EP2652299A1 - Verfahren zum betreiben einer kraftstoffeinspritzanlage einer brennkraftmaschine - Google Patents
Verfahren zum betreiben einer kraftstoffeinspritzanlage einer brennkraftmaschineInfo
- Publication number
- EP2652299A1 EP2652299A1 EP11788127.6A EP11788127A EP2652299A1 EP 2652299 A1 EP2652299 A1 EP 2652299A1 EP 11788127 A EP11788127 A EP 11788127A EP 2652299 A1 EP2652299 A1 EP 2652299A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- time
- nozzle needle
- period
- determined
- function
- 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
- F02D41/30—Controlling fuel injection
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric injectors
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1429—Linearisation, i.e. using a feedback law such that the system evolves as a linear one
-
- 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
- F02D2041/2031—Control of the current by means of delays or monostable multivibrators
-
- 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
Definitions
- the invention relates to a method for operating a fuel injection system of an internal combustion engine according to the preamble of claim 1.
- Injectors for injecting fuel are well known.
- an actuator such as a solenoid or piezo actuator.
- the switching valve is connected to a nozzle needle in a hydraulic connection, wherein the nozzle needle in response to the state of the switching valve opens or closes the injector.
- Opening delay period of the nozzle needle an accurate determination of the amount of fuel injected by the injector.
- the opening delay period starts at a drive start timing which marks the start of drive of the actuator of the injector and ends with the opening timing of the nozzle needle.
- Opening delay time of the nozzle needle is advantageously determined in conjunction with a minimum drive time duration, wherein the minimum
- Activation time corresponds to the activation time for the actuator, at which the injector is not opening.
- the minimum drive time duration is determined from a function which links the drive time duration with a further time duration. This so according to more precisely determined injected
- Fuel quantity can in turn be included in further calculations. Overall, the process contributes to the control of the
- the method leads to the fact that fuel can be saved and pollutant emissions can be further reduced.
- the further period of time is a closing period of the nozzle needle, which begins at a closing time of the switching valve.
- the closing time of the switching valve corresponds to one
- the known closing time of the switching valve flows into the determination of the opening time of the nozzle needle with a.
- the further period of time is a closing delay period, which at a drive end time of
- Control of the actuator begins. For example, if the closing time of the switching valve is not available, it may be advantageous this known
- value pairs are determined from the activation time duration and the further time duration, ie the closing time duration or the closing delay time duration.
- the function is determined from the value pairs.
- Figure 1 is a schematic section through a piezo injector;
- Figure 2a shows a schematically illustrated switching valve in a start position;
- Figure 2b shows the switching valve shown schematically in a state
- Figure 3 is a timing diagram with a schematically illustrated
- Figure 4 is a timing diagram with a schematically illustrated
- FIG. 5 shows a schematically illustrated activation period
- FIG. 6 is a schematic flowchart
- Figure 7 is a schematic block diagram.
- the piezo injector 100 shown in Figure 1 is used for injection of fuel into a combustion chamber, not shown, of an internal combustion engine.
- Injector 100 is part of a fuel injection system of the internal combustion engine.
- this fuel injection system operates according to the so-called common rail method.
- the supply of fuel through the piezo injector 100 is controlled by a piezoelectric actuator 10, which is controlled via a control unit with an electrical voltage.
- the extension of the piezoactuator 10 changes in the longitudinal direction, i.
- the piezoelectric actuator 10 is connected via a hydraulic coupler 1 1 with a switching valve 12.
- the piezoelectric actuator 10 acts on the switching valve 12 with a lifting movement.
- About the switching valve 12 is the movement of a nozzle needle 14 in hydraulically
- the piezo injector 100 opens or closes and thus meters fuel into the combustion chamber.
- the piezo-injector 100 is opened by means of the nozzle needle 14 and closed again.
