WO2001065110A2 - Verfahren zur klopfregelung einer verbrennungskraftmaschine - Google Patents
Verfahren zur klopfregelung einer verbrennungskraftmaschine Download PDFInfo
- Publication number
- WO2001065110A2 WO2001065110A2 PCT/DE2001/000675 DE0100675W WO0165110A2 WO 2001065110 A2 WO2001065110 A2 WO 2001065110A2 DE 0100675 W DE0100675 W DE 0100675W WO 0165110 A2 WO0165110 A2 WO 0165110A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinders
- cylinder
- knock
- evaluation electronics
- assigned
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1526—Digital data processing dependent on pinking with means for taking into account incorrect functioning of the pinking sensor or of the electrical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
-
- 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
- F02D41/266—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the computer being backed-up or assisted by another circuit, e.g. analogue
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1522—Digital data processing dependent on pinking with particular means concerning an individual cylinder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the invention relates to a method for knock control of an internal combustion engine with the features mentioned in the preamble of claim 1.
- Knocking burns are characterized by characteristic vibrations, which can be detected by means of so-called knock sensors, which are arranged on the housing of the internal combustion engine.
- Knocking combustion depends, for example, on the quality of a fuel used, a compression of the fuel-air mixture in the cylinders and / or an ignition timing.
- a so-called late adjustment of an ignition time takes place by a predeterminable amount. Since a late acceleration of the ignition point to loss of torque and increased fuel consumption, it is known to drive the internal combustion engine as close as possible to a so-called knock limit.
- the knock control takes over the approach of the internal combustion engine to the knock limit as close as possible.
- the ignition timing is controlled here in accordance with the actual signals determined with the knock sensors.
- knock sensors which are usually designed as structure-borne noise sensors.
- the use of ion current sensors or pressure sensors is also conceivable.
- At least one cylinder of the internal combustion engine is assigned to each of these knock sensors.
- the control unit has two evaluation electronics, to which the sensors are assigned, by means of which cylinder-selective evaluation of the sensor signals takes place.
- the evaluation circuit supplies the result of the processed sensor signals to control electronics, which are usually integrated in an engine control unit.
- control electronics which are usually integrated in an engine control unit.
- the evaluation electronics are constantly monitored for their function by means of a diagnosis. If a malfunction is found, the system automatically switches to a safety knock control to rule out damage to the internal combustion engine.
- This safety knock control consists in the safety retarding of the ignition times for all cylinders of the internal combustion engine.
- any retardation of the ignition timing, and thus the ignition angle, away from the optimal ignition angle causes a deterioration in the efficiency and a reduction in the performance of the internal combustion engine and thus an increased fuel consumption.
- a boost pressure drop can occur, which can lead to power losses of up to 40%.
- the method according to the invention with the features mentioned in claim 1 offers the advantage that in the event of failure or malfunction of one of the knock control electronics, a safety retarding of the ignition timing is not necessary for all cylinders of the internal combustion engine.
- a safety retarding of the ignition timing is not necessary for all cylinders of the internal combustion engine.
- a master cylinder function is activated for the cylinders assigned to this evaluation electronics. This means that the cylinders of the defective evaluation electronics are guided through cylinders of an intact evaluation electronics.
- the knock detection and the decision as to which cylinders take over the leadership of the cylinders assigned to the failed evaluation electronics, as well as the calculation of the resulting retardation of the ignition angle, are carried out by the central control electronics (engine control unit). Only when all of the evaluation electronics are recognized as defective is a Uniform safety delay adjustment activated for all cylinders.
- At least one cylinder of intact evaluation electronics is selected as the master cylinder.
- the ignition angle adjustments of the at least one guided cylinder are derived from those of the at least one master cylinder. There are preferably several options here. Thus it can preferably be provided that an ignition angle adjustment of the guided cylinder is equal to an ignition angle of the master cylinder. It is further preferred if the ignition angle adjustment of the at least one guided cylinder corresponds to an ignition angle adjustment of the at least one guide cylinder plus a safety offset (late adjustment away from the knock limit).
- the retardation of the ignition angle in the at least one guided cylinder takes place in one step after a knocking event on the master cylinder. It is further preferred if the late adjustment in the at least one guided cylinder takes place in several small steps after a knock event in the at least one guide cylinder.
- the cylinder which uses the greatest retardation of the ignition timing is defined as the master cylinder.
- the evaluation electronics determine which of the cylinders are suitable as master cylinders in the respective groups assigned to an evaluation electronics.
- a knock sensor 20, 22, 24 and 26 is assigned to each of the cylinders 12, 14, 16 and 18.
- Knock sensors detect structure-borne sound vibrations that are caused by burns in the cylinders 12, 14, 16 and / or 18.
- the knock sensors detect structure-borne sound vibrations that are caused by burns in the cylinders 12, 14, 16 and / or 18. The knock sensors
- the evaluation electronics 30 is the knock sensor 20 and the knock sensor 22 and
- Evaluation electronics 32 of the knock sensor 24 and the knock sensor 26 associated.
