Patents Assigned to GM
  • Patent number: 11553274
    Abstract: The present application relates to a system and method for providing autoregressive based residual echo suppression in the STFT domain in a bidirectional vehicle communications system including receiving, from a communications processor, a speaker signal for coupling to a speaker, receiving, from a microphone, a microphone signal wherein the microphone signal includes a voice signal and a residual echo signal, transforming the signals to the STFT domain generating an estimated power spectral density of the residual echo signal in response to a prior power spectral density of a prior residual echo signal, isolating the voice signal from the microphone signal by multiplying the estimated residual echo gain generated using the estimated power spectral density of the residual echo signal with the microphone signal, transforming the signals back to the time domain and coupling the voice signal to the communications processor.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Amos Schreibman
  • Patent number: 11548317
    Abstract: A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Henry Zhan, Jianfeng Wang, Congjie Wang, Ming Liu, Anil K. Sachdev
  • Patent number: 11552541
    Abstract: An induction motor includes a stator and a rotor. The stator is configured to generate a rotating magnetic field. The rotor is disposed inside the stator, separated from the stator by an air gap, and is configured to rotate around an axis in response to the rotating magnetic field. The rotor includes a rotor core, multiple end rings, and multiple collars. The end rings are attached at opposite ends of the rotor core. Each end ring has one of multiple regions disposed outside the air gap. Each region has an outer surface. The collars are attached in a prestressed condition around the outer surface of each region. The prestressed condition is configured to maintain a compressive stress in the end rings at a maximum-designed rotational speed of the rotor.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: John S. Agapiou, Edwin H. Chang, Yew Sum Leong
  • Patent number: 11548060
    Abstract: A high heat-absorption casting core for manufacturing a cast component includes a core body. The core body has at least a portion thereof defined by metal powder. The metal powder is configured to absorb heat energy from the cast component during cooling of the component and solidification thereof. The core body may be additionally defined by a sand fraction in contact with the metal powder fraction. A system and a method for manufacturing a cast component using the high heat-absorption casting core are also envisioned.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Dale A. Gerard, Qigui Wang, Tyson W. Brown, Ali Shabbir, Anil K. Sachdev
  • Patent number: 11549815
    Abstract: The present technology provides systems, methods, and devices that can update aspects of a map as an autonomous vehicle navigates a route, and therefore avoids the need for dispatching a special purpose mapping vehicle for these updates. As the autonomous vehicle navigates the route, data captured by at least one sensor of an autonomous vehicle can indicate an inconsistency between pre-mapped from a high-resolution sensor system describing a location on a map, and current data describing a new feature of the location. The current data can be clustered together based on a threshold spatial closeness, where the clustering describes the new feature, and semantic labels of the pre-mapped data from the high-resolution sensor system can be updated based on the new feature described by the clustered current data.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: January 10, 2023
    Assignee: GM Cruise Holdings LLC.
    Inventors: Juan Fasola, Harman Kumar, Yu-Cheng Lin, Xiaoyu Zhou
  • Patent number: 11549476
    Abstract: An autonomous vehicle having a user interface and a computing system that is in communication with the user interface. The computing system may have at least one processor and at least one memory that stores computer-executable instructions. When executed by the at least one processor, the instructions may cause the at least one processor to output information through the user interface to inform the passenger of an action that the passenger needs to enact prior to the autonomous vehicle beginning to move and determine, based upon an occurrence of the action that the passenger needs to enact, whether the autonomous vehicle is permitted to begin moving.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: January 10, 2023
    Assignee: GM Cruise Holdings LLC.
