EP1009932A1 - Procede pour commander et reguler la combustion dans la chambre de combustion d'un moteur a combustion interne - Google Patents

Procede pour commander et reguler la combustion dans la chambre de combustion d'un moteur a combustion interne

Info

Publication number
EP1009932A1
EP1009932A1 EP98951200A EP98951200A EP1009932A1 EP 1009932 A1 EP1009932 A1 EP 1009932A1 EP 98951200 A EP98951200 A EP 98951200A EP 98951200 A EP98951200 A EP 98951200A EP 1009932 A1 EP1009932 A1 EP 1009932A1
Authority
EP
European Patent Office
Prior art keywords
combustion
combustion chamber
chamber pressure
cylinder
controlling
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.)
Withdrawn
Application number
EP98951200A
Other languages
German (de)
English (en)
Inventor
Manfred Mezger
Hubert Bischof
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1009932A1 publication Critical patent/EP1009932A1/fr
Withdrawn legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
    • F02D35/024—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure using an estimation
    • 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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness

Definitions

  • the invention relates to a method for controlling the combustion in the combustion chamber of an internal combustion engine, as is already known from DE 43 41 796 AI. In this known method is in each combustion chamber
  • Internal combustion engine arranged a pressure sensor so that the pressure in the combustion chamber can be detected in a predetermined period.
  • the pressure values during the compression stroke are stored until a predeterminable crank angle is reached and, after passing through the predeterminable crank angle, are output in mirror image in the same time periods, so that the difference between the pressure values still recorded during combustion and the output pressure values during the compression stroke can be formed .
  • the integral of the determined difference and the associated crank angle, at which a predeterminable area share of the integral is reached, forms the basis for determining the deviation of a determined crank angle from a predefined target crank angle, so that the combustion position is regulated on the basis of the determined deviation in the control unit can.
  • Methods are also known, in which detonator detections of the respective work cycle a pressure sensor in the Combustion chamber is arranged, and when a threshold value is exceeded by the sensor signals, it is decided that the cylinder in question is in its combustion cycle. Furthermore, it is known to provide a knock sensor for recognizing the respective work cycle, the signal of which is also compared with a threshold value and, if the threshold value is exceeded, it is concluded that the cylinder in question is in its work cycle.
  • the method according to the invention with the features of the main claim has the advantage over the known that no pressure sensor is to be provided in the combustion chamber, as a result of which additional bores in the cylinder head can be avoided. Furthermore, by reconstructing the combustion chamber pressure curve from the signal of the knock sensor, various operating variables of the internal combustion engine can be detected without additional sensors. With this method, the sensors that are already present can therefore be used to control various parameters.
  • FIG. 1 shows the basic structure of an evaluation unit with control unit for internal combustion engines and
  • FIG. 2 shows the basic method steps for processing the signals of the knock sensors.
  • FIG. 1 shows the schematic structure of an ignition system with knock sensors and evaluation unit.
  • four knock sensors 11 to 12 are each assigned to a single cylinder, not shown here.
  • the knock signal KS detected by each knock sensor 11 to 14 is fed to a downstream evaluation unit 15.
  • the evaluation unit 15 is also supplied with the crankshaft signal KW.
  • the cylinder-specific knock sensor signal is now conditioned in the evaluation unit 15 by means of corresponding evaluation methods, and the combustion chamber pressure curve of these cylinders is thus reconstructed from the measured acoustic signal.
  • the combustion position as is already known from DE 43 41 796 AI, is then determined from the reconstructed combustion chamber pressure curve.
  • the phase position as already described in detail in DE 40 02 228 AI, can be determined on the basis of the reconstructed combustion chamber curve and by comparison with a threshold value.
  • control variables 16 are then output as control variables 16 to a control unit 17, see above that the various control variables, for example for the ignition, are determined in the control unit 17 on the basis of the supplied control variables 16 and further input variables 18, which are determined by sensors not shown here.
  • FIG. 2 shows an overview of the individual process steps.
  • the knock signal KS is detected individually for the cylinder and, on the one hand, is passed on to step 21, in which the combustion chamber pressure curve for this cylinder is reconstructed from the knock signal KS.
  • the knock signal is examined in a step 22 for knocking KL that may have occurred during combustion.
  • an evaluation can then be carried out in various work steps assigned in parallel, either optionally for one or for all work steps.
  • the phase signal is determined in a step 23, the uneven running in a step 24, combustion misfires in a step 25 and the combustion situation in a step 26.
  • the outputs of these work steps 23 to 26 and the output of the knock detection circuit 22 are then guided to a work step 27 for controlling and regulating the subsequent combustion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé pour commander et réguler la combustion dans la chambre de combustion d'un moteur à combustion interne. Selon ce procédé, au moins un capteur de cliquetis détecte un signal de cliquetis pour chaque cylindre du moteur à combustion interne, ce signal est transmis à un circuit d'évaluation qui, à partir du signal de cliquetis détecté, reconstitue les caractéristiques de pression de la chambre de combustion, lesquelles sont évaluées en vue de la commande et de la régulation de la combustion suivante dans le cylindre concerné.
EP98951200A 1997-09-06 1998-08-24 Procede pour commander et reguler la combustion dans la chambre de combustion d'un moteur a combustion interne Withdrawn EP1009932A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19739085 1997-09-06
DE19739085A DE19739085A1 (de) 1997-09-06 1997-09-06 Verfahren zur Steuerung und Regelung der Verbrennung im Brennraum einer Brennkraftmaschine
PCT/DE1998/002471 WO1999013217A1 (fr) 1997-09-06 1998-08-24 Procede pour commander et reguler la combustion dans la chambre de combustion d'un moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1009932A1 true EP1009932A1 (fr) 2000-06-21

