CN102803689A - Determination of the lift delay of a magnetic valve - Google Patents
Determination of the lift delay of a magnetic valve Download PDFInfo
- Publication number
- CN102803689A CN102803689A CN2010800264705A CN201080026470A CN102803689A CN 102803689 A CN102803689 A CN 102803689A CN 2010800264705 A CN2010800264705 A CN 2010800264705A CN 201080026470 A CN201080026470 A CN 201080026470A CN 102803689 A CN102803689 A CN 102803689A
- Authority
- CN
- China
- Prior art keywords
- magnet valve
- trigger
- measuring phases
- opening
- current
- 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
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001507 sample dispersion Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to a method for determining the opening delay time of a magnetic valve. The invention further relates to a control unit for actuating at least one magnetic valve in an injection system of an internal combustion engine. In order to determine a current opening delay time of a magnetic valve, it is proposed to execute an actuation of the magnetic valve during a measuring phase, and to determine a difference from the beginning of the actuation and the opening time of the magnetic valve. In order to determine the opening time, an actuation of the magnetic valve is carried out during a measuring phase. During the actuation, the actuating current is observed. If a change in the actuating current is detected, it is assumed that the opening time has been reached. Preferably, an at least approximately constant actuating voltage is applied to the magnetic coil during the measuring phase. Specifically, the predeterminable change is a flattening of the actuating current, which preferably is determined by determining a minimum of the differentiated power signal.
Description
Technical field
The present invention relates to a kind of method of opening retard time that is used for confirming magnet valve.In addition, the present invention relates to the control apparatus of at least one magnet valve in a kind of injection apparatus that is used for triggering internal-combustion engine.
The present invention also relates to a kind of computer program, this computer program can move especially being used on the calculating equipment to trigger on the control apparatus of magnet valve.
Background technique
Magnet valve is the switch valve of handling with electric means, and said switch valve is installed in and is used to measure gas or liquid in the diversified field.Such as the fuel injector of in internal-combustion engine, packing into through magnet valve control, said fuel injector can measure and be the needed fuel that in internal-combustion engine, burns.For gasoline direct and common rail injection, inject fuel directly in the firing chamber of internal-combustion engine.For the burning quality of internal-combustion engine and thus for its consumption and exhaust gas properties, the fuel quantity that is measured has the meaning of decision.The fuel quantity that is measured depends on opening the endurance of magnet valve again.Saidly open the endurance and regulate through the triggering endurance that is called the endurance of switching on that is arranged on the magnet valve coil in the magnet valve.For the co-rail ejector that is used for diesel injection, magnet valve is configured to the high-pressure hydraulic that servovalve and triggering are arranged in the back, and what said high-pressure hydraulic was being controlled valve needle again opens motion and closing movement.For gasoline direct, the needle of jet blower directly triggers through magnet valve.
Saidly open triggering endurance that the endurance is equivalent to said magnet valve and deduct so-called lifting and postpone and add the so-called result who closes the endurance.Said lifting postpones to have described from the triggering of magnet valve to begin the retard time up to its moment of opening; Saidly close the endurance and then described from the triggering of magnet valve and finish retard time up to its moment of closing.
If known opening the endurance, that just can use suitable adjusting method, is used for regulating best the triggering endurance of magnet valve.
Summary of the invention
Task of the present invention is; Be provided for confirming a kind of method and a kind of device that promotes delay retard time in other words of opening of magnet valve; Wherein said to open retard time be current as far as possible, thereby can consider the sample dispersion on the one hand and such as considering deterioration phenomenon and the fuel metering that can be optimized on the other hand.
Said task is resolved through independent claims 1,10 and 12 described characteristics.Other advantage of the present invention obtains from the characteristic of being mentioned in the dependent claims.
By the present invention, in measuring phases, implement the triggering of field coil and open with it moment to obtain a difference from the beginning of the triggering of said magnet valve.In order in measuring phases, to confirm to open the triggering of implementing magnet valve constantly.In trigger process, observe trigger current.If in trigger current, identify variation, that just infers this situation constantly of opening that reaches.Preferably in said measuring phases, at least almost constant trigger voltage is loaded on the field coil.Guarantee thus to discern the variation in the trigger current reliably,, but cause by the performance of field coil itself because said variation is not to be caused by the triggering that changes.Said can predefined variation the smoothness of trigger current (Abflachung) especially, the detection of the minimum value of the current signal that said smoothness is preferably passed through to be distinguished is tried to achieve.
