Patents Assigned to GLOBAL TECHNOLOGY OPERATIONS LLC
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Patent number: 11808841Abstract: Systems and methods to perform sensor fusion with a depth imager and a radar system involve transmitting radio frequency (RF) energy from the radar system to a region and simultaneously emitting light to the region using a light source, Reflected light is received at a depth imager aligned with the light source, and RF reflections are received at the radar system. The reflected light is processed to obtain azimuth, elevation, range, variance in range, and reflectivity to each pixel that makes up the region. Processing the RF reflections provides azimuth, elevation, range, variance in range, velocity, and variance in velocity to a subset of the pixels representing a region of interest. Performing the sensor fusion includes using the azimuth, the elevation, the variance in range, and the reflectivity resulting from the depth imager and the range, the velocity, and the variance in velocity resulting from the radar system.Type: GrantFiled: October 5, 2020Date of Patent: November 7, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Emanuel Mordechai, Igal Bilik
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Patent number: 11811352Abstract: The present disclosure discloses a vehicle propulsion system. The vehicle propulsion system includes a first electric machine including a first set of machine windings that are configured to cause a rotor to rotate about an axis to selectively drive a transmission during a first vehicle operating state and a second electric machine including a second set of machine windings that are configured to cause a rotor to rotate about an axis selectively drive the transmission during at least one of the first vehicle operating state or a second vehicle operating state. The second vehicle operating state different from the first operating state, and a number of series turns per phase for the first set of machine windings is different from a number of series turns per phase for the second set of machine windings.Type: GrantFiled: June 4, 2021Date of Patent: November 7, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alireza Fatemi, Thomas W. Nehl, Norman K. Bucknor
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Publication number: 20230350014Abstract: A system and associated method for calibrating a radar system is described, wherein the radar system includes a phased array antenna including a first antenna array and a second antenna array, a transmitter array, and a receiver array, communication leads, a calibration circuit, and a controller. The calibration circuit includes a power divider and directional couplers. A pilot signal is injected, via the power divider and the directional couplers, to the receivers during a quiet period. Phase offsets and gain imbalances for the receivers are determined in relation to a reference channel based upon the pilot signal, and phase calibrations and gain calibrations for the receivers are determined based upon the phase offsets and the gain imbalances, and a radar-related parameter is based upon the phase calibrations and the gain calibrations for the receivers.Type: ApplicationFiled: April 27, 2022Publication date: November 2, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ofer Bar-Shalom, Igal Kotzer
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Publication number: 20230347777Abstract: Presented are intelligent vehicle systems and logic for battery charge control and information display, methods for making/using such systems, and vehicles equipped with such systems. A method of operating a vehicle includes a vehicle controller receiving vehicle location data indicating a real-time location of the vehicle and determining if the vehicle's real-time location is within a virtual geofence that delineates a predefined geographic area. If the real-time vehicle location is within the virtual geofence, the controller receives user location data indicating a real-time location of a vehicle user and determines if the user's real-time location is within a predefined proximity to the vehicle. If the user is within the predefined proximity to the vehicle, the controller responsively determines if a vehicle battery is charging; if so, the controller transmits a command signal to a resident vehicle subsystem to execute a control operation related to the charging of the vehicle battery.Type: ApplicationFiled: May 2, 2022Publication date: November 2, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: John Shpati, Jeeho J. Cha
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Publication number: 20230347871Abstract: Methods and systems are provided for controlling a drive system in a hybrid electric vehicle. In an exemplary embodiment, the drive system has combustion engine and an electric motor, and a method includes: obtaining, via one or more sensors, sensor data pertaining to the hybrid electric vehicle; determining, via a processor, whether cold start emission reduction is required, based on the sensor data; and providing an increase in torque provided by the electric motor, via instructions provided by the processor to the drive system, when it is determined that the cold start emission reduction is required.Type: ApplicationFiled: May 2, 2022Publication date: November 2, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: J. Michael Gwidt, Daniel S Dimoski, Daniel P Himes, Haresh Dayaljee Varu
