Patents by Inventor Sean C. Landers

Sean C. Landers 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).

  • Mobile machines, electric drive systems, and methods for testing electric drive systems
    Patent number: 10808641
    Abstract: A method for testing power of an electric drive system includes setting the electric motor of the electric drive system to a desired speed and applying a brake load to the system. The method also includes increasing the brake load until an engine of the electric drive system is fully loaded. After the engine is fully loaded, the method includes maintaining the brake load until the acceleration remains between the upper predetermined threshold and the lower predetermined threshold for the predetermined period of time, which indicates that the engine has stabilized at full power. Once the engine is at full power, the commanded power of the electric drive system required for stabilizing the engine at full power is averaged, and the average power is compared to a predetermined pass/fail threshold to determine if the electric drive system has sufficient power.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: October 20, 2020
    Assignee: Caterpillar Inc.
    Inventors: Sean C. Landers, Sangameshwar Sonth
  • MOBILE MACHINES, ELECTRIC DRIVE SYSTEMS, AND METHODS FOR TESTING ELECTRIC DRIVE SYSTEMS
    Publication number: 20200132009
    Abstract: A method for testing power of an electric drive system includes setting the electric motor of the electric drive system to a desired speed and applying a brake load to the system. The method also includes increasing the brake load until an engine of the electric drive system is fully loaded. After the engine is fully loaded, the method includes maintaining the brake load until the acceleration remains between the upper predetermined threshold and the lower predetermined threshold for the predetermined period of time, which indicates that the engine has stabilized at full power. Once the engine is at full power, the commanded power of the electric drive system required for stabilizing the engine at full power is averaged, and the average power is compared to a predetermined pass/fail threshold to determine if the electric drive system has sufficient power.
    Type: Application
    Filed: October 29, 2018
    Publication date: April 30, 2020
    Applicant: Caterpillar Inc.
    Inventors: Sean C. Landers, Sangameshwar Sonth