EP0391062B1 - Elektronischer Drehzahlregler für eine luftverdichtende Brennkraftmaschine - Google Patents

Elektronischer Drehzahlregler für eine luftverdichtende Brennkraftmaschine Download PDF

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Publication number
EP0391062B1
EP0391062B1 EP90103821A EP90103821A EP0391062B1 EP 0391062 B1 EP0391062 B1 EP 0391062B1 EP 90103821 A EP90103821 A EP 90103821A EP 90103821 A EP90103821 A EP 90103821A EP 0391062 B1 EP0391062 B1 EP 0391062B1
Authority
EP
European Patent Office
Prior art keywords
smoke
fuel
air
pressure
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.)
Expired - Lifetime
Application number
EP90103821A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0391062A2 (de
EP0391062A3 (de
Inventor
Gerhard Dr. Fränkle
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6377997&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0391062(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of EP0391062A2 publication Critical patent/EP0391062A2/de
Publication of EP0391062A3 publication Critical patent/EP0391062A3/de
Application granted granted Critical
Publication of EP0391062B1 publication Critical patent/EP0391062B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/007—Electric control of rotation speed controlling fuel supply
    • F02D31/009—Electric control of rotation speed controlling fuel supply for maximum speed control
    • 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/38—Control for minimising smoke emissions, e.g. by applying smoke limitations on the fuel injection amount

Definitions

  • the invention relates to an electronic speed controller for an air-compressing internal combustion engine, according to the features specified in the preamble of claim 1.
  • the exhaust gas temperature, the number of blackening (smoke) or the peak pressure is the limiting variable.
  • the limiting areas, such as the smoke limit are marked accordingly in the full-load quantity map ( Figure 13 of the document mentioned). Due to the exact adherence to the given smoke limit curves, the smoke emissions are compared to those with conventional designs without smoke-limiting measures decreased. Limiting the smoke limit does not result in the desired driving performance in high-altitude operation.
  • the invention is therefore based on the object of taking measures on the electronic speed controller by means of which the performance of the internal combustion engine can also be optimally used in height.
  • the smoke limit curve is increased in height depending on the operation, without penetrating into the area of the impermissible smoke emission, the optimum utilization of the performance of the internal combustion engine can be achieved for the operating state in each case.
  • the number of blackening that would otherwise normally decrease with the electronic system in high-altitude operation is therefore adapted to permissible values.
  • the lower blackening number or the visible blackening in high-altitude operation based on the same excess air for combustion is based on the fact that for the visibility of the blackening the same exhaust gas volume is measured and evaluated with regard to the particles. Based on the evaluated volume, the tested exhaust gas mass or its particle content is therefore smaller than at sea level due to the lower air density with increasing altitude, for which the allocation of the fuel and air mass for the same smoke is related in the known electronic control mentioned at the beginning.
  • the invention is explained in more detail using an exemplary embodiment shown in the drawing:
  • the electronic speed controller for air-compressing, self-igniting internal combustion engines the injected fuel mass is specified in a speed-specific manner as a function of the respective air mass.
  • the height socket is a signal generator, the signals of which are recorded by the electronic control unit and processed for the displacement of the smoke limit curve.
  • the absolute pressure meter which is present anyway, can be used to determine the air mass in the internal combustion engine, in order to determine the barometer reading for the displacement of the smoke limit curve. This can be done by storing the pressure curve over a longer period of time, e.g. 10 to 15 Minutes can be provided, in which the absolute ambient pressure is recorded again and again due to the unavoidable gas removal due to gear changes or other circumstances. By reading the minimum value, the smallest existing pressure in a period of approx. 15 minutes can be used as a measure of the shift in the smoke limit curve.

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)
EP90103821A 1989-04-06 1990-02-27 Elektronischer Drehzahlregler für eine luftverdichtende Brennkraftmaschine Expired - Lifetime EP0391062B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911145 1989-04-06
DE3911145A DE3911145C1 (enrdf_load_stackoverflow) 1989-04-06 1989-04-06

Publications (3)

Publication Number Publication Date
EP0391062A2 EP0391062A2 (de) 1990-10-10
EP0391062A3 EP0391062A3 (de) 1991-10-09
EP0391062B1 true EP0391062B1 (de) 1992-11-04

Family

ID=6377997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103821A Expired - Lifetime EP0391062B1 (de) 1989-04-06 1990-02-27 Elektronischer Drehzahlregler für eine luftverdichtende Brennkraftmaschine

Country Status (3)

Country Link
US (1) US5086739A (enrdf_load_stackoverflow)
EP (1) EP0391062B1 (enrdf_load_stackoverflow)
DE (1) DE3911145C1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7340339B1 (en) * 2003-02-14 2008-03-04 Caterpillar Inc. Power management system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117267A1 (de) * 1991-05-27 1992-12-03 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
US5375577A (en) * 1993-07-23 1994-12-27 Caterpillar Inc. Apparatus and method for controlling engine response versus exhaust smoke
US5539638A (en) * 1993-08-05 1996-07-23 Pavilion Technologies, Inc. Virtual emissions monitor for automobile
US6158416A (en) * 1998-11-16 2000-12-12 General Electric Company Reduced emissions elevated altitude speed control for diesel engines
JP2000345885A (ja) * 1999-05-31 2000-12-12 Isuzu Motors Ltd ディーゼルエンジンの燃料噴射制御装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544580Y2 (enrdf_load_stackoverflow) * 1973-06-23 1979-02-27
FR2278928A1 (fr) * 1973-10-30 1976-02-13 Sigma Diesel Perfectionnements aux dispositifs de commande du debit de combustible pour moteurs a combustion interne
DE2526148C2 (de) * 1975-06-12 1983-08-25 Robert Bosch Gmbh, 7000 Stuttgart Regeleinrichtung für die Kraftstoffzufuhr von Einspritzbrennkraftmaschinen
DE2747083A1 (de) * 1977-10-20 1979-05-03 Bosch Gmbh Robert Vorrichtung zur begrenzung der vollasteinspritzmenge bei einer aufgeladenen luftverdichtenden einspritzbrennkraftmaschine
US4368705A (en) * 1981-03-03 1983-01-18 Caterpillar Tractor Co. Engine control system
JPS59188041A (ja) * 1983-04-08 1984-10-25 Honda Motor Co Ltd 内燃エンジンの減速時燃料供給制御方法
US4562810A (en) * 1983-06-23 1986-01-07 Nippondenso Co., Ltd. Fuel injection pump
DE3400513A1 (de) * 1984-01-10 1985-07-18 Robert Bosch Gmbh, 7000 Stuttgart Vollastbegrenzung einer brennkraftmaschine
DE3710081A1 (de) * 1987-03-27 1988-10-06 Bosch Gmbh Robert Motorsteuerungssystem mit hoehenabhaengiger kraftstoffeinspritzung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7340339B1 (en) * 2003-02-14 2008-03-04 Caterpillar Inc. Power management system

Also Published As

Publication number Publication date
DE3911145C1 (enrdf_load_stackoverflow) 1990-04-26
EP0391062A2 (de) 1990-10-10
US5086739A (en) 1992-02-11
EP0391062A3 (de) 1991-10-09

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