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Publication number: 20230347744Abstract: A method and system are contemplated for determining a final speed and position of a motor used in an electric vehicle. The final speed and position is calculated as a function of a sensed position when a resolver of a position system is available and as a function of a sensorless position when the resolver is unavailable.Type: ApplicationFiled: April 28, 2022Publication date: November 2, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael Duncan Swartz, Young Joo Lee, Brian J. Gallert, Anno Yoo
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Publication number: 20230347867Abstract: A control system and method for mitigating driveline torque spikes in an electric vehicle is contemplated. The driveline torque spikes may be mitigated with a motor spike torque command generated in response to a wheel acceleration of a wheel of the vehicle exceeding a spike threshold. The motor spike torque command may be configured for controlling an electric motor of the vehicle to mitigate the driveline torque spike in a driveline configured to connect the motor to the wheel.Type: ApplicationFiled: May 2, 2022Publication date: November 2, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Shaochun Ye
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Patent number: 11805329Abstract: Systems, methods, and apparatus are provided for real-time adjustment of image quality parameters. The system includes a controller configured to: acquire an image frame, having a fixed-pixel region that defines a region-of-interest, from one or more imaging devices; apply image processing techniques to determine a modified fixed-pixel region that excludes non-relevant object pixels; alter one or more image quality parameters based on statistics of pixels in the modified fixed-pixel region; and provide the altered one or more image quality parameters to the one or more imaging devices for use with subsequent image frames; wherein the one or more imaging devices produce an image that is tuned, based on the altered one or more image quality parameters, to the portions of the image in the region-of-interest that does not include the non-relevant object pixels.Type: GrantFiled: July 12, 2022Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sai Vishnu Aluru, Sravan Daruri, Brian Yousif-Dickow, Andrew W Averhart
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Patent number: 11801870Abstract: An autonomous driving system for an autonomous vehicle includes an automated driving controller wirelessly connected to a towing taxi. The automated driving controller determines the autonomous driving system is non-functional. In response to determining the autonomous driving system is non-functional, the automated driving controller generates a notification indicating the autonomous driving system is non-functional. The automated driving controller receives, from the towing taxi, a current data string including a data point corresponding to a current point in time in combination with a predicted data point for each of one or more predicted points of time in the future. The current data string is compared with a previous data string recorded at a previous point in time. In response to determining the current data string matches the previous data string, the automated driving controller determines one or more driving maneuvers for the autonomous vehicle based on the current data string.Type: GrantFiled: September 10, 2021Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Rasoul Salehi, Yao Hu, Arun Adiththan, Yilu Zhang
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Patent number: 11804082Abstract: Methods and apparatus are provided for diagnosing a vehicle. In one embodiment, a method includes: initiating, by a processor, a recording of a noise by at least one microphone based on user selection data from a user of the vehicle; receiving, by the processor, audio signal data based on the recording; generating, by the processor, vector data based on the audio signal data; processing, by the processor, the vector data with at least one trained machine, by the processor, learning model to determine a classification of the noise; predicting, by the processor, an action to be taken based on the classification; and storing, by the processor, the audio signal data, the classification, and the action in a datastore.Type: GrantFiled: June 17, 2021Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gaurav Talwar, Kenneth Ray Booker, William L. Villaire, Jeffery J. Milton, Mathew Anthony Clifford Keith Jones
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Patent number: 11804744Abstract: An axial flux electric machine comprises a stator including a plurality of stator core segments each comprising a lamination comprising a plurality of layers. A first soft magnetic composite (SMC) portion is arranged adjacent to the plurality of layers of the lamination. An insulating layer arranged between circumferential side surfaces of the plurality of layers of the lamination and the first SMC portion. A rotor is arranged axially adjacent to the stator and including a plurality of permanent magnets. The rotor and stator are configured to generate magnetic flux that is aligned parallel to an axis of rotation of the rotor.Type: GrantFiled: April 6, 2022Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Chengwu Duan, Zhen Gao, Jian Yao
