Patents by Inventor Sunil Katragadda
Sunil Katragadda 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: 11951799Abstract: A thermal management system for an electrified vehicle and a method for managing such a system, includes a coolant subsystem to cool a battery pack and a refrigerant subsystem. The coolant subsystem includes a battery chiller in fluid communication with a cooling system inlet to the battery pack. The refrigerant subsystem includes a chiller cooling subsystem to cool the battery chiller and a cabin cooling subsystem to cool a passenger cabin, wherein the chiller cooling subsystem and the cabin cooling subsystem are completely separate from each other.Type: GrantFiled: June 15, 2022Date of Patent: April 9, 2024Assignee: Ford Global Technologies, LLCInventors: Kevin Mackenzie, Sunil Katragadda, Ronald Richard Semel
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Patent number: 11731482Abstract: This disclosure details integrated thermal management systems for thermally managing electrified vehicle components. Exemplary integrated thermal management systems may include a thermal module assembly that may be integrated into a front end structure of a flexible modular platform of the electrified vehicle. The integrated thermal management systems may be controlled in a plurality of distinct thermal control modes for thermal managing various subcomponents and for addressing various vehicle auxiliary loads (e.g., passenger cabin heating loads, passenger cabin cooling loads, etc.).Type: GrantFiled: December 30, 2022Date of Patent: August 22, 2023Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Daniel C. Huang, Sunil Katragadda, Ravi Gopal, Clay Wesley Maranville, Christopher Mark Greiner
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Publication number: 20230158854Abstract: This disclosure details integrated thermal management systems for thermally managing electrified vehicle components. Exemplary integrated thermal management systems may include a thermal module assembly that may be integrated into a front end structure of a flexible modular platform of the electrified vehicle. The integrated thermal management systems may be controlled in a plurality of distinct thermal control modes for thermal managing various subcomponents and for addressing various vehicle auxiliary loads (e.g., passenger cabin heating loads, passenger cabin cooling loads, etc.).Type: ApplicationFiled: December 30, 2022Publication date: May 25, 2023Inventors: Daniel HUANG, Sunil KATRAGADDA, Ravi GOPAL, Clay Wesley MARANVILLE, Christopher Mark GREINER
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Patent number: 11578795Abstract: Methods and systems are provided for regulating the temperature of rear axle lubrication oil. In one example, a rear axle coolant system may include a coolant loop with a plurality of valves and sensors, regulating the coolant flow in heat exchange relationship with an exhaust gas heat recovery and storage system to deliver warm coolant to a rear axle heat exchanger to warm the rear axle lubrication oil. The method may regulate the components of the rear axle coolant system through a controller, receiving sensor input from the components of the coolant system.Type: GrantFiled: July 11, 2019Date of Patent: February 14, 2023Assignee: Ford Global Technologies, LLCInventors: Cary Cole, Sunil Katragadda, Phillip Bonkoski, David Karl Bidner, Michael Levin, Colby Jason Buckman, Danrich Henry Demitroff, Amey Y. Karnik, Furqan Shaikh
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Patent number: 11541715Abstract: This disclosure details integrated thermal management systems for thermally managing electrified vehicle components. Exemplary integrated thermal management systems may include a thermal module assembly that may be integrated into a front end structure of a flexible modular platform of the electrified vehicle. The integrated thermal management systems may be controlled in a plurality of distinct thermal control modes for thermal managing various subcomponents and for addressing various vehicle auxiliary loads (e.g., passenger cabin heating loads, passenger cabin cooling loads, etc.).Type: GrantFiled: September 30, 2020Date of Patent: January 3, 2023Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Daniel C. Huang, Sunil Katragadda, Ravi Gopal, Clay Wesley Maranville, Christopher Mark Greiner
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Patent number: 11518212Abstract: Methods and system for operating a thermal storage device of a vehicle system are provided. In one example, a method comprises estimating a temperature of a thermal battery after the battery and coolant included therein have reached thermal equilibrium, and determining a state of charge of the battery based on the estimated temperature and one or more chemical properties of two phase change materials included within the battery. Specifically, the thermal battery may include two phase change materials with different melting points for providing thermal energy to warm coolant in a vehicle coolant system.Type: GrantFiled: May 7, 2019Date of Patent: December 6, 2022Assignee: Ford Global Technologies, LLCInventors: David Karl Bidner, W. Cary Cole, Phillip Bonkoski, Sunil Katragadda, Michael Levin
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Publication number: 20220305877Abstract: A thermal management system for an electrified vehicle and a method for managing such a system, according to an exemplary aspect of the present disclosure includes, among other things, a first cooling circuit, a second cooling circuit, and a third cooling circuit. The first cooling circuit cools a battery pack and includes a battery chiller in fluid communication with a cooling system inlet to the battery pack. The second cooling circuit cools the battery chiller and includes at least a first compressor and a first condenser in fluid communication with the battery chiller. The third cooling circuit cools a passenger cabin and includes at least a second compressor and a second condenser, and wherein the third cooling circuit is independent of the second cooling circuit.Type: ApplicationFiled: June 15, 2022Publication date: September 29, 2022Inventors: Kevin Mackenzie, Sunil Katragadda, Ronald Richard Semel
