CN108699990A - Method for the air gap for determining electromagnetic injection valve device - Google Patents
Method for the air gap for determining electromagnetic injection valve device Download PDFInfo
- Publication number
- CN108699990A CN108699990A CN201780013922.8A CN201780013922A CN108699990A CN 108699990 A CN108699990 A CN 108699990A CN 201780013922 A CN201780013922 A CN 201780013922A CN 108699990 A CN108699990 A CN 108699990A
- Authority
- CN
- China
- Prior art keywords
- air gap
- magnetic armature
- injection valve
- stroke
- gap
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
- F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0635—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding
- F02M51/0642—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto
- F02M51/0653—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve
- F02M51/0657—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a plate-shaped or undulated armature not entering the winding the armature having a valve attached thereto the valve being an elongated body, e.g. a needle valve the body being hollow and its interior communicating with the fuel flow
-
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/28—Details of throttles in fuel-injection apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to one kind for determining electromagnetic injection valve device(200)Magnetic armature(252)Air gap(△LA)Method, the electromagnetic injection valve utensil has electromagnet(253), the electromagnet is with coil(254), by the way that the magnetic armature can be promoted for coil energization(252), wherein considering in the coil(254)In the coil during energization(254)In curent change process in the case of, determine the air gap, the air gap explanation is in the electromagnet(253)With the magnetic armature(252)The distance between.
Description
The present invention relates to a kind of method for determining the air gap of electromagnetic injection valve device and a kind of computing unit and it is used for
Its computer program executed.
Background technology
Internal combustion engine in the motor vehicle can have high pressure accumulator, i.e., so-called common rail, in the high pressure accumulator
In so that fuel is in(Such as to 3000bar's)In high pressure.Then, can from this high pressure accumulator by fuel via each
Fuel injector is introduced directly into the combustion chamber of internal combustion engine, and the fuel injector is connect with high pressure accumulator.
Electromagnetic injection valve device can be for example used as fuel injector, wherein by manipulation coil or electromagnet, or
Person, by being powered and being open to move needle with discharging injection for coil or electromagnet.
For example, from so-called direct switching known to 10 2,013 212 138 A1 of DE 10 2,010 041 109 A1 and DE
Electromagnetic injection valve device.Here, directly move needle by magnetic armature, the magnetic armature be a part for electromagnetic actuators simultaneously
And it is moved by for coil energization.
Invention content
According to the invention it is proposed that the feature with independent claims, air gap for determining magnetic armature method
And computing unit and the computer program for its execution, the especially initial air gap of the air gap and/or residual gap are described
Initial air gap illustrates the distance when not promoting magnetic armature between electromagnet and magnetic armature, and the residual gap explanation is by magnetic
Armature is promoted to sticking on backstop device(Such as adjustment plate or adjustment ring)Distance when place between electromagnet and magnetic armature.
Advantageous scheme is dependent claims and theme described below.
It is used for according to the method for the present invention by being powered come the air gap for the magnetic armature for determining electromagnet, especially exclusively for coil
It is initial air gap and/or residual gap.Here, during being thought of as coil and being powered the case where curent change process in coil
Under, determine air gap.Then, in particular, in the case where considering initial air gap and residual gap, it can determine the row of magnetic armature
Journey.Thus, it should be noted that the stroke of magnetic armature preferably corresponds to the difference of initial air gap and residual gap.
Here, the fact is utilized in the method proposed:Air gap in the electromagnetic actuators of solenoid valve(That is,
In magnetic armature and include the air gap between the electromagnet of coil)The influence of inductance with the coil to electromagnetic injection valve device, and
And therefore when applying a voltage at coil with the influence to the electric current in coil, temporal variation.Air gap is got over
It is small, the inductance of coil is higher and electric current in coil rise it is slower.Accordingly, air gap is bigger, and electric current for example rises ground
It is faster.Thus, it in this way, can be under the closed state of electromagnetic injection valve device by being suitably powered(That is, ought not carry
When rising magnetic armature)In the on-state(That is, when promoting magnetic armature as much as possible)Determine air gap, thus, it is possible to very simple
Ground determines magnetic armature stroke.Here, can for example be obtained by corresponding curent change process and the comparison of suitable fiducial value
For the value of initial air gap and residual gap, such as the fiducial value is determined in the frame that test measures.
