Patents by Inventor Yuqing Tang

Yuqing Tang 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).

  • CONTROL STRATEGY FOR AN ELECTRIC MACHINE IN A VEHICLE
    Publication number: 20140062349
    Abstract: A hybrid-electric vehicle and method of controlling a hybrid-vehicle is provided. The vehicle includes a traction battery, at least one electric-machine, and a controller. The controller is configured to alter a voltage between the battery and the electric-machine based on a measured voltage of the battery or the high voltage bus. In response to an indication that the measured voltage is faulty during a drive cycle, the controller instead alters the voltage between the battery and the electric machine based on a substituted battery voltage signal such that the electric-machine remains operable for the drive cycle.
    Type: Application
    Filed: November 30, 2012
    Publication date: March 6, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Rimma Isayeva, David Crist Gabriel, Michael W. Degner, Yuqing Tang, Hongjie Wu
  • VEHICLE ELECTRIC DRIVE AND POWER SYSTEMS
    Publication number: 20120306412
    Abstract: An automotive electric drive system may include an electric power source, an electric machine, and a DC-DC power converter electrically connected between the electric power source and the electric machine. The DC-DC power converter may include an inductor and a first switch each disposed in a different current path connecting the electric power source and the electric machine. The currents paths may be electrically in parallel.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 6, 2012
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Yuqing Tang, Hongjie Wu, William Paul Perkins
  • METHOD AND APPARATUS FOR CHARGING OR DISCHARGING AN ELECTRICAL DEVICE
    Publication number: 20120091792
    Abstract: An apparatus for charging and discharging an electrical device in vehicle is provided. The apparatus comprises a switch, first and second power sources, and first and second contactors. The first power source is configured to provide a low voltage. The switch is configured to enable/disable the first power source. The second power source is configured to provide a high voltage for charging the electrical device. The first contactor is operably coupled to the first power source and to the second power source, the first contactor being configured to enable the second power source to provide the high voltage for charging the electrical device in response to the switch enabling the first power source. The second contactor is operably coupled to the first power source and to the second power source, the second contactor being in an open state in response to the switch enabling the first power supply.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 19, 2012
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Hongjie Wu, Yuqing Tang
  • Method to determine an operating characteristic of a vehicle power converter
    Patent number: 7557555
    Abstract: Measured or otherwise known operating characteristics of a DC/DC power converter are used to determine, without measuring, an operating characteristic of the DC/DC power converter.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: July 7, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Jin Wang, Bernard Nefcy, Chingchi Chen, Michael Degner, Jeffery Scott, Lynn McCormick, Yuqing Tang, Hongjie Wu
  • METHOD TO DETERMINE AN OPERATING CHARACTERISTIC OF A VEHICLE POWER CONVERTER
    Publication number: 20080246508
    Abstract: Measured or otherwise known operating characteristics of a DC/DC power converter are used to determine, without measuring, an operating characteristic of the DC/DC power converter.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 9, 2008
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Jin Wang, Bernard Nefcy, Chingchi Chen, Michael Degner, Jeffery Scott, Lynn McCormick, Yuqing Tang, Hongjie Wu