    Inventors: Jacqueline Shannon, Stephanie Olivia Engle, Albert Boniske
  • Patent number: 11548481
    Abstract: A sensor lens cleaning system for a cylindrical sensor having a sensor lens surface includes an extended member having a first end coupled to the cylindrical sensor and a second end opposite the first end, a nozzle coupled to the second end of the extended member, an actuator coupled to the extended member and configured to control the extended member, and a controller in electronic communication with the actuator and configured to communicate an actuator control signal to the actuator. The nozzle generates an air stream directed at the sensor lens surface.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Nathaniel W. Hart, Adam L. Wright, Michelle M. Clem
  • Patent number: 11552284
    Abstract: A battery electrode includes an electrically conductive sheet and two or more coating layers of an ion transport medium stacked thereon. Each coating layer has a respective two-dimensional array of low porosity regions formed therein, with a remainder of each coating layer that is not the two-dimensional array of low porosity regions defining a respective network of interconnected high porosity regions. Each of the high porosity regions has a feature size D, and an intralayer pitch P is defined between adjacent ones of the high porosity regions of each coating layer, with each pair of adjacent two-dimensional arrays having a respective alignment error E therebetween. A respective first electrically conductive path is formed thereacross via the networks of high porosity regions when D?E?P, with a second electrically conductive path being formed across all of the coating layers via the networks of high porosity regions.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventor: Erik D. Huemiller
  • Patent number: 11548511
    Abstract: A vehicle, system and method for operating the vehicle is disclose. The system includes a radar system and a processor. The radar system locates a gap between targets in a second lane adjoining a first lane, with the host vehicle residing in the first lane. The processor is configured to determine a viability value of the gap for a lane change, select the gap based on the viability value, align the host vehicle with the selected gap, and merge the host vehicle from the first lane into the selected gap in the second lane.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jeffrey S. Parks, Paul A. Adam, Gabriel T. Choi, Braden J. Swantick
  • Patent number: 11548522
    Abstract: A head up display (HUD) system includes: a difference module configured to determine a speed difference based on a difference between (a) a present speed of a vehicle and (b) a target speed of the vehicle; a light source configured to, via a windshield of the vehicle, generate a virtual display that is visible within a passenger cabin of the vehicle; and a display control module configured to control the light source to include a visual indicator of the speed difference in the virtual display.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joseph F. Szczerba, Omer Tsimhoni, John P. Weiss
  • Patent number: 11552519
    Abstract: Presented are segmented hairpin bar conductors for electric machines, methods for making/using such segmented bar conductors, electromagnetic motors using such segmented bar conductors, and vehicles equipped with an induction motor generator unit using segmented hairpin bar conductors. An electric machine includes a stator that defines multiple circumferentially spaced, radially elongated stator slots. A rotor is located adjacent and movable with respect to the stator. One or more permanent magnets are mounted to the rotor, and one or more U-shaped hairpin windings are mounted to the stator in juxtaposed spaced relation to the magnet(s). Each hairpin winding is formed from an array of collimated, electrically conductive wires that are bundled together into a unitary bar conductor. The segmented hairpin winding has a pair of hairpin legs, each of which adjoins and projects from a respective end of a hairpin crown. Each hairpin leg inserts into a respective one the stator slots.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas W. Nehl, Alireza Fatemi
  • Patent number: 11548563
    Abstract: A wheelhouse liner for a vehicle includes a body portion and a wheelhouse deflector positioned inside the wheelhouse. The deflector includes a deflector portion extending from a first edge of the wheelhouse liner to form a lip at an outboard edge of the wheelhouse liner. In some examples, the wheelhouse deflector includes a deflector surface defining a depression configured to direct a flow of fluid away from a vehicle sensor.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventor: Danilo A. Oliveira
  • Patent number: 11548336
    Abstract: A vehicle suspension system for a vehicle having a body supported on a frame includes a first suspension component having a surface and a bracket cantilevered from the surface, a second suspension component including a surface portion, and a spring element mounted to one of the bracket and the surface portion of the second suspension component. Interaction between the spring element and the another of the bracket and the surface portion of the second suspension component limits upward travel of the body of the vehicle.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Jeffery L. Vogt
  • Patent number: 11548527
    Abstract: A control system of a vehicle includes: a target speed module configured to, using a parametric driver model and based on first driver parameters, second driver parameters, and vehicle parameters, determine a target vehicle speed trajectory for a future predetermined period; a driver parameters module configured to determine the first driver parameters based on conditions within a predetermined distance in front of the vehicle; and a control module configured to adjust at least one actuator of the vehicle based on the target vehicle speed trajectory and a present vehicle speed.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: January 10, 2023