- the piezoelectric actuator 10, the hydraulic coupler 1 1 and the switching valve 12 are also below
- a solenoid actuator can be used to the switching valve 12 with a
- FIGS. 2a, 2b and 2c show schematically a hydraulic system which is filled with fuel.
- Switching valve 12 and the nozzle needle 14 of Figure 1 is used to control the movement of the nozzle needle 14 by means of the switching valve 12.
- the hydraulic system according to Figures 2a, 2b and 2c is not on the operation or operation by means of a piezo-actuator 10 according to limited Figure 1, but may alternatively also with said magnet actuator or a operated by another actuator type.
- a drain 15, an inlet 16, a Abgresraum 17, a valve chamber 18, a control chamber 19 and a pressure chamber 20 are shown.
- the valve chamber 18 is connected to the control chamber 19 via a connecting line 21.
- the connecting line 21 has an outlet throttle 22.
- the control chamber 19 is connected to the pressure chamber 20 via a
- the connecting line 23 has an inlet throttle 24.
- the Abschraum 17 of Figure 2a is a leakage oil pressure Pleak and in the pressure chamber 20 is a rail pressure Prail available.
- the piezo-injector 100 is in the starting state, wherein the
- Switching valve 12 is closed. Therefore prevails in the Abschraum 17 of the drain 15 determined leak pressure Pleak. In the rest of the system prevails over the inlet 16 rail pressure Prail.
- the piezo actuator 10 When the piezo actuator 10 is charged, it expands in the longitudinal direction.
- a corresponding control of the explained magnetic actuator or another actuator type leads to a corresponding force action on the switching valve 12 and so to a lifting movement of the switching valve 12. It is on the actuator chain 13, the switching valve 12 with a corresponding stroke
- the opening of the switching valve 12 thus results in the control chamber 19 to a pressure drop, which causes the nozzle needle 14 moves upward in the direction of movement r2.
- This direction of movement r2 of the nozzle needle 14 means opening of the piezo injector 100 for fuel injection.
- the piezoelectric actuator 10 is discharged and therefore decreases in the longitudinal direction.
- a corresponding activation of the explained magnetic actuator or another type of actuator leads to the end of the force acting on the switching valve 12 and thus to a
- the switching valve 12 is applied accordingly with a stroke and it moves in
- FIG. 3 shows a timing diagram 200 with a schematically illustrated
- Nozzle needle 14 The current profile 20 is associated with a current axis I, wherein on the current axis I, a first current value 11, a second current value 12 and a third current value 13 are plotted. The second current value 12 is greater than the first current value 11. The third current value 13 is greater than the second current value 12.
- the stroke profile 30 of the switching valve 12 is assigned to a valve stroke axis hS, wherein on the valve stroke axis hS a first valve stroke value hS1 and a second valve stroke value hS2 are applied. The second valve lift value hS2 is greater than the first valve lift value hS1.
- the stroke progression 40 of the nozzle needle 14 is assigned to a needle stroke axis hN, wherein a first needle stroke value hN1 and a second needle stroke value hN2 are plotted on the needle stroke axis hN.
- the second Nadelhubwert hN2 is greater than the first Nadelhubwert hN1.
- the current profile 20, the stroke profile 30 of the switching valve 12 and the stroke profile 40 of the nozzle needle 14 each relate to a common time axis t.
- the current waveform 20 is at the first current value 11.
- the current profile 20 rises from the first current value 11 via the second current value 12 to the third current value 13.
- the current profile 20 is at the third current value 13. Between the time t5 and a time t6 the current profile 20 drops from the third current value 13 to the second current value 12. Between the time t6 and a drive end time t7, the current profile 20 lingers at the second current value 12
- An confuseerstartzeittician tO and the An confuseendzeittician t7 define a An Kunststoffzeitdauer d ac tive-
- An Kunststoffzeitdauer dactive example instead of the An Kunststofferstartzeittician tO the time t1 be selected.
- the time t1 be selected.
- Activation time d ac tive instead of the An horrendzeitrelatess t7 the time t8 are selected.
