Patents by Inventor Cecilia Maria Thomas

Cecilia Maria Thomas 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).

  • Patent number: 9475393
    Abstract: Charging devices and methods for charging electrically powered vehicles are disclosed. One example charging device includes a processor configured to at least partially control a state voltage and a detection circuit coupled to the processor. The detection circuit includes an energy storage device and a discharge circuit coupled to the energy storage device. The energy storage device is configured to be charged by the state voltage. The discharge circuit is configured to discharge said energy storage device in response to a discharge command from said processor. The processor is configured to determine a charging state associated with the electrically powered vehicle based on a voltage across said energy storage device.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: October 25, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John Kenneth Hooker, Scott Jeffrey Hall, Denis Alagic, Prerana Gajanan Kulkarni, Cecilia Maria Thomas
  • Patent number: 9054535
    Abstract: A charging device for charging an energy storage device is described. The charging device includes a memory for storing a plurality of state machines and a processing device coupled to the memory. The processing device is configured to select a state machine of the plurality of state machines and to operate the charging device in accordance with the selected state machine.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: June 9, 2015
    Assignee: General Electric Company
    Inventors: Cecilia Maria Thomas, John Kenneth Hooker, Scott Jeffrey Hall, Shawn Alan Morgan
  • Patent number: 8854070
    Abstract: A charging device for a power storage device includes a power conduit configured to deliver current to the power storage device and a detection system configured to be coupled to the power conduit. The detection system includes a current control device coupled to the power conduit and configured to control the current delivered to the power storage device. The detection system also includes a test conductor, a current sensor coupled to the test conductor, and a controller coupled to the current sensor by the test conductor. The current sensor is arranged to detect an amount of current within the test conductor and configured to generate a current measurement signal representative of the current detected. The controller is configured to generate a test signal, transmit the test signal through the test conductor, receive the current measurement signal, and determine a status of the detection system based on the current measurement signal.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: October 7, 2014
    Assignee: General Electric Company
    Inventors: Cecilia Maria Thomas, John Kenneth Hooker, Scott Jeffrey Hall, Prerana Gajanan Kulkarni
  • Patent number: 8773049
    Abstract: A method of assembling an electric drive system includes providing a power conversion assembly and coupling an electric power source and a motor to the power conversion assembly. The method also includes coupling a computing device that includes a processor and a memory device operatively coupled to the processor to the power conversion assembly. The method further includes configuring the computing device to record at least one measurement related to a speed of the motor. The method also includes configuring the computing device to calculate a power output limit of the power conversion assembly and limit the power output of the power conversion assembly by limiting torque induced by the motor as a function of the speed of the motor.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: July 8, 2014
    Assignee: General Electric Company
    Inventors: Shyam Sunder Ramamurthy, Richard Francis Whalen, Jr., Cecilia Maria Thomas, Alistair Joseph Booth
  • Publication number: 20130193907
    Abstract: A charging device for a power storage device includes a power conduit configured to deliver current to the power storage device and a detection system configured to be coupled to the power conduit. The detection system includes a current control device coupled to the power conduit and configured to control the current delivered to the power storage device. The detection system also includes a test conductor, a current sensor coupled to the test conductor, and a controller coupled to the current sensor by the test conductor. The current sensor is arranged to detect an amount of current within the test conductor and configured to generate a current measurement signal representative of the current detected. The controller is configured to generate a test signal, transmit the test signal through the test conductor, receive the current measurement signal, and determine a status of the detection system based on the current measurement signal.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: Cecilia Maria Thomas, John Kenneth Hooker, Scott Jeffrey Hall, Prerana Gajana Kulkarni
  • Patent number: 8466656
    Abstract: Charging devices and methods for charging electrically powered vehicles are disclosed. One example charging device includes a processor configured to at least partially control a state voltage and a detection circuit coupled to the processor. The detection circuit includes an energy storage device and a discharge circuit coupled to the energy storage device. The energy storage device is configured to be charged by the state voltage. The discharge circuit is configured to discharge said energy storage device in response to a discharge command from said processor. The processor is configured to determine a charging state associated with the electrically powered vehicle based on a voltage across said energy storage device.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: June 18, 2013
    Assignee: General Electric Company
    Inventors: John Kenneth Hooker, Scott Jeffrey Hall, Denis Alagic, Prerana Gajanan Kulkarni, Cecilia Maria Thomas
  • Publication number: 20130063086
    Abstract: Charging devices and methods for charging electrically powered vehicles are disclosed. One example charging device includes a processor configured to at least partially control a state voltage and a detection circuit coupled to the processor. The detection circuit includes an energy storage device and a discharge circuit coupled to the energy storage device. The energy storage device is configured to be charged by the state voltage. The discharge circuit is configured to discharge said energy storage device in response to a discharge command from said processor. The processor is configured to determine a charging state associated with the electrically powered vehicle based on a voltage across said energy storage device.
