Patents Assigned to GM
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Patent number: 11753089Abstract: A pickup truck including a passenger compartment, a cargo bed operatively coupled to the passenger compartment, and a selectively deployable drag reduction system mounted at the cargo bed. The selectively deployable drag reduction system includes a deflector that is shiftable between a non-deployed configuration and a deployed configuration. In the deployed configuration the deflector is exposed to an airflow passing over the pickup truck.Type: GrantFiled: November 5, 2021Date of Patent: September 12, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Richard J. Lopez, William D. Detrisac
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Patent number: 11754719Abstract: Distance measurements are received from one or more distance measurement sensors, which may be coupled to a vehicle. A three-dimensional (3D) point cloud are generated based on the distance measurements. In some cases, 3D point clouds corresponding to distance measurements from different distance measurement sensors may be combined into one 3D point cloud. A voxelized model is generated based on the 3D point cloud. An object may be detected within the voxelized model, and in some cases may be classified by object type. If the distance measurement sensors are coupled to a vehicle, the vehicle may avoid the detected object.Type: GrantFiled: July 30, 2021Date of Patent: September 12, 2023Assignee: GM Cruise Holdings LLCInventors: Sandeep Gangundi, Sarthak Sahu, Nathan Harada, Phil Ferriere
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Patent number: 11754629Abstract: An active isolation detection method may be used with an electrical system having a battery pack connected to a high-voltage bus. The bus has positive and negative bus rails, each having a respective rail-to-ground voltage. The method may include connecting variable resistance element to the high-voltage bus, and determining input information indicative electrical characteristics of the battery pack, the high-voltage bus, and/or a charging station. The method includes varying a bias resistance of the high-voltage bus, via control of the variable resistance element, e.g., via duty cycle control of a binary switch in series with a bias resistor, to produce a varied bias resistance based on the input information. A target voltage shift is achieved on the high-voltage bus as a target level of change in one of the rail-to-ground voltages. An isolation resistance of the electrical system is determined via the controller using the varied bias resistance.Type: GrantFiled: August 6, 2019Date of Patent: September 12, 2023Assignee: GM Global Technology Operations LLCInventors: Yue Fan, Shifang Li, Russell K. Steele, James E. Tarchinski
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Patent number: 11755312Abstract: The subject disclosure relates to techniques for updating a bootloader on a embedded device. In some aspects, a process of the disclosed technology can include steps for calculating a digest for an existing bootloader stored on the bootloader memory, determining if the digest for the existing bootloader matches a digest for a target bootloader, and copying the target bootloader to the bootloader memory, if the digest for the existing bootloader does not match the digest for the target bootloader. Systems and computer-readable media are also provided.Type: GrantFiled: September 20, 2021Date of Patent: September 12, 2023Assignee: GM Cruise Holdings LLCInventors: James Bradley Lohmeyer, Charles Z. Mooney
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Publication number: 20230278622Abstract: In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for lateral control of a steering system includes identifying at least one parameter of at least one lateral control feature that results in an optimized value in an outcome of control for a lateral control feature enabling robustness to an uncertainty; adaptively adjusting an output control signal generated by a vehicle trajectory controller coupled to the steering controller, by quantifying the uncertainty of an uncertain value in a lateral control feature; and sending a control command including at least a torque control or a wheel angle control to compensate for the uncertainty of the at least one uncertain value in the configuration of components of an electronic power steering (EPS) system associated with the vehicle variant by correcting at least one parameter of the at least one lateral control feature.Type: ApplicationFiled: March 1, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mohammadali Shahriari, Mohammed Raju Hossain, Ashraf Abualfellat, Brian Porto
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Publication number: 20230282916Abstract: A fastening arrangement includes a tray having an outwardly extending tray flange with a first hole therein, a cover having a generally U-shaped portion and a cover flange extending outward therefrom with a second hole therein. The cover is disposed atop the tray with the generally U-shaped portion disposed in contact with the tray flange and the cover flange disposed a predetermined height above the tray flange with the first and second holes aligned with each other. A spacer having a third hole therethrough is disposed between the tray flange and the cover flange with the third hole aligned with the first and second holes. A fastener arrangement has a shaft extending through the first, second and third holes, a head formed on a first shaft end, a threaded portion on a second shaft end, and a nut engaged with the threaded portion.Type: ApplicationFiled: March 2, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Abhay R. Bhandari, Carl E. Fonville
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Publication number: 20230278562Abstract: Methods and systems are provided for automatically controlling lane changes for a vehicle. In one exemplary embodiment: vehicle sensors are configured to provide sensor data pertaining to operation of the vehicle and surroundings of the vehicle along a roadway in which the vehicle is travelling; and a processor configured to at least facilitate: receiving, from a plurality of vehicle assessors, a plurality of respective requests with respect to one or more automated lane change maneuvers for the vehicle; and selectively implementing the one or more automated lane change maneuvers for the vehicle based on an arbitration algorithm that is executed by the processor and that provides arbitration for the plurality of respective requests from the plurality of vehicle assessors utilizing respective lane arbitration scores for a plurality of lanes of the roadway pertaining to the one or more automated lane change maneuvers.Type: ApplicationFiled: March 1, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jeffrey S. Parks, Paul A Adam, Braden J. Swantick
