EP1272754B1 - Procede de diagnostic de la commande de tension pour actionneur piezo-electrique d'une soupape d'injection - Google Patents
Procede de diagnostic de la commande de tension pour actionneur piezo-electrique d'une soupape d'injection Download PDFInfo
- Publication number
- EP1272754B1 EP1272754B1 EP01911413A EP01911413A EP1272754B1 EP 1272754 B1 EP1272754 B1 EP 1272754B1 EP 01911413 A EP01911413 A EP 01911413A EP 01911413 A EP01911413 A EP 01911413A EP 1272754 B1 EP1272754 B1 EP 1272754B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- actuator
- actuation
- injection
- reached
- 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.)
- Expired - Lifetime
Links
- 238000002347 injection Methods 0.000 title claims description 47
- 239000007924 injection Substances 0.000 title claims description 47
- 238000000034 method Methods 0.000 title claims description 22
- 238000003745 diagnosis Methods 0.000 title claims 2
- 238000005259 measurement Methods 0.000 claims description 7
- 230000006870 function Effects 0.000 claims description 3
- 230000003466 anti-cipated effect Effects 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000016507 interphase Effects 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
-
- 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
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
Definitions
- the invention is based on a method for diagnosing the Drive voltage for a piezoelectric actuator of a Injector according to the preamble of the main claim. It is already known, piezoelectrically driven injectors in particular to use for a common rail system. There is to initiate the injection process, the actuator with a corresponding voltage is driven, so that due its change in length a valve needle the injection channel for the injection process opens or closes. Since that Injection medium, in particular fuel for one Internal combustion engine is under high pressure is to highly accurate metering of the injection quantity an exact Opening and closing duration of the injector required.
- the inventive method with the characterizing Advantages of the main claim has the advantage over that by forming a tolerance band for each control a simple monitoring of the drive process is possible. It is particularly advantageous that the tolerance bands below Consideration of system and injection conditions be set, so that by a plausibility check easily ascertainable, whether to the momentary Injection cycle the desired drive voltage prevailed Has.
- injection systems with a multiple injection within a drive course cycle is advantageous in that in each phase of the injection the desired level of Control voltage is monitored. This ensures that that each injection pulse is monitored and errors easily be recognized.
- the last selected drive voltage maintain, if it can be assumed that For example, the scheme does not work as desired.
- An error that has occurred is advantageously stored so that he is traceable, for example, in the workshop and the corresponding component can be replaced.
- FIG. 1 shows an injection valve with a double-switching control valve
- Figure 2 shows a diagram with a drive characteristic
- Figure 3 shows three Function diagrams
- FIG. 4 shows a voltage diagram
- FIG. 5 shows a block diagram for a voltage regulation
- FIG. 6 shows a block diagram for a Gradient control.
- FIG. 1 shows a schematic illustration Injector 1 with a central bore.
- a control piston 3 with a piezoelectric actuator 2 introduced, wherein the actuating piston 3 with the actuator 2 fixed connected is.
- the actuating piston 3 closes upwards a hydraulic coupler 4 off, while down a Opening with a connecting channel to a first seat.
- 6 is provided, in which a piston 5 with a Closing member 12 is arranged.
- the closure member 12 is designed as a double-closing control valve. It closes the first seat 6 when the actuator 2 in the resting phase is. Upon actuation of the actuator 2, d. H.
- Each activation of the actuator 2 is the Control piston 3 in the direction of the hydraulic coupler. 4 emotional.
- the piston 5 moves with the Closing member 12 toward the second seat 7 to.
- About leak gaps is doing a part of the hydraulic Coupler 4 located medium, such as the Fuel, pushed out. Between two injections must Therefore, the hydraulic coupler 4 are refilled to to maintain its functional safety.
- the Common rail system for example, between 200 and 1600 bar can amount.
- This pressure acts against the nozzle needle eleventh and holds it against the pressure of a spring, not shown closed, so that no fuel can escape.
- the pressure builds up in the high pressure area From and the nozzle needle 11 releases the injection channel.
- a much lower pressure There is, for example, only 10% of the high pressure, is after the withdrawal of the drive voltage Ua of the hydraulic Coupler 4 refilled.
- the diagram of Figure 2 shows a driving characteristic for the actuator 2.
- Ua is the hub, d. H. the change in length of the actuator. 2 applied.
- the actuator 2 has two closed positions. In the end position 1 the closure member 12 is applied to the first seat 6, if no Drive voltage Ua applied to the actuator 2. This position is marked 'bottom closed' or 'bottom'.
