Patent application number | Description | Published |
20110093181 | METHOD FOR BIODIESEL BLENDING DETECTION BASED ON INTERNAL MEAN EFFECTIVE PRESSURE EVALUATION - A method for biodiesel blending detection in a internal combustion engine includes, but is not limited to a first evaluation of the internal mean effective pressure (IMEP) by means of measurements provided by a first sensor whose output is representative of the actual IMEP value, a second evaluation of the internal mean effective pressure (IMEP) performed measuring fuel conversion efficiency (FCE), injected fuel quantity (Q | 04-21-2011 |
20110125383 | METHOD FOR BIODIESEL BLENDING DETECTION BASED ON RELATIVE AIR-TO-FUEL RATIO ESTIMATION - A method is provided for biodiesel blending detection in an internal combustion engine that includes, but is not limited to a first evaluation of the relative air-to-fuel ratio (RAFR) by means of a first sensor whose output whose output is representative of the actual RAFR value, in order to use such first evaluation as a reference value, a second evaluation of the relative air-to-fuel ratio (RAFR) performed measuring mass air flow (MAF), injected fuel quantity (Q | 05-26-2011 |
20120024271 | METHOD FOR MANAGING THE RELATIVE HUMIDITY IN THE AIR PATH OF AN INTERNAL COMBUSTION ENGINE EQUIPPED WITH A LOW PRESSURE EGR SYSTEM - A method is provided for estimating the relative humidity in an intake line of an internal combustion engine provided with an intake manifold connected to the intake line, an exhaust line, and a Low Pressure EGR (LPE) conduit which fluidly connects the exhaust line to a connecting point of said intake line. The method includes, but is not limited to calculating specific humidity in the exhaust line, as a function of the O | 02-02-2012 |
20120143470 | METHOD FOR OPERATING A VARIABLE DISPLACEMENT OIL PUMP - A method is provided for operating a variable displacement oil pump of an internal combustion engine, that includes, but is not limited to measuring a value of an engine metal temperature and of preventing the variable displacement oil pump to switch from an high displacement configuration to a low displacement configuration, as long as the measured value is greater than a first threshold value of the engine metal temperature. | 06-07-2012 |
20130042841 | EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation system for an internal combustion engine comprising an exhaust gas recirculation conduit fluidly connecting an exhaust manifold to an intake manifold of the internal combustion engine, first and second exhaust gas coolers located in series in the exhaust gas recirculation conduit, each of the first and second exhaust gas coolers comprising an inlet and an outlet fluidly connected to a first and a second coolant circuit respectively, wherein the second coolant circuit comprises a radiator having a coolant inlet in fluid communication with the coolant outlet of the second exhaust gas cooler, a pump having a coolant inlet in fluid communication with a coolant outlet of the radiator and a coolant outlet in fluid communication with the coolant inlet of the second exhaust gas cooler, and an additional conduit fluidly connecting the coolant outlet of the exhaust cooler. | 02-21-2013 |
20130042842 | EXHAUST GAS RECIRCULATION COOLER FOR AN INTERNAL COMBUSTION ENGINE - An exhaust gas recirculation cooler for an internal combustion engine is provided. The exhaust gas recirculation cooler includes an external casing with an inlet and an outlet for an exhaust gas flow. A first tube bundle and a second tube bundle, each with an inlet and an outlet for a coolant, are located inside the external casing so that the exhaust gas flow flows through the first tube bundle and the second tube bundle in series. A bypass passage conveys the exhaust gas flow from downstream the first tube bundle to the outlet of the external casing bypassing the second tube bundle. The bypass passage is located inside the external casing between the first tube bundle and the second tube bundle. | 02-21-2013 |
20130297181 | ADAPTIVE ENGINE CONTROL IN RESPONSE TO A BIODIESEL FUEL BLEND - A method for operating a compression-ignition engine includes controlling an engine fueling, a compressor boost pressure, and an EGR content in a cylinder charge to maintain engine operation in response to a biodiesel blend ratio of a biodiesel fuel blend. | 11-07-2013 |
20130298526 | ADAPTIVE REGENERATION OF AN EXHAUST AFTERTREATMENT DEVICE IN RESPONSE TO A BIODIESEL FUEL BLEND - A compression-ignition engine is coupled to an exhaust aftertreatment system including a particulate filter. A method of operating the compression-ignition engine includes executing a feed-forward control scheme to determine an amount of post-combustion fuel to achieve a preferred temperature in the exhaust gas feedstream at an inlet to the particulate filter. The amount of post-combustion fuel is a nominal post-combustion fuel amount adjusted for a biodiesel blend ratio of the fuel. The post-combustion fuel is injected upstream of the exhaust aftertreatment system in response to a command to regenerate the particulate filter. | 11-14-2013 |
20140007851 | METHOD OF CONTROLLING AN AFTER-TREATMENT SYSTEM WARM-UP - A method is provided for controlling an internal combustion engine. The engine includes, but is not limited to a low pressure EGR cooler by-pass circuit, and a control valve. The method controls the opening of the EGR cooler by-pass circuit with the control valve, if enabling conditions are met. | 01-09-2014 |