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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 26.
02-02-2023 дата публикации

VEHICLE CONTROL SYSTEM AND METHOD

Номер: US20230035533A1
Автор: Derek K. Woo, Brian Lee Staton, Jason Ensign, Adam Franco, Marshall Tetterton, Sanketh Bhat, Sahil Modi, Manthram Sivasubramaniam, Jayeshkumar Jayanarayan Barve
Принадлежит:

A method includes applying a brake system of a multi-vehicle system using an onboard controller device and receiving grade input at the onboard controller device from a remote controller device. The grade input indicates a grade of a surface on which the multi-vehicle system is disposed. The method further includes starting movement responsive to receiving a speed command signal at the onboard controller device from the remote controller device. The movement started by initiating release of the brake system and/or generating tractive effort from a propulsion system of the multi-vehicle system stretches the multi-vehicle system. The method further includes, responsive to the movement reaching a designated speed, switching to a closed loop control process of controlling the movement based on one or more of the speed command signal or a brake command signal received at the onboard controller device from the remote controller device.

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Номер записи: 1
24-01-2012 дата публикации

System and method for operating a compression-ignition engine

Номер: US0008103429B2
Автор: Manthram Sivasubramaniam, Paul Kenneth Houpt, Roy James Primus, Sunil Shirish Shah, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL KENNETH, PRIMUS ROY JAMES, SHAH SUNIL SHIRISH
Принадлежит: General Electric Company, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL KENNETH, PRIMUS ROY JAMES, SHAH SUNIL SHIRISH, GEN ELECTRIC, GENERAL ELECTRIC COMPANY

A system includes a controller configured to estimate a brake specific nitrogen oxide emission of an engine based on a plurality of sensed parameters of the engine. The controller is also configured to control one or more control variables of the engine to reduce specific fuel consumption while ensuring compliance of brake specific nitrogen oxide emissions within predetermined limits.

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Номер записи: 2
13-07-2004 дата публикации

Method and apparatus for controlling a plurality of locomotives

Номер: US0006763291B1
Автор: Paul Kenneth Houpt, Sunil Shirish Shah, Harry Kirk Mathews, Jr., David So Keung Chan, Manthram Sivasubramaniam, Raj Mohan Bharadwaj, Purnaprajna Raghavendra Mangsuli, Venkateswaran Narayanan, HOUPT PAUL KENNETH, SHAH SUNIL SHIRISH, MATHEWS JR HARRY KIRK, CHAN DAVID SO KEUNG, SIVASUBRAMANIAM MANTHRAM, BHARADWAJ RAJ MOHAN, MANGSULI PURNAPRAJNA RAGHAVEND, NARAYANAN VENKATESWARAN, MATHEWS, JR. HARRY KIRK, MANGSULI PURNAPRAJNA RAGHAVENDRA
Принадлежит: General Electric Company, GEN ELECTRIC, GENERAL ELECTRIC COMPANY

An apparatus for controlling a plurality of locomotives, the locomotives being responsive to a plurality of discrete actual commands, the apparatus comprising: a combination generator adapted for generating combinations of the discrete actual commands to yield a command combination set; a performance calculator adapted for calculating a performance parameter set from the command combination set; a feasible combination selector adapted for selecting a feasible combination subset from the command combination set as a function of a discrete performance setpoint, a performance tolerance, and the performance parameter set; an objective function calculator adapted for calculating an objective function set from the feasible combination subset; and an optimal command selector adapted for selecting an optimal command combination from the feasible combination subset corresponding to an optimum value of the objective function set.

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Номер записи: 3
10-07-2012 дата публикации

Apparatus and method for determining available power and weight distribution in a train

Номер: US0008219268B2
Автор: Krishnamoorthy Kalyanam, Ajith Kumar, Paul K. Houpt, Manthram Sivasubramaniam, KALYANAM KRISHNAMOORTHY, KUMAR AJITH, HOUPT PAUL K, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL K.
Принадлежит: General Electric Company, KALYANAM KRISHNAMOORTHY, KUMAR AJITH, HOUPT PAUL K, SIVASUBRAMANIAM MANTHRAM, GEN ELECTRIC, HOUPT PAUL K., GENERAL ELECTRIC COMPANY

A navigation system includes a computer readable storage medium having a sequence of instructions stored thereon, which, when executed by a processor, causes the processor to acquire a plurality of parameters of a train comprising parameters measured after the train has begun a journey. The train includes a plurality of vehicles providing tractive effort and a consist coupled to the plurality of vehicles. The sequence of instructions also causes the processor to calculate the tractive effort of less than all of the plurality of vehicles based on the acquired plurality of parameters.

