JP4340306B2 - 燃料噴射器制御に関する改善 - Google Patents
燃料噴射器制御に関する改善 Download PDFInfo
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- JP4340306B2 JP4340306B2 JP2007181815A JP2007181815A JP4340306B2 JP 4340306 B2 JP4340306 B2 JP 4340306B2 JP 2007181815 A JP2007181815 A JP 2007181815A JP 2007181815 A JP2007181815 A JP 2007181815A JP 4340306 B2 JP4340306 B2 JP 4340306B2
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- injector
- actuator
- drive pulse
- frequency spectrum
- electrical
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- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000001228 spectrum Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 238000013500 data storage Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 description 18
- 238000004364 calculation method Methods 0.000 description 17
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/06—Drive circuits; Control arrangements or methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2055—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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
- F02D2041/286—Interface circuits comprising means for signal processing
- F02D2041/288—Interface circuits comprising means for signal processing for performing a transformation into the frequency domain, e.g. Fourier transformation
Description
好ましい実施形態では、所定の期間中電気特性をモニタするステップは、噴射器が非活動化された後(例えば、アクチュエータ充電フェーズの後)所定の期間中アクチュエータ電圧をモニタするステップを含む。しかし、噴射器が活動化された後(例えば、放電フェーズの後)モニタするステップが行われてもよい。
第4の態様によれば、本発明の第3の態様によるデータ記憶媒体を有するマイクロコンピュータが提供される。
3 電子制御システム
4 圧電アクチュエータ
5 油圧増幅器
6 噴射器バルブニードル
7 スタック
8 バルブニードルシート
10 ノズル出口
20 噴射器制御ユニット
22 エンジン制御ユニット
24 エンジンパラメータ
26 噴射器駆動回路
28 MDP計算モジュール
300 「計算MDP」コマンドを受け取るまで待機状態
302 最短継続期間PNの駆動パルスを印加
304 時間領域データサンプルを取得
306 PN=MAX 所定のMDP継続期間
308 駆動パルス継続期間を増大
310 各データサンプルについてスペクトル密度シグニチャを計算
312 各スペクトル密度シグニチャについて所定の周波数で振幅を調査
314 最短送出パルス(MDP)値をフィードバック
Claims (10)
- 噴射器を活動化および非活動化するために電気駆動パルスを印加することによって動作可能な圧電アクチュエータ(7)を有する燃料噴射器を作動させる方法であって、
複数の電気駆動パルス(P1、P2、P3、P4、P5)を前記圧電アクチュエータ(7)に印加するステップであって、各々次の電気駆動パルスが前の電気駆動パルスに対して増大した継続期間を有する、ステップと、
所定の期間中にモニタされた電気特性に対応する各電気駆動パルスに対する時間領域データサンプルを決定するために、各電気駆動パルスの印加後に、所定の期間中前記アクチュエータ(7)の電気特性をモニタするステップと、
前記各時間領域データサンプルに対応する周波数スペクトルシグニチャを決定するステップと、
噴射事象を開始するのに必要な最短送出パルスを決定するために、前記モニタされた各電気特性の前記周波数スペクトルシグニチャを、噴射事象を示す所定の周波数スペクトルシグニチャと比較するステップと
を含む方法。 - 前記所定の期間中前記電気特性をモニタする前記ステップが、前記噴射器が非活動化された後、所定の期間中前記アクチュエータ電圧および/または前記アクチュエータ電流をモニタするステップを含む、請求項1に記載の方法。
- 前記比較するステップが、前記周波数スペクトルシグニチャの各々の信号振幅が所定の閾値を超えているかどうかを決定するステップを含む、請求項1または2に記載の方法。
- 前記最短送出パルスが、前記所定の閾値を超える最短継続期間を有する前記電気駆動パルスを決定することによって識別される、請求項1から3のいずれか一項に記載の方法。
- 前記電気駆動パルスのすべてが前記時間領域データサンプルを供給するためにモニタされた後で前記周波数スペクトルシグニチャを決定する前記ステップが実行される、請求項1から4のいずれか一項に記載の方法。
- 前記時間領域データサンプルの各々の前記周波数スペクトルシグニチャを決定する前記ステップが、次の電気駆動パルスがモニタされる前に前記電気駆動パルスの各々に対して順に実行される、請求項1から4のいずれか一項に記載の方法。
- 前記電気特性が前記アクチュエータの両端の電圧である、請求項1から6のいずれか一項に記載の方法。
- 実行環境で実行されたとき請求項1から7のいずれか一項に記載の方法を実行するのに動作可能である少なくとも1つのコンピュータプログラムソフトウェア部分を含むコンピュータプログラム製品。
- 請求項8に記載の各コンピュータソフトウェア部分を記憶したデータ記憶媒体。
- 請求項9に記載のデータ記憶媒体を備えたマイクロコンピュータ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0614855.5A GB0614855D0 (en) | 2006-07-26 | 2006-07-26 | Method of operating a fuel injector |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008031993A JP2008031993A (ja) | 2008-02-14 |
JP4340306B2 true JP4340306B2 (ja) | 2009-10-07 |
Family
ID=37006204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007181815A Active JP4340306B2 (ja) | 2006-07-26 | 2007-07-11 | 燃料噴射器制御に関する改善 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8000876B2 (ja) |
EP (1) | EP1887205B1 (ja) |
JP (1) | JP4340306B2 (ja) |
AT (1) | ATE450704T1 (ja) |
DE (1) | DE602007003526D1 (ja) |
