Patents by Inventor Vignesh Namasivayam

Vignesh Namasivayam 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).

  • Operating an electric drive system with low efficiency
    Patent number: 11932116
    Abstract: A control system configured to control a rotating electrical machine of a battery electric vehicle (BEV), having one or more microprocessors that execute a low-efficiency mode of operation for the BEV, such that the low-efficiency mode of operation includes determining a high-efficiency mode current command corresponding to operation at a determined physical rotor angular velocity of a rotor of the rotating electrical machine at a commanded torque value, and increasing current supplied to the rotating electrical machine to a level corresponding to operation at an angular velocity higher than the determined physical angular velocity of the rotor at the commanded torque value.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: March 19, 2024
    Assignee: BORGWARNER INC.
    Inventors: Caleb Wayne Secrest, Siddharth Ballal, Vignesh Namasivayam
  • OPERATING AN ELECTRIC DRIVE SYSTEM WITH LOW EFFICIENCY
    Publication number: 20240083257
    Abstract: A control system configured to control a rotating electrical machine of a battery electric vehicle (BEV), having one or more microprocessors that execute a low-efficiency mode of operation for the BEV, such that the low-efficiency mode of operation includes determining a high-efficiency mode current command corresponding to operation at a determined physical rotor angular velocity of a rotor of the rotating electrical machine at a commanded torque value, and increasing current supplied to the rotating electrical machine to a level corresponding to operation at an angular velocity higher than the determined physical angular velocity of the rotor at the commanded torque value.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 14, 2024
    Inventors: Caleb Wayne Secrest, Siddharth Ballal, Vignesh Namasivayam