F01N2900/12

POLLUTION HANDLING PROCESS AND SYSTEM FOR VEHICLES

The present invention is a method and system for collection of exhaust emissions installed in vehicles and disposal thereof, based on pollution conditions of the surrounding environment, said conditions identified either from sensors installed on the vehicles themselves, or by means of an external service, e.g. the Internet, cloud service, etc.

Method to Control a Burner for an Exhaust System of an Internal Combustion Engine

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.

Method to Control a Burner for an Exhaust System of an Internal Combustion Engine

A method to control an internal combustion engine provided with an exhaust system for the exhaust gases of a vehicle having an exhaust duct and an exhaust gas after-treatment system comprising at least one catalytic converter arranged along the exhaust duct; a burner suited to introduce the exhaust gases into the exhaust duct to speed up the heating of said at least one catalytic converter, wherein a combustion chamber is defined inside the burner which receives fuel from an injector, designed to inject the fuel inside the combustion chamber and the fresh air by means of an air feeding circuit provided with a pumping device that feeds the air, a shut-off valve arranged upstream of the burner and a mass air flow sensor interposed between the pumping device and the shut-off valve; the method provides the following steps: calculating the thermal power required to reach the nominal operating temperature of said at least one catalytic converter; determining the objective air flow rate to be fed to the burner to obtain said thermal power required to reach the nominal operating temperature of said at least one catalytic converter; determining the nominal number of revolutions with which to operate the pumping device by means of a map depending on the objective air flow rate, on the ambient pressure, on the ambient temperature and on the pressure of the air entering the burner; determining a closed-loop contribution of the number of revolutions with which to operate the pumping device by means of a PID controller which tries to zero a difference between the objective air flow rate and the air flow rate detected by the mass air flow sensor; determining a further contribution of the number of revolutions with which to operate the pumping device depending on the integral action of the PID controller under stationary conditions; and determining the actual number of revolutions with which to operate the pumping device by the sum of the nominal number of revolutions, the closed-loop contribution of the number of revolutions with which to operate the pumping device and the further contribution of the number of revolutions with which to operate the pumping device.

Control Device and Method for Discharging Condensed Water
20230020357 · 2023-01-19 ·

An embodiment control device for discharging condensed water includes a signal receiver configured to receive a power-starting off signal, a temperature receiver configured to receive outdoor air temperature information, and a controller configured to perform a condensed water discharge mode maintaining an engine under an idling condition during a preset power-starting maintenance period in response to the power-starting off signal being received by the signal receiver and the outdoor air temperature information received from the temperature receiver being equal to or lower than a set temperature value.

Hybrid vehicle with exhaust gas purifying unit and driving control method therefor

A hybrid vehicle includes an electric motor, an engine including an exhaust gas purifying unit, and an engine clutch disposed between the electric motor and the engine. A method of controlling the hybrid vehicle includes determining a driving environment condition including a first condition related to at least a driving load when a request for operating the exhaust gas purifying unit is received, determining a state of the engine clutch and an operation condition of the exhaust gas purifying unit when the exhaust gas purifying means operates according to the result of determining the driving environment condition, and operating the exhaust gas purifying unit while maintaining the determined state of the engine clutch when the driving environment condition is satisfied.

Method for analysing the operation of an anti-pollution system for a motor vehicle

The present invention relates to a method for analysing the operation of an anti-pollution system for a motor vehicle (1) with an internal combustion engine, said vehicle (1) comprising at least one sensor for measuring (110) a parameter of the vehicle (1) and an analysis computation means (140) directly connected to said measuring sensor (110), said analysis computation means (140) comprising a memory area, said method being characterised in that it comprises a step for using the measuring sensor (110) to measure at least one parameter of the vehicle (1), a step for using the measuring sensor (110) to transmit at least one digital datum representative of the measured value of the parameter to the analysis computation means (140) and a step for using the analysis computation means (140) to compare said digital datum with a predetermined range of values representative of an operation of the anti-pollution system according to a predetermined standard.

Methods and systems for engine exhaust catalyst operations

Methods and systems are provided for expediting exhaust catalyst light-off prior to an anticipated engine cold-start event. In one example, a method may include, in anticipation of an engine cold-start, preemptively operating an electric booster and routing compressed air to the catalyst to increase a temperature of the exhaust catalyst while maintaining the engine inactive.

ADJUST CONTROL STRATEGY BASED ON FAULT EVENTS COMBINED WITH PREDICTIVE DATA

A method for prevention of fault events on vehicles including: acquiring predictive data related to predictive events for a vehicle; processing the predictive data with a vehicle performance model adapted to relate specific predictive events to specific vehicle performance events; and adjusting a control strategy for the vehicle based on an outcome of the processing to at least reduce the risk that a specific vehicle performance event occurs when the vehicle reaches a corresponding specific predictive event.

SYSTEMS AND METHODS FOR CONTROLLING OPERATION OF HYBRID VEHICLES

A hybrid vehicle comprises an engine, an energy storage device, and an aftertreatment system comprising a SCR catalyst configured to treat constituents of an exhaust gas. A controller is operatively coupled to the engine, the energy storage device, and the after treatment system, and configured to estimate an exhaust gas temperature and flow rate of the exhaust gas based on a set of engine operating parameters. The controller determines an exhaust gas cooling rate based on the exhaust gas temperature, flow rate, and a SCR catalyst temperature, and an ambient cooling rate based on an ambient temperature, a vehicle speed and the catalyst temperature. The controller determines a SCR catalyst temperature change rate based on the exhaust gas and ambient cooling rates, and adjusts a load distribution between the engine and the energy storage device based on the SCR catalyst temperature change rate.

DIESEL EXHAUST FLUID DOSER PROTECTION DURING COLD AMBIENT TEMPERATURE CONDITIONS USING CYLINDER CUTOUT METHODS

A method includes determining that at least one diesel emissions fluid (DEF) doser of an exhaust aftertreatment system is likely frozen based on at least one of an ambient air temperature or a DEF source temperature; operating an engine in a cylinder cutout mode in response to the determination that the at least one DEF doser is likely frozen; and, discontinuing the cylinder cutout mode in response to determining that the at least one DEF doser is in a predefined condition.