Patents by Inventor Giorgio Sticchi
Giorgio Sticchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10883408Abstract: An automotive vehicle includes an internal combustion engine that combusts an air/fuel mixture thereby generating exhaust gas containing particulate matter, and an exhaust after-treatment component that collects the particulate matter. A regeneration system burns off the collected particulate matter thereby regenerating the exhaust after-treatment component. A controller obtains a model of the combustion that is based on a kinetic controlled combustion phase and a mixing controlled combustion phase, and determines a point on the model with respect to current engine conditions that indicates an amount of the particulate matter in the exhaust gas.Type: GrantFiled: August 22, 2018Date of Patent: January 5, 2021Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: David E. Edwards, Giorgio Sticchi, Andrea Dutto, Min Sun
-
Publication number: 20200063631Abstract: An automotive vehicle includes an internal combustion engine that combusts an air/fuel mixture thereby generating exhaust gas containing particulate matter, and an exhaust after-treatment component that collects the particulate matter. A regeneration system burns off the collected particulate matter thereby regenerating the exhaust after-treatment component. A controller obtains a model of the combustion that is based on a kinetic controlled combustion phase and a mixing controlled combustion phase, and determines a point on the model with respect to current engine conditions that indicates an amount of the particulate matter in the exhaust gas.Type: ApplicationFiled: August 22, 2018Publication date: February 27, 2020Inventors: David E. Edwards, Giorgio Sticchi, Andrea Dutto, Min Sun
-
Publication number: 20190368435Abstract: A method to control an internal combustion engine including exhaust gas recirculation (EGR) system and an air charging system includes the following steps: (a) determining, via an engine controller, a first EGR mass flow rate using an orifice model; (b) determining, via the engine controller, a second EGR mass flow rate using a cylinder volumetric efficiency model; (c) determining, via the engine controller, a hybrid EGR mass flow rate based on the first EGR flow rate and the second EGR flow rate; and (d) controlling the air charging system based on the hybrid EGR flow rate.Type: ApplicationFiled: May 31, 2018Publication date: December 5, 2019Applicant: GM Global Technology Operations LLCInventors: Nicola Totaro, Andrea Dutto, Giorgio Sticchi
-
Patent number: 10190521Abstract: A method of operating an internal combustion engine having a turbocharger for pressurizing an intake airflow and an after-treatment (AT) system including an AT device for reducing nitrogen oxides (NOX) concentration in the engine exhaust gas. The method includes operating the engine with a variable high-pressure exhaust gas recirculation (EGR) and low-pressure EGR split in the intake airflow. The method also includes determining the NOX concentration in the exhaust gas and determining a current high-pressure EGR to low-pressure EGR split in the intake airflow. The method additionally includes determining an EGR corrective factor using the determined current high-pressure EGR to low-pressure EGR split and applying the determined EGR corrective factor to the determined NOX concentration to generate a corrected NOX concentration. Furthermore, the method includes regulating operation of the AT system to treat the exhaust gas via the AT device in response to the generated corrected NOX concentration.Type: GrantFiled: May 30, 2017Date of Patent: January 29, 2019Assignee: GM Global Technology Operations LLCInventors: Giorgio Sticchi, Francesco Castorina, Andrea Dutto
-
Publication number: 20180347495Abstract: A method of operating an internal combustion engine having a turbocharger for pressurizing an intake airflow and an after-treatment (AT) system including an AT device for reducing nitrogen oxides (NOX) concentration in the engine exhaust gas. The method includes operating the engine with a variable high-pressure exhaust gas recirculation (EGR) and low-pressure EGR split in the intake airflow. The method also includes determining the NOX concentration in the exhaust gas and determining a current high-pressure EGR to low-pressure EGR split in the intake airflow. The method additionally includes determining an EGR corrective factor using the determined current high-pressure EGR to low-pressure EGR split and applying the determined EGR corrective factor to the determined NOX concentration to generate a corrected NOX concentration. Furthermore, the method includes regulating operation of the AT system to treat the exhaust gas via the AT device in response to the generated corrected NOX concentration.Type: ApplicationFiled: May 30, 2017Publication date: December 6, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Giorgio Sticchi, Francesco Castorina, Andrea Dutto
