Patents by Inventor Saravanan Paramasivam

Saravanan Paramasivam 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: 10224584
    Abstract: An exemplary battery pack heat exchanger includes a wall of an enclosure, and a heat exchanger lid held against the wall to provide a chamber that receives a fluid to exchange thermal energy with a battery array that is outside of the chamber. An exemplary method of managing battery pack thermal energy includes moving a fluid through a chamber within an enclosure wall of a battery pack to adjust thermal energy levels of the battery pack.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: March 5, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Dave Moschet, Rajaram Subramanian, Sai K. Perumalla, Saravanan Paramasivam
  • Publication number: 20190058172
    Abstract: An exemplary battery pack retention assembly includes, among other things, a conforming bracket that secures a battery array within a battery pack. The conforming bracket includes platforms configured to flex as the conforming bracket is secured. The flexing facilitates aligning an area of the conforming bracket with a thermal exchange plate. An exemplary battery pack retention method includes, among other things, flexing a conforming bracket to reduce a gap between the battery array and a thermal exchange plate. The flexing occurs when securing a battery array to within a battery pack.
    Type: Application
    Filed: August 18, 2017
    Publication date: February 21, 2019
    Inventors: Shamsuddin A. Syed, Saravanan Paramasivam, Rajaram Subramanian, David J. Pfeiffer
  • Publication number: 20190027722
    Abstract: A battery pack includes a grouping of battery cells and a plurality of array frames for retaining the grouping of battery cells. Each of the plurality of array frames includes a ratchet feature. A column bolt includes a raised surface configured to mate with the ratchet feature of each of the plurality of array frames to secure the plurality of array frames together.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 24, 2019
    Inventors: Rajaram SUBRAMANIAN, Saravanan PARAMASIVAM, Mladen MARJANOVIC, Kimberley KING, Steve DROSTE
  • Publication number: 20190027797
    Abstract: A battery assembly includes a grouping of battery cells and an array plate assembly contacting at least one cell of the grouping of battery cells. The array plate assembly including a spring plate adapted to exert a compressive spring force against the at least one cell. The compressive spring force may be based on a dimensional profile of the grouping of battery cells.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 24, 2019
    Inventors: Saravanan PARAMASIVAM, Kimberley KING, Dave MOSCHET, Bhaskara BODDAKAYALA, RAJARAM SUBRAMANIAN
  • Publication number: 20180375179
    Abstract: A battery pack includes a heat dissipating structure, an array frame positioned against the heat dissipating structure, and a battery cell retained by the array frame and arranged so at least one surface of the battery cell is exposed by the array frame and is contiguous with the heat dissipating structure. The heat dissipating structure may be a heat exchanger plate or a thermal interface material (TIM).
    Type: Application
    Filed: June 27, 2017
    Publication date: December 27, 2018
    Inventors: Kimberley KING, Steve F. CHORIAN, Saravanan PARAMASIVAM, Rajaram SUBRAMANIAN, Bhaskara BODDAKAYALA, Steve DROSTE, Mladen MARJANOVIC
  • Publication number: 20180309176
    Abstract: A battery assembly according to a non-limiting aspect of the present disclosure includes, among other things, a housing, an array of battery cells provided within the housing, and a thermal exchange assembly adjacent the array and including an inlet, an outlet, and a tube configured to direct fluid from the inlet to the outlet. Further, the tube is overmolded with the housing. This disclosure also relates to a method of forming a battery assembly.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 25, 2018
    Inventors: Dave Moschet, Kimberley King, Saravanan Paramasivam, Sai K. Perumalla, Rajaram Subramanian
  • Publication number: 20180309175
    Abstract: An exemplary support assembly for a battery array includes a spacer axially separating a first battery cell from a second battery cell, a frame that holds the spacer, and an insert secured to the frame. The insert is compressed against the first battery cell. An exemplary method of supporting a battery cell includes compressing an insert against a corner region of a battery cell. The insert is secured to a frame made of a first material. The insert is made of a second material that is softer than the first material.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 25, 2018
    Inventors: Steve F. Chorian, Kimberley King, Rajaram Subramanian, Steve Droste, Saravanan Paramasivam
  • Publication number: 20180277337
    Abstract: Use of care areas in scanning electron microscopes or other review tools can provide improved sensitivity and throughput. A care area is received at a controller of a scanning electron microscope from, for example, an inspector tool. The inspector tool may be a broad band plasma tool. The care area is applied to a field of view of a scanning electron microscope image to identify at least one area of interest. Defects are detected only within the area of interest using the scanning electron microscope. The care areas can be design-based or some other type of care area. Use of care areas in SEM tools can provide improved sensitivity and throughput.
    Type: Application
    Filed: June 30, 2017
    Publication date: September 27, 2018
    Inventors: Vidyasagar Anantha, Arpit Yati, Saravanan Paramasivam, Martin Plihal, Jincheng Lin
  • Publication number: 20180269441
    Abstract: An exemplary battery assembly includes, among other things, battery cells distributed along an axis and disposed on a base. A bracket extends axially along a side of the battery cells. A plate extends from a first side to an opposing, second side of the battery cells. A retention flange of the plate is held between the bracket and the base. An exemplary method of retaining includes holding battery cells relative to a base using a bracket extending along a side of the array, and positioning a retention flange of a plate between the bracket and the base. A primary portion of the plate is disposed along an axial end of the array.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 20, 2018
    Inventors: Juil Yum, Kimberley King, Rajaram Subramanian, Saravanan Paramasivam, David J. Pfeiffer
  • Publication number: 20180261812
    Abstract: This disclosure details battery assemblies for electrified vehicles. An exemplary battery assembly may employ one or more compression limiters that maintain the integrity and positioning of a plurality of battery arrays housed inside the battery assembly. The compression limiters may include a body and an attachment head near an end of the body. The attachment head is configured to engage a portion of a support structure of a battery array.
