General Motors Patents Granted

Patents granted to General Motors by the U.S. Patent and Trademark Office (USPTO).

  • Patent number: 11962173
    Abstract: A system for use with a direct current fast-charging (DCFC) station includes a controller and battery system. The battery system includes first and second battery packs, and first, second, and third switches. The switches have ON/OFF conductive states commanded by the controller to connect the battery packs in a parallel-connected (P-connected) or series-connected (S-connected) configuration. An electric powertrain with one or more electric machines is powered via the battery system. First and second charge ports of the system are connectable to the station via a corresponding charging cable. The first charge port receives a low or high charging voltage from the station. The second charge port receives a low charging voltage. When the station can supply the high charging voltage to the first charge port, the controller establishes the S-connected configuration via the switches, and thereafter charges the battery system solely via the first charge port.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: April 16, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Yue-Yun Wang, Suresh Gopalakrishnan, Chandra S. Namuduri, Rashmi Prasad, Madhusudan Raghavan
  • Patent number: 11959536
    Abstract: A system for managing vehicle body and wheel motion control with a dual clutch differential includes sensors and actuators disposed on the vehicle, the sensors measuring real-time static and dynamic data and the actuators altering static and dynamic behavior of the motor vehicle. A control module executes program code portions stored in memory. The program code portions receive the real-time static and dynamic data; selectively prioritize torque output from a prime mover of the vehicle through the differential to driven wheels of the vehicle to control a body and the driven wheels; model and estimate clutch torque for each clutch of the dual clutch differential; model and estimate a joint clutch torque, a tire force, and corner torque; and generate a torque output for each clutch of the dual clutch differential that is selected to maintain one or more of body control, wheel control, and stability of the motor vehicle.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: April 16, 2024
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, University of Waterloo
    Inventors: Reza Hajiloo, Amir Khajepour, Seyedalireza Kasaiezadeh Mahabadi, Seyedeh Asal Nahidi, Bakhtiar B. Litkouhi, Ehsan Mohammadbagher
  • Patent number: 11956026
    Abstract: A power line communication (PLC) system for a vehicle is contemplated. The system may include a plurality of power lines configured to connect at least a first node and a second node to negative and positive terminals of a vehicle battery. The system may include a filter connected to the power lines. The filter may be configured to attract a first portion of a PLC signal to the negative terminal prior to the first portion reaching the second node and to permit a second portion of the PLC signal to continue transmission to the second node.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: April 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Igal Kotzer, Shlomo Malka, Ayelet Aharon
  • Patent number: 11951465
    Abstract: Catalyst systems that are resistant to high-temperature sintering and methods for preparing such catalyst systems that are resistant to sintering at high temperatures are provided. Methods of forming such catalyst systems include contacting a support having a surface including a catalyst particle with a solution comprising a metal salt and having an acidic pH. The metal salt is precipitated onto the surface of the support. Next, the metal salt is calcined to selectively generate a porous coating of metal oxide on the surface of the support distributed around the catalyst particle.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xingcheng Xiao, Gongshin Qi, Ryan J. Day, Ming Yang
  • Patent number: 11951051
    Abstract: A lifting system includes a top plate, a bottom plate and N pairs of hinged plates. The N pairs of hinged plates are connected by 2N pairs of hinges to N sides of the top plate and the bottom plate, where N is an integer greater than 2. A bladder is arranged between the top plate and the bottom plate and between inner edges of the N pairs of hinged plates.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wonhee M. Kim, Paul W. Alexander
  • Patent number: 11952007
