Internal-combustion engines – High tension ignition system – Having a specific ignition coil
Patent
1993-11-08
1995-05-02
Nelli, Raymond A.
Internal-combustion engines
High tension ignition system
Having a specific ignition coil
F02P 1100
Patent
active
054110068
ABSTRACT:
An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted directly to a spark plug and adapted to rapidly refire the spark plug during a combustion cycle enabling the performance of various ignition diagnostic procedures. A controller provides signals to a circuit which causes charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of electrical discharges across the spark plug electrodes as a result of the diagnostic charges. The detection circuit either outputs a signal or omits a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder. Additionally, the diagnostic circuit is capable of outputting a signal which can be correlated to the load on the engine.
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Ciuffetelli Mark
Kafka Leonard
Noble Gardiner A.
Calcaterra Mark P.
Chrysler Corporation
Nelli Raymond A.
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