Internal-combustion engines – High tension ignition system – High frequency ignition system
Reexamination Certificate
2005-05-03
2005-05-03
Solis, Erick (Department: 3747)
Internal-combustion engines
High tension ignition system
High frequency ignition system
C073S035080, C123S625000
Reexamination Certificate
active
06886547
ABSTRACT:
A plurality of ignition coils having a combustion detection capability, such as an ion sense capability or cylinder pressure detection capability, are connected to a common communication line. The combustion signals for the plurality of ignition coils is multiplexed on the common communication line. The combustion signal for each ignition coil/cylinder is applied to the common line combined with a respective sync signal such as a current flag signal or a respective electronic spark timing (EST) signal. The sync signals allow each ignition coil to determine when it can transmit its combustion signal.
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Delphi Technologies Inc.
Funke Jimmy L.
Solis Erick
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