- 30 and 32 are either digital, analog or in
- the evaluation electronics 30 or 32 are integrated in an engine control unit 28, to which the signals supplied and processed by the knock sensors 20, 22, 24, 26 are fed.
- the engine control unit 28 includes, among other things, at least one microprocessor 33 and at least one memory means 34, in which control algorithms for the components 36 are stored, which influence the combustion in the cylinders 12, 14, 16 and 18.
- the components 36 are, for example, actuators for adjusting an ignition of the internal combustion engine 10.
- a diagnostic module 38 is assigned to the evaluation electronics 30 and 32 and permanently monitors the function of the evaluation electronics 30 and 32 during their intended use.
- the diagnostic module 38 is implemented in the engine control unit 28.
- the diagnostic module can be physically implemented by the at least one microprocessor 33, which processes a corresponding routine.
- the knock control system shown schematically in the figure has the following function:
- the combustion in the individual cylinders 12, 14, 16 and 18 is continuously monitored by means of the knock sensors 20, 22, 24 and 26.
- a control parameter specification is made to the components 36 via the evaluation electronics 30 and 32 or the data control device 28, so that a knocking combustion in the cylinders 12, 14, 16 and 18 is suppressed.
- the cylinders 12, 14, 16 and 18 are moved close to their knock limit.
- the evaluation electronics 32 and 34 are continuously monitored for their function by the diagnostic module 38 (control unit 28). If, for example, a malfunction occurs in the evaluation electronics 30, this is detected by the diagnostic module 38.
- the diagnostic module 38 then causes a master cylinder function to be activated for the knock control of the cylinders 12, 14. As a result, the cylinders 12, 14 are guided through the cylinders assigned to the evaluation electronics 32. This measure ensures that the cylinders 16 and 18 continue to be operated optimally knock-controlled via the evaluation electronics 32.
- a master cylinder function for knock control of cylinders 12, 14 is activated so that they continue to be operated knock-controlled.
- the cylinders 16 and 18 are optimally knock-controlled, while the cylinders 12 and 14 can be driven relatively close to their knock limit despite a defect in the evaluation electronics 30 assigned to them.
- the cylinders 12 and 14 are thus guided through the cylinders 16 and 18.
- This guidance means that none of the cylinders 12, 14, 16 and 18 of the internal combustion engine 10 has to be driven with the safety retard of the ignition timing, with the disadvantages mentioned above associated with it. All in all This results in a clear improvement in the performance and efficiency of the internal combustion engine 10 when the evaluation electronics 30 are defective.
- each of the cylinders 12, 14, 16 and 18 is assigned its own evaluation electronics, which can be switched over accordingly in the event of a fault.
- corresponding cylinder groups can also each be assigned to one electronic evaluation unit.
- a knock sensor can also be assigned to several, for example two, cylinders.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0108752-5A BR0108752A (pt) | 2000-03-01 | 2001-02-22 | Processo para a regulagem antidetonante de uma máquina de combustão interna |
KR1020027011436A KR20020080459A (ko) | 2000-03-01 | 2001-02-22 | 엔진의 노킹 조절을 위한 방법 |
EP01915030A EP1264105A2 (de) | 2000-03-01 | 2001-02-22 | Verfahren zur klopfregelung einer verbrennungskraftmaschine |
US10/220,681 US6769402B2 (en) | 2000-03-01 | 2001-02-22 | Method for knock regulation in an internal combustion engine |
JP2001563781A JP2003525392A (ja) | 2000-03-01 | 2001-02-22 | 内燃機関のノッキング制御方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10009779A DE10009779A1 (de) | 2000-03-01 | 2000-03-01 | Verfahren zur Klopfregelung einer Verbrennungskraftmaschine |
DE10009779.0 | 2000-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001065110A2 true WO2001065110A2 (de) | 2001-09-07 |
WO2001065110A3 WO2001065110A3 (de) | 2002-03-07 |
Family
ID=7632977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/000675 WO2001065110A2 (de) | 2000-03-01 | 2001-02-22 | Verfahren zur klopfregelung einer verbrennungskraftmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US6769402B2 (de) |
EP (1) | EP1264105A2 (de) |
