Patents Assigned to GM
  • Patent number: 11247332
    Abstract: A jointed mechanism includes a passive pendulum system attached to and suspended from the multi-axis robot. The system includes one or more position sensors configured to measure a joint angle on the pendulum system, at least one arm, and an end-effector attached to a distal end of the pendulum system. A controller implements a method to selectively control motion of the robot in a plurality of control modes. The control modes include a Cooperative Mode and an Autonomous Mode. The controller is configured to detect contact with the end-effector when operating in the Autonomous Mode, and to automatically initiate a control action in response to the contact. The pendulum system may be a parallelogram arrangement.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: February 15, 2022
    Assignees: GM Global Technology Operations LLC, Universite Laval
    Inventors: Muhammad E. Abdallah, James W. Wells, Pascal Labrecque, Clement Gosselin, Thierry Laliberte
  • Patent number: 11247721
    Abstract: Determining a sealing integrity of a steering assembly determining when the steering assembly is performing a steering event, determining an expected pressure change associated with the steering event, and receiving data from the pressure sensing member. During performance of the steering event, the controller analyzes the data from the pressure sensing member and determines when the pressure sensing member detects the expected pressure change and reduces an incident counter. When the pressure sensing member does not detect the expected pressure change, the incident counter is increased.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: February 15, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Travis S. Larson, George E. Doerr
  • Patent number: 11250703
    Abstract: The present technology utilizes vehicles in a fleet of vehicles to record weather data samples at many locations in a service area. Each vehicle in the fleet becomes a weather station that can record weather data at many locations and frequently. The weather data can be used to make intelligent decisions regarding fleet management.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: February 15, 2022
    Assignee: GM Cruise Holdings, LLC
    Inventors: Nestor Grace, Diego Plascencia-Vega, Spyros Maniatopoulos
  • Patent number: 11251447
    Abstract: A process for detecting a low-level leak in a fuel cell system is provided. The process includes, within a computerized fuel cell controller, operating programming to monitor operation of the fuel cell system, determine an expected reduction in pressure within an anode gas loop of the fuel cell system based upon the monitored operation, determine a calibrated threshold pressure change based upon the expected reduction in pressure and a margin selected to indicate excess hydrogen gas within the anode gas loop indicating a fuel injector leak, when a fuel injector of the fuel cell system is commanded to a closed state, monitor a pressure within the anode gas loop through a time period, compare the monitored pressure within the anode gas loop through the time period to the calibrated threshold pressure change, and when the comparing indicates the excess hydrogen gas is present, taking remedial action.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: February 15, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Jie Kou, Chad Dubois, Xiaofeng Wang
  • Patent number: 11252840
    Abstract: A cooling assembly according to various aspects of the present disclosure includes a housing, an electronic component, a dielectric coolant, and a cover. The housing includes an interior compartment having a basin region in which the electronic component and the coolant are disposed. The coolant undergoes phase change between a liquid state and a gas state. The coolant is in direct contact with the electronic component in the liquid state. The cover component extends transversely through the interior compartment and is coupled to the body. The cover component is disposed in a direction with respect to the basin region. The cover component at least partially defines a port in fluid communication with the basin region. The cover component is configured to permit flow therethrough of the dielectric coolant in the gas state in at least the direction.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: February 15, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anil K. Sachdev, Chih-Hung Yen, Venkata Prasad Atluri
  • Patent number: 11247655
    Abstract: A hybrid powertrain system includes an electric machine, a torque converter, a transmission, a hydraulic pump, and a controller, and it is arranged to transfer mechanical power to a driveline. The torque converter includes a clutch, a pump, and a turbine, and the electric machine is rotatably coupled to the hydraulic pump and to the torque converter pump. The hydraulic pump is fluidly connected to the transmission, and the controller is operably connected to the electric machine and the torque converter clutch. The controller is executable to determine an operator command, and control the electric machine to spin the hydraulic pump in a speed control mode and control the torque converter clutch in an open state. Upon achieving a desired minimum pump speed, the torque converter clutch is applied in a slip state and the electric machine is controlled in response to the operator command.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: February 15, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Dongxu Li, Chunhao J. Lee, Neeraj S. Shidore, Luke D. Shepley, Brenton J. Bergkoetter, Norman K. Bucknor
  • Publication number: 20220041186
    Abstract: Systems and methods are provided for identifying an imminent low state of charge of a battery in an autonomous vehicle, and automatically powering down the vehicle before a zero state of charge event occurs. In particular, the autonomous vehicle automatically powers down while there is enough energy in the batteries to restart the vehicle and drive the vehicle a short distance to a charging station.
