Fuel injection diagnostic control device

Details Fuel injection diagnostic control device Fuel injection diagnostic control device

G - Physics

01

R

G01R 31/00 (2006.01) F02B 75/22 (2006.01) F02B 77/08 (2006.01) F02D 41/22 (2006.01) F02M 65/00 (2006.01) G01M 15/00 (2006.01)

Patent

CA 2302229

A diagnostic/control device for fuel injected internal combustion engines comprising a control system (14) connectable via leads (16) to the fuel injectors (10) after disconnection therefrom of an engine management computer (11), the latter being connected directly (at 18) to the control system (14). An oxygen sensor (13) is connected (at 17) to the control system (14) whereby the latter is connected between the engine management computer (11) and the fuel injectors (10) and can be operated in closed circuit or open circuit mode to control the injectors directly when required independently of the engine management computer (11).

La présente invention concerne un dispositif de commande et de diagnostic pour les moteurs à combustion interne avec injection de carburant, comprenant un système de commande (14) pouvant être connecté par des conduits (16) à des injecteurs de carburant (10) après débranchement d'un ordinateur de gestion de moteur (11), lequel est connecté directement (18) au système de commande (14). Un capteur d'oxygène (13) est connecté (17) au système de commande (14), lequel est connecté entre l'ordinateur de gestion précité (11) et les injecteurs de carburant (10), et peut être activé en mode circuit ouvert ou fermé de manière à commander les injecteurs directement si besoin est, indépendamment de l'ordinateur de gestion (11).

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