Patents by Inventor Gowrisankar Devaraj

Gowrisankar Devaraj 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: 12643417
    Abstract: Systems and methods for an electric drive unit. The electric drive unit includes, in one example, a first electric machine rotationally coupled to a first drive wheel via a first gear train and a second electric machine rotationally coupled to a second drive wheel via a second gear train. The electric drive unit further includes a disconnect clutch that is configured to selectively rotationally couple the first electric machine and the second electric machine and a park lock assembly that is coupled to one of the first gear train and the second gear train and is configured to inhibit rotation of the corresponding gear train.
    Type: Grant
    Filed: January 4, 2024
    Date of Patent: June 2, 2026
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Gowrisankar Devaraj, Cody Ott
  • Patent number: 12539769
    Abstract: Systems and methods are provided for an electric drive unit. The electric drive unit includes a first electric machine and a second electric machine, a first transmission coupled to the first electric machine, a second transmission coupled to the second electric machine and a disconnect. The disconnect is arranged between a shaft coupled to the first transmission and a shaft coupled to the second transmission and configured to mechanically couple the first transmission and the second transmission.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: February 3, 2026
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Gowrisankar Devaraj, Cody Ott
  • Patent number: 12485748
    Abstract: Systems and methods for an electric drive unit. The electric drive unit includes, in one example, a first electric machine rotationally coupled to a first drive wheel via a first gear train and a second electric machine rotationally coupled to a second drive wheel via a second gear train. The electric drive unit further includes a disconnect clutch that is configured to selectively rotationally couple the first electric machine and the second electric machine and a park lock assembly that is coupled to one of the first gear train and the second gear train and is configured to inhibit rotation of the corresponding gear train.
    Type: Grant
    Filed: January 4, 2024
    Date of Patent: December 2, 2025
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Gowrisankar Devaraj, Cody Ott
  • Publication number: 20250364869
    Abstract: Systems are provided for a support for a gear train. For an example, a system, comprising: an electric motor comprising an electric motor output shaft; a gear train comprising an input gear coupled to a first gear arranged on a lay shaft, further comprising a second gear arranged on the lay shaft and coupled to an output gear, wherein the input gear is further coupled to the electric motor output shaft and the output gear is coupled to a gear train output shaft; and a support physically coupled to a housing of the electric motor, wherein the support is configured to support a bearing coupled to the output gear.
    Type: Application
    Filed: May 22, 2024
    Publication date: November 27, 2025
    Inventors: Cody OTT, Gowrisankar DEVARAJ
  • Publication number: 20250222761
    Abstract: Systems and methods for an electric drive unit. The electric drive unit includes, in one example, a first electric machine rotationally coupled to a first drive wheel via a first gear train and a second electric machine rotationally coupled to a second drive wheel via a second gear train. The electric drive unit further includes a disconnect clutch that is configured to selectively rotationally couple the first electric machine and the second electric machine and a park lock assembly that is coupled to one of the first gear train and the second gear train and is configured to inhibit rotation of the corresponding gear train.
    Type: Application
    Filed: January 4, 2024
    Publication date: July 10, 2025
    Inventors: Gowrisankar DEVARAJ, Cody OTT
  • Publication number: 20250222785
    Abstract: Systems and methods for an electric drive unit. The electric drive unit includes, in one example, a first electric machine rotationally coupled to a first drive wheel via a first gear train and a second electric machine rotationally coupled to a second drive wheel via a second gear train. The electric drive unit further includes a disconnect clutch that is configured to selectively rotationally couple the first electric machine and the second electric machine and a park lock assembly that is coupled to one of the first gear train and the second gear train and is configured to inhibit rotation of the corresponding gear train.
    Type: Application
    Filed: January 4, 2024
    Publication date: July 10, 2025
    Inventors: Gowrisankar DEVARAJ, Cody OTT
  • Publication number: 20250206146
    Abstract: Systems and methods are provided for an electric drive unit. The electric drive unit includes a first electric machine and a second electric machine, a first transmission coupled to the first electric machine, a second transmission coupled to the second electric machine and a disconnect. The disconnect is arranged between a shaft coupled to the first transmission and a shaft coupled to the second transmission and configured to mechanically couple the first transmission and the second transmission.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 26, 2025
    Inventors: Gowrisankar DEVARAJ, Cody OTT
  • Publication number: 20250183759
    Abstract: Systems are provided herein for an oil distribution system of an electric drive unit comprising a back-to-back twin motor configuration. In one example, an oil distributor comprises a first distribution channel comprising a first inlet section and a first outlet section; and a second distribution channel comprising a second inlet section and a second outlet section, wherein the first and second inlet sections are included in a main body and the first and second outlet sections protrude radially away from the main body in opposite directions; and the first distribution channel distributes oil to a first rotor shaft coupled to a first electric motor and the second distribution channel distributes oil to a second rotor shaft coupled to a second electric motor.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 5, 2025
    Inventors: Cody OTT, Gowrisankar DEVARAJ, Gaetan MARCEAU
  • Patent number: 12208677
    Abstract: Methods and systems are provided for a multi-speed transmission. The multi-speed transmission includes a housing, an electric motor with a stator and a rotor positioned within the housing, and a planetary assembly positioned on a first axial side of the electric motor. The transmission further includes a first and second clutch unit spaced away from one another, each including a synchronizer, and designed to selectively rotationally couple to the rotor and to rotationally couple the rotor to different gears in the planetary assembly and where the electric motor and planetary assembly are coaxially arranged.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: January 28, 2025
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventor: Gowrisankar Devaraj
  • Patent number: 11949319
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: April 2, 2024
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Gowrisankar Devaraj, Eric M. Engerman, Charles B. Lohr, III, Gordon M. McIndoe, Travis J. Miller, Ryan D. Nelms, Matthew Simister, Ned W. Wright
  • Publication number: 20230216374
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Application
    Filed: February 24, 2023
    Publication date: July 6, 2023
    Inventors: Gowrisankar DEVARAJ, Eric M. ENGERMAN, Charles B. LOHR, III, Gordon M. MCINDOE, Travis J. MILLER, Ryan D. NELMS, Matthew SIMISTER, Ned W. WRIGHT
  • Patent number: 11621606
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 4, 2023
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Gowrisankar Devaraj, Eric M. Engerman, Charles B. Lohr, III, Gordon M. McIndoe, Travis J. Miller, Ryan D. Nelms, Matthew Simister, Ned W. Wright
  • Publication number: 20200106337
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 2, 2020
    Inventors: Gowrisankar Devaraj, Eric M. Engerman, Charles B. Lohr, III, Gordon M. Mclndoe, Travis J. Miller, Ryan D. Nelms, Matthew Simister, Ned w. Wright