The invention has the advantages that the sample dispersion of further reduction emitted dose, because saidly can apply to each magnet valve individually by method of the present invention.This point realizes through the mode of taking into account retard time of opening that in adjusting method, will have tolerance.Amount control when the metering fuel amount is then through carrying out the adjustment of opening the endurance.Open this mode retard time through in independent measuring phases, measuring, can freely select the trigger voltage of magnet valve and the trigger voltage of magnet valve in the normal running of internal-combustion engine, not to be restricted.Said measuring phases can or automatically begin on specific operation point in the specific moment.
Said opening tried to achieve from opening constantly with the difference that triggers beginning of said magnet valve retard time, and wherein known said triggering begins and from the current curve of the trigger current of magnet valve, tries to achieve said opening retard time by the present invention.Begin will be as much as possible constant voltage from said triggering is loaded on the field coil and such as the trigger current that detects and observe magnet valve through so-called measurement divert shunt resistor (Mess-Shunt) for this reason.Measuring divert shunt resistor is low-impedance resistance, and this resistance is also referred to as shunt resistance.Observe, from the moment of opening of magnet valve, it is level and smooth that the current curve of said trigger current becomes.This smoothness of current signal is used for identification by the present invention and opens constantly.
The identification of the smoothness of current signal is tried to achieve such as the detection of the minimum value of the current signal that can pass through to be distinguished.The detection of said differentiation and said minimum value can partly or can perhaps be carried out by means of microcontroller through the signal processing of numeral through similar pretreatment at this fully.
Said magnet valve open the voltage that constantly depends on trigger current, trigger magnet valve by means of said trigger current.Therefore, advantageously in one or more operation point, confirm to open constantly with defined trigger voltage separately.Open the moment from what each was so tried to achieve, can release opening characteristic outward for other trigger voltage and open in other words constantly.
In principle, also can in the normal trigger process of magnet valve, implement said measuring phases.But, yet advantageously select at least almost constant trigger voltage in this case, be used to guarantee to discern reliably open constantly.
What acquire a special sense is; Form with computer program realizes the present invention; This computer program can move especially being used on the calculating equipment fuel of internal-combustion engine sprayed on the control apparatus of controlling and/or adjusting, and wherein said computer program programming is used to implement said by method of the present invention.Said computer program is preferably kept on storage medium electronics or optics.
Description of drawings
Other advantage of the present invention, characteristic and details obtain from following explanation, in following explanation, illustrate and describe various embodiment of the present invention.This in claim and the characteristic of in specification, being mentioned individually or with arbitrarily the combination all possibly be important for purposes of the invention.Accompanying drawing illustrates as follows:
Fig. 1 is the schematic representation of very simplifying with internal-combustion engine of fuel injection system and a plurality of magnet valves,
Fig. 2 a is the schematic detailed view in the running state of closing of a kind of exemplary embodiments of magnet valve,
Fig. 2 b is the schematic detailed view in the running state of opening of a kind of exemplary embodiments of magnet valve,
Fig. 3 is the schematic representation of current curve, voltage curve and the valve-lift curve of magnet valve,
Fig. 4 is the exemplary current curve that is used for two kinds of different voltages with different of trigger current, the derivative of current curve and the schematic representation of valve needle lift,
Fig. 5 is the schematic flow chart by a kind of mode of execution of method of the present invention.
Embodiment
Fig. 1 shows internal-combustion engine 10, and this internal-combustion engine 10 comprises fuel reserve tank 12, from this fuel reserve tank 12, by means of transporting system 14 fuel is transported in the fuel high pressure pipeline 16.Said pressure duct 16 is such as being configured to common rail.Said pressure duct 16 is connected with magnet valve 18, and said magnet valve 18 can inject fuel directly in the firing chamber 20 of distributing to said magnet valve 18 respectively.Said internal-combustion engine 10 and especially such as the operation of the fuel injection system that constitutes through transporting system 14, pressure duct 16 and magnet valve 18 by controlling adjustment in other words such as the control and the regulating device that are control apparatus 22.Said control apparatus 22 can detect input value and provide output value to trigger executive component in other words and especially trigger said magnet valve 18.
Fig. 2 shows at the magnet valve shown in Fig. 1 18 with schematically amplifying.Said magnet valve 18 has the executive component of electromagnetism, said executive component have field coil 26 and with said field coil 26 coefficient magnetic armature 30.Therefore said magnetic armature 30 is connected with needle 28, makes this magnetic armature 30 to move about the vertical moving direction in Fig. 2 of said needle 28.Valve spring 36 is applied to elastic force on the said needle 28, thereby this needle 28 is remained in the valve seat 38.
