Patents by Inventor Joel R. Briggs

Joel R. Briggs 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).

  • Drivetrain for a hybrid propulsion system
    Patent number: 10913344
    Abstract: A drivetrain for a powertrain system is arranged to transfer mechanical power between an internal combustion engine, an electric machine and a driveline. The drivetrain includes a gearbox including an input member disposed on a first end, an output member disposed on a second end and an auxiliary geartrain including a first mechanical drive mechanism, a second mechanical drive mechanism, and an auxiliary driveshaft. The auxiliary driveshaft rotatably couples the first mechanical drive mechanism and the second mechanical drive mechanism. The electric machine includes a stator attached to the second end of the gearbox and annular to the output member of the gearbox. The second mechanical drive mechanism is rotatably coupled to the rotor of the electric machine. The first mechanical drive mechanism is rotatably coupled to the input member of the gearbox. The internal combustion engine is also coupled to the input member of the gearbox.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: February 9, 2021
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Derek F. Lahr, Joel R. Briggs
  • DRIVETRAIN FOR A HYBRID PROPULSION SYSTEM
    Publication number: 20200290447
    Abstract: A drivetrain for a powertrain system is arranged to transfer mechanical power between an internal combustion engine, an electric machine and a driveline. The drivetrain includes a gearbox including an input member disposed on a first end, an output member disposed on a second end and an auxiliary geartrain including a first mechanical drive mechanism, a second mechanical drive mechanism, and an auxiliary driveshaft. The auxiliary driveshaft rotatably couples the first mechanical drive mechanism and the second mechanical drive mechanism. The electric machine includes a stator attached to the second end of the gearbox and annular to the output member of the gearbox. The second mechanical drive mechanism is rotatably coupled to the rotor of the electric machine. The first mechanical drive mechanism is rotatably coupled to the input member of the gearbox. The internal combustion engine is also coupled to the input member of the gearbox.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 17, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Derek F. Lahr, Joel R. Briggs