- the second closed position in position 2 is reached when the Closing member on the second seat 7 is present. In this case is the highest drive voltage to spend Ua.
- These Position is called 'top closed' or 'top'. Between these two positions 1, 2 are the Hysteresis curves a and b, respectively, depending on the Be traversed direction of movement.
- FIG. 3 plots the injection parameters Vent, Ua and TR for a quadruple injection on an injection valve 1 over time t for three functional diagrams.
- the upper diagram shows the injection duration for the injections E 1 , E 2 , E 3 and E 4 .
- the designation 1 means that the valve Vent is open. At 0, the valve Vent is closed.
- the injections may be pre, main and post injections for a single injection cycle on an injection valve. In a further embodiment of the invention, differently designed injection cycles are alternatively providable.
- the middle diagram shows the drive voltage Ua for the actuator 2 to the individual injections, so that the injections E 1 ... E 4 can take place.
- the lower diagram shows the triggering TR for the control of the drive voltage Ua at the corresponding times t 1 , t 2 for the first injection, t 3 , t 4 for the second injection, t 5 , t 6 for the third injection and t 7 , t 8 for the fourth injection.
- the drive voltage Ua is different depending on the switching direction and the position of the closing member 12. For example, the drive voltage Ua between the times t 4 , t 5 is the highest.
- a tolerance band B 1 , B 2 , B 3 , B 4 is formed.
- This tolerance band is formed on the basis of operating parameters of the injection system, of the internal combustion engine or of environmental conditions. In a common rail system, it is for example the pressure (rail pressure), the temperature, engine speed, etc.
- Corresponding control circuits are proposed in Figures 5 and 6 and will be explained later in more detail.
- the control circuit provides a setpoint control voltage for the drive voltage Ua, which is required taking into account the individual parameters for controlling the actuator 2.
- Corresponding tolerance bands B 1 to B 4 are preferably placed symmetrically around these setpoint values for the drive voltage Ua.
- FIG. 4 again shows a multiple injection for an injection cycle, which proceeds as follows. Until the time t 1 , the drive voltage Ua is in the range of 0 V.
- the tolerance band B 1 is set according to the voltage U bottom . This voltage corresponds to the position 1 according to the figure 2.
- the Tolenanzband B 4 is provided for the voltage U Top for the second end position in position 2 ( Figure 2).
- the tolerance band B 2 is still provided according to the voltage U down .
- the times t 1 to t 6 represent the trigger points at which the voltage rises or falls. Before and after these times, in each case with an existing measuring device, which is preferably connected to the terminals of the actuator 2, the output voltage Ua measured and checked with an error device, whether the setpoint values for the drive voltages Ua were reached.
- the actuator can be beneficial only via a diagnostic interface as part of a service be reset.
- the error with each driving cycle to new identify can vary depending on the Application optionally be provided.
- control operation in to go to the control mode when the regulation of Activation voltage no longer possible appears.
- the last set Control voltage Ua or the controller outputs such as they are described to Figures 5 and 6, in a sense Freeze and continue to use.
- FIG. 5 shows a block diagram for a regulation of the Voltage levels Ua in schematic form.
- a subtractor 51 from the inputs a and b supplied nominal and actual values for the drive voltage Ua a difference value is formed.
- This one is in one downstream comparator 52 with the voltage in the associated tolerance band B1 ... B4 (eg lower threshold S11, upper threshold S12).
- the output is with connected to a Wegentpreller 58. Is the measured value in Range 0, then there is no error. If the value is 1, then there is an error and a corresponding one Control signal is given to the switch 56. simultaneously the difference value becomes a downstream controller 53 guided and a limit switch 54 the switch 56th fed.
- the switch 56 can on the one hand the setpoint on the other hand, it is an adder 55 which supplies the offset value to the setpoint at terminal a added.
- the output value is fed to a limiter 57, at an output c, the drive voltage Ua for the actuator 2 issues.
- the switching takes place according to the invention then, if the difference value for a given number of Measured values outside the respective tolerance band.
- the difference signal passes from the differentiating element 62 to a controller 64 and then via a Limit switch 65 on the switch 66. Similar to in Figure 5, the signal frozen or after link in Position 67 and 68 a limiter 69 for limiting the Current value for the actuator 2 are supplied. In addition will in position 67, the cylinder-specific gradient setpoint added. In position 68 can via an input c a Capacity value for the actuator 2 are entered. Of further inputs are f and g for the minimum / maximum of the Current limit 69 provided. At the output h is the Current value available.
