Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2009-09-28
2011-11-29
Huynh, Hai (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C701S111000, C123S435000, C123S406130, C123S479000
Reexamination Certificate
active
08068972
ABSTRACT:
The invention is an abnormal combustion detection method for spark-ignition internal-combustion engines. For each engine cycle, a parameter characterizing a distribution of N combustion indicator values, CA10 for example, acquired over N cycles preceding the cycle in progress, is determined while ignoring extreme values. A threshold is defined from this parameter for the combustion indicator. The start of an abnormal combustion is then detected by comparing the combustion indicator with this threshold and the course of the abnormal combustion detected in the combustion chamber is controlled.
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Auclair Dominique
Duval Laurent
Pagot Alexandre
Thirouard Benoist
Zaccardi Jean-Marc
Antonelli, Terry Stout & Kraus, LLP.
Huynh Hai
IFP
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