GB (1) | GB0614855D0 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005036190A1 (de) * | 2005-08-02 | 2007-02-08 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung eines Einspritzsystems einer Brennkraftmaschine |
US20130019842A1 (en) * | 2009-12-11 | 2013-01-24 | Purdue Research Foundation | Flow rate estimation for piezo-electric fuel injection |
US9442594B2 (en) * | 2010-09-29 | 2016-09-13 | Peratech Holdco Limited | Resistance changing sensor |
US8700360B2 (en) * | 2010-12-31 | 2014-04-15 | Cummins Intellectual Properties, Inc. | System and method for monitoring and detecting faults in a closed-loop system |
DE102011003751B4 (de) * | 2011-02-08 | 2021-06-10 | Vitesco Technologies GmbH | Einspritzvorrichtung |
DE102012209965A1 (de) * | 2012-06-14 | 2013-12-19 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Ventils |
GB2523318A (en) * | 2014-02-19 | 2015-08-26 | Gm Global Tech Operations Inc | Method of operating an internal combustion engine |
DE102014212377B4 (de) * | 2014-06-27 | 2016-07-21 | Continental Automotive Gmbh | Verfahren zur Bestimmung eines Zustandes eines Einspritzventils |
FR3051956B1 (fr) * | 2016-05-31 | 2018-05-25 | Continental Automotive France | Procede de detection de la defaillance d'une solution logicielle d'estimation de l'instant d'interruption d'une injection de carburant d'un moteur a combustion interne |
US10401398B2 (en) | 2017-03-03 | 2019-09-03 | Woodward, Inc. | Fingerprinting of fluid injection devices |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4499878A (en) * | 1982-10-25 | 1985-02-19 | Nippon Soken, Inc. | Fuel injection system for an internal combustion engine |
FR2726603B1 (fr) * | 1994-11-09 | 1996-12-13 | Snecma | Dispositif de controle actif des instabilites de combustion et de decokefaction d'un injecteur de carburant |
US6026639A (en) * | 1997-11-03 | 2000-02-22 | Engelhard Corporation | Apparatus and method for diagnosis of catalyst performance |
DE19804196A1 (de) | 1998-02-03 | 1999-08-12 | Siemens Ag | Verfahren zur Auswertung von Kennwerten piezo-mechanischer Systeme |
EP1139445A1 (en) * | 2000-04-01 | 2001-10-04 | Robert Bosch GmbH | Method and apparatus for diagnosing a fault in a system utilizing a piezoelectric element |
US6668812B2 (en) * | 2001-01-08 | 2003-12-30 | General Motors Corporation | Individual cylinder controller for three-cylinder engine |
DE102004023545A1 (de) * | 2004-05-13 | 2005-12-08 | Daimlerchrysler Ag | Verfahren zur Ermittlung der Position eines beweglichen Verschlusselementes eines Einspritzventils |
US7027910B1 (en) * | 2005-01-13 | 2006-04-11 | General Motors Corporation | Individual cylinder controller for four-cylinder engine |
DE102005036190A1 (de) * | 2005-08-02 | 2007-02-08 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung eines Einspritzsystems einer Brennkraftmaschine |
EP1860311B1 (en) * | 2006-05-23 | 2009-04-22 | Delphi Technologies, Inc. | A controller for a fuel injector and a method of operating a fuel injector |
-
2006
- 2006-07-26 GB GBGB0614855.5A patent/GB0614855D0/en not_active Ceased
-
2007
- 2007-07-09 DE DE602007003526T patent/DE602007003526D1/de active Active
- 2007-07-09 AT AT07252741T patent/ATE450704T1/de not_active IP Right Cessation
- 2007-07-09 US US11/825,711 patent/US8000876B2/en active Active
- 2007-07-09 EP EP07252741A patent/EP1887205B1/en active Active
- 2007-07-11 JP JP2007181815A patent/JP4340306B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20080027585A1 (en) | 2008-01-31 |
GB0614855D0 (en) | 2006-09-06 |
DE602007003526D1 (de) | 2010-01-14 |
JP2008031993A (ja) | 2008-02-14 |
US8000876B2 (en) | 2011-08-16 |
EP1887205B1 (en) | 2009-12-02 |
EP1887205A1 (en) | 2008-02-13 |
ATE450704T1 (de) | 2009-12-15 |
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