The magnetic characteristic of component also has influence to curent change process and the correlation of air gap, in addition, the component
For electromagnetic injection valve device.Thus, for example using with small conductivity soft-magnetic composite material cause largely without
The magnet loop of vortex, to, air gap, small variation have resulted in magnetic characteristic, significantly change and thus result in
Curent change process, apparent variation.Then, it obviously can more accurately determine for initial air gap or residual gap
Value.Soft-magnetic composite material(For example, Somaloy)Conductivity be typically about 2.3103S/m, and common material(For example, B
hler P800)Conductivity be higher by three orders of magnitude, i.e., about 2.5106S/m。
Here, in accordance with destination, proposed method is executed in the end of production line so that in installation electromagnetic injection valve device
The stroke can be checked later and can be adapted to the stroke if necessary.Then, this electromagnetic injection valve device being capable of example
As being used as the fuel injector in internal combustion engine, the fuel injector is for introducing fuel.
The performance of electromagnet depends primarily on initial air gap and residual gap, and the performance is especially being opened or is being closed
When switching instant and switch speed in terms of and the performance in terms of stroke.Very more components has to initial air gap and remains
The influence of residual air gap, the component have its corresponding tolerance.If magnetic component is arbitrarily installed in production, in solenoid valve
Different samples between can occur significantly spreading.By measuring initial air gap after installing and accordingly correcting the amount
And residual gap, such as by selection group, tolerance can be significantly limited.
Advantageously, determining the air gap in the case where considering the time gradient of electric current of the curent change process.
As already mentioned, the air gap in the electromagnetic actuators of solenoid valve has an influence to the rising of electric current, also, thus have
Influence to the time gradient of electric current.On this point, air gap can be particularly simple determined in this way.
Preferably, in the case where considering the corresponding duration, determine that the air gap, the duration are necessary
, until the electric current of the curent change process is primary or repeatedly reaches corresponding, predetermined value.For determination
Initial air gap, such as specific voltage can be applied on coil, until electric current had reached it is attaching, predetermined
Value, the voltage is preferably the voltage of boost capacitor, because the voltage versus cell voltage of boost capacitor is more stable, the electricity
Stream is for example using zero or other, predetermined value as starting point.Then, the voltage reverse of polarity can be made, until electric current again
Secondary is zero or other, predetermined value.By repeating this operation, time effect is cumulative, enabling more simply
Determine or attach the amount of initial air gap.In order to determine residual gap, for example, also can specific voltage be applied to coil
Place, until electric current reaches maximum or maximum allowable value first, the voltage is preferably also boost capacitor herein
The voltage of device, because the voltage versus cell voltage of boost capacitor is more stable, the electric current is for example starting point with zero.As a result,
Magnetic armature can be promoted to and be reclined.Then, the voltage reverse of polarity can be made, until electric current had reached it is attaching, in advance
Determining value, i.e., until electric current drops to this value.Then, in the voltage reverse of polarity next time, electric current is true in advance from this
Fixed value starts to increase.By repeating this operation, time effect also adds up herein, enabling more simply determine or
Attach the amount of residual gap.
Preferably, the magnetic armature is not promoted enduringly, while it is described initial with determination to detect the curent change process
Air gap.This can for example be accomplished by the following way:As long as no up to or over limiting value, it is carried out energization, in institute
State the magnetic force that can be formed at limiting value and promote magnetic armature enough.In this way it is possible to it is very fast and it is accurate must carry out it is initial
The determination of air gap.
Advantageously, so that the magnetic armature holding is enduringly increased to the backstop device, while detecting the curent change
Process is with the determination residual gap.This can for example be accomplished by the following way:So execute energization so that do not reach
Or it is less than limiting value, reduce magnetic force to this extent for the limiting value so that for example by spring from electricity
Push magnetic armature at magnet open.In this way it is possible to determination that is very fast and accurately carrying out residual gap.
For this purpose, in accordance with destination, the energization for determining residual gap is so executed so that first carry the magnetic armature
It rises to and sticks at the backstop device.In this way it is possible to the determination to initial air gap is first carried out, and then,
In the case of promoting magnetic armature, the determination to residual gap is executed.
The electromagnetic injection valve device directly switched is used advantageously as electromagnetic injection valve device, wherein is especially considering institute
In the case of the stroke for stating magnetic armature, the stroke of the needle of the electromagnetic injection valve device is determined.Due to what is just directly switched
Magnetic armature is in direct contact with needle for electromagnetic injection valve device, and the stroke of magnetic armature also corresponds directly to the stroke of needle.Here,
The stroke of needle shows for fuel injection, important amount, because the fuel quantity of output is thus determined among other things, because
This is very important its accurate understanding.
Advantageously, in the case where considering the initial air gap and the residual gap, by being adapted to the backstop apparatus
Part and by the Traffic control system of the magnetic armature to desirable value.
