Patents Assigned to GM
  • Patent number: 11913791
    Abstract: Systems and methods are disclosed for detecting crosswalk locations. Crosswalk locations can be detected by determining at least two painted lines on a road surface, and then combining the at least two painted lines on the road surface into a grouping of related elements. The grouping of related elements can be classified into a crosswalk (or in some embodiments a type of crosswalk) based on attributes of the grouping of related elements, where the attributes of the grouping of the elements includes a distance between the at least two painted lines, and an orientation of the grouping of related elements on the road surface.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: February 27, 2024
    Assignee: GM Cruise Holdings LLC
    Inventors: Harman Kumar, Juan Fasola, Yu-Cheng Lin
  • Patent number: 11916436
    Abstract: An electric machine includes a housing, a rotor rotatably mounted to the housing, and a stator mounted to the housing about the rotor. The stator includes a stator body formed from a plurality of laminations. The plurality of laminations include an outer annular surface defining a radius, an inner annular surface spaced from the rotor, and a plurality of radially inwardly extending stator teeth spaced one from another by plurality of gaps. Each of the plurality of gaps extend along the radius and include an opening exposed at the inner annular surface. The opening has a first side portion and a second side portion each extending at an angle relative to the radius.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alireza Fatemi, Mohammad F. Momen, Thomas W. Nehl
  • Patent number: 11912080
    Abstract: A hitch system for automatically coupling a hitch accessory that has an attachment bar assembly with a hitch receiver. The attachment bar assembly includes a housing bar that is tubular, with a pin-hole through the housing bar. A pin-lever is pivotably mounted in the housing bar and includes a pin configured to retract into the housing bar and to extend out of the pin-hole. A ramp-component is disposed in the housing bar and is engageable with the pin-lever. An actuator selectively moves the ramp-component to retract the pin into the housing bar and to extend the pin out of the housing bar, by selectively enabling pivoting of the pin-lever.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Amanda Kalhous, Norman J Weigert, Radu D. Sotir
  • Patent number: 11915427
    Abstract: An autonomous vehicle is described herein. The autonomous vehicle generates segmentation scenes based upon lidar data generated by a lidar sensor system of the autonomous vehicle. The lidar data includes points indicative of positions of objects in a driving environment of the autonomous vehicle. The segmentation scenes comprise regions that are indicative of the objects in the driving environment. The autonomous vehicle generates scores for each segmentation scene based upon characteristics of each segmentation scenes and selects a segmentation scene based upon the scores. The autonomous vehicle then operates based upon the segmentation scene.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrea Allais, Micah Christopher Chambers
  • Patent number: 11912546
    Abstract: An inflatable structure includes a top end cap, a bottom end cap, a bladder attached to the top and bottom end caps and configured to hold pressurized air, a plurality of tethers disposed within the bladder, the inflatable structure moveable between a stowed profile and a final support profile, wherein the bladder is pressurized and expanded axially and the plurality of tethers are fully extended and restrict further movement of the top end cap and the bottom end cap away from one another and limit axial expansion of the bladder, a pulley assembly mounted within the bottom end cap, wherein in the stowed support profile, the plurality of tethers are wound onto the pulley assembly, the pulley assembly adapted to allow selective extension of the tethers allowing axial expansion of the bladder, wherein, the inflatable structure is adapted to provide multiple intermediary support profiles capable of supporting compressive loading.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wonhee Michael Kim, Paul W. Alexander, Yun Ju Kim, Diann Brei, Koray Benli, Jonathan E. Luntz, Laura Alejandra Giner Munoz
  • Patent number: 11914382
    Abstract: A computing system that analyzes the network effects of avoidance areas on autonomous vehicle routing is described herein. The computing system includes a data store that comprises a set of avoidance areas through which the autonomous vehicle is prohibited from being routed. A grouping system identifies groups of avoidance areas. A graph construction system constructs a graph representation of the avoidance area groups. A ranking algorithm is evaluated over the graph representation to generate a ranking of the avoidance area groups by relative impact on routing metrics for routes through an operational area of the autonomous vehicle. A mapping vehicle can be dispatched to resolve avoidance areas in avoidance area groups indicating in the ranking as having a greater impact on routing metrics than other avoidance area groups.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: February 27, 2024
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Alexander John Bowe, Lucio Otavio Marchioro Rech
  • Patent number: 11914120
    Abstract: A windshield corrective optical system includes a motor vehicle having a windshield. A camera is positioned within an occupant compartment of the motor vehicle directed toward the windshield and receiving light rays passing through the windshield. A sensor is configured to receive the light rays. A corrective element is configured to allow passage of the light rays through the corrective element to the sensor. The corrective element corrects aberrations of the light rays induced by passing through the windshield prior to the light rays reaching the sensor.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Tzvi Philipp, Brian Yousif-Dickow
  • Patent number: 11913401
    Abstract: An engine consumes fuel and air to generate an exhaust gas stream. An exhaust system channels the exhaust gas stream from the engine to a tailpipe. An aftertreatment system is included in the exhaust system and includes a catalyst. An exhaust throttle valve is disposed in the exhaust system downstream from the aftertreatment system. An actuator controls an amount of air pumped through the engine. A controller operates the exhaust throttle valve and/or the actuator to control emissions from the exhaust system during a cold start and following a deceleration fuel cutoff event.
