ES2030565T3 - PROCEDURE AND DEVICE FOR REGULATING THE WEALTH OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE. - Google Patents

PROCEDURE AND DEVICE FOR REGULATING THE WEALTH OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE.

Info

Publication number
ES2030565T3
ES2030565T3 ES89113601T ES89113601T ES2030565T3 ES 2030565 T3 ES2030565 T3 ES 2030565T3 ES 89113601 T ES89113601 T ES 89113601T ES 89113601 T ES89113601 T ES 89113601T ES 2030565 T3 ES2030565 T3 ES 2030565T3
Authority
ES
Spain
Prior art keywords
wealth
engine
sampling
air
fuel mixture
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
ES89113601T
Other languages
Spanish (es)
Inventor
Mariano Sana
Francois Marcel Charles Roche
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2030565T3 publication Critical patent/ES2030565T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D41/24—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
    • F02D41/2454—Learning of the air-fuel ratio control
    • F02D41/2458—Learning of the air-fuel ratio control with an additional dither signal
    • 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
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen

Abstract

EL DISPOSITIVO, CONFORME AL INVENTO, CONSTA DE UN SENSOR DE OXIGENO SITUADO EN LA CORRIENTE DE LOS GASES DE ESCAPE DEL MOTOR (2) PARA SUMINISTRAR UNA SEÑAL BIESTABLE SL QUE REPRESENTA LA RIQUEZA DE LA MEZCLA AIRE/COMBUSTIBLE EN EL MOTOR. EN LA DERIVACION DIRECTA DEL CIRCUITO HAY UN MUESTREADOR (4) Y UN CORRECTOR (5) QUE SUMINISTRA UNA SEÑAL DTID PARA CORREGIR UN TIEMPO DE INYECCION ESTIMADO (TIS), SIENDO CONTROLADA LA SUMA (TI) DE ESTAS SEÑALES, QUE ES MUESTREADA (EN 7) ANTES DE LA APERTURA DE UN INYECTOR DE COMBUSTIBLE QUE FORMA PARTE DEL MOTOR (2). DE ACUERDO CON EL INVENTO, EN EL MOMENTO DEL MUESTREO, EL CORRECTOR (5) SUMINISTRA UNA CORRECCION ADICIONAL DTIDN QUE OBEDECE A UNA LEY RECURRENTE QUE TOMA LA FORMA DE UNA COMBINACION LINEAL DE AL MENOS UNO DE LOS VALORE DTIDN-K DE LAS CORRECCIONES REALIADAS EN LOS MOMENTOS INMEDIATAMENTE ANTERIORES AL MUESTREO Y DE LOS VALORE MUESTREADOS DE LA SEÑAL SL EN AL MENOS UNO DE ESTOS MOMENTOS INMEDIATAMENTE ANTERIORES AL MUESTREO Y EN EL MOMENTO ACTUAL.THE DEVICE, ACCORDING TO THE INVENTION, CONSISTS OF AN OXYGEN SENSOR LOCATED IN THE CURRENT OF THE EXHAUST GASES FROM THE ENGINE (2) TO SUPPLY A SLOPE BISTABLE SIGNAL THAT REPRESENTS THE WEALTH OF THE AIR / FUEL MIXTURE IN THE ENGINE. IN THE DIRECT BYPASS OF THE CIRCUIT THERE IS A SAMPLER (4) AND A CORRECTOR (5) THAT SUPPLIES A DTID SIGNAL TO CORRECT AN ESTIMATED INJECTION TIME (TIS), THE SUM (TI) OF THESE SIGNALS BEING CONTROLLED (IN 7) BEFORE THE OPENING OF A FUEL INJECTOR THAT IS PART OF THE ENGINE (2). IN ACCORDANCE WITH THE INVENTION, AT THE TIME OF SAMPLING, THE CORRECTOR (5) PROVIDES AN ADDITIONAL CORRECTION DTIDN THAT OBEYS A RECURRING LAW THAT TAKES THE FORM OF A LINEAR COMBINATION OF AT LEAST ONE OF THE DTIDN-K VALUES OF THE CORRECTIONS MADE IN THE MOMENTS IMMEDIATELY PRIOR TO THE SAMPLING AND OF THE SAMPLE VALUES OF THE SIGNAL SL IN AT LEAST ONE OF THESE MOMENTS IMMEDIATELY PRIOR TO THE SAMPLING AND AT THE PRESENT TIME.

ES89113601T 1988-07-27 1989-07-24 PROCEDURE AND DEVICE FOR REGULATING THE WEALTH OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE. Expired - Lifetime ES2030565T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8810113A FR2634823B1 (en) 1988-07-27 1988-07-27 METHOD AND DEVICE FOR REGULATING THE WEALTH OF AN AIR-FUEL MIXTURE FOR AN INTERNAL COMBUSTION ENGINE

Publications (1)

Publication Number Publication Date
ES2030565T3 true ES2030565T3 (en) 1992-11-01

Family

ID=9368821

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89113601T Expired - Lifetime ES2030565T3 (en) 1988-07-27 1989-07-24 PROCEDURE AND DEVICE FOR REGULATING THE WEALTH OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE.

Country Status (4)

Country Link
EP (1) EP0352704B1 (en)
DE (1) DE68901364D1 (en)
ES (1) ES2030565T3 (en)
FR (1) FR2634823B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3065992A1 (en) * 2017-05-03 2018-11-09 Peugeot Citroen Automobiles Sa METHOD OF FILTERING AND CORRECTING OSCILLATIONS OF A WEALTH SIGNAL FROM A PROBE OUTSIDE AN ENGINE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122811A (en) * 1977-07-25 1978-10-31 General Motors Corporation Digital closed loop fuel control system
US4528962A (en) * 1981-12-11 1985-07-16 Robert Bosch Gmbh Method and apparatus for lambda regulation in an internal combustion engine
JPS58190532A (en) * 1982-04-30 1983-11-07 Nissan Motor Co Ltd Air-fuel ratio return control method for internal- combustion engine
JPS58195044A (en) * 1982-05-07 1983-11-14 Mitsubishi Electric Corp Air-fuel ratio controlling method

Also Published As

Publication number Publication date
EP0352704A1 (en) 1990-01-31
FR2634823A1 (en) 1990-02-02
FR2634823B1 (en) 1990-11-23
EP0352704B1 (en) 1992-04-29
DE68901364D1 (en) 1992-06-04

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