    Abstract: Systems and methods are provided for detecting a blind spot of a vehicle. In one embodiment, a method includes: receiving, by a processor, head position data indicating a position of a head of a driver of the vehicle; determining, by the processor, pillar position data associated with at least one pillar of the vehicle; determining, by the processor, at least one angle based on the head position data and the pillar position data; determining, by the processor, at least one blind spot area based on the at least one angle; detecting, by the processor, at least one object within the at least one blind spot area; and generating at least one of notification data, decision data, and control data based on the at least one object.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Noah Sharkus, Prabhjot Kaur, Nicholas Constantine Sidiropoulos
  • Patent number: 11951964
    Abstract: Methods and systems are provided for a vehicle towing a trailer. In an exemplary embodiment, one or more sensors onboard a vehicle are configured to provide sensor data, and a processor onboard the vehicle is configured to at least facilitate: monitoring a trailer sway of the trailer using the sensor data, based on one or more parameters of the sensor data representing the trailer sway and application of a band-pass filter to the one or more parameters; and mitigating the trailer sway, via instructions provided by the processor to one or more braking systems of the vehicle, the trailer, or both, when it is determined that the trailer sway of the trailer is sufficient to warrant mitigation based on the one or more parameters of the sensor data representing the trailer sway and the application of the band-pass filter to the one or more parameters.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATION LLC
    Inventors: Halit Zengin, Joseph K Moore, Benjamin J Eles
  • Patent number: 11951538
    Abstract: Hollow automotive parts, methods for fabricating hollow automotive parts, and methods for fabricating hollow castings are provided. An exemplary method for fabricating a hollow casting includes casting at least a first casting section and a second casting section from a slurry using a semi-solid casting process, and welding the casting sections together at interfaces therebetween.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Adam G. Kotlarek, Frank D. Risko
  • Patent number: 11951522
    Abstract: A method of forming a shaped steel object is provided. The method includes cutting a blank from an alloy composition including 0.05-0.5 wt. % carbon, 4-12 wt. % manganese, 1-8 wt. % aluminum, 0-0.4 wt. % vanadium, and a remainder balance of iron. The method also includes heating the blank until the blank is austenitized to form a heated blank, transferring the heated blank to a press, forming the heating blank into a predetermined shape to form a stamped object, and decreasing the temperature of the stamped object to a temperature between a martensite start (Ms) temperature of the alloy composition and a martensite final (Mf) temperature of the alloy composition to form a shaped steel object comprising martensite and retained austenite.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jiachen Pang, Qi Lu, Jianfeng Wang
  • Patent number: 11955852
    Abstract: Presented are oleophilic surface treatments for electric machines, methods for making/using such electric machines, and vehicles employing traction motors having stator windings with oleophilic treatments on select surfaces. An electric machine includes an outer housing with a direct-cooling thermal management system fluidly connected to the housing to circulate thereto a coolant fluid. A stator assembly, which is attached to the housing, includes a stator core with one or more electromagnetic windings mounted to the stator core. A rotor assembly is movably mounted to the hosing adjacent the stator assembly. The rotor assembly includes a rotor core with one or more magnets mounted to the rotor core spaced, e.g., across an air gap, from the winding(s). Select components of the stator assembly have a target surface with an oleophilic surface treatment that enlarges the target surface's wetted area and increases a coolant mass of the coolant fluid contacting the target surface.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: SeungHwan Keum, Mei Yang, Neal Parsons, Ruth Herrera Reed
  • Patent number: 11952013
    Abstract: In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for determining a trusted context of operation by an in-vehicle Network Intrusion Detection System (NIDS) for learning of a vehicle platform, including executing the NIDS to monitor a set of Electronic Control Units (ECUs) and vehicle state elements by receiving a set of vehicle derived inputs about a vehicle's operating state; in response to a determination about the vehicle's operating state, identifying the trusted window during which learning about network topology and whitelisted messages contained in a vehicle platform is allowable; creating a vehicle-specific configuration containing a list of networks of topologies and whitelisted messages in use by the ECUs in the vehicle platform, and preventing misconfiguring of at least one network in the list of network topologies and whitelisted messages of the vehicle-specific configuration in the vehicle platform outside the trusted window.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mayssaa El Rifai, Samuel B. Kupfer, Joseph E. Ploucha, Ron C. Carleton
