Method for controlling a fuel metering system of an internal...

Details Method for controlling a fuel metering system of an internal... Method for controlling a fuel metering system of an internal...

2006-08-22

2006-08-22

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S480000

Reexamination Certificate

active

07093586

ABSTRACT:
A method for controlling a fuel metering system of an internal combustion engine. A activation duration of at least one electrically operated injector determines the injected fuel quantity. The minimum activation duration during which fuel is only just injected being determined in certain operating states. The activation duration being increased/reduced starting at an initial value, and the activation duration during which a signal undergoes a change being stored as the minimum activation duration, in which the difference between the activation duration during which a signal undergoes a change and the stored minimum activation duration is determined, from which correction values for the fuel quantity map of the injector are determined and stored using at least one transfer function, which characterizes the relationship between the minimum injection and activation durations at several test points of the injector and/or the relationship between the activation durations at different test points of the injector.

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patent: 102 15 610 (2002-10-01), None

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