Patents by Inventor Janpreet S. Basi

Janpreet S. Basi 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).

  • High-voltage system with low-voltage control architecture and method
    Patent number: 10974616
    Abstract: A high-voltage electrical system includes a high-voltage electrical bus, a low-voltage controller performing battery management system (BMS) functions, and a rechargeable energy storage system (RESS) connected to the HV electrical bus. The RESS has contactors connected to the voltage rails, a battery pack, a current sensor outputting a voltage signal indicative of pack current, cell monitoring units (CMUs) connected to designated battery cells that measure corresponding cell voltages, and voltage isolation hardware between the CMUs and the LV controller. The voltage isolation hardware includes the contactors and may include a transformer. The RESS and LV controller are connected via LV serial connections such that the LV controller performs the designated BMS functions, including monitoring the pack current and controlling an open/closed state of the contactors. A powertrain system includes the electrical system, an electric machine, and a coupled load.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 13, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Fang Wang, Jeffrey Johnson, Theodore T. Kim, Tao Wang, Janpreet S. Basi
  • HIGH-VOLTAGE SYSTEM WITH LOW-VOLTAGE CONTROL ARCHITECTURE AND METHOD
    Publication number: 20190389316
    Abstract: A high-voltage electrical system includes a high-voltage electrical bus, a low-voltage controller performing battery management system (BMS) functions, and a rechargeable energy storage system (RESS) connected to the HV electrical bus. The RESS has contactors connected to the voltage rails, a battery pack, a current sensor outputting a voltage signal indicative of pack current, cell monitoring units (CMUs) connected to designated battery cells that measure corresponding cell voltages, and voltage isolation hardware between the CMUs and the LV controller. The voltage isolation hardware includes the contactors and may include a transformer. The RESS and LV controller are connected via LV serial connections such that the LV controller performs the designated BMS functions, including monitoring the pack current and controlling an open/closed state of the contactors. A powertrain system includes the electrical system, an electric machine, and a coupled load.
    Type: Application
    Filed: June 22, 2018
    Publication date: December 26, 2019
    Applicant: GM Global Technology Operations LLC
    Inventors: Fang Wang, Jeffrey Johnson, Theodore T. Kim, Tao Wang, Janpreet S. Basi