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Номер записи: 4
27-05-2010 дата публикации

APPARATUS AND METHOD FOR ESTIMATING RESISTANCE PARAMETERS AND WEIGHT OF A TRAIN

Номер: US20100131130A1
Автор: Krishnamoorthy Kalyanam, Paul K. Houpt, Manthram Sivasubramaniam, KALYANAM KRISHNAMOORTHY, HOUPT PAUL K, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL K.
Принадлежит:

A computer readable storage medium has a sequence of instructions stored thereon, which, when executed by a processor, causes the processor to acquire a plurality of actual train speed measurements from at least one sensor during a journey and acquire a train power parameter corresponding to each of the plurality of actual train speed measurements. The sequence of instructions further causes the processor to estimate a plurality of resistance parameters from the plurality of actual train speed measurements and the corresponding train power parameters.

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Номер записи: 5
25-05-2023 дата публикации

METHODS AND SYSTEMS FOR VENTILATORS

Номер: US20230162850A1
Автор: Srinivas Kandasamy, Manthram Sivasubramaniam, Sanketh Bhat, Etika Agarwal, Upasana Ramakrishnan
Принадлежит:

Systems and methods are provided herein for analysis of performance of a mechanical ventilator. In one example, a method includes predicting a reliability of a ventilator during ventilator operation based on a discrepancy between a modeled ventilator parameter and a sensed ventilator parameter tracked over time, and further based on ventilator utilization.

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Номер записи: 6
27-05-2010 дата публикации

APPARATUS AND METHOD FOR DETERMINING AVAILABLE POWER AND WEIGHT DISTRIBUTION IN A TRAIN

Номер: US20100131128A1
Автор: Krishnamoorthy Kalyanam, Ajith Kumar, Paul K. Houpt, Manthram Sivasubramaniam, KALYANAM KRISHNAMOORTHY, KUMAR AJITH, HOUPT PAUL K, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL K.
Принадлежит:

A navigation system includes a computer readable storage medium having a sequence of instructions stored thereon, which, when executed by a processor, causes the processor to acquire a plurality of parameters of a train comprising parameters measured after the train has begun a journey. The train includes a plurality of vehicles providing tractive effort and a consist coupled to the plurality of vehicles. The sequence of instructions also causes the processor to calculate the tractive effort of less than all of the plurality of vehicles based on the acquired plurality of parameters.

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Номер записи: 7
08-04-2021 дата публикации

A POWER SYSTEM AND AN ASSOCIATED METHOD THEREOF

Номер: US20210101488A1
Автор: Govardhan Ganireddy, Rupam Mukherjee, Shahid Ali, Ajith Kuttannair Kumar, Manthram Sivasubramaniam, Adnan Kutubuddin Bohori, GANIREDDY GOVARDHAN, MUKHERJEE RUPAM, ALI SHAHID, KUMAR AJITH KUTTANNAIR, SIVASUBRAMANIAM MANTHRAM, BOHORI ADNAN KUTUBUDDIN, Ganireddy, Govardhan, Mukherjee, Rupam, Ali, Shahid, Kumar, Ajith Kuttannair, Sivasubramaniam, Manthram, Bohori, Adnan Kutubuddin
Принадлежит: Transportation IP Holdings LLC

A power system including at least one electrical machine, plurality of doubly fed induction machines (DFIMs), a plurality of first power converters, and a speed regulation unit is presented. The electrical machine includes a mechanical input end and at least one of a first stator winding terminal and a first rotor winding terminal. Each DFIM includes a second stator winding terminal, a second rotor winding terminal, and a mechanical output end. At least one of the first stator winding terminal and the first rotor winding terminal is coupled to one of first power converters and the second rotor winding terminal of each DFIM is coupled to one of the first power converters. The speed regulation unit is coupled to at least one of the mechanical input end and the mechanical output end.