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Patent number: 11456497Abstract: This disclosure details thermal management systems for thermally managing battery packs and other electric drive components of electrified vehicles. An exemplary thermal management system may include a battery cooling circuit and an e-drive cooling circuit. The e-drive cooling circuit may be fluidly connected to the battery cooling circuit by a combination of valves and coolant lines during or in anticipation of certain vehicle conditions, such as high load operating conditions, to augment cooling of electric drive components during the high load operating conditions.Type: GrantFiled: December 16, 2019Date of Patent: September 27, 2022Assignee: FORD GLOBAL TECHNOLOGIES, LLCInventors: Kevin Mackenzie, Sunil Katragadda, Ronald Richard Semel
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Patent number: 11390137Abstract: A thermal management system for an electrified vehicle and a method for managing such a system, according to an exemplary aspect of the present disclosure includes, among other things, a first cooling circuit, a second cooling circuit, and a third cooling circuit. The first cooling circuit cools a battery pack and includes a battery chiller in fluid communication with a cooling system inlet to the battery pack. The second cooling circuit cools the battery chiller and includes at least a first compressor and a first condenser in fluid communication with the battery chiller. The third cooling circuit cools a passenger cabin and includes at least a second compressor and a second condenser, and wherein the third cooling circuit is independent of the second cooling circuit.Type: GrantFiled: January 15, 2020Date of Patent: July 19, 2022Assignee: Ford Global Technologies, LLCInventors: Kevin Mackenzie, Sunil Katragadda, Ronald Richard Semel
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Publication number: 20220097475Abstract: This disclosure details integrated thermal management systems for thermally managing electrified vehicle components. Exemplary integrated thermal management systems may include a thermal module assembly that may be integrated into a front end structure of a flexible modular platform of the electrified vehicle. The integrated thermal management systems may be controlled in a plurality of distinct thermal control modes for thermal managing various subcomponents and for addressing various vehicle auxiliary loads (e.g., passenger cabin heating loads, passenger cabin cooling loads, etc.).Type: ApplicationFiled: September 30, 2020Publication date: March 31, 2022Inventors: Daniel C. HUANG, Sunil KATRAGADDA, Ravi GOPAL, Clay Wesley MARANVILLE, Christopher Mark GREINER
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Publication number: 20210213798Abstract: A thermal management system for an electrified vehicle and a method for managing such a system, according to an exemplary aspect of the present disclosure includes, among other things, a first cooling circuit, a second cooling circuit, and a third cooling circuit. The first cooling circuit cools a battery pack and includes a battery chiller in fluid communication with a cooling system inlet to the battery pack. The second cooling circuit cools the battery chiller and includes at least a first compressor and a first condenser in fluid communication with the battery chiller. The third cooling circuit cools a passenger cabin and includes at least a second compressor and a second condenser, and wherein the third cooling circuit is independent of the second cooling circuit.Type: ApplicationFiled: January 15, 2020Publication date: July 15, 2021Inventors: Kevin Mackenzie, Sunil Katragadda, Ronald Richard Semel
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Publication number: 20210184294Abstract: This disclosure details thermal management systems for thermally managing battery packs and other electric drive components of electrified vehicles. An exemplary thermal management system may include a battery cooling circuit and an e-drive cooling circuit. The e-drive cooling circuit may be fluidly connected to the battery cooling circuit by a combination of valves and coolant lines during or in anticipation of certain vehicle conditions, such as high load operating conditions, to augment cooling of electric drive components during the high load operating conditions.Type: ApplicationFiled: December 16, 2019Publication date: June 17, 2021Inventors: Kevin MACKENZIE, Sunil KATRAGADDA, Ronald Richard SEMEL
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Patent number: 10987994Abstract: An air-conditioning system and method of climate control for a fuel cell vehicle are provided herein. The system and method include a vacuum enclosure having an adsorber and an evaporator/condenser assembly. A conduit and valve system operates the air-conditioning system in two modes of operation to provide uninterrupted cooling to a passenger cabin, among other things. In one mode of operation, the adsorber is regenerated using waste heat from a fuel cell stack.Type: GrantFiled: February 27, 2018Date of Patent: April 27, 2021Assignee: Ford Global Technologies, LLCInventors: Furqan Zafar Shaikh, Sunil Katragadda, Michael Levin, William Frederick Sanderson, Craig Winfield Peterson
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Patent number: 10471803Abstract: Methods and system for operating a thermal storage device of a vehicle system are provided. In one example, a method comprises estimating a temperature of a thermal battery after the battery and coolant included therein have reached thermal equilibrium, and determining a state of charge of the battery based on the estimated temperature and one or more chemical properties of two phase change materials included within the battery. Specifically, the thermal battery may include two phase change materials with different melting points for providing thermal energy to warm coolant in a vehicle coolant system.Type: GrantFiled: January 27, 2016Date of Patent: November 12, 2019Assignee: Ford Global Technologies, LLCInventors: David Karl Bidner, W. Cary Cole, Phillip Bonkoski, Sunil Katragadda, Michael Levin
