Patents by Inventor Rajaram Subramanian

Rajaram Subramanian 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: 20160308187
    Abstract: A vehicle traction battery assembly including a pair of battery cells and a busbar is provided. Each of the battery cells may include a terminal and one or more locating features. The busbar may span between the cells and define a pair of arms each having a member sized to at least partially interlock with the one or more locating features. The busbar may span between the cells such that the busbar covers at least a portion of upper surfaces defined by each of the cells. At least one of the terminal apertures may be spaced in between outer edges of the respective arms such that a first and second surface area provide space sufficient for weld spots.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 20, 2016
    Inventors: Rajaram Subramanian, Francisco Fernandez, Stuart Schreiber, Tommy M. Gunther, Yunan Guo
  • Patent number: 9472792
    Abstract: A vehicle traction battery cell retainer includes a sidewall defining a plurality of windows each surrounded by a window flange extending therefrom, a top channel extending from the sidewall and terminating in a top flange, and a bottom channel extending from the retainer sidewall, defining a plurality of air bypass windows, and terminating in a bottom flange, the top and bottom flanges arranged for interlocking with an adjacent retainer of the traction battery. A vehicle traction battery assembly includes first and second adjacent battery cell arrays each having associated first and second retainers having a sidewall defining air flow windows and integrated top and bottom channels formed of unitary construction with interlocking flanges to couple the first and second arrays.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: October 18, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Rajaram Subramanian, Brian Utley, Yongcai Wang, LeeAnn Wang
  • Publication number: 20160301057
    Abstract: A bus bar assembly according to an exemplary aspect of the present disclosure includes, among other things, a plurality of battery cells and a bus bar assembly that electrically connects the plurality of battery cells. The bus bar assembly includes a flexible cable, a voltage sense lead connected to the flexible cable, and a bus bar connected to the voltage sense lead.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 13, 2016
    Inventors: Rajaram Subramanian, Tom M. Gunther, Francisco Fernandez, Yunan Guo, Stuart Schreiber
  • Patent number: 9461286
    Abstract: An exemplary attachment device includes a twist-lock rotatable from a first position to a second position. The twist-lock in the first position permits movement of a battery array to and from an installed position within a battery pack. The twist-lock in the second position secures the battery array in the installed position.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: October 4, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Rajaram Subramanian, Patrick Daniel Maguire, Rohit Gunna, Steve Droste
  • Publication number: 20160268562
    Abstract: A battery assembly according to an exemplary aspect of the present disclosure includes, among other things, a compression limiter including a body and an attachment head near a first end of the body and configured to engage a structural member of the battery assembly.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 15, 2016
    Inventors: Saravanan PARAMASIVAM, Rajaram SUBRAMANIAN, Dave MOSCHET, Tom M. GUNTHER, Kanchana PERUMALLA
  • Patent number: 9413047
    Abstract: A vehicle traction battery assembly is provided which may include a support structure, a thermal interface component, and a pressure plate. The support structure may include a center bar arrangement and may be configured to support a thermal plate and battery cell array. The thermal interface component may be disposed between the array and plate. The pressure plate may be on an upper face of the array. The assembly may be configured to exert a force against the pressure plate to compress the thermal interface component between the thermal plate and array. The center bar arrangement may include a center bar extending along the array and may be shaped to define a passageway between the upper face and the center bar. The pressure plate may be at least partially disposed within the passageway.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: August 9, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: David Moschet, Rajaram Subramanian, Sai K. Perumalla, Saravanan Paramasivam, Brian Utley
  • Publication number: 20160218332
    Abstract: A battery array frame according to an exemplary aspect of the present disclosure includes, among other things, a frame body extending along a longitudinal axis and including a top frame rail, a bottom frame rail and frame arms that connect between the top frame rail and the bottom frame rail. An insert extends inside the frame body.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 28, 2016
    Inventors: Hyung Min BAEK, Rajaram SUBRAMANIAN
  • Publication number: 20160204403
    Abstract: A battery array according to an exemplary aspect of the present disclosure includes, among other things, a rail that supports a battery cell and a tie bracket connected to the rail and configured to limit travel of the rail.
    Type: Application
    Filed: March 22, 2016
    Publication date: July 14, 2016
    Inventors: Yongcai WANG, Rajaram SUBRAMANIAN, Saravanan PARAMASIVAM
  • Patent number: 9385356
    Abstract: An electric vehicle battery assembly according to an exemplary aspect of the present disclosure includes, among other things, a battery cell, a rail securing the cell, and a terminal holder in direct contact with the rail.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: July 5, 2016
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC.
