Adaptive fuel injector trimming during a zero fuel condition

Internal-combustion engines – Charge forming device – Including means responsive to instantaneous change in engine...

Reexamination Certificate

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C123S479000, C073S114220, C073S117020, C701S104000, C701S112000, C701S114000

Reexamination Certificate

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06964261

ABSTRACT:
Apparatuses and methods for controlling a fuel injector. A fuel shot is injected during a zero fuel condition. A rail pressure drop corresponding to the fuel shot is determined. A change in engine speed corresponding to the fuel shot is determined. An adjustment to the fuel injection as a function of the rail pressure drop and the corresponding change in engine speed is determined.

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