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:
Application
Filed:
November 30, 2021
Publication date:
June 1, 2023
Applicants:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Northwestern University
Inventors:
Joshua Lee Solomon, Hui-ping Wang, Bradley J. Blaski, Vivian Vasquez, Lu Huang, Dohyun Leem, Jian Cao
Abstract: A method for controlling an electric drive unit (EDU) having a motor-driven torque converter includes receiving a request signal indicative of a requested output torque of the EDU, and operating the motor at a target motor speed using the requested output torque. The target motor speed minimizes system losses while achieving the requested output torque. When the requested output torque remains below a calibrated threshold and a turbine speed is less than a corner speed of the motor, a torque converter clutch (TCC) transitions to or remains in a locked state. The controller commands the TCC to transition to an unlocked state to reach the target motor speed, thereby selectively enabling torque multiplication. A powertrain system includes a driven load and the EDU. A computer readable storage medium may include executable instructions for performing the method.
Type:
Application
Filed:
December 27, 2021
Publication date:
June 1, 2023
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Norman K. Bucknor, Chunhao J. Lee, Dongxu Li, Lei Hao, Chengwu Duan
Abstract: An electrified drivetrain system that maximizes power density, is readily packaged, and improves drivability is described. It includes a propulsion system having an axial-flux rotating electric machine, a torque converter having a selectable one-way clutch, and an output member that is couplable to a drivetrain. The axial-flux rotating electric machine include a first rotor coaxially arranged with a first electric stator. The torque converter includes a fluidic stator, a pump, a turbine and a torque converter clutch. The axial-flux rotating electric machine is arranged coaxially with the torque converter. The first rotor of the axial-flux rotating electric machine is coupled to the pump of the torque converter, and the turbine of the torque converter is rotatably coupled to the output member.
Type:
Application
Filed:
December 23, 2021
Publication date:
June 1, 2023
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Chengwu Duan, Jian Yao, Lei Hao, Dongxu Li, Chunhao J. Lee, Norman K. Bucknor
Abstract: A system for a power take-off mechanism for a powertrain system is provided. The system includes an electrically powered torque generating device including a torque generating device output shaft and a transmission output shaft receiving mechanical power from the torque generating device output shaft. The system further includes a clutch selectively disengaging the transmission output shaft from the torque generating device output shaft and a power take-off module receiving mechanical power from the torque generating device.
Type:
Application
Filed:
December 27, 2021
Publication date:
June 1, 2023
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Dongxu Li, Chengwu Duan, Norman K. Bucknor, Chunhao J. Lee, Lei Hao
Abstract: A method is described and includes acquiring sensor data produced by sensors of a plurality of vehicles traversing an area including a location of a user, wherein the vehicles traversing the area comprise a subset of a fleet of vehicles for providing rideshare services; processing the acquired sensor data to determine a category of the user; selecting a vehicle from the fleet of vehicles based on the category of the user, wherein the selected vehicle comprises at least one accommodation corresponding to the category of the user; and dispatching the selected vehicle to a pick-up location designated by the user.
Type:
Application
Filed:
December 16, 2021
Publication date:
June 1, 2023
Applicant:
GM Cruise Holdings LLC
Inventors:
Kunal Mehta, Nikola Noxon, Devina Jain, Curt Patrick Harrington, Kelan Fitzgerald Stoy, Edward Henry Forscher, Michael John Mehallow
Abstract: A communication system for a vehicle includes an assistance mode for communication between a user of the vehicle and a remote assistance unit. The assistance mode is activable during a concerning situation. The assistance mode includes multiple pre-coded subroutines selectively executable to provide audio instruction and video instruction to the user, via a display in the vehicle. The multiple pre-coded subroutines are triggered by the remote assistance unit. Operating the assistance mode includes relaying of selected data from the vehicle to the remote assistance unit. The selected data includes actions performed by the user. The assistance mode is activable by at least one of the remote assistance unit, the user via the user interface, and the vehicle. The communication system may include a controller adapted to at least partially execute the assistance mode.
Type:
Application
Filed:
December 1, 2021
Publication date:
June 1, 2023
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Matthew E. Gilbert-Eyres, Russell A. Patenaude, Eric T. Hosey, Matthew Neely
Abstract: A system for bypassing a torque converter in a powertrain is provided. The system includes a torque generating device including an output shaft and a transmission assembly. The transmission assembly includes a transmission output shaft and a torque converter, a torque converter bypass shaft. The transmission assembly further includes a disconnect clutch selectively coupling the torque converter with the torque generating device and a torque converter clutch selectively coupling the torque converter bypass shaft with the torque generating device. Engaging the disconnect clutch and disengaging the torque converter clutch enables the torque generating device to transmit torque to the transmission output shaft through the torque converter. Engaging the torque converter clutch and disengaging the disconnect clutch enables the torque generating device to transmit torque to the transmission output shaft through the torque converter bypass shaft.