  • Patent number: 11951812
    Abstract: Methods and systems for controlling a sunshade of a vehicle. The methods and systems receive a route plan from a first location to a second location, predict a sun parameter indicative of sun glare on the window for the route plan based on solar direction and vehicle heading at distributed locations throughout the route plan, and activate the sunshade based on the sun parameter so as to shade the window.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Yunxiu Zhang
  • Patent number: 11952037
    Abstract: Systems, methods, and apparatus are provided for providing multi-trailer reverse assistance. In a multi-trailer reverse assistance system in an articulated transport system comprising a lead vehicle, an intermediate trailer, and a final trailer, the reverse assist system includes a controller. The controller is configured to: receive a view of an environment behind the final trailer; cause the view to be displayed in a display screen of a user interface device; receive, via a secondary steering device of the user interface device, a user intended direction of travel of the articulated transport system in reverse to direct the final trailer in a desired direction; continuously calculate controllable steering angles for directing the articulated transport system to direct the final trailer in the desired direction; and control the articulated transport system to direct the final trailer in the desired direction using the calculated controllable steering angles.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Avesta Goodarzi, Ralph David Schlottke, Manvir Dulai, Michael D. Alarcon, Halit Zengin
  • Patent number: 11951921
    Abstract: A hood bumper for a vehicle having a hood including: a housing having a wall, a base, an internal chamber, and an opening to the internal chamber. The wall having an interior surface and an exterior surface. the interior surface defines the internal chamber. The hood bumper further including a biasing mechanism operably connected to the housing and a plunger operably connected to the biasing mechanism and configured to receive an exerted force from the hood. The hood bumper further including a bumper head operably connected to the housing and a support frame operably connecting the bumper head to the housing. The plunger is configured to first move into the bumper head to absorb an impact force to the hood, next the bumper head compresses to further absorb the impact force, and then the support frame collapses to even further absorb the impact force.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Robert J. Kukla
  • Patent number: 11952639
    Abstract: A method for tempering steel for riveting includes positioning a first component having a first composition over a second component having a second composition, and resistance spot welding the first component to the second component using a resistance spot weld gun to form a spot weld. The method includes tempering at least one of the first component, the second component and the spot weld with the resistance spot weld gun, and coupling a third component having a third composition to the first component and the second component with a rivet, and the third composition is different than the first composition and the second composition.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Steven Cipriano, Pei-chung Wang, Zhenke Teng
  • Patent number: 11954205
    Abstract: A method for securing an electronic control unit (ECU). The method may include generating a granular security control adjustment authorization ticket (G-SCAAT) for securing the ECU according to a plurality of security parameters determined based on to a role selected for a corresponding user. The G-SCAAT may include security values to be used in controlling the ECU to operate according to the security parameters.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: April 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian Farrell, Joseph E. Ploucha
  • Patent number: 11951905
    Abstract: A display system for a vehicle includes a light source configured to emit a light and a fiber-optic cable coupled to the light source. The fiber-optic cable has a first fiber end and a second fiber end opposite the first fiber end. The first fiber end is coupled to the light source. The second fiber end is attached to a vehicle body of a vehicle. The display system includes a piezoelectric actuator coupled to the fiber-optic cable end adjacent to the second fiber end. The piezoelectric actuator is actuated to vibrate the second fiber end of the fiber-optic cable to project an image on the vehicle body adjacent the second fiber end while the light source is activated.
