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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 26. Отображено 25.
13-06-2017 дата публикации

Fuel rail pressure control systems and methods

Номер: US0009677495B2
Автор: Jonathan T. Shibata, Joshua D. Cowgill, Daniel Sabathil, David P. Sczomak, SHIBATA JONATHAN T, COWGILL JOSHUA D, SABATHIL DANIEL, SCZOMAK DAVID P, Shibata Jonathan T., Cowgill Joshua D., Sabathil Daniel, Sczomak David P.
Принадлежит: GM Global Technology Operations LLC, SHIBATA JONATHAN T, COWGILL JOSHUA D, SABATHIL DANIEL, SCZOMAK DAVID P, GM GLOBAL TECH OPERATIONS LLC, Shibata Jonathan T., Cowgill Joshua D., Sabathil Daniel, Sczomak David P.

A fuel control system includes a target rail pressure module. The target rail pressure module determines a target fuel rail pressure of a fuel rail of a direct injection engine. An offset module determines an offset value based on an engine speed of the direct injection engine and at least one of an engine load and an air per cylinder. A modifier module determines a modifier value based on a temperature of the direct injection engine. A rail pressure control module adjusts a current fuel rail pressure of the fuel rail based on the target fuel rail pressure, the offset value and the modifier value.

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Номер записи: 1
25-05-2017 дата публикации

SYSTEM AND METHOD FOR ENGINE COMBUSTION

Номер: US20170145949A1
Автор: David P. Sczomak, Robert J. Gallon, Arun S. Solomon, SCZOMAK DAVID P, GALLON ROBERT J, SOLOMON ARUN S, Sczomak David P., Gallon Robert J., Solomon Arun S.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A combustion system for use with one or more cylinder bores of an internal combustion engine includes at least one cylinder head defining first and second intake ports in fluid communication with the one or more cylinder bores. A flap is adjustably connected to the at least one cylinder head. The flap includes a first flap portion cooperating with the first intake port extending from an arm and a second flap portion cooperating with the second intake port extending from the arm and disposed adjacent the first flap portion. A controller in electrical communication with an actuator monitors the condition of the engine and actuates the flap to position the first and second flap portions between first and second positions to create a first combustion condition and a second combustion condition. 1. An internal combustion engine comprising:a block defining a crankcase chamber and at least one bore extending from and in fluid communication with the crankcase chamber;at least one cylinder head attached to the block, the at least one cylinder head defining a first intake port and a second intake port, wherein each of the first and second intake ports includes a first end having an opening provided therein, an opposing second end in fluid communication with the one or more cylinder bores and an inner periphery defined between the first and second ends;a flap adjustably connected to the at least one cylinder head having a first flap portion cooperating with the first intake port removably secured to and extending from an arm and a second flap portion cooperating with the second intake port that is removably secured to and extends from the arm and disposed adjacent the first flap portion;an actuator operatively connected to the arm of the flap to position the first and second flap portions to create a first combustion condition and a second combustion condition; anda controller in electrical communication with the actuator configured to monitor the condition of the engine and ...

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Номер записи: 2
04-07-2017 дата публикации

System and method for adjusting fuel injection parameters during transient events to reduce particulate emissions

Номер: US0009695772B2
Автор: Robert S. Levy, David P. Sczomak, Michael J. Lucido, Jonathan T. Shibata, LEVY ROBERT S, SCZOMAK DAVID P, LUCIDO MICHAEL J, SHIBATA JONATHAN T, Levy Robert S., Sczomak David P., Lucido Michael J., Shibata Jonathan T.
Принадлежит: GM Global Technology Operations LLC, GM GLOBAL TECH OPERATIONS LLC

A system according to the present disclosure includes a fuel control module and at least one of a desired air per cylinder (APC) module and a predicted manifold absolute pressure (MAP) module. The desired APC module determines a desired amount of airflow to each cylinder of an engine. The predicted MAP module predicts a pressure within an intake manifold of the engine at a future time. The fuel control module selectively adjusts a fuel injection parameter of the engine based on at least one of: a change in the desired air per cylinder from a first time to a second time; and a change in the predicted manifold pressure from the first time to the second time.

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Номер записи: 3
18-04-2017 дата публикации

System and method for enabling a user to adjust the operation of a powertrain in a vehicle, to adjust the appearance of a user interface device in the vehicle, and/or to adjust vehicle noise

Номер: US0009629189B2
Автор: David P. Sczomak, Robert S. Levy, SCZOMAK DAVID P, LEVY ROBERT S, Sczomak David P., Levy Robert S.
Принадлежит: GM Global Technology Operations LLC, GM GLOBAL TECH OPERATIONS LLC

A system according to the principles of the present disclosure includes a communication module and a control module. The communication module transmits a first wireless signal indicating a request from a user of a vehicle to adjust operation of a powertrain in the vehicle, a display in the vehicle, and/or a noise actuator in the vehicle. The communication module receives a second wireless signal enabling operation of the powertrain, the display, and/or the noise actuator to be adjusted according to the request. The control module controls the powertrain, the display, and/or the noise actuator based on a first set of values for a control parameter before the second wireless signal is received. The control module controls the powertrain, the display, and/or the noise actuator based on a second set of values for the control parameter after the second wireless signal is received.

