Patents Assigned to GLOBAL TECHNOLOGY OPERATIONS LLC
  • Patent number: 11707802
    Abstract: Angled, single laser weld and a method of forming an angled, single laser weld including arranging a first and second faying surfaces of a first and second component adjacently to form an interface between the components; irradiating at least one of the first and second components at the interface with a laser, wherein the first faying surface defines a plane formed at an angle alpha in the range of +/?5 degrees to 60 degrees from an axis A perpendicular to the first front surface and the second faying surface matches the first faying surface; and forming a junction at the interface with an hourglass shaped weld.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: July 25, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Huaxin Li, Liang Wang, Stephen R. McKenny, Daniel J. Wilson
  • Patent number: 11708869
    Abstract: Presented are clutch-type engine disconnect devices, methods for making/using such disconnect devices, and motor vehicles equipped with such disconnect devices. An engine disconnect device includes a notch plate, which has multiple notches and attaches to a torque converter, and a pocket plate, which has multiple pockets and attaches to an engine's crankshaft. A pawl is movably mounted within each notch; these pawls selectively engage the notches with the pockets. A notch plate insert is nested within each notch, supporting thereon one of the pawls. A selector plate interposed between the pocket and notch plates moves from a first position, to shift the pawls out of engagement with the pockets, and a second position, to move the notch plate inserts within the notches and allow the pawls to engage the notches with the pockets to thereby lock the notch plate to the pocket plate to rotate in unison with each other.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: July 25, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Derek F. Lahr, Chunhao J. Lee, Farzad Samie, Dongxu Li, Dmitriy Bruder
  • Patent number: 11710993
    Abstract: An electric machine includes a stator with stator slots securing therein electrically conductive windings. A rotor is rotatably mounted adjacent the stator and includes a stack of rotor laminates. Each laminate includes circumferentially spaced poles, each of which includes a magnet slot spaced from an insert slot. These laminate magnet slots cooperatively define the rotor's magnet slots. Likewise, the laminates' insert slots cooperatively define the rotor's insert slots. Magnets are mounted inside the rotor's magnet slots, and non-magnetic inserts are mounted inside the rotor's insert slots. One or more poles of each laminate includes a structural web that extends radially through the magnet and insert slots of that pole. Multiple poles of each rotor laminate lack a radially extending structural web. Each rotor laminate is rotated with respect to a neighboring rotor laminate such that each pole with a structural web axially aligns with a pole without a structural web.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: July 25, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Anthony M. Coppola, Alireza Fatemi, Yew Sum Leong, Alan G. Holmes
  • Patent number: 11707792
    Abstract: A method to form a gear for motor vehicles includes one or more of the following: placing a blank between a first tool member and a second tool member, each of the first tool member and the second tool member having a set of teeth; and moving the first tool member and the second tool member towards the blank while rotating the first tool member and the second tool member to form a gear with a set of teeth from the blank. Each tooth of the set of teeth has a topography that varies tooth-to-tooth.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 25, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jason L. Austin, Dale A. Gerard
  • Publication number: 20230231141
    Abstract: The present disclosure provides an electrode for an electrochemical cell. The electrode includes a polymer binder network and a plurality of electroactive material particles. The polymer binder network includes a plurality of fibers defining the polymer binder network. Each of the plurality of fibers includes a plurality of beads and a plurality of filaments. The plurality of filaments extends from at least a portion of the plurality of beads, respectively. The plurality of electroactive material particles is in voids of the polymer binder network. In certain aspects, the present disclosure provides a single- or double-sided electrode component including a current collector and the electrode.
    Type: Application
    Filed: August 9, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dewen KONG, Meiyuan WU, Haijing LIU, Si CHEN
  • Publication number: 20230227011
    Abstract: Methods and systems are provided for a vehicle towing a trailer. In an exemplary embodiment, one or more sensors onboard a vehicle are configured to provide sensor data, and a processor onboard the vehicle is configured to at least facilitate: monitoring a trailer sway of the trailer using the sensor data, based on one or more parameters of the sensor data representing the trailer sway and application of a band-pass filter to the one or more parameters; and mitigating the trailer sway, via instructions provided by the processor to one or more braking systems of the vehicle, the trailer, or both, when it is determined that the trailer sway of the trailer is sufficient to warrant mitigation based on the one or more parameters of the sensor data representing the trailer sway and the application of the band-pass filter to the one or more parameters.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Halit Zengin, Joseph K Moore, Benjamin J Eles
  • Publication number: 20230231437
    Abstract: A motor stator includes a plurality of stacked annular stator laminates defining a stator core having an inner circumference, an outer circumference, a plurality of stator teeth on the inner circumference, and a plurality of ears extending outward from the outer circumference with a respective bolt hole defined in each ear. A first set of the stator laminates includes a plurality of coolant openings therethrough, wherein the coolant openings of adjacent stator laminates communicate with one another in order to define cooling channels inside the stator core. A second set of the stator laminates each include one or more generally radially extending first openings therethrough, wherein the first openings of adjacent stator laminates communicate with one another to define one or more first radial channel segments inside the stator core for providing radial coolant flow between one or more bolt holes and one or more cooling channels.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Edward L. Kaiser, Paul Buchholz, Cheongun Han
  • Publication number: 20230226585
    Abstract: A method of forming a shaped steel object is provided. The method includes cutting a blank from an alloy composition including 0.05-0.5 wt. % carbon, 4-12 wt. % manganese, 1-8 wt. % aluminum, 0-0.4 wt. % vanadium, and a remainder balance of iron. The method also includes heating the blank until the blank is austenitized to form a heated blank, transferring the heated blank to a press, forming the heating blank into a predetermined shape to form a stamped object, and decreasing the temperature of the stamped object to a temperature between a martensite start (Ms) temperature of the alloy composition and a martensite final (Mf) temperature of the alloy composition to form a shaped steel object comprising martensite and retained austenite.