Alternatively, using directly switch electromagnetic injection valve device when it is also preferred that instead of this magnetic armature stroke
The stroke of needle is directly adjusted in the case where considering initial air gap and residual gap by being adapted to backstop device by ground
Desirable value.
Advantageously, by being adapted to backstop device and/or corresponding distance, the initial air gap of magnetic armature can be also adjusted to
Desirable value.This also obtains the adaptation of stroke.
As mentioned, the method by being proposed can highly precisely determine the stroke or needle of magnetic armature
Stroke.If this present stroke does not correspond to desirable value for example(As it is for example arranged in specific internal combustion engine
In using ground), then stroke can particularly simple be changed by being adapted to backstop device so that reach desirable value.Suitable
With later, proposed method can be repeated if necessary, to check be adapted to stroke.The adaptation of backstop device being capable of example
Such as by by backstop device(That is, such as adjustment plate or adjustment ring)It is simply exchanged with the backstop device with other forms
And/or it is realized by repositioning.However, also it is contemplated that when installing solenoid valve, adaptation screws torque, with side change gas
Gap or stroke.
Also in accordance with purpose, identified air gap and/or formation are considered when manipulating electromagnetic injection valve device, that is,
It says, according to its previously given manipulation amount.For this purpose, the code that can be for example, especially read as machine, correspondence can be realized
Storage of the value on electromagnetic injection valve device or corresponding computing unit.
Computing unit according to the present invention(For example, measuring device or test device)It is set especially in program technic
It sets and is used for, execute according to the method for the present invention.Can this measuring device or test dress for example be set in the end of production line
It sets so that can check stroke after installing or manufacturing electromagnetic injection valve device and stroke can be adapted to if necessary.
Implementation of the method in a manner of computer program is also advantageous, because this leads to especially low cost, especially
It is when execute measuring device or test device be additionally operable to other tasks and therefore natively in the presence of.For providing
Especially magnetic, the optical and electric memory of computer program, suitable data medium, for example, hard disk, flash memory,
EEPROM, DVD etc..Pass through computer network(Internet, Intranet etc.)It is also possible to download program.
The present invention, other advantage and scheme in specification and appended attached drawing by obtaining.
With reference to embodiment, it is schematically depicted in the drawings the present invention, also, this is described hereinafter with reference to attached drawing
Invention.
Description of the drawings
Fig. 1 schematically shows the internal combustion engine with high pressure accumulator, wherein can be sprayed using illustrative solenoid valve
Emitter.
Fig. 2 schematically shows electromagnetic injection valve device, the electromagnetic injection valve device can be used for according to the present invention
Method.
Fig. 3 a to 3c show the change procedure of voltage, electric current and magnetic force when electromagnetic injection valve device is powered, and are such as executing
As the change procedure can occur in a preferred embodiment when according to the method for the present invention, the method is for true
Fixed initial air gap.
Fig. 4 show until repeatedly reach the duration of current value and for the electromagnetic actuators of solenoid valve just
Relationship between beginning air gap.
Fig. 5 a to 5c show the change procedure of voltage, electric current and magnetic force when electromagnetic injection valve device is powered, and are such as executing
As the change procedure can occur in a preferred embodiment when according to the method for the present invention, the method is for true
Determine residual gap.
Fig. 6 is shown until repeatedly reaching the duration of current value and remaining for the electromagnetic actuators of solenoid valve
Relationship between residual air gap.
Specific implementation mode
In Fig. 1, schematically and internal combustion engine 100 is simplifiedly shown, example can be used for the internal combustion engine
The electromagnetic injection valve device of property, also, the stroke of electromagnetic injection valve device must be adjusted for the internal combustion engine.Illustratively,
There are four combustion chamber 103 and an air intake duct 106, the air intake ducts to connect with each in combustion chamber 103 for the tool of internal combustion engine 100
It connects.
Electromagnetic injection valve device 200 is associated with each combustion chamber 103, and the electromagnetic injection valve device is for introducing a fuel into phase
In the combustion chamber 103 answered.Electromagnetic injection valve device 200 in high pressure accumulator 161(So-called track or common rail)The high pressure at place
Pipeline 162 connects.For the sake of clarity, one high pressure line 162 in electromagnetic injection valve device 200 is illustrated only, however,
It should be appreciated that each of electromagnetic injection valve device 200 is connect with high spool line.
Via high-pressure pump 160 fuel is supplied for high pressure accumulator 161 again.Here, high-pressure pump 160 is usually driven by internal combustion engine
It is dynamic.Here, electromagnetic injection valve device 200, high pressure line 162, high pressure accumulator 161 and high-pressure pump 160 are the height of internal combustion engine 100
The part of pressure system 165.
