Patents by Inventor Ajith Kuttannair Kumar

Ajith Kuttannair Kumar 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).

  • POWER GENERATION SYSTEM AND ASSOCIATED METHOD
    Publication number: 20190366953
    Abstract: A method is presented. The method includes detecting a determined operating condition of a first power converter that is one of a plurality of first power converters in a power generating unit, and the power generating unit is one of a plurality of power generating units. The method further includes responding to detection of the determined operating condition by: controlling, via at least one remaining first power converter of the plurality of first power converters, a load current flowing through a power bus coupled to the plurality of power generating units, and altering one or more droop characteristics corresponding to one or more second power converters disposed in other power generating units based at least in part on the controlled load current flowing through the power bus, wherein the one or more second power converters disposed in other power generating units are coupled to the power bus.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 5, 2019
    Inventors: Govardhan Ganireddy, Ajith Kuttannair Kumar, Shahid Ali, Prashanth Manikumar Chennamsetty
  • Wireless system and method for measuring an operative condition of a machine
    Patent number: 10488385
    Abstract: A system includes a sensor configured to be disposed within a reservoir of a machine having moving parts that are lubricated by a liquid in the reservoir. The sensor is configured to obtain a measurement of the liquid that is representative of at least one of a quantity or quality of the liquid in the reservoir. The system also includes a device body operably coupled to the sensor. The device body has a processing unit that is operably coupled to the sensor and configured to generate first data signals representative of the measurement of the liquid. The device body also includes a transmitter that is configured to wirelessly communicate the first data signals to a remote reader.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 26, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Bret Dwayne Worden, Mahalakshmi Shunmugham Balasubramaniam, Ajith Kuttannair Kumar, Jingjun Zhang, Jennifer Lynn Coyne, Sachidananda Chinagudi Jagadeesha
  • SYSTEMS AND METHODS FOR A VEHICLE INVERTER CONNECTION BUS
    Publication number: 20190356116
    Abstract: A bus assembly is provided having a bus bar with first and second conductive layers extending along an insulator sheet interposed between the first and second conductive layers. The first and second conductive layers are partially aligned with respect to each other to form a first overlap region of the insulator sheet. The bus assembly includes a first set of arms having a set of diodes and a second set of arms having a set of switches. The bust bar includes a plurality of bus links coupling the plurality of arms to the bus bar forming a plurality of inverters. Each of bus links include a respective first bracket and a respective second bracket aligned with each other forming a second overlap region of the insulator sheet. The first bracket is electrically coupled to the first conductive layer and the second bracket is electrically coupled to the second conductive layer.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Sarit Ratadiya, Ajith Kuttannair Kumar, Tharunendra Sekhar, Mark Allen Murphy, Jacob Alan Hubbell, Kevin Ruybal, Emil Nikolov, Maxim Tsupko, Jeffrey Louis Daigle
  • ROUTE EXAMINING SYSTEM
    Publication number: 20190344814
    Abstract: Systems for examining a route inject one or more electrical examination signals into a conductive route from onboard a vehicle system traveling along the route, detect one or more electrical characteristics of the route based on the one or more electrical examination signals, and detect a break in conductivity of the route responsive to the one or more electrical characteristics decreasing by more than a designated drop threshold for a time period within a designated drop time period. Feature vectors may be determined for the electrical characteristics and compared to one or more patterns in order to distinguish between breaks in the conductivity of the route and other causes for changes in the electrical characteristics.