    Type: Application
    Filed: March 20, 2023
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jiachen PANG, Qi LU, Jianfeng WANG
  • Publication number: 20230231135
    Abstract: An electrode includes an electroactive material layer and a protective layer disposed on or adjacent to a surface of the electroactive material layer. The protective layer includes a polymerized cyclic ether and a salt dispersed therewithin. The salt includes a nitrate salt and a phosphate salt. The salt may also include a Lewis acid salt. The protective layer is formed by disposing a solution, including the salt and solvent, on or adjacent to the surface of the electroactive material layer, and polymerizing the solvent. The solvent includes the cyclic ether, and also, one or more organic phosphates.
    Type: Application
    Filed: January 18, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yifan ZHAO, Xingcheng XIAO, Shuru CHEN, Mei CAI
  • Publication number: 20230231254
    Abstract: A composite cover includes a generally rectangular main portion having four main portion edges about a perimeter of the main portion and having opposing top and bottom surfaces defining respective upward and downward directions, and four generally rectangular side portions each contiguous with and extending downward from a respective one of the main portion edges. The main portion and the four side portions generally enclose an interior space and are made of a sandwich structure comprising an interior layer of continuous fiber reinforcements and resin and an exterior layer of metallic foil bonded to the interior layer. A method of manufacturing the cover, having a desired shape generally of a five-walled open box, includes attaching a formed sheet made of metallic foil and having the desired shape onto a shaped composite preform disposed in the desired shape, wherein the shaped composite preform is made of continuous fiber reinforcements and resin.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkateshwar R. Aitharaju, Xiaosong Huang, Gustavo Cibrian Salazar
  • Publication number: 20230231110
    Abstract: Negative electrodes for electrochemical cells that cycle lithium ions are provided. The negative electrodes comprise electroactive material particles that exhibit a core-shell structure defining a core made of a lithiated silicon-based material and a shell surrounding the core that is a bi-layer structure including first and second carbon coating layers. An electrical conductivity of the first carbon coating layer is greater than that of the second carbon coating layer. A method of manufacturing a negative electrode material is provided in which a first carbon coating layer is formed on an outer surface of a silicon-based precursor particle. The silicon-based precursor particle is exposed to a lithium source to form a lithiated silicon-based particle having the first carbon coating layer. A second carbon coating layer is formed on the first carbon coating layer over the lithiated silicon-based particle to form an electroactive material particle.