In addition, being provided with control device 115, electromagnetic injection valve device 200 can be manipulated using control device.
Than in more detail, schematically showing electromagnetic injection valve device 200, the electromagnetic injection valve in fig. 2 in Fig. 1
Device can be used for according to the method for the present invention.Herein, electromagnetic injection valve device 200 is configured to the solenoid valve directly switched spray
Emitter.
Electromagnetic injection valve device 200 has shell 211.In lower part(That is, arranging in a combustion chamber)End, shell
211 at least one(However, usually multiple)Injection opening 217, to introduce a fuel into the combustion chamber of internal combustion engine.
It is configured with bearing surface 218 at the inner wall of shell 211, lower part end, the case where constructing seal receptacle 211
Under, the bearing surface acts synergistically in needle 220, decline position with needle 220, corresponding mating surface, the valve
Needle can be arranged up and down.The needle 220 of pin-shaped is received in its longitudinal axis 222 in shell 211.
Here, constructing hyperbaric chamber 224, the hyperbaric chamber passes through supply orifice 225 and high pressure line 162 and high pressure accumulator
161 connections(As shown in Figure 1), also, thus with by the filling fuels of high pressure.
In the section of shell 211, lower part end, needle 220 have leader 228, the section have compared with
The overall diameter of small diameter, the leader adapts to the interior diameter of shell.Leader 228 has through hole 229, described
There is through hole inlet throttle valve 230, the inlet throttle valve hyperbaric chamber 224 to be made to be connect with storage volumes 231, the valve just promoted
For needle 220, fuel is output in the combustion chamber of internal combustion engine again via injection opening 217 by the storage volumes.
In hyperbaric chamber 224, needle 220 optionally has the thickening part 232 of annular, the thickening part such with ring 233
Synergistic effect so that be configured between the periphery and the interior diameter of ring 233 of thickening part 232 and squeeze gap 234 so that thicken
Portion 232 and ring 233 construct the damping unit 235 of hydraulic action, and the ring at least surrounds to section thickening part 232 radially,
The damping unit is used to buffer the movement of needle 220.
In addition, there is shell 211 through hole 236, the through hole to use at plate shape or annular leader 246
In needle 220.Through hole 236 works as the sealing element 237 for hyperbaric chamber 224, exactly so works, makes
It obtains and is flowed by the direction in through hole 236 towards shell 211, top region from hyperbaric chamber 224, as few as possible fuel
It is dynamic.Meanwhile through hole 236 works as the radial directed portion for needle 220 so that, this needle is additional to guide portion
Divide 228 ground, be radially guided by through hole 236.
It is axially spaced with through hole 236, in shell 211, top region it is disposed with other sealing element
238, the sealing element is plate shape or annular in the described embodiment.Second sealing element 238 has through hole
239, the through hole surrounds needle 220 with spaced radial.Sealing element 240, the sealing element quilt are disposed in through hole 239
It is arranged to the periphery abutting contact with needle 220.
The intermediate space 242 of annular can be connect by unloading port 243 with fuel return portion 244, and the intermediate space exists
Between through hole 236 and other sealing element 238, the unloading port is illustratively prolonged in shell 211, top end
It stretches, the fuel return portion imports reflux vessel 243 again.Fuel is exported from shell 211 by through hole 236 as a result, really
Say such export with cutting so that be substantially absent from intermediate space 242(Relative to ambient enviroment)Raised hydraulic pressure, institute
Fuel is stated to overflow in intermediate space 242 from hyperbaric chamber 224.
Receiving chamber 248 is configured in shell 211, the receiving chamber is used for electromagnetic actuators 250.In shown implementation
In example, electromagnetic actuators 250 have the magnetic armature 252 of plate shape, and the magnetic armature is connect with the end regions of needle 220, described
Magnetic armature is preferably made of soft magnetic materials.Magnetic armature 252 with have(It is preferred that be made of soft iron)The electromagnet 253 of magnetic core cooperates with
Effect, the electromagnet are disposed in receiving chamber 248, and coil 254 is introduced into electromagnet.
Coil 254 is connect with voltage source so that electric current I can flow in coil 254, described as long as coil 254 is powered
Voltage source is capable of providing voltage U.Here, voltage source or voltage U can be provided for example by control device 115, work as electromagnetism
Valve injector 200 is installed in internal combustion engine and is obtained there in use, as shown in Figure 1.
However, if for example determining magnetic armature or needle in the end of production line in the frame of the method proposed
Stroke, then either voltage U can be provided voltage source by suitable measuring device or test device, herein illustratively
By being configured to the computing unit 200 of test device, the computing unit can also detect and assess electricity if necessary in addition
Flow change procedure.