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Номер записи: 4
13-03-2018 дата публикации

System and method for engine combustion

Номер: US0009915221B2
Автор: David P. Sczomak, Robert J. Gallon, Arun S. Solomon, SCZOMAK DAVID P, GALLON ROBERT J, SOLOMON ARUN S, Sczomak David P., Gallon Robert J., Solomon Arun S.
Принадлежит: GM Global Technology Operations LLC, GM GLOBAL TECH OPERATIONS LLC, GM GLOBAL TECHNOLOGY OPERATIONS LLC

A combustion system for use with one or more cylinder bores of an internal combustion engine includes at least one cylinder head defining first and second intake ports in fluid communication with the one or more cylinder bores. A flap is adjustably connected to the at least one cylinder head. The flap includes a first flap portion cooperating with the first intake port extending from an arm and a second flap portion cooperating with the second intake port extending from the arm and disposed adjacent the first flap portion. A controller in electrical communication with an actuator monitors the condition of the engine and actuates the flap to position the first and second flap portions between first and second positions to create a first combustion condition and a second combustion condition.

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Номер записи: 5
05-04-2012 дата публикации

SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION TIMING TO DECREASE EMISSIONS DURING TRANSIENT ENGINE OPERATION

Номер: US20120080009A1
Автор: COWGILL Joshua D., Sczomak David P., SHIBATA Jonathan T., Waldman John Ogalla
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS, INC.

A control system for an engine includes an injection timing adjustment module and an injection control module. The injection timing adjustment module generates an adjusted fuel injection timing when a fuel request is received and the engine is operating in a transient state, wherein the adjusted fuel injection timing is based on a base fuel injection timing, an elapsed time since the fuel request, and at least one of a plurality of engine operating parameters. The injection control module controls fuel injection based on the adjusted fuel injection timing for a period, and controls fuel injection based on the base fuel injection timing after the period. 1. A control system for an engine , comprising:an injection timing adjustment module that generates an adjusted fuel injection timing when a fuel request is received and the engine is operating in a transient state, wherein the adjusted fuel injection timing is based on a base fuel injection timing, an elapsed time since the fuel request, and at least one of a plurality of engine operating parameters; andan injection control module that controls fuel injection based on the adjusted fuel injection timing for a period, and that controls fuel injection based on the base fuel injection timing after the period.2. The control system of claim 1 , wherein the plurality of engine operating parameters include throttle position claim 1 , engine load claim 1 , engine speed claim 1 , and engine coolant temperature.3. The control system of claim 1 , wherein the injection control module controls fuel injection based on the base fuel injection timing when the engine transitions from transient operation to steady-state operation.4. The control system of claim 3 , wherein the steady-state operation includes periods when mass air flow (MAF) into the engine has changed less than a predetermined amount for during predetermined period.5. The control system of claim 1 , wherein the period is a predetermined period.6. The control system of ...

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Номер записи: 6
02-01-2014 дата публикации

ENGINE STARTUP METHOD

Номер: US20140005913A1
Автор: Gallon Robert J, MOON JOSEPH J., Sczomak David P.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for starting an engine includes sensing a triggering event and monitoring pressure in a fuel rail. A cam shaft of the engine is oscillated with a cam phaser. The cam shaft does not complete a full rotation during the oscillation. A fuel rail pump is operated with the oscillating cam shaft until the monitored pressure in the fuel rail reaches a minimum level, and the engine is started after reaching the minimum level. 1. A method for starting an engine having a fuel rail , comprising:sensing a triggering event;monitoring pressure in the fuel rail;oscillating a cam shaft of the engine with a cam phaser, wherein the cam shaft does not complete a full rotation during oscillation;operating a fuel rail pump with the oscillating cam shaft until the monitored pressure in the fuel rail reaches a minimum level; andstarting the engine after the monitored pressure reaches the minimum level.2. The method of claim 1 , further comprising:monitoring for an operator startup request; and operating the fuel rail pump with the oscillating cam shaft until the monitored pressure in the fuel rail reaches a target level, wherein the target level is greater than the minimum level; and', 'starting the engine after the monitored pressure reaches the target level., 'after reaching the minimum level, if no operator startup request has occurred3. The method of claim 2 , further comprising claim 2 , after reaching the target level and if no operator startup request has occurred:operating the fuel rail pump with the oscillating cam shaft until the monitored pressure in the fuel rail reaches a maximum level, wherein the maximum level is greater than the target level;stopping the fuel rail pump;operating the fuel rail pump with the oscillating cam shaft if the monitored pressure in the fuel rail drops below the target level, such that the monitored pressure is held substantially between the target level and the maximum level; andstarting the engine after the operator startup request occurs. ...

