Internal-combustion engines – Charge forming device
Reexamination Certificate
2007-02-27
2008-12-09
Kwon, John T (Department: 3747)
Internal-combustion engines
Charge forming device
C123S435000, C123S585000, C701S103000
Reexamination Certificate
active
07461633
ABSTRACT:
Method of controlling the combustion of an internal-combustion engine, in particular a direct-injection supercharged engine, notably of gasoline type, wherein the engine comprises at least one cylinder (12) with a combustion chamber (14) within which a compression stage takes place, followed by a stage of combustion of a fuel mixture by a spark-ignition means (34), characterized in that it consists in measuring a quantity related to at least one parameter representative of the state of the fuel mixture during said stages; in determining a value that depends on the amplitude of the measured quantity; in comparing the determined value with at least one threshold value representative of the quantity related to said parameter representative of the conventional state of the fuel mixture during said stages; in detecting the start of an abnormal combustion when the determined value exceeds said threshold value and when the ignition means is not actuated; in controlling the course of the abnormal combustion detected in the combustion chamber.
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Vangraefschepe Franck
Zaccardi Jean-Marc
Antonelli, Terry Stout & Kraus, LLP.
IFP
Kwon John T
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