EP0175162A2 - Dispositif électronique pour générer un signal de dosage de carburant pour un moteur à combustion - Google Patents

Dispositif électronique pour générer un signal de dosage de carburant pour un moteur à combustion Download PDF

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Publication number
EP0175162A2
EP0175162A2 EP85110553A EP85110553A EP0175162A2 EP 0175162 A2 EP0175162 A2 EP 0175162A2 EP 85110553 A EP85110553 A EP 85110553A EP 85110553 A EP85110553 A EP 85110553A EP 0175162 A2 EP0175162 A2 EP 0175162A2
Authority
EP
European Patent Office
Prior art keywords
electronic device
combustion engine
battery voltage
correction
generating
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.)
Ceased
Application number
EP85110553A
Other languages
German (de)
English (en)
Other versions
EP0175162A3 (fr
Inventor
Albrecht Dipl.-Ing. Clement
Gustav Virgilio
Hugo Weller
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 EP0175162A2 publication Critical patent/EP0175162A2/fr
Publication of EP0175162A3 publication Critical patent/EP0175162A3/fr
Ceased legal-status Critical Current

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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
    • F02D41/24—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
    • 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
    • F02D41/3005—Details not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
    • F02D2200/503—Battery correction, i.e. corrections as a function of the state of the battery, its output or its type

Definitions

  • the invention relates to an electronic device for generating a fuel metering signal according to the preamble of the main claim.
  • a basic injection signal is formed as a function of speed and load, which is then corrected, inter alia, as a function of the battery voltage. This is because the pull-in time of injection valves depends very much on the battery voltage. A resulting delay in the response of the injection valves would result in an injection duration that is too short and thus an injection quantity that is too small without electronic voltage correction. The lower the battery voltage, the less fuel the internal combustion engine would get.
  • the additively acting voltage correction is generated by means of a characteristic curve and is regarded as a separate correction variable.
  • One of the objects of the invention is therefore to provide a device for the battery voltage correction of fuel metering signals, which provides optimum values over the entire spectrum of the operating parameters.
  • the electronic device for generating a fuel metering signal with the features of the main claim, it is possible to carry out the battery voltage correction very precisely and thus actually to supply the desired amount of fuel to the engine. With regard to low pollutant emissions and optimal engine operation, the invention has proven to be extremely efficient.
  • FIG. 1 shows a flow diagram for a Computer-controlled implementation of the invention
  • FIG. 2 is a block diagram for explaining the invention using a circuit example.
  • the exemplary embodiments relate to the devices according to the invention in connection with an internal combustion engine with spark ignition and intermittent injection.
  • FIG. 1 shows roughly the calculation sequence of an injection time signal formed according to the invention.
  • the program should start at A (10).
  • a block 11 follows, which relates to the reading in of the individual control variables xn such as speed, load and temperature.
  • Block 12 is followed by the calculation of a basic injection time tio depending on the control variables xn.
  • a correction variable tv as a function g of the battery voltage and other variables is formed in the subsequent block 13.
  • the program cycle is concluded with its "end" (15).
  • the correction variable is formed depending on the battery voltage UBatt and including at least one further variable y.
  • This is implemented, for example, by means of a map for the correction variable, with at least one dimension of the correction variable being the battery voltage.
  • This arrangement ensures that the battery voltage correction does not depend solely on the battery voltage, but on at least one further variable can be coordinated. Compared to the pure characteristic control according to the prior art, a significantly refined coordination is possible.
  • the speed has resulted for the further independent variable y when calculating the correction value tv.
  • Good results can also be achieved if the air mass throughput or the basic injection signal tio is used as the variable y, which ultimately corresponds to the quotient of the load and speed (corrected if necessary via temperature values).
  • FIG. 2 shows at 20 a basic pulse generator stage that receives input variables from a temperature sensor 21, a speed sensor 22 and a load sensor 23.
  • the basic pulse generator stage 20 is followed by a correction stage 24 and finally a symbolically illustrated injection valve 25.
  • a correction signal generator stage is designated by 26, which receives a battery voltage signal as a control variable via a control input 27 and, depending on the selection, at least one of the output variables of the sensors 21 to 23 or the basic injection control stage 20.
  • the correction injection signal can be corrected additively and / or multiplicatively in the correction stage 24.
  • the correction signal generator stage 26 consists of a three-dimensional map with the independently variable battery voltage and one of the variables speed, load, basic injection time or temperature.
  • a higher-dimensional map in the correction signal generator stage 25 is possible. It only has to be ensured that the correction variable is influenced not only by the battery voltage, but also by further operating parameters.