When needle 220 closes valve seat, 252 present range electromagnet of magnetic armature, 253 specific distance, herein with △ LA
To indicate the distance.This distance is also referred to as initial air gap.
Magnetic core 253 has receiving part, and either through hole 255 is disposed with spring 257 in the receiving part or through hole,
One end face of the spring against(For example, in the form of adjustment plate)261 ground of adjusting device and on it against shell
211 ground support, also, its another end face and needle 220, act synergistically towards its end face.Receiving chamber 248 passes through ventilation
Hole 258 is connect with ambient enviroment so that with(Environment)Air is full of receiving chamber 248, and the ventilation hole is disposed in shell
In 211.
Hereinafter, it should briefly illustrate that electromagnetic injection valve device 200 makes as fuel injector in internal combustion engine
The function of used time.By high pressure accumulator, to be filled hyperbaric chamber 224 by the fuel of high pressure.Needle 220, in the accompanying drawings
In shown down position, in the case where forming seal receptacle 221, by case spring 257 against 218 ground squeezing valve of bearing surface
Needle so that close injection opening 217.
First, coil 254 is not powered on.In order to spray fuel, it is powered for coil 254 so that magnetic armature 252 overcomes bullet
It is increased from bearing surface 218 to the closing force of spring 257, to discharge injection opening 217, the magnetic armature and 220 rigidity of needle
Connection.Here, the movement of needle 220 is buffered by damping unit 235.
Here, magnetic armature 252 is promoted to the backstop device 260 that reclines is promoted to shell, the backstop device herein by
The adjustment plate being configured on the thickening part 232 of annular.In this position, magnetic armature is maximally promoted, that is to say, that it is
Through having reached its stroke H, also, magnetic armature 252 is then referred to as residual gap at a distance from electromagnet 253.
In order to close injection opening 217, coil 254 is set to be detached with voltage source again so that needle 220 is due to spring 257
Spring force sticked on again at bearing surface 218 in the case where forming seal receptacle 221.If it is necessary, it is this movement also by
Damping unit 235 is influenced or is buffered.
In Fig. 3 a to 3c, it is schematically shown that voltage U(It is in V), electric current I(As unit of A)With magnetic force F
(As unit of N)It is respectively relative to time t when the coil of electromagnetic injection valve device is powered(As unit of ms), different variation
Process, as the electromagnetic injection valve device illustratively in fig. 2 shown by as, such as the change procedure preferably implementing
Executed in mode it is according to the present invention, for determining initial air gap method when can occur as.
Here, for voltage U, electric current I and magnetic force F, change procedure U is respectively illustratedi,IiOr Fi(i =
1,……5), wherein label i represents initial air gap △ LA, different value, i.e., 240 μm, 230 μm, 220 μm, 210 μm and 200
μm respectively represent label 1,2,3,4 or 5.
Show that voltage U, the voltage are applied on coil in fig. 3 a.As in fig 3b it can be seen that, once
Electric current I in coil has had reached predetermined value(Herein, such as 5A), then make the voltage reverse of polarity, the electricity
Stream is since 0A.Then, once electric current I is down to 0A again, then make the voltage reverse of polarity again.This behaviour can be repeated several times
Make.
In fig 3b, it can be seen that curent change process is different according to the size of initial air gap.Initial air gap is smaller, then
The duration for reaching the particular value of electric current is longer.Its reason is that coil, higher inductance, the inductance pass through closer
Magnetic armature realize, as already mentioned.
It is the change procedure of magnetic force F in figure 3 c, the change procedure is associated with the electric current I in coil, and electromagnet is real
The magnetic force is showed, has introduced a coil into the electromagnet.Here, the magnetic force realized respectively is not enough to promote magnetic armature.
In fig. 4 it is shown that until repeatedly(Herein, five times)Reach current value(Herein, 5A)Duration
The △ t and initial air gap △ L for the electromagnetic actuators of solenoid valveABetween relationship.Here, illustrating duration △ with ms
T, and initial air gap △ L are illustrated with mmA.Herein, it can be seen that initial gas gap △ LASmaller, duration △, t was longer, such as it
As being obtained in Fig. 3 b.
In Fig. 5 a to 5c, it is schematically shown that voltage U(It is in V), electric current I(As unit of A)With magnetic force F
(As unit of N)It is respectively relative to time t when the coil of electromagnetic injection valve device is powered(As unit of ms), different variation
Process, as the electromagnetic injection valve device illustratively in fig. 2 shown by as, such as the change procedure preferably implementing
As capable of occurring when executing method according to the present invention, for determining residual gap in mode.