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Номер записи: 8
02-02-2023 дата публикации

VEHICLE CONTROL SYSTEM AND METHOD

Номер: US20230030781A1
Автор: Derek K. Woo, James D. Brooks, Manthram Sivasubramaniam, Sanketh Bhat, Sahil Modi, Jayeshkumar Jayanarayan Barve
Принадлежит:

A vehicle control system an onboard controller device to interface with a propulsion system and a brake system. A remote controller device wirelessly communicates with the onboard controller device and receives input from an operator, generates control signals based on the input, wirelessly communicates the control signals to the onboard controller device while the vehicle system moves along one or more main line routes. A method includes receiving input from an operator at a remote controller device, generating control signals at the remote controller device based on the input from the operator, wirelessly communicating the control signals to an onboard controller device, controlling one or more of a propulsion system or a brake system of the vehicle system to change movement of the vehicle system while the vehicle system moves along one or more main line routes.

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Номер записи: 9
08-07-2010 дата публикации

SYSTEM AND METHOD FOR OPTIMIZING HYBRID ENGINE OPERATION

Номер: US20100174484A1
Автор: Manthram Sivasubramaniam, Paul K. Houpt, Ajit Wasant Kane, Ajith Kumar, Lembit Salasoo, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL K, KANE AJIT WASANT, KUMAR AJITH, SALASOO LEMBIT, HOUPT PAUL K.
Принадлежит:

A system for optimizing a trip for a hybrid vehicle, comprising a computer programmed to determine a route for the hybrid vehicle to travel, obtain altitude and terrain information of the route, and generate a trip plan based on at least the route and altitude to minimize total energy expended along the route by encouraging regenerative braking during portions of the route, regardless of needs to slow the hybrid vehicle.

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Номер записи: 10
08-07-2010 дата публикации

SYSTEM AND METHOD FOR LIMITING IN-TRAIN FORCES OF A RAILROAD TRAIN

Номер: US20100174427A1
Автор: Manthram Sivasubramaniam, David So Keung Chan, Paul K. Houpt, Krishnamoorthy Kalyanam, SIVASUBRAMANIAM MANTHRAM, CHAN DAVID SO KEUNG, HOUPT PAUL K, KALYANAM KRISHNAMOORTHY, HOUPT PAUL K.
Принадлежит:

A system and method for determining and managing a slack state of a train and for is disclosed. The system acquires railway system parameters for a plurality of railway vehicles and for a track segment traversed by the plurality of railway vehicles, the parameters including a grade of the track segment at each of a plurality of locations therealong and an acceleration of each of the plurality of railway vehicles at each of the plurality of locations. The system calculates a coupler force for each of the plurality of railway vehicles at each of the plurality of locations based on the railway system parameters, determines a slack state for the plurality of railway vehicles based on the calculated coupler forces, and determines a limit on a tractive effort generated by locomotive consists included in the railway vehicles based on the determined slack state.

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Номер записи: 11
14-12-2023 дата публикации

VEHICLE CONTROL SYSTEM AND METHOD

Номер: US20230399037A1
Автор: Derek K. Woo, Sahil Modi, Manthram Sivasubramaniam, Jayeshkumar Jayanarayan Barve, Sanketh Bhat, Prem Kumar Patchaikani, Adam Franco, Brian Lee Staton, Marshall Tetterton
Принадлежит: Transportation IP Holdings LLC

A vehicle control system includes a controller to receive a current commanded speed, determine a current moving speed, and calculate a reference shaped speed to operate a propulsion system and/or a brake system to cause the current moving speed to approach the current commanded speed. The reference speed is based on a reference shaping model that changes the reference speed based on relative values of the current commanded speed, a previous commanded speed, the current moving speed, and a previous reference shaped speed. The controller controls the propulsion system and/or the brake system to cause the vehicle system to move at the calculated reference shaped speed. A method includes receiving a current commanded speed, determining a current moving speed, calculating a reference shaped speed, and controlling the one or more of the propulsion system or the brake system to cause the vehicle system to move at the reference shaped speed.