- the calculations are preferably always done for each Cylinder of the internal combustion engine individually, for optimum To get injection.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Claims (14)
- Procédé de diagnostic de la commande pour un actionneur piézoélectrique d'un injecteur, dans lequel une aiguille d'injecteur peut être amenée au moyen de l'actionneur dans une position « ouverte » ou une position « fermée », la tension de commande (Ua) de l'actionneur (2) étant mesurée au moyen d'un dispositif de mesure dans les différentes phases de commande,
caractérisé en ce que
pour chaque phase de commande une bande de tolérances (B1 ... B4) est fixée pour la tension de commande (Ua) et/ou le gradient de tension, la bande de tolérances (B1 ... B4) étant fixée en tenant compte de conditions de système et d'injection, et
un diagnostic est effectué de telle sorte qu'un message d'erreur soit émis et/ou mémorisé lorsque la tension de commande et/ou le gradient de tension n'atteint pas la bande de tolérance (B1 ... B4) prédéterminée. - Procédé selon la revendication 1,
caractérisé en ce que
la tension de commande (Ua) est mesurée dans la zone des bornes d'actionneur (+, -). - Procédé selon la revendication 1 ou 2,
caractérisé en ce que
pour une injection multiple avec un cycle d'évolution de commande, la tension de commande (Ua) est mesurée dans chaque phase du cycle d'évolution de commande. - Procédé selon la revendication 3,
caractérisé en ce que
la valeur de consigne pour la tension de commande (Ua) est déterminée en fonction de la pression de conduite dans le système haute pression, et les bandes de tolérances (B1 ... B4) sont placées de préférence symétriquement autour des valeurs de consigne. - Procédé selon l'une quelconque des revendications précédentes,
caractérisé en ce que
l'injecteur (1) est conçu avec une soupape de commande (5) à double commutation, et les bandes de tolérances (B1 ... B4) sont formées pour les niveaux de tension « bas », « montant », « haut » et/ou « descendant ». - Procédé selon l'une quelconque des revendications précédentes,
caractérisé en ce que
si l'une des bandes de tolérances (B1 ... B4) prédéterminées n'est pas atteinte, l'actionneur (2) est déchargé pour passer dans un état sûr. - Procédé selon l'une quelconque des revendications précédentes,
caractérisé en ce que
lorsque l'on détecte que la bande de tolérances (B1 ... B4) prédéterminée n'est pas atteinte, les valeurs de mesure ne sont pas utilisées pour d'autres calculs. - Procédé selon l'une quelconque des revendications précédentes,
caractérisé en ce que
pour un nombre prédéterminé de cycles de mesure, on vérifie combien de fois la tension de commande (Ua) n'a pas atteint la bande de tolérances (B1 ... B4) prévue. - Procédé selon la revendication 8,
caractérisé en ce que
lorsque le nombre prédéterminé de cycles de mesures est atteint, on commute de « réguler la tension de commande » sur « commander la tension de commande ». - Procédé selon la revendication 8 ou 9,
caractérisé en ce que
lorsque le nombre prédéterminé de cycles de mesure est atteint, on coupe au moins l'actionneur (2) concerné. - Procédé selon la revendication 8 ou 9,
caractérisé en ce que
lorsque le nombre prédéterminé de cycles de mesure est atteint, on conserve la dernière grandeur de sortie déterminée des régulateurs pour le niveau de tension et/ou le gradient. - Procédé selon la revendication 8,
caractérisé en ce que
lorsque le nombre d'erreurs mesurées est inférieur à une valeur seuil prédéterminée, l'actionneur (2) est reconnu comme étant opérationnel. - Procédé selon la revendication 12,
caractérisé en ce que
la mémoire d'erreurs est remise à zéro. - Mise en oeuvre du procédé selon l'une quelconque des revendications précédentes pour un injecteur (1) dans un système à rampe commune d'un moteur de véhicule automobile.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10016476 | 2000-04-01 | ||