    Type: Application
    Filed: August 6, 2020
    Publication date: February 10, 2022
    Applicant: GM Cruise Holdings LLC
    Inventor: Marco Antonio Gaxiola Michel
  • Publication number: 20220045379
    Abstract: The present disclosure relates a temperature regulating system including an anisotropic material for use as a heating material or element (e.g., an active heater) and a cooling material or element (e.g., passive cooling) in a battery pack including one or more electrochemical cells. The temperature regulating system includes one or more temperature control elements. Each temperature control element is configured to be in a heat transfer relationship with one or more electrochemical cells so as to heat and/or cool the one or more electrochemical cells of the battery pack. Each temperature control element includes two or more structural elements and one or more anisotropic elements disposed between the two or more structural elements. The temperature control elements may be disposed between the electrochemical cells of the stack, disposed around the electrochemical cells of the stack, or both.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 10, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Dave G. RICH, Saad HASAN, Lyall K. WINGER, Dewen KONG, Haijing LIU
  • Patent number: 11242032
    Abstract: In various embodiments, methods, systems, and vehicles are provided. In certain embodiments, a vehicle includes a sensor and a processor. The sensor is configured to at least facilitate detecting when a user is disposed within the vehicle. The processor is coupled to the sensor, and is configured to at least facilitate: identifying the user; retrieving, from a memory, a sequence of inputs that is associated with the identified user as a trigger for a customized silent alarm feature for the user; monitoring for the sequence of inputs while the user is disposed within the vehicle; and providing instructions for taking an action when the sequence of inputs is detected while the user is disposed within the vehicle.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Matthew E. Gilbert-Eyres, Matthew C. Neely, Eric T. Hosey, Huong T. Chim
  • Patent number: 11242927
    Abstract: A continuously variable transmission control system includes a continuously variable transmission (CVT) including a primary variator pulley and a secondary variator pulley each including a set of pulley members defining a variable-width gap, and a flexible member positioned within the variable-width gap and movable to define a CVT ratio. The transmission control system also includes a primary pulley valve controlling a primary pulley pressure of a fluid to the primary variator pulley, a secondary pulley valve controlling a secondary pulley pressure of the fluid to the secondary variator pulley; and a pulley pressure control system configured to recognize and mitigate pressure oscillations occurring in the primary pulley pressure or in the secondary pulley pressure.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ramadityanand Bhogadi, Paul G. Otanez
  • Patent number: 11241967
    Abstract: Presented are vehicle powertrains and control logic for provisioning intelligent fast-torque output, methods for making/using such systems, and electric-drive vehicles with dynamically allocated fast-torque production. A method of controlling torque output of a vehicle powertrain includes a vehicle controller receiving sensor data and determining therefrom maximum and minimum motor torque capacities of a traction motor. The controller calculates the traction motor's maximum and minimum effective motor capacities based on a previous motor torque command and the maximum and minimum torque capacities, respectively. The controller then determines if a negative of the crankshaft torque reserve is: (1) greater than the minimum effective motor capacity; and (2) less than the maximum effective motor capacity. If (1) or (2) is true, an engine spark torque command is set equal to an air torque spark value, and the controller commands an engine assembly to modulate its torque output based on the spark torque command.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: February 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Matthew Yard, Luke D. Shepley, Jacob B. Wilson
  • Patent number: 11243408
    Abstract: A speckle reduction system is provided and includes a speckle reduction component and a control module. The speckle reduction component includes electrode layers and a liquid crystal layer. The liquid crystal layer is disposed between the electrode layers and configured to receive light from a coherent light source. The control module is configured to (i) supply a first voltage signal having a first voltage to the electrode layers to provide a first speckle pattern output, and (ii) supply a second voltage signal having a second voltage to the electrode layers to provide a second speckle pattern output, wherein the first voltage and the second voltage are greater than zero. The control module is configured to transition between providing the first voltage signal and the second voltage signal in less than at least one of half an integration time of a human eye or 8 milliseconds.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: February 8, 2022
    Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, KENT STATE UNIVERSITY
    Inventors: John Ernest Harden, Jr., Liang-Chy Chien, Kai-Han Chang, Thomas A. Seder
  • Patent number: 11242019
    Abstract: A cooling and lubrication system for a motor vehicle drive unit includes a drive unit sump, a first mechanically-driven pump, a second mechanically-driven pump, and an oil/air separator reservoir, among other possible components. The drive unit sump holds drive unit fluid. The first mechanically-driven pump fluidly communicates with the drive unit sump, and the second mechanically-driven pump fluidly communicates with the drive unit sump. The oil/air separator reservoir resides downstream of the first mechanically-driven pump and resides downstream of the second mechanically-driven pump.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Robert Parrish, Nathaniel J. Diroff, Vijay A. Neelakantan
