Patents Assigned to GM Global Technology Operations
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Patent number: 12321499Abstract: A system includes a vehicle external to a back office portal. The back office portal is operational to generate a signed update mode record. The vehicle has multiple devices and a component. The component is in communication with the devices, and operational to receive the signed update mode record, verify that the signed update mode record is from the back office portal and was created for the component, erase credentials within the component that establish the component as valid to the plurality of devices in response to the verification of the signed update mode record, perform an irreversible action within the component, enter a software update mode, exit the software update mode, and reject each request from the plurality of devices to the component that relies on the credentials that were erased from the component.Type: GrantFiled: May 30, 2023Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: Karl B. Leboeuf, Brian Farrell, Thomas M. Forest
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Patent number: 12319112Abstract: A vehicle includes a vehicle body arranged along a first axis and first and second road wheels, each mounted on a second axis perpendicular to the first axis. The vehicle also includes a stabilizer bar mounted to the vehicle body. The vehicle additionally includes respective first and second telescoping multiple-section links connecting the stabilizer bar to corresponding first and second road wheels. Each of the first and the second telescoping multiple-section links is configured to selectively operate in a first mode and a second mode. In the first mode, telescoping of each of the first and the second multiple-section links is locked to operatively connect the first road wheel to the second road wheel via the stabilizer bar. In the second mode, the telescoping of each of the first and the second multiple-section links is unlocked to operatively disconnect the first and second road wheels from the stabilizer bar.Type: GrantFiled: April 26, 2024Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: Robert P. Marble, Brian K. Saylor
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Patent number: 12322989Abstract: A battery pack for a direct current (DC) voltage bus includes a battery disconnect unit (BDU) operable for controlling a connection state of the battery pack with respect to the DC voltage bus, first and second battery sections, and six transfer conductors, e.g., busbars or cables/wires. The first battery section has first and second battery modules with corresponding battery cells. The first and second battery modules are connected in series. The first and second battery sections are connected in parallel. The second battery section has third and fourth battery modules each with additional battery cells, with the third and fourth battery modules connected in series. The six transfer conductors collectively interconnect the battery modules, sections, and BDU. A total battery current is divided equally between the battery sections, with the transfer conductors being rated for half of the total battery current.Type: GrantFiled: April 11, 2022Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: Jacob H. Friedrich, Robert J. Heydel, Jr., Luke R. Barton
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Patent number: 12322230Abstract: A method of controlling a reservation at a charging station for a vehicle includes a controller in communication with a remote advisory unit. The method includes positioning a ground lock at the charging slot, the ground lock being controllable through a station command unit. The method includes generating an identification number through the remote advisory unit and transmitting the identification number to the controller and the station command unit. The identification number is randomly generated. The ground lock is moved to a blocking position when an estimated time of arrival of the vehicle is less than a first threshold. The method includes broadcasting a message to the station command unit with the identification number, via the controller, when the estimated time of arrival is less than a second threshold. The ground lock is moved to a non-blocking position when an authentication process is completed.Type: GrantFiled: October 4, 2023Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: An Xu, Huan Lu, Feiyu Cong, Jieping Wang, Lingjin Zhuang, Xuekai Zhuang
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Patent number: 12322779Abstract: Presented are thermal management systems using coolant flow distribution plates for immersion cooling of battery cells, methods for making/using such systems, and vehicles equipped with such systems for cooling the vehicles' battery packs. A battery assembly includes multiple battery cells arranged in adjacent, mutually parallel cell rows. The battery cells are stored inside a protective battery housing that includes inlet and outlet fluid ports for receiving and evacuating therethrough dielectric coolant fluid. A pair of (first and second) separator plates is located between each neighboring pair of cell rows. Each plate includes coolant channels that are arranged in mutually parallel channel bands. The separator plates are in face-to-face contact with each other such that each channel band of the first separator plate is aligned with a respective channel band of the second plate so the coolant channels cooperatively distribute coolant fluid onto and vertically upward between the battery cells.Type: GrantFiled: December 7, 2022Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: William Yu Chen, Chih-hung Yen, Stephane Watts, Frederic Albergucci