Type:
Application
Filed:
December 27, 2021
Publication date:
June 1, 2023
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Dongxu Li, Chengwu Duan, Norman K. Bucknor, Chunhao J. Lee, Lei Hao
Abstract: Systems, Methods, and Apparatuses are provided for monitoring cable connections between a trailer and vehicle. The system includes a monitoring device disposed within the vehicle; and a trailer cable and a breakaway trailer cable that provide a set of cable connections, the monitoring device is configured to: monitor the set of cable connections from connection data generated by a set of multimodal sensors integrated with the vehicle about statuses of the cable connections between the trailer and the vehicle; initiate a monitor function upon detection of a presence of the trailer connected to the vehicle by at least one sensor of the set of multimodal sensors integrated with the vehicle; and determine the statuses of the cable connections by fusing together using an information fusion algorithm one or more types of signal data from the set of multimodal sensors comprising optical signal data, radio signal data, and range signal data.
Type:
Application
Filed:
November 30, 2021
Publication date:
June 1, 2023
Applicant:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Alaa M. Khamis, Yun Qian Miao, Ralph David Schlottke
Abstract: A system and method for error estimation in an eye gaze tracking system in a vehicle may include an operator monitoring system providing measured eye gaze information corresponding to an object outside the vehicle and an external object monitoring system providing theoretical eye gaze information and an error in the measured eye gaze information based upon the measured eye gaze information and the theoretical eye gaze information.
Type:
Grant
Filed:
May 17, 2021
Date of Patent:
May 30, 2023
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Ke Liu, Ron M. Hecht, Omer Tsimhoni, Michael Baltaxe
Abstract: A magnetic pin system includes a magnetic pin having a polymeric body including: a seating portion; a cylindrical-shaped insert portion integrally fixed to the seating portion; and a first locking wing and a second locking wing oppositely positioned about the insert portion with respect to the first locking wing and integrally connected to the insert portion. A metallic insert is fixed to the seating portion. The metallic insert is susceptible to a magnetic field applied to the metallic insert acting to co-rotate the metallic insert and the polymeric body to install and to remove the polymeric body from a fixed position. A magnetic coupler is positioned over the metallic insert and magnetically coupled to the metallic insert. The magnetic coupler is rotated to induce a 90-degree rotation of the magnetic coupler and thereby the metallic insert to lock the magnetic pin in the fixed position.
Type:
Grant
Filed:
April 8, 2021
Date of Patent:
May 30, 2023
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Alejandro Barrera, Carlos Nava, Jesus Edgar Dominguez
Abstract: A method increases fidelity of a lane localization function aboard a motor vehicle by receiving input signals indicative of a relative position of the vehicle with respect to a roadway. The input signals include GPS and geocoded mapping data, and an electronic turn signal indicative of activation of the turn signal lever. Sensor-specific lane probability distributions are calculated via the lane localization function using the input signals. The various distributions are fused via the localization function to generate a host lane assignment. The host lane assignment corresponds to a lane of the roadway having a highest probability among a set of possible lane assignments. An autonomous steering control action is performed aboard the motor vehicle using an Advanced Driver Assistance System (ADAS) in response to the host lane assignment. A motor vehicle has a controller that performs the method, e.g., by executing instructions from computer-readable media.
Abstract: A control system of the autonomous vehicle may generate multiple possible behavior control movements based on the driving goal and the assessment of the vehicle environment. In doing so, the method and system selects one of the best behavior control, among the multiple possible movements, and the selection is based on the quantitative grading of its driving behavior.
Type:
Grant
Filed:
October 28, 2020
Date of Patent:
May 30, 2023
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Kenji Yamada, Kyungnam Kim, Rajan Bhattacharyya
Abstract: An apparatus is provided for an assembly fixture for positioning a component having a pivot pin including a rigid member, a fixed positioning pin affixed to a first point on the rigid member for insertion in a first locating hole in an assembly, a component restraint affixed to a second point on the rigid member for applying a force to the component for retaining the component in a fixed position and orientation with respect to the assembly fixture, and a pivot positioning pin coupled to a third point on the rigid member by a flexible mounting assembly, the flexible mounting assembly facilitating a linear movement of the pivot positioning pin along a linear path.
Abstract: Systems and methods are provided for pumps that deliver optimized torque characteristics and volumetric efficiency. A system includes a housing defining a surface and a rotor defining a face. A face clearance is defined between the face and the surface. The face clearance is variable in magnitude and determinative of target performance characteristics of the pump system. The housing is made of a material selected to have a thermal expansion characteristic and the rotor is made of a second material selected to have another thermal expansion characteristic. The thermal expansion characteristics deliver the target performance characteristics of the pump system.
Type:
Grant
Filed:
August 31, 2021
Date of Patent:
May 30, 2023
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
Robert Benson Parrish, Michael P Fannin, Avinash Singh, Ryan David Rosinski, Alan Clifford Taylor, Thomas John Fonville
Abstract: A thermal insulation component according to various aspects of the present disclosure includes a matrix, a crosslinking precursor, and a crosslinking initiator. The matrix includes a thermal insulation material having a thermal conductivity of less than or equal to about 5 W/mK. The crosslinking precursor is embedded in the matrix. The crosslinking precursor includes at least one of an acrylate functional group or a methacrylate functional group. The crosslinking initiator is embedded in the matrix. The crosslinking initiator is configured to decompose to initiate crosslinking of the crosslinking precursor. In certain aspects, the present disclosure also provides an electronics assembly including an electronic component and a thermal insulation material in thermal communication with the electronic component. In certain aspects, the present disclosure also provides methods of manufacturing the thermal insulation component.