Here, for voltage U, electric current I and magnetic force F, change procedure U ' is respectively illustratedi,I'iOr F 'i(i =
1,……5), wherein label i represents residual gap, different value, i.e., the generation respectively of 30 μm, 40 μm, 50 μm, 60 μm and 70 μm
List notation 1,2,3,4 or 5.
Show that voltage U, the voltage are applied on coil in fig 5 a.As in figure 5b it can be seen that, once
Electric current I in coil has had reached a value(Herein, such as 12A), then the voltage reverse of polarity, the electric current is made to be opened from 0A
Begin, i.e., without promoting magnetic armature.Then, once electric current I is down to predetermined value again(Herein, such as 7A), then again
The reverse of polarity.In addition to the initial promotion of magnetic armature(For that purpose it is necessary to for longer periods apply voltage U), can be repeated several times this
Operation.
In figure 5b, it can be seen that curent change process is different according to the size of residual gap.Residual gap is bigger, then
The duration that electric current is down to particular value is longer.Its reason is that coil, higher inductance, the inductance pass through closer
Magnetic armature realizes, as already mentioned.
Herein, compared with initial air gap, relationship is opposite, because making electromagnet magnetize first so that higher electricity
Sense leads to electric current, slower reduction when air gap is smaller.
It is the change procedure of magnetic force F in fig. 5 c, the change procedure is associated with the electric current I in coil, and electromagnet is real
The now magnetic force introduces a coil into the electromagnet.Here, the magnetic force realized respectively is also not enough to farthest promote magnetic
Armature.
In fig. 6 it is shown that until repeatedly(Herein, four times)Reach current value(Herein, 12A)Duration
△t'(After reaching this value for the first time)With the residual gap △ L for the electromagnetic actuators of solenoid valveRBetween
Relationship.Duration △, t ' was provided with μm herein, and residual gap △ LRIt is provided with mm.Herein, it can be seen that duration △
T ' is longer, then residual gap △ LRIt is bigger, as this also as Fig. 5 b it can be seen that as.
It, can by being suitably powered and if necessary by the comparison with fiducial value as obtained in from Fig. 4 to 6
Determine the initial air gap and residual gap of solenoid valve.Then, the stroke of the stroke of magnetic armature or needle is simply by initial gas
It is obtained in gap and the difference of residual gap, that is to say, that △ LA-△LR。
Can for example this determination of stroke be executed in the end of production line.Then, desired by being different from when the value of stroke
Or when required value, adjustment plate(It is as shown in FIG. 2.)It can be by adjustment plate with other height, in addition
It replaces, the other adjustment plate provides for example smaller or bigger stroke.It can be for example by replacing adjustment plate 261
To be adapted to residual gap.Here, stroke can be also redefined, to check the row actually realized using new adjustment plate
Journey.
Claims (16)
1. for determining electromagnetic injection valve device(200)Magnetic armature(252)Air gap method, the electromagnetic injection valve utensil has
Electromagnet(253), the electromagnet is with coil(254), by the way that the magnetic armature can be promoted for coil energization
(252),
Wherein, considering in the coil(254)In the coil during energization(254)In curent change process(Ii)Feelings
Under condition, the air gap is determined, the air gap explanation is in the electromagnet(253)With the magnetic armature(252)The distance between.
2. according to the method described in claim 1, wherein, considering the curent change process(Ii,I'i)Electric current(I)When
Between in the case of gradient, determine the air gap.
3. according to claim 1 or claim 2, wherein considering the corresponding duration(△t,△t')The case where
Under, determine that the air gap, the duration are necessary, until the curent change process(Ii,I'i)The electric current(I)
Once or repeatedly reach corresponding, predetermined value.
4. according to any method of the preceding claims, wherein determine initial air gap as air gap(△LA), described
Initial air gap explanation is not promoting magnetic armature(252)When in the electromagnet(253)With the magnetic armature(252)Between away from
From.
5. according to the method described in claim 4, wherein, not promoting the magnetic armature enduringly(252), while detecting the electricity
Flow change procedure(Ii)With the determination initial air gap(△LA).
6. according to any method of the preceding claims, wherein determine residual gap as air gap(△LR), described
Residual gap explanation is by magnetic armature(252)It is promoted to and sticks on backstop device(260)In the electromagnet when place(253)And institute
State magnetic armature(252)The distance between.
7. according to the method described in claim 6, wherein, making the magnetic armature(252)Holding is enduringly increased to the backstop
Device(260), while detecting the curent change process(I'i)With the determination residual gap(△LR).
