Patents by Inventor Dipankar Deb
Dipankar Deb 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).
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Patent number: 10883435Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: GrantFiled: August 20, 2019Date of Patent: January 5, 2021Assignee: AI ALPINE US BIDCO INCInventors: Dipankar Deb, Sharath Sridhar Aramanekoppa, Prashant Srinivasan, Maruthi Narasinga Rao Devarakonda
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Patent number: 10844813Abstract: 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.Type: GrantFiled: April 8, 2019Date of Patent: November 24, 2020Assignee: Transportation IP Holdings, LLCInventors: 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
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Publication number: 20200049093Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: ApplicationFiled: August 20, 2019Publication date: February 13, 2020Inventors: Dipankar Deb, Sharath Sridhar ARAMANEKOPPA, Prashant SRINIVASAN, Maruthi Narasinga Rao DEVARAKONDA
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Patent number: 10385794Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: GrantFiled: September 22, 2016Date of Patent: August 20, 2019Assignee: AI Alpine US Bidco Inc.Inventors: Dipankar Deb, Sharath Sridhar Aramanekoppa, Prashant Srinivasan, Maruthi Narasinga Rao Devarakonda
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Publication number: 20190234352Abstract: 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.Type: ApplicationFiled: April 8, 2019Publication date: August 1, 2019Inventors: 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
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Patent number: 10329979Abstract: A method for controlling an emission amount in an exhaust gas stream emitted from a power generation system is presented. The method includes determining a pre-catalyst emission level using a combustion engine model. The method further includes determining a post-catalyst emission level using a three-way catalyst model based on the pre-catalyst emission level. Furthermore, the method includes determining an adjusted post-catalyst emission level based on the post-catalyst emission level. Moreover, the method includes determining a difference between the post-catalyst emission level and the adjusted post-catalyst emission level and comparing the difference with a threshold value. Additionally, the method includes determining whether to adjust an actual value of an engine operating parameter based on the comparison such that the emission amount in the exhaust gas stream is maintained below an emission regulatory limit. An engine controller and a power generation system employing the method are also presented.Type: GrantFiled: September 15, 2016Date of Patent: June 25, 2019Assignee: AI ALPINE US BIDCO INCInventors: Prashant Srinivasan, Maruthi NarasingaRao Devarakonda, William Collins Vining, Edward Owen Reinbold, Dipankar Deb
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Patent number: 10253731Abstract: 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.Type: GrantFiled: February 17, 2016Date of Patent: April 9, 2019Assignee: GE Global Sourcing LLCInventors: 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
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Patent number: 10066604Abstract: A method for optimizing a hybrid wind system including a wind farm having a plurality of wind turbines and one or more energy storage units, is presented. The method includes acquiring actual wind power data associated with one or more dispatch windows. The method includes determining forecasted wind farm power estimates corresponding to the dispatch windows using a plurality of forecast schemes. The method includes computing difference values by comparing the forecasted wind farm power estimates to the actual wind power data. The method includes identifying a wind power forecast scheme based at least in part on the computed difference values and balancing a penalty to the grid with life consumption of the energy storage units while regulating the wind turbines and the energy storage units based at least in part on a subsequent forecasted wind farm power estimate generated using the identified wind power forecast scheme.Type: GrantFiled: May 12, 2015Date of Patent: September 4, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Dipankar Deb, Akshay Krishnamurty Ambekar, Deepak Raj Sagi
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Patent number: 9863344Abstract: A system includes an engine comprising an EGR valve that recirculates a portion of exhaust gas, a data repository that stores a first look up and one or more engine operational parameters, an engine control unit operationally coupled to the engine and the data repository, wherein the engine control unit is configured to: determine a desired EGR flow rate reference of the portion of the exhaust gas based on the one or more engine operational parameters and the first look up table, determine a current estimated EGR flow rate based on the one or more engine operational parameters, determine a designated corrected EGR flow rate reference based on the desired EGR flow rate reference and a delta EGR flow rate, determine EGR flow rate error, and determine a percentage opening of the EGR valve based at least on the EGR flow rate error.Type: GrantFiled: June 22, 2015Date of Patent: January 9, 2018Assignee: General Electric CompanyInventors: Dipankar Deb, Prashant Srinivasan, Medy Satria, Maruthi Narasinga Rao Devarakonda, Dhruval Bhatt
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Publication number: 20170089286Abstract: A method for diagnosing a waste gate valve malfunction in a power generation system is presented. The method includes determining an actual pressure differential across a throttle valve. The method further includes determining an estimated pressure differential across the throttle valve based on one or more first operating parameters of the power generation system. Furthermore, the method includes determining an absolute difference between the actual pressure differential and the estimated pressure differential. Moreover, the method also includes comparing the absolute difference with a threshold value and if the absolute difference is greater than the threshold value, determining an operating condition of the throttle valve. Additionally, the method includes determining whether the waste gate valve has malfunctioned based on the determined operating condition of the throttle valve. An engine controller and a power generation system employing the method are also presented.Type: ApplicationFiled: September 22, 2016Publication date: March 30, 2017Inventors: Dipankar DEB, Sharath Sridhar ARAMANEKOPPA, Prashant SRINIVASAN, Maruthi Narasinga Rao DEVARAKONDA
