Patents Assigned to GM
  • Publication number: 20250088046
    Abstract: An electrical machine includes a rotationally-fixed stator defining a rotational axis of the electrical machine and having a plurality of stator magnetic poles, the stator magnetic poles disposed about the rotational axis. The electrical machine also has a rotor rotatably mounted coaxially with the rotational axis and axially spaced from the stator, the rotor having a plurality of permanent magnets facing the stator magnetic poles. Each stator magnetic pole includes a plurality of ferromagnetic laminations in a lamination stack that extends from a radially-inward extent to a radially-outward extent relative to the rotational axis, and a ferromagnetic composite pole portion affixed to the radially-outward extent or the radially-inward extent of the lamination stack of the stator magnetic pole.
    Type: Application
    Filed: October 19, 2023
    Publication date: March 13, 2025
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Vincent Fedida, Jian Yao, Chengwu Duan
  • Publication number: 20250087217
    Abstract: A system for speech separation includes data processing hardware and memory hardware in communication with the data processing hardware, the memory hardware storing instructions that when executed on the data processing hardware cause the data processing hardware to perform operations including (i) generating a two-dimensional representation of a speech mixture, (ii) separating the speech mixture into an initial separation (iii) supplying the initial separation and speaker representations to a refinement module, (iv) refining the initial separation based on the initial separation and the speaker representations, (v) estimating a mask per speaker, and (vi) applying the masks to the two-dimensional representation to create two-dimensional, per-speaker representations.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 13, 2025
    Applicants: GM Global Technology Operations LLC, Bar-Ilan University
    Inventors: Boris Rubenchik, Elior Hadad, Eli Tzirkel-Hancock, Sharon Gannot, Ethan Fetaya
  • Publication number: 20250088054
    Abstract: A cooled axial flux electric motor includes a rotationally-fixed stator defining a rotational axis and having a plurality of conductive stator magnetic poles arranged radially about the axis. The motor also includes a rotor spaced axially from one side from the stator and rotatably mounted coaxially with the rotational axis and defined by inside and outside diameters. The rotor has a first exterior surface facing the stator and a second exterior surface arranged opposite the first exterior surface. A ferromagnetic rotor core defines the rotor second exterior surface. The rotor also includes alternating south and north pole permanent magnets (PMs) arranged on the rotor core symmetrically around the axis and facing the stator. The rotor additionally includes channels extending radially outwardly across the rotor and configured to direct a coolant, via centrifugal force, from the inside diameter toward the outside diameter as the rotor rotates about the axis.
    Type: Application
    Filed: March 19, 2024
    Publication date: March 13, 2025
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jian Yao, Chengwu Duan, Vincent Fedida, SeungHwan Keum, Alan G. Holmes
  • Publication number: 20250088047
    Abstract: A stator for an electrical machine defines a central axis and has a first stator face facing parallel to the central axis and a second stator face facing parallel to the central axis, with the first stator face and the second stator face facing in opposite directions. The stator includes a plurality of ferromagnetic segments disposed about the central axis, each segment having a pair of parallel faces that face parallel to the central axis of the stator. On each stator face, faces of adjacent segments of the plurality of segments form gaps therebetween, the gaps extending radially relative to the central axis, the gaps on the first stator face being angularly offset relative to the central axis from the gaps on the second stator face.
    Type: Application
    Filed: October 19, 2023
    Publication date: March 13, 2025
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Vincent Fedida, Chengwu Duan, Jian Yao, Denghao Fan
  • Publication number: 20250083562
    Abstract: A method of active energy management for a vehicle including a rechargeable energy storage system (RESS). The method includes: calculating, via a controller programmed with a usable energy algorithm, a usable energy of the at least one power module based on an anode lithium surface density; comparing, via the controller, the usable energy calculated with a first threshold; providing, via the controller, a first notification to a user when the usable energy calculated reaches a first threshold; providing, via the controller, a second notification to the user when the usable energy calculated reaches a second threshold, providing a third notification to the user when the usable energy calculated reaches a third threshold, and suggesting actions to the user based on the notifications.
    Type: Application
    Filed: September 12, 2023
    Publication date: March 13, 2025
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jun-mo Kang, Chen-Fang Chang
  • Publication number: 20250088385
    Abstract: A set of devices are coupled to a control area network (CAN) bus. At least some of the devices include switchable resistors that can apply a termination resistor to the CAN bus. Identification pins are used to identify devices on the CAN bus, and also to identify which device or devices are at the ends of the CAN bus. If a device is at an end of the CAN bus, the switch of the switchable resistor is set to couple the termination resistor to the CAN bus. Otherwise, the termination resistor is not coupled to the CAN bus.
    Type: Application
    Filed: September 8, 2023
    Publication date: March 13, 2025
    Applicant: GM Cruise Holdings LLC
    Inventors: Yingchang Yang, Jaimin Patel, Jason Seitz, Isaac Brown, Thomas Ray Shelburne, Devin Cass
  • Patent number: 12249944
    Abstract: Apparatus and techniques for analyzing a capacitance value in an electric motor inverter are disclosed. A processor is coupled to a DC-AC inverter, which includes a capacitor across its terminals and is powered by a battery. The processor performs resistor switching to enable singular, periodic measurement of the capacitance. The measured value is compared with a nominal or beginning of life (BOL) value. An alert may be sent if the capacitance has degraded beyond a threshold. In other aspects, the DC torque ripple envelop is used to measure capacitance. The outcome is compared with the other tests to assess consistency. An inconsistent outcome may identify potential resistor degradation.
