ES2032080T3 - PROCEDURE FOR REGULATING THE FUEL-AIR RATIO OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE, OF THE CLOSED LOOP TYPE, WITHOUT INTERVENTION OF PHYSICAL MEASUREMENT OF THE FUEL-AIR RATIO. - Google Patents

PROCEDURE FOR REGULATING THE FUEL-AIR RATIO OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE, OF THE CLOSED LOOP TYPE, WITHOUT INTERVENTION OF PHYSICAL MEASUREMENT OF THE FUEL-AIR RATIO.

Info

Publication number
ES2032080T3
ES2032080T3 ES89113602T ES89113602T ES2032080T3 ES 2032080 T3 ES2032080 T3 ES 2032080T3 ES 89113602 T ES89113602 T ES 89113602T ES 89113602 T ES89113602 T ES 89113602T ES 2032080 T3 ES2032080 T3 ES 2032080T3
Authority
ES
Spain
Prior art keywords
fuel
air
air ratio
intervention
feeds
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
ES89113602T
Other languages
Spanish (es)
Inventor
Mariano Sans
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 ES2032080T3 publication Critical patent/ES2032080T3/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
    • F02D41/02—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
    • F02D41/1458—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 determination means using an estimation
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system

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

EL PROCESO INCLUYE EL DETERMINAR UN MOMENTO DE INYECCION TI PARA EL CONTROL DE LA APERTURA DE UN INYECTOR DE COMBUSTIBLE, AÑADIENDO A UN COMPONENTE ESTATICO TIS DE ESE MOMENTO UNA CORRECCION DINAMICA MUESTREADA D TID N, CUYA MEDICION VIENE DADA POR UNA COMBINACION LINEAL DE AL MENOS UNO DE LOS VALORES D TID N-K DE LAS CORRECCIONES DINAMICAS HECHAS EN LOS MOMENTOS INMEDIATAMENTE ANTERIORES AL MUESTREO Y DE LAS DIFERENCIAS EN LA PROPORCION DE COMBUSTIBLE/AIRE ESTIMADAS EN-K EN RELACION CON UNA PROPORCION NOMINAL DE COMBUSTIBLE/AIRE TC, QUE ES MEDIDA EN EL MOMENTO ACTUAL Y EN UN MOMENTO INMEDIATAMENTE ANTERIOR AL MUESTREO. EL INVENTO SE UTILIZA PARA REGULAR LA PROPORCION COMBUSTIBLE/AIRE EN CASO DE QUE SE PRODUZCA UN FALLO EN EL SENSOR DE OXIGENO SITUADO EN LOS GASES DE ESCAPE DEL MOTOR.THE PROCESS INCLUDES DETERMINING A TI INJECTION MOMENT FOR CONTROLLING THE OPENING OF A FUEL INJECTOR, ADDING TO A STATIC TIS COMPONENT FROM THAT MOMENT A DYNAMIC CORRECTION SHOWN OF DID N, WHICH MEASURE IS GIVEN BY A COMBINATION ONE OF THE D TID NK VALUES OF THE DYNAMIC CORRECTIONS MADE AT THE TIMES IMMEDIATELY PRIOR TO SAMPLING AND OF THE DIFFERENCES IN THE ESTIMATED FUEL / AIR PROPORTION IN RELATION TO A NOMINAL PROPORTION OF FUEL / AIR TC, THE CURRENT TIME AND AT A TIME IMMEDIATELY PRIOR TO SAMPLING. THE INVENTION IS USED TO REGULATE THE FUEL / AIR RATIO IN THE EVENT OF A FAILURE IN THE OXYGEN SENSOR LOCATED IN THE EXHAUST GASES OF THE ENGINE.

ES89113602T 1988-07-27 1989-07-24 PROCEDURE FOR REGULATING THE FUEL-AIR RATIO OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE, OF THE CLOSED LOOP TYPE, WITHOUT INTERVENTION OF PHYSICAL MEASUREMENT OF THE FUEL-AIR RATIO. Expired - Lifetime ES2032080T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8810114A FR2634824B1 (en) 1988-07-27 1988-07-27 METHOD FOR REGULATING THE WEALTH OF AN AIR-FUEL MIXTURE FOR SUPPLYING AN INTERNAL COMBUSTION ENGINE, OF THE CLOSED LOOP TYPE, WITHOUT EXPLOITATION OF PHYSICAL WEALTH MEASUREMENT

Publications (1)

Publication Number Publication Date
ES2032080T3 true ES2032080T3 (en) 1993-01-01

Family

ID=9368822

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89113602T Expired - Lifetime ES2032080T3 (en) 1988-07-27 1989-07-24 PROCEDURE FOR REGULATING THE FUEL-AIR RATIO OF AN AIR / FUEL MIXTURE THAT FEEDS AN INTERNAL COMBUSTION ENGINE, OF THE CLOSED LOOP TYPE, WITHOUT INTERVENTION OF PHYSICAL MEASUREMENT OF THE FUEL-AIR RATIO.

Country Status (4)

Country Link
EP (1) EP0352705B1 (en)
DE (1) DE68901822T2 (en)
ES (1) ES2032080T3 (en)
FR (1) FR2634824B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445339A1 (en) * 1990-03-09 1991-09-11 Siemens Aktiengesellschaft Engine idling control system
DE4020654C2 (en) * 1990-06-29 1999-12-16 Bosch Gmbh Robert Control method in connection with an internal combustion engine and / or a motor vehicle and control device for carrying out the control method
EP0553570B1 (en) * 1991-12-27 1998-04-22 Honda Giken Kogyo Kabushiki Kaisha Method for detecting and controlling air-fuel ratio in internal combustion engines
US5758490A (en) * 1994-12-30 1998-06-02 Honda Giken Kogyo Kabushiki Kaisha Fuel metering control system for internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5614836A (en) * 1979-07-13 1981-02-13 Hitachi Ltd Controlling device for internal combustion engine
JPS59126047A (en) * 1982-12-30 1984-07-20 Mazda Motor Corp Air-fuel ratio controlling apparatus for engine
US4562814A (en) * 1983-02-04 1986-01-07 Nissan Motor Company, Limited System and method for controlling fuel supply to an internal combustion engine

Also Published As

Publication number Publication date
EP0352705B1 (en) 1992-06-17
FR2634824A1 (en) 1990-02-02
DE68901822T2 (en) 1992-12-17
FR2634824B1 (en) 1993-03-19
EP0352705A1 (en) 1990-01-31
DE68901822D1 (en) 1992-07-23

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