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Номер записи: 7
13-03-2014 дата публикации

SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION IN AN ENGINE BASED ON PISTON TEMPERATURE

Номер: US20140074381A1
Автор: COWGILL Joshua D., Sczomak David P., SHIBATA Jonathan T.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system according to the principles of the present disclosure includes a temperature estimation module and a fuel control module. The temperature estimation module estimates a piston temperature associated with a cylinder based on engine operating conditions. The fuel control module controls at least one of injection timing associated with the cylinder, injection pressure associated with a cylinder, injection location associated with a cylinder, and a number of injections per engine cycle associated with the cylinder based on the piston temperature. 1. A system comprising:a temperature estimation module that estimates a piston temperature associated with a cylinder based on engine operating conditions; anda fuel control module that controls at least one of injection timing associated with the cylinder, injection pressure associated with the cylinder, injection location associated with the cylinder, and a number of injections per engine cycle associated with the cylinder based on the piston temperature.2. The system of wherein the fuel control module retards the injection timing when the piston temperature is less than a predetermined temperature.3. The system of wherein the fuel control module commands multiple injections per engine cycle when the piston temperature is less than a predetermined temperature.4. The system of wherein the temperature estimation module estimates the piston temperature based on engine speed claim 1 , engine load claim 1 , and an air/fuel ratio.5. The system of wherein the temperature estimation module estimates the piston temperature further based on intake air temperature claim 4 , engine coolant temperature claim 4 , and spark timing.6. The system of wherein the piston temperature is directly proportional to the engine speed claim 4 , the engine load claim 4 , and the air/fuel ratio.7. The system of further comprising a temperature filter module that filters the piston temperature using a lag filter.8. The system of wherein the lag ...

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Номер записи: 8
24-03-2016 дата публикации

SYSTEM AND METHOD FOR ADJUSTING FUEL INJECTION PARAMETERS DURING TRANSIENT EVENTS TO REDUCE PARTICULATE EMISSIONS

Номер: US20160084192A1
Автор: Levy Robert S., Lucido Michael J., Sczomak David P., SHIBATA Jonathan T.
Принадлежит:

A system according to the present disclosure includes a fuel control module and at least one of a desired air per cylinder (APC) module and a predicted manifold absolute pressure (MAP) module. The desired APC module determines a desired amount of airflow to each cylinder of an engine. The predicted MAP module predicts a pressure within an intake manifold of the engine at a future time. The fuel control module selectively adjusts a fuel injection parameter of the engine based on at least one of: a change in the desired air per cylinder from a first time to a second time; and a change in the predicted manifold pressure from the first time to the second time. 1. A system comprising: a desired air per cylinder (APC) module that determines a desired amount of airflow to each cylinder of an engine; and', 'a predicted manifold absolute pressure (MAP) module that predicts a pressure within an intake manifold of the engine at a future time; and, 'at least one of a change in the desired air per cylinder from a first time to a second time; and', 'a change in the predicted manifold pressure from the first time to the second time., 'a fuel control module that selectively adjusts a fuel injection parameter of the engine based on at least one of2. The system of wherein the fuel control module adjusts the fuel injection parameter further based on a measured engine speed at the first time and an actual air per cylinder at the first time.3. The system of further comprising an actual air per cylinder (APC) module that determines the actual air per cylinder based on a measured mass flow rate of air flowing to the intake manifold at the first time and a number of cylinders in the engine.4. The system of wherein the fuel control module adjusts the fuel injection parameter further based on a change in an average value of at least one of the desired air per cylinder and the predicted manifold pressure over a predetermined number of engine cycles.5. The system of wherein the fuel injection ...

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Номер записи: 9
19-05-2016 дата публикации

SYSTEM AND METHOD FOR ENABLING A USER TO ADJUST THE OPERATION OF A POWERTRAIN IN A VEHICLE, TO ADJUST THE APPEARANCE OF A USER INTERFACE DEVICE IN THE VEHICLE, AND/OR TO ADJUST VEHICLE NOISE

Номер: US20160138508A1
Автор: Levy Robert S., Sczomak David P.
Принадлежит:

A system according to the principles of the present disclosure includes a communication module and a control module. The communication module transmits a first wireless signal indicating a request from a user of a vehicle to adjust operation of a powertrain in the vehicle, a display in the vehicle, and/or a noise actuator in the vehicle. The communication module receives a second wireless signal enabling operation of the powertrain, the display, and/or the noise actuator to be adjusted according to the request. The control module controls the powertrain, the display, and/or the noise actuator based on a first set of values for a control parameter before the second wireless signal is received. The control module controls the powertrain, the display, and/or the noise actuator based on a second set of values for the control parameter after the second wireless signal is received. 1. A system comprising: transmits a first wireless signal indicating a request from a user of a vehicle to adjust operation of at least one of a powertrain in the vehicle, a display in the vehicle, and a noise actuator in the vehicle; and', 'receives a second wireless signal enabling operation of the at least one of the powertrain, the display, and the noise actuator to be adjusted according to the request; and, 'a communication module that controls the at least one of the powertrain, the display, and the noise actuator based on a first set of values for a control parameter before the second wireless signal is received; and', 'controls the at least one of the powertrain, the display, and the noise actuator based on a second set of values for the control parameter after the second wireless signal is received., 'a control module that2. The system of wherein the control parameter affects at least one of an amount of torque produced by an engine claim 1 , fuel economy of the vehicle claim 1 , and an ability of the engine to start.3. The system of wherein the control parameter includes at least one ...

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Номер записи: 10
24-05-2018 дата публикации

SPARK-IGNITED DIRECT-INJECTION ENGINE COMBUSTION SYSTEMS

Номер: US20180142607A1
Автор: Sczomak David P., Solomon Arun S., SPRUIT William F.
Принадлежит:

A direct-injection stratified charge internal combustion engine includes a combustion cylinder to receive an air-fuel mixture, and an air intake port to inlet air into the combustion cylinder. The direct-injection engine also includes a fuel injector configured to deliver fuel within the cylinder in a spray pattern substantially aligned to a cylinder central axis to create the air-fuel mixture. A spark igniter is located within a path of the spray pattern to ignite combustion of the air-fuel mixture. The dire-injection engine further includes a movable piston defining a lower boundary of the combustion cylinder to contain the combustion of the air-fuel mixture. The piston is configured to include a bowl portion having local geometric features located on an intake port side of the combustion cylinder to redirect fluid flow towards a vortex in fluid communication with a combustion location near the cylinder central axis. 1. A direct-injection stratified charge internal combustion engine comprising:a combustion cylinder to receive an air-fuel mixture;an air intake port to inlet air into the combustion cylinder;a fuel injector configured to deliver fuel within the cylinder in a spray pattern substantially aligned to a cylinder central axis to create the air-fuel mixture;a spark igniter located within a path of the spray pattern to ignite combustion of the air-fuel mixture; anda movable piston defining a lower boundary of the combustion cylinder to contain the combustion of the air-fuel mixture, wherein the piston includes a bowl portion having an angled re-entrant edge located on an intake port side of the combustion cylinder to redirect fluid flow towards a vortex in fluid communication with a combustion location near the cylinder central axis.2. The direct-injection engine of wherein the bowl portion is asymmetric relative to the cylinder central axis claim 1 , the bowl portion defining a first opening edge on the intake port side of the combustion cylinder that is ...

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Номер записи: 11
13-07-2017 дата публикации

Engine control systems and methods for nitrogen oxide reduction

Номер: US20170198652A1
Автор: Arun S. Solomon, David P. Sczomak, Robert J. Gallon, Robert S. McAlpine
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A fuel control module controls fuel injection of an engine based on a predetermined lean air/fuel ratio. The predetermined lean air/fuel ratio is fuel lean relative to a stoichiometric air/fuel ratio for the fuel. A cylinder control module selectively deactivates opening of intake and exhaust valves of M cylinders of the engine to increase removal of nitrogen oxide (NOx) from exhaust. M is an integer greater than 0 and less than a total number of cylinders of the engine. The fuel control module further: disables fueling of the M cylinders while opening of the intake and exhaust valves of the M cylinders is deactivated; and, while fueling of the M cylinders is disabled and opening of the intake and exhaust valves of the M cylinders is deactivated, controls fuel injection of other cylinders based on a predetermined rich air/fuel ratio that is fuel rich relative to the stoichiometric air/fuel ratio.

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Номер записи: 12
24-08-2017 дата публикации

DEDICATED EXHAUST GAS RECIRCULATION CONTROL SYSTEMS AND METHODS

Номер: US20170241364A1
Автор: Keating Edward J., NARAYANASWAMY Kushal, Sczomak David P.
Принадлежит:

An engine control system of a vehicle includes a fuel control module that controls fuel injection of a first cylinder of an engine based on a first target air/fuel ratio that is fuel lean relative to a stoichiometric air/fuel ratio and that controls fuel injection of a second cylinder of the engine based on a second target air/fuel ratio that is fuel rich relative to stoichiometry. The first cylinder outputs exhaust to a first three way catalyst (TWC), and the second cylinder outputs exhaust to an exhaust gas recirculation (EGR) valve. An EGR control module controls opening of the EGR valve to: (i) a second TWC that reacts with nitrogen oxides (NOx) in the exhaust and outputs ammonia to a selective catalytic reduction (SCR) catalyst; and (ii) a conduit that recirculates exhaust back to an intake system of the engine. 1. An engine control system of a vehicle , comprising:a fuel control module that controls fuel injection of a first cylinder of an engine based on a first target air/fuel ratio that is fuel lean relative to a stoichiometric air/fuel ratio and that controls fuel injection of a second cylinder of the engine based on a second target air/fuel ratio that is fuel rich relative to stoichiometry,wherein the first cylinder outputs exhaust to a first three way catalyst (TWC), andwherein the second cylinder outputs exhaust to an exhaust gas recirculation (EGR) valve; and (i) a second TWC that reacts with nitrogen oxides (NOx) in the exhaust and outputs ammonia to a selective catalytic reduction (SCR) catalyst; and', '(ii) a conduit that recirculates exhaust back to an intake system of the engine., 'an EGR control module that controls opening of the EGR valve to2. The engine control system of wherein the fuel control module decreases the second target air/fuel ratio to richen fueling of the second cylinder when NOx measured using a NOx sensor downstream of the SCR catalyst is greater than a target NOx at the NOx sensor.3. The engine control system of wherein the ...

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Номер записи: 13
05-12-2019 дата публикации

CATALYST TEMPERATURE MAINTENANCE SYSTEMS AND METHODS

Номер: US20190368437A1
Автор: JR. Gerald A., NARAYANASWAMY Kushal, Sczomak David P., Solomon Arun S., Szekely
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A catalyst temperature control system of a vehicle includes a fuel control module configured to control fuel injection based on a target air/fuel ratio that is fuel lean relative to a stoichiometric air/fuel ratio and a target fuel injection start timing. An exhaust gas recirculation (EGR) control module is configured to control an EGR valve based on a target EGR opening. An adjustment module is configured to, when a temperature of a catalyst in an exhaust system is less than a sum of a predetermined light-out temperature of the catalyst and a predetermined temperature and the target air/fuel ratio is fuel lean relative to the stoichiometric air/fuel ratio, based on a comparison of an engine speed and a predetermined engine speed, selectively adjust at least one of: a target throttle opening, a target spark timing, the target fuel injection start timing, the target air/fuel ratio, and the target EGR opening. 1. A catalyst temperature control system of a vehicle , comprising:a fuel control module configured to control fuel injection of an engine based on a target air/fuel ratio that is fuel lean relative to a stoichiometric air/fuel ratio and a target fuel injection start timing;a spark control module configured to control spark timing of the engine based on a target spark timing;an exhaust gas recirculation (EGR) control module configured to, based on a target EGR opening, control opening of an EGR valve that recirculates exhaust from an exhaust system of the engine back to an intake system of the engine;a throttle control module configured to control opening of a throttle valve based on a target throttle opening; and the target throttle opening;', 'the target spark timing;', 'the target fuel injection start timing;', 'the target air/fuel ratio; and', 'the target EGR opening., 'an adjustment module configured to, when a temperature of a catalyst in the exhaust system of the engine is less than a sum of a predetermined light-out temperature of the catalyst and a ...

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Номер записи: 14
24-08-2010 дата публикации

Idle stability improvement for direct injected engines

Номер: US7779810B2
Автор: David P. Sczomak, James R. Reeder, Jr., Jesse M. Gwidt, Michael J. Lucido
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A fuel injection method for internal combustion engines with gasoline direct fuel injection systems comprises receiving a crankshaft position signal from a crankshaft position sensor. A position of a crankshaft is determined from the crankshaft position signal. Fuel is commanded at a first rate when the position of the crankshaft is within a first selectable range during a combustion cycle of an engine cylinder and fuel is commanded at a second rate when the position of the crankshaft is within a second selectable range during the combustion cycle of the engine cylinder.

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Номер записи: 15
15-05-1990 дата публикации

Poppet covered orifice fuel injection nozzle

Номер: CA1269003A
Автор: David P. Sczomak
Принадлежит: Motors Liquidation Co

POPPET COVERED ORIFICE FUEL INJECTION NOZZLE Abstract of the Disclosure A poppet covered orifice fuel injector nozzle for use in a direct injection type diesel engine has a spray tip with a spring biased poppet valve journaled for reciprocable movement therein, the lower reduced diameter free end of the spray tip and the head of the poppet valve having opposed frusto-conical valve seat surfaces with a differential angle of about 2° so that seating engagement occurs at the outer peripheral edges thereof. The poppet valve has a fuel supply passage extending through the stem thereof for flow communication with a plurality of circumferentially spaced apart radial orifices that are inclined and located so as to discharge fuel parallel to and directly across the valve seat surface of the poppet valve.

