Patents Assigned to GLOBAL TECHNOLOGY OPERATIONS LLC
  • Patent number: 11967722
    Abstract: A battery includes positive and negative current collectors and a plurality of bipolar electrodes arranged in a stack between the positive and negative current collectors. The positive and negative current collectors and the stack of the plurality of bipolar electrodes are folded in an S-shape.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: April 23, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qili Su, Zhe Li, Meiyuan Wu, Mengyan Hou, Haijing Liu
  • Patent number: 11965452
    Abstract: A method for detecting a contaminant in a vehicle coolant system during service includes contacting a chromophore impregnated strip and a heat transfer fluid sample, where the chromophore impregnated strip includes a complexing agent selected to form a complex with the contaminant that causes a color change in the chromophore impregnated strip and thereby indicates the presence of the contaminant in the heat transfer fluid sample.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: April 23, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Thomas J. Chapaton, Nicholas Paul William Pieczonka, William Reginald Collin, Ratandeep Singh Kukreja
  • Publication number: 20240125602
    Abstract: Methods and systems are provided for detecting a trip of a user in a vehicle. A method includes: receiving by a processor of a user device, device scan data from one or more communication enabled devices; determining, by the processor, whether the devices listed in the device scan data is a vehicle device; in response to the determining, identifying, by the processor, the vehicle device as a found device; determining, by the processor, whether the found device is listed in a known device list; and generating, by the processor, at least one of a trip start signal and a trip end signal based on whether the found device is listed in the known device list.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Daniel E. Rudman, Jeffrey A. Phelan, Nicholas T. Mason, JR., Nathaniel James Reline-Martin, James Scott MacGuidwin, Daniel Schleuger
  • Publication number: 20240128782
    Abstract: A method for charging a battery pack via an offboard energy source uses an interleaved boost converter and closed-loop control. The energy source outputs a charging current via a DC charge port during a direct current fast-charging (DCFC) process. A controller detects a voltage disparity condition in which a voltage capability of the battery pack exceeds a voltage capability of the energy source. In response to this condition, a rise of the charging current over time is recorded as a current trajectory and an open-loop equivalent time constant is extracted from the current trajectory. A time constant of the PI control block is set substantially equal to the equivalent time constant. The PIM is controlled in closed-loop using proportional-integral control. The charging current is controlled in a continuous current conduction mode during the DCFC process.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chandra S. Namuduri, Rashmi Prasad
  • Publication number: 20240128512
    Abstract: An electrochemical cell includes a first porous electrode, a second porous electrode, and a separating layer disposed therebetween. The first porous electrode includes an electrolyte intermingled with a positive electroactive material represented by: LiM1xM2yM3zM4(1?x?y?z)O2 where M1 include nickel (Ni) and M2, M3, and M4 are transition metals independently selected from the group consisting of: manganese (Mn), cobalt (Co), aluminum (Al), iron (Fe), and combinations thereof and where 0.8?x?1, 0?y?1, and 0?z?1. The second porous electrode includes the electrolyte intermingled with a silicon-based negative electroactive material. The electrolyte includes greater than or equal to about 0.5 wt. % to less than or equal to about 2 wt. % of an electrolyte additive including (2-cyanoethyl)triethoxysilane (TEOSCN). The electrolyte also includes a lithium-containing salt and a solvent mixture including ethylene carbonate (EC) and dimethyl carbonate (DMC) in mass ratio of about 3:7.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Meng JIANG, Chuanlong WANG
  • Publication number: 20240125901
    Abstract: A system and method of vibration and audible noise reduction in a LiDAR resonator includes a spring fork mechanism including multiple spring forks. Each spring fork includes two tines. The first tine of a first and second spring fork include a mounted optical module to transmit a light pulse and receive a reflection of the light pulse. The second tine of the first and second spring forks include a mounted counterweight having a mass and center of gravity equal to a mass and center of gravity of the mounted optical module. To reduce or eliminate longitudinal vibrations each tine includes a first section and a second section, the first section attached to the second section by a U-shaped section.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qijun Zhang, Mark A. Stebbins, Srinivasa R. Molleti
  • Publication number: 20240129366
    Abstract: A system for managing communication between a vehicle and a broker module includes a telematics unit connected to the vehicle. The telematics unit is configured to carry out wireless data communications according to a publish-subscribe messaging protocol. A command unit is in communication with the telematics unit, the command unit having a processor and tangible, non-transitory memory on which instructions are recorded. The telematics unit is configured to establish a network connection with the broker module. The command unit is adapted to create a dynamic retry delay process for the network connection by varying a connection retry delay time based on a plurality of failure categories and an operation mode of the vehicle. The plurality of failure categories each corresponds to a respective failure in the network connection.
