EP0293571A3 - Regulation method for the air to fuel ratio of a combustion engine - Google Patents

Regulation method for the air to fuel ratio of a combustion engine Download PDF

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Publication number
EP0293571A3
EP0293571A3 EP88105140A EP88105140A EP0293571A3 EP 0293571 A3 EP0293571 A3 EP 0293571A3 EP 88105140 A EP88105140 A EP 88105140A EP 88105140 A EP88105140 A EP 88105140A EP 0293571 A3 EP0293571 A3 EP 0293571A3
Authority
EP
European Patent Office
Prior art keywords
combustion engine
controller
internal combustion
output voltage
variable
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
EP88105140A
Other languages
German (de)
French (fr)
Other versions
EP0293571A2 (en
Inventor
Helmut Fleischer
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO 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
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0293571A2 publication Critical patent/EP0293571A2/en
Publication of EP0293571A3 publication Critical patent/EP0293571A3/en
Ceased 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1483—Proportional component

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

Bei einem Verfahren zur Regelung des Kraftstoff-Luft-­ Verhältnisses einer Brennkraftmaschine, wobei die Ausgangsspannung einer Sauerstoffmeßsonde, die im Abgaskanal der Brennkraftmaschine angeordnet ist, einem Regler zugeführt wird und der Regler eine Stellgröße für das Kraftsoff-Luft-Verhältnis abgibt, werden dem einen Mikroprozessor umfassenden Regler ferner der Last und der Drehzahl der Brennkraft­ maschine entsprechende Signale zugeführt. Jeweils nach einem Sprung der Ausgangsspannung der Sauer­ stoffmeßsonde erfolgt ein Sprung der Stellgröße. Die Stellgröße wird durch Addition eines vorgegebenen Wertes und eines zusätzlichen Wertes gebildet. Der zusätzliche Wert wird jeweils durch Multiplikation eines von der Last und von der Drehzahl abhängigen Koeffizienten mit einer Zählvariablen abgeleitet, und die Zählvariable wird durch den jeweiligen Sprung der Ausgangsspannung der Sauerstoffmeßsonde auf 0 gesetzt. In a method for regulating the fuel-air Ratio of an internal combustion engine, the Output voltage of an oxygen sensor, which in Exhaust gas duct of the internal combustion engine is arranged is fed to a controller and the controller a Outputs the manipulated variable for the fuel-air ratio, become the controller comprising a microprocessor also the load and the speed of the internal combustion engine appropriate signals supplied to the machine. Each after a jump in the output voltage of the Sauer The substance measurement probe jumps in the manipulated variable. The The manipulated variable is given by adding a predetermined one Value and an additional value. The additional value is obtained by multiplication one depending on the load and the speed Coefficients derived with a count variable, and the counter variable is determined by the respective Jump in the output voltage of the oxygen measuring probe set to 0.

EP88105140A 1987-06-04 1988-03-30 Regulation method for the air to fuel ratio of a combustion engine Ceased EP0293571A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3718720 1987-06-04
DE19873718720 DE3718720A1 (en) 1987-06-04 1987-06-04 METHOD FOR REGULATING THE FUEL-AIR RATIO OF AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
EP0293571A2 EP0293571A2 (en) 1988-12-07
EP0293571A3 true EP0293571A3 (en) 1989-01-25

Family

ID=6329046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105140A Ceased EP0293571A3 (en) 1987-06-04 1988-03-30 Regulation method for the air to fuel ratio of a combustion engine

Country Status (2)

Country Link
EP (1) EP0293571A3 (en)
DE (1) DE3718720A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461258A (en) * 1980-10-18 1984-07-24 Robert Bosch Gmbh Regulating device for a fuel metering system of an internal combustion engine
EP0189185A2 (en) * 1985-01-23 1986-07-30 Hitachi, Ltd. Method of controlling air-fuel ratio

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461258A (en) * 1980-10-18 1984-07-24 Robert Bosch Gmbh Regulating device for a fuel metering system of an internal combustion engine
EP0189185A2 (en) * 1985-01-23 1986-07-30 Hitachi, Ltd. Method of controlling air-fuel ratio

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 216 (M-168)[1094], 29. Oktober 1982; & JP-A-57 122 145 (NISSAN JIDOSHA K.K.) 29-07-1982 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 264 (M-423)[1987], 22. Oktober 1985; & JP-A-60 111 038 (TOYOTA JIDOSHA K.K.) 17-06-1985 *

Also Published As

Publication number Publication date
DE3718720A1 (en) 1988-12-22
EP0293571A2 (en) 1988-12-07

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