IT1245011B - Sistema di comando di un dispositivo di regolazione del titolo di una miscela di carburante per un motore a combustione interna - Google Patents

Sistema di comando di un dispositivo di regolazione del titolo di una miscela di carburante per un motore a combustione interna

Info

Publication number
IT1245011B
IT1245011B ITTO910049A ITTO910049A IT1245011B IT 1245011 B IT1245011 B IT 1245011B IT TO910049 A ITTO910049 A IT TO910049A IT TO910049 A ITTO910049 A IT TO910049A IT 1245011 B IT1245011 B IT 1245011B
Authority
IT
Italy
Prior art keywords
mass
block
signal
combustion engine
internal combustion
Prior art date
Application number
ITTO910049A
Other languages
English (en)
Inventor
Pietro Nenzioni
Luca Biagini
Original Assignee
Weber Srl
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 Weber Srl filed Critical Weber Srl
Priority to ITTO910049A priority Critical patent/IT1245011B/it
Publication of ITTO910049A0 publication Critical patent/ITTO910049A0/it
Priority to ES92101246T priority patent/ES2079696T3/es
Priority to DE69204699T priority patent/DE69204699T2/de
Priority to EP92101246A priority patent/EP0497236B1/en
Publication of ITTO910049A1 publication Critical patent/ITTO910049A1/it
Application granted granted Critical
Publication of IT1245011B publication Critical patent/IT1245011B/it

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

Il sistema comprende:una sonda (2) connessa ad una prima massa (5) con un potenziale elettrico variabile per l'influsso del motore e di campi elettromagnetici e che genera un segnale funzione dell'ossigeno rilevato nei gas di scarico;un primo blocco (6) connesso alla prima massa e che polarizza ad una prefissata tensione (+V1) la sonda;un secondo blocco (18) che converte il segnale del primo blocco in un segnale riferito ad una seconda massa (21) con un potenziale elettrico costante ed isolata dalla prima massa;una centralina (23) connessa alla seconda massa e che elabora segnali relativi a condizioni di funzionamento del motore ed il segnale del secondo blocco; ed un terzo blocco (24) abilitato dalla centralina per il comando della regolazione del titolo della miscela.
ITTO910049A 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 IT1245011B (it)

Priority Applications (4)

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
ES92101246T 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.
DE69204699T DE69204699T2 (de) 1991-01-29 1992-01-27 System zur Steuerung einer Vorrichtung zur Regelung des Kraftstoff-Luftverhältnisses eines Verbrennungsmotors.
EP92101246A EP0497236B1 (en) 1991-01-29 1992-01-27 Control system for a fuel mixture strength regulating device of an internal combustion engine

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 (3)

Publication Number Publication Date
ITTO910049A0 ITTO910049A0 (it) 1991-01-29
ITTO910049A1 ITTO910049A1 (it) 1992-07-29
IT1245011B true IT1245011B (it) 1994-09-13

Family

ID=11408829

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (4)

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

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
ES2079696T3 (es) 1996-01-16
ITTO910049A0 (it) 1991-01-29
EP0497236A3 (en) 1992-10-14
DE69204699D1 (de) 1995-10-19
DE69204699T2 (de) 1996-03-14
EP0497236A2 (en) 1992-08-05
ITTO910049A1 (it) 1992-07-29
EP0497236B1 (en) 1995-09-13

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990128