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Patent number: 9605579Abstract: A system includes a controller that has a processor configured to receive a first signal from a first oxygen sensor indicative of a first oxygen measurement, wherein the first oxygen sensor is disposed upstream of a catalytic converter system; and to receive a second signal from a second oxygen sensor indicative of a second oxygen measurement, wherein the second oxygen sensor is disposed downstream of the catalytic converter system; and to execute a catalyst estimator system, wherein the catalyst estimator system is configured to derive an oxygen storage estimate based on the first signal, the second signal, and a catalytic converter model. The processor is configured to derive a system oxygen storage setpoint for the catalytic converter system based on the catalytic converter model and the oxygen storage estimate.Type: GrantFiled: December 12, 2014Date of Patent: March 28, 2017Assignee: General Electric CompanyInventors: Prashant Srinivasan, Maruthi Narasinga Rao Devarakonda, Jassin Marcel Fritz, Daniel George Norton, Sharath Sridhar Aramanekoppa, Medy Satria, William Collins Vining, Dipankar Deb
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Publication number: 20170074138Abstract: A method for controlling an emission amount in an exhaust gas stream emitted from a power generation system is presented. The method includes determining a pre-catalyst emission level using a combustion engine model. The method further includes determining a post-catalyst emission level using a three-way catalyst model based on the pre-catalyst emission level. Furthermore, the method includes determining an adjusted post-catalyst emission level based on the post-catalyst emission level. Moreover, the method includes determining a difference between the post-catalyst emission level and the adjusted post-catalyst emission level and comparing the difference with a threshold value. Additionally, the method includes determining whether to adjust an actual value of an engine operating parameter based on the comparison such that the emission amount in the exhaust gas stream is maintained below an emission regulatory limit. An engine controller and a power generation system employing the method are also presented.Type: ApplicationFiled: September 15, 2016Publication date: March 16, 2017Inventors: Prashant SRINIVASAN, Maruthi NarasingaRao DEVARAKONDA, William Collins VINING, Edward Owen REINBOLD, Dipankar DEB
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Publication number: 20160369723Abstract: A system includes an engine comprising an EGR valve that recirculates a portion of exhaust gas, a data repository that stores a first look up and one or more engine operational parameters, an engine control unit operationally coupled to the engine and the data repository, wherein the engine control unit is configured to: determine a desired EGR flow rate reference of the portion of the exhaust gas based on the one or more engine operational parameters and the first look up table, determine a current estimated EGR flow rate based on the one or more engine operational parameters, determine a designated corrected EGR flow rate reference based on the desired EGR flow rate reference and a delta EGR flow rate, determine EGR flow rate error, and determine a percentage opening of the EGR valve based at least on the EGR flow rate error.Type: ApplicationFiled: June 22, 2015Publication date: December 22, 2016Inventors: Dipankar Deb, Prashant Srinivasan, Medy Satria, Maruthi Narasinga Rao Devarakonda, Dhruval Bhatt
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Publication number: 20160169077Abstract: A system includes a controller that has a processor configured to receive a first signal from a first oxygen sensor indicative of a first oxygen measurement, wherein the first oxygen sensor is disposed upstream of a catalytic converter system; and to receive a second signal from a second oxygen sensor indicative of a second oxygen measurement, wherein the second oxygen sensor is disposed downstream of the catalytic converter system; and to execute a catalyst estimator system, wherein the catalyst estimator system is configured to derive an oxygen storage estimate based on the first signal, the second signal, and a catalytic converter model. The processor is configured to derive a system oxygen storage setpoint for the catalytic converter system based on the catalytic converter model and the oxygen storage estimate.Type: ApplicationFiled: December 12, 2014Publication date: June 16, 2016Inventors: Prashant Srinivasan, Maruthi Narasinga Rao Devarakonda, Jassin Marcel Fritz, Daniel George Norton, Sharath Sridhar Aramanekoppa, Medy Satria, William Collins Vining, Dipankar Deb
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Publication number: 20160160811Abstract: 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.Type: ApplicationFiled: February 17, 2016Publication date: June 9, 2016Applicant: General Electric CompanyInventors: 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
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Publication number: 20150330365Abstract: A method for optimizing a hybrid wind system including a wind farm having a plurality of wind turbines and one or more energy storage units, is presented. The method includes acquiring actual wind power data associated with one or more dispatch windows. The method includes determining forecasted wind farm power estimates corresponding to the dispatch windows using a plurality of forecast schemes. The method includes computing difference values by comparing the forecasted wind farm power estimates to the actual wind power data. The method includes identifying a wind power forecast scheme based at least in part on the computed difference values and balancing a penalty to the grid with life consumption of the energy storage units while regulating the wind turbines and the energy storage units based at least in part on a subsequent forecasted wind farm power estimate generated using the identified wind power forecast scheme.Type: ApplicationFiled: May 12, 2015Publication date: November 19, 2015Inventors: Dipankar Deb, Akshay Krishnamurty Ambekar, Deepak Raj Sagi