Patents by Inventor Dhammika S. Wijesundera

Dhammika S. Wijesundera 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: 10571521
    Abstract: A method for detecting a failure mode in an electronic selector having a button coupled to a first switch, a second switch, and a third switch, the method includes incrementing a button activation counter once for each button activation event and incrementing a first switch-closed counter, a second switch-closed counter, and a third switch-closed counter once for each button activation event if the respective switch is closed at any time during the button activation event. The method further includes incrementing a first switch-opened counter, a second switch-opened counter, and a third switch-opened counter once for each button activation event. The method further includes evaluating a fault status of the first switch, the second switch, or the third switch when the button activation counter reaches or exceeds a predetermined threshold; and reporting the fault status of the first switch, the second switch or the third switch.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 25, 2020
    Assignee: GM Global Technology Operations, LLC
    Inventors: Dhammika S. Wijesundera, Ming Zhao, Joshua McDonough, Junghyun Kim
  • Publication number: 20190369164
    Abstract: A method for detecting a failure mode in an electronic selector having a button coupled to a first switch, a second switch, and a third switch, the method includes incrementing a button activation counter once for each button activation event and incrementing a first switch-closed counter, a second switch-closed counter, and a third switch-closed counter once for each button activation event if the respective switch is closed at any time during the button activation event. The method further includes incrementing a first switch-opened counter, a second switch-opened counter, and a third switch-opened counter once for each button activation event. The method further includes evaluating a fault status of the first switch, the second switch, or the third switch when the button activation counter reaches or exceeds a predetermined threshold; and reporting the fault status of the first switch, the second switch or the third switch.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 5, 2019
    Inventors: Dhammika S. Wijesundera, Ming Zhao, Joshua McDonough, Junghyun Kim