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2010-11-17T10:02:20Z
2010-12-10T16:22:45+01:00
Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0292973-A3-19890927
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EP-0292973-A3-19890927
An air/fuel ratio control system controls fuel delivery amount on the basis of oxygen concentration in an exhaust gas. An air/fuel ratio dependent correction value is derived on the basis of the oxygen concentration. The air/fuel ratio control is performed in feedback mode and open loop mode. In feedback mode, fuel delivery amount is corrected utilizing a correction value which includes a learnt component. Learning of the learnt component is performed during feedback mode operation. The learnt component comprises an uniformly applicable air density dependent factor and a engine driving range dependent factor which is set with respect to each of the engine driving ranges. Learning of the air density factor and engine driving range dependent factor are selectively performed depending upon the engine driving condition.
An air/fuel ratio control system controls fuel delivery amount on the basis of oxygen concentration in an exhaust gas. An air/fuel ratio dependent correction value is derived on the basis of the oxygen concentration. The air/fuel ratio control is performed in feedback mode and open loop mode. In feedback mode, fuel delivery amount is corrected utilizing a correction value which includes a learnt component. Learning of the learnt component is performed during feedback mode operation. The learnt component comprises an uniformly applicable air density dependent factor and a engine driving range dependent factor which is set with respect to each of the engine driving ranges. Learning of the air density factor and engine driving range dependent factor are selectively performed depending upon the engine driving condition.
en
European Patent Office
EP0292973
EP 0292973
F02D 41/14
F02D 41/04
F02D 41/34
F02D 41/26
Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor
Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor - European Patent Office - EP 0292973 A3
Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor - European Patent Office - EP 0292973 A3
Adobe PDF Library 8.0
"EP0292973"; "EP 0292973"; "F02D 41/14"; "F02D 41/04"; "F02D 41/34"; "F02D 41/26"; "Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor"
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1989-09-27
88108437
1988-05-26
JP
12989387
1987-05-28
JP
13182687
1987-05-29
F02D 41/14
F02D 41/04
F02D 41/34
F02D 41/26
JAPAN ELECTRONIC CONTROL SYSTEMS CO., LTD.
Tomisawa, Naoki Japan Elec.Contr.Syst.Co.,Ltd.
Schoppe, Fritz, Dipl.-Ing.
Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor
Luft/Kraftstoff-Verhältnis-Steuersystem für Innenbrennkraftmaschine mit der Fähigkeit einen einen höhenabhängigen Faktor enthaltenden Korrektionskoeffizienten zu lernen
Air/fuel mixture ratio control system for internal combustion engine with feature of learning correction coefficient including altitude dependent factor
Système de commande de rapport air-carburant pour moteur à composition interne avec coefficient de correction adaptative comprenant un facteur dépendant de l'altitude
An air/fuel ratio control system controls fuel delivery amount on the basis of oxygen concentration in an exhaust gas. An air/fuel ratio dependent correction value is derived on the basis of the oxygen concentration. The air/fuel ratio control is performed in feedback mode and open loop mode. In feedback mode, fuel delivery amount is corrected utilizing a correction value which includes a learnt component. Learning of the learnt component is performed during feedback mode operation. The learnt component comprises an uniformly applicable air density dependent factor and a engine driving range dependent factor which is set with respect to each of the engine driving ranges. Learning of the air density factor and engine driving range dependent factor are selectively performed depending upon the engine driving condition.
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