Patents Assigned to GM
  • Patent number: 11646620
    Abstract: A rotor core for an electric machine of an automobile includes a core stack including a plurality of lamination plates, each lamination plate including a plurality of apertures formed therein, the apertures of each of the lamination plates axially aligned to define a plurality of magnet slots extending axially through the core stack, a plurality of magnets stacked axially within each of the plurality of magnet slots along a length of the core stack, at least one of the plurality of magnet slots including a cavity extending axially along the length of the core stack, and a wedge inserted within the cavity adapted to apply a lateral force onto the plurality of magnets within the at least one magnet slot to secure the plurality of magnets within the at least one magnet slot.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Derek F. Lahr, Farzad Samie, Edward L. Kaiser
  • Patent number: 11645789
    Abstract: The subject disclosure relates to techniques for providing augmented reality (AR) navigation guidance to users of an autonomous vehicle (AV) ride hailing service. In some aspects, a method of the disclosed technology includes steps for transmitting an autonomous vehicle (AV) ride request to an AV dispatch service, receiving a ride confirmation indicating that an AV has been dispatched to a rider associated with the mobile device, detecting arrival of the AV at a pick-up location associated with the rider, and initializing augment reality (AR) guidance on the mobile device, wherein the AR guidance is configured to provide the rider with navigation information to facilitate pick-up by the AV. Systems and computer-readable media are also provided.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: May 9, 2023
    Assignee: GM Cruise Holdings LLC.
    Inventors: Charles Matlack, Georgios Georgiou
  • Patent number: 11642819
    Abstract: A method of manufacturing a composite component according to various aspects of the present disclosure includes disposing a fiber preform in a mold. The fiber preform includes a first portion having a first edge and a second portion having a second edge. The first edge and the second edge cooperate to at least partially define a gap. One of the first portion or the second portion includes a first ferromagnetic material and the other of the first portion or the second portion includes a first magnetic or magnetizable component. The method further includes closing the gap by generating a magnetic field from the first magnetic or magnetizable component. The method further includes injecting a polymer precursor into the mold. The method further includes forming the composite component by solidifying the polymer precursor to form a polymer. The composite component includes the fiber preform and the polymer.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkateshwar R. Aitharaju, William R. Rodgers, Selina X. Zhao, Terrence Wathen
  • Patent number: 11644544
    Abstract: An architecture for a chip-scale optical phased array-based scanning frequency-modulated continuous wave (FMCW) Light-detection and ranging (LiDAR) device is described. The LiDAR device includes a laser, a transmit optical splitter, an optical circulator, photodetectors, and an optical phased array. The laser, the transmit optical splitter, the optical circulator, the photodetectors, and the optical phased array are arranged as a chip-scale package on a single semiconductor substrate. The laser generates a first light beam that is transmitted to the optical phased array aperture via the transmit optical splitter, the optical circulator, and the optical phased array. A fraction of the first light beam is transmitted to the photodetectors via the transmit optical splitter to serve as the optical local oscillator (LO), the aperture of the optical phased array captures a second light beam that is transmitted to the photodetectors via the optical phased array and the optical circulator.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: May 9, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Raymond Sarkissian, Keyvan Sayyah, Shuoqin Wang, Biqin Huang, Ivan Alvarado
  • Patent number: 11644838
    Abstract: The present technology is effective to cause at least one processor to determine, based upon attributes of a sidewalk section and a height of a portion of an autonomous vehicle, a potential location for pick-up or drop-off of a passenger by the autonomous vehicle and navigate the autonomous vehicle to the potential location for pick-up or drop-off.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: May 9, 2023
    Assignee: GM Cruise Holdings LLC.