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Номер записи: 12
09-06-2016 дата публикации

METHOD AND SYSTEMS FOR EXHAUST GAS CONTROL

Номер: US20160160811A1
Автор: Dipankar Deb, Manthram Sivasubramaniam, Prashant Srinivasan, Sharath Sridhar Aramanekoppa, Prem Kumar Patchaikani, Sachin Shivajirao Kulkarni, Sebastian Walter Freund, Jassin Marcel Fritz, Georgios Bikas, James Henry Yager, Shashi Kiran, DEB DIPANKAR, SIVASUBRAMANIAM MANTHRAM, SRINIVASAN PRASHANT, ARAMANEKOPPA SHARATH SRIDHAR, PATCHAIKANI PREM KUMAR, KULKARNI SACHIN SHIVAJIRAO, FREUND SEBASTIAN WALTER, FRITZ JASSIN MARCEL, BIKAS GEORGIOS, YAGER JAMES HENRY, KIRAN SHASHI
Принадлежит: General Electric Company

Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount.

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Номер записи: 13
22-05-2012 дата публикации

Apparatus and method for estimating resistance parameters and weight of a train

Номер: US0008185263B2
Автор: Krishnamoorthy Kalyanam, Paul K. Houpt, Manthram Sivasubramaniam, KALYANAM KRISHNAMOORTHY, HOUPT PAUL K, SIVASUBRAMANIAM MANTHRAM, HOUPT PAUL K.
Принадлежит: General Electric Company, KALYANAM KRISHNAMOORTHY, HOUPT PAUL K, SIVASUBRAMANIAM MANTHRAM, GEN ELECTRIC, HOUPT PAUL K., GENERAL ELECTRIC COMPANY

A computer readable storage medium has a sequence of instructions stored thereon, which, when executed by a processor, causes the processor to acquire a plurality of actual train speed measurements from at least one sensor during a journey and acquire a train power parameter corresponding to each of the plurality of actual train speed measurements. The sequence of instructions further causes the processor to estimate a plurality of resistance parameters from the plurality of actual train speed measurements and the corresponding train power parameters.

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Номер записи: 14
19-06-2008 дата публикации

System and method for operating a compression-ignition engine

Номер: US20080147295A1
Автор: Manthram Sivasubramaniam, Paul Kenneth Houpt, Roy James Primus, Sunil Shirish Shah
Принадлежит: General Electric Company

A system includes a controller configured to estimate a brake specific nitrogen oxide emission of an engine based on a plurality of sensed parameters of the engine. The controller is also configured to control one or more control variables of the engine to reduce specific fuel consumption while ensuring compliance of brake specific nitrogen oxide emissions within predetermined limits.

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Номер записи: 15
24-11-2020 дата публикации

Method and systems for exhaust gas control

Номер: US0010844813B2
Автор: Dipankar Deb, Manthram Sivasubramaniam, Prashant Srinivasan, Sharath Sridhar Aramanekoppa, Prem Kumar Patchaikani, Sachin Shivajirao Kulkarni, Sebastian Walter Freund, Jassin Marcel Fritz, Georgios Bikas, James Henry Yager, Shashi Kiran, DEB DIPANKAR, SIVASUBRAMANIAM MANTHRAM, SRINIVASAN PRASHANT, ARAMANEKOPPA SHARATH SRIDHAR, PATCHAIKANI PREM KUMAR, KULKARNI SACHIN SHIVAJIRAO, FREUND SEBASTIAN WALTER, FRITZ JASSIN MARCEL, BIKAS GEORGIOS, YAGER JAMES HENRY, KIRAN SHASHI, Deb, Dipankar, Sivasubramaniam, Manthram, Srinivasan, Prashant, Aramanekoppa, Sharath Sridhar, Patchaikani, Prem Kumar, Kulkarni, Sachin Shivajirao, Freund, Sebastian Walter, Fritz, Jassin Marcel, Bikas, Georgios, Yager, James Henry, Kiran, Shashi
Принадлежит: Transportation IP Holdings, LLC, TRANSP IP HOLDINGS LLP, TRANSP IP HOLDINGS LLC, Transportation IP Holdings, LLP

Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount.