    Type: Application
    Filed: May 15, 2018
    Publication date: September 13, 2018
    Inventors: Saravanan PARAMASIVAM, Rajaram SUBRAMANIAN, Dave MOSCHET, Tom M. GUNTHER, Kanchana PERUMALLA
  • Patent number: 10056642
    Abstract: A battery assembly according to an exemplary aspect of the present disclosure includes, among other things, a plurality of battery cells and a thermally conductive film wrapped around each of the plurality of battery cells. Each thermally conductive film is contiguous with six sides of each of the plurality of battery cells.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: August 21, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Bhaskara Boddakayala, Saravanan Paramasivam, Sai Perumalla, Evan Mascianica
  • Publication number: 20180212291
    Abstract: A battery pack includes a support structure, an array frame mounted relative to the support structure, and a thermal fin held within the array frame and grounded to the support structure. The thermal fin may include a grounding extension that is grounded to the support structure.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 26, 2018
    Inventors: Saravanan Paramasivam, Steve Droste, Rajaram Subramanian, Kimberley King, Mladen Marjanovic
  • Publication number: 20180197714
    Abstract: Wafer inspection with stable nuisance rates and defect of interest capture rates are disclosed. This technique can be used for discovery of newly appearing defects that occur during the manufacturing process. Based on a first wafer, defects of interest are identified based on the classified filtered inspection results. For each remaining wafer, the defect classifier is updated and defects of interest in the next wafer are identified based on the classified filtered inspection results.
    Type: Application
    Filed: December 7, 2017
    Publication date: July 12, 2018
    Inventors: Martin Plihal, Erfan Soltanmohammadi, Saravanan Paramasivam, Sairam Ravu, Ankit Jain, Prasanti Uppaluri, Vijay Ramachandran
  • Patent number: 10003052
    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: Grant
    Filed: March 10, 2015
    Date of Patent: June 19, 2018
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Saravanan Paramasivam, Rajaram Subramanian, Dave Moschet, Tom M. Gunther, Kanchana Perumalla
  • Publication number: 20180151858
    Abstract: A battery pack includes a support structure, an array frame including a fastener housing, and a fastener received through the fastener housing for mounting the array frame to the support structure. The array frame may be mounted to the support structure using a top-down approach that includes inserting a fastener through a fastener housing of the array frame.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 31, 2018
    Inventors: Saravanan Paramasivam, Steve Droste, Rajaram Subramanian, Kimberley King
  • Patent number: 9983148
    Abstract: A method for production line monitoring during semiconductor device fabrication includes acquiring a plurality of inspection results from a plurality of reference samples with an inspection sub-system. The method includes storing the acquired inspection results and geometric pattern codes for each of the reference samples in a database. The method includes acquiring an additional inspection result from an additional sample, where the additional inspection result includes an additional set of geometric pattern codes for identifying each defect identified within the additional inspection result from the additional sample. The method also includes correlating the set of geometric pattern codes of the additional sample with the geometric pattern codes from the reference set of samples to identify at least one of one or more new patterns or one or more patterns displaying a frequency of occurrence above a selected threshold.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: May 29, 2018
    Assignee: KLA-Tencor Corporation
    Inventors: Saravanan Paramasivam, Martin Plihal
  • Patent number: 9985325
    Abstract: An exemplary method of controlling flow through a battery pack includes, in a first operating condition, moving flow through a first section of an enclosure using a first fan, and moving flow through a second section of the enclosure using a second fan. In a second operating condition, the method moves flow through the second section using the first fan.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 29, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Patrick Daniel Maguire, Kenneth James Miller, Saravanan Paramasivam
  • Patent number: 9982953
    Abstract: An example battery pack spacer includes a base and at least one rib extending laterally from the base. The rib is configured to turn flow of a coolant through a battery pack.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: May 29, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Evan Mascianica, Saravanan Paramasivam, LeeAnn Wang, Kimberley King, Daniel Miller, James Lawrence Swoish
  • Patent number: 9979056
    Abstract: An exemplary fan assembly of a flow control system includes a first fan that communicates flow through a first section of a battery pack enclosure under a first system operating condition, and communicates flow through a second section of the battery pack enclosure under a second system operating condition. A second fan communicates flow through the second section under the first system operating condition.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 22, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Patrick Daniel Maguire, Kenneth James Miller, Saravanan Paramasivam
  • Publication number: 20180131051
    Abstract: A battery assembly according to a non-limiting aspect of the present disclosure includes, among other things, an array of battery cells, and a thermal exchange plate assembly adjacent the array. The thermal exchange plate assembly includes an inlet, an outlet, a main channel, and a bypass channel configured to direct fluid from the inlet to the outlet while substantially bypassing the main channel.
    Type: Application
    Filed: November 4, 2016
    Publication date: May 10, 2018
    Inventors: Saravanan Paramasivam, Kimberley King, Rajaram Subramanian, Edward Popyk, Samir Subba, Dave Moschet