- the definition of the activation period d ac tive thus generally corresponds to a period of time during which there is a certain energy state, characterized by current or voltage in an actuator, for example the magnetic actuator.
- the stroke curve 30 is at the first Ventilhubwert hS1. Between the opening time t2 and a time t3, the stroke profile 30 increases from the first valve lift value hS1 to the second valve lift value hS2. Between the time t3 and a time t9, the stroke course 30 is at the second valve lift value hS2. Between the time t9 and a closing time t10 of the switching valve 12, the stroke profile 30 drops from the second valve lift value hS2 to the first valve lift value hS1.
- a stroke profile 32 of the switching valve 12 is shown, wherein the stroke profile 32 increases to the middle of the interval between the closing time t10 and the time t11 from the first valve lift value hS1 and until the time t11 to the first valve lift value hS1 falls back.
- the stroke course 32 corresponds to a bouncing behavior of the switching valve 12, wherein the switching valve 12 meets at the closing time t10 and again at the time t1 1 to a stop.
- the stroke curve 30 is at the first Ventilhubwert hS1, which corresponds to the closed state of the switching valve 12 in Figure 2a.
- the stroke course 30 increases between the opening time t2 and the time t3 from the first valve lift value hS1 to the second valve lift value hS2, which corresponds to the opening of the switching valve 12 in the direction of movement r1 in FIG. 2b.
- the stroke profile 30 falls from the second valve lift value hS2 to the first valve lift value hS1, which in FIG. 2c corresponds to the closing of the switching valve 12 in FIG.
- Movement direction r3 corresponds. If the stroke course 30 is at the first valve stroke value hS1, then the switching valve 12 is closed. If the stroke course 30 is at the second valve lift value hS2, then the switching valve 12 is open.
- the stroke course 40 of the nozzle needle 14 is located between the
- Nadelhubwert hN1 wherein the stroke curve 40 decreases according to a substantially linear function.
- the stroke course 40 is at the first Nadelhubwert hN1.
- the first Nadelhubwert hN1 corresponds to a closed state of the injector 100, wherein the nozzle needle 14 closes the injector 100.
- the stroke profile 40 increases from the first needle stroke value hN1 to the second Nadelhubwert hN2, which corresponds to the opening of the nozzle needle 14 in the direction of movement r2 in Figure 2b.
- the stroke profile 40 drops from the second Nadelhubwert hN2 to the first Nadelhubwert hN1, which corresponds to the closing of the nozzle needle 14 in the direction of movement r4 in Figure 2c.
- a closing time period d C i 0S e of the nozzle needle 14 begins with the closing time t10 of the switching valve 12 and ends with the closing time t12 of the nozzle needle 14.
- a first closing delay period d c i starts with the
- Closing delay time d c i are generally also referred to as a further time duration.
- a second closing delay period d C 2 starts at the drive end time t 7 and ends at the closing time t 10 of the switching valve 12
- Opening period d ope n of the nozzle needle 14 begins with the opening time t4 of the nozzle needle 14 and ends with the closing time t10 of the switching valve 12.
- An opening delay period d 0 i begins with the An putstartzeittician tO and ends with the opening time t4 of the nozzle needle 14th
- the opening time t2 is associated with opening of the switching valve 12.
- the opening time t4 is associated with opening of the nozzle needle 14.
- Closing time t10 is associated with closing the switching valve 12.
- the closing time t12 is associated with a closing of the nozzle needle 14.
- FIG. 4 shows a timing diagram 202 with a schematically illustrated one
- the voltage curve 70 is associated with a voltage axis U, wherein on the
- Voltage axis U a first voltage value IM and a second
- Voltage value U2 are plotted.
- the second voltage value U2 is greater than the first voltage value U1.
- the stroke course 30 of the switching valve 12 and the stroke curve 40 of the nozzle needle 14 correspond to the courses of the
- the voltage curve 70 rises from the first voltage value IM to the second time t1
- the voltage curve 70 is at the second voltage value U2. Between the time t7 and time t8, the voltage curve 70 drops from the second voltage value U2 to the first voltage value IM.
- the stroke curve 30 is at the first Ventilhubwert hS1, which corresponds to the closed state of the switching valve 12 in Figure 2a.
- the stroke course 30 increases between the opening time t2 and the time t3 from the first valve lift value hS1 to the second valve lift value hS2, which corresponds to the opening of the switching valve 12 in the direction of movement r1 in FIG. 2b.
- the stroke profile 30 falls from the second valve lift value hS2 to the first valve lift value hS1, which in FIG. 2c corresponds to the closing of the switching valve 12 in FIG. 2c
- Movement direction r3 corresponds. If the stroke course 30 is at the first valve stroke value hS1, then the switching valve 12 is closed. If the stroke course 30 is at the second valve lift value hS2, then the switching valve 12 is open.
- FIG. 5 shows a schematically depicted drive time-Verzugszeitdauer- diagram 45 having a d ac tive axis for the drive time d ac tive and a direction orthogonal to dacti e d axis C
- the function f forms the closing time duration d C i 0S e of the nozzle needle 14 to the activation period d ac tive or the activation period d ac tive to the
- the function f is therefore a substantially linear function.
- the function f is formed starting from a plurality of measuring points M x , wherein a measuring point M ⁇ M x is in each case a value of
- the function f can be determined, for example, with the method of linear regression.
- 0S e -axis intersect at the point d C
- the function f intersects the d-axis ac tive at the slightest
- the function f intersects the d C
- the linear form of the function f can be represented according to formula 1, where ⁇ corresponds to a determinable factor.
- the linear form of the function f can also be represented in the form according to the formula 2, where m is the line slope and d C
- the first closing delay time d c i can be mapped to the activation time d ac tive or the activation time d ac tive to the first closing delay time d c i according to a further function and used accordingly.
- the linear function f shown in FIG. 5 other functions, for example higher ones, can also be used
- Close closing time d c i serve.
- the determination of the opening time t4 of the nozzle needle 14 will be explained below with reference to FIGS. 3 and 4. It is believed that the nozzle needle 14 opens at a substantially constant velocity v op en and with a substantially constant velocity v C
- 0S e vary slightly depending on the rail pressure rai
- an equation can be set up according to the formula 4, where ß represents a corresponding factor.
- Opening period d ope n, with respect to the function f compensated is also possible to set the offset d 0 ff to 0.
- the opening delay time d 0 i nozzle needle 14 results from the additive combination of the smallest activation time d ac tive, min , the second closing delay time d C 2 (d a ctive, min) and optionally the offset d 0 ff.
- the opening delay time d 0 i is determined as a function of the smallest drive time d ac ti V e, min.
- the opening delay period d 0 i starts at the drive start time t 0 and ends with the opening time t 4 of the nozzle needle 14.
- the sum of the activation period d ac tive and the closing delay period d c 2 can be plotted.
- 0S e is then alternatively determined according to formula 7 and applies to the opening delay period d 0 i then formula 8. If the closing delay time d C 2 is not known, then an assumed substitute value can be expected.
- the value pairs ML ⁇ are determined, which each assign a value of a [d ac ti V e + dc 2] axis to a value of the dciose axis.
- the value pairs M x are set, on the one hand, of the sum of the activation period d ac tive and the second closing delay period d C 2 and, on the other hand, of the closing period d C
- the function f is determined from the above value pairs M ⁇ M x .
- a smallest sum [dactive + d C 2] min- is determined analogously to the smallest activation period d ac tive, min and results from the intersection of the alternatively determined function f with the
- Opening delay time d 0 i can be per opening cycle, the opening period d ope n of the nozzle needle 14 and thus the total time d ope n + d C
- FIG. 6 shows a schematic flowchart 50 with the blocks 52 and 54.
- the block 52 is connected to the next block 54 with an arrow 55. From the block 54, an optional connection according to the arrow 56 leads to the block 52.
- measuring points M ⁇ M x are collected. If there is a sufficient number of measuring points M x M x , the function f is determined in block 54.
- the function f is present after the execution of the block 54, for example in a formula according to the formulas 6 or 8.
- further measurement points M x M x can be determined in block 52 in order to determine the function f again or to update the function f.
- Figure 7 shows a schematic block diagram 60 with the block 62.
- the block 62 are the drive time d ac tive as well as the closing time period d C
- the block 62 still additionally
- the block 62 determines the opening delay time d 0 i as a function of the supplied signals / values. As an alternative to the supply of the signals / values shown, the block 62 may be supplied, for example, with the function f or an ascertainable time t0 to t12.
- Flowchart 50 may be part of block 62.
- the methods described above can be represented as a computer program for a digital computing device.
- the digital computing device is suitable for carrying out the methods described above as a computer program.
- the internal combustion engine in particular for a motor vehicle, comprises a control device, which in particular has a digital computing device
- the control device comprises a storage medium on which the computer program is stored.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010063099A DE102010063099A1 (de) | 2010-12-15 | 2010-12-15 | Verfahren zum Betreiben einer Kraftstoffeinspitzanlage einer Brennkraftmaschine |
| PCT/EP2011/070784 WO2012079933A1 (de) | 2010-12-15 | 2011-11-23 | Verfahren zum betreiben einer kraftstoffeinspritzanlage einer brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2652299A1 true EP2652299A1 (de) | 2013-10-23 |
| EP2652299B1 EP2652299B1 (de) | 2017-08-23 |
Family
ID=45044576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11788127.6A Active EP2652299B1 (de) | 2010-12-15 | 2011-11-23 | Verfahren zum betreiben einer kraftstoffeinspritzanlage einer brennkraftmaschine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9206758B2 (de) |
| EP (1) | EP2652299B1 (de) |
| KR (1) | KR20140033320A (de) |
| CN (1) | CN103237976B (de) |
| BR (1) | BR112013014657A2 (de) |
| DE (1) | DE102010063099A1 (de) |
| WO (1) | WO2012079933A1 (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009027311A1 (de) * | 2009-06-30 | 2011-01-05 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
| DE102014222556A1 (de) | 2014-11-05 | 2016-05-12 | Robert Bosch Gmbh | Verfahren zur Regelung einer Einspritzdauer eines Injektors in einer Brennkraftmaschine |
| US9683513B2 (en) * | 2014-12-01 | 2017-06-20 | Ford Global Technologies, Llc | Methods and systems for learning variability of a direct fuel injector |
| US10087866B2 (en) | 2015-08-31 | 2018-10-02 | Infineon Technologies Ag | Detecting fuel injector timing with current sensing |
| DE102016200743A1 (de) * | 2016-01-20 | 2017-07-20 | Robert Bosch Gmbh | Verfahren zur Bestimmung einer Öffnungsverzugsdauer eines Kraftstoffinjektors |
| DE102016207629B3 (de) * | 2016-05-03 | 2017-05-11 | Continental Automotive Gmbh | Identifikation von Kraftstoffinjektoren mit ähnlichem Bewegungsverhalten |
| JP6356754B2 (ja) | 2016-09-13 | 2018-07-11 | 本田技研工業株式会社 | 内燃機関の制御装置 |
| US11266344B2 (en) | 2016-09-21 | 2022-03-08 | Samsung Electronics Co., Ltd. | Method for measuring skin condition and electronic device therefor |
| JP6289579B1 (ja) * | 2016-10-20 | 2018-03-07 | 三菱電機株式会社 | インジェクタ制御装置及びインジェクタ制御方法 |
| DE102017204477B4 (de) | 2017-03-17 | 2018-10-11 | Continental Automotive Gmbh | Verfahren und Motorsteuerung zum Gleichstellen des zeitlichen Öffnungsverhaltens von Kraftstoffinjektoren |
| GB2567809B (en) * | 2017-10-18 | 2020-04-01 | Delphi Tech Ip Ltd | Method to determine the needle opening delay of a fuel injector |
| JP7363590B2 (ja) * | 2020-03-05 | 2023-10-18 | 株式会社デンソー | 噴射制御装置 |
| DE102020213705A1 (de) | 2020-10-30 | 2022-05-05 | Volkswagen Aktiengesellschaft | Verfahren zum Ermitteln eines Öffnungszeitpunkts eines Injektors mit einem Magnetventil, Computerprogramm, Steuergerät, Verbrennungskraftmaschine und Kraftfahrzeug |
| GB2603799B (en) * | 2021-02-15 | 2023-06-07 | Delphi Tech Ip Ltd | Method of determining the opening delay of a fuel injector |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3609599A1 (de) | 1986-03-21 | 1987-09-24 | Bosch Gmbh Robert | Verfahren zur steuerung der entregungszeit von elektromagnetischen einrichtungen, insbesondere von elektromagnetischen ventilen bei brennkraftmaschinen |
| DE3843138A1 (de) | 1988-12-22 | 1990-06-28 | Bosch Gmbh Robert | Verfahren zur steuerung und erfassung der bewegung eines ankers eines elektromagnetischen schaltorgans |
| DE19607073A1 (de) * | 1996-02-24 | 1997-08-28 | Bosch Gmbh Robert | Verfahren zur Steuerung der Bewegung eines Ankers eines elektromagnetischen Schaltorgans |
| JP4148134B2 (ja) | 2003-12-19 | 2008-09-10 | 株式会社デンソー | 燃料噴射装置 |
| DE102004020937B4 (de) | 2004-04-28 | 2010-07-15 | Continental Automotive Gmbh | Verfahren zum Bestimmen einer Schließzeit eines Schließgliedes und Schaltungsanordnung |
| DE102004027291B4 (de) | 2004-06-04 | 2009-11-26 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Steuern eines Ventils |
| JP4784592B2 (ja) | 2007-12-06 | 2011-10-05 | 株式会社デンソー | 燃料噴射制御装置、および燃料噴射弁の噴射特性調整方法 |
| DE102008054513A1 (de) | 2008-12-11 | 2010-06-17 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Kraftstoffeinspritzsystems einer Brennkraftmaschine |
| IT1399311B1 (it) * | 2010-04-07 | 2013-04-16 | Magneti Marelli Spa | Metodo per determinare l'istante di chiusura di un iniettore elettromagnetico di carburante |
| DE102011003751B4 (de) * | 2011-02-08 | 2021-06-10 | Vitesco Technologies GmbH | Einspritzvorrichtung |
-
2010
- 2010-12-15 DE DE102010063099A patent/DE102010063099A1/de not_active Ceased
-
2011
- 2011-11-23 BR BR112013014657A patent/BR112013014657A2/pt not_active IP Right Cessation
- 2011-11-23 US US13/994,415 patent/US9206758B2/en active Active
- 2011-11-23 EP EP11788127.6A patent/EP2652299B1/de active Active
- 2011-11-23 CN CN201180060324.9A patent/CN103237976B/zh active Active
- 2011-11-23 WO PCT/EP2011/070784 patent/WO2012079933A1/de not_active Ceased
- 2011-11-23 KR KR1020137018229A patent/KR20140033320A/ko not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012079933A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012079933A1 (de) | 2012-06-21 |
| US9206758B2 (en) | 2015-12-08 |
| KR20140033320A (ko) | 2014-03-18 |
| EP2652299B1 (de) | 2017-08-23 |
| BR112013014657A2 (pt) | 2016-09-27 |
| CN103237976B (zh) | 2016-08-10 |
| DE102010063099A1 (de) | 2012-06-21 |
| US20130312709A1 (en) | 2013-11-28 |
| CN103237976A (zh) | 2013-08-07 |
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