Fig. 3 shows the curve of trigger current 60, trigger voltage 61 and the valve stroke 62 of said magnet valve 18.
Begin to trigger said magnet valve 18 at moment T0.Open said magnet valve 18 at moment T1.The time lag between T0 and the T1 is called lifting and postpones to open in other words t retard time
01Still open up to the said magnet valve 18 of moment T2.Time lag t
12Represent opening the endurance of this magnet valve 18.
Moment T4 finish the triggering of magnet valve 18 and at moment T5 with time lag t
45Carry out the pass closed procedure of magnet valve 18.Said time lag t
45Be equivalent to T5 constantly and poor between the T4 constantly.Close at the said magnet valve 18 of moment T6.
Show normal runnability in the situation shown in Fig. 3, be used for metering needed fuel 42 when burning such as magnet valve 18 in the running of internal-combustion engine 10.For this reason at first at so-called pressurization stages t
02In extra high voltage is loaded on the said magnet valve 18, be used for realizing as far as possible apace that electric current rises.At so-called battery stage t
23The middle voltage that reduces trigger current is with terminates electric current ascent stage.Between moment T3 and T4, trigger said magnet valve 18 through single voltage pulse, said voltage pulse is used to keep trigger current.
The so-called endurance t that opens
16Can come as follows thus to confirm:
T
16=t
04-t
01+t
46
This means the said endurance t that opens
16Can be from triggering endurance t
04In come to confirm, wherein from said triggering endurance t
04In deduct said t retard time that opens
01And add the above turn-off delay time t
46
Fig. 4 exemplarily shows in by measuring phases of the present invention two current curve 60a, 60b, current curve 60a, derivative 70a, 70b and the valve needle lift curve 80a of 60b, 80b.At curve 70a, 70b is last can find out, significant separately local minimum value is opened said magnet valve 18 corresponding to moment T1a and T1b at said moment T1a and T1b.
In said measuring phases, select the constant trigger voltage of said valve.This point also must be guaranteed when in the internal combustion engine operation process, carrying out said measuring phases, because otherwise can not from current curve, identify reliably and open constantly.
When internal-combustion engine 10 operation, not in all ranges of operation, all to guarantee in the normal trigger process of said magnet valve 18 at electric current ascent stage pressurization stages t just
02In fact reaching the said T1 constantly that opens during end.Said pressurization stages can not at random prolong up to the T1 constantly that opens that reaches said magnet valve 18 reliably when the said magnet valve 18 of triggered as normal, impinges upon on the valve backstop because import the high speed of said magnet valve 18 ether through higher energy necessary concerning this.Preferred measurement of therefore only in selected range of operation, implementing to open moment T1.As replacement scheme or additional project, said measurement can be implemented in independent measuring phases for this reason.In such measuring phases, it is suitable advantageously than in normal trigger process then can to select, just such as the low trigger voltage of employed valve trigger voltage in normal course of injection.Through employed less trigger voltage in measuring phases, prolonged measured t retard time that opens
01Subsequently therefore with said t retard time that opens
01Be scaled opening retard time of when the operation trigger voltage, producing.Because actual opens retard time significantly less than measured opening retard time, so only the actual triggering of form influence of measurement error very to weaken.
Preferably in said independent measuring phases, implement the real-time signal analysis of current curve.Open T1 constantly in case detect, that just interrupts measuring phases immediately.But can avoid reducing at least the injection situation of the fuel quantity of not expecting thus.If select lower trigger voltage, that has just reduced the precision of opening of said needle 28, and all of a sudden injected fuel amount 42 is reduced to for internal-combustion engine 10 unessential yardsticks thus.
Fig. 5 shows the flow chart of very simplifying of said a kind of mode of execution by method of the present invention.Said method begins in step 100, the said measuring phases of beginning in this step 100.Especially here trigger magnet valve 18 by means of trigger current 60.In step 101, detect and observe said trigger current 60.In step 101 such as the derivative 70a, the 70b that form detected trigger current 60.
Whether inspection exists the variation of trigger current 60 in step 102, and this variation shows the said situation of T1 constantly of opening that reaches.Such as the derivative 70a that studies said trigger current 60 subsequently, the curve of 70b, see whether exist local minimum value for this reason.If not this situation, that just proceeds monitoring in step 101.
