Patents by Inventor Anil K. Sachdev

Anil K. Sachdev 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: 11904376
    Abstract: An energy-dissipating cover for covering a component sensitive to mechanical impulse includes a sheet of selected ferrous or aluminum alloy, the sheet having a top surface, a bottom surface, an outer perimeter, an overall area within the outer perimeter and a nominal thickness of no more than 2.5 mm. The sheet is configured for connection with one or more external structures at a plurality of connection points within the outer perimeter, wherein the overall area comprises a plurality of supported areas and at least one unsupported area. Embossments are formed within the at least one unsupported area and extend outward from the bottom surface. The embossments are shaped, sized and arranged so as to limit orthogonal deflection of the sheet from a mechanical impulse directed normal to the bottom surface of the sheet at the plurality of embossments.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: February 20, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Erik B. Golm, Louis G. Hector, Jr., Anil K. Sachdev, Andrew C. Bobel, Kevin B. Rober, Jianfeng Wang
  • Publication number: 20240038209
    Abstract: A damping panel includes a first metal and a second metal. The first metal has a first surface and a second surface opposite the first surface. The second metal portion has a third surface and a fourth surface opposite the third surface. A fixed region is where the second surface of the first metal is fixed to the third surface of the second metal. A non-fixed region is where the second surface is not fixed to the third surface. A cavity is disposed between the second surface and the third surface at the non-fixed region. A damping material is disposed on at least one of: at least a portion of the cavity on the second surface, at least a portion of the cavity on the third surface, at least a portion of the first surface, and at least a portion of the fourth surface.
    Type: Application
    Filed: July 26, 2022
    Publication date: February 1, 2024
    Inventors: Song HE, Arianna T. MORALES, Anil K. SACHDEV, Pavan Kumar PATRUNI, Hung-yih Isaac DU
  • Publication number: 20240030458
    Abstract: A method of making a battery current collector foil includes heat treating a foil sheet and mechanically roughening the heat treated foil sheet to create a surface roughness of between 2-4 ?m. The heat treating and mechanical roughening of the foil sheet provides improved coating adhesion. One of an anode and cathode coating is then applied to the roughened, heat treated, foil sheet.
    Type: Application
    Filed: July 25, 2022
    Publication date: January 25, 2024
    Inventors: Andrew Clay BOBEL, Louis G. HECTOR, JR., Erik Brandon GOLM, Shaomao XU, Raghunathan K, Anil K. SACHDEV
  • Publication number: 20240019007
    Abstract: A brake rotor having a composite structure may include an annular body defining opposite friction surfaces of the brake rotor. The annular body may include a core made of an Al—Si alloy, a thermal barrier layer made of a thermally insulating material disposed on the core, and a wear-resistant layer made of an Fe—Al—Si—Zr alloy disposed on the core over the thermal barrier layer. The wear-resistant layer may define a first one of the opposite friction surfaces of the annular body.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Heewook LEE, Zhongyi LIU, Anil K. SACHDEV, Tyson Whittier BROWN, Ratandeep Singh KUKREJA
  • Patent number: 11873724
    Abstract: A compressor assembly may include a compressor housing and a compressor impeller disposed within the compressor housing. The compressor housing may have an internal aerodynamic surface that defines a circumferentially extending volute, and the compressor impeller may have an external aerodynamic surface that faces toward at least a portion of the internal aerodynamic surface of the compressor housing. A nonstick coating may be formed on the internal aerodynamic surface of the compressor housing or on the external aerodynamic surface of the compressor impeller. The nonstick coating may prevent foreign material introduced into the compressor assembly from collecting on the internal aerodynamic surface of the compressor housing or on the external aerodynamic surface of the compressor impeller.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 16, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jeremy R. Kirklin, Carnell E. Williams, Anil K. Sachdev
  • Patent number: 11870089
    Abstract: A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: January 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew C. Bobel, Anil K. Sachdev, Patrick H. Clark, Pooja Suresh, Ran Wu, Jermain E. Onye, William Y. Chen, Li Yang, Chao Hu, Yunshan Liu, Kuo Sun
  • Patent number: 11869025
    Abstract: A method for using idle computing power of an electric vehicle includes sending the computing tasks and the task rates for performing the computing tasks to a vehicle controller of the electric vehicle and receiving an acceptance signal from the vehicle controller. The acceptance signal is indicative that the vehicle controller accepted to perform the computing tasks. The method further includes commanding a charging infrastructure to supply electrical power the electric vehicle while the vehicle controller performs the computing tasks.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: January 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Aravind Gangumalla, Anil K. Sachdev, Anil Bika, Nathan Thompson, Ramesh Sethu