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Patent number: 11804962Abstract: An in-vehicle encryption system for use in a vehicle comprising a plurality of vehicle subsystems. The system comprises a security ECU module that communicates with a remote cryptographic module, the security ECU module comprising a processor and a per vehicle master secret (PVMS) value stored in the security ECU module. The security ECU module uses the PVMS value to authenticate with the remote cryptographic module and to establish an external encrypted communication link with the remote cryptographic module. The system further comprises a first subsystem ECU module that generates a first globally unique identifier (GUID) and a second subsystem ECU module that generates a second GUID. The security ECU module uses the first GUID value to establish a first encrypted communication link with the first subsystem ECU module.Type: GrantFiled: April 29, 2021Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jacob Alan Bond, Eduard Shpati
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Patent number: 11801574Abstract: Presented are metalworking systems for joining metallic workpieces, methods for forming and welding such workpieces, and lithium-ion battery pouch cells with anodized aluminum tabs joined via knurling and laser welding. A method for laser welding abutting sections of a workpiece or stackup of workpieces includes receiving, via a workpiece support frame, one or more metallic workpieces each with a surface having applied thereto a treatment layer. This treatment layer releases a gas during welding. A metalworking device forms a knurl pattern into the workpiece surface with the treatment layer. The knurl pattern includes a network of channels, such as one or more series of mutually parallel, rectilinear vent channels, designed to exhaust therethrough the gas released from a welded section of the treatment layer. A laser welding device thereafter welds a joint region of the surface(s) of the one or more metallic workpiece with the knurl pattern.Type: GrantFiled: March 6, 2020Date of Patent: October 31, 2023Assignee: GM Global Technology Operations LLCInventors: Chih-Chang Chen, Jacob W. Disbro, Robert H. Dietze
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Patent number: 11804639Abstract: Presented are metalworking systems for forming metallic workpieces, methods for making/operating such metalworking systems, and battery module cell tabs bent by a multistage cluster-and-bend press. A metalworking system includes a grouping tool and a contouring tool that both align adjacent a workpiece support structure, such as a base plate of a battery module housing buttressing a stack of battery pouch cells. The grouping tool, which may include a first reciprocating plunger or plunger head, presses together a stack of metallic workpieces to thereby form a workpiece set having a first bend profile and a first length. The contouring tool, which may include a second reciprocating plunger or a pair of plunger fingers mounted on the plunger head, is attached to the grouping tool and bends the workpiece set to a second bend profile, distinct from the first bend profile, and a second set length, shorter than the first set length.Type: GrantFiled: July 23, 2020Date of Patent: October 31, 2023Assignee: GM Global Technology Operations LLCInventor: Robert H. Dietze
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Patent number: 11802502Abstract: An exhaust system includes a light-off catalyst, an exhaust system component, and at least one H2O trap. The exhaust system component is upstream from the light-off catalyst and includes catalyst material, the catalyst material configured to store hydrocarbons during a period when the light-off catalyst is warming up to a light-off temperature. The at least one H2O trap is at or upstream from the exhaust system component and is configured to perform H2O adsorption and desorption to increase a length of time for the exhaust system component to reach a hydrocarbon release temperature and prevent the exhaust system component from reaching the hydrocarbon release temperature prior to the light-off catalyst reaching the light-off temperature.Type: GrantFiled: January 30, 2023Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Patrick G. Szymkowicz, Mingjie Tu, Yuntao Gu, Calvin Thomas
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Patent number: 11801491Abstract: A three-way catalyst for reduced palladium loading is provided. The catalyst includes an inert substrate and a palladium catalyst material coating the substrate. The palladium catalyst material includes a support material formed from one of 10% CeO2/Al2O3, 20% CeO2—Al2O3 (20CeAlOy), 30% CeO2—Al2O3 (30CeAlOy), Al2O3, and MOx-Al2O3, wherein M is one of copper, iron, manganese, titanium, zirconium, magnesium, strontium, and barium. The palladium catalyst material includes a layer of CeO2 material disposed upon the support material, wherein the layer of CeO2 material is dispersed on a surface of the support material. The palladium catalyst material includes an active component including a layer of praseodymium oxide particles dispersed across the surface of the layer of CeO2 material and a layer of palladium particles disposed upon and dispersed across the surface of the layer of CeO2 material at locations each corresponding to a respective location of each of the praseodymium particles.Type: GrantFiled: April 21, 2022Date of Patent: October 31, 2023Assignees: GM GLOBAL TECHNOLOGY OPERATIONS LLC, University of Central Florida Research Foundation, Inc., BASF CorporationInventors: Yuntao Gu, Fudong Liu, Wei Li, Shaohua Xie, Yuejin Li, Xiaolai Zheng