    Type: Grant
    Filed: May 1, 2023
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chengke Liu, Vijay A Ramappan, Rafat F Hattar, Jeffrey M Kaiser, Joseph Shelton
  • Patent number: 11913085
    Abstract: A method for preparing a press-hardened steel component is provided. The method includes forming a heated blank by heating a steel alloy blank to a first temperature in a first zone of a furnace having two or more zones, and after the heating of the steel alloy blank to the first temperature, heating the steel alloy blank to a second temperature in a second zone of the furnace. The second temperature is greater than the first temperature. The first zone has a first flow rate for a protective gas, and the second zone has a second flow rate for the protective gas that is greater than the first flow rate. The method further includes stamping and quenching the heated blank at a constant rate to a temperature between a martensite finish temperature of the steel alloy defining the steel alloy blank and room temperature to form the press-hardened steel component.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: February 27, 2024
    Assignees: GM Global Technology Operations LLC, Northeastern University
    Inventors: Zhisong Chai, Tingdong Ren, Jinlong Zhu, Wei Xu, Jianfeng Wang
  • Patent number: 11912209
    Abstract: A removable panel retainer includes a flexible substrate having a surface defining a first axis. A clip member is moveably mounted to the flexible substrate in a direction substantially parallel to the first axis. A release member is moveably mounted relative to the flexible substrate along a second axis that is distinct from the first axis. Shifting the release member towards the flexible substrate releases the clip member to shift along the first axis.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jason Zink, Mark A. Ruttle
  • Patent number: 11916201
    Abstract: The present disclosure pertains to motion-generating particles for desulfation of lead-acid batteries, lead-acid batteries including such motion-generating particles, and methods of making and using the same. For example, the present disclosure provides a lead-acid battery including one or more electroactive plates disposed within a casing; an electrolyte disposed within the casing and surrounding the electroactive plates; a plurality of ferromagnetic particles disposed with the electrolyte within the casing; and one or more electromagnets. The one or more electromagnets may be configured to direct a magnetic field towards the electrolyte to selectively cause movement of the plurality of ferromagnetic particles so as to agitate the electrolyte.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dorel M. Sala, Mahmoud Abd Elhamid, Dave G. Rich
  • Patent number: 11912311
    Abstract: A system and method of detecting and mitigating an erratic vehicle by a host vehicle. The method includes gathering sensor information on a calibratable external region surrounding the host vehicle; analyzing the sensor information to detect a target vehicle traveling in a lane and a movement of the target vehicle in the lane; determining whether the movement of the target vehicle in the lane is erratic; if erratic then designating target vehicle as erratic vehicle; assigning a risk score to the erratic vehicle; and implementing a predetermined mitigating action correlating to the assigned risk score to the erratic vehicle. The mitigating action includes one or more of: warning an operator of the host vehicle, warning a vehicle proximal to the host vehicle, and taking at least partial control of the host vehicle to further distance the host vehicle apart from the erratic vehicle.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gabriel Tayoung Choi, Paul A. Adam, Namal P. Kumara, Christopher Michael Churay
  • Patent number: 11914367
    Abstract: Sun-aware routing and controls of an autonomous vehicle is described herein. A location and an orientation of a sensor system is identified within an environment of the autonomous vehicle to determine whether the sun causes a threshold level of perception degradation to the sensor system incident to generating a sensor signal indicative of a traffic light. The determination is based upon perception degradation data that can be precomputed for locations and orientations within the environment for dates and times of day. The perception degradation data is based upon the location of at least one traffic light and positions of the sun relative to the locations and the orientations within the environment. A mechanical system of the autonomous vehicle is controlled to execute a maneuver that reduces perception degradation to the sensor system when the perception degradation is determined to exceed the threshold level of perception degradation.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Clement Creusot
  • Patent number: 11912346
    Abstract: A vehicle includes a chassis, a passenger compartment supported by the chassis, and a box supported by the chassis spaced from the passenger compartment. The box including a lower bed fixedly mounted to the chassis, an upper bed, and a tail gate pivotally connected to the upper bed. Each of the upper bed, and the tail gate is shiftable relative to the lower bed.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anthony Bernal, Orlando Espana
  • Patent number: 11916414