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Номер записи: 16
03-07-2018 дата публикации

System and method for engine control

Номер: US0010012153B2
Автор: Manthram Sivasubramaniam, Manoj Gokhale, Venkateswarlu Andra, Ankur Sinha, Sanketh Bhat, Luke Henry, James Robert Mischler, Greg Thomas Polkus, SIVASUBRAMANIAM MANTHRAM, GOKHALE MANOJ, ANDRA VENKATESWARLU, SINHA ANKUR, BHAT SANKETH, HENRY LUKE, MISCHLER JAMES ROBERT, POLKUS GREG THOMAS, Sivasubramaniam, Manthram, Gokhale, Manoj, Andra, Venkateswarlu, Sinha, Ankur, Bhat, Sanketh, Henry, Luke, Mischler, James Robert, Polkus, Greg Thomas
Принадлежит: General Electric Company, GEN ELECTRIC

A method for controlling an engine includes the steps of, in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking, and adjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts.

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Номер записи: 17
26-09-2023 дата публикации

System and method for responding to a friction coefficient signal of a wind turbine

Номер: US0011767821B2
Автор: Vidya Sagar Meesala, Misha Gupta, Pranav Agarwal, Manthram Sivasubramaniam, Justin Edwin Barton, Frederick Wilson Wheeler
Принадлежит: General Electric Renovables Espana, S.L.

The present disclosure is directed to a method for responding to a friction coefficient signal of a pitch bearing of a pitch drive mechanism of a wind turbine and/or for controlling the pitch drive mechanism(s) and/or a bank of ultracapacitors. The method and system include: accessing high-frequency measurement data of the at least one pitch bearing; estimating, via a torque balance model implemented by a controller, a frictional torque of the at least one pitch bearing based, at least in part, on the high-frequency measurement data; estimating, via the controller, a friction coefficient signal of the at least one pitch bearing based, at least in part, on the frictional torque; comparing the friction coefficient signal with a friction threshold; determining whether the friction coefficient signal deviates from the friction threshold based, at least in part, on the comparison; and, if so, acting.

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Номер записи: 18
09-04-2019 дата публикации

Method and systems for exhaust gas control

Номер: US0010253731B2
Автор: Dipankar Deb, Manthram Sivasubramaniam, Prashant Srinivasan, Sharath Sridhar Aramanekoppa, Prem Kumar Patchaikani, Sachin Shivajirao Kulkarni, Sebastian Walter Freund, Jassin Marcel Fritz, Georgios Bikas, James Henry Yager, Shashi Kiran, DEB DIPANKAR, SIVASUBRAMANIAM MANTHRAM, SRINIVASAN PRASHANT, ARAMANEKOPPA SHARATH SRIDHAR, PATCHAIKANI PREM KUMAR, KULKARNI SACHIN SHIVAJIRAO, FREUND SEBASTIAN WALTER, FRITZ JASSIN MARCEL, BIKAS GEORGIOS, YAGER JAMES HENRY, KIRAN SHASHI, Deb, Dipankar, Sivasubramaniam, Manthram, Srinivasan, Prashant, Aramanekoppa, Sharath Sridhar, Patchaikani, Prem Kumar, Kulkarni, Sachin Shivajirao, Freund, Sebastian Walter, Fritz, Jassin Marcel, Bikas, Georgios, Yager, James Henry, Kiran, Shashi
Принадлежит: GE Global Sourcing LLC, GEN ELECTRIC, GE GLOBAL SOURCING LLC, General Electric Company

Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount.

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Номер записи: 19
19-07-2022 дата публикации

Power system and an associated method thereof

Номер: US0011390173B2
Автор: Govardhan Ganireddy, Rupam Mukherjee, Shahid Ali, Ajith Kuttannair Kumar, Manthram Sivasubramaniam, Adnan Kutubuddin Bohori
Принадлежит: TRANSPORTATION IP HOLDINGS, LLC, GE Global Sourcing LLC

A power system including at least one electrical machine, plurality of doubly fed induction machines (DFIMs), a plurality of first power converters, and a speed regulation unit is presented. The electrical machine includes a mechanical input end and at least one of a first stator winding terminal and a first rotor winding terminal. Each DFIM includes a second stator winding terminal, a second rotor winding terminal, and a mechanical output end. At least one of the first stator winding terminal and the first rotor winding terminal is coupled to one of first power converters and the second rotor winding terminal of each DFIM is coupled to one of the first power converters. The speed regulation unit is coupled to at least one of the mechanical input end and the mechanical output end.