  • Publication number: 20230365019
    Abstract: A method for using idle computing power of an electric vehicle includes receiving computing tasks while the electric vehicle is electrically connected to a charging infrastructure, accepting to perform the computing tasks while the electric vehicle is electrically connected to the charging infrastructure, and in response to accepting to perform the computing tasks, performing the computing tasks while the electric vehicle is electrically connected to the charging infrastructure.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 16, 2023
    Inventors: Aravind Gangumalla, Anil K. Sachdev, Anil Bika, Nathan Thompson, Ramesh Sethu
  • Publication number: 20230368235
    Abstract: A method for using idle computing power of an electric vehicle includes sending the computing tasks and the task rates for performing the computing tasks to a vehicle controller of the electric vehicle and receiving an acceptance signal from the vehicle controller. The acceptance signal is indicative that the vehicle controller accepted to perform the computing tasks. The method further includes commanding a charging infrastructure to supply electrical power the electric vehicle while the vehicle controller performs the computing tasks.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 16, 2023
    Inventors: Aravind Gangumalla, Anil K. Sachdev, Anil Bika, Nathan Thompson, Ramesh Sethu
  • Patent number: 11817748
    Abstract: A method for constructing a lamination for a rotary electric machine includes forming an annular lamination from a ferrous core material having a first relative magnetic permeability. The lamination defines through-openings, e.g., for permanent magnets or conductors. Peripheral bridges of the core material extend between the through-openings and an outer or inner diameter surface of the lamination. The method includes diffusing an alloy material having a second relative magnetic permeability into the bridges to form austenitic bridges, with the second relative magnetic permeability being less than the first relative magnetic permeability. A rotary electric machine includes a stator and rotor. A vehicle includes a rotary electric machine connected to the battery pack and to road wheels, and having a rotor and/or a stator constructed in accordance with the method.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: November 14, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Alireza Fatemi, Anil K. Sachdev, Thomas W. Nehl
  • Publication number: 20230326444
    Abstract: A cover for a housing includes a cast plate-like member having a top side and a bottom side with a plurality of raised ribs on the bottom side, the plurality of raised ribs defining a plurality of spaces therebetween. A noise insulating material is provided in at least some of the plurality of spaces. A sheet metal plate is adhered to a top of the plurality of raised ribs by an adhesive.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 12, 2023
    Inventors: Anil K. SACHDEV, Arianna T. Morales, Song He
  • Patent number: 11780160
    Abstract: A three-dimensional object may be manufactured using a powder bed fusion additive manufacturing technique. A layer of powder feed material may be distributed over a solid substrate and scanned with a high-energy laser beam to locally melt selective regions of the layer and form a pool of molten feed material. The pool of molten feed material may be exposed to gaseous nitrogen, carbon, or boron to respectively dissolve nitride, carbide, or boride ions into the pool of molten feed material to produce a molten nitrogen, carbon, or boron-containing solution. The molten nitrogen, carbon, or boron-containing solution may cool and solidify into a solid layer of fused nitride, carbide, or boride-containing material.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anil K Sachdev, Frederick E Pinkerton, Raja K Mishra, Tyson W Brown
  • Patent number: 11766716
    Abstract: A system and method of increasing a cooling rate of a metal sand casting during solidification. The system includes a 3-D printed manufactured sand mold defining a mold cavity, a coolant inlet port extending into the manufactured sand mold, a myriad of coolant passageways surrounding a portion of the mold cavity, and a coolant outlet port in fluid communication with the coolant passageways. The system further includes a coolant vapor extraction system having a collection manifold in fluid connection with the outlet port of the sand mold. A molten metal is poured into the mold cavity and a liquid coolant is introduced into the sand mold. The liquid coolant changes state into a gas phase as it permeates through the sand mold, thereby increasing the cooling rate of the casting. The liquid coolant may be that of a liquid nitrogen.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: September 26, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven L. Burkholder, Thomas W. Gustafson, Qigui Wang, Anil K. Sachdev
  • Patent number: 11769884
    Abstract: An electrode structure for a battery includes a middle layer made of an electrically conductive perforated mesh having a top surface, a bottom surface, a plurality of interconnected electrically conductive segments and a plurality of perforations among adjacent ones of the interconnected segments. A top layer of an electrode material is disposed on the top surface, and a bottom layer of the electrode material is disposed on the bottom surface, such that the top and bottom layers are disposed in physical contact with each other through the perforations in the middle layer. A method of manufacturing the electrode structure includes providing the layer of perforated mesh, applying the top and bottom layers of electrode material to the top and bottom surfaces, and curing the top and bottom layers of electrode material using one or more of heat, electromagnetic radiation and convection to produce a layer of cured electrode structure.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: September 26, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Anil K. Sachdev, Thomas E. Moylan
