CN104047731B - Method for running electric petrolift - Google Patents
Method for running electric petrolift Download PDFInfo
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- CN104047731B CN104047731B CN201410087232.5A CN201410087232A CN104047731B CN 104047731 B CN104047731 B CN 104047731B CN 201410087232 A CN201410087232 A CN 201410087232A CN 104047731 B CN104047731 B CN 104047731B
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- petrolift
- electric current
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 37
- 230000009467 reduction Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims 3
- 239000000446 fuel Substances 0.000 description 37
- 230000006870 function Effects 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- 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
- F02D41/3082—Control of electrical fuel pumps
-
- 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
- F02D2041/2048—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit said control involving a limitation, e.g. applying current or voltage limits
-
- 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
- F02D2041/2058—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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
- F02D2041/226—Fail safe control for fuel injection pump
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
The present invention relates to a kind of methods for running electric petrolift, in particular for the method for the electric petrolift of operation spraying equipment, wherein the voltage to be applied on electric petrolift presets threshold limit value（48）, the default threshold limit value of electric current to flow through electric petrolift（62）, wherein measure the value for the electric current that electric petrolift needs（62）, wherein for the value of electric current measured（62）More than preset threshold limit value（64）The case where, for the preset threshold limit value of voltage being applied on electric petrolift（48）The value measured depending on electric current（62）It reduces.
Description
Technical field
The present invention relates to a kind of methods and control device for running electric petrolift.
Background technology
The function of spraying equipment for internal combustion engine can be controlled by control device.In order to which diesel oil is sprayed into internal combustion engine
So-called EDC can be used in combustion chamber（Electronic Diesel Control（Electronic diesel controls））Control device.
The output stage of EDC control devices usually designs in this way, i.e., the current needs of the adjustment means of spraying equipment are on unfavorable operation side
It can also there is no problem is met under the conditions of boundary.This be externally provided with one for monitoring module, using the module occur it is former
When barrier, such as output stage can be cut off in short circuit or overheat.
The adjustment means of spraying equipment can be designed as electric petrolift（EKP）, which is examining in normal operation
Only there are a restricted current needs, however the current needs are in exception feelings in the case of considering all preset boundary conditions
Can illustrate raising under condition.However in exceptional cases, such as when due to fuel contamination especially severe or since fuel meat is solidifying
Firmly（Versulzung）And pressure is caused to decline more, then current needs are ramping up.In FPC（Feed Pump Control
（Supply pump controls））In equipment, pass through electric petrolift（EKP）The rail pressure of spraying equipment is adjusted, as a result, the electricity of electric petrolift
Stream demand depends greatly on the operating point of spraying equipment.
There is fuel storage device this（Common rail）Spraying equipment in, the pressure of fuel is additionally depended on by being for example designed as
The amount for the fuel that the petrolift of high-pressure pump is conveyed, and depending on the pressure of fuel on the input terminal of petrolift and for transporting
The required electric current of row electricity petrolift.However, in different examples and depending on for the voltage needed for operating point on petrolift
There is strong variation in environmental condition.Therefore the design of spraying equipment needs the big voltage range of the permission of electric petrolift,
However this is in exceptional cases, such as when dropping under stress more, such as may cause relative to just on fuel filter
Electric current significantly improved in the case of often, on petrolift.However, the design of the output stage of electric petrolift is directed in spraying equipment
Within the maximum possible electric current compared with the design of the electric current only occurred under normal circumstances cost it is relatively higher.
10 2,010 030 872 A1 of open source literature DE describe a kind of indicatrix for determining adjustment spraying equipment
Amendment indicatrix method, wherein it includes the indicatrix that measures relative to theory characteristic curve to correct indicatrix
At least one deviation.Here, at least one deviation includes one of at least two components of the spraying equipment of effect characteristics curve
Gross tolerance.
Invention content
It is proposed that there is a kind of method of feature and a kind of control device described in independent claims in this context.The present invention
Other design schemes by being obtained in dependent claims and specification.
The electric petrolift of the component of spraying equipment can will be designed as by the design of output stage using the present invention（EKP）'s
Levels of current is limited to a maximum permissible value and thus protects the output stage.