DE10016476A DE10016476A1 (de) | 2000-04-01 | 2000-04-01 | Verfahren zur Diagnose der Spannungsansteuerung für einen piezoelektrischen Aktor eines Einspritzventils |
PCT/DE2001/000393 WO2001075289A1 (fr) | 2000-04-01 | 2001-02-02 | Procede de diagnostic de la commande de tension pour actionneur piezo-electrique d'une soupape d'injection |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1272754A1 EP1272754A1 (fr) | 2003-01-08 |
EP1272754B1 true EP1272754B1 (fr) | 2005-11-02 |
Family
ID=7637402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01911413A Expired - Lifetime EP1272754B1 (fr) | 2000-04-01 | 2001-02-02 | Procede de diagnostic de la commande de tension pour actionneur piezo-electrique d'une soupape d'injection |
Country Status (6)
Country | Link |
---|---|
US (1) | US6820474B2 (fr) |
EP (1) | EP1272754B1 (fr) |
JP (1) | JP2003529714A (fr) |
DE (2) | DE10016476A1 (fr) |
ES (1) | ES2248289T3 (fr) |
WO (1) | WO2001075289A1 (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10033196A1 (de) * | 2000-07-07 | 2002-01-17 | Bosch Gmbh Robert | Verfahren bzw. Vorrichtungzur Erkennung eines Fehlerstromes an einem piezoelektrischen Aktor eines Einspritzventils oder an dessen Hochspannung führende Zuleitung |
DE10113560A1 (de) | 2001-03-21 | 2002-09-26 | Bosch Gmbh Robert | Einspritzventil |
DE10123372B4 (de) * | 2001-05-14 | 2006-12-28 | Siemens Ag | Verfahren zur Ansteuerung eines piezoelektrischen Aktors, der der Verschiebung eines Elements dient |
DE10206906C1 (de) * | 2002-02-19 | 2003-11-06 | Siemens Ag | Verfahren zur Steuerung einer durch Pienoinjektor eingespritzten Kraftstoffmenge |
DE10229394A1 (de) * | 2002-06-29 | 2004-01-29 | Robert Bosch Gmbh | Verfahren, Computerprogramm, Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine |
DE10256456A1 (de) * | 2002-12-03 | 2004-07-15 | Siemens Ag | Überwachungsverfahren für einen Aktor und zugehörige Treiberschaltung |
DE10303573B4 (de) * | 2003-01-30 | 2011-02-24 | Robert Bosch Gmbh | Verfahren, Computerprogramm, Speichermedium und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine insbesondere für ein Kraftfahrzeug |
DE10311141B4 (de) * | 2003-03-14 | 2019-03-28 | Robert Bosch Gmbh | Verfahren, Computerprogramm, Speichermedium und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine insbesondere für ein Kraftfahrzeug |
DE10349307B3 (de) * | 2003-10-23 | 2005-05-25 | Siemens Ag | Diagnoseverfahren für einen elektromechanischen Aktor |
DE102006012656A1 (de) * | 2006-03-20 | 2007-09-27 | Siemens Ag | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
EP1843027B1 (fr) * | 2006-04-03 | 2018-12-19 | Delphi International Operations Luxembourg S.à r.l. | Circuit de commande pour un arrangement d'injecteurs et méthode diagnostique |
US7675425B2 (en) * | 2006-04-10 | 2010-03-09 | Canon Kabushiki Kaisha | Liquid discharge device capable of self-diagnosis of discharge functions |
DE102006045657A1 (de) * | 2006-09-27 | 2008-04-03 | Robert Bosch Gmbh | Steckfühler mit optimiertem Strömungsauslass |
JP4853201B2 (ja) * | 2006-09-27 | 2012-01-11 | 株式会社デンソー | インジェクタ駆動装置及びインジェクタ駆動システム |
EP2006518B1 (fr) * | 2007-06-22 | 2011-11-02 | Delphi Technologies Holding S.à.r.l. | Détection de fautes dans un agencement d'injecteur |
DE102007033469B4 (de) * | 2007-07-18 | 2017-06-14 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Formung eines elektrischen Steuersignals für einen Einspritzimpuls |
DE102007044937B4 (de) * | 2007-09-20 | 2010-03-25 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
EP2048343A1 (fr) * | 2007-10-11 | 2009-04-15 | Delphi Technologies, Inc. | Détection de fautes dans un agencement d'injecteur |
DE102007049711A1 (de) * | 2007-10-17 | 2009-04-23 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Steuergeräts |
GB0807854D0 (en) * | 2008-04-30 | 2008-06-04 | Delphi Tech Inc | Detection of faults in an injector arrangement |
DE102008042981A1 (de) * | 2008-10-21 | 2010-04-22 | Robert Bosch Gmbh | Verfahren und Steuervorrichtung zur Ansteuerung eines Kraftstoffinjektors |
