Patents by Inventor Gabriel Ooi

Gabriel Ooi 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: 11520362
    Abstract: In some examples, a system includes an energy storage device configured to deliver power to a bus or receive power from a bus via a power converter. The system also includes a controller configured to determine that a voltage magnitude on the bus is less than a first threshold level in a first instance and cause the energy storage device to deliver power to the bus in response to determining that the voltage magnitude is less than the first threshold level. The controller is also configured to determine that the voltage magnitude on the bus is greater than a second threshold level in the second instance, wherein the second threshold level is greater than a first threshold level and cause the energy storage device to receive power from the bus in response to determining that the voltage magnitude is greater than the second threshold level.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: December 6, 2022
    Assignees: Rolls-Royce Singapore Pte. Ltd., Rolls-Royce Corporation
    Inventors: Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty, Stephen Andrew Long
  • Patent number: 11520361
    Abstract: In some examples, a system includes a bus and a first power converter connected to the bus. The system also includes a second power converter connected to the bus, the second power converter having a topology different from the topology of the first power converter. The system further includes a power source and an energy storage device connected to the bus via the first and second power converters, respectively. In addition, the system includes a source controller configured to control the first power converter and a storage controller configured to control the second power converter. The system also includes a system controller configured to determine a first set point for the first power converter, transmit an indication of the first set point to the source controller, determine a second set point for the second power converter, and transmit an indication of the second set point to the storage controller.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: December 6, 2022
    Assignees: Rolls-Royce Singapore Pte. Ltd., Rolls-Royce Corporation
    Inventors: Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty, Stephen Andrew Long
  • Patent number: 11518538
    Abstract: In some examples, a system includes a load configured to generate propulsion based on power received from a bus via a power converter. The system also includes a controller configured to determine that a voltage magnitude on the bus is not less than a threshold level in a first instance and cause the power converter to deliver a first magnitude of power to the load in response to determining that the voltage magnitude is not less than the threshold level in the first instance. The controller is also configured to determine that the voltage magnitude on the bus is less than the threshold level in a second instance and cause the power converter to deliver a second magnitude of power to the load in response to determining that the voltage magnitude is less than the threshold level in the second instance, the second magnitude being less than the first magnitude.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: December 6, 2022
    Assignees: Rolls-Royce Singapore Pte. Ltd., Rolls-Royce Corporation
    Inventors: Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty, Stephen Andrew Long
  • Publication number: 20220258876
    Abstract: In some examples, a system includes a load configured to generate propulsion based on power received from a bus via a power converter. The system also includes a controller configured to determine that a voltage magnitude on the bus is not less than a threshold level in a first instance and cause the power converter to deliver a first magnitude of power to the load in response to determining that the voltage magnitude is not less than the threshold level in the first instance. The controller is also configured to determine that the voltage magnitude on the bus is less than the threshold level in a second instance and cause the power converter to deliver a second magnitude of power to the load in response to determining that the voltage magnitude is less than the threshold level in the second instance, the second magnitude being less than the first magnitude.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 18, 2022
    Inventors: Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty, Stephen Andrew Long
  • Publication number: 20220261023
    Abstract: In some examples, a system includes an energy storage device configured to deliver power to a bus or receive power from a bus via a power converter. The system also includes a controller configured to determine that a voltage magnitude on the bus is less than a first threshold level in a first instance and cause the energy storage device to deliver power to the bus in response to determining that the voltage magnitude is less than the first threshold level. The controller is also configured to determine that the voltage magnitude on the bus is greater than a second threshold level in the second instance, wherein the second threshold level is greater than a first threshold level and cause the energy storage device to receive power from the bus in response to determining that the voltage magnitude is greater than the second threshold level.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 18, 2022
    Inventors: Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty, Stephen Andrew Long
  • Publication number: 20220261022
    Abstract: In some examples, a system includes a bus and a first power converter connected to the bus. The system also includes a second power converter connected to the bus, the second power converter having a topology different from the topology of the first power converter. The system further includes a power source and an energy storage device connected to the bus via the first and second power converters, respectively. In addition, the system includes a source controller configured to control the first power converter and a storage controller configured to control the second power converter. The system also includes a system controller configured to determine a first set point for the first power converter, transmit an indication of the first set point to the source controller, determine a second set point for the second power converter, and transmit an indication of the second set point to the storage controller.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 18, 2022
    Inventors: Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty, Stephen Andrew Long