Abstract: A method of making a reference electrode assembly for an electrochemical cell according to various aspects of the present disclosure includes providing a subassembly including a separator layer and a current collector layer coupled to the separator layer. The method further includes providing an electrode ink including an electroactive material, a binder, and a solvent. The method further includes creating a reference electrode precursor by applying an electroactive precursor layer to the current collector layer. The electroactive precursor layer covers greater than or equal to about 90% of a superficial surface area of a surface of the current collector layer. The electroactive precursor layer includes the electrode ink. The method further includes creating the reference electrode assembly by drying the electroactive precursor layer to remove at least a portion of the solvent, thereby forming an electroactive layer. The electroactive layer is solid and porous.
Type:
Grant
Filed:
May 24, 2022
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Jing Gao, Brian J. Koch, Zhe Li, Alfred Zhang, Gayatri V. Dadheech
Abstract: A battery includes a battery cell stack disposed within a housing such that a gap exists between the battery cell stack and an inner surface of the housing. The battery cell stack includes a plurality of battery cells that each include a positive electrode tab and a negative electrode tab electrically coupled to an electrode assembly and extending from the electrode assembly outside of a case. The positive electrode tabs and/or the negative electrode tabs of the plurality of battery cells extend into the gap between the battery cell stack and the inner surface of the housing. A filler material fills the gap and provides a thermally conductive pathway between the positive electrode tabs and/or the negative electrode tabs of the plurality of battery cells and the inner surface of the housing. The filler material includes a thermally conductive particulate component distributed throughout a polymeric matrix component.
Type:
Grant
Filed:
August 25, 2021
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Su Jung Han, David R. Clark, Ryan P. Hickey
Abstract: A system for authenticating communications from a vehicle to a remote assistance unit includes a connectivity module (CM) installed in the vehicle. A security device is adapted to transmit messages when the security device is within a predefined proximity of the CM. A security cloud unit is configured to validate the security device based in part on a first pair of complementary keys, including a first factory key stored by the security device and a second factory key stored by the security cloud unit. The first pair of complementary keys is configured for asymmetric encryption such that the first factory key is solely decryptable with the second factory key. The remote assistance unit is configured to authenticate an integrity of the CM based in part on a second pair of complementary keys which are dynamically generated by the security cloud unit.
Abstract: A vehicle seat and storage system includes a vehicle seat having a seat base and a seat back extending from the seat base. A storage apparatus is connected to the seat back and is movable from a stowed position against the seat back to an extended position away from the seat back. The storage apparatus is configured to position and secure one or more cargo items. A seat motor is operably connected to the seat. The seat motor is configured to move the seat back from a first position extending upward from the seat base to a second position where the seat back is disposed flat against the seat base.
Type:
Grant
Filed:
September 28, 2022
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Patrick Minjeur, David M. Aller, Christopher Stephen Flemming, Lisa M. Simms, John Joseph Katona, Owen Rauch, Siddhant Kansal, Zachariah Smith, Paul W. Alexander
Abstract: A quality control system analyzes the quality of a battery cell, with the battery cell defining a gas pouch configured to expand from a deflated configuration to an inflated configuration when filled with a gas formed during a cell formation process. The system comprises a computational system comprising a processor and a memory and a measurement instrument in electronic communication with the computational system. The measurement instrument is arranged to measure a distance defined by the gas pouch and transmit a signal to the computational system corresponding to the distance. The computational system is arranged to analyze the distance with the processor and determine a volumetric measurement of the gas within the gas pouch and compare the volumetric measurement to a threshold in the memory to assess a quality score for the battery cell. A corresponding method analyzes the quality of the battery cell with the quality control system.
Type:
Grant
Filed:
June 17, 2021
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Dmitriy Bruder, James R. Salvador, Raffaello Ardanese, Ryan C. Sekol, Thomas A. Yersak, Sean Robert Wagner, Ronald M Lesperance
Abstract: Method for providing parallel parking assistance including generating an augmented video stream including an overhead view video stream, a graphical representation of a host vehicle, and a first arrow for indicating an initial position of the host vehicle, generating, by a processor, a first control signal indicative of a first steering angle in response to receiving a first confirmation signal from a user interface indicative of a confirmation of the initial position of the host vehicle, generating, by the processor, a second control signal indicative of a second steering angle in response to a change in yaw reaching a first desired yaw, generating, by the processor, a second arrow to be overlaid on the overhead view video stream indicative of a distance between the host vehicle and a curb, generating, by the processor, a third control signal indicative of a third steering angle in response to receiving a second confirmation signal from the user interface indicative of a confirmation of the distance between
Type:
Grant
Filed:
April 12, 2023
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Magdalena M Parkila, Avesta Goodarzi, Norman J Weigert, Michael J Bliss
Abstract: A system for coating a separator for a battery includes a separator feed and collection assembly configured to dispense the separator, a coating distribution device configured to flow a coating material toward the separator, and an electric field generator configured to generate an electric field in a gap between the coating distribution device and the separator.
