate position of the valve member 54 (for example, an injection nozzle). If the spring member 62 is used, an intermediate value can be taken for the half stroke by appropriate feeding of the electromagnetic coil 2 or 50. In this case, the final value is taken first for calibration, and then the desired intermediate position is taken. Can be made. Furthermore, it is possible to make an accurate time correspondence to the control signal, thereby making a diagnosis. By arranging the sensor element 59 on the spring member 62, it is possible to discriminate both the start of the attraction movement by applying the attraction current 46 and the start of the dissociation movement by the attraction of the attraction current and the action of the spring member 62. The corresponding limit value can be determined.
[0039]
The return force defined by arranging the terminal magnets corresponding to the upper stopper 41 or the lower stopper 42 can be taken in, and the stroke area can be controlled by incorporating an appropriate guide plate at that time. Since a strong return force can be formed by the terminal magnet, a high acceleration of the valve member 54 inside the valve body 53 and a rapid movement can be achieved. Therefore, the current increase 39 of the attraction current 46 that can be achieved by the circuit configuration according to the present invention can be used even more efficiently.
[0040]
5 and 6 show the position of the sensor element configured as piezoelectric ceramic in the valve body.
[0041]
FIG. 5 shows the arrangement of the sensor element 59 on the spring member 62. The signal line 58 extends laterally from the valve body 53. The sensor position denoted by reference numeral 64 corresponds to the sensor position 60 of the sensor element 59 shown in FIG. The valve member shown in FIG. 5 is configured as an injection nozzle 54 that can move within the valve body 53. The operation of the injection nozzle 54 functioning as a valve member is performed by electromagnetic coils 2 and 55 surrounding the valve member 54 in a ring shape.
[0042]
Furthermore, according to the valve body 53 depicted in FIG. 6, the valve member 54 is shown as an injection nozzle guided in two guide sections 65. Reference numeral 66 represents the installation position of the acceleration sensor provided as the sensor element 59, and this sensor element is connected via a control device 57 (see FIG. 4) and a signal line 58 not depicted in FIG. 6. It is connected.
[0043]
In this case, the control device advantageously comprises a computer operating in real time, whereby the acceleration signal or contact signal captured by the sensor element 59 is directly converted into a control signal for the electromagnetic coils 2, 55. Thus, the movement of the valve member 54 in the valve body 53 can be performed depending on the sensor element 59 detected in advance and the final position taken in advance.
[Brief description of the drawings]
FIG. 1 shows a circuit for achieving a faster switching time.
FIG. 2 is a diagram showing a switching sequence in a faster switching time.
FIG. 3 is a diagram showing a modified embodiment of a circuit for discriminating contact and dissociation of a nozzle needle.
FIG. 4 is a basic view showing a sensor housed in an injector body.
FIG. 5 is a diagram showing a position in an injection valve with respect to a sensor element or knock sensor configured as piezoelectric ceramics.
FIG. 6 is a diagram showing a position in an injection valve with respect to a sensor element or knock sensor configured as piezoelectric ceramics.
[Explanation of symbols]
1 Circuit equipment
2 Electromagnetic coil
3 First diode
4 Voltage source
5 First capacitor
6 First thyristor element
7 branch
8 Second thyristor element
9 Second diode
10 Main transistor
11 Base of transistor
12a Second capacitor
12b coil
13 Third thyristor element
U _Batt Battery voltage
U _V Coil voltage
I _V Coil current
U _K Capacitor voltage
U _M Measurement voltage
R _M Measuring resistance
20 Pump phase
21 Thyristor control voltage
22 Capacitor voltage characteristics
23 First voltage rise
24 First voltage level
25 Second voltage rise
26 Second voltage level
27 Third voltage rise
28 End of pump phase
29 Suction phase
30 Voltage peak
31 Suction current
32 first pulse phase transistor
33 Second Pulse Phase Transistor
34 Third Pulse Phase Transistor
35 Start of pulse
36 End of pulse
37 I _V Rise
38 I _V Descent
39 Voltage rise
40 Valve member displacement
41 Upper stopper
42 Lower stopper
43 Suction phase
44 Retention phase
45 Shutdown phase
46 Characteristics of attracting current
47 First blocking window
47.1 Shutdown start
47.2 Shut off end
48 Another blocking window
48.1 Start of shutoff
48.2 Shut off
49 Bounce characteristics
50 Opposing pulse
51 Low level counter pulse
52 High level counter pulse
53 Disc
54 Valve member (injection needle)
55 Electromagnetic coil
56 connections
57 Controller
58 signal lines
59 Sensor element
60 First assembly position
61 Different installation positions
62 Return spring member
63 Connection
64 Sensor position
65 Needle guide
66 Acceleration sensor position
67 Contact pulse in counter control