If open the existence of T1 constantly but in step 102, detect, that just is being kept at the moment of opening of being tried to achieve in the suitable combined characteristic after in measuring phases, being compensated by selected less trigger voltage induced effects in step 103 in case of necessity.In step 104 from tried to achieve open constantly release for other operation point is outer and to open the moment and it is saved in the said combined characteristic equally.
Claims (12)
1. be used for confirming (the t that opens retard time of magnet valve (18)
01) method; It is characterized in that; In measuring phases, trigger said magnet valve (18) and open constantly with it and obtain a difference (T1) from the beginning of the triggering of said magnet valve (18); Wherein saidly open constantly that (T1) triggers said magnet valve (18) in said measuring phases for confirming, in said trigger process, observe trigger current (60) and in the said trigger current of identification (60) can predefined variation the time infer the moment (T1) this situation of opening that reaches.
2. by the described method of claim 1, it is characterized in that, in said measuring phases, at least almost constant trigger voltage (60a, 60b) is loaded on the said magnet valve (18).
3. by claim 1 or 2 described methods, it is characterized in that, observe said trigger current (60 by means of measuring shunt; 60a, 60b).
4. by each described method in the aforementioned claim, it is characterized in that, saidly can predefined variation describe trigger current (60; 60a, 60b) smoothness.
5. by the described method of claim 4, it is characterized in that, try to achieve said smoothness through detection to the minimum value of the trigger current distinguished.
6. by each described method in the aforementioned claim; It is characterized in that, at least one operation point, confirm saidly to open constantly and (T1) the said opening characteristic that is used for another kind of at least trigger voltage is extrapolated to another operation point from said opening constantly with defined trigger voltage.
7. by each described method in the aforementioned claim; It is characterized in that; In independent measuring phases, try to achieve said opening retard time, make that what in said measuring phases, do not depend on said magnet valve (18) is the triggering that purpose is carried out with the injection for the trigger current (60,60a, 60b) of said magnet valve (18).
8. by the described method of claim 7; It is characterized in that; In said independent measuring phases, so select said trigger voltage; Make said trigger voltage be lower than the trigger voltage that in the process of the normal operation of magnet valve, loads, and make open retard time (T1) that in the process of normal operation, occurs calculating on the said basis of opening retard time of in independent measuring phases, trying to achieve.
9. by claim 7 or 8 described methods, it is characterized in that, in said measuring phases, try to achieve and saidly open constantly (T1) and in case identify and open constantly that (T1) just interrupts said measuring phases by means of real-time signal analysis.
10. be used for triggering the control apparatus (22) of at least one magnet valve (10) in the injection apparatus of internal-combustion engine (10), it is characterized in that, said control apparatus (22) is set is used for implementing by each described method of claim 1 to 9.
11. by the described control apparatus of claim 10 (22); It is characterized in that; Said control apparatus (22) is set is used for triggering said magnet valve (18) with low trigger voltage like this, thereby will in said measuring phases, injected fuel amount (42) be reduced to unessential yardstick concerning the operation of internal-combustion engine (10) in said measuring phases.
12. computer program; This computer program can especially be gone up operation at the control apparatus that is used to trigger magnet valve (18) (22) on calculating equipment; It is characterized in that said computer program programming is used for when on said calculating equipment, carrying out this computer program, implementing by each described method of claim 1 to 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910026930 DE102009026930A1 (en) | 2009-06-15 | 2009-06-15 | Determining the lift-off delay of a solenoid valve |
| DE102009026930.4 | 2009-06-15 | ||
| PCT/EP2010/057638 WO2010145936A1 (en) | 2009-06-15 | 2010-06-01 | Determination of the lift delay of a magnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102803689A true CN102803689A (en) | 2012-11-28 |