Abstract: A system for evaluating a rigidity of an angle bracket includes a test system having a first test fixture and a second test fixture. The system includes an angle bracket coupon including a first wall, a second wall coupled to the first wall at a bend to define an angle between the first wall and the second wall, and at least one three dimensional feature defined at the bend that extends between the first wall and the second wall. The angle bracket coupon is to be coupled to at least one of the first test fixture and the second test fixture to evaluate the rigidity of the angle bracket.
Type:
Grant
Filed:
November 30, 2021
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Joshua Lee Solomon, Hui-ping Wang, Bradley J Blaski, Vivian Vasquez, Lu Huang, Dohyun Leem, Jian Cao
Abstract: A system comprises a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: receive metadata and results including at least one data transmission constraint, perform a search of a k-d tree based on the at least one data transmission constraint, and select at least one data compression process from the k-d tree based on the search. The k-d tree includes a plurality of nodes corresponding to data compression solutions.
Type:
Grant
Filed:
February 25, 2022
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Shu Chen, Jinzhu Chen, Donald K. Grimm, Mahesh Pottelu
Abstract: A method includes receiving sensor data from a plurality of sensors of a plurality of vehicles. The sensor data includes vehicle GPS data and sensed lane line data of the roadway. The method further includes creating a plurality of multi-layer bitmaps for each of the plurality of vehicles using the sensor data, fusing the plurality of the multi-layer bitmaps of each of the plurality of vehicles to create a fused multi-layer bitmap, creating a plurality of multi-layer probability density bitmaps using the fused multi-layer bitmap, extracting lane line data from the plurality of multi-layer probability density bitmaps, and creating the high-definition (HD) map of the roadway using the multi-layer probability density bitmaps and the lane line data extracted from the plurality of multi-layer probability density bitmaps.
Type:
Grant
Filed:
August 24, 2022
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Bo Yu, Joon Hwang, Gui Chen, Carl P. Darukhanavala, Vivek Vijaya Kumar, Shu Chen, Donald K. Grimm, Fan Bai
Abstract: In accordance with an exemplary embodiment, a system is provided that includes a sensor system configured to generate sensor data associated with a seat of a vehicle; and a processor communicatively coupled to the sensor system and configured to determine, from the sensor data, a baseline position of a child seat sitting on the seat of the vehicle, determine, from the sensor data, a displacement of the child seat from the baseline position, and selectively generate notification data based on the displacement.
Type:
Grant
Filed:
November 16, 2021
Date of Patent:
October 8, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Praneeth Nelapati, Jeffrey A Clark, Sean Taylor Coughlin
Abstract: A system for determining calibrated camera extrinsic parameters for an autonomous vehicle includes a camera mounted to the autonomous vehicle collecting image data including a plurality of image frames. The system also includes one or more automated driving controllers in electronic communication with the camera that executes instructions to determine a vehicle pose estimate based on position and movement of the autonomous vehicle by a localization algorithm. The one or more automated driving controllers determine the calibrated camera extrinsic parameters based on three dimensional coordinates for specific feature points of interests corresponding to two sequential image frames, the specific feature points of interests corresponding to the two sequential image frames, and the camera pose corresponding to the two sequential image frames.
Abstract: A system in a vehicle includes memory to store driving history and charging history of the vehicle. The system also includes a processor to obtain a predicted battery life of one or more battery packs of the vehicle based on the driving history and the charging history, obtain a targeted battery life of a user indicating a mileage goal for a specific charge capacity of the one or more battery packs, and determine a difference between the predicted battery life and the targeted battery life. The processor solves an optimization problem to determine a future charging strategy to achieve the targeted battery life and controls an onboard charging system or an external charger based on the future charging strategy or controls routing or navigation based on the future charging strategy.
Abstract: A process for local traffic approximation through analysis of cloud data is provided. The process includes, within a computerized traffic flow estimation controller of a host vehicle, operating programming to monitor a planned navigational route of the host vehicle, identify along the planned navigational route a road section including cross-traffic, monitor cloud data related to a mobile cellular device, analyze the cloud data to identify traffic posing a hazardous condition to the host vehicle within the road section, and generate a vehicle alert to a driver of the host vehicle based upon the identified traffic.
Type:
Grant
Filed:
February 19, 2020
Date of Patent:
October 8, 2024
Assignee:
GM Global Technology Operations LLC
Inventors:
Prakash Mohan Peranadam, Mohamed A. Layouni, Meng Jiang, Shengbing Jiang, Jiyu Zhang, Erik B. Golm