Abstract: A method and system for distributed publisher-subscriber event communication. The distributed publisher-subscriber event communication may include determining a first event published with a first service operating on a first device, determining a second device subscribing to the first event, unicasting the first event from the first device to the second device, determining a plurality of second applications operating on the second device subscribing to the first event, and multicasting the first event received at the second device to each of the second applications.
Type:
Application
Filed:
December 2, 2022
Publication date:
June 6, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Steven Hartley, Frank Ghenassia, Manohar S. Nemilikonda
Abstract: An electronic control unit (ECU), or node, is configured to use a single key for all virtual ECUs (V-ECUs) having a message to transmit. The ECU also may include a security peripheral that includes the stored shared key. The security peripheral may further include a policy enabling it to detect if a request from the V-ECU is valid, in which case it generates a MAC. The security peripheral is also used to store information in a MAC Generate Allow List (MGAL), which may define the policy about when the V-ECU can transmit. The ECU may include a crypto-engine, which stores shared keys from other nodes used to verify MACs transmitted by other nodes.
Abstract: In exemplary embodiments, methods and systems are provided that include or utilize one or more automotive equipped cameras and a processor. The one or more automotive equipped cameras are configured to be onboard a vehicle and to obtain camera images during operation of the vehicle, the camera images including a view of one or more wheels of the vehicle. The processor is coupled to the one or more cameras, and is configured to at least facilitate: processing the camera images; and determining one or more states of the one or more wheels, including an alignment thereof, a health thereof, or both, based on the processing of the camera images.
Type:
Application
Filed:
December 5, 2022
Publication date:
June 6, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Sai Vishnu Aluru, Steffen P. Lindenthal, Sravan Daruri
Abstract: A method of reforming a negative electrode layer of a secondary lithium battery may include execution of a reforming cycle that reforms a major facing surface of the negative electrode layer by eliminating at least a portion of a lithium dendrite or other lithium-containing surface irregularity that has formed on the major facing surface of the negative electrode layer.
Type:
Grant
Filed:
June 21, 2021
Date of Patent:
June 4, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Jing Gao, Xingcheng Xiao, Brian J. Koch
Abstract: A system for providing quality of experience (QoE) metrics to incoming application data transferred to a vehicle includes a cloud-based dynamically updatable application QoE policy engine adapted to establish QoE metrics and prioritization criteria for incoming application data and to assign QoE policies to the vehicle, and a data controller within the vehicle adapted to receive QoE policies from the application QoE policy engine and enforce the QoE policies assigned, wherein the data controller is adapted to enforce the QoE policies assigned with an enhanced distributed control access (EDCA) algorithm adapted to prioritize incoming application data traffic received via IEEE 802.11 standard supported wireless LAN technology channels and with a resource block allocation and network slicing (RAN) algorithm adapted to prioritize incoming application data traffic received via cellular channels.
Type:
Grant
Filed:
December 13, 2022
Date of Patent:
June 4, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Fan Bai, Lakshmi V. Thanayankizil, John Sergakis
Abstract: A holographic projection system including first, second and third light sources, SLMs, a lens, a combiner and a control module. The first, second and third light sources generate respective light beams. The light beams have respective wavelengths. The SLMs respectively diffract the light beams. The lens is disposed to adjust a divergence angle of one of the light beams, such that diffracted light out of each of the SLMs is at a same diffraction angle. The SLMs encode phase holograms including respective versions of a graphic image based on light generated by the light sources including light output from the lens to provide phase hologram beams. The combiner combines the phase hologram beams to provide a combined phase hologram beam projected for viewing a combined graphic image. The control module encodes a prism hologram on one of the SLMs to align outputs of the SLMs.
Abstract: A clearance risk detection system is provided in a vehicle. The clearance risk detection system is configured to: identify a terrain object in a vehicle travel path; classify the terrain object based on whether the host vehicle can clear the terrain object or cannot clear the terrain object; provide a first indicator that indicates that the host vehicle can clear the terrain object when appropriate; provide a second indicator that indicates that the host vehicle can clear the terrain object with a suggested raising of vehicle ride height when appropriate; automatically raise the vehicle ride height when appropriate; and provide a third indicator that indicates that the host vehicle cannot clear the terrain object even with raising vehicle ride height when appropriate.
Type:
Grant
Filed:
February 1, 2023
Date of Patent:
June 4, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Dustin Howard Malcom Smith, Sai Vishnu Aluru, Timothy D Demetrio
Abstract: A system for controlling propulsion in a vehicle includes a switching system connected to a battery system and a propulsion system. The battery system includes a first battery assembly and a second battery assembly, the propulsion system includes a first drive unit and a second drive unit, and the switching system includes a first switching device configured to selectively connect the first drive unit to the battery system and a second switching device configured to selectively connect the second drive unit to the battery system. The first switching device and the second switching device are independently operable. The system also includes a controller configured to operate the switching system to vary a voltage applied to at least one of the first drive unit and the second drive unit during vehicle propulsion.
