IT1250986B - Sistema con controllo adattativo della quantita' di benzina iniettata per un sistema di iniezione elettronica - Google Patents

Sistema con controllo adattativo della quantita' di benzina iniettata per un sistema di iniezione elettronica

Info

Publication number
IT1250986B
IT1250986B ITTO910591A ITTO910591A IT1250986B IT 1250986 B IT1250986 B IT 1250986B IT TO910591 A ITTO910591 A IT TO910591A IT TO910591 A ITTO910591 A IT TO910591A IT 1250986 B IT1250986 B IT 1250986B
Authority
IT
Italy
Prior art keywords
petrol
injected
adaptive control
engine
electronic injection
Prior art date
Application number
ITTO910591A
Other languages
English (en)
Inventor
Maurizio Abate
Claudio Carnevale
Pietro Nenzioni
Aldo Perotto
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 ITTO910591A priority Critical patent/IT1250986B/it
Publication of ITTO910591A0 publication Critical patent/ITTO910591A0/it
Priority to DE69219025T priority patent/DE69219025T2/de
Priority to ES92112348T priority patent/ES2103329T3/es
Priority to EP92112348A priority patent/EP0524575B1/en
Publication of ITTO910591A1 publication Critical patent/ITTO910591A1/it
Application granted granted Critical
Publication of IT1250986B publication Critical patent/IT1250986B/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
    • F02D41/02—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)
    • 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
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2416—Interpolation techniques
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

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)
  • Feedback Control In General (AREA)

Abstract

Sistema con controllo adattativo della quantità di benzina iniettata per un sistema di iniezione elettronica, in cui una unità di calcolo (10) riceve in ingresso segnali proporzionali alla pressione (p) ed alla temperatura (T) dell'aria aspirata nel collettore del motore, ed al numero di giri del motore. Tale unità (10) elabora i segnali presenti all'ingresso, e fornisce in uscita il valore (Qb) della quantità di benzina da iniettare per avere un rapporto stechiometrico aria/benzina sostanzialmente corretto. Tale valore (Qb) viene successivamente corretto mediante due coefficienti (K02 e Kad), di cui il primo viene calcolato in anello chiuso integrando la differenza tra il segnale fornito da una sonda lambda (20) e un valore di tensione (Vst) di riferimento, ed il secondo viene ottenuto interpolando un insieme di valori comprendenti l'inverso della quantità di aria (1/(Q)) aspirata dal motore, ed i valori del parametro (K02) misurati in istanti precedenti.(Figura 1)
ITTO910591A 1991-07-26 1991-07-26 Sistema con controllo adattativo della quantita' di benzina iniettata per un sistema di iniezione elettronica IT1250986B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ITTO910591A IT1250986B (it) 1991-07-26 1991-07-26 Sistema con controllo adattativo della quantita' di benzina iniettata per un sistema di iniezione elettronica
DE69219025T DE69219025T2 (de) 1991-07-26 1992-07-20 Adaptives elektronisches System zur Kontrolle der Benzineinspritzung
ES92112348T ES2103329T3 (es) 1991-07-26 1992-07-20 Sistema de suministro de carburante por inyeccion electronica de control adaptativo.
EP92112348A EP0524575B1 (en) 1991-07-26 1992-07-20 Adaptive electronic injection fuel delivery control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910591A IT1250986B (it) 1991-07-26 1991-07-26 Sistema con controllo adattativo della quantita' di benzina iniettata per un sistema di iniezione elettronica

Publications (3)

Publication Number Publication Date
ITTO910591A0 ITTO910591A0 (it) 1991-07-26
ITTO910591A1 ITTO910591A1 (it) 1993-01-26
IT1250986B true IT1250986B (it) 1995-04-27

Family

ID=11409520

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910591A IT1250986B (it) 1991-07-26 1991-07-26 Sistema con controllo adattativo della quantita' di benzina iniettata per un sistema di iniezione elettronica

Country Status (4)

Country Link
EP (1) EP0524575B1 (it)
DE (1) DE69219025T2 (it)
ES (1) ES2103329T3 (it)
IT (1) IT1250986B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819445A1 (de) * 1998-04-30 1999-11-04 Volkswagen Ag Verfahren zur Bestimmung von Kennfelddaten zur Kennfeldsteuerung eines Verbrennungsmotors sowie Verfahren zur Steuerung eines Verbrennungsmotors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5825540A (ja) * 1981-08-10 1983-02-15 Nippon Denso Co Ltd 空燃比制御方法
JPS60233328A (ja) * 1984-05-02 1985-11-20 Honda Motor Co Ltd 内燃エンジンの空燃比フイ−ドバツク制御方法
FR2567962B1 (fr) * 1984-07-23 1989-05-26 Renault Procede adaptatif de regulation de l'injection d'un moteur a injection
JPH0723702B2 (ja) * 1986-12-27 1995-03-15 マツダ株式会社 燃料制御装置
US4977881A (en) * 1989-01-19 1990-12-18 Fuji Jukogyo Kabushiki Kaisha Air-fuel ratio control system for automotive engine

Also Published As

Publication number Publication date
DE69219025D1 (de) 1997-05-22
EP0524575A3 (en) 1994-11-23
ES2103329T3 (es) 1997-09-16
ITTO910591A0 (it) 1991-07-26
EP0524575A2 (en) 1993-01-27
DE69219025T2 (de) 1997-11-20
EP0524575B1 (en) 1997-04-16
ITTO910591A1 (it) 1993-01-26

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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: 19950727