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1. (WO1991006755) METHOD AND APPARATUS FOR AIR-FUEL RATIO LEARNING CONTROL OF INTERNAL COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006755 International Application No.: PCT/JP1990/001405
Publication Date: 16.05.1991 International Filing Date: 31.10.1990
IPC:
F02B 1/04 (2006.01) ,F02D 41/14 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
1
Engines characterised by fuel-air mixture compression
02
with positive ignition
04
with fuel-air mixture admission into cylinder
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
02
Circuit arrangements for generating control signals
14
Introducing closed-loop corrections
Applicants:
JAPAN ELECTRONIC CONTROL SYSTEMS CO., LTD. [JP/JP]; 1671-1, Kasukawa-cho Isesaki-shi Gunma-ken 372, JP (AllExceptUS)
NAKANIWA, Shinpei [JP/JP]; JP (UsOnly)
Inventors:
NAKANIWA, Shinpei; JP
Agent:
SASAJIMA, Fujio; Daisan Mori Bldg. 4-10, Nishi-Shimbashi 1-chome Minato-ku Tokyo 105, JP
Priority Data:
1/28288301.11.1989JP
Title (EN) METHOD AND APPARATUS FOR AIR-FUEL RATIO LEARNING CONTROL OF INTERNAL COMBUSTION ENGINE
(FR) PROCEDE ET DISPOSITIF DE REGULATION PAR APPRENTISSAGE DU RAPPORT DE MELANGE AIR-CARBURANT DANS UN MOTEUR A COMBUSTION INTERNE
Abstract:
(EN) In a system providing air-fuel ratio learning and correction for each of classified operation ranges, the present invention includes a plurality of learning maps classified into different sizes of operation ranges and allows the learning to start at a more broadly classified operation range. According to the construction described above, both focusing of learning and air-fuel ratio correction accuracy for each operation condition can be satisfied.
(FR) Système assurant l'apprentissage et la correction du rapport de mélange air-carburant à chacun des régimes moteur déterminés. Ce procédé consiste à utiliser un ensemble de tableaux d'apprentissage classés selon les différentes plages de régimes moteur, et permet au processus d'apprentissage de commencer à un régime moteur déterminé de manière approximative. L'agencement ci-décrit permet de conférer un caractère convergent au processus d'apprentissage et d'effectuer une correction précise du rapport de mélange air-carburant à chaque régime.
Designated States: US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0451295US5243951