Family

ID=7841452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98951200A Withdrawn EP1009932A1 (fr) 1997-09-06 1998-08-24 Procede pour commander et reguler la combustion dans la chambre de combustion d'un moteur a combustion interne

Country Status (6)

Country Link
US (1) US6408819B1 (fr)
EP (1) EP1009932A1 (fr)
JP (1) JP2001515990A (fr)
KR (1) KR20010013465A (fr)
DE (1) DE19739085A1 (fr)
WO (1) WO1999013217A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233612B4 (de) * 2002-07-24 2008-07-10 Siemens Ag Verfahren und Vorrichtung zum Steuern des Verbrennungsvorganges einer HCCI-Brennkraftmaschine
US7133761B2 (en) * 2003-06-30 2006-11-07 Westport Research Inc. Method and apparatus for controlling an internal combustion engine using accelerometers
US7200487B2 (en) * 2003-06-30 2007-04-03 Westport Power Inc. System and method for processing an accelerometer signal to assist in combustion quality control in an internal combustion engine
CN100478554C (zh) * 2003-06-30 2009-04-15 韦斯特波特动力股份有限公司 利用处理过的加速度计信号控制内燃机燃烧的方法
CA2444163C (fr) * 2003-10-01 2007-01-09 Westport Research Inc. Methode et appareil de controle de la qualite de la combustion dans un moteur a combustion interne a gaz
EP1602814A3 (fr) * 2004-06-04 2012-05-23 Nissan Motor Co., Ltd. Dispositif et méthode de commande pour moteur à combustion interne
US7444231B2 (en) * 2004-11-18 2008-10-28 Westport Power Inc. Method of mounting an accelerometer on an internal combustion engine and increasing signal-to-noise ratio
FR2924219B1 (fr) 2007-11-22 2009-12-25 Siemens Vdo Automotive Procede de determination d'une valeur representative de la pression dans une chambre de combustion d'un moteur a combustion interne.
CA2673216C (fr) * 2009-07-31 2011-05-03 Westport Power Inc. Methode et appareillage de reconstitution de la pression dans les cylindres et de correction de la chute du signal
DE102013221993A1 (de) * 2013-10-29 2015-04-30 Robert Bosch Gmbh Verfahren und Vorrichtung zur Erkennung eines Klopfens einer Brennkraftmaschine, vorzugsweise eines Benzinmotors
KR101628106B1 (ko) * 2014-10-20 2016-06-08 현대자동차 주식회사 연소압 센서를 이용한 엔진 제어 방법 및 시스템
GB2547879B (en) 2015-12-23 2021-02-10 Cummins Inc Methods and apparatuses for combustion diagnosis and control of internal combustion engines using accelerometers

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US4211194A (en) * 1976-11-10 1980-07-08 Nippon Soken, Inc. Ignition system for internal combustion engines
JPS5535136A (en) * 1978-09-01 1980-03-12 Nippon Soken Inc Ignition timing control system for internal combustion engine
US4513717A (en) * 1982-03-18 1985-04-30 Toyota Jidosha Kabushiki Kaisha Ignition timing control device of an internal combustion engine
DE3319458A1 (de) * 1983-05-28 1984-11-29 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und vorrichtung zur erkennung des klopfens einer brennkraftmaschine
DE3346369A1 (de) * 1983-12-22 1985-07-11 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und vorrichtung zur erkennung der selbstentzuendungsschwelle in brennkraftmaschinen
JPS6114479A (ja) * 1984-06-29 1986-01-22 Nissan Motor Co Ltd 多気筒内燃機関の点火時期制御装置
JPS6341669A (ja) * 1986-08-08 1988-02-22 Nippon Denso Co Ltd 内燃機関用ノツキング制御装置
JPH0737789B2 (ja) 1988-10-17 1995-04-26 株式会社日立製作所 複数気筒エンジンの電子式制御装置
JP2948828B2 (ja) * 1989-04-14 1999-09-13 富士重工業株式会社 エンジンのノック検出装置
DE3933947C1 (en) * 1989-10-11 1991-01-03 Battelle Motor- Und Fahrzeugtechnik Gmbh, 6000 Frankfurt, De Combustion pressure determn. method for petrol-diesel engine - using acceleration sensors fitted at crankshaft bearings of engine in cylinder axial direction
US5402675A (en) * 1990-01-26 1995-04-04 Robert Bosch Gmbh Method for recognizing the power stroke of a four-stroke engine
JPH03290043A (ja) * 1990-04-04 1991-12-19 Mitsubishi Electric Corp 内燃機関の制御装置
DE4341796A1 (de) * 1993-12-08 1995-09-14 Bosch Gmbh Robert Verfahren zur Regelung der Verbrennung im Brennraum einer Brennkraftmaschine
JPH08232820A (ja) * 1995-02-22 1996-09-10 Unisia Jecs Corp 内燃機関の燃焼状態検出装置及びその装置を利用した内燃機関の制御装置

Non-Patent Citations (1)

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Title
See references of WO9913217A1 *

Also Published As

Publication number Publication date
US6408819B1 (en) 2002-06-25
DE19739085A1 (de) 1999-03-11
WO1999013217A1 (fr) 1999-03-18
KR20010013465A (fr) 2001-02-26
JP2001515990A (ja) 2001-09-25

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