Patents by Inventor Ryan D. Nelms

Ryan D. Nelms 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).

  • Publication number: 20260084507
    Abstract: A system and method for an electric axle. The electric axle includes, in one example, a traction motor, an input planetary gear set arranged coaxial to the traction motor and including a sun gear rotationally coupled to the traction motor, a carrier including a first section coupled to multiple carrier shafts and a second section removably coupled to the multiple carrier shafts, and multiple planet gears rotationally mounted on the multiple carrier shafts. In the electric axle, the second section is rotationally coupled to a downstream component and the downstream component is arranged coaxial to the input planetary gear set.
    Type: Application
    Filed: September 24, 2024
    Publication date: March 26, 2026
    Inventors: Darren J. ZISKOVSKY, Eric M. ENGERMAN, Ryan D. NELMS, Benjamin POWELL
  • Publication number: 20260085747
    Abstract: A system and method for an electric axle. The electric axle includes, in one example, a traction motor and an input planetary gear set arranged coaxial to the traction motor. The input planetary gear set includes a sun gear rotationally coupled to the traction motor, a carrier including a first section coupled to multiple carrier shafts and a second section removably coupled to the multiple carrier shafts, and multiple planet gears rotationally mounted on the multiple carrier shafts. The electric axle further includes a differential coupled to the downstream component and in the electric axle, the differential is positioned parallel to and offset from the traction motor, the second section is rotationally coupled to a downstream component and the downstream component is arranged coaxial to the input planetary gear set.
    Type: Application
    Filed: September 24, 2024
    Publication date: March 26, 2026
    Inventors: Darren J. ZISKOVSKY, Eric M. ENGERMAN, Ryan D. NELMS, Benjamin POWELL
  • Publication number: 20250326291
    Abstract: An electric drive axle with a two-speed gearbox and shifting system is described herein that advantageously reduces a size and volume of the electric drive axle for tight cross-car packaging in a constrained environment for integration of the gearbox with an electric machine, inverter, and differential. The gearbox includes higher and lower range planetary gear sets that are arranged coaxially with the electric machine. The higher and lower range planetary gear sets can be operated in a higher range mode, where mechanical power from an electric machine bypasses the lower range planetary gear set, and in a lower range mode, where mechanical power from the electric machine travels through the lower range planetary gear set and the higher range planetary gear set. The described configuration expands a functionality of the gearbox and increases the axle's capability with regard to operating range and driving environment.
    Type: Application
    Filed: April 23, 2025
    Publication date: October 23, 2025
    Inventors: Benjamin POWELL, Eric M. ENGERMAN, Jens SCHNEBELE, Ryan D. NELMS, Burke SMITH
  • Publication number: 20250296385
    Abstract: Methods and systems for provide an axle system operated by a single motor to independently operate both a parking system and a disconnect system by changing rotation of a motor shaft and a method for controlling parking operation and clutch operation using the single motor. In another embodiment, the approaches disclosed herein include a line of axles wherein different variants of the electric axles may be configured with one of a parking system and a disconnect system, both the parking system and the disconnect system, and neither of the parking system and the disconnect system.
    Type: Application
    Filed: March 24, 2025
    Publication date: September 25, 2025
    Inventors: Eric M. ENGERMAN, Ryan D. NELMS
  • Patent number: 12365230
    Abstract: An electric axle is provided. The electric axle includes, in one example, a first electric machine directly coupled to a first planetary gear set, a second electric machine directly coupled to a second planetary gear set and a housing. The housing includes a first section that encloses the first electric machine and the first planetary gear set, a second section that encloses the second electric machine and the second planetary gear set, and a decreased diameter section that extends between the first section and the second section.
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: July 22, 2025
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Andy Perakes, Eric M. Engerman, Ryan D. Nelms, Rick C. Sigmon
  • Publication number: 20240413710
    Abstract: Methods and systems for an electric machine. The electric machine includes, in one example, a sleeve that encloses a stator and a rotor, a housing removably coupled to the sleeve and circumferentially enclosing a portion of the sleeve. The electric machine further includes a fluid inlet that extends through at least one of the sleeve and the housing and is in fluidic communication with a stator cooling assembly.
