Patents Assigned to GM
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Publication number: 20240125901Abstract: A system and method of vibration and audible noise reduction in a LiDAR resonator includes a spring fork mechanism including multiple spring forks. Each spring fork includes two tines. The first tine of a first and second spring fork include a mounted optical module to transmit a light pulse and receive a reflection of the light pulse. The second tine of the first and second spring forks include a mounted counterweight having a mass and center of gravity equal to a mass and center of gravity of the mounted optical module. To reduce or eliminate longitudinal vibrations each tine includes a first section and a second section, the first section attached to the second section by a U-shaped section.Type: ApplicationFiled: October 12, 2022Publication date: April 18, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Qijun Zhang, Mark A. Stebbins, Srinivasa R. Molleti
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Patent number: 11962173Abstract: A system for use with a direct current fast-charging (DCFC) station includes a controller and battery system. The battery system includes first and second battery packs, and first, second, and third switches. The switches have ON/OFF conductive states commanded by the controller to connect the battery packs in a parallel-connected (P-connected) or series-connected (S-connected) configuration. An electric powertrain with one or more electric machines is powered via the battery system. First and second charge ports of the system are connectable to the station via a corresponding charging cable. The first charge port receives a low or high charging voltage from the station. The second charge port receives a low charging voltage. When the station can supply the high charging voltage to the first charge port, the controller establishes the S-connected configuration via the switches, and thereafter charges the battery system solely via the first charge port.Type: GrantFiled: April 12, 2022Date of Patent: April 16, 2024Assignee: GM Global Technology Operations LLCInventors: Lei Hao, Yue-Yun Wang, Suresh Gopalakrishnan, Chandra S. Namuduri, Rashmi Prasad, Madhusudan Raghavan
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Patent number: 11959536Abstract: A system for managing vehicle body and wheel motion control with a dual clutch differential includes sensors and actuators disposed on the vehicle, the sensors measuring real-time static and dynamic data and the actuators altering static and dynamic behavior of the motor vehicle. A control module executes program code portions stored in memory. The program code portions receive the real-time static and dynamic data; selectively prioritize torque output from a prime mover of the vehicle through the differential to driven wheels of the vehicle to control a body and the driven wheels; model and estimate clutch torque for each clutch of the dual clutch differential; model and estimate a joint clutch torque, a tire force, and corner torque; and generate a torque output for each clutch of the dual clutch differential that is selected to maintain one or more of body control, wheel control, and stability of the motor vehicle.Type: GrantFiled: April 5, 2022Date of Patent: April 16, 2024Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, University of WaterlooInventors: Reza Hajiloo, Amir Khajepour, Seyedalireza Kasaiezadeh Mahabadi, Seyedeh Asal Nahidi, Bakhtiar B. Litkouhi, Ehsan Mohammadbagher
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Patent number: 11961337Abstract: Aspects of the disclosed technology encompass solutions for automatically requesting a backup vehicle for passengers of an autonomous vehicle provisioned ride-hailing service. In some aspects, a process of the disclosed technology includes steps for collecting diagnostic data relating to at least one AV operation, and analyzing the diagnostic data to determine if the AV needs maintenance. Moreover, in response to a determination that the AV needs maintenance, the process can include steps for automatically requesting a backup service for a passenger of the AV. Systems and machine-readable media are also provided.Type: GrantFiled: January 22, 2021Date of Patent: April 16, 2024Assignee: GM Cruise Holdings LLCInventors: Thomas Bachant, Nadav Ullman, Joseph Thibeault, Jake McCloskey, Paul Garcia, Jose Arturo Covarrubias-Reynoso, Michael Magnoli
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Publication number: 20240116526Abstract: Systems and methods are provided for detecting a blind spot of a vehicle. In one embodiment, a method includes: receiving, by a processor, head position data indicating a position of a head of a driver of the vehicle; determining, by the processor, pillar position data associated with at least one pillar of the vehicle; determining, by the processor, at least one angle based on the head position data and the pillar position data; determining, by the processor, at least one blind spot area based on the at least one angle; detecting, by the processor, at least one object within the at least one blind spot area; and generating at least one of notification data, decision data, and control data based on the at least one object.Type: ApplicationFiled: October 3, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Noah Sharkus, Prabhjot Kaur, Nicholas Constantine Sidiropoulos
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Publication number: 20240120814Abstract: Presented are electric motors and apparatuses thereof for discharging an electric charge buildup on the rotor. In an embodiment, an electric motor apparatus includes a case, a stator arranged within the case, a rotor, a motor shaft extending longitudinally through the rotor to include an axial end, a grounding brush having an outer surface and an elliptical surface, and a spring including one portion maintaining slidable contact with the case and another portion coupled to an outer surface of the brush, the elliptical surface attached to the axial end of the motor shaft for causing a current flow via the brush through the case, which can act as system ground, for discharging an electric charge buildup on the stator due to a parasitic capacitance between the stator and rotor.Type: ApplicationFiled: October 5, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: William T. Ivan, Alireza Fatemi, Margarita P. Thompson
