Abstract: A method for determining a two wire open fault on a two wire communications bus including determining a threshold in response to a first data from a first electronic control unit and a second data received from a second electronic control unit via the two wire communications bus, wherein the first data includes a first plurality of dominant bits and a first plurality of recessive bits and the second data includes a second plurality of dominant bits and a second plurality of recessive bits, determining a current network health indicator in response to a third data from the first electronic control unit having a third plurality of dominant bits and a third plurality of recessive bits, and generating a double wire open fault error report in response to the current network health indicator exceeding the threshold.
Abstract: Systems and methods are provided for printing sections of a part with integral locating and joining features. A system for joining part sections of a part having at least two separate sections includes a locating feature and a joining feature. The locating feature includes structures integrally formed with the sections to locate them relative to one another. The joining feature includes structures integrally formed with the sections to lock the sections together.
Type:
Application
Filed:
December 8, 2022
Publication date:
June 13, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Adam John Campbell, Ali Shabbir, Dale Miller
Abstract: Vehicles and related systems and methods are provided for controlling a vehicle in an autonomous operating mode. One method involves obtaining navigation information for a route for the vehicle from a navigation system, transforming the navigation information into data points defining an upcoming trajectory of the route, mapping the data points to a corresponding mapped set of lane segments encompassing one or more of the data points, assigning lane preference indicia to the mapped set of lane segments, and autonomously operating one or more actuators onboard the vehicle to laterally maneuver the vehicle into one or more lanes at respective longitudinal positions along the route corresponding to one or more lane segments of the mapped set of lane segments in a manner that is influenced by the lane preference indicia assigned to the lane segments.
Type:
Application
Filed:
December 8, 2022
Publication date:
June 13, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
David Allen Craig, Quan Zhang, David E. Bojanowski, Yan Nok Cheng
Abstract: In exemplary embodiments, methods and systems are provided that include one or more underbody cameras and a processor for a vehicle. The underbody cameras are configured to obtain camera images under the vehicle. The processor is coupled to the one or more underbody cameras, and is configured to at least facilitate: performing image processing for the camera images; and determining a ride height, a measure of weight on the vehicle, or both, based on the camera images from the one or more underbody cameras and the processing thereof via the processor.
Type:
Application
Filed:
December 8, 2022
Publication date:
June 13, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Steffen P Lindenthal, Avesta Goodarzi, Utkarsh Saini, Christopher Andrew Stanek
Abstract: A system for a fuel-cell subgasket active area edge with through-plane proton conduction is provided. The system includes a fuel-cell membrane-subgasket assembly. The assembly includes an active area including a proton exchange membrane and a first portion of a transitional proton-conductive material attached to the proton exchange membrane. The assembly further includes a non-active subgasket boundary surrounding the active area, configured for preventing a flow of gaseous material and liquid material therethrough. The non-active subgasket boundary includes a non-conductive subgasket and a second portion of the transitional proton-conductive material attached to the subgasket.
Type:
Application
Filed:
December 7, 2022
Publication date:
June 13, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Ruichun Jiang, Wenbin Gu, Matthew J. Beutel
Abstract: A system of managing communications in a vehicle includes a telematics unit connected to the vehicle. The telematics unit is configured to execute a retransmission request protocol upon receipt of erroneous data. A command unit in communication with the telematics unit, the command unit having a processor and tangible, non-transitory memory on which instructions are recorded. The command unit is adapted to determine vehicle situational parameters at a beginning of a data communication cycle. The vehicle situational parameters including current location and navigation status of the vehicle. When a first retransmission according to the retransmission request protocol is detected, the vehicle situational parameters are updated. The command unit is adapted to determine a desirable value of a retransmission frequency for the retransmission request protocol based in part on the updated vehicle situational parameters. In one embodiment, the retransmission request protocol is Hybrid Automatic Repeat Request (HARQ).
Type:
Application
Filed:
December 12, 2022
Publication date:
June 13, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Venkata Naga Siva Vikas Vemuri, Andrew J MacDonald, Scott T. Droste
Abstract: A method for aerial-based event notification includes detecting a trigger event with one or more electronic units of a system. The system includes a telematics unit, a drone having one or more notification actuators, and a tether that connects the drone to the system. The method further includes launching the drone with the telematics unit in response to the trigger event, waiting a predetermined time after the trigger event, retracting the drone in response to a subsequent event being undetected within the predetermined time after the trigger event, detecting the subsequent event with the one or more electronic units, placing the drone in an alert configuration in response to detecting the subsequent event within the predetermined time after the trigger event, and generating one or more alert notifications from the one or more notification actuators while the drone is in the alert configuration.