    Abstract: A protection system for a battery system includes a battery control module configured to selectively open at least one contactor to isolate the battery system from a load in response to a sensed current being greater than a first threshold and within a first current range, at least one fuse connected between first and second terminals of the battery system and configured to open to isolate the battery system from the load in response to the sensed current being greater than a second threshold and within a second current range that is greater than and offset from the first current range, and an auxiliary protection module configured to selectively form a short circuit between first and second terminals in response to the sensed current being greater than the first threshold, less than the second threshold, and within a coverage gap region between the first and second current ranges.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Suresh Gopalakrishnan, Mark Daniel Gottlieb, Madhusudan Raghavan, Chandra S. Namuduri
  • Patent number: 11916251
    Abstract: A multi-cell rechargeable energy storage system (RESS) includes a plurality of battery cells organized into battery modules and a first enclosure configured to house the battery modules. The RESS also includes a first vent arranged on the first enclosure and configured to direct air from inside the first enclosure to an environment external to the first enclosure. The RESS additionally includes a second vent arranged on the first enclosure and configured to direct air into the first enclosure from the environment external to the first enclosure. The RESS further includes a phase-change material (PCM) device arranged on the second vent and configured to melt in response to at least one of the battery modules experiencing a thermal runaway event. In combination with the first vent, the PCM generates crossflow ventilation through the first enclosure to cool the battery modules therein and mitigate thermal runaway.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: February 27, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Benjamin G. Wroblewski, Jordan Mullins, Brian Carrier
  • Patent number: 11912273
    Abstract: Various technologies described herein pertain to controlling an autonomous vehicle to provide indicators to distinguish the autonomous vehicle from other autonomous vehicles in a fleet. The autonomous vehicle includes a vehicle propulsion system, a braking system, a notification system, and a computing system. The notification system outputs an indicator that is perceivable external to the autonomous vehicle. The computing system receives data specifying an identity of a passenger to be picked up by the autonomous vehicle. Moreover, the computing system controls at least one of the vehicle propulsion system or the braking system to stop the autonomous vehicle for passenger pickup. Further, the computing system controls the notification system to output the indicator; a characteristic of the indicator outputted by the notification system is controlled based on the identity of the passenger to be picked up and whether the autonomous vehicle is stopped for passenger pickup.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stephanie Olivia Engle, Kyle Vogt, Eric Lujan
  • Patent number: 11916446
    Abstract: A rotor for an electric machine includes a rotor assembly having an outer surface and including a plurality of poles with permanent magnets. A solid layer is formed on the outer surface of the rotor assembly and has an outer surface with a first coefficient of friction that is lower than a second coefficient of friction of the outer surface of the rotor assembly. The rotor includes an outer sleeve. The rotor assembly is press-fit into the outer sleeve.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anthony Michael Coppola, Alireza Fatemi, Derek Frei Lahr, Kestutis A. Sonta, Alan G. Holmes
  • Patent number: 11912330
    Abstract: A modular steering wheel assembly includes a central hub having a center support, a first support element extending outwardly from the center support in a first direction and a second support element extending outwardly from the center support in a second direction. The first support element includes a first connector member and a second connector member, and the second support element includes a first connector element and a second connector element. A first steering wheel member is detachably connected to at least one of the first connector member and the second connector member, and a second steering wheel member is detachably connected to at least one of the first connector element and the second connector element.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Dong Yeon Yoo
  • Patent number: 11912184
    Abstract: A vehicle seat including a seatback, and headrest including a shell member. A release mechanism is mounted to the shell member. The release mechanism selectively locks the headrest relative to the seatback. An actuator system extends between the seatback and the headrest. The actuator system includes a sleeve having a first end fixedly connected relative to the seatback, a second end fixedly connected relative to the headrest shell, and an intermediate portion defining a longitudinal length of the sleeve, and a cable extending through the sleeve. The cable has a first end section arranged in the seatback and a second end section coupled to the release mechanism. The longitudinal length of the sleeve includes a first dimension when the seatback is in an upright position and the longitudinal length has a second, longer dimension, when the seatback is in a folded configuration.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: February 27, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Edeena Alicia Reader