    Type: Grant
    Filed: July 24, 2023
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John P. Weiss, Manoj Sharma, Joseph F. Szczerba, Thomas A. Seder
  • Patent number: 11953089
    Abstract: A transmission system associated with a vehicle includes a shaft to rotate about an axis of rotation. The shaft is coupled to a gear set. The transmission system includes a target wheel to be coupled to the gear set and to rotate with the gear set. The target wheel includes at least one void. The transmission system includes a giant magnetoresistance (GMR) sensor spaced apart from the target wheel by a gap. The giant magnetoresistance (GMR) sensor is configured to observe the at least one void of the target wheel to determine a rotation speed of the shaft based on a giant magnetoresistance (GMR) effect. The transmission system further includes a rotating shell located in the gap between the target wheel and the giant magnetoresistance (GMR) sensor.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Angela M Hutcheon, Joel H Gunderson, Roman Shestakov
  • Patent number: 11951935
    Abstract: A system includes an in-cabin sensor, a seatbelt routing zone module, and a seatbelt routing classification module. The in-cabin sensor is operable to generate an image of an occupant in a vehicle seat. The seatbelt routing zone module is configured to generate a seatbelt routing zone based on at least one of a size of the occupant in the image and a shape of the occupant. The seatbelt routing classification module is configured to determine whether a seatbelt is routed properly around the occupant based on whether the seatbelt is at least partially within the seatbelt routing zone.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Scott D. Thomas, Dorel M. Sala, Joseph Philip McLaine
  • Patent number: 11955666
    Abstract: A battery system includes an enclosure having opposed first and second major walls, a perimetral wall connecting the first and second major walls along respective perimeters thereof, and an interior defined by the first and second major walls and the perimetral wall, wherein the enclosure is configured for containing an anode assembly, a cathode assembly and an electrolyte within the interior. A longitudinal embossment is formed in the perimetral wall extending outward from the interior and extending along opposed adjacent portions of the first and second perimeters. A wall port is defined in the perimetral wall in fluid communication with the interior, wherein the wall port is configured for permitting flow of the electrolyte therethrough into and out of the interior. First and second electrodes extend through the perimetral wall and are configured for electrical connection with the anode assembly and cathode assembly, respectively.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: April 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Ruchira Dharmasena, Meinan He, Mei Cai
  • Patent number: 11951981
    Abstract: Systems and methods of detecting and validating a turn light indicator in a vehicle include receiving optical perception data from an optical perception system. The optical perception data includes data describing a detected turn indicator light of another vehicle perceived by the optical perception system including a status of the detected turn indicator light. A turn indicator light signal is generated in the form of a time varying waveform based on the status of the detected turn indicator light. A duty cycle and frequency of the turn indicator light signal is obtained. An assessment is made whether the detected turn indicator light is a valid detection by comparing the duty cycle and frequency with predetermined bounds. When the detected turn indicator light is assessed to be a valid detection, then an automated feature of the vehicle is controlled based on the data describing the detected turn indicator light.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS
    Inventors: Daniel R Kraft, Taylor A. Jakubczak, Amanpal S Grewal, Darren Khan, Ben Llewellyn
  • Patent number: 11955010
    Abstract: A supervisory control system is disclosed that provides an operator situational awareness interface use with monitoring a plurality of automated vehicles (AVs). The system is configured to: generate a map of a geographical area of interest; obtain location data and perceived risk data for a plurality of AVs in the geographical area; generate a vehicle icon corresponding to each AV; position the vehicle icon for each AV on the map based on the location data for a corresponding AV; apply a color coding to each vehicle icon based on a perceived risk level for a corresponding AV; and signal a display device to display an AV fleet map graphic that includes the color coded vehicle icons positioned on the map. The controller may be further configured to: generate an AV servicing queue graphic that displays vehicle icons in an order based on a determined servicing priority.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lawrence A Bush, Roy J Mathieu, Joseph F Szczerba
  • Patent number: 11955639
    Abstract: A solid-state electrochemical cell that cycles lithium ions includes a solid-state electrolyte that defines a first major surface and an electrode that defines a second major surface. The solid-state electrochemical cell also includes an interfacial layer disposed between the first major surface of the solid-state electrolyte and the second major surface of the electrode. The interfacial layer may include an ion-conductor disposed in an organic matrix.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mengyuan Chen, Xingcheng Xiao
  • Patent number: 11955006
