Patents by Inventor Felicia SUN

Felicia SUN 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).

  • Methods and system for operating a variable voltage controller
    Patent number: 10611363
    Abstract: Systems and methods for operating an inverter that is electrically coupled to a battery and an electric machine that provides propulsive force to vehicle are described. The systems and methods may selectively adjust a duty cycle of an inverter transistor responsive to battery voltage and a dead time between when a first transistor is deactivated and when a second transistor is activated.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: April 7, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Jiyao Wang, Felicia Sun
  • METHODS AND SYSTEM FOR OPERATING A VARIABLE VOLTAGE CONTROLLER
    Publication number: 20190111911
    Abstract: Systems and methods for operating an inverter that is electrically coupled to a battery and an electric machine that provides propulsive force to vehicle are described. The systems and methods may selectively adjust a duty cycle of an inverter transistor responsive to battery voltage and a dead time between when a first transistor is deactivated and when a second transistor is activated.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 18, 2019
    Inventors: Jiyao Wang, Felicia Sun
  • BATTERY CHARGING SYSTEM AND SERVICING METHOD
    Publication number: 20170203666
    Abstract: A vehicle servicing method according to an exemplary aspect of the present disclosure incomes, among other things, disconnecting a high voltage battery pack of an electrified vehicle from a high voltage bus, connecting an external energy source to an inverter system controller after disconnecting the high voltage battery pack, starting an engine of the electrified vehicle using energy from an external energy source, and charging the high voltage battery pack using power from the engine.
    Type: Application
    Filed: January 19, 2016
    Publication date: July 20, 2017
    Inventors: Felicia SUN, William David TREHARNE