Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2009-01-27
2011-10-11
Vo, Hieu T (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
Reexamination Certificate
active
08036811
ABSTRACT:
A method is provided that includes, but is not limited to acquiring the crankshaft speed signal while one fuel injector is energized for a determined period of time (ET) in which all the other fuel injectors are de-energized, processing the acquired crankshaft speed signal so as to obtain signals or data (A) representative of the amplitude of a predetermined harmonic component of the crankshaft speed signal, and calculating the power (RMS/MS) of said harmonic component, and assuming the calculated power value (C) as an estimation of the quantity of fuel actually injected by the energized injector in said predetermined period of time (ET).
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patent: 6021758 (2000-02-01), Carey et al.
patent: 2002/0148441 (2002-10-01), Tuken
patent: 2463022 (2010-03-01), None
Bastianelli Michele
De Fazio Tommaso
Rovatti Giovanni
GM Global Technology Operations LLC
Ingrassia Fisher & Lorenz P.C.
Vo Hieu T
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