Utilize the fuel storage device of electric petrolift conveying fuel quantity to spraying equipment（Common rail）In, wherein the amount additionally depends on
The voltage value that is applied on petrolift and/or the current value for flowing through petrolift.Pass through the amount and electric current and/or voltage conveyed
The pressure of the fuel in fuel storage device can also be adjusted（Rail pressure）.Therefore voltage can be used as in design scheme
Adjust the adjustment parameter of pressure.Alternatively or additionally, the pressure of fuel can depend at least another adjuster, such as
Pressure-regulating valve is adjusted.Codomain is equipped with for voltage, which is defined by the minimum and maximum limit value of voltage.Voltage exists
Current value in the operating point of petrolift passes through limitation function unit in design scheme（Begrenzungsfunktion）Quilt
It is restricted to the codomain.
Moreover, it is proposed that can also also be exerted one's influence to the current value for flowing through petrolift by the current value of fuel pressure.
This may cause：Current value depends on pressure to rise and be more than being the preset threshold limit value of electric current.In this case, voltage
Codomain, be typically voltage threshold limit value can be by having reduction functional unit in the design scheme of this method
（Reduktionsfunktion）Closure regulating loop reduce a corresponding current measured value that may depend on electric current number
Value, until the current value of electric current is less than preset threshold limit value thus.In addition, the threshold limit value of voltage can depend on measuring
Voltage scheduled gradient at any time reduce and thus depend on the variation in time of voltage and reduce.
Here, being applied based on measuring, being conveyed by the electric petrolift or required electric current for flowing through electric petrolift to limit
The voltage being added on electric petrolift.Usually voltage end value is restricted to one by limitation function unit herein passes through maximum limit
Codomain defined in value and minimum limit value.Here, can continuously be reduced by the scheduled voltage domain of limitation function unit and
It is based on closure, for check the current value measured whether be more than limit value regulating loop be accurately set to current desired value
Domain, wherein usually reducing the threshold limit value of voltage.The power of spraying equipment is maintained in the range of maximum license and obtains as a result,.
Here, also ensured that in the case of even if the undesirable big pressure of fuel declines in the low tension loop of spraying equipment can be with
Simultaneously therefore the motor vehicle thus to be driven can be used using the spraying equipment of internal combustion engine.
When implementing this method, voltage end value in the initial state is set to maximum limit by limitation function unit
It value and therefore limits.In addition, activation reduces functional unit when the electric current for flowing through electric petrolift is more than preset limit value,
Wherein the threshold limit value can for example be determined by the design of output stage.
Reduce functional unit（Reduktionsfunktion）The current value of voltage is obtained first.In addition, starting reduces work(
Can unit and the scheduled gradient based on voltage at any time, be typically based on the voltage measured and/or based on it is decreased most
Big voltage limits reduce maximum voltage limit value, wherein the ladder from the maximum voltage limits by reducing functional unit
Degree can also depend on the variation in time of the current value and/or electric current that measure.
There is also such possibilities：In short time be more than current limit the case where, as its for example spraying equipment and/
Or it as occurring in the dynamic operation of petrolift, can be tolerated.In this case, after electric current is more than limit value,
Activation reduce functional unit before, wait for a specific period, the period for example can by timing module measure and/or
Monitoring.If the current value currently measured drops to during the period under limit value, reduction functional unit is not activated,
In addition so that timing module is stopped and reset to it within the period.
Integrator is also activated in order to reduce voltage value, which is designed for so that the threshold limit value of voltage is from current
Voltage value sets out as long as reduction so, until the value of electric current reaches the range of the permission under preset limit value again.One
There is such case in denier, then closes integrator, wherein will be set to reached threshold limit value to the limitation of the codomain of voltage.
If current value increases at the time of one later and except the range of permission, reactivates integrator and continue to drop
Low-voltage limit value.Here, using be closed regulating loop, however the regulating loop depend on current value be permission range it
It is interior or except only temporarily activate.
To the fuel storage device of spraying equipment（Track）In the adjusting of pressure of fuel continue to keep work without restriction
Make, the adjusted value of the voltage of electric petrolift in spraying equipment can be preset using this adjusting.However, if setting voltage
The limit value of reduction, then can be with limit injection equipment and/or the range of operation of internal combustion engine, wherein can for example reduce spraying equipment
Emitted dose and/or internal combustion engine torque.It is possible thereby to which the fuel of the adjusting deviation of pressure, namely spraying equipment is avoided to store
The adjusting deviation of fuel pressure in device.This can be as fault reaction by Trouble Report, by pre- in the range of this method
If reduction functional unit and/or be arranged by the limitation function unit of voltage, or independently pass through specialized types with this
, the monitoring of rail pressure is implemented.If low pressure range is for example intervened by adjustable throttling, can be in reality
The limitation of the voltage to the electric petrolift of spraying equipment is shown when applying this method.