    Inventors: Daniel Kan, Jessica Uelmen
  • Patent number: 11642940
    Abstract: Described herein is a system and method for detecting malodor within a cabin of an autonomous vehicle, wherein initiation of a remediation system and/or dispatch of the autonomous vehicle to a service hub for mitigating the malodor is based upon sensor signals that monitor the cabin of the autonomous vehicle. The remediation system can include devices such as an HVAC system or a window, which are operated to reduce the concentration of airborne molecules in the cabin of the autonomous vehicle when the concentration of airborne molecules exceeds an air quality threshold. A dispatch protocol may be initiated to dispatch the autonomous vehicle to a service hub when the malodor is associated with certain predefined incidents or when remediation fails to reduce the concentration of airborne molecules below the air quality threshold.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: May 9, 2023
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Michael Frank Schmidt, Samuel Harrison Glidden, Chase Brian Kaufman, Kyle Vogt
  • Patent number: 11645038
    Abstract: An augmented reality head up display system includes an audio microphone array, a driver position tracking device, and an augmented reality head up display. The augmented reality head up display system also includes a controller in electronic communication with the audio microphone array, the driver position tracking device, and the augmented reality head up display, where the controller is programmed to: receive audio data from the audio microphone array corresponding to audio detected by the audio microphone array, classify the audio data as corresponding to an audio event occurring in an environment surrounding the vehicle, and display a graphic corresponding to the audio event on the windscreen of the vehicle using the augmented reality head up display and input from the driver position tracking device.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jacob Alan Bond, Joseph F. Szczerba, Hannah Elizabeth Wagner, Kai-Han Chang, Thomas A. Seder
  • Patent number: 11642690
    Abstract: A paint application system for an object in a paint submersion operation. The paint application system includes at least one clamp configured to be coupled to the object, and an auxiliary vibration apparatus coupled to the at least one clamp. The auxiliary vibration apparatus is configured to introduce sympathetic vibrations into the object in the paint submersion operation.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Robert John Kempf
  • Patent number: 11645880
    Abstract: A controller processes data from one or more sensors of a subsystem of a vehicle. The processing includes smoothing the data and calculating a mean of the data. The controller identifies a transition point in the processed data where a moving average of the data is less than the mean by a predetermined amount indicating a trend. The controller selects a segment of the processed data subsequent to the transition point, detects the trend in the segment using regression, and extrapolates the detected trend to reach a predetermined fault threshold. The controller predicts a failure of the subsystem based on a slope of the extrapolated trend and provides an indication of the prediction based on the slope to schedule a service for the subsystem.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xinyu Du, Zhongyu Yang, Joshua J. Sanchez, Kevin M. Corr, Yilu Zhang, Mateusz M. Nowak
  • Patent number: 11644846
    Abstract: The subject disclosure relates to techniques for real-time lane validation. A process of the disclosed technologies can include steps for receiving a route from a remote computing system, the route indicating lanes on the route that an autonomous vehicle must traverse, traversing at least one lane of the lanes on the route, and sending sensor data to the remote computing system after traversing the at least one lane, the sensor data indicating whether the at least one lane is in accordance with a virtual lane of a virtual map, the virtual lane corresponding to the at least one lane.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: May 9, 2023
    Assignee: GM Cruise Holdings LLC.
    Inventors: Erin Antcliffe, Jeremy Allan, Robin Yang, Andrew Robinson, Lucio Otavio Marchioro Rech, Brian Joseph Donohue, Kavya Sambana
  • Patent number: 11646450
    Abstract: An electrolyte is provided. The electrolyte includes a solvent containing propylene carbonate (PC); a lithium salt dissolved in the solvent; a first additive dissolved in the solvent, the first additive being configured to stabilize an anode solid electrolyte interphase; a second additive dissolved in the solvent, the second additive being configured to stabilize at least one of an anode, a cathode, or the lithium salt; and a third additive dissolved in the solvent, the third additive being configured to stabilize at least one of an anode, a cathode, or the lithium salt. The first, second, and third additives are chemically distinct. Electrochemical cells including the electrolyte are also provided.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Li Yang, Umamaheswari Viswanathan, Mary E. Fortier
  • Patent number: 11644322
    Abstract: An autonomous vehicle (AV) described herein is configured to receive a pull over location specified by a passenger, and is further configured to refine the pull over location based upon one or more factors, where the factors include computer-readable content from a profile of the passenger, sensor data output by sensor systems of the AV, observed or predicted weather conditions, observed or predicted traffic, and/or observations recently generated by other AVs that belong to the same fleet as the AV.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: May 9, 2023
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Curt Harrington, Wei Lu, Devina Jain, Kunal Mehta, Nikola John Linn Noxon
  • Patent number: 11646611
    Abstract: A stator core assembly for an axial flux electric motor for an automobile includes a cylindrical outer case that defines a central axis, first and second disk shaped insulate frames axially spaced from one another and positioned within the outer case, each of the first and second insulate frames including a circular outer ring, a circular inner ring and a plurality of radial spokes extending between the outer ring and the inner ring and spaced circumferentially about the central axis, and a plurality of segmented core sections extending axially between the first and second insulate frames spaced circumferentially around and supported by the first and second insulate frames, wherein, a radial spoke is positioned between each adjacent pair of segmented core sections, and at least one radial spoke extends across each axial end of each one of the plurality of segmented core sections.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: May 9, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jian Yao, Chengwu Duan
  • Publication number: 20230136682
    Abstract: Methods and systems are provided for vehicle speed planning based on timing of traffic lights. In an exemplary embodiment, a disclosed system includes one or more sensors of a vehicle; a transceiver; and a processor. The one or more sensors are configured to obtain vehicle sensor data pertaining to operation of the vehicle. The transceiver is configured to obtain traffic light data with respect to a plurality of traffic lights along a path or roadway on which the vehicle is travelling. The processor is coupled to the one or more sensors and to the transceiver, and is configured to at least facilitate: determining a desired control of movement of the vehicle based on the vehicle sensor data, the traffic light data, and one or more optimization criteria pertaining to the vehicle; and taking a vehicle action based on the desired control of movement of the vehicle.
