Patents Assigned to GM Global Technology Operations LLC
  • Publication number: 20240172301
    Abstract: A system for vehicle Bluetooth pairing is provided. The system includes a smartphone configured for Bluetooth communication. The system further includes a vehicle including a computerized pairing operation controller configured for Bluetooth communication. The computerized pairing operation controller includes programming to emit a notification signal detectable by the smartphone. The smartphone includes programming to establish proximity to the vehicle based upon the notification signal and establish a Bluetooth low energy connection to the vehicle based upon establishing the proximity. The computerizing pairing operation controller further includes programming to automatically set up a Bluetooth connection after the Bluetooth low energy connection is established.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anurag Chelamchirayil Muraleedharan, Jarvis Chau
  • Publication number: 20240167506
    Abstract: A system for protecting a prefinished rotor journal of a rotor during a manufacturing process is provided. The system includes a manufacturing fixture. The fixture includes a plurality of supply lines providing a plurality of pressurized flows. The fixture further includes a plurality of static flow bearings configured for suspending the prefinished rotor journal between the plurality of static flow bearings without the prefinished rotor journal contacting the plurality of static flow bearings. Each of the static flow bearings includes a central duct receiving one of the plurality of pressurized flows. The central duct is configured for directing the one of the plurality of pressurized flows at the prefinished rotor journal.
    Type: Application
    Filed: November 22, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joseph G. Lovasz, Scott A. Hucker, Shane E. Bremer
  • Publication number: 20240170720
    Abstract: An electrochemical cell that cycles lithium ions includes a first electrolyte, a second electrode, a separating layer disposed between the first layer and the second layer. The first electrolyte includes a nickel-rich positive electroactive material that includes greater than or equal to about 80 mass % of nickel (Ni). The second electrode includes a silicon-based negative electroactive material. The electrochemical cell also includes an electrolyte in contact with at least one of the nickel-rich positive electroactive material in the first electrode and the silicon-based negative electroactive material in the second electrode. The electrolyte includes greater than or equal to about 1.5 wt. % to less than or equal to about 5 wt. % of an electrolyte additive. The electrolyte includes one or more isocyanate functional groups.
    Type: Application
    Filed: November 23, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chuanlong WANG, Xiaosong HUANG
  • Publication number: 20240171111
    Abstract: Apparatus and techniques for analyzing a capacitance value in an electric motor inverter are disclosed. A processor is coupled to a DC-AC inverter, which includes a capacitor across its terminals and is powered by a battery. The processor performs resistor switching to enable singular, periodic measurement of the capacitance. The measured value is compared with a nominal or beginning of life (BOL) value. An alert may be sent if the capacitance has degraded beyond a threshold. In other aspects, the DC torque ripple envelop is used to measure capacitance. The outcome is compared with the other tests to assess consistency. An inconsistent outcome may identify potential resistor degradation.
    Type: Application
    Filed: November 18, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Muhammad H. Alvi, Khorshed Mohammed Alam, Jiyu Zhang, Chunhao J. Lee, Brian A. Welchko
  • Publication number: 20240170703
    Abstract: Membrane electrode assemblies for fuel cells and components thereof are provided. In one example, a membrane electrode assembly includes a generally planar gas-permeable body having opposed first and second faces defining in-plane directions and a through-plane direction, a side face extending about an outer perimeter of the body and adjoining each of the first and second faces, and an active region bounded in the through-plane direction by the first and second faces and in the in-plane directions by an active region perimeter defined generally within the outer perimeter. The active region includes a distribution of a composite compound additive dispersed across at least one of the in-plane and through-plane directions. The composite compound additive includes a metal oxide-containing sub-compound and a tungsten-containing sub-compound.
    Type: Application
    Filed: November 17, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ruichun Jiang, Zhongyi Liu, Nicholas P.W. Pieczonka
  • Publication number: 20240166232
    Abstract: A system and method are provided for controlling a vehicle. In one embodiment, a system includes: a sensor system configured to generate sensor data sensed from an environment of the vehicle; and a control module configured to, by a processor, based on the sensor data, identify a gap in a lane line on a roadway in front of the vehicle, determine at least two points within the gap, determine a curve between the at least two points, compute a correlation measure based on the curve, generate lane stitching data based on data based on the curve and an evaluation of the correlation measure, and controlling one or more components of the vehicle based on the stitching data.
    Type: Application
    Filed: November 22, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ami Woo, Tushita Arun Sikder, Amirreza Mirbeygi Moghaddam, Mohammadali Shahriari, Reza Zarringhalam
  • Publication number: 20240165732
    Abstract: A method for resistance welding at least three steel sheets, a weld structure produced by resistance welding at least three steel sheets and a method for determining weldability solutions when resistance welding at least three steel sheets in a stack are provided. By applying a layer of adhesive/sealer material between a thicker outer sheet of steel and an adjacent thicker inner sheet, thereby generating extra heat that increases penetration into a thinner outer sheet but with no layer of adhesive/sealer material between a thinner outer sheet and an adjacent thicker inner sheet, current density drop issues of a current process are addressed.
