ES2079696T3 - Sistema de control para un dispositivo de regulacion de la riqueza de la mezcla de combustible de un motor de combustion interna. - Google Patents

Sistema de control para un dispositivo de regulacion de la riqueza de la mezcla de combustible de un motor de combustion interna.

Info

Publication number
ES2079696T3
ES2079696T3 ES92101246T ES92101246T ES2079696T3 ES 2079696 T3 ES2079696 T3 ES 2079696T3 ES 92101246 T ES92101246 T ES 92101246T ES 92101246 T ES92101246 T ES 92101246T ES 2079696 T3 ES2079696 T3 ES 2079696T3
Authority
ES
Spain
Prior art keywords
earth
block
control system
signal
wealth
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
ES92101246T
Other languages
English (en)
Inventor
Pietro Nenzioni
Luca Biagini
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.)
Marelli Europe SpA
Original Assignee
Magneti Marelli SpA
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 Magneti Marelli SpA filed Critical Magneti Marelli SpA
Application granted granted Critical
Publication of ES2079696T3 publication Critical patent/ES2079696T3/es
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
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • 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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • F02D41/1476—Biasing of the sensor
    • 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
    • F02D41/1493—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/4065—Circuit arrangements specially adapted therefor
    • 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

UN SISTEMA QUE COMPRENDE: UN SENSOR (2) CONECTADO A UNA PRIMERA TOMA DE TIERRA (5) TENIENDO UN POTENCIAL ELECTRICO VARIABLE AFECTADO POR EL MOTOR Y POR CAMPOS ELECTROMAGNETICOS, CUYO SENSOR SUMINISTRA UNA SEÑAL COMO FUNCION DE LA CANTIDAD DE OXIGENO DETECTADO EN EL GAS DE ESCAPE; UN PRIMER BLOQUE (6), CONECTADO A LA PRIMERA TOMA DE TIERRA (5), PARA POLARIZAR EL SENSOR (2) A UN VOLTAJE DADO (+V1); UN SEGUNDO BLOQUE (18) PARA CONVERTIR LA SEÑAL DESDE EL PRIMER BLOQUE (6) EN UNA SEÑAL RELATIVA A UNA SEGUNDA TOMA DE TIERRA (21) TENIENDO UN POTENCIAL ELECTRICO CONSTANTE Y AISLADO EN RELACION CON LA PRIMERA TOMA DE TIERRA (5); UN SISTEMA DE CONTROL ELECTRONICO (23), CONECTADO A LA SEGUNDA TOMA DE TIERRA (21), PARA PROCESAR SEÑALES RELATIVAS A LAS CONDICIONES DE OPERACION DEL MOTOR, Y A LA SEÑAL DEL SEGUNDO BLOQUE (18); Y UN TERCER BLOQUE (24), HABILITADO POR EL SISTEMA DE CONTROL (23), PARA CONTROLAR LA REGULACION DE LA FUERZA DE LA MEZCLA.
ES92101246T 1991-01-29 1992-01-27 Sistema de control para un dispositivo de regulacion de la riqueza de la mezcla de combustible de un motor de combustion interna. Expired - Lifetime ES2079696T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910049A IT1245011B (it) 1991-01-29 1991-01-29 Sistema di comando di un dispositivo di regolazione del titolo di una miscela di carburante per un motore a combustione interna

Publications (1)

Publication Number Publication Date
ES2079696T3 true ES2079696T3 (es) 1996-01-16

Family

ID=11408829

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92101246T Expired - Lifetime ES2079696T3 (es) 1991-01-29 1992-01-27 Sistema de control para un dispositivo de regulacion de la riqueza de la mezcla de combustible de un motor de combustion interna.

Country Status (4)

Country Link
EP (1) EP0497236B1 (es)
DE (1) DE69204699T2 (es)
ES (1) ES2079696T3 (es)
IT (1) IT1245011B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379590A (en) * 1993-10-06 1995-01-10 Ford Motor Company Air/fuel control system with hego current pumping
US5383333A (en) * 1993-10-06 1995-01-24 Ford Motor Company Method for biasing a hego sensor in a feedback control system
DE4341390A1 (de) * 1993-12-04 1995-06-08 Bosch Gmbh Robert Schaltung zur Aufbereitung des Signals eines Meßfühlers
CN203489891U (zh) * 2013-07-02 2014-03-19 大陆汽车电子(芜湖)有限公司 信号检测装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177770A (en) * 1978-09-07 1979-12-11 Ford Motor Company Compensation of sensor voltage for reference potential variation
JPS58179351A (ja) * 1982-04-15 1983-10-20 Nippon Denso Co Ltd 酸素濃度検出装置
JPS6090938A (ja) * 1983-10-24 1985-05-22 Nissan Motor Co Ltd 空燃比制御装置
DE3632036A1 (de) * 1985-09-28 1987-04-02 Volkswagen Ag Einrichtung zur einstellung des kraftstoff-luft-gemischs bei einer brennkraftmaschine mit einer lambdasonde
JP2765881B2 (ja) * 1988-11-09 1998-06-18 三菱電機株式会社 内燃機関の吸入空気量計測装置
US5157274A (en) * 1990-04-30 1992-10-20 Motorola, Inc. Electrical interface circuit

Also Published As

Publication number Publication date
EP0497236A3 (en) 1992-10-14
DE69204699T2 (de) 1996-03-14
ITTO910049A1 (it) 1992-07-29
ITTO910049A0 (it) 1991-01-29
EP0497236A2 (en) 1992-08-05
DE69204699D1 (de) 1995-10-19
IT1245011B (it) 1994-09-13
EP0497236B1 (en) 1995-09-13

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