Patents by Inventor Dat D. Le

Dat D. Le 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 SYSTEM FOR HYBRID ELECTRIC VEHICLE
    Publication number: 20250065863
    Abstract: Powertrains of hybrid electric vehicles, control systems for controlling the powertrains, and methods for controlling the powertrains are disclosed. The powertrain includes an engine, a motor/generator, a battery and a DC bus. The control system is configured to: operate the motor/generator in a first mode when the battery is connected to the DC bus; operate the motor/generator in a second mode when the battery is disconnected from the DC bus, wherein the second mode is a voltage control mode in which the motor/generator controls a voltage of the DC bus; and adjust at least one parameter of the powertrain to assist the motor/generator in controlling the voltage of the DC bus in the second mode.
    Type: Application
    Filed: October 14, 2022
    Publication date: February 27, 2025
    Applicant: Cummins Inc.
    Inventors: Dat D. Le, Kenneth Follen, Jaroslaw Leonarski, Carlos Lana, David Langenderfer