EP1530676A1 - Verfahren zum betrieb einer brennkraftmaschine - Google Patents
Verfahren zum betrieb einer brennkraftmaschineInfo
- Publication number
- EP1530676A1 EP1530676A1 EP03792117A EP03792117A EP1530676A1 EP 1530676 A1 EP1530676 A1 EP 1530676A1 EP 03792117 A EP03792117 A EP 03792117A EP 03792117 A EP03792117 A EP 03792117A EP 1530676 A1 EP1530676 A1 EP 1530676A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve needle
- control signal
- valve
- intermediate position
- closed position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 18
- 238000004590 computer program Methods 0.000 claims description 8
- 238000011109 contamination Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000011017 operating method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000036316 preload Effects 0.000 description 1
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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
Definitions
- the present invention relates to a method for operating an internal combustion engine, in which a valve needle of an injection valve is adjusted from a closed position via an intermediate position to an open position and back again by means of a piezoelectric actuator actuated by a control signal.
- control signal has a greater slope when the valve needle changes from the closed position to the intermediate position than when the valve needle changes from the intermediate position to the open position.
- the comparatively large slope of the Control signal for the piezoelectric actuator during the transition of the valve needle from the closed position to the intermediate position causes a rapid adjustment of the valve needle from the closing position to the intermediate position, so that the period in which the has a low needle, is short, so that the likelihood of valve contamination or clogging due to the trapping of particles is reduced.
- a computer program for a control device of an internal combustion engine in which a valve needle of an injection valve is adjusted from a closed position via an intermediate position to an open position and back again by means of a piezoelectric actuator acted upon by a control signal, wherein the computer program from the r uhru g of the inventive method is suitable.
- the piezoelectric actuator (not shown) is actuated by a control device of the internal combustion engine, likewise not shown, with the part of the actuation signal SA which is in the region SZ and in which the actuation signal SA has a comparatively large slope. This ensures that the valve needle of the
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)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10237408A DE10237408A1 (de) | 2002-08-16 | 2002-08-16 | Verfahren zum Betrieb einer Brennkraftmaschine |
| DE10237408 | 2002-08-16 | ||
| PCT/DE2003/002212 WO2004018859A1 (de) | 2002-08-16 | 2003-07-02 | Verfahren zum betrieb einer brennkraftmaschine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1530676A1 true EP1530676A1 (de) | 2005-05-18 |
| EP1530676B1 EP1530676B1 (de) | 2009-04-22 |
| EP1530676B9 EP1530676B9 (de) | 2009-11-04 |
Family
ID=30469750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03792117A Expired - Lifetime EP1530676B9 (de) | 2002-08-16 | 2003-07-02 | Verfahren zum betrieb einer brennkraftmaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7373927B2 (de) |
| EP (1) | EP1530676B9 (de) |
| JP (1) | JP2005535832A (de) |
| DE (2) | DE10237408A1 (de) |
| ES (1) | ES2322580T3 (de) |
| WO (1) | WO2004018859A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0616713D0 (en) * | 2006-08-23 | 2006-10-04 | Delphi Tech Inc | Piezoelectric fuel injectors |
| CA2600323C (en) * | 2007-09-20 | 2009-12-29 | Westport Power Inc. | Directly actuated valve with a strain-type actuator and a method of operating same |
| US7721716B1 (en) | 2008-07-16 | 2010-05-25 | Harwood Michael R | High pressure piezoelectric fuel injector |
| JP2012041897A (ja) * | 2010-08-20 | 2012-03-01 | Toyota Motor Corp | スターリングエンジンの制御装置 |
| US9284930B2 (en) | 2011-06-03 | 2016-03-15 | Michael R. Harwood | High pressure piezoelectric fuel injector |
| JP2013104326A (ja) * | 2011-11-11 | 2013-05-30 | Toyota Motor Corp | 内燃機関の燃料噴射システム |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3803424A (en) * | 1972-05-08 | 1974-04-09 | Physics Int Co | Piezoelectric pump system |
| US4726389A (en) * | 1986-12-11 | 1988-02-23 | Aisan Kogyo Kabushiki Kaisha | Method of controlling injector valve |
| US5025766A (en) * | 1987-08-24 | 1991-06-25 | Hitachi, Ltd. | Fuel injection valve and fuel supply system equipped therewith for internal combustion engines |
| JP2935499B2 (ja) * | 1988-10-27 | 1999-08-16 | 株式会社デンソー | ディーゼル機関用ピエゾ式噴射弁の駆動装置 |
| US6253736B1 (en) * | 1999-08-10 | 2001-07-03 | Cummins Engine Company, Inc. | Fuel injector nozzle assembly with feedback control |
| US6420817B1 (en) * | 2000-02-11 | 2002-07-16 | Delphi Technologies, Inc. | Method for detecting injection events in a piezoelectric actuated fuel injector |
| DE60023446T2 (de) * | 2000-04-01 | 2006-05-18 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Bestimmung der Ladungsquantität während des Auf- und Entladens von piezoelektrischen Elementen |
| US6990855B2 (en) * | 2000-05-04 | 2006-01-31 | Cummins, Inc. | System for estimating a quantity of parasitic leakage from a fuel injection system |
| DE10035815A1 (de) * | 2000-07-22 | 2002-01-31 | Bosch Gmbh Robert | Verfahren zur Steuerung eines Einspritzventils |
| DE10039418A1 (de) * | 2000-08-11 | 2002-02-28 | Siemens Ag | Verfahren zum Steuren einer Düsennadel einer Dosiervorrichtung |
| FR2819022B1 (fr) * | 2000-12-28 | 2006-06-02 | Denso Corp | Dispositif de commande hydraulique, systeme et procede de commande d'un dispositif actionneur |
| GB0104215D0 (en) * | 2001-02-21 | 2001-04-11 | Delphi Tech Inc | Control method |
| DE10113670A1 (de) * | 2001-03-21 | 2002-09-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Ansteuerung eines Piezoaktors |
| US6760212B2 (en) * | 2002-09-23 | 2004-07-06 | Delphi Technologies, Inc. | Piezoelectric injector drive circuit |
-
2002
- 2002-08-16 DE DE10237408A patent/DE10237408A1/de not_active Ceased
-
2003
- 2003-07-02 ES ES03792117T patent/ES2322580T3/es not_active Expired - Lifetime
- 2003-07-02 EP EP03792117A patent/EP1530676B9/de not_active Expired - Lifetime
- 2003-07-02 US US10/524,602 patent/US7373927B2/en not_active Expired - Fee Related
- 2003-07-02 JP JP2004529700A patent/JP2005535832A/ja active Pending
- 2003-07-02 WO PCT/DE2003/002212 patent/WO2004018859A1/de not_active Ceased
- 2003-07-02 DE DE50311455T patent/DE50311455D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004018859A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1530676B9 (de) | 2009-11-04 |
| ES2322580T3 (es) | 2009-06-23 |
| US20060118092A1 (en) | 2006-06-08 |
| JP2005535832A (ja) | 2005-11-24 |
| DE50311455D1 (de) | 2009-06-04 |
| WO2004018859A1 (de) | 2004-03-04 |
| DE10237408A1 (de) | 2004-02-19 |
| US7373927B2 (en) | 2008-05-20 |
| EP1530676B1 (de) | 2009-04-22 |
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