DE102011004613A1 (de) * | 2011-02-23 | 2012-08-23 | Continental Automotive Gmbh | Verfahren zur Überwachung des Zustandes eines Piezoinjektors eines Kraftstoffeinspritzsystems |
DE102011081161A1 (de) | 2011-08-18 | 2013-02-21 | Continental Automotive Gmbh | Ansteuerung und Ansteuerverfahren für einen piezoelektrischen Aktor |
KR101941950B1 (ko) * | 2012-12-17 | 2019-01-24 | 콘티넨탈 오토모티브 시스템 주식회사 | 차량의 인젝터 출력회로 파손 방지시스템 및 그 방지방법 |
FR3002592B1 (fr) * | 2013-02-26 | 2016-09-16 | Continental Automotive France | Procede de pilotage d'un injecteur piezoelectrique de carburant d'un moteur a combustion interne de vehicule, comportant une etape de polarisation de l'actionneur piezoelectrique |
DE102016201435B4 (de) * | 2016-02-01 | 2022-02-24 | Vitesco Technologies GmbH | Verfahren zum Laden und Entladen eines Piezo-Aktors |
WO2019238519A1 (fr) * | 2018-06-11 | 2019-12-19 | Hoerbiger Flow Control Gmbh | Vanne de sécurité |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0665872B2 (ja) * | 1985-09-04 | 1994-08-24 | 株式会社日本自動車部品総合研究所 | 液圧液体の噴射率制御装置 |
JPS62206253A (ja) * | 1986-03-07 | 1987-09-10 | Toyota Motor Corp | 燃料噴射制御装置 |
JP2570000B2 (ja) * | 1991-06-11 | 1997-01-08 | トヨタ自動車株式会社 | 可変バルブタイミング装置のフェイルセーフシステム |
JP3391114B2 (ja) * | 1994-10-13 | 2003-03-31 | 株式会社デンソー | 内燃機関のバルブタイミング調整装置 |
DE19729844A1 (de) * | 1997-07-11 | 1999-01-14 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung |
DE19733560B4 (de) * | 1997-08-02 | 2007-04-05 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Laden und Entladen eines piezoelektrischen Elements |
DE19742073A1 (de) * | 1997-09-24 | 1999-03-25 | Bosch Gmbh Robert | Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen |
JPH11141430A (ja) * | 1997-11-05 | 1999-05-25 | Yamaha Motor Co Ltd | 燃料噴射装置およびその駆動方法 |
DE19804196A1 (de) * | 1998-02-03 | 1999-08-12 | Siemens Ag | Verfahren zur Auswertung von Kennwerten piezo-mechanischer Systeme |
DE19810525C2 (de) * | 1998-03-11 | 2000-07-27 | Siemens Ag | Verfahren und Vorrichtung zum Ansteuern kapazitiver Stellglieder |
KR100638939B1 (ko) * | 1998-06-25 | 2006-10-25 | 지멘스 악티엔게젤샤프트 | 용량성 액추에이터를 제어하기 위한 방법 및 상기 제어 방법 실행 장치 |
DE19845042C2 (de) * | 1998-09-30 | 2000-08-24 | Siemens Ag | Verfahren und Anordnung zur Diagnose eines kapazitiven Aktors |
DE60043181D1 (de) * | 2000-04-01 | 2009-12-03 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Regelung von Spannungen und Spannungsgradienten zum Antrieb eines piezoelektrischen Elements |
DE10033196A1 (de) * | 2000-07-07 | 2002-01-17 | Bosch Gmbh Robert | Verfahren bzw. Vorrichtungzur Erkennung eines Fehlerstromes an einem piezoelektrischen Aktor eines Einspritzventils oder an dessen Hochspannung führende Zuleitung |
US6668633B2 (en) * | 2002-05-31 | 2003-12-30 | Hickok Incorporated | Electronic fuel injector tester |
-
2000
- 2000-04-01 DE DE10016476A patent/DE10016476A1/de not_active Withdrawn
-
2001
- 2001-02-02 US US10/240,338 patent/US6820474B2/en not_active Expired - Fee Related
- 2001-02-02 EP EP01911413A patent/EP1272754B1/fr not_active Expired - Lifetime
- 2001-02-02 DE DE50107910T patent/DE50107910D1/de not_active Expired - Lifetime
- 2001-02-02 WO PCT/DE2001/000393 patent/WO2001075289A1/fr active IP Right Grant
- 2001-02-02 ES ES01911413T patent/ES2248289T3/es not_active Expired - Lifetime
- 2001-02-02 JP JP2001572745A patent/JP2003529714A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE50107910D1 (de) | 2005-12-08 |
US6820474B2 (en) | 2004-11-23 |
JP2003529714A (ja) | 2003-10-07 |
ES2248289T3 (es) | 2006-03-16 |
EP1272754A1 (fr) | 2003-01-08 |
WO2001075289A1 (fr) | 2001-10-11 |
DE10016476A1 (de) | 2001-12-06 |
US20040008032A1 (en) | 2004-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1272754B1 (fr) | Procede de diagnostic de la commande de tension pour actionneur piezo-electrique d'une soupape d'injection | |
EP1268999B1 (fr) | Procede de determination de la pression de rampe d'une soupape d'injection comprenant un actionneur piezo-electrique | |
EP0795077A1 (fr) | Procede et dispositif permettant de surveiller un systeme de dosage de carburant | |