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Номер записи: 16
27-06-2019 дата публикации

Method for controlling fuel rail pressure

Номер: DE102012000691B4
Автор: Daniel Sabathil, David P. Sczomak, Jonathan T. Shibata, Joshua D. Cowgill
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Kraftstoffsteuerverfahren, das umfasst, dass:ein Ziel-Kraftstoffleistendruck einer Kraftstoffleiste (72) eines Motors (12) mit Direkteinspritzung basierend auf einer Motordrehzahl des Motors (12) mit Direkteinspritzung und basierend auf einer Motorlast und/oder einer Luft pro Zylinder (16) ermittelt wird;ein Offsetwert basierend auf der Motordrehzahl und basierend auf der Motorlast und/oder der Luft pro Zylinder (16) ermittelt wird;ein Modifikatorwert basierend auf einer Temperatur des Motors (12) mit Direkteinspritzung ermittelt wird;dann, wenn die Temperatur größer als eine vorbestimmte Temperatur oder gleich dieser ist, in einem ersten Modus gearbeitet wird;dann, wenn die Temperatur kleiner als die vorbestimmte Temperatur ist, in einem zweiten Modus gearbeitet wird;während des Betriebs in dem ersten und in dem zweiten Modus eine momentane Kraftstoffmenge, die den Zylindern (16) des Motors (12) zugeführt wird, aufrechterhalten wird;während in dem zweiten Modus gearbeitet wird und die momentane den Zylindern (16) zugeführte Kraftstoffmenge aufrechterhalten wird, ein momentaner Kraftstoffleistendruck der Kraftstoffleiste (72) basierend auf dem Ziel-Kraftstoffleistendruck, dem Offsetwert und dem Modifikatorwert angepasst wird; undwährend in dem ersten Modus gearbeitet wird und die momentane den Zylindern (16) zugeführte Kraftstoffmenge aufrechterhalten wird, der momentane Kraftstoffleistendruck der Kraftstoffleiste (72) basierend auf dem Ziel-Kraftstoffleistendruck und nicht basierend auf dem Offsetwert und dem Modifikatorwert angepasst wird. A fuel control method, comprising: determining a target fuel rail pressure of a fuel rail (72) of a direct injection engine (12) based on engine speed of the direct injection engine (12) based on engine load and / or air per cylinder (16) An offset value is determined based on engine speed and based on engine load and / or air per cylinder (16), a modifier value is determined based on a temperature of the direct injection engine ...

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Номер записи: 17
05-12-2019 дата публикации

SYSTEMS AND METHOD FOR MAINTAINING THE CATALYST TEMPERATURE

Номер: DE102019112205A1
Автор: Arun S. Solomon, David P. Sczomak, Gerald A. Szekely JR., Kushal Narayanaswamy
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Katalysator-Temperatursteuerungssystem eines Fahrzeugs beinhaltet ein Kraftstoffsteuermodul, das konfiguriert ist, um die Kraftstoffeinspritzung basierend auf einem Soll-Luft-/Kraftstoff-Verhältnis zu steuern, das in Bezug auf ein stöchiometrisches Luft-/Kraftstoff-Verhältnis und einen Soll-Einspritzstartzeitpunkt ein magerer Kraftstoff ist. Ein Abgasrückführungs-(AGR)-Steuermodul ist konfiguriert, um ein AGR-Ventil basierend auf einer Soll-AGR-Öffnung zu steuern. Ein Einstellmodul ist konfiguriert, um, wenn eine Temperatur eines Katalysators in einem Abgassystem geringer ist als die Summe einer vorgegebenen Aussetzungstemperatur des Katalysators und einer vorgegebenen Temperatur und das Soll-Luft-/Kraftstoffverhältnis relativ zum stöchiometrischen Luft-/Kraftstoffverhältnis, basierend auf einem Vergleich einer Motordrehzahl und einer vorgegebenen Motordrehzahl, selektives Einstellen mindestens eines der Folgenden: einer Soll-Drosselklappenöffnung; eines Sollzündzeitpunkts; des Soll-Kraftstoffeinspritzstarts, des Soll-Luft-/Kraftstoffverhältnisses; und der Soll-AGR-Öffnung. A catalyst temperature control system of a vehicle includes a fuel control module configured to control fuel injection based on a desired air / fuel ratio that is leaner with respect to a stoichiometric air / fuel ratio and a desired injection start time Fuel is. An exhaust gas recirculation (EGR) control module is configured to control an EGR valve based on a desired EGR opening. An adjustment module is configured to, when a temperature of a catalyst in an exhaust system is less than the sum of a predetermined suspension temperature of the catalyst and a predetermined temperature and the desired air / fuel ratio relative to the stoichiometric air / fuel ratio, based on a comparison Engine speed and a predetermined engine speed, selectively setting at least one of: a desired throttle opening; a Sollzündzeitpunkts; the target fuel injection start, the target air / fuel ratio; and the desired ...