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Publication number: 20190331209Abstract: Methods and systems are provided for regulating the temperature of rear axle lubrication oil. In one example, a rear axle coolant system may include a coolant loop with a plurality of valves and sensors, regulating the coolant flow in heat exchange relationship with an exhaust gas heat recovery and storage system to deliver warm coolant to a rear axle heat exchanger to warm the rear axle lubrication oil. The method may regulate the components of the rear axle coolant system through a controller, receiving sensor input from the components of the coolant system.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Inventors: Cary Cole, Sunil Katragadda, Phillip Bonkoski, David Karl Bidner, Michael Levin, Colby Jason Buckman, Danrich Henry Demitroff, Amey Y. Karnik, Furqan Shaikh
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Patent number: 10408333Abstract: Methods and systems are provided for regulating the temperature of rear axle lubrication oil. In one example, a rear axle coolant system may include a coolant loop with a plurality of valves and sensors, regulating the coolant flow in heat exchange relationship with an exhaust gas heat recovery and storage system to deliver warm coolant to a rear axle heat exchanger to warm the rear axle lubrication oil. The method may regulate the components of the rear axle coolant system through a controller, receiving sensor input from the components of the coolant system.Type: GrantFiled: December 9, 2015Date of Patent: September 10, 2019Assignee: Ford Global Technologies, LLCInventors: Cary Cole, Sunil Katragadda, Phillip Bonkoski, David Karl Bidner, Michael Levin, Colby Jason Buckman, Danrich Henry Demitroff, Amey Y. Karnik, Furqan Shaikh
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Publication number: 20190263220Abstract: Methods and system for operating a thermal storage device of a vehicle system are provided. In one example, a method comprises estimating a temperature of a thermal battery after the battery and coolant included therein have reached thermal equilibrium, and determining a state of charge of the battery based on the estimated temperature and one or more chemical properties of two phase change materials included within the battery. Specifically, the thermal battery may include two phase change materials with different melting points for providing thermal energy to warm coolant in a vehicle coolant system.Type: ApplicationFiled: May 7, 2019Publication date: August 29, 2019Inventors: David Karl Bidner, W. Cary Cole, Phillip Bonkoski, Sunil Katragadda, Michael Levin
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Patent number: 10388971Abstract: Fuel-cell thermal management systems and control schemes therefore are disclosed. In one embodiment, the system may include a fuel-cell stack, a heat-exchanger, a thermal battery including a material having a melting temperature of 50-120° C., a first coolant loop including the fuel-cell stack and the thermal battery and excluding the heat-exchanger, and a second coolant loop including the fuel-cell stack, the thermal battery, and the heat-exchanger. The first and second coolant loops may be configured to heat and cool the fuel-cell stack, respectively. The system may include a controller or processor configured to direct coolant to transfer heat from the thermal battery to the fuel-cell stack based on a negative heat rejection status of the fuel-cell stack and to transfer heat from the fuel-cell stack to the thermal battery based on a positive heat rejection status of the fuel-cell stack when the thermal battery is below a target temperature.Type: GrantFiled: March 9, 2016Date of Patent: August 20, 2019Assignee: Ford Global Technologies, LLCInventors: Furqan Zafar Shaikh, Sunil Katragadda, W. Cary Cole, Colby Jason Buckman, Phillip Bonkoski
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Publication number: 20190111758Abstract: An air-conditioning system and method of climate control for a fuel cell vehicle are provided herein. The system and method include a vacuum enclosure having an adsorber and an evaporator/condenser assembly. A conduit and valve system operates the air-conditioning system in two modes of operation to provide uninterrupted cooling to a passenger cabin, among other things. In one mode of operation, the adsorber is regenerated using waste heat from a fuel cell stack.Type: ApplicationFiled: February 27, 2018Publication date: April 18, 2019Inventors: Furqan Zafar Shaikh, Sunil Katragadda, Michael Levin, William Frederick Sanderson, Craig Winfield Peterson
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Patent number: 10161290Abstract: An engine cooling system is provided with an internal combustion engine defining a head cooling jacket and a block cooling jacket in a split flow configuration. A first thermostat is positioned at an outlet of the block cooling jacket and configured to control coolant flow therethrough. A second thermostat is positioned to receive coolant flow from the first thermostat and the head cooling jacket. The first and second thermostats are in a thermostat assembly within a housing. In response to coolant temperature being below a first threshold, a first and a second thermostat downstream of the engine in a thermostat assembly are closed such that coolant flows through a head jacket and the thermostat assembly to a pump, and such that coolant in the head jacket entrains a trickle flow of coolant from a block jacket through an interbore cooling passage, thereby cooling an interbore region.Type: GrantFiled: October 27, 2015Date of Patent: December 25, 2018Assignee: Ford Global Technologies, LLCInventors: Clifford E. Maki, Sunil Katragadda, Ravi Gopal, Peter Kanefsky, Jeffrey A. Mullins, Lloyd E. Stanley, Jr.