    Inventors: Ronald D Gilland, Adam Denlinger, Tom M Gunther, Rajaram Subramanian, Edward Popyk
  • Patent number: 9356270
    Abstract: A battery assembly includes a lower array including opposing endplates having upwardly protruding pins, and an upper array including opposing endplates having pin bores. The upper array includes a mid-tray defining holes positioned such that the pins are receivable in the holes and the bores when the arrays are properly oriented and such that the mid-tray blocks the pins from being received within the bores when the arrays are positioned in a reverse orientation.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: May 31, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Rajaram Subramanian, Tommy M. Gunther, Daniel Miller, Steven Droste, Andrew Elms
  • Publication number: 20160133897
    Abstract: A battery assembly according to an exemplary aspect of the present disclosure includes, among other things, a plurality of battery cells and a support structure positioned about the plurality of battery cells. The support structure includes at least one sidewall and the at least one sidewall includes a first flange that extends adjacent a top surface of each of the plurality of battery cells and a second flange that extends beyond a bottom surface of each of the plurality of battery cells.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 12, 2016
    Inventors: Stuart Schreiber, Patrick Daniel Maguire, Rajaram Subramanian, Edward Popyk, Keith Kearney
  • Publication number: 20160133895
    Abstract: An exemplary assembly includes an extrusion providing a channel that receives a portion of a battery cell frame. The extrusion is securable to a support to secure the battery cell frame relative to the support.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Rajaram Subramanian, Tom M. Gunther, Saravanan Paramasivam, Steve Droste, Rohit Gunna
  • Publication number: 20160118701
    Abstract: A vehicle including a pair of spaced apart battery cell arrays, a pair of sub-structures configured to retain the arrays, and a thermal plate assembly disposed between the arrays is provided. Each of the sub-structures may include opposing endplates and opposing upper and lower sidewalls secured to the endplates and each having a flange extending toward and overlapping with the respective flange of the other sub-structure to join the sub-structures without mechanical fastening. The thermal plate assembly may be disposed between the overlapping flanges and the arrays to form a sandwich formation. The thermal plate assembly may include at least one thermal interface component disposed on a side of a thermal plate, and in contact with a portion of at least one of the battery cell arrays.
    Type: Application
    Filed: October 28, 2014
    Publication date: April 28, 2016
    Inventors: Rajaram SUBRAMANIAN, Patrick Daniel MAGUIRE, Tommy M. GUNTHER, Keith KEARNEY, Stuart SCHREIBER, John JARDINE
  • Patent number: 9321337
    Abstract: A battery array according to an exemplary aspect of the present disclosure includes, among other things, a rail that supports a battery cell and a tie bracket connected to the rail and configured to limit travel of the rail.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 26, 2016
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Yongcai Wang, Rajaram Subramanian, Saravanan Paramasivam
  • Publication number: 20160099449
    Abstract: A vehicle traction battery assembly is provided which may include a support structure, a thermal interface component, and a pressure plate. The support structure may include a center bar arrangement and may be configured to support a thermal plate and battery cell array. The thermal interface component may be disposed between the array and plate. The pressure plate may be on an upper face of the array. The assembly may be configured to exert a force against the pressure plate to compress the thermal interface component between the thermal plate and array. The center bar arrangement may include a center bar extending along the array and may be shaped to define a passageway between the upper face and the center bar. The pressure plate may be at least partially disposed within the passageway.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 7, 2016
    Inventors: David Moschet, Rajaram Subramanian, Sai K. Perumalla, Saravanan Paramasivam, Brian Utley
  • Publication number: 20160093847
    Abstract: A traction battery assembly for a vehicle includes an array of cells stacked on a tray. The array of cells defines opposing longitudinal sides and opposing lateral sides. First and second L-shaped components are attached to the tray. Each of the components includes an end wall and a sidewall that are integrally formed to define a substantially 90° corner. The first and second components are attached together such that each of the sidewalls is disposed adjacent one of the longitudinal sides and each of the end walls is disposed adjacent one of the lateral sides to form a housing around the tray that has an open top and an open bottom.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 31, 2016
    Inventors: Tommy M. GUNTHER, Rajaram SUBRAMANIAN, Stuart SCHREIBER, John JARDINE, Keith KEARNEY
  • Publication number: 20160064721
    Abstract: An exemplary battery assembly includes a first terminal holder, and a terminal at least partially surrounded by the first terminal holder. The first terminal holder includes a locating feature to position the first terminal holder relative to a second terminal holder.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventors: Tom M. Gunther, Rajaram Subramanian, Adam Denlinger, Stuart Schreiber, Ronald D. Gilland
  • Publication number: 20160056431
    Abstract: An exemplary attachment device includes a twist-lock rotatable from a first position to a second position. The twist-lock in the first position permits movement of a battery array to and from an installed position within a battery pack. The twist-lock in the second position secures the battery array in the installed position.
    Type: Application
    Filed: August 25, 2014
    Publication date: February 25, 2016
    Inventors: Rajaram Subramanian, Patrick Daniel Maguire, Rohit Gunna, Steve Droste
  • Publication number: 20160056439
    Abstract: A battery cell separator according to an exemplary aspect of the present disclosure includes, among other things, a top surface and a bottom surface. A body extends between the top surface and the bottom surface and includes a first contoured surface on a first side of the body and a second contoured surface on a second side. The first contoured surface and the second contoured surface converging between the top surface and a center of the body and diverging between the center and the bottom surface.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 25, 2016
    Inventors: Rajaram SUBRAMANIAN, Brian UTLEY, Suriyaprakash Ayyangar Janarthanam, Dave MOSCHET, Bhaskara BODDAKAYALA, Anil Reddy PULLALAREVU
  • Publication number: 20160056426
    Abstract: A battery assembly includes a lower array including opposing endplates having upwardly protruding pins, and an upper array including opposing endplates having pin bores. The upper array includes a mid-tray defining holes positioned such that the pins are receivable in the holes and the bores when the arrays are properly oriented and such that the mid-tray blocks the pins from being received within the bores when the arrays are positioned in a reverse orientation.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 25, 2016
    Inventors: Rajaram SUBRAMANIAN, Tommy M. GUNTHER, Daniel MILLER, Steven DROSTE, Andrew ELMS