    Type: Application
    Filed: November 22, 2022
    Publication date: May 23, 2024
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Pei-Chung Wang, Anthony J. DiCocco, Zhenke Teng, Nicholas A. Brizes
  • Patent number: 11989947
    Abstract: A perception system is adapted to receive visual data from a camera and includes a controller having a processor and tangible, non-transitory memory on which instructions are recorded. A subsampling module, an object detection module and an attention module are each selectively executable by the controller. The controller is configured to sample an input image from the visual data to generate a rescaled whole image frame, via the subsampling module. The controller is configured to extract feature data from the rescaled whole image frame, via the object detection module. A region of interest in the rescaled whole image frame is identified, based on an output of the attention module. The controller is configured to generate a first image based on the rescaled whole image frame and a second image based on the region of interest, the second image having a higher resolution than the first image.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: May 21, 2024
    Assignee: GM Global Technology Operations LLC
    Inventors: Shuqing Zeng, Jordan B. Chipka, Thanura R. Elvitigala
  • Patent number: 11991811
    Abstract: A method and apparatus for harvesting a static electric charge from suspended particles in an atmosphere includes exposing a charge conductor to the suspended particles in the atmosphere and selectively providing a conductive path between the charge conductor and a terrestrial ground including a rechargeable energy storage device. Energy may be selectively transferred to another energy storage device.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Madhusudan Raghavan, Brent Thomas Deep
  • Patent number: 11987090
    Abstract: A damping system includes a first magnetic damper pair mounted on a suspension system of a vehicle. The first magnetic damper pair includes a first magnet mounted on a first surface of a body of the vehicle and a second magnet mounted on a first moveable component of the suspension system coupled to a wheel of the vehicle. A sensor is mounted on the body of the vehicle or the wheel. A damping system control module is configured to receive, from the sensor, inputs indicative of a velocity and a displacement of the wheel relative to the body of the vehicle, calculate an amount of force to generate between the magnetic damper pair in a direction opposite a direction of movement of the wheel, and control supply of current to at least one of the first magnet and the second magnet to generate the calculated amount of force.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Savannah Theisen, Jeffrey L. Vogt
  • Patent number: 11987251
    Abstract: A system includes a computing device. The computing device includes a processor and a memory, the memory including instructions such that the processor is configured to: transform vehicle dynamics data to corresponding roadway geometry data, calculate a rationalization value based on a difference between the roadway geometry data and map-based roadway geometry data, and determine whether to modify a vehicle state based on the rationalization value.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mohammadali Shahriari, Reza Zarringhalam, Haley Marie Dalzell, Khizar Ahmad Qureshi, Patrick Francis Pirrmann
  • Patent number: 11987148
    Abstract: An optimal control strategy for a distributed low voltage system with unidirectional DC/DC converters is provided. DC/DC converters regulate high electrical voltages from high voltage battery modules and output regulated electrical currents to a low voltage battery. A control system differentially varies electrical currents input to the DC/DC converters to balance states of charge in high voltage battery modules, by: calculating sets of electrical currents that balance states of charge in high voltage battery modules based on values for a low voltage regulator electrical current, in advance to knowing a value for the low voltage regulator electrical current, interpolating the sets of electrical currents to be input to the DC/DC converters in response to receiving the value for low voltage regulator electrical current, and selecting an interpolated set of the electrical currents from the sets as input to the DC/DC converters in accordance with the value received.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jun-mo Kang, Muhammad Hussain Alvi, Mohamed Kamel
  • Patent number: 11987136
    Abstract: A system in a vehicle includes a current regulator to obtain current commands from a controller based on a torque input and provide voltage commands and an inverter to use the voltage commands from the current regulator and direct current (DC) supplied by a battery to provide alternating current (AC). An electric traction motor provides drive power to a transmission of the vehicle based on injection of the AC from the inverter. A current observer obtains measured input current signals based on the AC for a current control cycle and provides predicted current signals for a next control cycle to the current regulator using a model. The current observer includes a controller to check output of the model against the measured input current signals. The current observer tunes parameters of the controller and the model used to generate the predicted current signals based on the measured input current signals.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Vinod Chowdary Peddi, Muhammad Hussain Alvi, Lei Hao, Suresh Gopalakrishnan
  • Patent number: 11987241
    Abstract: An autonomous vehicle and a system and method for operating the autonomous vehicle. The system includes a sensor and a processor. A disturbance force or yaw moment is received on the autonomous vehicle. The sensor measures a position of the autonomous vehicle within a lane of a road with respect to road boundaries and lane markings. The processor is configured to resist an effect of a disturbance force or yaw moment received on the autonomous vehicle. The processor minimizes a tracking error between a path of the autonomous vehicle and an initial track lane, wherein resisting the effect creates an inflection point in the path of the autonomous vehicle, establishes a final track lane at a closer of a lateral position of the inflection point and a lane center to the initial track lane, and tracks the path to the final track lane.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jimmy Zhong Yan Lu, Mohammadali Shahriari, Reza Zarringhalam
  • Patent number: 11986879
    Abstract: A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Liang Wang, Qigui Wang, Dale A. Gerard, Steven L. Burkholder, Ronald C. Daul
  • Patent number: 11987252
    Abstract: Systems and methods for determining whether a vehicle is in an understeer or oversteer situation. The system includes a controller circuit coupled to an IMU and an EPS, and programmed to: calculate, for a steered first axle, an axle-based pneumatic trail for using IMU measurements and EPS signals and estimate a saturation level as a function of a distance between the axle-based pneumatic trail and zero. The system estimates, for an unsteered second axle, an axle lateral force curve with respect to a slip angle of the second axle, and a saturation level as a function of when the axle lateral force curve with respect to the slip angle transitions from positive values to negative values. The saturation level of the first axle and the second axle are integrated. The system determines that the vehicle is in an understeer or oversteer situation as a function of the integrated saturation levels.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Naser Mehrabi, Saurabh Kapoor, Seyedeh Asal Nahidi, SeyedAlireza Kasaiezadeh Mahabadi, James H Holbrook, Hualin Tan, Bakhtiar B Litkouhi
  • Patent number: D1027746
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Jinho Seo
  • Patent number: D1027767
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Zhiqing Huang
  • Patent number: D1027782
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: David Gillespie
  • Patent number: D1028304
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: May 21, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Feng Wang