Internal combustion engine ignition device
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United States of America Patent
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Dec 15, 2015
Grant Date -
Apr 30, 2015
app pub date -
Mar 4, 2014
filing date -
Oct 28, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided an internal combustion engine ignition device which comprises a switching element for causing or interrupting flow of a current through a primary coil of an ignition coil; a secondary current detection circuit connected to a secondary coil for detecting a secondary current flowing at the time of ignition; an ion current detection circuit for detecting an ion current generated after the ignition; and an energy consumption circuit which is activated based on an output signal from the secondary current detection circuit that is output when the secondary current exceeds a predetermined threshold value, to constitute a circuit for discharging energy stored in the ignition coil.
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