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Patent number: 11802913Abstract: A diagnostic system for a resolve of a motor and a method of diagnosing the resolver. The diagnostic system includes an x-phase winding, a y-phase winding, and a processor. The x-phase winding generates an x-phase voltage and the y-phase winding generates a y-phase voltage. The processor obtains the x-phase voltage and the y-phase voltage, determines an adaptive cosine envelope from the x-phase voltage and an adaptive sine envelope from the y-phase voltage, determines an adaptive magnitude from the adaptive sine envelope and the adaptive cosine envelope, determines a magnitude average based on the adaptive magnitude, determines a fault of the resolver when a ratio of the adaptive magnitude and the magnitude average is greater than a threshold, and transmits a signal based on the fault.Type: GrantFiled: October 8, 2021Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Brian J. Gallert, Wei Wang
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Patent number: 11804131Abstract: A communication system that determines a context and an intent of a specific remote vehicle located in a surrounding environment of a host vehicle includes one or more controllers for receiving sensed perception data including sensed perception data. The one or more controllers execute instructions to determine a plurality of vehicle parameters related to the specific remote vehicle. The the one or more controllers execute instructions to associate the specific remote vehicle with a specific lane of travel of a roadway based on map data. The one or more controllers determines possible maneuvers, possible egress lanes, and a speed limit for the specific remote vehicle for the specific lane of travel based on the map data, and determines the context and the intent of the specific remote vehicle based on the plurality of vehicle parameters, the possible maneuvers, the possible egress lanes for the specific remote vehicle, and the speed limit related to the specific remote vehicle.Type: GrantFiled: November 24, 2021Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Vivek Vijaya Kumar, Bo Yu, Hariharan Krishnan, Kamran Ali, Fan Bai
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Patent number: 11801770Abstract: A battery system includes first and second battery packs connected to positive and negative DC voltage bus rails, a contactor switch connected between the battery packs, a solid-state switch in series with the contactor switch, and a controller. The controller determines characteristic values of the switches, including a respective temperature, voltage, and current value for each. The controller also detects a predetermined electrical fault condition of the contactor switch using the characteristic values, and executes a control action in response to the electrical fault condition. The control action includes opening the semi-conductor switch to thereby interrupt a flow of current between the first and second battery packs. A mobile platform includes road wheels connected to a body, a rotary electric machine configured to power the road wheels and thereby propel the mobile platform, and the battery pack, switches, and controller.Type: GrantFiled: September 13, 2019Date of Patent: October 31, 2023Assignee: GM Global Technology Operations LLCInventors: Rashmi Prasad, Chandra S. Namuduri
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Patent number: 11803365Abstract: A system is provided for updating vehicle software configurations for multiple vehicles. The system includes a network having multiple ECUs carried by the vehicles, with each ECU having an ECU software configuration including software components with one or more versions. The system further includes a network appliance having a processor communicating with the ECUs and a computer readable medium. The processor is programmed to identify coverage points for software components. The processor is further programmed to collect clusters for validating an update of the associated software components and determine optimal sets of clusters, which is less than or equal to a total of the clusters. The processor is further programmed to rank the clusters of the selected optimal set, based on a vehicle coverage percentage of each cluster, and transmit the optimal set for software configuration validation and then finally transmit the validated update to the associated vehicle ECUs.Type: GrantFiled: March 25, 2022Date of Patent: October 31, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Prakash Mohan Peranandam, Ramesh Sethu, Arun Adiththan, Muralikrishnan Kailasam, Zhiqiang J. Zhou