METHODS AND APPARATUS FOR AN IGNITION SYSTEM
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United States of America Patent
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May 9, 2019
app pub date -
Nov 7, 2017
filing date -
Nov 7, 2017
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Abstract
Various embodiments of the present technology comprise a method and apparatus for an ignition system. In various embodiments, the ignition system activates a soft shutdown of an ignition coil in the event of an over dwell condition. The apparatus comprises first and second voltage-to-current converters and utilizes a difference of the converter outputs to control the current through the ignition coil. During the soft shutdown, the current decreases non-linearly during a first period and decreases linearly during an immediately following second period.
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