    Type: Application
    Filed: July 10, 2019
    Publication date: November 14, 2019
    Inventors: Yuri Alexeyevich Plotnikov, Brett Alexander Matthews, Ajith Kuttannair Kumar, Jeffrey Michael Fries, Joseph Forrest Noffsinger, Samhitha Palanganda Poonacha, Tannous Frangieh, Frederick Wilson Wheeler, Brian Lee Staton, Timothy Robert Brown, Gregory Boverman, Majid Nayeri
  • Inverter drive system, bus bar and assembly
    Patent number: 10454349
    Abstract: An inverter drive assembly includes a first array of inverters, a second array of inverters spaced from the first array of inverters and defining a plenum therebetween, and a crossover bus bar spanning the plenum and electrically connecting the first array of inverters to the second array of inverters. The crossover bus bar includes a first laminated bus section electrically connected to the first array of inverters, a second laminated bus section electrically connected to the second array of inverters, and a solid bus connection interconnecting the first laminated bus section with the second laminated bus section.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 22, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Sarit Ratadiya, Jacob Alan Hubbell, Ajith Kuttannair Kumar, Mark Murphy, Shreenath Shekar Perlaguri
  • BEARING ASSEMBLY AND METHOD
    Publication number: 20190301526
    Abstract: A bearing assembly is disclosed. The bearing assembly includes a first race. Further, the bearing assembly includes a second race disposed concentric to the first race, where the second race has a radius that changes along an axial length of the bearing assembly. The bearing assembly also includes a housing disposed around the second race and operatively coupled to the second race. Moreover, the bearing assembly includes a plurality of support structures configured to detachably couple the second race to the housing, where the plurality of support structures are configured to disengage the second race from the housing to allow motion of the second race when a torque on the second race is greater than a threshold torque value.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Mandyam Rangayan Sridhar, Ravindra Shankar Ganiger, Dinesh R. Rakwal, Ajith Kuttannair Kumar, Bret Dwayne Worden
  • METHOD AND SYSTEM FOR AN ENGINE
    Publication number: 20190296680
    Abstract: A system includes a generator coupled to an engine and configured to generate electricity from rotational movement of a shaft of the engine, a motor configured to be driven by the generator through one or more power conversion components, the motor configured to drive a load, a sensor configured to measure generator output, and a controller configured to detect engine imbalance based on a frequency content of a signal output from the sensor in response to a contribution to the frequency content from the one or more power conversion components and/or the load of the motor being less than a threshold value.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: Subhas Chandra Das, Ajith Kuttannair Kumar, Shankar Chandrasekaran, Rupam Mukherjee
  • POWER SYSTEM AND METHOD
    Publication number: 20190288595
    Abstract: A power system is presented. The power system includes a first converter including a first output terminal a first control unit coupled to the first converter, a second converter including a second output terminal, where the second converter is coupled in parallel to the first converter, and a second control unit coupled to the second converter. The second control unit is configured to measure a plurality of phase currents at the second output terminal, determine a harmonic current transmitted by the second converter based on single phase current of the plurality of measured phase currents, and change a time-period of at least one switching cycle of a carrier wave of the second converter based on the determined harmonic current to synchronize with a carrier wave of the first converter.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 19, 2019
    Inventors: Shahid Ali, Ajith Kuttannair Kumar, Govardhan Ganireddy, Prashanth Manikumar Chennamsetty
  • SYSTEM AND METHOD FOR DETERMINING VEHICLE ORIENTATION IN A VEHICLE CONSIST
    Publication number: 20190263430
    Abstract: A system and method includes determining, with a sensor assembly disposed onboard a first aerial vehicle, a direction in which a fluid flows within or through the first aerial vehicle, and determining an orientation of the first aerial vehicle relative to a second aerial vehicle based at least in part on the direction in which the fluid flows within or through the first aerial vehicle.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Eugene Smith, Ajith Kuttannair Kumar, Wolfgang Daum, Martin Paget, Daniel Rush, Sameh Fahmy, Brad Thomas Costa, Seneca Snyder, Jerry Duncan, Mark Bradshaw Kraeling, Michael Scott Miner, Shannon Joseph Clouse, Anwarul Azam, Matthew Lawrence Blair, Nidhi Naithani, Dattaraj Jagdish Rao, Anju Bind, Sreyashi Dey Chaki, Scott Daniel Nelson, Nikhil Uday Naphade, Wing Yeung Chung, Daniel Malachi Ballesty, Glenn Robert Shaffer, Jeffret James Kisak, Dale Martin DiDomenico, Suresh Govindappa, Manibabu Pippalla, Sethu Madhavan, Jared Klineman Cooper, Huan Tan, John Michael Lizzi, Charles Burton Theurer, Balajee Kannan, Romano Patrick, Brad Thomas Costa, James D. Brooks, Micahel Scott Miner, Harry Kirk Matthews, JR., Bradford Wayne Miller, Neeraja Subrahmaniyan, Brian Joseph McManus, Frank Wawrzyniak, Ralph C. Haddock, III, Robert James Foy, James Glen Corry, Steven Andrew Kellner, Joseph Mario Nazareth, Brian William Schroeck, Shawn Arthur McClintic
  • System and method for controlling a vehicle
    Patent number: 10392031
    Abstract: A system includes a drive system having one or more traction motors coupled in driving relationship to a plurality of wheels of a vehicle system. The traction motors are configured to provide both motive power for the vehicle system in a propel mode of operation and retarding effort to brake the vehicle system in a braking mode of operation. The system further includes a parking brake for maintaining a static position of the vehicle system when in an engaged state, and a controller configured to detect when the parking brake is in the engaged state. The controller is further configured to control at least one of the one or more traction motors to provide a braking effort to resist movement of the vehicle system when the parking brake is in the engaged state.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 27, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Bret Dwayne Worden, Ajith Kuttannair Kumar
  • Systems and methods for a vehicle inverter connection bus
    Patent number: 10384548
