System and method for controlling fuel injection timing based on spark ignition timing while heating a catalyst to the light-off temperature
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United States of America Patent
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Jan 16, 2018
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app pub date -
Jan 10, 2014
filing date -
Nov 26, 2013
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Abstract
A system according to the principles of the present disclosure includes an ignition timing determination module, an injection timing determination module, a spark control module, and a fuel control module. The ignition timing determination module determines a first crank angle. The injection timing determination module selectively determines a second crank angle based on the first crank angle. The spark control module controls a spark plug to generate spark in a cylinder of an engine at the first crank angle. The fuel control module controls a fuel injector to deliver fuel to the cylinder at the second crank angle.
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