    Type: Application
    Filed: August 8, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mengyan HOU, Haijing LIU, Xiaochao QUE, Meiyuan WU
  • Publication number: 20230231428
    Abstract: An interior permanent magnet (IPM) electric machine has an improved rotor configuration to manage mechanical stresses induced by electro-magnetic force acting upon permanent magnets housed therein. This includes providing magnet cavities in the rotor with sufficient clearances in the corners wherein a portion of a slot corner is formed with certain curvature shapes using a novel geometry. By doing this, more surface area is obtained to evenly distribute stress that is induced by centrifugal force acting upon the rotor during rotation, thus reducing the stress concentration. Furthermore, an expanded space is achieved between the magnet corner and the rotor lamination, thus providing robust packaging and dynamic support of the permanent magnets in the magnet cavities. Furthermore, the expanded space provides improved clearance for ease of manufacturing and assembly.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Cheng Gong
  • Publication number: 20230226636
    Abstract: Methods for resistance welding, resistance-welded assemblies, and vehicles including resistance-welded assemblies are provided. An exemplary resistance welding method includes compressing a workpiece stack-up with an interface material between first and second workpieces to squeeze a portion of the interface material to a reduced thickness. After compressing the workpiece stack-up, the first welding electrode contacts the first workpiece at an operating contact area between the first welding electrode and the first workpiece that is greater than an initial contact area. The method also includes passing an electrical current between the welding electrodes to form a molten weld pool within the workpieces, and ceasing the passing of the electrical current between the welding electrodes to allow the molten weld pool to solidify into a weld nugget that forms all or part of a weld joint between the workpieces.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 20, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhenke Teng, Pei-chung Wang, Jason M. Brown
  • Patent number: 11702133
    Abstract: A yaw stability control system is provided for a motor vehicle. The system includes one or more cameras, a plurality of wheel speed sensors, a yaw angle sensor, and a steering angle sensor. The system further includes an electric motor connected to a reaction wheel. The system further includes a processor and a memory including instructions such that the processor is programmed to: determine a desired yaw angle of the motor vehicle based on a video signal, speed signals, a yaw signal, and a steering signal. The processor is further programmed to generate an actuation signal associated with the desired yaw angle. The electric motor angularly rotates the reaction wheel at a predetermined angular rate in a predetermined rotational direction to produce a counter-acting torque that rotates the motor vehicle to the desired yaw angle, in response to the electric motor receiving the actuation signal from the processor.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Insu Chang, Jun-mo Kang, SeungHwan Keum
  • Patent number: 11701956
    Abstract: A drive system for an electric vehicle includes a housing having a first housing portion, a second housing portion connected to the first housing portion, and a third housing portion connected to the second housing portion. The third housing portion includes a torque arm connectable to a vehicle chassis. A hypoid gear set is mounted in the first housing portion, and an electric motor is mounted in the third housing portion.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chad R. Brizendine, Bhapinder Puri, Hai Xu, Dan E. Revers, William Matzen
  • Patent number: 11703113
    Abstract: An electrified drivetrain system that maximizes power density, is readily packaged, and improves drivability is described. It includes a propulsion system having an axial-flux rotating electric machine, a torque converter having a selectable one-way clutch, and an output member that is couplable to a drivetrain. The axial-flux rotating electric machine include a first rotor coaxially arranged with a first electric stator. The torque converter includes a fluidic stator, a pump, a turbine and a torque converter clutch. The axial-flux rotating electric machine is arranged coaxially with the torque converter. The first rotor of the axial-flux rotating electric machine is coupled to the pump of the torque converter, and the turbine of the torque converter is rotatably coupled to the output member.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: July 18, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Chengwu Duan, Jian Yao, Lei Hao, Dongxu Li, Chunhao J. Lee, Norman K. Bucknor
  • Patent number: 11703102
    Abstract: A mount bushing includes an outer ring adapted for connection to a mount structure. A tubular bushing insert is disposed inside the outer ring and a main elastomeric isolation arrangement disposed between the outer ring and the tubular bushing insert. A secondary elastomeric element is disposed inside the tubular bushing insert, wherein the secondary elastomeric element is isolated from the main elastomeric isolation element by the tubular bushing insert. A structural tube is disposed inside the secondary elastomeric element and a mounting bolt is inserted through the structural tube.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Sam Mohamad Jomaa, Wojciech Edward Suchta
  • Patent number: 11702096
    Abstract: A vehicle type database includes a plurality of vehicle type profiles. Each of the vehicle type profiles is associated with a vehicle type having a vehicle type specific aerodynamic profile and includes optimal following ranges associated with the vehicle type. Each of the optimal following distance ranges is based on the vehicle type specific aerodynamic profile of the vehicle type and a vehicle speed of the vehicle type wherein a trailing vehicle disposed in the optimal following range is configured to operate at an optimal fuel efficiency. A first optimal following distance range is identified based on a first vehicle type and a first vehicle speed using a first vehicle type profile associated with the first vehicle type. A command is issued to the AR vehicle HUD display system to display a graphical representation of the first optimal following distance to overlay an actual view of the road.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James W. Wells, Thomas A. Seder, Kai-Han Chang, Bahram Khalighi
  • Patent number: 11701802
    Abstract: A method of creating an interface includes: a) adding organometallic compounds to a polymeric material to create an interfacial layer; b) placing the polymeric material having the interfacial layer in a mold; c) heating a deposit material until the deposit material has a predetermined-minimized volumetric density; and d) depositing the deposit material on the interfacial layer. The latent heat of the molten metallic material transfers to the interfacial layer to create chemical bonds and physical interlocks between the interfacial layer and the metallic material. The deposit material cools to form solidified layer on the interfacial layer.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Seongchan Pack, Su Jung Han, Qinglin Zhang
  • Patent number: 11701763
    Abstract: A tool for locking/unlocking a torsional vibration damper screw to/from a crank shaft of an engine includes an elongated tool body having a first end and a second end. The first end of the tool body includes a pair of engagement pins sized and spaced for engaging a pair of apertures in the torsional vibration damper. The second end of the tool body includes an aperture for receiving a fastener for engaging the second end to a mounting location on the engine. A spacer element can be utilized for mounting the second end of the tool body to the engine mounting location.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Antonino Barresi, Gianfranco Badellino