    Type: Application
    Filed: December 1, 2021
    Publication date: May 4, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Yuan Zhang
  • Publication number: 20230138745
    Abstract: A methodology is described for determining a time for responding to an initial encounter by a vehicle with a map error in a map segment, wherein the initial encounter is detected by a detector. A method includes identifying an error type associated with the map error, wherein the error type is one of a first error type and a second error type; determining at least one additional factor associated with the initial encounter; determining a response time for the map error based on the error type and the at least one additional factor; and initiating a mitigating action in response to the initial encounter within the response time, wherein the response time comprises an amount of time from the initial encounter with the map error to a time at which a mitigating action should be taken.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 4, 2023
    Applicant: GM Cruise Holdings LLC
    Inventors: Sarah M. Rizk, Yanni Cao
  • Publication number: 20230137111
    Abstract: A methodology for establishing a frequency for reviewing of a map segment, in which encounters by a vehicle with a map error in the map segment are detected using at least one detector, is described. A method includes determining a time to next encounter (TTNE) for the map segment, the TTNE comprising a time until a next encounter with the map segment is expected to occur for a targeted quartile; determining a recall rate for the at least one detector, wherein the recall rate comprises a percentage of total encounters with the map error that are accurately detected by the at least one detector; and establishing a review frequency for the map segment based on the TTNE and the recall rate. A review ticket requiring manual review of the map segment is scheduled to be issued in accordance with the established review frequency.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 4, 2023
    Applicant: GM Cruise Holdings LLC
    Inventors: Sarah M. Rizk, Yanni Cao
  • Publication number: 20230138029
    Abstract: 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: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Yeh-Hung Lai, Jeffrey A. Rock, Balasubramanian Lakshmanan
  • Publication number: 20230132658
    Abstract: A method for providing a driver alert including receiving a traffic signal phase state and a time remaining in the traffic signal phase state, determining a move forward time in response to the traffic signal phase state being red and the time remaining in the traffic signal phase state, displaying the move forward time to a driver, determining a driver attentiveness level, and generating a driver alert in response to the driver attentiveness level being below a threshold attentiveness level and the move forward time being less than a threshold time.
    Type: Application
    Filed: November 15, 2021
    Publication date: May 4, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mohammad Naserian, Feiyu Cong, Jie Zhu, Curtis L. Hay, Priya B. Abraham
  • Publication number: 20230138305
    Abstract: A method mitigates an unintended lateral motion (ULM) event of a motor vehicle having a powertrain system with multiple propulsion actuators. The method, which may be recorded on a computer readable storage medium and executed therefrom by a processor, includes identifying, via an electronic controller of the motor vehicle, a present dynamic operating region at an onset of the ULM event as a linear or non-linear operating region. Lateral motion includes lateral acceleration and/or lateral yaw of the motor vehicle. The method also includes determining whether the lateral motion exceeds calibrated lateral dynamic limits for the particular operating region, and executing a powertrain control action in different manners depending on whether the ULM event occurs in the non-linear or linear operating region. The powertrain control action includes changing a dynamic speed state of at least one of the propulsion actuators.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Richard A. Kulas, Douglas J. Moening, Abdoulaye T. Diallo, Jenna C. Pechauer, Aubrey W. Downs, JR.
  • Publication number: 20230139072
    Abstract: A map database stores data describing a set of connected roads each having one or more lanes, each having one or more lanes. The map database further stores data describing at an avoidance area comprising an area in the map database that an autonomous vehicle (AV) avoids traversing. A routability system determines at least one lane that can be accessed by the AV if the AV traverses the avoidance area, and generates a restored coverage area corresponding to the at least one lane. The restored coverage area corresponds to an area of restored coverage provided by the AV traversing the avoidance area. The routability system computes a score based on the restored coverage area, the score indicating an impact of restoring access by the AV to the avoidance area.
    Type: Application
    Filed: October 28, 2021
    Publication date: May 4, 2023
    Applicant: GM Cruise Holdings LLC
    Inventors: Patrick Tyler Haas, Sarah M. Rizk, Jaimin Liang-Yan Hsu, Joseph James Reid, Luke Pulaski