| CN102803689B CN102803689B (en) | 2016-06-01 |
Family
ID=42286675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080026470.5A Expired - Fee Related CN102803689B (en) | 2009-06-15 | 2010-06-01 | The determination promoting delay of magnet valve |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2443333B1 (en) |
| CN (1) | CN102803689B (en) |
| DE (1) | DE102009026930A1 (en) |
| WO (1) | WO2010145936A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965395A (en) * | 2016-10-20 | 2018-04-27 | 三菱电机株式会社 | Injector control apparatus and injector control method |
| CN108141910A (en) * | 2015-10-02 | 2018-06-08 | Bsh家用电器有限公司 | Household appliance |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201207289D0 (en) * | 2011-06-14 | 2012-06-06 | Sentec Ltd | Flux switch actuator |
| DE102011086151A1 (en) | 2011-11-11 | 2013-05-16 | Robert Bosch Gmbh | Method for operating solenoid valve, particularly fuel injection valve of combustion engine, involves driving coil and moving armature between resting seat and stroke stop |
| JP6398930B2 (en) | 2015-09-24 | 2018-10-03 | 株式会社デンソー | Injection control device |
| DE102020213705A1 (en) | 2020-10-30 | 2022-05-05 | Volkswagen Aktiengesellschaft | Method for determining an opening time of an injector with a solenoid valve, computer program, control unit, internal combustion engine and motor vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3426799A1 (en) * | 1984-07-20 | 1986-01-23 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR CONTROLLING THE AMOUNT OF FUEL TO BE INJECTED INTO AN INTERNAL COMBUSTION ENGINE |
| DE3942836A1 (en) * | 1989-12-23 | 1991-06-27 | Daimler Benz Ag | METHOD FOR DETECTING THE MOTION AND POSITION OF A COMPONENT OF A INDUCTIVE ELECTRICAL CONSUMER THROUGH MAGNETIC INTERACTION BETWEEN TWO END POSITIONS |
| DE4011217A1 (en) * | 1990-04-06 | 1991-10-10 | Lucas Ind Plc | Controlling magnetic-valve in antilocking braking system - ascertaining function of valve by tapping voltage of transistor setting current flow through solenoid |
| DE4308811A1 (en) * | 1992-07-21 | 1994-01-27 | Bosch Gmbh Robert | Diesel engine EM actuated fuel metering valve controller - has current sensor feeding back information to controller to determine on and off switching points of valve |
| WO1994013991A1 (en) * | 1992-12-08 | 1994-06-23 | Pi Research Ltd. | Electromagnetic valves |
| US20080148831A1 (en) * | 2006-10-27 | 2008-06-26 | Ford Motor Company | Methods and systems for testing electromagnetically actuated fuel injectors |
-
2009
- 2009-06-15 DE DE200910026930 patent/DE102009026930A1/en not_active Withdrawn
-
2010
- 2010-06-01 WO PCT/EP2010/057638 patent/WO2010145936A1/en active Application Filing
- 2010-06-01 CN CN201080026470.5A patent/CN102803689B/en not_active Expired - Fee Related
- 2010-06-01 EP EP10720182.4A patent/EP2443333B1/en not_active Not-in-force
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3426799A1 (en) * | 1984-07-20 | 1986-01-23 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR CONTROLLING THE AMOUNT OF FUEL TO BE INJECTED INTO AN INTERNAL COMBUSTION ENGINE |
| DE3942836A1 (en) * | 1989-12-23 | 1991-06-27 | Daimler Benz Ag | METHOD FOR DETECTING THE MOTION AND POSITION OF A COMPONENT OF A INDUCTIVE ELECTRICAL CONSUMER THROUGH MAGNETIC INTERACTION BETWEEN TWO END POSITIONS |
| DE4011217A1 (en) * | 1990-04-06 | 1991-10-10 | Lucas Ind Plc | Controlling magnetic-valve in antilocking braking system - ascertaining function of valve by tapping voltage of transistor setting current flow through solenoid |
| DE4308811A1 (en) * | 1992-07-21 | 1994-01-27 | Bosch Gmbh Robert | Diesel engine EM actuated fuel metering valve controller - has current sensor feeding back information to controller to determine on and off switching points of valve |
| WO1994013991A1 (en) * | 1992-12-08 | 1994-06-23 | Pi Research Ltd. | Electromagnetic valves |
| US20080148831A1 (en) * | 2006-10-27 | 2008-06-26 | Ford Motor Company | Methods and systems for testing electromagnetically actuated fuel injectors |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108141910A (en) * | 2015-10-02 | 2018-06-08 | Bsh家用电器有限公司 | Household appliance |
| CN107965395A (en) * | 2016-10-20 | 2018-04-27 | 三菱电机株式会社 | Injector control apparatus and injector control method |
| CN107965395B (en) * | 2016-10-20 | 2020-11-10 | 三菱电机株式会社 | Injector control device and injector control method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2443333B1 (en) | 2014-10-29 |
| DE102009026930A1 (en) | 2010-12-16 |
| EP2443333A1 (en) | 2012-04-25 |
| CN102803689B (en) | 2016-06-01 |
| WO2010145936A1 (en) | 2010-12-23 |
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