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Publication number: 20240118691Abstract: An augmented reality system operable to provide passengers with a personalized augmented reality environment and experience. The augmented reality system may select the augmented reality environment according to a plurality of augmented reality themes, with the passengers being enabled to personalize their traveling experience and/or to interact with virtual objects to generate virtual commands suitable for use in implementing real control of the autonomous vehicle.Type: ApplicationFiled: October 6, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Frank C. Valeri, Timothy J. Roggenkamp
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Publication number: 20240116479Abstract: In exemplary embodiments, methods and systems are provided that include: sensors configured to obtain sensor data for a vehicle having both friction braking and regenerative braking capabilities and coupled to a trailer, the sensor data including: friction braking data as to a vehicle friction braking force for the vehicle; and regenerative braking sensor data as to a vehicle regenerative braking force for the vehicle; and a processor coupled to the sensors and configured to at least facilitate controlling braking of the trailer by providing trailer braking force, via instructions provided by the processor, based on both the friction braking data and the regenerative braking sensor data, with a sensitivity toward the vehicle regenerative braking force such that the trailer braking force is affected differently by the vehicle regenerative braking force versus the vehicle friction braking force.Type: ApplicationFiled: October 6, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael Nguyen, Gursimran Chauhan, Corey A Robinson
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Publication number: 20240120486Abstract: An electrochemical cell may include a first electrode that includes a positive electroactive material, a second electrode that includes a negative electroactive material and a polyacrylate binder, and a separating layer disposed between the first and second electrodes. The polyacrylate binder has a molecular weight greater than or equal to about 250,000 mol/g to less than or equal to about 500,000 mol/g. The second electrode is prepared by disposing an electrode forming slurry having a temperature greater than or equal to about 4° C. to less than or equal to about 15° C. one or near a surface of a current collector. The electrode forming slurry includes the negative electroactive material and the polyacrylate binder. The negative electroactive material can be a silicon-containing material.Type: ApplicationFiled: September 28, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Insun YOON, Meixian WANG, Ion C. HALALAY
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Publication number: 20240119207Abstract: Disclosed are systems and methods for synthetic loading of configurable logic devices. In some aspects, a method includes determining computational elements that are available for configuration in a configurable logic hardware device; executing a compilation process to program the available computational elements with a conditionally-enabled configuration and to program one or more load enable trees to enable a load of the conditionally-enabled configuration at the computational elements; configuring a software interface to enable the load of the conditionally-enabled configuration on portions of the computational elements via the one or more load enable trees based on a percentage enablement parameter; and enabling iteration through different percentage enablement parameter values, via the software interface, to cause the load of the conditionally-enabled configuration to be applied to different portions of the computational elements without recompiling the configurable logic hardware device.Type: ApplicationFiled: October 7, 2022Publication date: April 11, 2024Applicant: GM CRUISE HOLDINGS LLCInventors: Matthew Fornero, Manjukumar Harthikote Matha, Francis Bruno
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Publication number: 20240116503Abstract: A system of controlling operation of a vehicle includes one or more sensors operatively connected to the vehicle. The sensors are configured to obtain respective data of a scene and include a radar unit. A command unit is adapted to receive the respective data and includes a processor and tangible, non-transitory memory on which instructions are recorded. The command unit is configured to determine an orientation angle of a pedestrian in the scene, a Doppler frequency of the pedestrian and a distance of the pedestrian from a border of a road, based in part on the respective data. The orientation angle is based on a heading of the pedestrian relative to a direction of a road. The command unit is configured to designate a status of the pedestrian as either crossing or not crossing based on the distance, the orientation angle and the Doppler frequency of the pedestrian.Type: ApplicationFiled: October 7, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Oded Bialer, Siddhartha Gupta
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Publication number: 20240120662Abstract: 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.Type: ApplicationFiled: July 28, 2020Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Hanseung Lee, Igal Bilik