    Type: Grant
    Filed: November 18, 2022
    Date of Patent: March 11, 2025
    Assignee: GM Global Technology Operations LLC
    Inventors: Muhammad H. Alvi, Khorshed Mohammed Alam, Jiyu Zhang, Chunhao J. Lee, Brian A. Welchko
  • Patent number: 12249122
    Abstract: A system comprises a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to receive, at a deep neural network, an image captured by an image capture device. The processor is also programmed to generate a predicted distortion map based on the image and update at least one weight of the deep neural network based on a loss function of the deep neural network.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Manoj Sharma, Thomas A. Seder, Kai-Han Chang
  • Patent number: 12249309
    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: Grant
    Filed: July 26, 2022
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Song He, Arianna T. Morales, Anil K. Sachdev, Pavan Kumar Patruni, Hung-yih Isaac Du
  • Patent number: 12248228
    Abstract: A system for directing projections within a vehicle includes a projector for producing a projected image. The system also includes a projection directing module in optical communication with the projector for directing the projected image to a predetermined location. The system also includes a projection surface upon which the projected image is projected. The system also includes a controller in electrical communication with the projector and the projection directing module. The controller is programmed to configure the projection directing module to direct the projected image to a projection region of the projection surface. The controller is further programmed to project the projected image on the projection region using the projector and the projection directing module.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Manoj Sharma, Thomas A. Seder, Joseph F. Szczerba, John P. Weiss
  • Patent number: 12247512
    Abstract: An anti-lag controlled ignition system includes an engine system including a turbocharger and an exhaust manifold fluidly coupled to the turbocharger. An electronic control unit (ECU) is communicatively coupled with the engine system and is configured to receive engine data from the engine system. A virtual optimization system is communicatively coupled with the ECU, and the virtual optimization system is configured to generate calibration tables in response to the engine data from the ECU. The ECU is configured to receive the generated calibration tables and is configured to reduce turbocharger lag via enthalpy calibrations for the exhaust manifold using one or more of the calibration tables.
    Type: Grant
    Filed: November 10, 2023
    Date of Patent: March 11, 2025
    Assignee: GM Global Technology Operations LLC
    Inventors: Jacob C. Hedrick, Michael D. Locascio
  • Patent number: 12246615
    Abstract: A battery system for an electric vehicle includes at least one battery cell configured to store charge for powering an electric vehicle, a high voltage bus electrically coupled with the at least one battery, a DC-DC converter electrically coupled with the battery cell, a low voltage bus electrically connected between the DC-DC converter and at least one vehicle electrical component, and a cell monitor electrically coupled with the at least one battery cell and the DC-DC converter, wherein the cell monitor includes a current sensor configured to detect a current from the at least one battery cell to the DC-DC converter. The cell monitor includes a controller configured to estimate a state of charge of the at least one battery cell according to the current detected by the current sensor, and adjust switching operation of the DC-DC converter according to the current detected by the current sensor.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mohamed Ahmed Kamel Ahmed, Chandra S. Namuduri, Suresh Gopalakrishnan
  • Patent number: 12249854
    Abstract: A battery system includes: a first positive terminal, a second positive terminal, and a negative terminal; at least two battery modules, each including switches and at least three strings of battery cells configured to, via the switches, at different times be: connected in series and to the first positive terminal; connected in parallel and to the second positive terminal; and disconnected from both of the first and second positive terminals; and a switch control module configured to, when a fault is diagnosed in one of the strings of one of the battery modules: at least one of: actuate the switches and isolate the one of the battery modules from the first and second positive terminals; and actuate the switches and isolate the one of the strings from the first and second positive terminals; and selectively actuate the switches of the remainder of the battery modules using model predictive control.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jun-mo Kang, Chen-Fang Chang, Dave G. Rich
  • Patent number: 12247857
    Abstract: The invention provides a flow measurement apparatus which comprise a meter body comprising a through bore and a fluid flow path. The apparatus also comprises at least one pressure port configured to be in fluid communication with the fluid flow path, a flow displacement member and a mounting member. The flow displacement member and/or the mounting member are configured to be removably mountable within the through bore.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 11, 2025
    Assignee: GM Flow Measurement Services Limited
    Inventors: Gavin Munro, Victor Gawski
  • Patent number: 12246668
    Abstract: A method for controlling an inflatable airbag system in a motor vehicle having a seatbelt includes detecting a position of a vehicle occupant relative to an airbag suppression zone (ASZ). Electronic input signals are received from a sensor suite, including an occupant position signal and a seatbelt usage status signal. A restraint capacity setting of the airbag is adjusted in response to the electronic input signals such that corresponding restraint activation logic is executed by the controller based on whether the occupant is belted or unbelted. Different ASZs may be used for belted and unbelted occupants. A motor vehicle includes a vehicle body defining a vehicle interior, an airbag, a seatbelt, a sensor suite for detecting a position of an occupant relative to the ASZ, and a controller operable for controlling a restraint capacity setting and location of the ASZ in accordance with the method.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: March 11, 2025
    Assignee: GM Global Technology Operations LLC
    Inventors: Scott D. Thomas, Lisa M. Furton, Dorel M. Sala, George D. Allen, Sean T. Coughlin
  • Patent number: D1066158
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Tyler L. H. Moffett
  • Patent number: D1066159
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Hongjun Xu
  • Patent number: D1066175
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Louis D. Thole, Gary W. Ruiz, Jingxu Zhan, Raphael M. Molina
  • Patent number: D1066189
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Louis D. Thole, Gary W. Ruiz, Jingxu Zhan, Raphael M. Molina
  • Patent number: D1066191
    Type: Grant
    Filed: August 14, 2023
    Date of Patent: March 11, 2025
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eduardo Okamoto, Maxwell A. Sullivan