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Номер записи: 18
23-11-2006 дата публикации

Verfahren zum Berechnen der Zylinderfüllung während des Startens

Номер: DE102006022579A1
Автор: David P. Troy Sczomak, Douglas R. Sterling Heights Verner, Kenneth J. Brighton Buslepp
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein System und ein Verfahren zum Steuern der Kraftstoffabgabe an einen Motor beim Starten, bei denen ein Kurbelwinkelsensor vorgesehen ist, der die Drehposition des Motors bestimmt. Ein Steuermodul berechnet anhand der Drehposition des Motors die Luftmasse eines ersten Zylinders und gibt auf der Grundlage der Luftmasse Kraftstoff an den Motor ab. Die Luftmasse basiert auf dem Volumen, dem Druck und der Temperatur des ersten Zylinders.

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Номер записи: 19
25-06-2009 дата публикации

Hochdruckpumpenbestätigung in einem Fahrzeug

Номер: DE102008061628A1
Автор: David P. Troy Sczomak, Jesse M. Brighton Gwidt, Stuart R. Howell Smith
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Antriebssystem umfasst eine Welle in Dreheingriff mit einer Kurbelwelle einer Brennkraftmaschine, wobei die Welle einen ersten Nocken mit einer ersten Anzahl an Buckeln; und einen zweiten Nocken mit einer zweiten Anzahl an Buckeln, die größer als die erste Anzahl an Buckeln ist; und einen Wahlmechanismus zum selektiven Ineingriffbringen eines Stößels mit dem ersten Nocken oder dem zweiten Nocken umfasst. Ein Verfahren umfasst das Drehen einer Welle, die einen ersten Nocken und einen zweiten Nocken aufweist; das Überwachen von Betriebsparametern eines Fahrzeugs; das Betreiben einer Kraftstoffpumpe des Fahrzeugs bei einer Sollleistung beruhend auf dem Überwachen, einschließlich des selektiven Ineingriffbringens der Kraftstoffpumpe mit dem ersten Nocken oder dem zweiten Nocken.

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Номер записи: 20
13-07-2017 дата публикации

Motorsteuerungssysteme und Verfahren zur Reduzierung von Stickstoffoxiden

Номер: DE102017100129A1
Автор: Arun S. Solomon, David P. Sczomak, Robert J. Gallon, Robert S. McAlpine
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Kraftstoffsteuermodul steuert die Kraftstoffeinspritzung eines Motors basierend auf einem vorgegebenen kraftstoff-/luftarmen Verhältnis. Das vorgegebene kraftstoff-/luftarme Verhältnis ist relativ zu einem stöchiometrischen Kraftstoff-/Luftverhältnis für den Kraftstoff kraftstoffarm. Ein Zylindersteuerungsmodul deaktiviert selektiv das Öffnen der Einlass- und Auslassventile der M-Zylinder des Motors, um die Entfernung von Stickoxid (NOx) aus den Abgasen zu erhöhen. M ist eine Ganzzahl größer als 0 und kleiner als eine Gesamtzahl der Zylinder des Motors. Das Kraftstoffsteuermodul übernimmt des Weiteren Folgendes: deaktiviert die Betankung der M-Zylinder, während das Öffnen der Einlass- und Auslassventile der M-Zylinder deaktiviert ist; und steuert die Kraftstoffeinspritzung der anderen Zylinder, während die Betankung der M-Zylinder deaktiviert ist und das Öffnen der Einlass- und Auslassventile der M-Zylinder deaktiviert ist, basierend auf einem vorgegebenen kraftstoff-/luftreichhaltigen Verhältnis, das relativ zu dem stöchiometrischen Kraftstoff-/Luftverhältnis kraftstoffreichhaltig ist.

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Номер записи: 21
09-02-2023 дата публикации