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Patent number: 12322229Abstract: A system and method for estimation method for determining a location of a vehicle digital key wallet includes selecting, by a user, whether to store a digital key wallet in a cloud storage or within a secure telematics unit contained within a vehicle. The digital key wallet is used to initiate an event within the vehicle. A backoffice server stores data including a radio intelligence database and a rule-based vehicle pattern matrix. The digital key wallet is switched to a fallback device based on the status of a communication link with the secure telematics unit, the radio intelligence database, and the rule-based vehicle pattern matrix.Type: GrantFiled: June 13, 2023Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: Venkata Naga Siva Vikas Vemuri, John Sergakis, Daniel E. Nicholson
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Patent number: 12319151Abstract: Presented are smart vehicle systems and control logic for battery thermal event detection and severity assessment, methods for making/using such systems, and vehicles equipped with such systems. A method of operating a vehicle includes a resident or remote vehicle controller detecting a thermal event in at least one battery cell in the vehicle's battery system and, upon detection, monitoring the vehicle's surrounding area to detect target objects near the vehicle. Responsive to detecting any target objects near the vehicle, the controller aggregates target object data, including a total number of detected target objects and respective proximities of the detected target objects to the vehicle. Using this target object data, a situational severity level is estimated for the thermal event; the controller determines if the severity level exceeds a maximum allowable severity level. If so, the controller responsively commands a vehicle subsystem to execute a control operation to mitigate the event.Type: GrantFiled: June 14, 2022Date of Patent: June 3, 2025Assignee: GM Global Technology Operations LLCInventors: Matthew E. Gilbert-Eyres, Russell A. Patenaude, Eric T. Hosey, Matthew Neely
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Publication number: 20250172164Abstract: A compression limiter of a first part includes a body defining an aperture, a pair of fingers extending from the body into the aperture to a distal end configured to engage with a thread of a bolt of a second part, the first part and the second part being configured to be secured to one another via the bolt passing through the aperture, and a pair of slots on either side of the pair of fingers configured to allow the pair of fingers to flex in response to a force exerted upon the pair of fingers.Type: ApplicationFiled: November 29, 2023Publication date: May 29, 2025Applicant: GM Global Technology Operations LLCInventor: Kevin Updike
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Patent number: 12315891Abstract: A method for constant pressure regulation of battery cells includes disposing the cells in a stacked arrangement within a battery cell placement volume of an apparatus configured to maintain a constant pressure on the cells, providing a gas pressure within a chamber of the apparatus, thereby causing an initial pressure to be applied on the battery cells, and detecting an expansion of the battery cells during a predetermined timespan using a linear displacement sensor. During the predetermined timespan, if the detected expansion is less than a maximum allowable expansion minus a predetermined measurement error, then the gas pressure within the chamber is increased, and if the detected expansion is greater than the maximum allowable expansion plus the predetermined measurement error, then the gas pressure within the chamber is decreased. An apparatus for constant pressure regulation of battery cells is also provided.Type: GrantFiled: March 16, 2022Date of Patent: May 27, 2025Assignee: GM Global Technology Operations LLCInventors: Herman K. Phlegm, Srikanth Arisetty, Rajesh K. Bhagirath, Edgar P. Calderon