JP (1) | JP2003525392A (de) |
KR (1) | KR20020080459A (de) |
CN (1) | CN1406317A (de) |
BR (1) | BR0108752A (de) |
DE (1) | DE10009779A1 (de) |
WO (1) | WO2001065110A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1324228C (zh) * | 2003-05-16 | 2007-07-04 | 本田技研工业株式会社 | 可变气缸内燃机的爆震控制装置和方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3827083B2 (ja) * | 2002-11-08 | 2006-09-27 | 三菱電機株式会社 | 内燃機関のノック検出装置 |
DE102005058863A1 (de) * | 2005-12-09 | 2007-06-14 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Zuordnung von Klopfsensoren zu Zylindern einer Brennkraftmaschine |
JP4390774B2 (ja) * | 2006-01-27 | 2009-12-24 | トヨタ自動車株式会社 | 内燃機関の点火時期制御装置 |
DE102007006937A1 (de) * | 2007-02-13 | 2008-08-14 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine |
GB0705026D0 (en) * | 2007-03-15 | 2007-04-25 | Delphi Tech Inc | Vehicle diagnosis system and method |
US7526943B2 (en) * | 2007-03-23 | 2009-05-05 | Gm Global Technology Operations, Inc. | Knock system with detection zones |
DE102014102325A1 (de) * | 2014-02-24 | 2015-08-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Regeln eines Zündzeitpunktes |
US9863335B1 (en) * | 2016-08-12 | 2018-01-09 | Delphi Technologies, Inc. | Method for diagnosing a variable-lift camshaft follower |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539407A1 (de) * | 1985-11-07 | 1987-05-14 | Bosch Gmbh Robert | Rechnersystem mit zwei prozessoren |
US4697566A (en) * | 1985-11-13 | 1987-10-06 | Hitachi, Ltd. | Method of controlling electronic fuel injection to internal combustion engine |
DE4300929C1 (de) * | 1993-01-15 | 1994-01-13 | Audi Ag | Zylinderselektive Klopfregelung einer fremdgezündeten, mehrzylindrigen Brennkraftmaschine |
FR2694341A1 (fr) * | 1992-07-31 | 1994-02-04 | Robin Centre Est Aeronautique | Système de commande d'alimentation, en particulier pour moteurs à combustion interne d'avions légers. |
DE19709395A1 (de) * | 1997-03-07 | 1998-09-17 | Bosch Gmbh Robert | Verfahren zur Klopfregelung in Mehrzylinder-Brennkraftmaschinen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4049957A (en) * | 1971-06-23 | 1977-09-20 | Hitachi, Ltd. | Dual computer system |
GB1483733A (en) * | 1973-11-07 | 1977-08-24 | Lucas Industries Ltd | Electric control circuit arrangements for gas turbine engines |
US5144929A (en) * | 1990-10-02 | 1992-09-08 | Mitsubishi Denki Kabushiki Kaisha | Knock suppression apparatus and method for a multi-cylinder internal combusiton engine |
JP3626395B2 (ja) * | 2000-06-12 | 2005-03-09 | 三菱電機株式会社 | 内燃機関用ノック制御装置 |
-
2000
- 2000-03-01 DE DE10009779A patent/DE10009779A1/de not_active Withdrawn
-
2001
- 2001-02-22 KR KR1020027011436A patent/KR20020080459A/ko not_active Application Discontinuation
- 2001-02-22 US US10/220,681 patent/US6769402B2/en not_active Expired - Fee Related
- 2001-02-22 CN CN01805761A patent/CN1406317A/zh active Pending
- 2001-02-22 BR BR0108752-5A patent/BR0108752A/pt not_active IP Right Cessation
- 2001-02-22 WO PCT/DE2001/000675 patent/WO2001065110A2/de not_active Application Discontinuation
- 2001-02-22 EP EP01915030A patent/EP1264105A2/de not_active Ceased
- 2001-02-22 JP JP2001563781A patent/JP2003525392A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539407A1 (de) * | 1985-11-07 | 1987-05-14 | Bosch Gmbh Robert | Rechnersystem mit zwei prozessoren |
US4697566A (en) * | 1985-11-13 | 1987-10-06 | Hitachi, Ltd. | Method of controlling electronic fuel injection to internal combustion engine |
FR2694341A1 (fr) * | 1992-07-31 | 1994-02-04 | Robin Centre Est Aeronautique | Système de commande d'alimentation, en particulier pour moteurs à combustion interne d'avions légers. |
DE4300929C1 (de) * | 1993-01-15 | 1994-01-13 | Audi Ag | Zylinderselektive Klopfregelung einer fremdgezündeten, mehrzylindrigen Brennkraftmaschine |
DE19709395A1 (de) * | 1997-03-07 | 1998-09-17 | Bosch Gmbh Robert | Verfahren zur Klopfregelung in Mehrzylinder-Brennkraftmaschinen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1324228C (zh) * | 2003-05-16 | 2007-07-04 | 本田技研工业株式会社 | 可变气缸内燃机的爆震控制装置和方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2001065110A3 (de) | 2002-03-07 |
JP2003525392A (ja) | 2003-08-26 |
KR20020080459A (ko) | 2002-10-23 |
DE10009779A1 (de) | 2001-09-06 |
CN1406317A (zh) | 2003-03-26 |
BR0108752A (pt) | 2002-12-24 |
US6769402B2 (en) | 2004-08-03 |
US20030154958A1 (en) | 2003-08-21 |
EP1264105A2 (de) | 2002-12-11 |
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