Internal-combustion engines – High tension ignition system
Reexamination Certificate
2006-03-21
2006-03-21
Mohanty, Bibhu (Department: 3747)
Internal-combustion engines
High tension ignition system
C123S625000
Reexamination Certificate
active
07013881
ABSTRACT:
The invention is a method for controlling ignition parameters of a spark plug (16) for an internal-combustion engine whose ignition is controlled by an engine control calculator, with the spark plug receiving a high voltage (U_HT) and a current (I_HT) from an ignition emulator (E). The method establishes a target current and/or voltage values (Ucible_HT, Ucible_Boost, Icible_HT, Icible_Boost) to obtain the desired electric arc at the spark plug electrodes, stores the target values in a parametering unit (32), measuring at regular intervals, after an ignition command by the calculator, at least one of a voltage (U_HT, U_Boost, U_Batt) and current (I_HT, I_Boost) parameter coming from the emulator, comparing the parameters with the target values, and when variation occur between the measured parameters and the target values, adjusting the parameters to reach the target values for controlling the ignition parameters of a spark plug for an internal-combustion engine. The spark plug receives a voltage (U_HT) and a current (I_HT) from ignition emulator (E). At least one interruption means (K1, K2, K3) control the voltage applied to the spark plug.
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Capacitor Discharge Ignition System Having Extended Burn Time, Kenneth Mason Publications, Hampshire, GB No. 339, Jul. 1992 p. 577.
Antonelli, Terry Stout and Kraus, LLP.
Institut Francais du Pe'trole
Mohanty Bibhu
Societe Apojee
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