Patent application number | Description | Published |
20100094469 | CONTROL METHOD AND SYSTEM FOR A FLUID CONTROL DEVICE, BASED ON POSITION SENSOR LEARNING - A control method is provided for a fluid control device, particularly for an internal combustion engine, equipped with a position sensor having a nominal characteristic curve representative of a predetermined relationship between an admissible range of position values and a corresponding range of return electric signal values. The method includes, but is not limited to determining an offset (offset | 04-15-2010 |
20110041476 | METHOD FOR ESTIMATING OXYGEN CONCENTRATION DOWNSTREAM A DIESEL OXIDATION CATALYST - A method and a control system are provided for estimating oxygen concentration downstream a diesel oxidation catalyst within a diesel engine system. The method includes, but is not limited to at least an intake manifold, a combustion chamber, an exhaust manifold, and the diesel oxidation catalyst located in the exhaust line upstream a diesel particulate filter, the method comprising: determining unburned fuel mass flow ejected from the combustion chamber, determining air mass fraction in the exhaust manifold, estimating air mass fraction downstream the diesel oxidation catalyst as a function of said unburned fuel mass flow and said air mass fraction in the exhaust manifold, estimating oxygen concentration downstream the diesel oxidation catalyst as a function of the estimated air mass fraction downstream the diesel oxidation catalyst. | 02-24-2011 |
20110066354 | METHOD FOR REGENERATING A DIESEL PARTICULATE FILTER - A method is provided for regenerating a diesel particulate filter within a diesel engine system that includes, but is not limited to at least a combustion chamber defined by a reciprocating piston inside a cylinder, at least an exhaust valve for cyclically open the combustion chamber towards an exhaust line, and the diesel particulate filter located in the exhaust line, wherein the method comprises injecting an amount of fuel into the combustion chamber by means of least two consecutive after-injection pulses (AIP | 03-17-2011 |
20110112742 | METHOD FOR THE CONTROL OF A SWITCHABLE WATER PUMP IN AN INTERNAL COMBUSTION ENGINE - A method is provided for the control of a switchable water pump for a water cooling circuit in an internal combustion engine. The method includes, but is not limited to monitoring a parameter representative of the cylinder head temperature and, in case the temperature is below a predetermined value, perform at least an on-off cycle for the switchable water pump. The on-off cycle, includes, but is not limited to at least a first phase in which the water pump is switched OFF for a time period T | 05-12-2011 |
20110118952 | GLOWPLUG TEMPERATURE CONTROL METHOD AND DEVICE FOR THE REDUCTION OF EMISSIONS FROM A DIESEL ENGINE - A method is provided for reducing emissions behind a catalytic converter in an exhaust gas stream of the engine. The method includes, but is not limited to controlling a power supply to a glowplug of a compression-ignition engine. The glowplug is activated if a set of at least two input values remains in a first characteristic region of an input parameter space for at least a predetermined activation time. The first characteristic region consists of one ore more contiguous regions of the input parameter space. | 05-19-2011 |
20110125427 | METHOD FOR ESTIMATING EXHAUST MANIFOLD PRESSURE - A method is provided for estimating a pressure in an exhaust manifold of an internal combustion engine, the internal combustion engine having a combustion chamber with an associated exhaust valve, the method includes, but is not limited to acquiring pressure values within the combustion chamber during an acquisition period (AP) chosen within the time interval when the exhaust valve is open, and averaging the pressure values to obtain a single pressure value which is representative for the pressure in the exhaust manifold. | 05-26-2011 |
20130014734 | METHOD FOR OPERATING AN EGR COOLER IN AN INTERNAL COMBUSTION ENGINEAANM BARBERO; SimoneAACI TorinoAACO ITAAGP BARBERO; Simone Torino ITAANM TROMBLEY; DouglasAACI TorinoAACO ITAAGP TROMBLEY; Douglas Torino ITAANM CIANFLONE; FrancescoAACI TorinoAACO ITAAGP CIANFLONE; Francesco Torino ITAANM MONTINARO; GiovanniAACI San Pietro Vernotico (BR)AACO ITAAGP MONTINARO; Giovanni San Pietro Vernotico (BR) IT - A method for operating an EGR system in an Internal Combustion Engine (ICE) is provided. The EGR system includes an EGR valve for regulating an exhaust gas flow into an EGR cooler and a by-pass line for by-passing the EGR cooler. The method includes monitoring an index value indicative of a clogging condition of the EGR cooler, closing the exhaust gas flow in the EGR cooler if the index value exceeds a predefined threshold, and opening the exhaust gas flow in the EGR cooler if the index value is decreasing. | 01-17-2013 |
20140358400 | SYSTEM AND METHOD FOR CONTROLLING A POWERTRAIN SYSTEM TO PERFORM EXHAUST BRAKING - A system according to the principles of the present disclosure includes an exhaust braking enabling module, a driver torque module, and an engine actuator control module. The exhaust braking enabling module selectively enables exhaust braking based on driver input and independent of an accelerator pedal position. The driver torque module selectively determines a driver torque request based on a powertrain braking torque capacity when exhaust braking is enabled. The engine actuator control module controls fuel delivery to cylinders of an engine and a vane position of a turbocharger based on the driver torque request. | 12-04-2014 |
20150040859 | SYSTEM AND METHOD FOR CONTROLLING EXHAUST BRAKING IN A VEHICLE - A system and method can control exhaust braking in a vehicle. The vehicle includes an engine system. The engine system includes internal combustion engine, an intake manifold, a control module, an exhaust system, and a variable geometry turbocharger (VGT) having a turbine. The turbine includes turbine blades and vanes movable with respect to the turbine blades. The method includes the following: (a) receiving an exhaust brake torque request; (b) determining target pumping losses in the internal combustion engine based on the exhaust brake torque request; (c) determining a target exhaust gas pressure within the exhaust system based on the target pumping losses; and (d) determining a target vane position of the vanes based on the target exhaust gas pressure, wherein the target vane position yields an exhaust brake torque in accordance with the exhaust brake torque request. | 02-12-2015 |