A method is disclosed to control an exhaust gas after-treatment system with at least one catalytic converter arranged along an exhaust duct and a burner, which is suited to introduce exhaust gases into the exhaust duct, wherein inside the burner there is defined a combustion chamber, which receives fresh air through an air feeding circuit and fuel from an injector; the method comprises housing a temperature and pressure sensor interposed between a pumping device and the burner or leaving the burner; acquiring the pressure signal generated by the combustion inside the combustion chamber and detected by said temperature and pressure sensor; and controlling the combustion inside the combustion chamber as a function of said pressure signal.

A method is disclosed to control an exhaust gas after-treatment system with at least one catalytic converter arranged along an exhaust duct and a burner, which is suited to introduce exhaust gases into the exhaust duct, wherein inside the burner there is defined a combustion chamber, which receives fresh air through an air feeding circuit and fuel from an injector; the method comprises housing a temperature and pressure sensor interposed between a pumping device and the burner or leaving the burner; acquiring the pressure signal generated by the combustion inside the combustion chamber and detected by said temperature and pressure sensor; and controlling the combustion inside the combustion chamber as a function of said pressure signal.

An exhaust-gas burner for an exhaust-gas system of a motor vehicle includes a combustion chamber, which is surrounded by an outer wall, for a channel section in an exhaust-gas system. A dosing unit is provided for the controlled feed of a fuel into the combustion chamber. An ignition unit is provided for the ignition of a combustible mixture in the combustion chamber. A cooling circuit is provided for the exchange of heat with the dosing unit, and is arranged within the outer wall of the exhaust-gas burner.

An exhaust-gas burner for an exhaust-gas system of a motor vehicle includes a combustion chamber, which is surrounded by an outer wall, for a channel section in an exhaust-gas system. A dosing unit is provided for the controlled feed of a fuel into the combustion chamber. An ignition unit is provided for the ignition of a combustible mixture in the combustion chamber. A cooling circuit is provided for the exchange of heat with the dosing unit, and is arranged within the outer wall of the exhaust-gas burner.

An exhaust gas cleaning component, having a housing with an inflow port and an outflow port, a first honeycomb structure in the housing with a casing, the casing having an outer surface over which exhaust gas can flow, and also having an applicator device by which an exhaust gas cleaning additive can be applied to the outer surface of the casing.

An exhaust gas cleaning component, having a housing with an inflow port and an outflow port, a first honeycomb structure in the housing with a casing, the casing having an outer surface over which exhaust gas can flow, and also having an applicator device by which an exhaust gas cleaning additive can be applied to the outer surface of the casing.

An exhaust gas control system includes an upstream purification device disposed in an exhaust passage of the internal combustion engine, a downstream purification device disposed in a portion of the exhaust passage downstream from the upstream purification device, a fuel addition valve disposed in a portion of the exhaust passage upstream from the upstream purification device, and a urea addition valve disposed in a portion of the exhaust passage between the upstream purification device and the downstream purification device, and a cooling device. The cooling device is configured such that refrigerant cools the fuel addition valve first and then cools the urea addition valve subsequent to the fuel addition valve.

Methods and systems are provided for a fuel system. In one example, a method includes flowing fuel tank vapors to a catalyst during a fuel tank depressurization in response to a refueling request. The method further includes executing an engine vapor flush following a refueling event being completed.

Methods and systems are provided for a fuel system. In one example, a method includes flowing fuel tank vapors to a catalyst during a fuel tank depressurization in response to a refueling request. The method further includes executing an engine vapor flush following a refueling event being completed.

A method to control an internal combustion engine having an exhaust duct and an exhaust gas after-treatment system comprising at least one catalytic converter arranged along the exhaust duct; an oxygen sensor housed along the exhaust duct and arranged upstream of said at least one catalytic converter; and a burner suited to introduce the exhaust gases into the exhaust duct upstream of the oxygen sensor the method provides the steps of calculating the thermal power required to reach the nominal operating temperature of said at least one catalytic converter obtained with an objective value of the air/fuel ratio value; and determining both the objective fuel flow rate and the objective air flow rate to be fed to the burner to obtain the thermal power required to reach the nominal operating temperature of said at least one catalytic converter.