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Publication number: 20230282805Abstract: A reference electrode assembly for an electrochemical cell includes a separator constructed from an electrically-insulating porous material. The reference electrode assembly also includes a current collector having a sputtered electrically-conducting porous layer arranged directly on the separator and a sputtered lithium iron phosphate (LFP) layer arranged directly on the electrically-conducting porous layer. The reference electrode assembly additionally includes an electrical contact connected to the current collector. A method using successive vacuum deposition of individual layers onto the separator is employed in fabricating the reference electrode assembly.Type: ApplicationFiled: March 3, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gayatri V. Dadheech, Mark W. Verbrugge, Brian J. Koch, Jing Gao, Alok Warey
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Publication number: 20230281871Abstract: A method in a vehicle is disclosed. The method includes: detecting an object in image data; defining a bounding box that surrounds the object; matching the object to data points in a point cloud from a LiDAR system; determining three-dimensional (3-D) position values from the data points for pixels in the image data; applying statistical operations to the 3-D position values; determining from the statistical operations a nature (real or imitation) of the object; determining a size for the object based on the 3-D position values; determine a shape for the object based on the 3-D position values; recognizing a category for the object using object recognition techniques based on the determined size and shape; and notifying a vehicle motion control system of the size, shape, and category of the object when the nature of the object is real to allow for appropriate driving actions in the vehicle.Type: ApplicationFiled: March 1, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sai Vishnu Aluru, Noor Abdelmaksoud
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Publication number: 20230282924Abstract: A battery cell thermal insulator configured for mitigating a thermal event in a battery is provided. The battery cell thermal insulator includes a metal plate configured for providing rigidity to the battery cell thermal insulator. The battery cell thermal insulator further includes a layer of inorganic intumescent composite material disposed upon one side of the metal plate configured for providing thermal resistivity.Type: ApplicationFiled: March 1, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Xingcheng Xiao, Yangbing Zeng, Su Jung Han, James R. Salvador
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Publication number: 20230278553Abstract: Systems and methods of detecting and validating a turn light indicator in a vehicle include receiving optical perception data from an optical perception system. The optical perception data includes data describing a detected turn indicator light of another vehicle perceived by the optical perception system including a status of the detected turn indicator light. A turn indicator light signal is generated in the form of a time varying waveform based on the status of the detected turn indicator light. A duty cycle and frequency of the turn indicator light signal is obtained. An assessment is made whether the detected turn indicator light is a valid detection by comparing the duty cycle and frequency with predetermined bounds. When the detected turn indicator light is assessed to be a valid detection, then an automated feature of the vehicle is controlled based on the data describing the detected turn indicator light.Type: ApplicationFiled: March 1, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Daniel R. Kraft, Taylor A. Jakubczak, Amanpal S. Grewal, Darren Khan, Ben Llewellyn
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Publication number: 20230282881Abstract: A polymer gel electrolyte for an electrochemical cell that cycles lithium ions is provided. The polymer gel electrolyte includes a polymeric blend comprising polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) and polyvinylidene fluoride (PVDF), wherein a mass ratio of PVDF-HFP to PVDF is greater than or equal to about 1.5:1 to less than or equal to about 19:1 in the polymeric blend.Type: ApplicationFiled: August 9, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Bradley R. FRIEBERG, Zhe LI, Yong LU
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Publication number: 20230282808Abstract: A method for forming a protective electrode coating on an electrode to be used in a lithium-sulfur battery is provided. The method includes contacting one or more surfaces of the electrode with a polymeric admixture, and polymerizing the polymeric admixture to form the protective electrode coating. The polymeric admixture includes a plurality of monomers, for example heterocyclic acetal monomers and/or cyclic ether monomers, and a lithium difluoro(oxalato)borate (LiDFOB) initiator. In certain instances, the polymeric admixture may also include a structural additive and/or a lithium salt. The contacting may include applying a thin film on the one or more surfaces of the electrode, and the polymerization may be heat activated.Type: ApplicationFiled: March 7, 2022Publication date: September 7, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sanaz KETABI, Shuru CHEN, Fang DAI, Mei CAI
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Patent number: 11746581Abstract: A flip hinge for a motor vehicle includes an inner strap affixed to a body of the motor vehicle, an outer strap separate from the inner strap and affixed to a removable panel of the motor vehicle, and an intermediate link extending from the inner strap to the outer strap. The intermediate link is rotatably attached to the inner strap at a first link end by a spring-loaded pivot. The intermediate link is rotatably attached to the outer strap at a second link end by an outer strap pivot. The intermediate link is movable between at least a first position and a second position. The spring-loaded pivot biases the intermediate link towards the second position whenever the intermediate link is not in the first position, and the outer strap is separable from the intermediate link only when the intermediate link is in the first position.Type: GrantFiled: October 4, 2021Date of Patent: September 5, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Christine M Krolewski, Joern Zirfass, Bob Thomas
