Abstract: The present disclosure provides electrode assemblies for safe nondestructive testing in ambient conditions. In certain variations, the electrode assembly includes a current collector and a non-reactive lithium mimic material disposed on or near one or more surfaces of the current collector or embedded in the current collector. In other variations, the electrode assembly includes include a current collector, a lithium metal material disposed on or near one or more surfaces of the current collector or embedded in the current collector to form an electrode assembly, and a non-conductive pouch holding the electrode assembly.
Type:
Application
Filed:
October 23, 2022
Publication date:
April 25, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Robin JAMES, Megan E. MCGOVERN, Dmitriy BRUDER, Whitney Ann POLING, Erik Damon HUEMILLER, Shaomao XU, Caleb REESE
Abstract: Method of using a vehicle to alert to potential risks includes determining that a user of the vehicle will be absent; determining an estimated absence time; and sending an alert to authorities, via a control system, if the user does not return within the estimated absence time. The method may include receiving the estimated absence time from the user, or the control system of the vehicle determines the absence and the estimated absence time. The user may define the absence and input the estimated absence time through a centralized location, such that the alert is sent from the centralized location. Following expiration of the estimated absence time, detecting a pedestrian near the vehicle, and then playing a pre-recorded emergency message through speakers, such that the pedestrian is made aware of the pre-recorded emergency message. Vehicle lights/horn may operate to guide the user, possibly in decaying fashion.
Type:
Application
Filed:
October 20, 2022
Publication date:
April 25, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Russell A. Patenaude, Michael A. Gutierrez
Abstract: Methods and systems are provided for displaying a scene for a vehicle towing a trailer. A method includes: determining, by the processor, an angle of the trailer relative to the vehicle; determining, by the processor, a simulated trailer based on the angle of the trailer; determining, by the processor, a projection matrix based on the simulated trailer; generating, by the processor, scene data based on image data from a camera of the vehicle and image data from a camera of the trailer using the projection matrix; and generating, by the processor, display data to display the scene to an occupant of the vehicle based on the scene data.
Abstract: An electrode assembly includes a current collector, a lithium metal foil, and an alloyed interface that chemically binds the current collector and the lithium metal foil. In certain variations, the alloyed interface includes an intermediate layer disposed between the current collector and the lithium metal foil, a portion of the current collector adjacent to the intermediate layer is alloyed with the indium, gallium, or alloy of indium and gallium defining the intermediate layer, and a portion of the lithium metal foil adjacent to the intermediate layer is alloyed with the indium, gallium, or alloy of indium and gallium defining the intermediate layer. In other variations, the alloyed interface includes a copper-lithium alloy.
Type:
Application
Filed:
October 20, 2022
Publication date:
April 25, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Diptak BHATTACHARYA, Caleb REESE, Thomas E. MOYLAN, Andrew Clay BOBEL, Anil K. SACHDEV
Abstract: Presented are hybrid fixture assemblies with integrated additive manufactured features, methods for making/using such fixtures, and manufacturing systems equipped with such fixtures. A manufacturing fixture assembly includes a fixture support frame formed, at least in part, from a first material, and a fixture support shell formed, at least in part, from a second material distinct from the first material. The support frame, which seats on/mounts to a work surface, includes a skeletal substructure with multiple male connectors projecting therefrom. The skeletal substructure contains multiple first frame walls that are removably intermeshed with multiple second frame walls in a collapsible format. The support shell includes a support surface that holds a workpiece, an interface surface that abuts the skeletal substructure, and multiple female connectors that project from the interface surface.
Type:
Application
Filed:
October 19, 2022
Publication date:
April 25, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Andrew Thomas Cunningham, Ali Shabbir, Hassan Ajami, Ibrahim El Khatib
Abstract: A method of notifying an owner of a lost item in a vehicle having a vehicle compartment is provided. The method comprises providing at least one sensor to sense the lost item in the vehicle compartment. The method further comprises sensing the lost item on a point relative to a spherical coordinate system to define a sensed item data and determining a position of the lost item in cartesian coordinates based on the sensed item data to define a position data. The method further comprises translating the sensed item data and the position data for visualization of the lost item to define an item image of the lost item relative to the vehicle compartment, and updating an inventory list of lost objects to include the lost item with the item image. The method further comprises identifying the owner of the lost item by way of a perception algorithm, providing notification to the owner of the lost item, and providing viewable access of the item image such that the image is viewed by the owner of the lost item.