If fuel pressure is clogged and/or due to fuel filter due to fuel meat in the low pressure range of spraying equipment
Block and increase and the current needs of electric petrolift increase in turn, then there is a possibility that when implementing this method it is such,
I.e. by adjusting, be typically to reduce voltage to change the operating point of electric petrolift, and current needs are readjusted normal
Range of operation in.Here, the conveying capacity of electric petrolift reduces and makes in the low pressure range of spraying equipment as its result
Pressure drop（Druckabfall）It reduces, so as to reduce the current needs of electric petrolift and current needs is made to return
Into the codomain of permission, which defines by maximum limit value and as necessary by the minimum limit value of electric current.
The further advantage and design scheme of the present invention is obtained by the description and the appended drawings.
Self-evidently, above-mentioned and below it may also be noticed that feature not only can in the combination accordingly provided, and
And in other combinations or can also be used alone, without departing from the scope of the present invention.
Description of the drawings
Fig. 1 shows the chart of the first embodiment for proposed method；
Fig. 2 shows the charts of the second embodiment for this method；
The control device that Fig. 3 shows an example of the spraying equipment with electric petrolift and proposed in the diagram
An embodiment.
Specific implementation mode
Embodiment in reference to the accompanying drawings schematically shows the present invention and this hair is described in detail below in reference to attached drawing
It is bright.
Attached drawing is described briefly and uniformly, identical reference numeral indicates identical component.
Fig. 1 generally comprises five charts, that is, first pressure-time chart 2 and second pressure-time chart 4,
In respectively set along time of the record as unit of millisecond of abscissa 6 and the injection that is respectively recorded as unit of bar along ordinate 8
Standby middle fuel pressure.In addition Fig. 1 shows the first current-time plot 10 and the second current-time plot 12, same respectively tool
There is abscissa 6, the time as unit of millisecond is recorded along the abscissa.In addition, two current-time plots 10,12 respectively wrap
Ordinate 14 is included, the electric current for flowing through the electric petrolift of spraying equipment is recorded along the ordinate as unit of ampere.On the left side
When one pressure versus time chart 2 and the first current-time plot 10 and the second pressure-time chart 4 and the second electric current-on the right
Between middle part between chart 12, another chart 15 is shown in FIG. 1, which includes abscissa 16, is recorded along the abscissa
Fuel pressure as unit of bar.The first ordinate 18 along chart 15 is recorded to be upgraded to the fuel delivery of unit per hour
And record the electric current for flowing through petrolift as unit of ampere along the second ordinate 20.
It is designed as in first proposed the embodiment of this method：Due in spraying equipment fuel filter it is stifled
Plug, as first pressure-time chart 2 shows, pressure value is from the first operating point 22s within the period 24 of 50ms
It increases and reaches raised value in the second operating point 26, pressure is 4.2bar in the first operating point.It follows that such as first
Illustrated by current-time plot 10, it is interior from the first operating point 22 to flow through period 24 of the electric current of electric petrolift in 50ms
The significantly raised value being increased in the second operating point 26, flows through the electric current of 7.5A herein for the first operating point, wherein
It is designed as, the current value in the second operating point 26 is more than preset limit value thus.The voltage on electric petrolift is applied to two
With 95% the first duty factor 27 in a operating point 22,26.
As for current value to be increased to the countermeasure on pre-set limit, the voltage being applied on electric petrolift is reduced
The threshold limit value of permission.In addition, the 95% of voltage the first duty factor is lowered to 85% the second duty factor.In this regard, ginseng
Examine chart 15, the figure shows go out in 95% the first duty factor 27 depending on the first current curve 28 of pressure and 85%
The second duty factor 29 when the second current curve 30 depending on pressure.In order to compare, chart 15 also shows that the perseverance of 7.5A
The curve 32 of constant current.Since the cause of the reduction of the threshold limit value of voltage also reduces levels of current, which results also from 95%
The first duty factor 27 be reduced to 85% the second duty factor 29.Thus the fuel conveyed by electric petrolift is conveyed
The pressure of fuel is also reduced for amount.Chart 15 shows this depending in 95% the first duty factor 27 conveying capacity
First curve 34 of pressure and in 85% the second duty factor 29 conveying capacity the second curve 36 depending on pressure, wherein
In lower 85% the second duty factor 29, the second curve 36 depending on pressure of conveying capacity is less than first accounts for 95%
The first curve 34 depending on pressure when empty factor 27.