    Abstract: A vehicle includes a traffic light indication system (system) with one or more input devices for generating a status input signal associated with a status of a traffic light. The input devices further generate an overriding input signal associated with a hazardous driving condition. The system further includes a notification device for providing a traffic light notification to the user. The system further includes a computer having a processor and a non-transitory computer readable storage medium (CRM) storing instructions. The processor is programmed to generate an actuation signal based on the status input signal. The processor is further programmed to refrain from generating the actuation signal, in response to the processor determining the predicted collision based on the status input signal and the overriding input signal. The notification device provides the traffic light notification to the user, in response to the notification device receiving the actuation signal.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Vivek Vijaya Kumar, Mohammad Naserian, Dustin Howard Malcom Smith
  • Patent number: 11956046
    Abstract: An occupant detection system for an interior cabin area of a vehicle includes one or more signal conversion devices including conversion circuitry and a wireless control module including a multi-band transceiver having two or more transceivers. The wireless control module executes instructions to continuously send, by a first transceiver, signals on a first frequency band. The wireless control module executes instructions to receive, by a second transceiver, signals on a second frequency band from a signal conversion device. The wireless control module compares original training symbols from the signals on the first frequency band with training symbols from the signals on the second frequency band to determine a change in value of in one or more channel state information (CSI) parameters, and determines one or more occupants are present within the interior cabin area of the vehicle based on the change in one or more CSI parameters.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kamran Ali, Mohammad Naserian, Lakshmi V. Thanayankizil, Bhargavi Chandrakumar, Fan Bai
  • Patent number: 11953602
    Abstract: A computer-implemented method for detecting one or more three-dimensional structures in a proximity of a vehicle at runtime includes generating, by a processor, a birds-eye-view (BEV) camera image of the proximity of the vehicle, the BEV camera image comprising two-dimensional coordinates of one or more structures in the proximity. The method further includes generating, by the processor, a BEV height image of the proximity of the vehicle, the BEV height image providing height of the one or more structures in the proximity. The method further includes detecting one or more edges of the three-dimensional structures based on the BEV camera image and the BEV height image. The method further includes generating models of the three-dimensional structures by plane-fitting based on the edges of the one or more three-dimensional structures. The method further includes reconfiguring a navigation system receiver based on the models of the three-dimensional structures.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brent N. Bacchus, Rakesh Kumar, Keun Jae Kim
  • Patent number: 11954913
    Abstract: Methods and systems are provided that include obtaining first camera images of a parking location before a vehicle is parked at the parking location; obtaining second camera images of the parking location after the vehicle is parked at the parking location; and detecting, via a processor, a fluid leak for the vehicle based on a comparison of the first camera images and the second camera images.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hamed Kazemi, Hong Wong
  • Patent number: 11954916
    Abstract: An automated driving system includes an object detection system. A neural network image encoder generates image embeddings associated with an image including an object. A neural network text encoder generates concept embeddings associated with each of a plurality of concepts. Each of the plurality of concepts is associated with one of at least two object classes. A confidence score module generates a confidence score for each of the plurality of concepts based on the image embeddings and the concept embeddings associated with the concept. An object class prediction module generates a predicted object class of the object based on an association between a set of concepts of the plurality of concepts having at least two of the highest values of the generated confidence scores and the one of the at least two object classes associated with a majority of the set of concepts.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wei Tong, Siddhartha Gupta, Jacob Alan Bond, Zhuoning Yuan
  • Patent number: 11946542
    Abstract: A system and method for operating an electric vehicle. In another exemplary embodiment, a system for operating an electric vehicle is disclosed. The system includes a first motor and a transmission coupled to the first motor. The transmission is configured to shift gears when a speed of the electric vehicle crosses a shift threshold. The shift threshold is independent of a position of an acceleration pedal of the electrical vehicle.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: April 2, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dongxu Li, Chunhao J. Lee, Thomas Weglarz, Su-Yang Shieh, Paul Guillermo Otanez
  • Patent number: 11946432
    Abstract: A throttle body for an engine or fuel cell of a vehicle is provided. The throttle body comprises a cylindrical housing comprising a first open end extending to a second open end defining an inner wall having an inner surface. The throttle body further comprises a moveable blade valve movably disposed on the inner wall and arranged to regulate air to the engine during operation of the vehicle. The moveable blade valve has an outer surface. The throttle body further comprises a dual-phase thermal composite coating (TCC) disposed on one of the inner surface of the inner wall and outer surface of the moveable blade valve for enhanced thermal conductivity and reduced deposit accumulation on the inner surface and the outer surface. The dual-phase TCC comprises a first material comprising between 10 wt % and 90 wt %, and a second material comprising between 10 wt % and 90 wt % of the dual-phase TCC. The dual phase TCC has a contact angle of between 100° and 160° and a thermal conductivity of at least 0.3 W/mK.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: April 2, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Seongchan Pack, Dean G. Sorrell