    Abstract: A bus assembly is provided having a bus bar with first and second conductive layers extending along an insulator sheet interposed between the first and second conductive layers. The first and second conductive layers are partially aligned with respect to each other to form a first overlap region of the insulator sheet. The bus assembly includes a first set of arms having a set of diodes and a second set of arms having a set of switches. The bust bar includes a plurality of bus links coupling the plurality of arms to the bus bar forming a plurality of inverters. Each of bus links include a respective first bracket and a respective second bracket aligned with each other forming a second overlap region of the insulator sheet. The first bracket is electrically coupled to the first conductive layer and the second bracket is electrically coupled to the second conductive layer.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 20, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Sarit Ratadiya, Ajith Kuttannair Kumar, Tharunendra Sekhar, Mark Allen Murphy, Jacob Alan Hubbell, Kevin Ruybal, Emil Nikolaev Nikolov
  • CURRENT REDUCTION SYSTEM FOR INVERTERS CONNECTED TO A COMMON BUS
    Publication number: 20190238061
    Abstract: A system that may include, plural inverters connected to a common bus and at least one capacitor, the inverters configured to convert a direct current (DC) through the common bus to an alternating current (AC) by alternating different switches of the inverters between open and closed states in a respective switching cycle for each of the inverters, and a controller circuit configured to reduce a ripple current conducted onto the common bus to the inverters, by controlling the inverters to apply a frequency shift to the respective switching cycle of one or more of the inverters to spread a harmonic current spectrum along the common bus. The controller circuit is configured to apply the frequency shift to at least a first inverter and a second inverter of the plural inverters.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Inventors: Ajith Kuttannair Kumar, Subhas Chandra Das
  • Power system and an associated method thereof
    Patent number: 10348184
    Abstract: A power system is presented. The power system includes a first converter including a first output terminal a first control unit coupled to the first converter, a second converter including a second output terminal, where the second converter is coupled in parallel to the first converter, and a second control unit coupled to the second converter. The second control unit is configured to measure a plurality of phase currents at the second output terminal, determine a harmonic current transmitted by the second converter based on single phase current of the plurality of measured phase currents, and change a time-period of at least one switching cycle of a carrier wave of the second converter based on the determined harmonic current to synchronize with a carrier wave of the first converter.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 9, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Shahid Ali, Ajith Kuttannair Kumar, Govardhan Ganireddy, Prashanth Manikumar Chennamsetty
  • Method and systems for diagnosing an engine
    Patent number: 10345195
    Abstract: A system includes a generator coupled to an engine and configured to generate electricity from rotational movement of a shaft of the engine, a sensor configured to measure one or more of a parameter of generator output, engine speed, or engine shaft torque, and a controller configured to detect engine imbalance based on a frequency content of a signal output from the sensor in response to a contribution to the frequency content from another component of the system being less than a threshold value.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: July 9, 2019
    Assignee: GE Global Sourcing LLC
    Inventors: Subhas Chandra Das, Ajith Kuttannair Kumar, Shankar Chandrasekaran, Rupam Mukherjee
  • VEHICLE CONTROL SYSTEM AND METHOD
    Publication number: 20190193711
    Abstract: A vehicle control system controls operation of motors of a vehicle and determines whether there is sufficient stored electric energy to power the vehicle through an unpowered segment of a route. The controller changes operation of the vehicle to ensure that the vehicle can travel completely through the unpowered segment by switching which energy storage device provides energy, changing vehicle speed, changing motor torque, changing which route is traveled on, selecting fewer motors to power the vehicle, requesting rendezvous with a recharging vehicle, running the energy storage devices in a degraded mode, initiating a motor to generate power to aid in propulsion and/or recharge the energy storage devices, selecting a different route, controlling the vehicle to draft or mechanically couple to another vehicle, and/or controlling the vehicle to gain momentum or to generate an overcharge.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Inventors: Sharath Srinivas Deshpande, Vishram Vinayak Nandedkar, Ajith Kuttannair Kumar, Wolfgang Daum, Glenn Robert Shaffer
  • LOCOMOTIVE CONTROL SYSTEM
    Publication number: 20190193760
    Abstract: A locomotive control system measures actuating parameters of a locomotive propulsion system and monitors the actuating parameters according to a forcing function of operation of the propulsion system. A degraded component of the locomotive is identified by comparing actuating parameters generated according to the forcing function with actuating parameters expressed as a function of speed of another locomotive propulsion system, examining changes in the generated actuating parameters over time, examining oscillations in movement of the locomotive during gear shifting, comparing wheel speed decreases during another forcing function, and/or comparing a magnitude of a spectrum of the actuating parameters of with one or more designated magnitudes.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 27, 2019
    Inventors: Ajith Kuttannair Kumar, Shankar Chandrasekaran, Subhas Chandra Das, Rupam Mukherjee, Munishwar Ahuja
  • VEHICLE ELECTRIC SUPPLY SYSTEM
    Publication number: 20190185025
    Abstract: An energy system for a vehicle system having a plurality of motors that may include a first power supply assembly that may also include a first battery assembly of a plurality of battery assemblies. The first power supply assembly also may include a first bus coupled to a first motor of the plurality of motors and coupled to the first battery assembly. A second power supply assembly may also be provided that includes a second battery assembly of the plurality of battery assemblies coupled to a second bus that is coupled to a second motor of the plurality of motors. A controller may also be provided that may be configured to vary conduction of electric current from the first battery assembly to the first motor by the first bus based on an operating condition of the second power supply assembly to provide a first input to the first motor that may be different than a second input provided to the second motor by the second battery assembly.