The duty factor 27,29 from 95% of voltage is reduced to 85% herein when the voltage implemented in the range of this method is adjusted
Also in third operating point 38 pressure and electric current act, in third operating point occur 85% the second duty factor.
By the reduction of duty factor 27,29 and thereby voltage, occupied pressure is lowered in third in the second operating point 26
Smaller value in operating point 38, as shown in second pressure time chart 4.In addition, the raised electricity in the second operating point 26
Stream is lowered to the value 7.5A small in comparison in third operating point 38 again.
The structure of second embodiment of proposed method is shown by chart according to fig. 2.Shown in chart
The method structure gone out can be realized in the control device for implementing this method as software.
The structure of second embodiment for implementing the method proposed includes the limit controlled by control device
Functional unit 56 processed, the limitation function unit will be applied to the feed-in of the voltage on electric petrolift（eingehend）Value 42 limits
Make the codomain between the minimum lower limiting value 46 and maximum upper limit value 48 of voltage.Two limit values 46,48 of the codomain of voltage
The fuel storage device of spraying equipment can be passed through in the design（Track）The adjusting depending on voltage of middle fuel pressure（Track pressure
Power is adjusted）It is predetermined.The pressure of fuel in fuel storage device additionally depends on the amount of fuel, and the amount is by electric petrolift according to application
The electric current that voltage and basis on electric petrolift flow through electric petrolift is delivered to fuel storage device from electric petrolift.
By input signal by feed-in, the voltage value 42 that currently measures be conveyed to limitation function unit 56.In addition, by limiting
Functional unit 56 processed is provided by output signal for voltage, end（ausgehend）Synthesized value 44.Here, electric
The end value 44 of pressure corresponds to the value 42 of the feed-in of voltage, as long as the value 42 of the feed-in of voltage is in the preset of the codomain of voltage
Within limit value 46,48.The voltage end value 44 provided by output signal by limitation function unit 56 then corresponds to minimum
Limit value 46, as long as the value 42 of the feed-in of voltage is less than minimum limit value 46.If the value 42 of the feed-in of voltage is more than most on the contrary
Big limit value 48, then voltage end value 44 maximum limit value 48 is restricted to by limitation function unit 56.
As long as no activation functional unit is reduced, then the first switch 59 for connecting voltage is at and is shown here
On first position.The preset maximum value 47 of voltage is used as to the threshold limit value 48 of limitation function unit 56 in this case.
The value 62 of the electric current of electric petrolift measured is in the module 70 designed for comparing by compared with the limit value 64 of electric current.If
The value 62 of electric current measured is more than limit value 64, then the switching of second switch 52 for turn-on current and is started Timer module 72
（Timer）, wherein it is measured using Timer module 72, how long the value 62 of electric current measured is more than preset limit thus if having
Value 64.It monitors herein, the value 62 of electric current measured is more than limit value 64 whether longlyer than the time interval of definition.
In addition, will be between the value 62 measured and preset limit value 64 of electric current by the second switch 52 for turn-on current
Poor 68 formed in the module 78 for calculating poor 68 are transferred to integrator 54.As long as the value 62 measured is more than the limit value of electric current
64, it is concluded that minus tolerance 68.When the value 49 there are when minus tolerance 68, exported from integrator 54 for the threshold limit value 48 of assigned voltage and
A numerical value is continuously reduced, which depends on poor 68 and therefore depending on the value 62 of electric current measured, be more than herein pre-
If threshold limit value 64.That numerical value that the threshold limit value 48 of voltage is reduced can also depend on the gradient drop of voltage at any time
It is low.It can have been dropped come the time graph of the value measured to voltage and/or in procedure using scheduled gradient at this
The time graph of low voltage threshold limit value is taken into account.
