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1. (WO1979000979) ELECTRONIC ENGINE CONTROL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000979 International Application No.: PCT/US1979/000258
Publication Date: 29.11.1979 International Filing Date: 23.04.1979
IPC:
F02D 41/06 (2006.01) ,F02D 41/18 (2006.01) ,F02P 5/155 (2006.01) ,F02B 1/04 (2006.01)
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
04
Introducing corrections for particular operating conditions
06
for engine starting or warming up
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
18
by measuring intake air flow
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
P
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
5
Advancing or retarding electric ignition spark; Control therefor
04
automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
145
using electrical means
155
Analogue data processing
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
Applicants:
Inventors:
Priority Data:
89935524.04.1978US
Title (EN) ELECTRONIC ENGINE CONTROL
(FR) COMMANDE ELECTRONIQUE DE MOTEUR
Abstract:
(EN) An electronic controller (2) for an internal combustion engine (22) provides a ratio control signal corresponding to a respective air/fuel ratio, and responds to an air flow signal, a fuel flow signal and the ratio control signal to control fuel flow as to make the ratio of air flow to fuel flow substantially equal to said respective air/fuel ratio. The ratio control signal is developed from a base run ratio control signal as modified in response to various parameters such as engine temperature, manifold pressure, idle, manifold vacuum, fuel temperature, wide open throttle, engine speed, and start. The controller (2) also provides a speed-up circuit (5) for promptly responding to change in air flow and dynamic braking for the fuel metering pump (52). The pump speed circuit (7) includes a range extender (164). The controller (2) further provides a timing advance control signal in response to air/fuel ratio and various engine parameters such as engine speed, manifold pressure, throttle position, engine temperature, air temperature, air/fuel ratio, and start.
(FR) Un controleur electronique (2) pour moteur a combustion interne (22) fournit un signal de commande de rapport correspondant a un rapport air/carburant respectif, et repond a un signal de debit d"air, un signal de debit de carburant et a un signal de commande de rapport pour commander le debit de carburant de maniere a rendre le rapport debit d"air/debit de carburant sensiblement egal audit rapport respectif air/carburant. Le signal de commande du rapport est developpe a partir d"un signal de commande de rapport de fonctionnement de base qui est modifie en reponse a divers parametres tels que la temperature du moteur, la pression du collecteur, le ralenti, l"aspiration du collecteur, la temperature du carburant, la pleine ouverture du papillon, la vitesse du moteur, et le demarrage. Le controleur (2) possede aussi un circuit accelerateur (5) pour repondre rapidement a un changement du debit d"air et un freinage brusque pour la pompe de dosage de carburant (52). Le circuit de vitesse de pompe (7) comprend un dispositif d"extension de gamme (164). Le controleur (2) produit aussi un signal de commande d"avance a l"allumage en reponse au rapport air/carburant et a divers parametres du moteur tels que la vitesse du moteur, la pression du collecteur, la position du papillon, la temperature du moteur, la temperature de l"air, le rapport air/carburant, et le demarrage.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)