Abstract: A design for repair casting having a repairable ultra-large single-piece casting and a replacement part. The ultra-large single-piece casting includes a main body portion, at least one predefined replaceable portion integrally cast with the main body portion, and a cut-guide delineating the predefined replaceable portion from the main body portion. The cut-guide includes a continuous channel defined on an exterior surface of the single-piece casting. The cut-guide further includes a rib extending from a channel wall on the main body portion. A damaged replaceable portion is excisable from the main-body portion by cutting through the single-piece casting along the cut-guide. The excised damaged replaceable portion may be replaced with the replacement part, which has substantially the same geometry, dimensions, and mechanical properties as an undamaged replaceable portion. The replacement part may be joined to the main body portion by mechanical means or by welding.
Type:
Grant
Filed:
May 3, 2022
Date of Patent:
September 24, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Daniel J. Wilson, Liang Wang, Qigui Wang, Devin R Hess, Michelle A. Wood, Ronald C. Daul, Ali Shabbir
Abstract: An optically transparent coplanar microwave slot antenna formed between a first glass layer and a second glass layer is provided including a metal oxide layer, a first slot element and a second slot element formed in a dipole arrangement within the metal oxide layer wherein the first slot element is formed by a first triangular slot, a first trapezoidal slot, and a first rectangular slot and the second slot element is formed by a second triangular slot, a second trapezoidal slot, and a second rectangular slot, and a waveguide feedline for carrying microwave signals to the first slot element and the second slot element.
Type:
Grant
Filed:
September 9, 2022
Date of Patent:
September 24, 2024
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Sara Kaffash, Farhad Sheikh Hosseini Lori, William Hsiahua Wang, Hongguang Sun
Abstract: A system for multi-mode connectivity for group vehicle activity and for over-the-air updates via time synchronized device-to-device side-link communications is provided. The system includes a remote communication device configured to transmit data, vehicles to receive the data, and a computerized controller. The controller includes programming to analyze hardware of the vehicles to identify alpha vehicles including excellent wireless capabilities, monitor signal strength between the vehicles and the remote communication device to identify vehicles including relatively strong communication strength, and determine a portion of the plurality of vehicles including highly functioning vehicles including the capabilities and communication strength. The controller generates a series of data transfers to first transfer the data from the remote communication device a highly functioning vehicle and subsequently transfer the data from the highly functioning vehicle to a second of the vehicles and transfers the data.
Type:
Grant
Filed:
August 8, 2022
Date of Patent:
September 24, 2024
Assignee:
GM Global Technology Operations LLC
Inventors:
Venkata Naga Siva Vikas Vemuri, Scott T. Droste, Andrew J. MacDonald, Sitaram Emani, Ashhad Mohammed
Abstract: Method for sensor alignment including detecting a depth point cloud including a first object and a second object, generating a first control point in response to a location of the first object within the depth point cloud and a second control point in response to a location of the second object within the depth point cloud, capturing an image of a second field of view including a third object, generating a third control point in response to a location of the third object detected in response to the image, calculating a first reprojection error in response to the first control point and the third control point and a second reprojection error in response to the second control point and the third control point, generating an extrinsic parameter in response to the first reprojection error in response to the first reprojection error being less than the second reprojection error.
Type:
Application
Filed:
March 14, 2023
Publication date:
September 19, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Yousef A. Omar, Hongtao Wang, Hao Yu, Wende Zhang
Abstract: A sensor alignment method including detecting, detecting an object within a first sensor field of view and a second sensor field of view, detecting a plurality of depth point clouds of the first field of view in response to the object being stationary, the host vehicle being stationary, and the distance between the object and the host vehicle being less than a threshold distance, aggregating the plurality of depth point clouds into an aggregated depth point cloud, detecting a first location of an edge of the object in response to the aggregated depth point cloud, detecting a second location of the edge of the object using an edge detection algorithm on the image, generating a lidar to camera alignment in response to a difference between the first location and the second location.
Abstract: A system for enhanced satellite communication coverage via an unmanned aerial vehicle (UAV). The system may include a satellite configured for orbiting Earth, a vehicle configured for ground transportation on Earth, and an unmanned aerial vehicle (UAV) operable for relaying communication signals between the vehicle and the satellite. The system may be configured for transmitting control instructions to the UAV for controlling aerial positioning of the UAV relative to the vehicle and the satellite. The control instructions may specifying a roll, a pitch, and a yaw for orientating the UAV to point towards the satellite.