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Patent number: 11745705Abstract: An anti-lock braking system for a triple axle trailer having three axles and six wheels is disclosed. The system includes a first wheel speed sensor coupled to the first wheel of the trailer, a second wheel speed sensor coupled to the third wheel of the trailer, a spring mount pivotably coupled to the body of the trailer, a first suspension member coupled to the first wheel and to the spring mount and a second suspension member coupled to the second wheel and to the spring mount. The system includes a hydraulic braking actuator having a first channel coupled to the first wheel and the second wheel and a second channel coupled to the third wheel. The spring mount pivots in response to an applied brake torque to increase a normal force applied to the second wheel as compared to a normal force applied to the first wheel.Type: GrantFiled: November 24, 2020Date of Patent: September 5, 2023Assignee: GM Global Technology Operations LLCInventors: Todd J. Brinkman, Edward T. Heil, Douglas J. Spry, Steven G. Reini
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Patent number: 11746869Abstract: Presented are torque converters (TC) with planetary-type vibration dampers, methods for making/using such TC assemblies, and vehicles equipped with such TC assemblies. A TC assembly includes a TC housing drivingly connected to a prime mover to receive torque therefrom, and a TC output member drivingly connected to a transmission to transfer torque thereto. Rotatably mounted within an internal fluid chamber of the TC housing are juxtaposed turbine and impeller blades. The impeller blades are rotatably mounted to the housing. A TC clutch is operable to lock the TC housing to the TC output member. A torsional vibration damper, which is disposed within the internal fluid chamber, includes a sun gear attached to the TC output member for unitary rotation, a ring gear attached to the TC clutch for unitary rotation, and a planet carrier intermeshed with the ring and sun gears and attached to the turbine blades for unitary rotation.Type: GrantFiled: December 21, 2021Date of Patent: September 5, 2023Assignee: GM Global Technology Operations LLCInventors: Dongxu Li, Leonid Basin
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Patent number: 11749832Abstract: Lithiated electrodes, electrochemical cells including lithiated electrodes, and methods of making the same are provided. The method includes lithiating at least one electrode in an electrochemical cell by applying current across a first current collector of the at least one electrode to a second current collector of an auxiliary electrode. The electrochemical cell may be disposed within a battery packaging and the auxiliary electrode may be disposed within the battery packaging adjacent to an edge of the electrochemical cell. The at least one electrode may include a first electroactive layer disposed on or near one or more surfaces of the first current collector, and the auxiliary electrode may include a second electroactive layer disposed at or near one or more surfaces of the second current collector. The method may further include extracting the auxiliary electrode from the battery packaging and sealing the battery packaging, which includes the pre-lithiated electrochemical cell.Type: GrantFiled: November 20, 2019Date of Patent: September 5, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Xingcheng Xiao, Xingyi Yang, Mark W. Verbrugge, Raghunathan K, Qinglin Zhang
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Patent number: 11745769Abstract: An automated driving system includes perception, intervention, and vehicle control modules. The perception module detects an upcoming situation to be experienced by a vehicle. The intervention module: determines that a low confidence level exists for a driving decision to be made for the upcoming situation; enables intervention of an autonomous driving mode and indicate information pertaining to the upcoming situation to a driver of the vehicle via an interface; based on the upcoming situation, requests assistance from the driver by (i) indicating available options for the situation via the interface, or (ii) requesting information from the driver to aid in making the driving decision; and determine whether an input has been received from the driver via the interface indicating (i) a selected one of the available options, or (ii) the requested information. The vehicle control module autonomously drives the vehicle based on whether the input has been received.Type: GrantFiled: May 4, 2021Date of Patent: September 5, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sycamore Zhang, Jimmy Qi
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Patent number: 11745786Abstract: A steering control system includes a hub connectable to a steering shaft defining a steering axis. An airbag receiving zone is formed in the hub. A steering wheel is connected to the hub, the steering wheel includes a central hub member, a plurality of spokes each having a first end extending from the central hub member and a second end, and a steering wheel rim connected to the second end of each of the plurality of spokes. The central hub member being slidably mounted to the hub along the steering axis.Type: GrantFiled: July 21, 2022Date of Patent: September 5, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Thomas E. Houck
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Patent number: 11745741Abstract: A method detects unintended acceleration of a motor vehicle during a closed-loop speed control mode by determining external forces on the vehicle via a controller, and then calculating a desired acceleration using a measured vehicle speed and the external forces. The method includes determining an actual acceleration of the vehicle, including filtering a speed signal as a first actual acceleration value and/or measuring a second actual acceleration value using an inertial measurement unit (IMU). During the speed control mode, the method includes calculating an acceleration delta value as a difference between the desired acceleration and the actual acceleration, and then using the acceleration delta value to detect the unintended acceleration during the speed control mode. A powertrain system for the motor vehicle, e.g., an electric vehicle, includes the controller and one or more torque generating devices coupled to road wheels of the vehicle.Type: GrantFiled: March 19, 2021Date of Patent: September 5, 2023Assignee: GM Global Technology Operations LLCInventors: Jacob M. Knueven, Jason C. Jousma, Paul G. Otanez, Aubrey W. Downs, Jr., Joseph D. Hillegass, Abdoulaye T. Diallo