If the value 62 of electric current measured is more than limit value 64 after having been expired by the 72 preset period of Timer module,
Trigger 74 is then set（Trigger）And thus switching third switch 58 is for connecting integrator 54 and setting trigger circuit
The initiating terminal of module 76（Ausgang）.By switching switch 58, the currently provided, voltage by limitation function unit 56 is utilized
End value 44 integrator 54 is initialized once.First switch 59 is switched to second by the initiating terminal of trigger circuit module 76
It sets and keeps first switch 59 in this position, wherein the end value 49 provided by integrator 54 is transmitted consecutively over the non-scheduled traffic channel
To limitation function unit 56 for the threshold limit value 48 of update voltage.Due to integrator 54 as already described like that continuously
Reduce its end value 49, therefore the threshold limit value 48 of the continuous codomain for reducing voltage and the end value for also continuously reducing voltage in turn
44。
If the value 62 of present electric current measured is less than limit value 64, readjustment is designed for the starting of the module 70 compared
End, thus in order to which turn-on current adjusts back second switch 52 into its initial position.Thus the input terminal of integrator 54 is set as
Zero, to keep the current end value 49 of integrator 54 and no longer change it.The threshold limit value 48 of limit value functional unit 56
Therefore value 49 being provided by integrator 54, reducing is provided and this is maintained.If the value 62 of electric current measured
Again be more than limit value 64, then again switching for turn-on current second switch 52 and by the limit value of the value 62 and electric current that measure
Negative value 68 between 64 is transferred to the input terminal of integrator 54, wherein continues to reduce being used for from the value 49 of integrator 54s
Set the limit value 48 of voltage.
For the end value 44 of voltage, obtained in the embodiment of this method：Functional unit is reduced by activation
And current end value will be set as by the voltage threshold limit value 48 that its end value 49 is newer and/or initializes by integrator 54
44.It is then continuous to reduce threshold limit value 48 and therefore concomitantly reduce end value 44, as long as the value 62 of electric current measured is more than
Preset limit value 64 thus.
Usually and this independently obtains this possibility：Voltage end value 44 meets preset and/or feed-in voltage value
42, wherein the value 42 of feed-in can be by the adjusting of the pressure of the fuel in the fuel storage device of spraying equipment（Rail pressure tune
Section）Operating point predetermined and/or depending on spraying equipment, as long as the value 42 of feed-in is in minimum limit value 46 and threshold limit value 48
Between codomain within.
Counter 80 is also shown in Fig. 2, the counter calculate voltage threshold limit value 48 depend on electric current the value 62 measured,
It is dropped depending on poor 68 and/or the time gradient depending on voltage between the value 62 and preset electric current threshold limit value 64 measured
Low frequency.It is at least some by Fig. 2 descriptions, the modules that are designed to carry out this method can be by the control device that is proposed
Implement and/or be designed as the component of control device.This further relate to switch 52,58,59, designed for be compared module 70,
Timer module 72, module 78, integrator 54, trigger 74, trigger circuit module 76 and counter 80 for calculating poor 68.
Control device can also have at least one component for realizing limit value functional unit 56 and reduction functional unit.
An example of the spraying equipment 100 of the internal combustion engine of motor vehicle is schematically shown in figure 3.The spraying equipment
100 include the electric petrolift 102 as component, which is used to deliver fuel into the fuel of spraying equipment 100
Memory 104（Common rail）.The embodiment of control device 106 is also schematically shown in figure 3, designed for regulation and control spray
At least one component of jet device 100 at least the function of electric petrolift 102 and is accordingly used in controlling the function
And/or it adjusts.Here, control device 106 also regulates and controls the operating parameter of electric petrolift 102, is for example applied on electrojet pump 102
Voltage and flow through the electric current of petrolift 102, typically it is monitored and is set.In addition, control device 106 is designed for
Implement at least one step of at least one embodiment according to Fig. 1 and 2 methods proposed.
In the method for electric petrolift 102 implemented by control device 106, for running spraying equipment 100, for applying
The voltage being added on electric petrolift 102 presets maximum limit value, and the electric current for flowing through electric petrolift 102 presets threshold limit value.
This external pelivimetry by the electric current needed for electric petrolift value.For the preset threshold limit value pair of voltage being applied on electric petrolift 102
It value based on the electric current measured and/or is reduced according to the value in the value of electric current measured is more than preset threshold limit value the case where.