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Patent number: 12315973Abstract: A system for fuel cell membrane edge protection includes a fuel cell including a fuel-cell membrane-subgasket assembly. The assembly includes an anode gas diffusion electrode and a cathode gas diffusion electrode configured for facilitating an electrochemical reaction. The reaction creates water as a by-product. The assembly further includes a proton exchange membrane disposed between the electrodes and a subgasket. The subgasket includes an interior aperture portion defined by a perimeter and is connected to the anode gas diffusion electrode and the membrane about the perimeter such that an area of overlap between the subgasket, the electrode, and the membrane exists around the perimeter. The assembly further includes a carbon paper layer spanning the interior aperture portion. The layer includes patterned wettability and is configured to move the water away from the area of overlap into a center portion of the layer.Type: GrantFiled: September 16, 2022Date of Patent: May 27, 2025Assignee: GM Global Technology Operations LLCInventor: Yeh-Hung Lai
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Patent number: 12313733Abstract: A method, system and vehicle that repetitively correct angle offsets in a synthetic aperture radar image of a vehicle while the vehicle is in motion by utilizing a radar system and a camera to determine accurate velocity of a measured object by matching angles of the object in the SAR image with angles of the object in the camera image, thereby reducing angle offsets of objects in the SAR image. The method includes obtaining an SAR image of another vehicle via a radar unit of the vehicle, obtaining a camera image of the other vehicle via a camera unit of the vehicle, determining an association between at least one object in the SAR image and a corresponding at least one object in the camera image, correcting a velocity estimation of the vehicle based on the determined association, and adjusting the SAR image based on the corrected velocity estimation.Type: GrantFiled: September 1, 2022Date of Patent: May 27, 2025Assignee: GM Global Technology Operations LLCInventors: Oded Bialer, Dan Levi
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Patent number: 12315977Abstract: Presented are shock-force mitigation systems for fuel cell stacks, methods for making/using such systems, and electric-drive vehicles equipped with such systems. A fuel cell system includes multiple electrochemical fuel cells that are stacked face-to-face along a stack axis to define a fuel cell stack. A push plate abuts each longitudinal end of the fuel cell stack; these push plates translate rectilinearly along the stack axis inside a fuel cell stack housing. An end plate is located in facing spaced relation to each push plate to define a plate pair at each end of the stack. An active or passive force-modifying device is interposed between the two plates in each plate pair; these devices modify stack forces experienced by the fuel cell stack. For an active shock-force mitigation system, each force-modifying device may include a bladder system, spring, and/or linear actuator; an electronic system controller controls activation of the bladders/actuators.Type: GrantFiled: November 1, 2021Date of Patent: May 27, 2025Assignee: GM Global Technology Operations LLCInventors: Yeh-Hung Lai, Jeffrey A. Rock, Balasubramanian Lakshmanan
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Patent number: 12316178Abstract: Aspects of a synchronous electric motor, including a synchronous interior permanent magnet or a synchronous reluctance motor, are disclosed. The outer edges of pockets and magnet pockets, including flux barriers, selectively include one or more notches at the front of the pockets. The use of these notches may redirect flow of the magnetic flux such that overall torque ripple may be reduced without significantly adversely affecting the average torque output of the motor. In some embodiments, various characteristics of the notches may be changed to achieve optimal performance including number, geometry, and location of the notches on select outer edges of the pockets. Another characteristic includes symmetry of the notches or asymmetry, whether in the radial and longitudinal directions of the rotor.Type: GrantFiled: November 16, 2022Date of Patent: May 27, 2025Assignee: GM Global Technology Operations LLCInventors: William R. Jensen, Mazharul Chowdhury, Jay Jihyun Kim
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Patent number: 12312107Abstract: A system for assisting a vehicle having a trailer includes a drone having at least one sensor adapted to collect sensor data. The drone is selectively attachable to the vehicle. A controller is in communication with the drone. The controller is adapted to selectively execute an assessment mode, an operational mode, and a delivery mode, the operational mode being executed after the assessment mode is completed. The drone is adapted to conduct a set of initial checks during the assessment mode, the drone being adapted to fly around the trailer and/or the vehicle during the assessment mode. The drone is attached to the vehicle during the operational mode. The delivery mode is executed upon arrival of the vehicle at a predefined destination, the drone being adapted to be in flight during the delivery mode.Type: GrantFiled: May 26, 2023Date of Patent: May 27, 2025Assignee: GM Global Technology Operations LLCInventors: Matthew E. Gilbert-Eyres, Adam L. Wright, Russell A. Patenaude, Eric T. Hosey