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Carnegie Mellon University
    Inventors: Bharatkumar Hegde, Junfeng Zhao, Lung En Jan, Chen-fang Chang, Ragunathan Rajkumar
  • Patent number: 11549626
    Abstract: In an embodiment, a method of forming a cooling plate, comprises laser welding a plurality of weld lines to physically connect a first substrate and a second substrate wherein the plurality of weld lines forms an inflatable track; and inflating the inflatable track with an inflation fluid to form a cooling channel in the cooling plate. In another embodiment, the cooling plate can comprise a first substrate and a second substrate and a plurality of weld lines can form a fluid tight seal for a cooling channel located therebetween.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: January 10, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anil K. Sachdev, Arianna T. Morales, Jason Mazza, Andrew C. Bobel
  • Patent number: 11548471
    Abstract: A seatbelt system for automatically detecting damage to a seatbelt webbing includes a strip of seatbelt webbing, a sensor, and processing circuitry. The strip of seatbelt webbing includes an embedded conductive material that extends through the strip of seatbelt webbing. The sensor is connected to the seatbelt webbing and is configured to measure electrical flow through the embedded conductive material. The processing circuitry is configured to receive the measurement of electrical flow from the sensor and to generate an alert based on the measurement.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: January 10, 2023
    Assignee: GM Cruise Holdings LLC
    Inventors: Chase Kaufman, Jeffrey Brandon
  • Publication number: 20230006201
    Abstract: Over-lithiated cathode materials for use in an electrochemical cell that cycles lithium ions, and methods of making and using the same, are provided. The over-lithiated cathode materials may include positive electroactive materials selected from the group consisting of: Li2Mn2O4, Li2MSiO4 (where M is Fe, Mn, Co, or Mn), Li2VOPO4, and combinations thereof. Methods for preparing the positive electroactive material may include charging an electrochemical cell at a first voltage window and discharging the electrochemical cell at a second a second voltage window that is less than the first voltage window. The electrochemical cell may include a positive electrode, including the positive electroactive material, and a negative electrode, including a volume-expanding negative electroactive material. During charging, lithium ions and electrons may move from the positive electrode to the negative electrode.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 5, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lei WANG, Jiazhi HU
  • Patent number: 11541795
    Abstract: An inflatable system includes a first bladder configured to contain gas and a second bladder configured to contain gas. The first bladder includes a top wall, a bottom wall opposite of the top wall, a sidewall extending between and connected to perimeter edges of the top and bottom walls, and a plurality of tethers extending between and connected to interior surfaces of the top and bottom walls. The second bladder includes a top wall, a bottom wall opposite of its top wall, a sidewall extending between and connected to perimeter edges of its top and bottom walls, and a plurality of tethers extending between and connected to interior surfaces of its top and bottom walls. The bottom wall of the first bladder is secured to the top wall of the second bladder.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 3, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Paul W. Alexander, Louis D. Thole, Conner J. Stormer, Daniel W. Booth, Wonhee M. Kim, David Acosta
  • Patent number: 11541793
    Abstract: A vehicle includes a passenger compartment having a first row of seats and a second row of seats disposed behind the first row of seats. The second row of seats including a seat back configured to fold forward toward the first row of seats. The seat back of the second row of seats further including at least one headrest that is movable from a retracted position to an extended position. The at least one headrest includes a retraction mechanism configured to retract the headrest to a retracted position automatically when the seat back of the second row of seats is folded forward.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: January 3, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anthony L. Smith, Vipin Kapoor
  • Patent number: 11545708
    Abstract: Methods for manufacturing a pouch-type battery cell include disposing one or more electrode pairs between a first aluminum pouch layer and a second aluminum pouch layer, sealing the first pouch layer and the second pouch layer to form a peripheral seal joining the first pouch layer and the second pouch layer to form a pouch with an outer edge encasing the anode and the cathode, applying a photocatalytic polymer coating precursor to the outer edge of the pouch, and photo-curing the photocatalytic polymer coating precursor to form a conformal edge coating. The photocatalytic polymer coating precursor includes one or more photo-initiators, one or more acrylates, and one or more polyamines. The polyamines can include tertiary amines including ?-CH functional groups, diamines represented by the formula H2N—R—NH2, wherein R represents saturated and unsaturated aliphatic moieties, and N,N?-(2,2-dimethylpropylidene) hexamethylenediamine.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: January 3, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Kestutis A. Sonta, James W. Boswell, III