Charial
Christope Charial, Jouars-Pontchartrain FR
Patent application number | Description | Published |
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20120227383 | METHOD FOR CONTROLLING A SYSTEM FOR THE TREATMENT OF EXHAUST GASES FROM AN INTERNAL COMBUSTION ENGINE - The invention relates to a method for controlling a system for the treatment of exhaust gases in an exhaust line of an internal combustion engine. The method comprises estimating the molar ratio of nitrogen dioxide to nitrogen monoxide at the inlet of an NOx selective reduction catalyst based on cartography that is dependent on the residence time of the exhaust gases in an oxidation catalyst disposed upstream of the gas treatment means leading to a reduction of nitrogen oxides. | 09-13-2012 |
Christophe Charial, Jouars-Pontchartrain FR
Patent application number | Description | Published |
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20110094209 | METHOD FOR CORRECTING NITROGEN OXIDE EMISSION MODELS - The invention relates to a method for correcting a model for determining the amount of reducing agent to inject for the selective catalytic reduction of nitrogen oxides contained in exhaust gases, which includes the following steps: determining an amount of reducing agent to inject based on the amount of nitrogen oxides emitted and an initial mathematical model; determining, by taking a measurement from the catalyst of the amount and/or nature of the gas, whether or not the reducing reaction is carried out under correct conditions; if an anomaly is detected, adjusting the amount of reducing agent to inject; and if the use of said method leads to a number of repeated adjustments of the same nature greater than a predetermined value N: the mathematical model is corrected, and the initial mathematical model is replaced by the corrected model. | 04-28-2011 |
20120222404 | METHOD FOR CONTROLLING POLLUTANT EMISSIONS FROM A COMBUSTION ENGINE - The invention relates to a method for controlling a system for treating NOx in an exhaust line of an internal combustion engine, said system comprising means for introducing a reducing agent into the exhaust line upstream of an NOx reduction catalyst. The invention is characterised in that it consists in estimating the efficiency of the treatment in relation to a maximum conversion potential obtained if the ratio between the quantity of injected reducer and the quantity of NOx in the gas complies with a given set value and if the mass of reducing agent stored in the catalyst complies with a given storage set value. | 09-06-2012 |
Christophe Charial, Rueil-Malmaison FR
Patent application number | Description | Published |
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20120011846 | Method for Monitoring Pollutant Emissions of a Combustion Engine, Power Train, and Vehicle Fitted With Said Power Train - The invention relates to a method for monitoring the pollutant emissions of a combustion engine comprising at least one piston ( | 01-19-2012 |
20120096836 | METHOD OF MONITORING POLLUTANT EMISSIONS OF A COMBUSTION ENGINE - The invention relates to a method for monitoring the pollutant emissions of a combustion engine comprising at least one piston, the translatable movement of which defines a combustion chamber, said engine being combined with an exhaust line that, in the direction of exhaust gas flow, comprises an oxidation catalyst, an NOx reduction catalyst, and a particle filter, the method being characterized by the use of a fuel comprising an additive assisting in soot combustion when re-refined by the particle filter, and according to at least one operating mode of the engine, the fuel is injected in accordance with a calibration minimizing carbon dioxide discharges by the engine. | 04-26-2012 |
Christophe Charial, Pontchartrain FR
Patent application number | Description | Published |
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20120174563 | Device and Method for Regulating the Injection of a Quantity of Reducer in the Gaseous Phase - The invention relates to a device ( | 07-12-2012 |