Type:
Application
Filed:
March 14, 2023
Publication date:
September 19, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Matthew E. Gilbert-Eyres, Eric T. Hosey, Russell A. Patenaude, Scott T. Droste
Abstract: A system for unsupervised radar calibration of a vehicle is contemplated. The system may include a radar having a plurality of antennas configured to transmit radar signals and responsively receive reflected signals. The system may further include a calibration controller configured to determine a plurality of detections from the reflected signals corresponding with unsupervised objects in the vicinity of the vehicle, and based on the detections, to generate a calibration matrix sufficient for calibrating the radar.
Abstract: Presented are charger coupler locking systems with control logic for managing vehicle charging, methods for making/using such systems, and vehicles equipped with such systems. A method of controlling charging of a vehicle includes a vehicle controller receiving a signal indicating a charger coupler of a vehicle charging system is inserted into a charger port of the vehicle and, when received, responsively commanding an actuator device of a coupler locking system to move a locking element against a latching element of the charger coupler. The controller then receives sensor data from a position sensing device indicative of a travel position of the locking element; from this sensor data, the controller determines if the locking element's travel position is displaced from a predefined lock position at which the locking element contacts the latching element. If so, the controller responsively commands the vehicle's battery charging system to disable charging of the battery assembly.
Abstract: Methods and systems are provided that include one or more sensors configured to obtain sensor data pertaining to both a driver of a vehicle and an environment surrounding the vehicle; and a processor that is coupled to the one or more sensors and that is configured to at least facilitate determining, using the sensor data, when the driver is incapacitated; determining, using the sensor data, when a threat is detected for the vehicle; and taking action to avoid the threat when the driver is incapacitated and the threat is detected, via instructions provided by the processor.
Type:
Application
Filed:
March 14, 2023
Publication date:
September 19, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Khizar Ahmad Qureshi, Mehdi Abroshan, Reza Zarringhalam, Mohammadali Shahriari, Apral Singh Hara
Abstract: A battery cell is provided. The battery cell includes an external container and an electrode stack disposed within the external container. The electrode stack includes at least one pair of an anode and a cathode. The battery cell further includes an electrolyte disposed within the external container and an O2 scavenger material disposed within the external container. The O2 scavenger material is configured for absorbing oxygen gas generated within the electrode stack.
Type:
Application
Filed:
March 14, 2023
Publication date:
September 19, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Meng Jiang, Louis G. Hector, Jr., Erik B. Golm, Meinan He, Yangbing Zeng
Abstract: A method, apparatus, and control system are described for operating a multiphase motor drive system including a rotary electric machine and an inverter. An AC choke filter is arranged proximal to output leads from the inverter. A reference temperature associated with the AC choke filter is determined along with an operating point of the electric machine. Operation of the inverter is controlled based upon a temperature of the AC choke filter, the reference temperature, and an operating point of the electric machine. This includes modifying a switching frequency and a PWM type in a manner that reduces the AC choke filter temperature by reducing the occurrence of switching events to protect the AC choke filter based on temperature feedback.
Type:
Application
Filed:
March 13, 2023
Publication date:
September 19, 2024
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Brent S. Gagas, Kerrie M. Spaven, Brian J. Gallert, Daniel J. Berry, Brian A. Welchko
Abstract: Methods and systems are provided for controlling an autonomous vehicle. In one embodiment, a method includes: identifying, by a processor, at least one constraint on a longitudinal dimension of an upcoming road; defining, by the processor, constraint activation logic based on a type of the at least one constraint; performing, by the processor, the constraint activation logic to determine a state of the constraint to be at least one of active and inactive; when the state of the constraint is active, validating, by the processor, a motion plan of the autonomous vehicle based on the constraint; and selectively controlling the autonomous vehicle based on the validating of the motion plan.
Abstract: A thermal barrier component for an electrochemical cell according to various aspects of the present disclosure includes a functional material. The functional material includes at least one of a hydrate of a metal carbonate and a hydrate of a metal phosphate. The functional material is configured to release water vapor at a first temperature of greater than or equal to about 100° C. and decompose to release a gaseous fire retardant at a second temperature of greater than or equal to about 300° C. Another thermal barrier component according to various aspects of the present disclosure includes a hydrate and a fire retardant. The hydrate is configured to release water in an amount greater than or equal to about 1 kg at a first temperature of greater than or equal to about 100° C. The fire retardant is configured to decompose at a second temperature of greater than or equal to about 300° C.