Type:
Grant
Filed:
January 28, 2022
Date of Patent:
April 23, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Ke Liu, Jingyan Wan, Ron Hecht, Omer Tsimhoni
Abstract: A propulsion control system has an electric motor configured to generate an axle torque in response to a final torque command, and has a motor constraint that specifies a maximum torque. A motor controller is configured to generate the final torque command in response to an intermediate torque command and a distributed power limit command. An open-loop function in supervisory controller is configured to calculate an initial torque command vector in response to a driver torque command, calculate an intended operating vector by mapping the initial torque command vector into a multidimensional power space, generate the intermediate torque command by clipping the intended operating vector in response to the motor constraint, generate a constrained command vector by clipping the intended operating vector in response to the motor constraint and a plurality of energy storage constraints, and generate the distributed power limit command in response to the constrained command vector.
Type:
Grant
Filed:
January 19, 2021
Date of Patent:
April 23, 2024
Assignee:
GM Global Technology Operations LLC
Inventors:
Rashad K. Maady, Krunal P. Patel, Matthew Yard, Kristopher D. Lang
Abstract: One general aspect includes a system having a memory configured to include one or more executable instructions and a processor configured to execute the executable instructions, where the executable instructions enable the processor to estimate a rate of change of a hitch angle between a trailer and vehicle, the estimated rate of change of the hitch angle being based on a turn angle for a plurality of rear wheels of the vehicle as well as a speed of the vehicle.
Type:
Grant
Filed:
June 3, 2020
Date of Patent:
April 23, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Sepehr Pourrezaei Khaligh, Akram M. Abdel-Rahman
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.
Abstract: A vehicle, and a system and method for operating the vehicle. The system includes a sensor and a processor. The sensor obtains a detection set related to an object at a range from the vehicle. The processor is configured to select a convolution path for the detection set based on a range of the object, wherein the convolution path includes one or more convolutional layers and a number of the one or more convolutional layers is dependent on the range of the object, apply the one or more convolutional layers of the selected convolution path to the detection set to generate a filtered data set, and operate the vehicle with respect to the object using the filtered data set.
Abstract: A compressor system includes a compressor housing including an inlet opening and a diffuser outlet, the compressor housing includes a first recirculation passage extending from the diffuser outlet to a mounting face of the compressor housing. The compressor housing defines a cavity that receives a compressor wheel. An inlet adapter is mounted to the mounting face of the compressor housing and the inlet adapter includes a second recirculation passage in communication with the first recirculation passage in the compressor housing and with a compressor air inlet passage of the inlet adapter. A recirculation valve is mounted to the inlet adapter and is disposed in communication with the second recirculation passage for providing a selective connection of the first recirculation passage to the compressor air inlet passage.
Abstract: A cabinet includes a locking system having a cabinet body including a bottom wall, a top wall, a first side wall, a second, opposing side wall, and a third side wall connected to the bottom wall, the top wall, and between the first side wall and the second side wall. At least one door is pivotally mounted to the cabinet body. The at least one door, bottom wall, top wall, first side wall, second side wall, and third side wall define a storage volume. A lock mechanism including a latch and release element is pivotally mounted inside the storage volume. The latch and release element is accessible only in the storage volume. A lock opening extends through the cabinet body at the lock mechanism. A lock element is insertable through the lock opening. The lock element includes a latch receiver that is selectively engageable by the latch and release element.
Type:
Grant
Filed:
August 3, 2021
Date of Patent:
April 23, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
George Floarea, David Akl, Jonathan Wood
Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.
Type:
Grant
Filed:
February 25, 2021
Date of Patent:
April 23, 2024
Assignee:
GM Global Technology Operations LLC
Inventors:
James C. Gibbs, Andrew M. Zettel, Calvin Goodman, Rajesh Nagappala
Abstract: A calibration pipeline for 6DoF alignment parameters for an autonomous vehicle includes an automated driving controller instructed to receive inertial measurement unit (IMU) poses and final radar poses and determine smoothened IMU poses from the IMU poses and smoothened final radar poses from the final radar poses. The automated driving controller aligns the smoothened IMU poses and the smoothened final radar poses with one another to create a plurality of radar-IMU A, B relative pose pairs. The automated riving controller determines a solution yielding a threshold number of inliers of further filtered radar-IMU A, B relative pose pairs, randomly samples the further filtered radar-IMU A, B relative pose pairs with replacements several times to determine a stream of filtered radar-IMU A, B relative pose pairs, and solves for a solution X for the stream of filtered radar-IMU A, B relative pose pairs.
Abstract: A battery cathode includes: a current collector; and a coating applied to the current collector, the coating including: conductive carbon; polyvinylidene fluoride binder polymer; acid-functionalized dispersant polymer; and electrochemically active layered metal oxide.
Type:
Grant
Filed:
November 23, 2022
Date of Patent:
April 23, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Bradley R Frieberg, Mengyuan Chen, Roland J. Koestner, Xiaosong Huang