Claims (15)

The position of the valve member (54) in which the valve member (54) of the injection valve is movable between the stoppers (41, 42) in the valve body (53) and the movement setting of the valve member (54) is currently captured. Seeking from
In a method for detecting and controlling the position of a valve member (54) of an injection valve,
Capturing the current position and suction / dissociation movement of the valve member (54) by the sensor element (59) and transmitting it to the controller (57);
The actuator member (2, 55) for operating the valve member (54) is controlled by the control device (57) to move the valve member (54) in an optimized manner with respect to speed and wear.
The attraction current course characteristic (46) of the actuator member (2, 55) includes an on phase / off phase (47, 48), and the duration and time of each phase depend on the signal of the sensor element (59). It is characterized by
A method for detecting and controlling a position of a valve member of an injection valve. The current position of the valve member (54) is obtained using an acceleration sensor, and the acceleration sensor is arranged in a region of the final position (41, 42) of the valve member (54) in the valve body (53). The method according to 1. A current position of the valve member (54) is obtained using a sensor element (59) for detecting the position of the valve member, and the sensor element (59) is attached to a spring member (62) in the valve body (53). The method of claim 1. The characteristics of the suction current (46) are controlled by the control device (57), and after the suction phase (43), the suction current (46) is reduced for a short period before the valve member (54) contacts the upper stopper (41). The method of claim 1, wherein the blocking is performed. The characteristics of the suction current (46) are controlled by the control device (57), and during the shut-off phase (45), the suction current (46) is short for a short period before the valve member (54) contacts the lower stopper (42). The method according to claim 1, wherein: The method according to claim 5, characterized in that the further shut-off window (48) of the suction current (46) extends over a shut-off phase (45) lasting for the duration of the return movement of the valve member by the spring member (62). 6. The method as claimed in claim 5, wherein an opposing pulse (50) emitted in the form of a block (51, 52) is superimposed on the suction current (46) in a separate blocking window (48) of the suction current (46). The electromagnetic coil (2) that generates the course characteristic of the attraction current (46) is controlled via the circuit device (1), and one or more during the pulse phase (32, 33, 34) of the main transistor (10) The method of claim 1, wherein the voltage (22) of the capacitor (5, 12) is increased. 9. The method according to claim 8, wherein the capacitor voltage (22) rises above the voltage level of the voltage source (4) in the first capacitor (5) of the circuit arrangement (1). After the end (28) of the pump phase (20), the decrease in the capacitor voltage (22) after the last voltage increase phase (27) is the current increase in the suction current I _V (46) of the electromagnetic coil (2, 55) (39 9. The method of claim 8, wherein the method is utilized to generate An apparatus for carrying out the method according to any one of claims 1 to 10,
The sensor element (59) for scanning the acceleration and the final position (41, 42) of the valve member (54) is accommodated in the valve body (53), and the sensor is connected to the control device (57). A device characterized by. The device according to claim 11, wherein the sensor element (59) is housed in the valve body (53) at a position (61) parallel to the direction of movement of the valve member (54). 12. Device according to claim 11, wherein the sensor element (59) is arranged in the valve body (53) in a position (60) perpendicular to the direction of movement of the valve member. The sensor element (59) is attached to a spring member (63) in the valve body (53), and is disposed laterally at an installation position (60) oriented perpendicular to the direction of movement of the valve member (54). 12. The method of claim 11, wherein: The sensor element (59) includes a ceramic piezoelectric fiber, and the piezoelectric fiber is subjected to a force acting on the stopper (41, 42) for controlling the valve member (54) by the actuator member (2, 55). 12. The apparatus of claim 11, wherein the apparatus generates a corresponding signal.

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