EP1554482A1 - Procede et dispositif pour reguler un moteur a combustion interne - Google Patents

Procede et dispositif pour reguler un moteur a combustion interne

Info

Publication number
EP1554482A1
EP1554482A1 EP03809696A EP03809696A EP1554482A1 EP 1554482 A1 EP1554482 A1 EP 1554482A1 EP 03809696 A EP03809696 A EP 03809696A EP 03809696 A EP03809696 A EP 03809696A EP 1554482 A1 EP1554482 A1 EP 1554482A1
Authority
EP
European Patent Office
Prior art keywords
fuel
actuator
controlling
determined
correction values
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Withdrawn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
EP03809696A
Other languages
German (de)
English (en)
Inventor
Bruno Zanetti
Michael Neuner
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 EP1554482A1 publication Critical patent/EP1554482A1/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Withdrawn legal-status Critical Current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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2432—Methods of calibration
    • F02D41/2435—Methods of calibration characterised by the writing medium, e.g. bar code
    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2464—Characteristics of actuators
    • F02D41/2467—Characteristics of actuators for 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
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • 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 and a device for controlling an internal combustion engine, in particular for controlling the amount of fuel injected.
  • a quantity characterizing the fuel quantity is specified on the basis of operating parameters.
  • the quantity characterizing the fuel quantity is preferably the quantity of fuel, the activation period for an actuator or another quantity that characterizes the quantity of fuel to be injected, such as the torque. Based on this quantity characterizing the fuel quantity, control signals for one or more actuators that influence the fuel metering are specified.
  • Pump-nozzle units in which the pressure build-up and the control of the injected fuel quantity take place in a structural unit, or pump-line-nozzle systems are used in particular as actuators.
  • an injector can also be used as an actuator, in which the fuel is made available to the injector under high pressure and the injector merely controls the metering of fuel.
  • Such actuators usually have tolerances. This means that different injectors meter different amounts of fuel with the same control signal. Furthermore, the tolerances can cause different amounts of fuel to be metered under the same operating conditions with the same control signal.
  • Tolerances in particular in the area of the actuators, can be significantly reduced by starting from the speed, a quantity that characterizes the fuel quantity and a quantity that characterizes the start of delivery, a correction value for the correction that is predefined for the quantity that characterizes the fuel quantity. This results in a much more precise fuel metering and thus lower emissions.
  • the invention is explained below with reference to the embodiment shown in the drawing.
  • the single figure shows a block diagram of the device according to the invention.
  • a quantity specification 100 specifies a quantity QK that characterizes the fuel quantity to be injected. This usually leads to a control specification 110, which converts this signal into control signals for controlling an actuator 120. Corresponding methods and devices are known and are usually implemented in engine control units.
  • the output signal QK of the quantity specification, the output signal N of a first sensor 130, the output signal FB of a delivery start control 135 arrive at an adjustment map 140.
  • the output signal of the adjustment map 140 and the output signal SW of a threshold value entry 150 reach a minimum selection 160.
  • the output signal of the minimum selection 160 arrives to a maximum selection 170, at the second input of which there is the output signal of a change of sign 180, which is also supplied with the signal SW of the threshold value specification 150.
  • the output signal K of the maximum selection 170 is applied to a node 105, at the second input of which the output signal of the quantity specification 100 is present. With the output signal QKK of node 105 is then a Actuated control input 110, which in turn controls the actuator 120 accordingly.
  • Correction values K with which the fuel quantity QK to be injected is corrected, are stored in the adjustment map 140 as a function of various variables. This correction is carried out in such a way that tolerances of the individual actuators are compensated for, i. H. Correction values K are predefined in such a way that all actuators measure the same amount of fuel with the same signal of the quantity specification. Furthermore, the correction values K are predetermined such that an actuator, under the same operating conditions, in particular at the same speed, at the same start of delivery and with the same output signal QK, meter the same amount of fuel into the quantity specification.
  • a signal that characterizes the start of delivery is also used to specify the correction value K.
  • This is particularly advantageous in systems in which the start of delivery influences the amount of fuel to be injected. This is the case in particular with so-called pump-nozzle and / or with so-called pump-line-nozzle systems.
  • a signal which indicates the angular position of the crankshaft or the camshaft, at which the injection begins, is preferably used as the signal which characterizes the start of delivery.
  • signals can also be used which indicate the start of actuation of the actuator.
  • a torque variable instead of the fuel quantity QK to be injected, a torque variable, a signal that characterizes the actuation duration or another signal that characterizes the fuel quantity to be injected can alternatively be used.
  • an adjustment characteristic map 140 is assigned to each actuator, ie each pump-nozzle system. It is provided that the adjustment map is determined after the actuator has been manufactured. The data determined in this way are then assigned to the actuator in a suitable manner and when the actuator is started up for the first time in the control device for controlling the internal combustion engine read in and stored in a suitable manner. The correction according to the invention is then carried out during operation on the basis of these stored values.
  • the complete map can be determined, assigned to the actuator and then saved.
  • the remaining map values are then determined using a suitable method based on these individual correction values.
  • the calculation is carried out continuously. This procedure has the advantage that only a few values have to be determined and assigned to the actuator.
  • the assignment of the data to the actuator can be designed differently. It can e.g. B. be provided that the actuator and a data carrier in which the data are written form a structural unit. On the other hand, it can be provided that the actuator and a data carrier, which contains an identification number, form a structural unit and that data is then selected on the basis of this identification number, which data is transmitted by means of another data carrier and / or a transmission means and then supplied to the control unit.
  • the output signals of the adjustment map are limited to maximum and minimum permissible values.
  • the minimum selection 160 and the maximum selection 170 are provided.
  • the threshold value specification 150 specifies a threshold value which is fed directly to the minimum selection and, with an inverted sign, to the maximum selection 170. The result of this is that the output signal of the adjustment map is limited to a maximum amount by the minimum selection 160 and the maximum selection 170. This is particularly advantageous if the values of the comparison map are calculated on the basis of a few test points. This can be the case where very large or very small correction values occur due to inaccuracies in the calculation and other effects that should not be taken into account.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour réguler un moteur à combustion interne, notamment pour réguler la quantité de carburant injectée. Une grandeur caractérisant la quantité de carburant est prédéterminée à partir de caractéristiques de fonctionnement. Des signaux de commande destinés à un organe de régulation sont prédéterminés à partir de ladite grandeur. Une valeur de correction servant à corriger la grandeur caractérisant la quantité de carburant est prédéterminée à partir du régime, de la grandeur caractérisant la quantité de carburant et d'une grandeur caractérisant le début de l'acheminement du carburant.
EP03809696A 2002-10-17 2003-07-10 Procede et dispositif pour reguler un moteur a combustion interne Withdrawn EP1554482A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10248603A DE10248603A1 (de) 2002-10-17 2002-10-17 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE10248603 2002-10-17
PCT/DE2003/002318 WO2004040114A1 (fr) 2002-10-17 2003-07-10 Procede et dispositif pour reguler un moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1554482A1 true EP1554482A1 (fr) 2005-07-20