    Type: Application
    Filed: May 30, 2024
    Publication date: December 12, 2024
    Inventors: Eric M. ENGERMAN, Ryan D. NELMS, Gopinathan THIRUNAVUKKARASU
  • Patent number: 12066096
    Abstract: Systems are provided for a differential carrier assembly for a vehicle. In one example, a system includes a planet carrier coupled to a differential carrier and a planet carrier comprising a plurality of planet shafts including a cutout interfacing with a pilot interface of the differential carrier.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: August 20, 2024
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Benjamin Powell, Ryan D. Nelms
  • Patent number: 12013018
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. A compound idler assembly is connected to the electric motor. The compound idler assembly includes at least one gear-clutch assembly in driving engagement with the output shaft of the electric motor. A differential is connected to the compound idler assembly, and in selective driving engagement with the compound idler assembly.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: June 18, 2024
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Eric M. Engerman, Ryan D. Nelms, Amar Nivarthi
  • Patent number: 11994205
    Abstract: Systems are provided for an integrated oil shroud and pump oil pickup. In some examples, an assembly may include an oil shroud element configured to enclose a lower portion of at least one rotating gear of a gearbox, and an oil intake element with an oil filter and an oil outlet configured to couple to a pump of an oil recirculating circuit, where the oil intake element is in face-sharing contact with the oil shroud element.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: May 28, 2024
    Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
    Inventors: Benjamin Powell, Ryan D. Nelms
  • 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: 20240068556
    Abstract: Systems are provided for a differential carrier assembly for a vehicle. In one example, a system includes a planet carrier coupled to a differential carrier and a planet carrier comprising a plurality of planet shafts including a cutout interfacing with a pilot interface of the differential carrier.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Inventors: Benjamin POWELL, Ryan D. NELMS
  • Publication number: 20230294503
    Abstract: An electric axle is provided. The electric axle includes, in one example, a first electric machine directly coupled to a first planetary gear set, a second electric machine directly coupled to a second planetary gear set and a housing. The housing includes a first section that encloses the first electric machine and the first planetary gear set, a second section that encloses the second electric machine and the second planetary gear set, and a decreased diameter section that extends between the first section and the second section.
    Type: Application
    Filed: February 23, 2023
    Publication date: September 21, 2023
    Inventors: Andy PERAKES, Eric M. ENGERMAN, Ryan D. NELMS, Rick C. SIGMON
  • 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: 20220275855
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. A compound idler assembly is connected to the electric motor. The compound idler assembly includes at least one gear-clutch assembly in driving engagement with the output shaft of the electric motor. A differential is connected to the compound idler assembly, and in selective driving engagement with the compound idler assembly.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Inventors: Eric M. ENGERMAN, Ryan D. NELMS, Amar NIVARTHI
  • Patent number: 11415208
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. A compound idler assembly is connected to the electric motor. The compound idler assembly includes at least one gear-clutch assembly in driving engagement with the output shaft of the electric motor. A differential is connected to the compound idler assembly, and in selective driving engagement with the compound idler assembly.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 16, 2022
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Eric M. Engerman, Ryan D. Nelms, Amar Nivarthi
  • Patent number: 11092214
    Abstract: A high ratio traction drive transmission includes a sun roller, a traction ring, a plurality of traction planets in contact with the sun roller and the traction ring, at least one reaction roller in contact with at least one of the traction planets, and a carrier assembly coupled to at least one of the traction planets and the at least one reaction roller. The sun roller has a first longitudinal axis and the traction ring is aligned coaxially with a second longitudinal axis, wherein the first longitudinal axis is radially offset from the second longitudinal axis.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: August 17, 2021
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Daniel J. Dawe, Joseph J. Horak, Jeremy M. Kaiser, Charles B. Lohr, III, Ryan D. Nelms, Sebastian J. Peters, Benjamin L. Powell
  • Publication number: 20200292042
    Abstract: An electric drive axle of a vehicle includes an electric motor having an output shaft. A compound idler assembly is connected to the electric motor. The compound idler assembly includes at least one gear-clutch assembly in driving engagement with the output shaft of the electric motor. A differential is connected to the compound idler assembly, and in selective driving engagement with the compound idler assembly.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 17, 2020
    Inventors: Eric M. ENGERMAN, Ryan D. NELMS, Amar NIVARTHI
  • Publication number: 20200124137
    Abstract: A high ratio traction drive transmission includes a sun roller, a traction ring, a plurality of traction planets in contact with the sun roller and the traction ring, at least one reaction roller in contact with at least one of the traction planets, and a carrier assembly coupled to at least one of the traction planets and the at least one reaction roller. The sun roller has a first longitudinal axis and the traction ring is aligned coaxially with a second longitudinal axis, wherein the first longitudinal axis is radially offset from the second longitudinal axis.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 23, 2020
    Inventors: Daniel J. Dawe, Joseph J. Horak, Jeremy M. Kaiser, Charles B. Lohr, III, Ryan D. Nelms, Sebastian J. Peters, Benjamin L. Powell
  • 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