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Publication number: 20240118408Abstract: A system of controlling operation of a vehicle includes a lidar unit and a radar unit configured to obtain measured lidar datapoints and a measured radar signal, respectively. A command unit is adapted to receive the measured lidar datapoints and the measured radar signal, the command unit including a processor and tangible, non-transitory memory on which instructions are recorded. The command unit is configured to identify respective objects in the measured lidar datapoints and assign a respective radar reflection intensity to the measured lidar datapoints in the respective objects. A synthetic radar signal is generated based in part on the radar reflection intensity. The command unit is configured to obtain an enhanced radar signal by adjusting the measured radar signal based on the synthetic radar reference signal.Type: ApplicationFiled: October 11, 2022Publication date: April 11, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Oded Bialer, Yuval Haitman
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Publication number: 20240118410Abstract: Curvelet-based low level fusion of camera and RADAR sensor information is disclosed and includes processing RADAR data corresponding to a scene to generate a RADAR point cloud and processing camera image data corresponding to the scene using a curvelet transform to identify a target of interest in the scene and generate for the target of interest a target type, (x,y) coordinate values, and a curvelet magnitude per decomposition level. If discrepancies exist between (x,y) coordinate values of the RADAR point cloud and the target type, (x,y) coordinate values, and curvelet magnitude per composition level of the target of interest, a portion of the RADAR data processing is repeated to regenerate the RADAR point cloud; otherwise, the RADAR point cloud to a perception stack of a vehicle.Type: ApplicationFiled: October 11, 2022Publication date: April 11, 2024Applicant: GM Cruise Holdings LLCInventors: Kotung Lin, Daniel Flores Tapia
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Patent number: 11955852Abstract: Presented are oleophilic surface treatments for electric machines, methods for making/using such electric machines, and vehicles employing traction motors having stator windings with oleophilic treatments on select surfaces. An electric machine includes an outer housing with a direct-cooling thermal management system fluidly connected to the housing to circulate thereto a coolant fluid. A stator assembly, which is attached to the housing, includes a stator core with one or more electromagnetic windings mounted to the stator core. A rotor assembly is movably mounted to the hosing adjacent the stator assembly. The rotor assembly includes a rotor core with one or more magnets mounted to the rotor core spaced, e.g., across an air gap, from the winding(s). Select components of the stator assembly have a target surface with an oleophilic surface treatment that enlarges the target surface's wetted area and increases a coolant mass of the coolant fluid contacting the target surface.Type: GrantFiled: July 6, 2021Date of Patent: April 9, 2024Assignee: GM Global Technology Operations LLCInventors: SeungHwan Keum, Mei Yang, Neal Parsons, Ruth Herrera Reed
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Patent number: 11954205Abstract: A method for securing an electronic control unit (ECU). The method may include generating a granular security control adjustment authorization ticket (G-SCAAT) for securing the ECU according to a plurality of security parameters determined based on to a role selected for a corresponding user. The G-SCAAT may include security values to be used in controlling the ECU to operate according to the security parameters.Type: GrantFiled: June 24, 2022Date of Patent: April 9, 2024Assignee: GM Global Technology Operations LLCInventors: Brian Farrell, Joseph E. Ploucha
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Patent number: 11951538Abstract: Hollow automotive parts, methods for fabricating hollow automotive parts, and methods for fabricating hollow castings are provided. An exemplary method for fabricating a hollow casting includes casting at least a first casting section and a second casting section from a slurry using a semi-solid casting process, and welding the casting sections together at interfaces therebetween.Type: GrantFiled: January 25, 2021Date of Patent: April 9, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Adam G. Kotlarek, Frank D. Risko
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Patent number: 11955006Abstract: A vehicle includes a traffic light indication system (system) with one or more input devices for generating a status input signal associated with a status of a traffic light. The input devices further generate an overriding input signal associated with a hazardous driving condition. The system further includes a notification device for providing a traffic light notification to the user. The system further includes a computer having a processor and a non-transitory computer readable storage medium (CRM) storing instructions. The processor is programmed to generate an actuation signal based on the status input signal. The processor is further programmed to refrain from generating the actuation signal, in response to the processor determining the predicted collision based on the status input signal and the overriding input signal. The notification device provides the traffic light notification to the user, in response to the notification device receiving the actuation signal.Type: GrantFiled: August 17, 2022Date of Patent: April 9, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Vivek Vijaya Kumar, Mohammad Naserian, Dustin Howard Malcom Smith
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Patent number: D1021719Type: GrantFiled: October 19, 2021Date of Patent: April 9, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Kirk D. Bennion
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Patent number: D1022823Type: GrantFiled: April 21, 2022Date of Patent: April 16, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Scott P. Wassell, Casey Swanseger