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Номер записи: 20
01-08-2019 дата публикации

METHOD AND SYSTEMS FOR EXHAUST GAS CONTROL

Номер: US20190234352A1
Автор: Dipankar Deb, Manthram Sivasubramaniam, Prashant Srinivasan, Sharath Sridhar Aramanekoppa, Prem Kumar Patchaikani, Sachin Shivajirao Kulkarni, Sebastian Walter Freund, Jassin Marcel Fritz, Georgios Bikas, James Henry Yager, Shashi Kiran, DEB DIPANKAR, SIVASUBRAMANIAM MANTHRAM, SRINIVASAN PRASHANT, ARAMANEKOPPA SHARATH SRIDHAR, PATCHAIKANI PREM KUMAR, KULKARNI SACHIN SHIVAJIRAO, FREUND SEBASTIAN WALTER, FRITZ JASSIN MARCEL, BIKAS GEORGIOS, YAGER JAMES HENRY, KIRAN SHASHI, Deb, Dipankar, Sivasubramaniam, Manthram, Srinivasan, Prashant, Aramanekoppa, Sharath Sridhar, Patchaikani, Prem Kumar, Kulkarni, Sachin Shivajirao, Freund, Sebastian Walter, Fritz, Jassin Marcel, Bikas, Georgios, Yager, James Henry, Kiran, Shashi
Принадлежит:

Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount. 15.-. (canceled)6. A method for an engine system , comprising:during a first condition, adjusting a position of a first exhaust valve based on a target amount, and adjusting a position of a second exhaust valve based on a position of the first exhaust valve; andresponsive to a second condition, adjusting the position of the second exhaust valve based on the target amount and based on exhaust manifold pressure.7. The method of claim 6 , wherein during the first condition claim 6 , the position of the second exhaust valve is further adjusted based on the target amount claim 6 , and wherein the adjusting of the position of the first exhaust valve and the adjusting of the position of second exhaust valve during the first condition are independent of the exhaust manifold pressure.8. The method of claim 6 , wherein the adjusting of the position of the second exhaust valve during the second condition is independent of a position of the first exhaust valve.9. The method of claim 6 , wherein the first condition comprises steady state engine operation claim 6 , and wherein the second condition comprises an indication of ...

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Номер записи: 21
02-04-2015 дата публикации

SYSTEM AND METHOD FOR ENGINE CONTROL

Номер: US20150089940A1
Автор: ANDRA VENKATESWARLU, Bhat Sanketh, Gokhale Manoj, Henry Luke, Mischler James Robert, Polkus Greg Thomas, SINHA ANKUR, SIVASUBRAMANIAM MANTHRAM
Принадлежит: GENERAL ELECTRIC COMPANY

A method for controlling an engine includes the steps of, in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking, and adjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts. 1. A method for controlling an engine , comprising the steps of:in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking; andadjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts.2. The method according to claim 1 , wherein the EGR provided to the intake of the engine is adjusted based on a lowest of the determined first claim 1 , second claim 1 , and third amounts.3. The method according to claim 1 , wherein the EGR provided to the intake of the engine is adjusted to be lower than a lowest of the determined first amount of EGR and the determined third amount of EGR and to be higher than the determined second amount of EGR.4. The method according to claim 3 , wherein:the second amount of EGR is determined based on at least one of designated intake oxygen concentration, one or more turbocharger conditions of the turbocharger, or a magnitude of the transient operating event.5. The method according to claim 4 , wherein:the ...