Systeme zur aufrechterhaltung der katalysatortemperatur

Номер: DE102019112205B4
Автор: Arun S. Solomon, David P. Sczomak, Gerald A. Szekely JR., Kushal Narayanaswamy
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Katalysator-Temperatursteuerungssystem eines Fahrzeugs, umfassend:ein Kraftstoffsteuermodul (323), das konfiguriert ist, um das Kraftstoffeinspritzen eines Motors (102) basierend auf einem Soll-Luft-/Kraftstoffverhältnis zu steuern, das in Bezug auf ein stöchiometrisches Luft-/Kraftstoffverhältnis und einen Soll-Startzeitpunkt für das Kraftstoffeinspritzen ein magerer Kraftstoff ist;ein Zündsteuermodul, das konfiguriert ist, um den Zündzeitpunkt des Motors (102) basierend auf einem Soll-Zündzeitpunkt zu steuern;ein Abgasrückführungs-(AGR)-Steuermodul (260), das konfiguriert ist, um basierend auf einer Soll-AGR-Öffnung (264) die Steuerungsöffnung eines AGR-Ventils (170) zu steuern, das die Abgase aus einem Abgassystem (134) des Motors (102) zurück in ein Ansaugsystem des Motors (102) zirkuliert;ein Drosselklappensteuermodul (216), das konfiguriert ist, um das Öffnen einer Drosselklappe basierend auf einer Soll-Drosselklappenöffnung zu steuern; undein Einstellmodul (280), das konfiguriert ist, wenn eine Temperatur eines Katalysators (136) im Abgassystem (134) des Motors (102) geringer ist als die Summe einer vorgegebenen Aussetzungstemperatur des Katalysators (136) und einer vorgegebenen Temperatur und das Soll-Luft-/Kraftstoffverhältnis relativ zum stöchiometrischen Luft-/Kraftstoffverhältnis kraftstoffmager ist, basierend auf einem Vergleich einer Motordrehzahl und einer vorgegebenen Motordrehzahl, selektiv mindestens eines der Folgenden einzustellen:der Soll-Drosselklappenöffnung;des Sollzündzeitpunkts (228);der Soll-Kraftstoffeinspritzzeitpunkt;des Soll-Luft-/Kraftstoffverhältnisses; undder Soll-AGR-Öffnung (264).

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Номер записи: 22
24-03-2016 дата публикации

System und Verfahren zum Anpassen von Kraftstoffeinspritzungsparametern während Übergangsereignissen zum Verringern von Partikelemissionen

Номер: DE102015114730A1
Автор: David P. Sczomak, Jonathan T. Shibata, Michael J. Lucido, Robert S. Levy
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein System gemäß der vorliegenden Offenbarung umfasst ein Kraftstoffsteuermodul und ein Modul für eine gewünschte Luft pro Zylinder (APC) und/oder ein Modul für einen vorausgesagten Krümmerabsolutdruck (MAP). Das Modul für die gewünschte APC ermittelt einen gewünschten Betrag einer Luftströmung für jeden Zylinder eines Motors. Das Modul für den vorausgesagten MAP sagt einen Druck in einem Einlasskrümmer des Motors zu einem zukünftigen Zeitpunkt voraus. Das Kraftstoffsteuermodul passt einen Kraftstoffeinspritzungsparameter des Motors selektiv an basierend auf: einer Änderung in der gewünschten Luft pro Zylinder von einem ersten Zeitpunkt bis zu einem zweiten Zeitpunkt; und/oder einer Änderung in dem vorausgesagten Krümmerdruck von dem ersten Zeitpunkt bis zu dem zweiten Zeitpunkt.

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Номер записи: 23
19-07-2012 дата публикации

Systeme und Verfahren zur Steuerung eines Kraftstoffleistendrucks

Номер: DE102012000691A1
Автор: Daniel Sabathil, David P. Sczomak, Jonathan T. Shibata, Joshua D. Cowgill
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Ein Kraftstoffsteuersystem umfasst ein Ziel-Leistendruckmodul. Das Ziel-Leistendruckmodul ermittelt einen Ziel-Kraftstoffleistendruck einer Kraftstoffleiste eines Motors mit Direkteinspritzung. Ein Offsetmodul ermittelt einen Offsetwert basierend auf einer Motordrehzahl des Motors mit Direkteinspritzung und basierend auf einer Motorlast und/oder einer Luft pro Zylinder. Ein Modifikatormodul ermittelt einen Modifikatorwert basierend auf einer Temperatur des Motors mit Direkteinspritzung. Ein Leistendruck-Steuermodul passt einen momentanen Kraftstoffleistendruck der Kraftstoffleiste basierend auf dem Ziel-Kraftstoffleistendruck, dem Offsetwert und dem Modifikatorwert an.

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Номер записи: 24
01-05-2018 дата публикации

Dedicated exhaust gas recirculation control systems and methods

Номер: US09957911B2
Автор: David P. Sczomak, Edward J. Keating, Kushal Narayanaswamy
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC, US Department of Energy

An engine control system of a vehicle includes a fuel control module that controls fuel injection of a first cylinder of an engine based on a first target air/fuel ratio that is fuel lean relative to a stoichiometric air/fuel ratio and that controls fuel injection of a second cylinder of the engine based on a second target air/fuel ratio that is fuel rich relative to stoichiometry. The first cylinder outputs exhaust to a first three way catalyst (TWC), and the second cylinder outputs exhaust to an exhaust gas recirculation (EGR) valve. An EGR control module controls opening of the EGR valve to: (i) a second TWC that reacts with nitrogen oxides (NOx) in the exhaust and outputs ammonia to a selective catalytic reduction (SCR) catalyst; and (ii) a conduit that recirculates exhaust back to an intake system of the engine.

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Номер записи: 25