High energy ignition method and system using pre-dwell control
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United States of America Patent
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Jan 23, 2007
Grant Date -
Jan 5, 2006
app pub date -
Sep 20, 2004
filing date -
Nov 26, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method of managing the energy stored in a single ignition coil of a distributor inductive ignition for an engine. The engine comprises a plurality of cylinders and the ignition coil has a primary coil current. The ignition coil has a stored energy and a released energy during an ignition period. A pre-dwell time period and a pre-dwell current level is determined. The stored energy of the ignition coil and the released energy of the ignition coil are balanced during the ignition period at least in part by dwelling the primary coil current in the ignition coil at substantially the pre-dwell current level.
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