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Номер записи: 22
10-05-2011 дата публикации

Method and apparatus for controlling a plurality of locomotives

Номер: CA2482076C
Автор: David So Keung Chan, Harry Kirk Mathews, Jr., Manthram Sivasubramaniam, Paul Kenneth Houpt, Purnaprajna Raghavendra MANGSULI, Raj Mohan Bharadwaj, Sunil Shirish Shah, Venkateswaran Narayanan
Принадлежит: General Electric Co

An apparatus (100) for controlling a plurality of locomotives, the locomotives being responsive to a plurality of discrete actual commands, the apparatus (100) comprising: a combination generator (110) adapted for generating combinations of the discrete actual commands to yield a command combination set (120); a performance calculator (130) adapted for calculating a performance parameter set (140) from the command combination set (120); a feasible combination selector (150) adapted for selecting a feasible combination subset (160) from the command combination set (120) as a function of a discrete performance setpoint (152), a performance tolerance (154), and the performance parameter set (140); an objective function calculator (170) adapted for calculating an objective function set (180) from the feasible combination subset (160); and an optimal command selector (190) adapted for selecting an optimal command combination (200) from the feasible combination subset (160) corresponding to an optimum value of the objective function set (180).

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Номер записи: 23
21-06-2018 дата публикации

Method and system for determining a maximum efficiency operating speed of an engine

Номер: WO2018111875A1
Автор: Manthram Sivasubramaniam, Sharath Sridhar Aramanekoppa, Somakumar Ramachandrapanicker
Принадлежит: GENERAL ELECTRIC COMPANY

A control sub-system (108, 208) for determining a maximum efficiency operating speed of an engine (104, 204) is presented. The control sub-system (108, 208) includes a measurement unit (110, 210) configured to generate electrical signals indicative of an engine power and a controller (112, 212) coupled to an engine control unit (ECU) (106, 206). The controller (112, 212) is configured to determine a maximum efficiency operating speed of the engine (104, 204) corresponding to an engine power based on a value of a fuel command received from the engine control unit (106, 206). The controller (112, 212) is also configured to communicate control commands to the engine control unit (106, 206) to operate the engine (104, 204) at the maximum efficiency operating speed corresponding to the engine power.

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Номер записи: 24
31-05-2023 дата публикации

System and method for responding to a friction coefficient signal of a wind turbine

Номер: EP4187086A1
Автор: Frederick Wilson Wheeler, Justin Edwin Barton, Manthram Sivasubramaniam, Misha Gupta, Pranav Agarwal, Vidya Sagar Meesala
Принадлежит: General Electric Renovables Espana SL

The present disclosure is directed to a method for responding to a friction coefficient signal of a pitch bearing of a pitch drive mechanism of a wind turbine and/or for controlling the pitch drive mechanism(s) and/or a bank of ultracapacitors. The method and system include: accessing high-frequency measurement data of the at least one pitch bearing; estimating, via a torque balance model implemented by a controller, a frictional torque of the at least one pitch bearing based, at least in part, on the high-frequency measurement data; estimating, via the controller, a friction coefficient signal of the at least one pitch bearing based, at least in part, on the frictional torque; comparing the friction coefficient signal with a friction threshold; determining whether the friction coefficient signal deviates from the friction threshold based, at least in part, on the comparison; and, if so, acting.

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Номер записи: 25
08-12-2023 дата публикации

Vehicle control system and method

Номер: CA3162039A1
Автор: Adam Franco, Brian Lee Staton, Derek K. Woo, Jayeshkumar Jayanarayan Barve, Manthram Sivasubramaniam, Marshall Tetterton, Prem Kumar Patchaikani, Sahil Modi, Sanketh Bhat
Принадлежит: Transportation IP Holdings LLC

A vehicle control system includes a controller to receive a current commanded speed, determine a current moving speed, and calculate a reference shaped speed to operate a propulsion system and/or a brake system to cause the current moving speed to approach the current commanded speed. The reference speed is based on a reference shaping model that changes the reference speed based on relative values of the current commanded speed, a previous commanded speed, the current moving speed, and a previous reference shaped speed. The controller controls the propulsion system and/or the brake system to cause the vehicle system to move at the calculated reference shaped speed. A method includes receiving a current commanded speed, determining a current moving speed,calculating a reference shaped speed, and controlling the one or more of the propulsion system or the brake system to cause the vehicle system to move at the reference shaped speed.

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Номер записи: 26