DE102006003861A1 (de) | Verfahren zum Betreiben einer Kraftstoffeinspritzvorrichtung, insbesondere eines Kraftfahrzeugs | |
EP1664511B1 (fr) | Procede de determination de la tension de commande d'un actionneur piezoelectrique d'une soupape d'injection | |
DE60011993T2 (de) | Apparat und Methode für das Ermitteln einer Verringerung der Kapazität während des Antriebes von piezoelektrischen Elementen | |
EP1172541A1 (fr) | Actionneur piézo-électrique pour système d'injection | |
EP1167729B2 (fr) | Actionneur piézo-électrique pour injecteur | |
EP1613851B1 (fr) | Procede pour determiner la tension d'amorcage individuelle d'un element piezo-electrique | |
DE102006053950B4 (de) | Verfahren zur Funktionsüberprüfung einer Druckerfassungseinheit eines Einspritzsystems einer Brennkraftmaschine | |
EP1551065B1 (fr) | Procédé et appareil de détermination de la tension de commande d'un actionneur piézoélectrique d'une soupape d'injection | |
DE10028353C2 (de) | Verfahren zur Überprüfung eines kapazitiven Stellgliedes | |
DE102011005527A1 (de) | Verfahren zur Prüfung der Kraftstoffmengenbilanz in einem Common Rail System, entsprechende Motorsteuerung sowie entsprechendes Diagnosegerät | |
DE102004037255B4 (de) | Verfahren zum Betreiben einer Kraftstoffeinspritzvorrichtung insbesondere für ein Kraftfahrzeug | |
DE10345311B4 (de) | Verfahren zum Betreiben einer Brennkraftmaschine, sowie Computerprogramm, elektrisches Speichermedium, Steuer- und/oder Regeleinrichtung und Brennkraftmaschine | |
DE10307461A1 (de) | Verfahren und Vorrichtung zur Überwachung eines piezoelektrischen Aktors | |
DE102004053265A1 (de) | Verfahren und Vorrichtung zur Adaption eines Anschlags eines elektrisch angesteuerten Stellgliedes | |
EP2044317B1 (fr) | Procédé de détermination d'une erreur dans une unité de dosage de carburant d'un système d'injection | |
DE10020627A1 (de) | Verfahren zum Betreiben eines Kraftstoffversorgungssystems für eine Brennkraftmaschine insbesondere eines Kraftfahrzeugs | |
DE10043688A1 (de) | Verfahren zur Diagnose eines Ventils in einem Kraftstoffversorgungssystem einer Brennkraftmaschine | |
DE19854306A1 (de) | Steller mit kapazitivem Element | |
DE102019003815B4 (de) | Verfahren zur Überwachung eines Injektors auf mechanische Schädigung | |
DE10301822B4 (de) | Verfahren zur Bestimmung der Längenausdehnung eines piezoelektrischen Aktors | |
DE19632339A1 (de) | Verfahren und Vorrichtung zur Überwachung eines Durchflußbegrenzers eines Kraftstoffzumeßsystems einer Brennkraftmaschine | |
DE102017200202A1 (de) | Verfahren zur Überprüfung eines Magnetventils eines Kraftstoffinjektors |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20021104 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHULZ, UDO Inventor name: RUEGER, JOHANNES-JOERG Inventor name: PITZAL, VOLKER Inventor name: MROSIK, MATTHIAS |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR IT |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR IT |
|
REF | Corresponds to: |
Ref document number: 50107910 Country of ref document: DE Date of ref document: 20051208 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2248289 Country of ref document: ES Kind code of ref document: T3 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20060803 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20070226 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20070531 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20070216 Year of fee payment: 7 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20081031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080229 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20080204 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080204 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080202 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20160426 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50107910 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170901 |