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  • 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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP85110553A 1984-09-19 1985-08-22 Dispositif électronique pour générer un signal de dosage de carburant pour un moteur à combustion Ceased EP0175162A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843434339 DE3434339A1 (de) 1984-09-19 1984-09-19 Elektronische einrichtung zum erzeugen eines kraftstoffzumesssignals fuer eine brennkraftmaschine
DE3434339 1984-09-19

Publications (2)

Publication Number Publication Date
EP0175162A2 true EP0175162A2 (fr) 1986-03-26
EP0175162A3 EP0175162A3 (fr) 1987-01-14

Family

ID=6245765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110553A Ceased EP0175162A3 (fr) 1984-09-19 1985-08-22 Dispositif électronique pour générer un signal de dosage de carburant pour un moteur à combustion

Country Status (4)

Country Link
US (1) US4643153A (fr)
EP (1) EP0175162A3 (fr)
JP (1) JPS6176732A (fr)
DE (1) DE3434339A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206485B1 (fr) * 1985-05-08 1990-04-11 Honda Giken Kogyo Kabushiki Kaisha Méthode de commande de l'alimentation en carburant par moteur à combustion interne au démarrage

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3445414A1 (de) * 1984-12-13 1986-06-19 Robert Bosch Gmbh, 7000 Stuttgart Elektronisch gesteuertes kraftstoffeinspritzsystem fuer eine brennkraftmaschine
DE3924353A1 (de) * 1989-07-22 1991-02-14 Prufrex Elektro App Steuerungssystem fuer den vergaser einer brennkraftmaschine
JPH03199667A (ja) * 1989-12-27 1991-08-30 Yamaha Motor Co Ltd ２サイクルエンジンの空気燃料噴射装置
US5279272A (en) * 1991-06-19 1994-01-18 Volkswagen Ag Method and apparatus for controlling fuel injection valves in an internal combustion engine
DE4120116A1 (de) * 1991-06-19 1992-12-24 Volkswagen Ag Verfahren und anordnung zur erzeugung von betaetigungsimpulsen fuer kraftstoffeinspritzventile einer brennkraftmaschine
US5474054A (en) * 1993-12-27 1995-12-12 Ford Motor Company Fuel injection control system with compensation for pressure and temperature effects on injector performance
CN103527338B (zh) * 2013-10-29 2016-03-16 潍柴动力股份有限公司 一种喷油修正方法及系统
JP6289579B1 (ja) 2016-10-20 2018-03-07 三菱電機株式会社 インジェクタ制御装置及びインジェクタ制御方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683871A (en) * 1970-07-17 1972-08-15 Gen Motors Corp Fuel supply system for an internal combustion engine providing voltage compensated cranking enrichment
US3896773A (en) * 1972-10-27 1975-07-29 Gen Motors Corp Electronic fuel injection system
US4184460A (en) * 1976-05-28 1980-01-22 Nippondenso Co., Ltd. Electronically-controlled fuel injection system
DE2700628A1 (de) * 1977-01-08 1978-07-20 Bosch Gmbh Robert Verfahren und vorrichtung zur korrektur der dauer von elektromagnetischen einspritzventilen zugefuehrten einspritzimpulsen in abhaengigkeit vom lastzustand
JPS57108427A (en) * 1980-12-26 1982-07-06 Nissan Motor Co Ltd Controller of delivery fuel from motor-driven fuel pump
JPS57146031A (en) * 1981-03-04 1982-09-09 Nissan Motor Co Ltd Method of supplying fuel upon starting in internal combustion engine
JPS5828537A (ja) * 1981-07-24 1983-02-19 Toyota Motor Corp 内燃機関の電子制御式燃料噴射方法および装置
JPS5828540A (ja) * 1981-07-24 1983-02-19 Toyota Motor Corp 内燃機関の電子制御式燃料噴射方法および装置
JPS5932626A (ja) * 1982-05-17 1984-02-22 Honda Motor Co Ltd 内燃エンジンの減速時燃料供給制御方法
US4543937A (en) * 1983-03-15 1985-10-01 Toyota Jidosha Kabushiki Kaisha Method and apparatus for controlling fuel injection rate in internal combustion engine
JPS60150450A (ja) * 1984-01-18 1985-08-08 Honda Motor Co Ltd 内燃エンジンのアイドル回転数フイ−ドバツク制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206485B1 (fr) * 1985-05-08 1990-04-11 Honda Giken Kogyo Kabushiki Kaisha Méthode de commande de l'alimentation en carburant par moteur à combustion interne au démarrage

Also Published As

Publication number Publication date
EP0175162A3 (fr) 1987-01-14
US4643153A (en) 1987-02-17
JPS6176732A (ja) 1986-04-19
DE3434339A1 (de) 1986-03-27

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