Family

ID=32049402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03809696A Withdrawn EP1554482A1 (fr) 2002-10-17 2003-07-10 Procede et dispositif pour reguler un moteur a combustion interne

Country Status (5)

Country Link
US (1) US7302336B2 (fr)
EP (1) EP1554482A1 (fr)
CN (1) CN100412341C (fr)
DE (1) DE10248603A1 (fr)
WO (1) WO2004040114A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005031591B4 (de) * 2005-07-06 2015-11-05 Man Diesel & Turbo Se Verfahren zum Betreiben einer Brennkraftmaschine
DE102006002738A1 (de) * 2006-01-20 2007-08-02 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
US20090025684A1 (en) * 2007-07-27 2009-01-29 Wolfgang Daum System, method and computer readable media for controlling at least one fuel delivery characteristic during a combustion event within an engine
DE102007053403B4 (de) * 2007-11-09 2016-06-09 Continental Automotive Gmbh Verfahren und Vorrichtung zum Bestimmen einer schwingungsoptimierten Einstellung einer Einspritzvorrichtung
DE102008043165B4 (de) * 2008-10-24 2020-08-06 Robert Bosch Gmbh Verfahren und Vorrichtung zur Kalibrierung der Voreinspritzmenge einer Brennkraftmaschine, insbesondere eines Kraftfahrzeugs

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6445942U (fr) * 1987-09-16 1989-03-22
JPH0233432A (ja) * 1988-07-21 1990-02-02 Fujitsu Ten Ltd 内燃機関の燃料噴射量の制御方法
DE4031368A1 (de) 1990-10-04 1992-04-09 Bosch Gmbh Robert Steuersystem fuer eine dieselbrennkraftmaschine
JP2745898B2 (ja) * 1991-10-16 1998-04-28 日産自動車株式会社 内燃機関の出力制御装置
DE4215581B4 (de) * 1992-05-12 2004-05-06 Robert Bosch Gmbh System zur Steuerung einer magnetventilgesteuerten Kraftstoffzumeßeinrichtung
KR100407297B1 (ko) * 1994-12-30 2004-05-31 혼다 기켄 고교 가부시키가이샤 내연기관의연료분사제어장치
JP3669017B2 (ja) 1995-09-21 2005-07-06 三菱ふそうトラック・バス株式会社 蓄圧式燃料噴射制御装置
JP3767875B2 (ja) * 1997-11-13 2006-04-19 株式会社小松製作所 エンジンの異常検出装置および異常検出方法
DE10056477B9 (de) 1999-11-17 2016-03-03 Denso Corporation Brennstoffeinspritzvorrichtung für eine Brennkraftmaschine
JP3511492B2 (ja) * 1999-12-14 2004-03-29 三菱電機株式会社 筒内噴射エンジンの燃料噴射制御装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004040114A1 *

Also Published As

Publication number Publication date
US20060122764A1 (en) 2006-06-08
CN1688802A (zh) 2005-10-26
DE10248603A1 (de) 2004-04-29
WO2004040114A1 (fr) 2004-05-13
US7302336B2 (en) 2007-11-27
CN100412341C (zh) 2008-08-20

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