Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-04-10
2007-04-10
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
10546534
ABSTRACT:
Method for detecting misfires of a mixture between a fuel oxidizing agent, in any one of the cylinders of an and an internal combustion engine, by the following steps:a) during at least some of the phases of combustion in at least one of the cylinders, a current value, at an instant (t) of operation of the engine, of an index I(t) representative of operational irregularities in the engine stroke is calculated,b) while the engine is operating, and on the basis of the current value, at the instant (t) of the index I(t), the current value at the same instant (t) of an observation function E(t) is calculated, such that:in-line-formulae description="In-line Formulae" end="lead"?E(t)=I(t)−Ī(t±αt)in-line-formulae description="In-line Formulae" end="tail"?where Ī(t±Δt) is an estimated value of the index I (t) at an instant (t±Δt) different from (t),c) the current value of E(t) is compared with a predetermined threshold (S) dependent on the engine load (C) and/or speed (N), andd) a misfire is diagnosed when the value of E(t) exceeds the threshold (S).
REFERENCES:
patent: 5505079 (1996-04-01), Rossignol
patent: 5708200 (1998-01-01), Rossignol
patent: 5747681 (1998-05-01), Kuroda et al.
patent: 5821412 (1998-10-01), Mathias
patent: 6082188 (2000-07-01), Angermaier et al.
patent: 6584834 (2003-07-01), Lehner et al.
patent: 6651490 (2003-11-01), Ceccarani et al.
patent: 7072760 (2006-07-01), Rossignol
patent: 1 058 107 (2000-12-01), None
patent: 2 689 934 (1993-10-01), None
patent: 2 718 489 (1995-10-01), None
Siemens VDO Automotive
Vo Hieu T.
Young & Thompson
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