8. according to the method described in claim 6 or 7, wherein in order to determine the residual gap(△LR), so execute institute
State energization so that first by the magnetic armature(252)It is promoted to and sticks on the backstop device(260)Place.
9. according to the method described at least any one of claim 6 to 8 of reference claim 4, wherein described just in consideration
Beginning air gap(△LA)With the residual gap(△LR)In the case of, determine the magnetic armature(252)Stroke(H).
10. according to the method described in claim 9, wherein, considering the initial air gap(△LA)With the residual gap(△
LR)In the case of, by being adapted to the backstop device(260)And by the magnetic armature(252)The stroke(H)It is adjusted to institute
Desired value.
11. according to the method described in claim 9 or 10, wherein considering the stroke(H)In the case of, pass through adaptation
Adjusting device(261)And/or corresponding distance and by the magnetic armature(252)The initial air gap(△LA)It is adjusted to wish
The value of prestige.
12. the method according to any one of claim 9 to 11, wherein as electromagnetic injection valve device(200)Using direct
The electromagnetic injection valve device of switching, and wherein, especially considering the magnetic armature(252)The stroke(H)In the case of,
Determine and/or adjust the electromagnetic injection valve device(200)Needle(220)Stroke.
13. the method for manipulating electromagnetic injection valve device, wherein according to air gap and/or according to the magnetic armature(252)Or
The needle(220)Stroke carry out previously given manipulation amount, determine according to any method of the preceding claims
The air gap, method according to any one of claim 9 to 12 determine the stroke.
14. computing unit(280), the computing unit is set to execute side according to any one of the preceding claims
Method.
15. computer program, the computer program makes computing unit(280)It executes according to any one of claim 1 to 13
The method, when in the computing unit(280)It is upper execute it when.
16. the storage medium that machine can be read, the storage medium have it is being stored thereon, according to described in claim 15
Computer program.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016203182.1A DE102016203182A1 (en) | 2016-02-29 | 2016-02-29 | Method for determining an air gap of a solenoid valve injector |
| DE102016203182.1 | 2016-02-29 | ||
| PCT/EP2017/052685 WO2017148664A1 (en) | 2016-02-29 | 2017-02-08 | Method for determining an air gap of a magnetic valve injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108699990A true CN108699990A (en) | 2018-10-23 |
| CN108699990B CN108699990B (en) | 2021-05-25 |
Family
ID=58016695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780013922.8A Active CN108699990B (en) | 2016-02-29 | 2017-02-08 | Method for determining an air gap of a solenoid injector |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20180112036A (en) |
| CN (1) | CN108699990B (en) |
| DE (1) | DE102016203182A1 (en) |
| WO (1) | WO2017148664A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702146A (en) * | 2020-06-30 | 2020-09-25 | 江苏理工学院 | Electromagnetic valve jet type cooling device for aluminum alloy die-casting die core |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10020896A1 (en) * | 2000-04-29 | 2001-10-31 | Lsp Innovative Automotive Sys | Position detection method for armature of electromagnetic setting device e..g. for gas changing valve of IC engine |
| CN101595291A (en) * | 2006-12-14 | 2009-12-02 | 罗伯特·博世有限公司 | Fuel injection system and the method that is used for determining needle stroke stop at Fuelinjection nozzle |
| CN101688624A (en) * | 2007-07-06 | 2010-03-31 | 罗伯特·博世有限公司 | Method for determining a position of an armature in a solenoid valve and a device for operating a solenoid valve with an armature |
| DE102008044217A1 (en) * | 2008-12-01 | 2010-06-02 | Robert Bosch Gmbh | Method for operating electromagnetic actuation unit, particularly electromagnetic operating valve, for example fuel injection valve or brake valve, involves determining current stroke of valve element in consideration of size |
| DE102010041423A1 (en) * | 2010-09-27 | 2012-03-29 | Robert Bosch Gmbh | Method for adjusting size of air gap between armature and hollow cylindrical quiescent state counter-element of magnetic valve, involves determining start position of armature, and stopping movement of armature during reaching position |
| DE102011076363A1 (en) * | 2011-05-24 | 2012-11-29 | Continental Automotive Gmbh | Determining the standard series opening behavior of a fuel injector based on a test opening behavior under the influence of a test pulse with constant voltage |