    Type: Application
    Filed: October 13, 2022
    Publication date: April 18, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Naga Siva Vikas Vemuri, Scott T. Droste, Yu-Kung Ke, Andrew J. MacDonald
  • 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: 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
  • Publication number: 20240118691
    Abstract: An augmented reality system operable to provide passengers with a personalized augmented reality environment and experience. The augmented reality system may select the augmented reality environment according to a plurality of augmented reality themes, with the passengers being enabled to personalize their traveling experience and/or to interact with virtual objects to generate virtual commands suitable for use in implementing real control of the autonomous vehicle.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C. Valeri, Timothy J. Roggenkamp
  • Publication number: 20240116526
    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: Application
    Filed: October 3, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Noah Sharkus, Prabhjot Kaur, Nicholas Constantine Sidiropoulos
  • Publication number: 20240120814
    Abstract: Presented are electric motors and apparatuses thereof for discharging an electric charge buildup on the rotor. In an embodiment, an electric motor apparatus includes a case, a stator arranged within the case, a rotor, a motor shaft extending longitudinally through the rotor to include an axial end, a grounding brush having an outer surface and an elliptical surface, and a spring including one portion maintaining slidable contact with the case and another portion coupled to an outer surface of the brush, the elliptical surface attached to the axial end of the motor shaft for causing a current flow via the brush through the case, which can act as system ground, for discharging an electric charge buildup on the stator due to a parasitic capacitance between the stator and rotor.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William T. Ivan, Alireza Fatemi, Margarita P. Thompson
  • Publication number: 20240116503
    Abstract: A system of controlling operation of a vehicle includes one or more sensors operatively connected to the vehicle. The sensors are configured to obtain respective data of a scene and include a radar unit. A command unit is adapted to receive the respective data and includes a processor and tangible, non-transitory memory on which instructions are recorded. The command unit is configured to determine an orientation angle of a pedestrian in the scene, a Doppler frequency of the pedestrian and a distance of the pedestrian from a border of a road, based in part on the respective data. The orientation angle is based on a heading of the pedestrian relative to a direction of a road. The command unit is configured to designate a status of the pedestrian as either crossing or not crossing based on the distance, the orientation angle and the Doppler frequency of the pedestrian.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Oded Bialer, Siddhartha Gupta
  • Publication number: 20240116479
    Abstract: In exemplary embodiments, methods and systems are provided that include: sensors configured to obtain sensor data for a vehicle having both friction braking and regenerative braking capabilities and coupled to a trailer, the sensor data including: friction braking data as to a vehicle friction braking force for the vehicle; and regenerative braking sensor data as to a vehicle regenerative braking force for the vehicle; and a processor coupled to the sensors and configured to at least facilitate controlling braking of the trailer by providing trailer braking force, via instructions provided by the processor, based on both the friction braking data and the regenerative braking sensor data, with a sensitivity toward the vehicle regenerative braking force such that the trailer braking force is affected differently by the vehicle regenerative braking force versus the vehicle friction braking force.
    Type: Application
    Filed: October 6, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael Nguyen, Gursimran Chauhan, Corey A Robinson
  • Publication number: 20240118408
    Abstract: A system of controlling operation of a vehicle includes a lidar unit and a radar unit configured to obtain measured lidar datapoints and a measured radar signal, respectively. A command unit is adapted to receive the measured lidar datapoints and the measured radar signal, the command unit including a processor and tangible, non-transitory memory on which instructions are recorded. The command unit is configured to identify respective objects in the measured lidar datapoints and assign a respective radar reflection intensity to the measured lidar datapoints in the respective objects. A synthetic radar signal is generated based in part on the radar reflection intensity. The command unit is configured to obtain an enhanced radar signal by adjusting the measured radar signal based on the synthetic radar reference signal.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Oded Bialer, Yuval Haitman
  • Publication number: 20240120662
    Abstract: An antenna system operates in a hybrid coplanar waveguide and rectangular waveguide mode. A slot array with a conductive layer is disposed on a substrate and defines a coplanar waveguide joining a number of side slots arranged in a line forming the slot array. Another substrate is spaced apart from the substrate and a ground plane is defined thereon. A defined volume waveguide is disposed between the substrates. The array is configured to radiate a radiation pattern in a hybrid mode that results from a combination of the slot array and the defined volume waveguide. The side slots may be elliptical in shape for side lobe level reduction.
    Type: Application
    Filed: July 28, 2020
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hanseung Lee, Igal Bilik
  • Publication number: 20240120486
    Abstract: An electrochemical cell may include a first electrode that includes a positive electroactive material, a second electrode that includes a negative electroactive material and a polyacrylate binder, and a separating layer disposed between the first and second electrodes. The polyacrylate binder has a molecular weight greater than or equal to about 250,000 mol/g to less than or equal to about 500,000 mol/g. The second electrode is prepared by disposing an electrode forming slurry having a temperature greater than or equal to about 4° C. to less than or equal to about 15° C. one or near a surface of a current collector. The electrode forming slurry includes the negative electroactive material and the polyacrylate binder. The negative electroactive material can be a silicon-containing material.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 11, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Insun YOON, Meixian WANG, Ion C. HALALAY
  • 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: 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: 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