    Type: Application
    Filed: June 28, 2012
    Publication date: March 14, 2013
    Inventors: John Kenneth Hooker, Scott Jeffrey Hall, Denis Alagic, Prerana Gajanan Kulkarni, Cecilia Maria Thomas
  • Patent number: 8384347
    Abstract: A charging device for charging an energy storage device is described. The charging device includes a memory for storing a plurality of state machines and a processing device coupled to the memory. The processing device is configured to select a state machine of the plurality of state machines and to operate the charging device in accordance with the selected state machine.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: February 26, 2013
    Assignee: General Electric Company
    Inventors: Cecilia Maria Thomas, John Kenneth Hooker, Scott Jeffrey Hall, Shawn Alan Morgan
  • Publication number: 20130038286
    Abstract: A charging device for charging an energy storage device is described. The charging device includes a memory for storing a plurality of state machines and a processing device coupled to the memory. The processing device is configured to select a state machine of the plurality of state machines and to operate the charging device in accordance with the selected state machine.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 14, 2013
    Inventors: Cecilia Maria Thomas, John Kenneth Hooker, Scott Jeffrey Hall, Shawn Alan Morgan
  • Publication number: 20130015800
    Abstract: A method of assembling an electric drive system includes providing a power conversion assembly and coupling an electric power source and a motor to the power conversion assembly. The method also includes coupling a computing device that includes a processor and a memory device operatively coupled to the processor to the power conversion assembly. The method further includes configuring the computing device to record at least one measurement related to a speed of the motor. The method also includes configuring the computing device to calculate a power output limit of the power conversion assembly and limit the power output of the power conversion assembly by limiting torque induced by the motor as a function of the speed of the motor.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 17, 2013
    Inventors: Shyam Sunder Ramamurthy, Richard Francis Whalen, JR., Cecilia Maria Thomas, Alistair Joseph Booth
  • Publication number: 20120133325
    Abstract: A charging device for charging an energy storage device is described. The charging device includes a memory for storing a plurality of state machines and a processing device coupled to the memory. The processing device is configured to select a state machine of the plurality of state machines and to operate the charging device in accordance with the selected state machine.
    Type: Application
    Filed: August 8, 2011
    Publication date: May 31, 2012
    Inventors: Cecilia Maria Thomas, John Kenneth Hooker, Scott Jeffrey Hall, Shawn Alan Morgan
  • Publication number: 20120098487
    Abstract: Charging devices and methods for charging electrically powered vehicles are disclosed. One example charging device includes a processor configured to at least partially control a state voltage and a detection circuit coupled to the processor. The detection circuit includes an energy storage device and a discharge circuit coupled to the energy storage device. The energy storage device is configured to be charged by the state voltage. The discharge circuit is configured to discharge said energy storage device in response to a discharge command from said processor. The processor is configured to determine a charging state associated with the electrically powered vehicle based on a voltage across said energy storage device.
    Type: Application
    Filed: September 9, 2011
    Publication date: April 26, 2012
    Inventors: John Kenneth Hooker, Scott Jeffrey Hall, Denis Alagic, Prerana Gajanan Kulkarni, Cecilia Maria Thomas