Variable displacement engine control system and method
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United States of America Patent
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Jun 13, 2017
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app pub date -
May 16, 2013
filing date -
May 16, 2013
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Abstract
Methods and systems are provided for adjusting an ignition energy provided to an engine cylinder upon reactivation from a VDE mode of operation. Ignition energy is increased by increasing an ignition coil dwell time and/or an ignition coil strike frequency. The increased ignition energy improves combustion stability during the transition out of the VDE mode of operation.
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