-
Patent number: 10138783Abstract: A computer program, system and method are provided for thermally regulating an injector injecting a reducing agent into an exhaust pipe of an internal combustion engine. A pump is activated to deliver a coolant in a coolant circuit having a portion in heat exchange relation with the injector. A value is determined for a mass flow rate of the coolant delivered by the pump. A value is calculated for a temperature of the injector as a function of the determined value of the mass flow rate. A difference is calculated between the calculated value of the injector temperature and a predetermined set-point value thereof, and the mass flow rate of the coolant delivered by the pump is adjusted on the basis of the calculated difference.Type: GrantFiled: August 15, 2016Date of Patent: November 27, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michele Bilancia, Giorgio Sticchi, Luis Daniel Guerrero Cruz, Stefano Cassani
-
Publication number: 20180156099Abstract: A method of measuring exhaust gas temperatures in an exhaust pipe of an internal combustion engine is disclosed. A value of a mass flow rate of exhaust gasses flowing into the exhaust pipe is determined. A signal yielded by a temperature sensor located in a first point of the exhaust pipe is sampled and applied as input to a first computational module that yields a corresponding first output signal. A value of the temperature of the exhaust gasses flowing in the first point of the exhaust pipe is calculated on the basis of a value of the first output signal.Type: ApplicationFiled: December 6, 2016Publication date: June 7, 2018Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrea DUTTO, Giorgio STICCHI, Michele ROSMARINO
-
Patent number: 9689778Abstract: A method of estimating a current soot output from an engine includes sensing a mass flow rate of a flow of exhaust gas from the engine, and defining a soot output base rate of the engine when the engine is operating at a reference state. A soot ratio for a current operating state of the engine is calculated. The mass flow rate, the soot output base rate, and the soot ratio are multiplied together to define an estimated value of the current soot output from the engine. The soot ratio is based on current engine operating parameters, including an air/fuel ratio of the engine, an exhaust gas recirculation ratio of the engine, a fuel injection pressure of the engine, and a fuel injection timing of the engine.Type: GrantFiled: January 30, 2014Date of Patent: June 27, 2017Assignee: GM Global Technology Operations LLCInventors: Min Sun, Michelangelo Ardanese, Michele Bilancia, Giorgio Sticchi
-
Publication number: 20170044951Abstract: A computer program, system and method are provided for thermally regulating an injector injecting a reducing agent into an exhaust pipe of an internal combustion engine. A pump is activated to deliver a coolant in a coolant circuit having a portion in heat exchange relation with the injector. A value is determined for a mass flow rate of the coolant delivered by the pump. A value is calculated for a temperature of the injector as a function of the determined value of the mass flow rate. A difference is calculated between the calculated value of the injector temperature and a predetermined set-point value thereof, and the mass flow rate of the coolant delivered by the pump is adjusted on the basis of the calculated difference.Type: ApplicationFiled: August 15, 2016Publication date: February 16, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michele BILANCIA, Giorgio STICCHI, Luis Daniel GUERRERO CRUZ, Stefano CASSANI
-
Publication number: 20150211962Abstract: A method of estimating a current soot output from an engine includes sensing a mass flow rate of a flow of exhaust gas from the engine, and defining a soot output base rate of the engine when the engine is operating at a reference state. A soot ratio for a current operating state of the engine is calculated. The mass flow rate, the soot output base rate, and the soot ratio are multiplied together to define an estimated value of the current soot output from the engine. The soot ratio is based on current engine operating parameters, including an air/fuel ratio of the engine, an exhaust gas recirculation ratio of the engine, a fuel injection pressure of the engine, and a fuel injection timing of the engine.Type: ApplicationFiled: January 30, 2014Publication date: July 30, 2015Applicant: GM Global Technology Operations LLCInventors: Min Sun, Michelangelo Ardanese, Michele Bilancia, Giorgio Sticchi