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Publication number: 20250164258Abstract: A vehicle system includes a vehicle processor for storing data including vehicle location and vehicle data. The vehicle system also includes a server communicatively coupled to the vehicle processor and configured to transfer energy from a vehicle battery to a transfer station based on the vehicle location and the vehicle data.Type: ApplicationFiled: November 21, 2023Publication date: May 22, 2025Applicant: GM Global Technology Operations LLCInventors: Ryan Patrick Hickey, Russell A. Patenaude, Matthew Edward Gilbert-Eyres
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Publication number: 20250164010Abstract: A system including a part including a top surface defining a top slot and a bottom surface defining a bottom slot, the top slot and the bottom slot each permitting access from opposite directions to a first central cavity passing through the entire part, and a compression limiter over-molded to the part, the compression limiter including an upper portion defining an upper slot that coincides with the top slot and a lower portion defining a lower slot that coincides with the bottom slot, the upper slot and the lower slot each permitting access from opposite directions to a second central cavity that coincides with the first central cavity.Type: ApplicationFiled: November 20, 2023Publication date: May 22, 2025Applicant: GM Global Technology Operations LLCInventor: Kevin Updike
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Publication number: 20250162424Abstract: A vehicle system for a vehicle includes a vehicle processor for storing vehicle data including vehicle location, vehicle event data, and vehicle mode. The vehicle system also includes a server communicatively coupled to the vehicle processor. The server is configured to determine if a transport mode has been selected based on one or more of the vehicle mode or the vehicle location. The server is also configured to determine if a current battery change is above a state-of-charge limitation based on the vehicle event data. Additionally, the server is configured to activate the transport mode if the current battery charge is below the state-of-charge limitation.Type: ApplicationFiled: November 21, 2023Publication date: May 22, 2025Applicant: GM Global Technology Operations LLCInventors: Ryan Patrick Hickey, Russell A. Patenaude, Matthew Edward Gilbert-Eyres
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Publication number: 20250162458Abstract: A vehicle system includes a vehicle processor for storing data including vehicle location and vehicle data. The vehicle system also includes a server communicatively coupled to the vehicle processor. The server is configured to determine when the vehicle is being stored based on vehicle location and vehicle data and activate a storage mode when it is determined that the vehicle is being stored.Type: ApplicationFiled: November 21, 2023Publication date: May 22, 2025Applicant: GM Global Technology Operations LLCInventors: Matthew Edward Gilbert-Eyres, Ryan Patrick Hickey, Russell A. Patenaude, Luke John Popiel
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Publication number: 20250158465Abstract: A radial flux electric motor includes a stator having a radially inner stator surface and stator windings arranged thereon. The motor also includes a rotor mounted inside the stator and configured to rotate relative thereto about an axis. The rotor has a rotor core constructed from a ferromagnetic material having relatively high magnetic permeability and defined by a rotor outer surface establishing an airgap between the rotor and the stator. The rotor also has a plurality of magnetic poles set in the rotor core and configured to generate magnetic flux. The rotor additionally has inserts constructed from a material having relatively low magnetic permeability in at least one geometric direction. Each insert is mechanically fixed to the rotor core to thereby control magnetic flux distribution and minimize flux leakage inside the rotor.Type: ApplicationFiled: November 15, 2023Publication date: May 15, 2025Applicant: GM Global Technology Operations LLCInventors: Alireza Fatemi, Eric C. Clough, Thomas W. Nehl, Wesley G. Zanardelli, David A. Smith
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Publication number: 20250153721Abstract: A propulsion arbitration system for a vehicle includes a vehicle processor configured to store vehicle data including vehicle event data and propulsion request data. The propulsion arbitration system also includes a vehicle processor configured to store vehicle data including vehicle event data and propulsion request data. The vehicle processor is also configured to determine a priority of a propulsion request based on one or more of vehicle event data and the propulsion request data. The vehicle processor is also configured to activate a propulsion request based on the determined priority of the propulsion request data.Type: ApplicationFiled: November 14, 2023Publication date: May 15, 2025Applicant: GM Global Technology Operations LLCInventors: Hafez Irshaid, Brian Kalinowski