Type:
Grant
Filed:
June 27, 2022
Date of Patent:
June 11, 2024
Assignee:
GM Global Technology Operations LLC
Inventors:
Umer Khalid, Ningsheng Qiao, Russell A. Patenaude
Abstract: Methods and system for training a neural network for depth estimation in a vehicle. The methods and systems receive respective training image data from at least two cameras. Fields of view of adjacent cameras of the at least two cameras partially overlap. The respective training image data is processed through a neural network providing depth data and semantic segmentation data as outputs. The neural network is trained based on a loss function. The loss function combines a plurality of loss terms including at least a semantic segmentation loss term and a panoramic loss term. The panoramic loss term includes a similarity measure regarding overlapping image patches of the respective image data that each correspond to a region of overlapping fields of view of the adjacent cameras. The semantic segmentation loss term quantifies a difference between ground truth semantic segmentation data and the semantic segmentation data output from the neural network.
Abstract: A multimedia system is provided for a scalable infotainment system of a motor vehicle. The scalable infotainment system includes a camera, which is releasably attached to the motor vehicle and supports camera software components for generating a media signal. The multimedia system includes a media player and a computer attached to the motor vehicle. The computer has a processor and a non-transitory computer readable storage medium, which stores player software components including multiple streaming protocols used by the media player to play a media stream. The processor is programmed to transmit to the camera a player setup signal including data associated with the player software components. The processor is further programmed to receive from the camera a media signal associated with a media stream generated by the camera by using a common one of the streaming protocols supported by the camera and the media player.
Type:
Grant
Filed:
June 24, 2022
Date of Patent:
June 11, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Esther Anderson, Jace C. Stokes, Fan Bai, Chuan Li, Mark T. Gaylord, Wende Zhang, Paul Andrew Justin
Abstract: Systems and methods of testing a vehicle system. The systems and methods generate a simulation of a driving scenario to provide simulation video data, display the simulation on a monitor using the simulation video data, capture the displayed simulation using a camera system of the vehicle system to provide video data, process the video data using a perception algorithm to detect and track objects in the video data to provide perception data, control a vehicle actuator of the vehicle system in response to the perception data to provide command data, and adapt the simulation based on the command data. The camera system has a field of view and the monitor has a viewable area. The simulation of the driving scenario is scaled in proportion to a ratio of the field of view of the camera projected onto the monitor and dimensions of the viewable area.
Abstract: A method includes: selectively actuating switches of an inverter module and first, second, third, and fourth switches of a motor; and charging a battery with power from a charger using at least one of first, second, and third stator windings of the motor, the battery having a first voltage and being electrically connected in parallel with the inverter module, and the charger having a second voltage that is less than the first voltage.
Type:
Grant
Filed:
April 26, 2022
Date of Patent:
June 11, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Rashmi Prasad, Chandra S. Namuduri, Lei Hao, Suresh Gopalakrishnan
Abstract: An example automated driving system computer can include a board, one or more processors coupled to the board, a first layer of a first thermal interface material applied on the one or more processors, a heat spreader having a first side and a second side, the first side in contact with the first layer of the first thermal interface material, a second layer of a second thermal interface material applied on the second side of the heat spreader, and a cold plate in contact with the second layer of the second thermal interface material.
Type:
Grant
Filed:
May 6, 2020
Date of Patent:
June 11, 2024
Assignee:
GM Cruise Holdings LLC
Inventors:
Robert Cao, Zoran Stefanoski, Brian Schlotterbeck, Wen-chieh Tang, Roger Lo
Abstract: A battery maintenance system includes an enclosure including a plurality of walls. A plurality of battery cells are located in the enclosure and surrounded by electrolyte. An electrolyte agitator such as a piezoelectric device is attached to at least one of the walls of the enclosure and is configured to selectively agitate the electrolyte.
Type:
Grant
Filed:
November 9, 2018
Date of Patent:
June 11, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
YiChun Yan, Dave G. Rich, Saad Hasan, Lyall K. Winger, Varsha K. Sadekar
Abstract: An autonomous vehicle configured to perform a lane change maneuver is described herein. The autonomous vehicle includes several different types of sensor systems, such as image, lidar, radar, sonar, infrared, and GPS. The autonomous vehicle additionally includes a computing system that executes instructions on a lane change detection system and a control system. The lane change detection system includes a region of interest module and an object trajectory module for determining whether the autonomous vehicle will collide with another object if the autonomous vehicle maneuvers into an adjacent lane. An instruction module of the lane change detection system is further used to facilitate operational control of a mechanical system of the autonomous vehicle, such as an engine or a steering system.
Abstract: The subject disclosure relates to solutions for arbitrating traffic blockages along vehicle routes. In some aspects, the disclosed technology encompasses a method including steps for determining a vehicle route, wherein the vehicle route comprises at least one lane plan to be followed by an autonomous vehicle (AV), identifying a blockage along the vehicle route, analyzing the blockage to determine if the blockage constitutes a persistent blockage, and if the blockage constitutes a persistent blockage, associating a time value with the blockage. Systems and machine-readable media are also provided.