  • Patent number: 11242850
    Abstract: A gear assembly of a scavenge oil pump for a vehicle is provided. The assembly comprises a first pair of meshing gears comprising a first drive gear disposed about a drive shaft and a first slave gear disposed about a slave drive in parallel relationship with the drive shaft. The first drive gear and first slave gear are in rotational meshing cooperation. The assembly comprises a second pair of meshing gears comprising a second drive gear disposed about the drive shaft and a second slave gear disposed about the slave drive. The second drive gear and second slave gear are in rotational meshing cooperation. The second pair of meshing gears is disposed linearly adjacent to the first pair of meshing gears. The first pair and the second pair of meshing gears have about ? of a tooth spacing relative to each other for torque transmission of scavenge oil.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: February 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Sean M. McGowan, Mark R. Claywell, Chung Y. Wei
  • Patent number: 11245105
    Abstract: A method of manufacturing a component for a reference electrode assembly according to various aspects of the present disclosure includes providing a separator having first and second opposing surfaces. The method further includes sputtering a first current collector layer to the first surface via magnetron or ion beam sputtering deposition. A porosity of the separator is substantially unchanged by the sputtering. In one aspect, the method further includes sputtering a second current collector layer to the second surface via magnetron or ion beam sputtering deposition. In one aspect, the first current collector layer includes nickel and defines a first thickness of greater than or equal to about 200 nm to less than or equal to about 300 nm and the second current collector layer includes gold and defines a second thickness of greater than or equal to about 25 nm to less than or equal to about 100 nm.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gayatri V. Dadheech, Brian J. Koch, Alfred Zhang, Robert S. Conell, Jing Gao
  • Patent number: 11241980
    Abstract: A vehicle seat positioning system includes a seat occupancy sensor that generates a signal indicating the presence or absence of an occupant in each of a first vehicle seat and a second vehicle seat, a seat proximity sensor that generates a seat proximity signal indicating a distance between the first vehicle seat and an occupant of the second vehicle seat, and vehicle seat position controller configured to command the first vehicle seat to move away from the second vehicle seat in response to a signal from the seat occupancy sensor indicating absence of an occupant in the first vehicle seat and the presence of an occupant in the second vehicle seat and a signal from the seat proximity sensor indicating a distance between the first vehicle seat and the occupant of the second vehicle seat is less than a predetermined threshold distance.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventor: Valor Yaldo
  • Patent number: 11242852
    Abstract: An automobile vehicle variable displacement pump includes a pump body having a pump shaft extending through the pump body. A rotor is connected to the pump shaft and co-rotates with the pump shaft. The rotor has multiple radially outwardly directed slots. A vane support ring supports multiple vanes, the vanes individually slidably received in one of the slots of the rotor. A slide is rotatably connected to the pump body having the rotor and the vane support ring positioned within an inner wall of the slide. A bow spring plate defining a biasing member directly contacts the slide to bias the slide to rotate about an arc of curvature.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: February 8, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Andy Bennett, Sr., Sean McGowan
  • Patent number: 11242890
    Abstract: An articulating joint includes a linkage and a pin. The linkage includes a surface defining an opening. The pin extends along a pivot axis, and is disposed, at least in-part, in the hole. The pin has a core component made of a first material, and an outer component that at least partially circumferentially surrounds the core component and is made of a wear resistant material. The outer component includes a gradated sub-surface depth extending in a radial direction.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Julie A. Swartz, Alyn M. Gray, Grant W. Brady, Zhe Li
  • Patent number: 11242915
    Abstract: A two-speed drive unit of an electric vehicle includes a planetary gear set transmission having multiple elements including a first element, a second element and a third element. A motor generator unit supplies a motive force to the planetary gear set transmission. A first stage gear transfers the motive force to the planetary gear set transmission from the motor generator unit. A second stage gear is connected through the second element to a final drive. A first torque transmitting device defining a selectable one-way clutch (SOWC) is connected to the third element.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chunhao J Lee, Farzad Samie, Chi-Kuan Kao, Norman K Bucknor
  • Patent number: 11242060
    Abstract: In various embodiments, methods, systems, and vehicles are provided for executing a lane change for a host vehicle. In various embodiments, one or more sensors obtain sensor data pertaining to target vehicles in proximity to the host vehicle; and a processor at least facilitates: obtaining, using the sensor data, predictions as to future positions and movement of the target vehicle; identifying a plurality of gaps through which the host vehicle may accomplish the lane change, based on the predictions; calculating a cost for each of the plurality of gaps; selecting, a selected gap of the plurality of gaps, having a minimized cost; and executing the lane change for the host vehicle via the selected gap.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: February 8, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Sayyed Rouhollah Jafari Tafti, Pinaki Gupta