  • Publication number: 20230299404
    Abstract: A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 21, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrew C. Bobel, Anil K. Sachdev, Patrick H. Clark, Pooja Suresh, Ran Wu, Jermain E. Onye, William Y. Chen, Li Yang, Chao Hu, Yunshan Liu, Kuo Sun
  • Publication number: 20230291288
    Abstract: A rotor for an electric machine includes strengthened structural elements effected through surface alloying and heating via an induction heating fixture. A rotor includes laminations formed to have internal cavities and structural members adjacent the cavities. A number of the laminations are stacked to form a lamination stack. An alloying material is applied to the lamination stack at the structural members. The lamination stack is placed in a fixture so that an inductor extends along the structural members and cooling elements extend through the cavities. A current is applied to the inductor to heat the structural members, alloying the alloying material into the structural members.
    Type: Application
    Filed: January 21, 2022
    Publication date: September 14, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alireza Fatemi, Thomas W. Nehl, Huaxin Li, Anil K. Sachdev
  • Publication number: 20230264602
    Abstract: A cooling system includes a housing configured to enclose an electric vehicle component immersed in cooling fluid and to define a first volume. A variable volume member defines a second volume that varies in response to a first signal. A combined volume is defined by the first volume and the second volume. Heat causes the cooling fluid to transition between a liquid state and a vapor state in the combined volume. A pressure sensor is configured to sense a pressure in the combined volume. A condenser is configured to cause the cooling fluid to transition from the vapor state back to the liquid state. A controller includes a volume adjustment module configured to generate the first signal to vary the second volume of the variable volume member to adjust the combined volume in response to the pressure and a first temperature of the electric vehicle component.
    Type: Application
    Filed: June 24, 2022
    Publication date: August 24, 2023
    Inventors: Jian YAO, Chengwu DUAN, Ming LIU, Chih-hung YEN, Anil K. SACHDEV
  • Patent number: 11735744
    Abstract: A battery electrode, and a method for fabricating the battery electrode are described. The battery electrode includes a current collector having a woven mesh planar sheet that is composed of metallic strands. The metallic strands define a multiplicity of interstitial spaces, and the woven mesh planar sheet includes a first surface and a second surface. An active material including lithium is embedded in the interstitial spaces of a first portion of the woven mesh planar sheet, and an electrical connection tab arranged on a second portion of the woven mesh planar sheet.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: August 22, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Anil K. Sachdev, Leng Mao, Louis G. Hector, Jr., Andrew C. Bobel
  • Patent number: 11715999
    Abstract: A method to make a stator lamination of an axial flux motor for an automobile vehicle includes: constructing a stator having multiple stator stack members, including: providing a stator lamination with individual ones of the stator stack members; forming the stator lamination from a single lamination sheet of steel defining a sinuous-shaped assembly having multiple bends; compressing the stator lamination; and machining the stator lamination to create a first edge by removing a first portion of the multiple bends and to create a second edge opposite to the first edge by removing a second portion of the multiple bends.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: August 1, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anil K. Sachdev, Chengwu Duan, Alireza Fatemi
  • Publication number: 20230238541
    Abstract: An electrode structure for a battery includes a middle layer made of an electrically conductive perforated mesh having a top surface, a bottom surface, a plurality of interconnected electrically conductive segments and a plurality of perforations among adjacent ones of the interconnected segments. A top layer of an electrode material is disposed on the top surface, and a bottom layer of the electrode material is disposed on the bottom surface, such that the top and bottom layers are disposed in physical contact with each other through the perforations in the middle layer. A method of manufacturing the electrode structure includes providing the layer of perforated mesh, applying the top and bottom layers of electrode material to the top and bottom surfaces, and curing the top and bottom layers of electrode material using one or more of heat, electromagnetic radiation and convection to produce a layer of cured electrode structure.
    Type: Application
    Filed: January 27, 2022
    Publication date: July 27, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anil K. Sachdev, Thomas E. Moylan