SYSTEM FOR CONTROLLING AN EGR VALVE OF AN INTERNAL COMBUSTION ENGINE BASED ON A FLOW MODEL
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United States of America Patent
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Sep 17, 2015
app pub date -
Nov 6, 2013
filing date -
Nov 6, 2012
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Abstract
System for controlling an EGR valve of an internal combustion engine based on a flow model, the flow model estimating an EGR flow rate outgoing from the EGR valve to control an opening/closing of said EGR valve, on the basis of operating parameters of the internal combustion engine; the method being characterized in that it models said EGR valve as a nozzle and it calculates a relative equivalent outflow area to correct said estimation of the EGR flow rate.
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