Patents Assigned to GM
  • 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: 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: 11703480
    Abstract: Systems and methods are provided for monitoring the structural integrity of a vehicle. In particular, systems and methods are provided for using transducers positioned at various location in and on a vehicle to measure parameters related vehicle structural health. In various implementations, the integrity of the vehicle frame and the integrity of the vehicle body are monitored using a multi-axis accelerometer and/or microphone. The use of transducers for monitoring can replace time-consuming and expensive manual inspections.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 18, 2023
    Assignee: GM Cruise Holdings LLC
    Inventors: Jeffrey Brandon, Amanda Lind
  • 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
  • Patent number: 11703873
    Abstract: Various technologies described herein pertain to generating an occupancy grid movie for utilization in motion planning for the autonomous vehicle. The occupancy grid movie can be generated for a given time and can include time-stepped occupancy grids for future times that are at predefined time intervals from the given time. The time-stepped occupancy grids include cells corresponding to regions in an environment surrounding the autonomous vehicle. Probabilities can be assigned to the cells specifying likelihoods that the regions corresponding to the cells are occupied at the future times. Moreover, cached query objects that respectively specify indices of cells of a grid occupied by a representation of an autonomous vehicle at corresponding orientations are described herein. An occupancy grid for the environment surrounding the autonomous vehicle can be queried to determine whether cells of the occupancy grid are occupied utilizing a cached query object from the cache query objects.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gabriel Warshauer-Baker, Kevin Chu
  • Patent number: 11702107
    Abstract: Methods and systems are provided for navigating a mobile platform in an environment. A processor obtains information about an object in the environment, obtains information about a first satellite, and estimates a probability indicator for a non-line of sight signal transmission between a current satellite location of the first satellite and a current location of the mobile platform using the information about the first satellite and the information about the object. The processor further determines a discrepancy indicator using a movement information of the mobile platform and a movement information of the first satellite such that a weighting indicator can be determined using the estimated probability indicator and the determined discrepancy indicator. The processor then assigns a weighting indicator to a satellite signal transmitted from the first satellite in order to provide a first weighted signal for navigating the mobile platform.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brent N. Bacchus, Rakesh Kumar
  • Patent number: 11701738
    Abstract: A laser welded assembly and method of making. The laser welded assembly includes a first work piece having a thickness (T1) defined between an external surface and a faying surface; a second work piece having a thickness (T2) defined between an external surface and a faying surface of the second work piece; a weld seam having a core fusion zone extending from the external surface of the first work piece through the faying interface and at least partially into the thickness (T2) of the second work piece; and a protruding fusion zone extending laterally from the core fusion zone adjacent to the external surface of the first work piece. The protruding fusion zone may be formed by post-heating or concurrently with the core fusion zone.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Nannan Chen, Joshua L. Solomon, Hui-Ping Wang, Zixuan Wan, Blair E. Carlson, Paulina G. Torres Guzman
  • 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: 11705781
    Abstract: A system and method of active endturn cooling of an electric motor of a vehicle is provided. The method comprises providing a motor having a coolant nozzle and a cam, and measuring speed, lateral acceleration, and road tilt angle of coolant due to road tilt. The method further comprises calculating coolant angle and coolant acceleration angle based on the road tilt angle and the lateral acceleration if the speed is greater than zero. The method further comprises comparing the coolant angle with a critical angle. The method further comprises calculating a first control angle and a first coolant distance based on the road tilt angle and the lateral acceleration of the vehicle if the acceleration angle is greater than the critical angle. The method further comprises determining a cam position based on the first control angle. The method further comprises moving the cam to the position to move the nozzle and compensate for the lateral acceleration such that coolant drops within a target area of the motor.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: July 18, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Insu Chang, SeungHwan Keum, Jun-mo Kang, Young J. Kim
  • Publication number: 20230219620
    Abstract: Methods and systems are provided for assisting a user with parking a vehicle in a parking space. In various embodiments a method includes: receiving, by a processor, user input indicating a position of a virtual line displayed on a display screen of the vehicle, wherein the virtual line is adjustable by a user; storing, by the processor and in a datastore, the position of the virtual line and a vehicle position associated with a parking space; and selectively displaying, by the processor, an appearance of the virtual line on the display screen when the vehicle is within a range of the vehicle position to assist a user in parking the vehicle in the parking space, wherein the selectively displaying is based on a comparison of a boundary within a scene associated with the parking space and the virtual line.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yun Qian Miao, Jason J. Parks, Norman J. Weigert, Mark T Gaylord
  • Publication number: 20230219545