  • Patent number: 11946515
    Abstract: A method for determining, in real-time, an electronic limited-slip differential (eLSD) clutch torque includes receiving vehicle data in real-time, wherein the vehicle data includes a torque request, determining a preliminary eLSD clutch torque using a neural network and the vehicle data, determining clutch torque bounds of the eLSD using a physics-based model, determining whether the preliminary eLSD clutch torque is outside the clutch torque bounds of the eLSD, adjusting the preliminary eLSD clutch torque using clutch torque bounds to determine a final clutch torque of the eLSD in response to determining that the preliminary eLSD clutch torque is outside the clutch torque bounds of the eLSD, and commanding, in real-time, the eLSD to apply the final clutch torque to a clutch of the eLSD.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: April 2, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Arash Hashemi, Sresht Gurumoorthi Annadevara, Naser Mehrabi, SeyedAlireza Kasaiezadeh Mahabadi, Lapo Frascati
  • Patent number: 11945082
    Abstract: Systems and methods are provided for locating a pair of components relative to one another using complex surfaces. One component has a complex surface, where the complex surface is smoothly contoured. Another component is shaped to be connected with the first component. A fixture locates the first component relative to the second component. The fixture includes a locator with a complex surface region shaped to mate with the complex surface of the one component to locate the fixture relative to that component. The fixture includes another locator to locate the fixture relative to the second component.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: April 2, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Richard J. Skurkis, Tyson W. Brown, Mark A. Smith, Miguel A. Saez, John P. Spicer
  • Patent number: 11947236
    Abstract: A display device include a first transparent layer, a second transparent layer and a spacer arranged between the first transparent layer and the second transparent layer to define a first region and a second region. A first plurality of electrodes are arranged on an inner surface of the first transparent layer in the first region. A plurality of light emitting diodes (LEDs) are connected to the first plurality of electrodes in the first region. A second plurality of electrodes are arranged on the inner surface of the first transparent layer in the second region. A third plurality of electrodes are arranged on the inner surface of the second transparent layer in the second region. Particles are arranged in the second region between the second plurality of electrodes and the third plurality of electrodes.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: April 2, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jonglee Park, Chris Wisniewski, Jarvis Chau
  • Patent number: 11947315
    Abstract: A holographic projection system includes a SLM that receives a light beam and generates a modulated beam projected at an eyebox, where: the modulated beam includes multiple versions of a test image; and the test image includes bright objects and transparent regions, which are selected dark areas of interest for measuring luminance. A control module runs a test to characterize contrast in each of multiple virtual image planes including: controlling the SLM to generate the modulated beam; measuring luminance levels of each of the versions of the test image displayed in the virtual image planes; calculating contrast ratios based on the luminance levels of each of the versions of the test image; determining whether the contrast ratios are within predetermined ranges of predetermined contrast ratios; and adjusting operation of the SLM in response to one of the contrast ratios not being within a corresponding one of the predetermined ranges.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: April 2, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Thomas A. Seder, Kai-Han Chang
  • Patent number: D1020539
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Jinho Seo
  • Patent number: D1020550
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Yahu Lin
  • Patent number: D1020552
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Minjae Shin
  • Patent number: D1020553
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Minjae Shin
  • Patent number: D1020561
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Benjamin D. Wilkins, James Baik
  • Patent number: D1020563
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Gapdong Choi, Hyunmin Choi
  • Patent number: D1020564
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Hwasup Lee, Benjamin D. Wilkins
  • Patent number: D1020565
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Hwasup Lee, Benjamin D. Wilkins
  • Patent number: D1020566
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Ramesh R. Gound
  • Patent number: D1020568
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Jinho Seo
  • Patent number: D1020570
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Jinho Seo
  • Patent number: D1020571
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: April 2, 2024
    Assignee: GM Global Technology Operations LLC
    Inventor: Leilei Jiao
  • Patent number: D1021702
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Kirk D. Bennion
  • Patent number: D1021719
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: April 9, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Kirk D. Bennion
  • Patent number: D1022273
    Type: Grant
    Filed: January 10, 2023
    Date of Patent: April 9, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Gapdong Choi, Youngmin Lee
  • Patent number: D1022823
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: April 16, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Scott P. Wassell, Casey Swanseger