Device and method for controlling the operation of an exhaust gas recirculation valve using an ignition advance management device
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United States of America Patent
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Feb 20, 2018
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N/A
app pub date -
Nov 14, 2014
filing date -
Dec 12, 2013
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Abstract
An engine includes at least one spark plug, an ignition advance management device to determine and to apply an optimum ignition advance of the spark plug, and an exhaust gas recirculation device equipped with a gas recirculation control valve. A control device for the internal combustion engine includes a first actuator to force opening and closing of the control valve, a map in which are stored theoretical ignition advance values as a function of engine speed and engine load, a first calculator to calculate a diagnostic criterion as a function of the theoretical ignition advance determined from the map and the optimum ignition advance, and a comparator to compare the diagnostic criterion to a control valve failure threshold.
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