    Abstract: Methods and systems are provided for a vehicle towing a trailer. In an embodiments, a method includes: storing, in a data storage device, target deceleration values associated with the vehicle not towing the trailer; when the vehicle towing the trailer is determined to be braking, determining, by a processor, that a target deceleration value of the target deceleration values is not met, adjusting a brake sensitivity value associated with trailer braking based on the target deceleration value; and controlling deceleration of the towing vehicle based on the brake sensitivity value.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Glenn Pietila, Steven Aiuto
  • Publication number: 20230219126
    Abstract: Systems and methods for bending a material to a target resultant bending parameter using a bend forming tool are disclosed. The systems and methods receive values for parameters of properties of the material and of a bending process to be performed by the bend forming tool, creating or retrieving a calibration curve relating input bending parameter and resultant bending parameter based on the values from a database of calibration curves, determining a first springback compensated input bending parameter based on the target resultant bending parameter using the calibration curve, inputting the first springback compensated input bending parameter to the bend forming tool, and in a first step of bending the material, bending the material to the first springback compensated input bending parameter by applying the bending process using the bend forming tool.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lu Huang, Hui-ping Wang, Bradley J. Blaski, Joshua Lee Solomon, Blair E Carlson
  • Publication number: 20230223630
    Abstract: Systems and methods for responding to in a battery. A battery cell for a battery system includes a core of a known battery type, and a cell film having an initial thickness, the cell film configured as a pouch enclosing the core. The battery cell has at least one engraved groove in the cell film, the at least one engraved groove characterized by a groove thickness that is less than the initial thickness. The groove thickness configured to break open responsive to a predetermined gas pressure or target temperature in the pouch.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xiaofeng Yang, Jian Gao, Scott E Parrish
  • Publication number: 20230221375
    Abstract: Systems and methods for diagnosing health of a battery using in-vehicle impedance analysis. The method includes receiving a sensed current measurement for a cell of the battery; generating a current profile as a function of the sensed current measurement, including pulses to a peak current, the pulses having a pulse frequency (w); applying a current with the current profile to the cell; for each pulse in the current profile, receiving a voltage measurement for the cell that is responsive to the pulse, calculating an impedance for the cell responsive thereto, the impedance comprising a real component at the pulse frequency (RZw), and an imaginary component at the pulse frequency (IZw), identifying a battery health problem when either RZw exceeds a preprogrammed first threshold for the pulse frequency, or when IZw exceeds a preprogrammed second threshold for the pulse frequency, and storing the RZw and the IZw for the cell.
    Type: Application
    Filed: January 13, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yue-Yun Wang, Steven Earl Muldoon, Lei Hao, Michael P. Barker
  • Publication number: 20230223552
    Abstract: A cathode configured for use within a fuel cell system is provided. The cathode includes a cathode substrate. The cathode further includes a coating disposed upon the cathode substrate and including a fluorocarbon polymer additive configured for sintering at a temperature of less than 200° C. The fluorocarbon polymer additive may be mixed with a catalyst ink coating or may be applied separately as a topcoat layer.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Nagappan Ramaswamy, Roland J. Koestner, Swaminatha P. Kumaraguru
  • Publication number: 20230221942
    Abstract: Vehicles and related systems and methods are provided for classifying detected objects in a location-dependent manner using localized models in a federated learning environment. A method involves obtaining sensor data for a detected object external to the vehicle from a sensor of a vehicle, obtaining location data associated with the detected object, obtaining a local classification model associated with an object type, assigning the object type to the detected object based on an output by the local classification model as a function of the sensor data and the location data using the local classification model, and initiating an action at the vehicle responsive to assigning the object type to the detected object.
    Type: Application
    Filed: January 10, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wende Zhang, Esther Anderson, Mark T Gaylord, Robert A Dziurda
  • Publication number: 20230223567
    Abstract: An apparatus for dilution of hydrogen concentration in a fuel cell exhaust system is provided. The apparatus includes a fuel cell exhaust line configured for receiving a flow of gas from a connected fuel cell and including a flow of hydrogen gas. The apparatus further includes a mixing chamber disposed to receive the flow of hydrogen gas and configured for mixing a flow of air with the flow of hydrogen gas. The mixing chamber includes a mixing mesh including at least one tab feature configured for altering a flow direction of at least a portion of one of the flow of hydrogen gas and for creating a turbulent flow region within the mixing chamber.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Saurabh Kumar Verma, Kenneth R. Dubois
  • Publication number: 20230221361
    Abstract: An apparatus and methods for testing a trailer light system including a trailer connector for coupling a first voltage to a first trailer light and a second voltage to a second trailer light, a transmission state detector for determining a vehicle transmission state, and a trailer interface module for detecting an electrical connection to a trailer at the trailer connection, and for applying the first voltage to the trailer connector and the second voltage to the trailer connector in response to the detection of the electrical connection and the vehicle transmission state being in a park state.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 13, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Harold Bruton Thibodeau, Ansaar Beg, Andreea Sofia Ungureanu
  • Patent number: D991845
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: July 11, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Hojun Choi, Hyunwoo Sim, Dongwan Jo