The threshold limit value of the default voltage being applied on electric petrolift can take in the range of the method proposed
Certainly reduced at any time in the scheduled gradient of voltage.Here, the variation of the gradient or voltage of voltage in time can be related to surveying
The variation of variation and/or voltage threshold limit value in time of the voltage obtained in time, at any time when this method is implemented
It is decreased or reduced.
The numerical value that voltage threshold limit value is reduced can depend between the value measured and the threshold limit value of electric current of electric current
Difference.It is possible that the work(that the threshold limit value of the voltage numerical value to be reduced passes through the numerical value for the voltage in design scheme
Energy unit determines, depends on the scheduled gradient of the difference and/or voltage between the value and preset maximum value measured.
Furthermore, it is possible to which the preset threshold limit value for the voltage being applied on electric petrolift is for example utilized reduction function
Unit continuously or step by step reduces, until electric current is less than or is less than once again preset maximum limit value.
In order to reduce the limit value of voltage, the duty factor for the voltage being applied on electric petrolift 102 can also be reduced.
It in another design, can be with for the preset voltage threshold limit value of voltage that is applied on electric petrolift 102
It is reduced when the default threshold limit value of electric current is at least exceeded within a preset and/or definable period.
Addedly, when electric current is less than limit value, the threshold limit value for the voltage being applied on electric petrolift 102 can be lowered
To minimum value, wherein keep the minimum value of voltage.
For running the control device 106 with the operation in turn for regulating and controlling electric petrolift 102 and/or spraying equipment 100
Be designed for, measured using the ammeter of control device 106 being arranged thus the electric current needed for electric petrolift 102 and for
The case where electric current is more than preset threshold limit value based on and therefore depend on the gradient of electric current and/or voltage currently measured come
It is reduced to the preset threshold limit value of the voltage being applied on electric petrolift 102.
Control device 106 can have integrator and/or realize integrator, be designed for, depend on the survey in electric current
Value and the preset threshold limit value of electric current between difference reduce voltage threshold limit value it is such as long as, until electric current less than permit
Perhaps threshold limit value.
Claims (9)
1. one kind is for running spraying equipment（100）Electric petrolift（102）Method, wherein in the electric petrolift
（102）The voltage of upper application presets a kind of maximum voltage limit（48）, and for flowing through the electric petrolift（102）'s
Electric current presets a kind of maximum current limit value（64）, wherein measurement is by the electric petrolift（102）The value of required electric current
（62）, and wherein, for the value of electric current measured（62）More than preset maximum current limit value（64）The case where, make
It obtains in the electric petrolift（102）The default maximum voltage limit of voltage of upper application（48）Depending on electric current
The value measured（62）Ground reduces, wherein reduces in the electric petrolift（102）The default maximum of voltage of upper application
Voltage limit（48）, until the value of electric current measured（62）Less than preset maximum current limit value（64）Until.
2. according to the method described in claim 1, wherein so that in the electric petrolift（102）The voltage institute of upper application
Preset maximum voltage limit（48）It is reduced depending on the scheduled gradient of voltage at any time.
3. method according to claim 1 or 2, wherein so that in the electric petrolift（102）The voltage of upper application
Default maximum voltage limit（48）Continuously reduce.
4. method according to claim 1 or 2, wherein so that in the electric petrolift（102）The voltage of upper application
Default maximum limiting value is reduced using a kind of reduction functional unit.
5. method according to claim 1 or 2, wherein in the electric petrolift（102）The voltage of upper application accounts for
Empty factor is lowered.
6. method according to claim 1 or 2, wherein if the value of electric current measured（62）It is at least preset one
It is more than preset maximum current limit value in period（64）, then it is used in the electric petrolift（102）The voltage of upper application
Maximum voltage limit（48）It is lowered.
7. method according to claim 1 or 2, wherein if the value of electric current measured（62）Less than maximum electric current
Limiting value（64）, then it is used in the electric petrolift（102）The maximum voltage limit of the voltage of upper application（48）It is reduced to
Minimum value, wherein keep the minimum value of voltage.
