System and method of compensating for injector variability

Details System and method of compensating for injector variability System and method of compensating for injector variability

F - Mech Eng,Light,Heat,Weapons

02

M

F02M 51/00 (2006.01) B05B 1/30 (2006.01) F02D 41/24 (2006.01)

Patent

CA 2291107

Electronically controlled fuel injectors (14) are capable of complex injection control methods, such as split injection. A calibration code assigned to each injector (14) is used by a logic controller (50) to determine calibrated energizing times based on raw energizing times determined by the engine control unit (22). Each injector (14) may be individually calibrated to compensate for injector variability, and facilitate balanced power output from each cylinder.

L'invention concerne des injecteurs de carburant à commande électronique (14) capables de réguler l'injection selon des procédés complexes, comme l'injection fractionnée. Un code d'étalonnage affecté à chaque injecteur (14) est utilisé par un module de commande logique (50) pour déterminer des temps d'excitation étalonnés d'après des temps d'excitation bruts établis par l'unité de commande du moteur (22). Chaque injecteur (14) peut être individuellement étalonné, afin de compenser la variabilité de l'injecteur et de faciliter l'équilibrage de la puissance délivrée par chaque cylindre.

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