| CH709613A1 (en) * | 2014-05-08 | 2015-11-13 | Liebherr Machines Bulle Sa | Method and device for determining the armature stroke of a magnetic actuator. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010041109A1 (en) | 2010-09-21 | 2012-03-22 | Robert Bosch Gmbh | Fuel injector for use in e.g. common-rail system, for injecting fuel into combustion chamber of self-ignition combustion engine, has magnetic armature and actuator arranged in injector housing end region that lies opposite to aperture |
| DE102013212138A1 (en) | 2013-06-25 | 2015-01-08 | Robert Bosch Gmbh | fuel injector |
-
2016
- 2016-02-29 DE DE102016203182.1A patent/DE102016203182A1/en not_active Withdrawn
-
2017
- 2017-02-08 WO PCT/EP2017/052685 patent/WO2017148664A1/en active Application Filing
- 2017-02-08 KR KR1020187026808A patent/KR20180112036A/en not_active Application Discontinuation
- 2017-02-08 CN CN201780013922.8A patent/CN108699990B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10020896A1 (en) * | 2000-04-29 | 2001-10-31 | Lsp Innovative Automotive Sys | Position detection method for armature of electromagnetic setting device e..g. for gas changing valve of IC engine |
| CN101595291A (en) * | 2006-12-14 | 2009-12-02 | 罗伯特·博世有限公司 | Fuel injection system and the method that is used for determining needle stroke stop at Fuelinjection nozzle |
| CN101688624A (en) * | 2007-07-06 | 2010-03-31 | 罗伯特·博世有限公司 | Method for determining a position of an armature in a solenoid valve and a device for operating a solenoid valve with an armature |
| DE102008044217A1 (en) * | 2008-12-01 | 2010-06-02 | Robert Bosch Gmbh | Method for operating electromagnetic actuation unit, particularly electromagnetic operating valve, for example fuel injection valve or brake valve, involves determining current stroke of valve element in consideration of size |
| DE102010041423A1 (en) * | 2010-09-27 | 2012-03-29 | Robert Bosch Gmbh | Method for adjusting size of air gap between armature and hollow cylindrical quiescent state counter-element of magnetic valve, involves determining start position of armature, and stopping movement of armature during reaching position |
| DE102011076363A1 (en) * | 2011-05-24 | 2012-11-29 | Continental Automotive Gmbh | Determining the standard series opening behavior of a fuel injector based on a test opening behavior under the influence of a test pulse with constant voltage |
| CH709613A1 (en) * | 2014-05-08 | 2015-11-13 | Liebherr Machines Bulle Sa | Method and device for determining the armature stroke of a magnetic actuator. |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702146A (en) * | 2020-06-30 | 2020-09-25 | 江苏理工学院 | Electromagnetic valve jet type cooling device for aluminum alloy die-casting die core |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180112036A (en) | 2018-10-11 |
| CN108699990B (en) | 2021-05-25 |
| WO2017148664A1 (en) | 2017-09-08 |
| DE102016203182A1 (en) | 2017-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107110053B (en) | Driving device of fuel injection device | |
| US7819637B2 (en) | Solenoid valve, flow-metering valve, high-pressure fuel pump and fuel injection pump | |
| JP2576861B2 (en) | Fuel injection device for internal combustion engine | |
| US20100084587A1 (en) | Fluid-working machine | |
| JPH06241144A (en) | Fuel injection device for internal combustion engine | |
| JPH09112731A (en) | Solenoid valve and fuel pump using the solenoid valve | |
| US20120205470A1 (en) | Method for producing a fuel injection valve, and fuel injection valve | |
| CN101900214B (en) | Valve for distributing fluids | |
| CN102362319A (en) | Residual air split disc | |
| RU2517518C2 (en) | Fuel injector with electromagnet armature composed of two parts | |
| US10088069B2 (en) | Electromagnetically actuated valve | |
| JP2018519467A (en) | Nozzle assembly with adaptive closure signal | |
| CN109952622A (en) | The method of magnet valve for controlling the fuel injector | |
| JP5874696B2 (en) | Fuel injection valve | |
| CN108699990A (en) | Method for the air gap for determining electromagnetic injection valve device | |
| KR20020033416A (en) | Internal combustion engine fuel injection apparatus and control method thereof | |
| US20110049406A1 (en) | Solenoid valve without a remanent air gap disk | |
| JP6498293B2 (en) | Injection valve for injecting fluid, method of using the injection valve, and method of manufacturing the injection valve | |
| CN111058969B (en) | Fuel injector, method for operating a fuel injector | |
| CN108779747B (en) | Fuel injection device | |
| JP5293226B2 (en) | Solenoid valve and fuel injection device using solenoid valve | |
| JP7013181B2 (en) | Fuel injection device | |
| CN105392982A (en) | Injector arrangement | |
| JP2009236095A (en) | Fuel injection device | |
| CN109751145A (en) | Method for controlling fuel injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |