EP1167729A1 - Piezoelektrischer Aktor eines Einspritzventils - Google Patents
Piezoelektrischer Aktor eines Einspritzventils Download PDFInfo
- Publication number
- EP1167729A1 EP1167729A1 EP00113992A EP00113992A EP1167729A1 EP 1167729 A1 EP1167729 A1 EP 1167729A1 EP 00113992 A EP00113992 A EP 00113992A EP 00113992 A EP00113992 A EP 00113992A EP 1167729 A1 EP1167729 A1 EP 1167729A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- terminal voltage
- actuator
- voltage
- coupler
- fuel injection
- 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
- 238000002347 injection Methods 0.000 claims abstract description 61
- 239000007924 injection Substances 0.000 claims abstract description 61
- 239000000446 fuel Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 9
- 230000002123 temporal effect Effects 0.000 claims description 6
- 238000013500 data storage Methods 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 abstract description 5
- 238000011017 operating method Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static 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
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
Definitions
- the invention relates to a method for operating a Fuel injector, in which a piezoelectric actuator via a hydraulic coupler Closing member drives. It continues to refer to Fuel injection system with a number of such Injectors.
- An essential component can be in a Internal combustion engine for introducing the fuel into the combustion chambers of the cylinders have a fuel injection system are used.
- a fuel injection system typically includes a number of injectors that individually or in the manner of a so-called common rail system (CR-Systems) via a central Supply system can be fueled.
- CR-Systems common rail system
- each injector is typically in an associated injector integrated, via the fuel injection in a predeterminable manner is adjustable.
- the injectors can be used for an electrical Control can be provided with a piezoelectric actuator.
- Such an injector for the Fuel injection into the combustion chamber Internal combustion engine with a high pressure system or CR system is known from DE 197 328 02.
- This injector is designed in a double-switching manner and has a Locking member on, which is in one of two alternatives Valve seats are each in a closed position and thereby closing the injection nozzle. In a This takes the middle position between the two valve seats Locking member, however, an open position.
- a piezoelectric actuator drivable.
- the piezoelectric Actuator charged to a control voltage by the pressure in the Common rail system is dependent. Due to the The control voltage expands in the longitudinal direction. This linear expansion is done using a hydraulic coupler transferred to the closure member, so that on the one hand the stroke generated by the actuator is amplified and on the other hand that Closure member of a possible static Thermal expansion of the actuator is decoupled.
- a charge of the piezoelectric actuator thus causes the hydraulic coupler a transfer of the closing member first from the first closed position to the Open position and then from the open position to the second closed position.
- discharging the piezoelectric actuator due to the associated Longitudinal contraction using the hydraulic coupler a transfer of the closure member initially from the second closed position in the open position and then from the open position to the first closed position.
- the invention is therefore based on the object Method for operating a fuel injection system with a number of injectors, each with a piezoelectric actuator via a hydraulic coupler Closing member drives to indicate with which one particularly reliable fuel injection is guaranteed. moreover is said to be particularly useful for performing the procedure suitable fuel injection system can be specified.
- this object is achieved according to the invention solved by its after a charging process of an actuator Terminal voltage monitored and to form a Diagnostic statement for the respective injection valve is used.
- the invention is based on the consideration that Fuel injection system in terms of Fuel injection operated particularly reliably can be done by direct and timely monitoring of the Valve strokes of the injection valves is made. This will promptly, i.e. during or immediately after current injection cycle, one for each injection valve Diagnostic statement made regarding its valve lift. How has surprisingly been found to be suitable parameters, on the basis of which the Diagnostic statement is formed, the temporal development of the Terminal voltage of the respective actuator can be provided.
- the loading phase it builds in the hydraulic Coupler a pressure on that even after the termination of the Charges back on the piezoelectric actuator and in this one with a separate power supply for the Pressure conditions in the coupler and therefore also for the Implementation of the control voltage in valve lift characteristic piezo voltage generated.
- the Terminal voltage at the piezoelectric actuator can therefore be without the requirement of an additional sensor as a measurement parameter for the valve behavior with regard to the implementation of the Control voltage can be used in valve lift.
- the monitored terminal voltage is advantageously used Formation of a diagnostic statement about the fill level of the Coupler of the respective injection valve used.
- the Coupler pressure for its part is unchanged further external conditions - depending on the im Medium located coupler; in particular one results only partial filling of the coupler with fuel (effective medium: fuel-air mixture) in others Pressure ratios as a complete filling of the Coupler with fuel as a medium. So that's for them Characteristic pressure ratios in the coupler Terminal voltage particularly favorable for the Level monitoring can be used.
- a particularly reliable diagnostic statement is included achievable by this advantageously using the temporal drop in terminal voltage after termination of Charging process is formed.
- the pressure builds up for the piezoelectric actuator in the hydraulic coupler due to the outflowing medium from; this pressure drop is about monitoring the Terminal voltage on the actuator in the form of a function of Evidence of voltage reduction occurring over time.
- This Stress reduction depends to a particularly pronounced degree on the degree of filling in the coupler: with a fully filled coupler is a comparatively pronounced voltage drop detectable. In contrast, this effect is only partial filled coupler significantly lower because in this case only air or an air-fuel mixture when charging was compressed.
- the diagnostic statement is expediently based on this a comparison of the difference from a first measured value for the terminal voltage immediately after the termination Charging process and a second measured value for the Terminal voltage after a waiting period with a Limit formed.
- a fixed one can be used for the waiting time Value of approximately 0.25 ms can advantageously be predetermined.
- the waiting time can also depend on parameters characteristic of the injection cycle such as for example the activation period or the duration of a Spray pause between two injections can be selected.
- the waiting time can be chosen such that the second reading immediately before a subsequent one Control intervention, for example an increase in Control voltage is determined.
- the Limit based on characteristic Operating characteristics of the respective coupler suitable selected, in particular a voltage value as the limit value can be specified from about 25 to 30 V. Alternatively, you can the limit value also from a central control unit be specified depending on the operating point, where advantageously one from a previous calibration measurement obtained map is used as a basis.
- the diagnostic statement is advantageously made immediately for a corrective intervention in the fuel injection system used. This is particularly true when a a simple error based on the diagnostic message a setpoint for the control voltage of the respective actuator for one subsequent injection cycle specified, the setpoint is chosen in such a way that, in spite of the determined sufficient filling of the coupler after activation of the provided valve lift results.
- the advantages achieved with the invention exist especially in that by evaluating the Terminal voltage in a simple way and without additional constructive effort a timely and reliable Diagnostics and functional monitoring of each one Injector is enabled.
- the Fuel injection system can therefore be particularly reliable be operated, with minor deviations corrective measures immediately, for example with regard to a Tracking of the control voltage for each actuator, can be made.
- the injection valve 1 according to FIG. 1 has one piezoelectric actuator 2, which has a number of Piezo elements 4 connected in series comprises.
- the Actuator 2 is on the one hand with a housing wall 6 through which Terminals 7 of the actuator 2 are passed, and on the other hand with a control piston 8 non-positively connected.
- the actuating piston 8 closes with its actuator 2 end face 9 facing away from a hydraulic coupler 10.
- the hydraulic coupler 10 in turn acts on one in a connecting channel 12 guided adjusting piston 14 whose end facing away from the coupler 10 is a closing member 16 is arranged.
- This is as a double closing Control valve designed. It closes in a first Closed position, which is a rest position of the actuator 2 corresponds to a first valve seat 18 of a valve chamber 20. In a second closed position, that of a maximum Activation of the actuator 2 corresponds to that closes Closing member 16, however, a second valve seat 22 of the Valve chamber 20.
- Valve chamber 20 Via a passage in the second valve seat 22 is the Valve chamber 20 connected to a guide channel 24, the not on the input side via a connector 26 to one shown pressure channel of a common rail fuel supply system a motor vehicle connected.
- guide channel 24 In the guide channel 24 is a nozzle needle 28 arranged that a fuel outlet 30 one of Connection piece 26 branching fuel channel 32 dependent from one via the connecting terminals 7 to the actuator 2 applied control voltage Ua releases or closes.
- the connector 26 For setting functional pressure conditions at Operation of the injector 1 are the connector 26 with an inlet throttle 34 and the guide channel 24 with a Flow restrictor 36 provided.
- the injection valve 1 is, together with others Injectors 1, part of a fuel injection system 40, as shown schematically in Figure 2. there are the injection valves 1, of which in Figure 2 the For the sake of clarity, only four are shown, on the fuel side to a common supply line 42 connected. The number of for that Fuel injection system 40 provided injectors depends on the other requirements of the supplying internal combustion engine, in particular can Injector 1 for each cylinder to be fed be provided.
- a central Control unit 44 For electrical control of the injection valves 1 includes the fuel supply system 40 a central Control unit 44. This in turn has a control module 46 on that via lines 48 to the terminals 7 of the Injector 1 is connected to be switched off.
- the control unit 44 includes a diagnostic unit 50 which is on a number assigned to each of the injection valves 1 and connected to their terminals 7 Voltage measuring devices 52 is connected. Also points the control unit 44 has a data storage module 54.
- the Control unit 44 When operating the fuel supply system 40, the Control unit 44 in an injection cycle over the Control module 46 a control voltage Ua to the Terminals 7 of each injector 1. In Depending on this control voltage Ua, the Actuator 2 of the controlled injection valve 1 in its Longitudinal direction, so that the adjusting piston 8 in the direction of the hydraulic coupler 10 moves. As a result of this caused pressure increase in the coupler 10 also moves Adjusting piston 14 with the closure member 16 arranged thereon towards the second valve seat 22.
- each injector 26 has a high pressure at one Common rail system, for example, between 200 and 1800 bar can be. This pressure acts against the nozzle needle 28 and keeps it closed so that through the fuel spout 30 no fuel can leak. But if now as a result of the control voltage Ua applied to the actuator 2 Closing member 16 from the first valve seat 18 to the second Valve seat 22 or vice versa, then builds Pressure in the high pressure area of the guide channel 24, so that the nozzle needle 28 in the direction of the valve chamber 20 backs away and releases the fuel outlet 30. In in this case, fuel is injected into the assigned cylinder.
- Fuel injection system 40 designed such that a direct and timely monitoring of all couplers 10 Injector 1 is made. This will be prompt, so still during or immediately after the current one Injection cycle, one for each injector 1 Diagnostic statement regarding the respective hydraulic Coupler 10 formed.
- the monitoring of the terminal voltage Uk on the actuator 2 becomes thus in the diagnostic unit 50 for the respective Injection valve 1 makes a diagnostic statement in the following way formed: after the charging phase of the actuator 2, the Terminal voltage Uk measured. After a wait of For example, the terminal voltage Uk becomes about 0.25 ms measured again. Then the difference between the two measured values formed and compared with a limit. in the The exemplary embodiment is a fixed limit value of approximately Specified 30 V; alternatively, a operating point dependent limit from a previous one Calibration obtained, stored in the data storage module 54 Map to be used as a basis.
- the waiting time is there chosen such that the measurement of the terminal voltage Uk immediately before a subsequent tax intervention, namely before a further increase in the clamping voltage Uk, he follows.
- the difference between the terminal voltages Uk is greater than the limit value, the diagnosis is based on a proper refill of the coupler 10 closed; no further action is taken.
- the determined difference in terminal voltages is Uk less than the limit value, the diagnosis is based on a inadequate refilling of the coupler 10 closed.
- another comparison of the difference of Terminal voltages Uk with a second limit or Minimum value made.
- This comparison will still a distinction according to the effects of the error made: falls below the difference of Terminal voltages Uk also the second, even lower Limit value or minimum value, so a "fatal error" diagnosed, for example, an immediate shutdown of the internal combustion engine triggers.
- the difference of the Terminal voltages Uk are below the first, but above the second limit, it becomes a simple one Diagnosed an error that continued operation of the Internal combustion engine allowed, but for later Diagnostic purposes is stored in the data storage module 54.
- the Diagnostic unit 50 If a simple error is found in the Diagnostic unit 50 also becomes a setpoint for the Control voltage Ua of the respective actuator 2 for one subsequent injection cycle specified, the setpoint is chosen in such a way that, in spite of the determined sufficient filling of the coupler 10 after one Control of the intended valve lift results.
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
- Figur 1
- ein Einspritzventil eines Kraftstoffeinspritzsystems,
- Figur 2
- schematisch ein Kraftstoffeinspritzsystem mit einer Anzahl von Einspritzventilen nach Figur 1, und
- Figuren 3a und 3b
- jeweils ein Zeitdiagramm für eine Klemmenspannung.
Claims (10)
- Verfahren zum Betreiben eines Kraftstoffeinspritzsystems (40) mit einer Anzahl von Einspritzventilen (1), bei denen jeweils ein piezoelektrischer Aktor (2) über einen hydraulischen Koppler (10) ein Verschließglied (16) treibt, wobei nach einem Aufladevorgang eines Aktors (2) dessen Klemmenspannung (Uk) überwacht und zur Bildung einer Diagnoseaussage für das jeweilige Einspritzventil (1) herangezogen wird.
- Verfahren nach Anspruch 1, bei dem die Diagnoseaussage anhand des zeitlichen Abfalls der Klemmenspannung (Uk) nach Beendigung des Aufladevorgangs gebildet wird.
- Verfahren nach Anspruch 1 oder 2, bei dem anhand der überwachten Klemmenspannung (Uk) eine Diagnoseaussage über den Füllstand des Kopplers (10) des jeweiligen Einspritzventils (1) gebildet wird.
- Verfahren nach Anspruch 3, bei dem die Differenz zwischen der unmittelbar nach Beendigung des Aufladevorgangs gemessenen Klemmenspannung (Uk) und der nach Ablauf einer vorgebbaren Wartezeit gemessenen Klemmenspannung (Uk) mit einem Grenzwert verglichen wird.
- Verfahren nach Anspruch 4, bei dem in Abhängigkeit von der Differenz zwischen der unmittelbar nach Beendigung des Aufladevorgangs gemessenen Klemmenspannung (Uk) und der nach Ablauf einer vorgebbaren Wartezeit gemessenen Klemmenspannung (Uk) ein Sollwert für die Ansteuerspannung (Ua) des jeweiligen Aktors (2) für einen nachfolgenden Einspritzzyklus vorgegeben wird.
- Verfahren nach Anspruch 4 oder 5, bei dem als Wartezeit eine Zeit von etwa 0,25 ms, gerechnet von der Beendigung des Aufladevorgangs an, gewählt wird.
- Verfahren nach einem der Ansprüche 4 bis 6, bei dem als Grenzwert ein fester Spannungswert von etwa 25 bis 30 V vorgegeben wird.
- Verfahren nach einem der Ansprüche 4 bis 6, bei dem als Grenzwert ein betriebspunktabhängiger Spannungswert vorgegeben wird, der aus einem anhand einer vorherigen Eichung ermittelten Kennfeld abgeleitet wird.
- Kraftstoffeinspritzsystem (40) mit einer Anzahl von Einspritzventilen (1), bei denen jeweils ein piezoelektrischer Aktor (2) über einen hydraulischen Koppler (10) ein Verschließglied (16) treibt, wobei der Aktor (2) jedes Einspritzventils (1) mit einer zugeordneten Spannungsmeßeinrichtung (52) verbunden ist, die ihrerseits ausgangsseitig an eine Diagnoseeinheit (50) angeschlossen ist.
- Kraftstoffeinspritzsystem (40) nach Anspruch 9, dessen Diagnoseeinheit (50) mit einem Datenspeichermodul (54) verbunden ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50009866T DE50009866D1 (de) | 2000-07-01 | 2000-07-01 | Piezoelektrischer Aktor eines Einspritzventils |
EP00113992A EP1167729B2 (de) | 2000-07-01 | 2000-07-01 | Piezoelektrischer Aktor eines Einspritzventils |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00113992A EP1167729B2 (de) | 2000-07-01 | 2000-07-01 | Piezoelektrischer Aktor eines Einspritzventils |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1167729A1 true EP1167729A1 (de) | 2002-01-02 |
EP1167729B1 EP1167729B1 (de) | 2005-03-23 |
EP1167729B2 EP1167729B2 (de) | 2009-09-09 |
Family
ID=8169130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00113992A Expired - Lifetime EP1167729B2 (de) | 2000-07-01 | 2000-07-01 | Piezoelektrischer Aktor eines Einspritzventils |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1167729B2 (de) |
DE (1) | DE50009866D1 (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1394397A2 (de) | 2002-08-29 | 2004-03-03 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Kraftstoffeinspritzsystems, sowie Steuer- und/oder Regelgerät zum Betreiben eines Kraftstoffeinspritzsystems |
WO2005045234A1 (de) * | 2003-10-24 | 2005-05-19 | Robert Bosch Gmbh | Verfahren zur diagnose einer kraftstoff-einspritzvorrichtung, welche einen piezoaktor aufweist |
WO2005080776A1 (de) * | 2004-02-18 | 2005-09-01 | Robert Bosch Gmbh | Verfahren und vorrichtung zum bestimmen der ladeflanken eines piezoelektrischen aktors |
EP1505288A3 (de) * | 2003-08-08 | 2006-08-23 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Funktionsdiagnose eines Piezoaktors eines Kraftstoffzumesssystems einer Brennkraftmaschine |
EP1746318A1 (de) * | 2005-07-22 | 2007-01-24 | Delphi Technologies, Inc. | Verfahren und Vorrichtung zum Überwachen und Beurteilen der Funktion eines piezoelektrischen Aktors |
EP1752642A1 (de) * | 2005-08-04 | 2007-02-14 | Delphi Technologies, Inc. | Verfahren und Vorrichtung zum Überwachen und Beurteilen der Funktion eines piezoelektrischen Aktors |
EP1860312A1 (de) * | 2006-05-23 | 2007-11-28 | Delphi Technologies, Inc. | Verfahren zum Betrieb einer Kraftstoffeinspritzdüse |
WO2009149987A1 (de) * | 2008-06-10 | 2009-12-17 | Continental Automotive Gmbh | Verfahren zur einspritzmengenabweichungsdetektion und zur korrektur einer einspritzmenge sowie einspritzsystem |
WO2016177498A1 (de) * | 2015-05-06 | 2016-11-10 | Continental Automotive Gmbh | Überwachungsverfahren und überwachungsvorrichtung zur überwachung eines füllvorgangs einer injektoranordnung mit einem kraftstoff und befüllungsverfahren zum befüllen einer injektoranordnung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2574229A (en) | 2018-05-31 | 2019-12-04 | Fas Medic Sa | Method and apparatus for energising a solenoid of a valve assembly |
Citations (4)
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DE19711903A1 (de) * | 1997-03-21 | 1998-09-24 | Siemens Ag | Vorrichtung und Verfahren zum Ansteuern eines piezogesteuerten Kraftstoffeinspritzventils |
DE19732802A1 (de) | 1997-07-30 | 1999-02-04 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
DE19733560A1 (de) * | 1997-08-02 | 1999-02-04 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Laden und Entladen eines piezoelektrischen Elements |
DE19804196A1 (de) * | 1998-02-03 | 1999-08-12 | Siemens Ag | Verfahren zur Auswertung von Kennwerten piezo-mechanischer Systeme |
Family Cites Families (3)
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JP2707804B2 (ja) † | 1990-06-18 | 1998-02-04 | トヨタ自動車株式会社 | 圧電素子の駆動装置 |
CN1290206C (zh) * | 1998-06-25 | 2006-12-13 | 西门子公司 | 控制容性执行机构的方法和装置 |
US6420817B1 (en) † | 2000-02-11 | 2002-07-16 | Delphi Technologies, Inc. | Method for detecting injection events in a piezoelectric actuated fuel injector |
-
2000
- 2000-07-01 DE DE50009866T patent/DE50009866D1/de not_active Expired - Lifetime
- 2000-07-01 EP EP00113992A patent/EP1167729B2/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19711903A1 (de) * | 1997-03-21 | 1998-09-24 | Siemens Ag | Vorrichtung und Verfahren zum Ansteuern eines piezogesteuerten Kraftstoffeinspritzventils |
DE19732802A1 (de) | 1997-07-30 | 1999-02-04 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
DE19733560A1 (de) * | 1997-08-02 | 1999-02-04 | Bosch Gmbh Robert | Verfahren und Vorrichtung zum Laden und Entladen eines piezoelektrischen Elements |
DE19804196A1 (de) * | 1998-02-03 | 1999-08-12 | Siemens Ag | Verfahren zur Auswertung von Kennwerten piezo-mechanischer Systeme |
Non-Patent Citations (1)
Title |
---|
RUMPHORST M: "EIN NEUES ELEKTRONISCHES HOCHDRUCK-EINSPRITZSYSTEM FUR DIESELMOTOREN A NEW ELECTRONIC HIGH PRESSURE INJECTION SYSTEM", MTZ MOTORTECHNISCHE ZEITSCHRIFT,DE,FRANCKH'SCHE VERLAGSHANDLUNG,ABTEILUNG TECHNIK. STUTTGART, vol. 56, no. 3, 1 March 1995 (1995-03-01), pages 142 - 148, XP000490673, ISSN: 0024-8525 * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1394397A2 (de) | 2002-08-29 | 2004-03-03 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Kraftstoffeinspritzsystems, sowie Steuer- und/oder Regelgerät zum Betreiben eines Kraftstoffeinspritzsystems |
EP1394397A3 (de) * | 2002-08-29 | 2009-12-09 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Kraftstoffeinspritzsystems, sowie Steuer- und/oder Regelgerät zum Betreiben eines Kraftstoffeinspritzsystems |
EP1505288A3 (de) * | 2003-08-08 | 2006-08-23 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Funktionsdiagnose eines Piezoaktors eines Kraftstoffzumesssystems einer Brennkraftmaschine |
CN1581667B (zh) * | 2003-08-08 | 2011-04-06 | 罗伯特—博希股份公司 | 内燃机燃油计量系的压电致动器的功能诊断方法和装置 |
WO2005045234A1 (de) * | 2003-10-24 | 2005-05-19 | Robert Bosch Gmbh | Verfahren zur diagnose einer kraftstoff-einspritzvorrichtung, welche einen piezoaktor aufweist |
US7467543B2 (en) | 2003-10-24 | 2008-12-23 | Robert Bosch Gmbh | Method for diagnosis in a fuel injection device comprising a piezoactuator |
CN1922397B (zh) * | 2004-02-18 | 2010-09-08 | 罗伯特·博世有限公司 | 用于确定一种压电致动器的充电边界的方法和装置 |
WO2005080776A1 (de) * | 2004-02-18 | 2005-09-01 | Robert Bosch Gmbh | Verfahren und vorrichtung zum bestimmen der ladeflanken eines piezoelektrischen aktors |
EP1746318A1 (de) * | 2005-07-22 | 2007-01-24 | Delphi Technologies, Inc. | Verfahren und Vorrichtung zum Überwachen und Beurteilen der Funktion eines piezoelektrischen Aktors |
EP1752642A1 (de) * | 2005-08-04 | 2007-02-14 | Delphi Technologies, Inc. | Verfahren und Vorrichtung zum Überwachen und Beurteilen der Funktion eines piezoelektrischen Aktors |
EP1860312A1 (de) * | 2006-05-23 | 2007-11-28 | Delphi Technologies, Inc. | Verfahren zum Betrieb einer Kraftstoffeinspritzdüse |
WO2009149987A1 (de) * | 2008-06-10 | 2009-12-17 | Continental Automotive Gmbh | Verfahren zur einspritzmengenabweichungsdetektion und zur korrektur einer einspritzmenge sowie einspritzsystem |
US8631785B2 (en) | 2008-06-10 | 2014-01-21 | Continental Automotive Gmbh | Method for detecting deviations of injection quantities and for correcting the injection quantity, and injection system |
WO2016177498A1 (de) * | 2015-05-06 | 2016-11-10 | Continental Automotive Gmbh | Überwachungsverfahren und überwachungsvorrichtung zur überwachung eines füllvorgangs einer injektoranordnung mit einem kraftstoff und befüllungsverfahren zum befüllen einer injektoranordnung |
DE102015208436B4 (de) | 2015-05-06 | 2019-09-05 | Continental Automotive Gmbh | Überwachungsverfahren und Überwachungsvorrichtung zur Überwachung eines Füllvorgangs einer Injektoranordnung mit einem Kraftstoff und Befüllungsverfahren zum Befüllen einer Injektoranordnung |
Also Published As
Publication number | Publication date |
---|---|
EP1167729B2 (de) | 2009-09-09 |
EP1167729B1 (de) | 2005-03-23 |
DE50009866D1 (de) | 2005-04-28 |
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