Type:
Grant
Filed:
November 8, 2022
Date of Patent:
June 4, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Orgun A. Guralp, Suresh Gopalakrishnan, Chandra S. Namuduri, Chunhao J. Lee, Muhammad Hussain Alvi
Abstract: A system for an electric vehicle includes a hysteresis module configured to calculate a plurality of hysteresis state components of a battery based on a measured current and a respective hysteresis transit rate, calculate an overall hysteresis state of the battery based on the plurality of hysteresis state components, and calculate a hysteresis voltage of the battery based on the overall hysteresis state, and a state of charge (SOC) module configured to calculate an SOC of the battery based in part on the hysteresis voltage.
Abstract: A vehicle including a passenger compartment and a cargo area extending from the passenger compartment. The cargo area includes a cargo bed having a support surface. A mid-gate includes a first surface exposed to the passenger compartment and a second surface exposed to the cargo area. The mid-gate is pivotally connected relative to the cargo bed between a first position wherein the mid-gate separates the cargo area from the passenger compartment and a second position wherein the second surface forms part of the support surface.
Abstract: A system includes a current sensor disposed proximate to a first conductor of a conductor assembly, the current sensor configured to measure a current through the first conductor and generate a first current measurement. The system also includes a correction module configured to perform a correction method. The correction method includes determining a frequency of the first current measurement, and applying a gain correction factor to the first current measurement, the gain correction factor based on pre-characterization data relating a gain of a reference current sensor to frequency. In addition, or alternatively, the correction method includes determining a first phase of the first current measurement, acquiring a second current measurement of a second conductor of the conductor assembly, determining a second phase of the second current measurement, and applying a current adjustment to the first current measurement based on a temporal relationship between the first phase and the second phase.
Type:
Grant
Filed:
July 20, 2022
Date of Patent:
June 4, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Muhammad Hussain Alvi, Suresh Gopalakrishnan
Abstract: A method for end-to-end event flows includes storing a file associated with a source event at a source storage location in a source edge device, uploading the file to a cloud device, storing the file at a cloud storage location, generating a cloud event by changing a file path referenced in the source event to point to the cloud storage location of the file, and transferring the cloud event to the cloud device. The method includes transferring the cloud event to a destination edge device, downloading the file to the destination edge device, generating a destination event by changing the file path referenced in the cloud event to point to a destination storage location of the file, publishing an availability of the file in the destination edge device to multiple destination subscribers, and transferring the file from the destination storage location to one or more destination subscribers.
Abstract: Methods and systems are provided for improving a Driver Monitoring System (DMS) of a vehicle. The system includes a controller in operable communication with the DMS of the vehicle. The controller is configured to, by a processor: receive a signal from the DMS that a camera of the DMS is unable to monitor a driver of the vehicle, determine a cause of the camera being unable to monitor the driver, and adjust an escalation algorithm of the DMS based on the determined cause of the camera being unable to monitor the driver. The escalation algorithm is configured to perform actions based on activity of the driver.
Type:
Application
Filed:
November 28, 2022
Publication date:
May 30, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Milad Jalaliyazdi, Peitong Hu, Parisa Mahvelatishamsabadi, Reza Zarringhalam, Kurt L. Fischer
Abstract: A supervisory computer is used with an energy management system of an electric vehicle. The energy management system includes a battery system having a plurality of battery subsystems. One of the battery subsystems is an abnormal battery subsystem while the remaining battery subsystems are normal battery subsystems. The supervisory computer includes at least one processor and at least one non-transitory computer-readable medium. The processor monitors the remaining state of charge, capacity, and resistance of the battery system and monitor the remaining state of charge and capacity of the abnormal battery subsystem, calculate a low integration bound value, calculate a remaining energy value for all of the normal battery subsystems with respect to the low integration value, calculate a remaining energy value for the abnormal battery subsystem, and summate the remaining energy values of the normal and abnormal battery subsystems to determine a global remaining energy value for the battery system.
Type:
Grant
Filed:
July 28, 2021
Date of Patent:
May 28, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Yue-Yun Wang, Garrett M. Seeman, Alfred Zhang
Abstract: A method to manufacture a ceramic foam filter includes: sintering a filter body to a temperature greater than a molten metal to be filtered through the body; creating multiple tortuous path channels extending through the filter body individually having a repeated and controlled passage geometry creating a continuously changing diameter and area of a flow path through the multiple tortuous path channels causing localized increases and decreases in molten metal flow rate through the multiple tortuous path channels; and applying a mixture of at least one ceramic powder and at least one binder using additive manufacturing to shape the filter body including the multiple tortuous path channels.
Type:
Grant
Filed:
May 4, 2021
Date of Patent:
May 28, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Qigui Wang, Andrew Thomas Cunningham, Zach Steffes, Jeffrey B. Harris, Brennon L. White, Liang Wang
Abstract: A method of forming a balancing scallop within a rotating part, including inspecting the rotating part for imbalance, calculating dimensions of the balancing scallop to be formed within the rotating part, positioning the rotating part relative to a material removal machine, starting the tool removal machine, bringing the rotating part and a tool of the material removal machine into engagement, forming a first section of the balancing scallop, forming a second section of the balancing scallop, forming a third section of the balancing scallop, and dis-engaging the rotating part and the tool of the material removal machine.
Type:
Grant
Filed:
September 29, 2020
Date of Patent:
May 28, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Vanessa Dongmo Kenfack, Dan J. Martin, Rodney C. Malone, Mithun Sunny, Yew Sum Leong