    Type: Application
    Filed: February 11, 2019
    Publication date: June 20, 2019
    Inventor: Ajith Kuttannair Kumar
  • LOCOMOTIVE CONTROL SYSTEM AND METHOD
    Publication number: 20190176862
    Abstract: System includes a controller configured to obtain one or more of a route parameter or a vehicle parameter from discrete examinations of one or more of a route or a vehicle system. The route parameter is indicative of a health of the route over which the vehicle system travels. The vehicle parameter is indicative of a health of the vehicle system. The discrete examinations of the one or more of the route or the vehicle system separated from each other by one or more of location or time. The controller is configured to examine the one or more of the route parameter or the vehicle parameter to determine whether the one or more of the route or the vehicle system is damaged. The system also includes examination equipment configured to continually monitor the one or more of the route or the vehicle system responsive to determining that the one or more of the route or the vehicle is damaged.
    Type: Application
    Filed: February 14, 2019
    Publication date: June 13, 2019
    Inventors: Ajith Kuttannair Kumar, Wolfgang Daum, Martin Paget, Daniel Rush, Brad Thomas Costa, Seneca Snyder, Jerry Duncan, Mark Bradshaw Kraeling, Michael Scott Miner, Shannon Joseph Clouse, Anwarul Azam, Matthew Lawrence Blair, Nidhi Naithani, Dattaraj Jagdish Rao, Anju Bind, Sreyashi Dey Chaki, Scott Daniel Nelson, Nikhil Uday Naphade, Wing Yeung Chung, Daniel Malachi Ballesty, Glenn Robert Shaffer, Jeffrey James Kisak, Dale Martin DiDomenico, Suresh Govindappa, Manibabu Pippalla, Sethu Madhavan, Arunachala Karthik Sridharan, Prabhu Marimuthu, Jared Klineman Cooper, Joseph Forrest Noffsinger, Paul Kenneth Houpt, David Lowell McKay
  • Current reduction system for inverters connected to a common bus
    Patent number: 10291147
    Abstract: The systems and methods described herein relate to electrical circuits. A system (e.g., inverter current system) is provided. The system includes plural inverters connected to a common bus and at least one capacitor. The inverters are configured to convert a direct current (DC) through the common bus to an alternating current (AC), by alternating different switches of the inverters between open and closed states in a respective switching cycle for each of the inverters. The system includes a controller circuit. The controller circuit is configured to adjust a current conducted onto the common bus to the inverters so that a root mean square of the current meets one or more designated criteria. The controller circuit controls the inverters to apply a frequency shift to the respective switching cycle of one or more of the inverters.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: May 14, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Ajith Kuttannair Kumar, Subhas Chandra Das
  • Vehicle control system and method
    Patent number: 10259444
    Abstract: A vehicle control system controls operation of motors of a vehicle and determines whether there is sufficient stored electric energy to power the vehicle through an unpowered segment of a route. The controller changes operation of the vehicle to ensure that the vehicle can travel completely through the unpowered segment by switching which energy storage device provides energy, changing vehicle speed, changing motor torque, changing which route is traveled on, selecting fewer motors to power the vehicle, requesting rendezvous with a recharging vehicle, running the energy storage devices in a degraded mode, initiating a motor to generate power to aid in propulsion and/or recharge the energy storage devices, selecting a different route, controlling the vehicle to draft or mechanically couple to another vehicle, and/or controlling the vehicle to gain momentum or to generate an overcharge.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: April 16, 2019
    Assignee: GE GLOBAL SOURCING LLC
    Inventors: Sharath Srinivas Deshpande, Vishram Vinayak Nandedkar, Ajith Kuttannair Kumar, Wolfgang Daum, Glenn Robert Shaffer