8. one kind is for running spraying equipment（100）Electric petrolift（102）Control device, wherein it is described for being applied to
Electric petrolift（102）On voltage preset a kind of maximum voltage limit（48）, and to flow through the electric petrolift（102）
Electric current preset maximum current limit value（64）, wherein the control device（106）It is designed for, measurement is fired by the electricity
Material pump（102）Required electric current, and wherein, the control device（106）It is designed for, for the value of electric current measured
（62）More than preset maximum current limit value（64）The case where so that in the electric petrolift（102）Upper application
The default maximum voltage limit of voltage（48）The value measured depending on electric current（62）Ground reduces, wherein reduction pair
In in the electric petrolift（102）The default maximum voltage limit of voltage of upper application（48）, until the measurement of electric current
The value arrived（62）Less than preset maximum current limit value（64）Until.
9. control device according to claim 8, the control device has integrator（54）, the integrator design use
In so that it is used for the maximum voltage limit of voltage（48）As long as reducing so, until the value of electric current measured（62）It is low
In the maximum current limit value of permission（64）Until.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013204235.3 | 2013-03-12 | ||
| DE102013204235 | 2013-03-12 | ||
| DE102013204725.8 | 2013-03-18 | ||
| DE201310204725 DE102013204725A1 (en) | 2013-03-12 | 2013-03-18 | Method for operating an electric fuel pump |
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| Publication Number | Publication Date |
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| CN104047731A CN104047731A (en) | 2014-09-17 |
| CN104047731B true CN104047731B (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410087232.5A Active CN104047731B (en) | 2013-03-12 | 2014-03-11 | Method for running electric petrolift |
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| CN (1) | CN104047731B (en) |
| DE (1) | DE102013204725A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10450994B2 (en) * | 2014-11-24 | 2019-10-22 | Ford Global Technologies, Llc | Method and system for fuel system control |
| DE102017107907A1 (en) * | 2017-04-12 | 2018-10-18 | Volkswagen Aktiengesellschaft | Method for controlling a fuel delivery module and fuel delivery module |
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|---|---|---|---|---|
| US6019113A (en) * | 1998-10-26 | 2000-02-01 | General Motors Corporation | Method and apparatus for controlling a shape memory alloy fuel injector |
| CN1474045A (en) * | 2002-08-09 | 2004-02-11 | ������������ʽ���� | Internal Combustion engine fuel jet and ignitor |
| CN1746474A (en) * | 2004-09-08 | 2006-03-15 | 株式会社电装 | Fuel-jetting system |
| RU2005136219A (en) * | 2005-11-22 | 2007-06-10 | Сергей Александрович Богатырев (RU) | ASYNCHRONOUS MOTOR POWER SUPPLY |
| CN101482065A (en) * | 2008-01-07 | 2009-07-15 | 株式会社日立制作所 | Fuel injection control apparatus for internal combustion engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175481A1 (en) * | 2002-09-23 | 2005-08-11 | Harbuck E. S. | Low cost fuel pump and filter assembly |
| DE102010030872A1 (en) | 2010-07-02 | 2012-01-05 | Robert Bosch Gmbh | Method for determining a correction characteristic |
| JP5698938B2 (en) * | 2010-08-31 | 2015-04-08 | 日立オートモティブシステムズ株式会社 | Drive device for fuel injection device and fuel injection system |
-
2013
- 2013-03-18 DE DE201310204725 patent/DE102013204725A1/en active Pending
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2014
- 2014-03-11 CN CN201410087232.5A patent/CN104047731B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6019113A (en) * | 1998-10-26 | 2000-02-01 | General Motors Corporation | Method and apparatus for controlling a shape memory alloy fuel injector |
| CN1474045A (en) * | 2002-08-09 | 2004-02-11 | ������������ʽ���� | Internal Combustion engine fuel jet and ignitor |
| CN1746474A (en) * | 2004-09-08 | 2006-03-15 | 株式会社电装 | Fuel-jetting system |
| RU2005136219A (en) * | 2005-11-22 | 2007-06-10 | Сергей Александрович Богатырев (RU) | ASYNCHRONOUS MOTOR POWER SUPPLY |
| CN101482065A (en) * | 2008-01-07 | 2009-07-15 | 株式会社日立制作所 | Fuel injection control apparatus for internal combustion engine |
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|---|---|
| DE102013204725A1 (en) | 2014-09-18 |
| CN104047731A (en) | 2014-09-17 |
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