Patents Assigned to GLOBAL TECHNOLOGY OPERATIONS LLC
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Patent number: 11429185Abstract: A method of assessing a gaze of an occupant is provided. The method includes: determining a direction of a gaze of an occupant based on gaze information detected by a first sensor; determining a position of a feature of road based on one or more from among mapping information or vehicle environment information provided by a second sensor; comparing the direction of the gaze to the position of the feature of the road; and performing a corrective action in response to determining that the direction of the gaze does not correspond to the position of the feature of the road.Type: GrantFiled: September 19, 2019Date of Patent: August 30, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Donald K. Grimm, BeƱat Irastorza-Ugalde, Guillaume Trehard
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Patent number: 11427102Abstract: A method of autonomously charging an electric vehicle having a charge port is provided. The method comprises providing an electric charge system having a first controller and a second controller. The first controller is in communication with an electric charger and a movable charge arm. The movable charge arm is connected to the electric charger extends to an arm end comprising a charge plug and a camera. The movable charge arm has an idle position defining a charging zone and is movable via a predetermined number of degrees of freedom to connect the charge plug with the charge port for electrically charging the electric vehicle. The second controller disposed in the vehicle and in communication with the first controller. The method further comprises aligning the charge port with the charging zone by vehicle movement and aligning the charge plug with the charge port by the charge arm movement.Type: GrantFiled: October 28, 2020Date of Patent: August 30, 2022Assignee: GM Global Technology Operations LLCInventors: Xiang Zhao, Ningjian Huang
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Patent number: 11427052Abstract: A glass panel apparatus is provided. The glass panel apparatus includes an outer glass pane comprising a low-e coating on a side facing the inner glass pane, an inner glass pane comprising a low-e coating on a side facing the outer glass pane, a gap between the inner glass pane and the outer glass pane, the gap comprising a vacuum, and a heating element configured to heat the inner glass pane.Type: GrantFiled: March 21, 2019Date of Patent: August 30, 2022Assignee: GM Global Technology Operations LLCInventors: Shailendra Kaushik, Taeyoung Han, Bahram Khalighi
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Patent number: 11428782Abstract: Systems and methods to perform object surface estimation using a radar system involve receiving reflected signals resulting from reflection of transmit signals by an object. The method includes processing the reflected signals to obtain an image. The image indicates an intensity associated with at least one set of angle values and a set of range values. The method also includes processing the image to provide the object surface estimation. The object surface estimation indicates a subset of the at least one set of angle values and associated ranges within the set of range values.Type: GrantFiled: May 2, 2019Date of Patent: August 30, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Oded Bialer, Tom Tirer, David Shapiro, Amnon Jonas
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Patent number: 11428541Abstract: A calibration system for a camera and an inertial sensor, respectively rigidly affixed to a vehicle, includes a controller having a processor and tangible, non-transitory memory on which instructions are recorded. The camera is adapted to capture one or more images and the inertial sensor is adapted to obtain motion data, including an angular velocity vector of the vehicle. The controller is configured to receive respective data from the camera and the inertial sensor. The controller is configured to perform adaptive feature selection on the one or more images, including extracting one or more regions of interest respectively from the images and calculating a respective optimal quality level for each of the regions of interest. The camera is aligned to the inertial sensor based in part on the adaptive feature selection and the respective data from the inertial sensor.Type: GrantFiled: May 25, 2021Date of Patent: August 30, 2022Assignee: GM Global Technology Operations LLCInventors: Mohsen Khalili, Hao Yu, Wende Zhang
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Publication number: 20220271697Abstract: An electric drive system includes a rechargeable energy storage unit, a power inverter, an electric motor and a controller having a processor and tangible, non-transitory memory on which instructions are recorded. A transfer of electrical power between the rechargeable energy storage unit and the electric motor is governed by a pulse width modulation (PWM) switching frequency. The controller is configured to determine a current switching frequency based in part on a PWM type, a PWM switching frequency style and an inverter direct current voltage. A PWM scalar is determined based in part on the current switching frequency and a maximum value of a control reference frequency. The controller is configured to transmit a command signal to regulate the transfer of electrical power based in part on the PWM scalar, the PWM switching frequency being proportional to a product of the PWM scalar and the control reference frequency.Type: ApplicationFiled: February 25, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kerrie M. Spaven, Brent S. Gagas, Brian A. Welchko
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Publication number: 20220266366Abstract: A hybrid threading tap includes a reamer portion and a thread cutting portion having a plurality of cutting teeth. The thread cutting portion is arranged with the reamer portion along the longitudinal axis. The reamer portion is configured to be advanced within a hole of a workpiece to plastically deform and expand the hole to an expanded hole and provide the expanded hole with a zone of residual compressive stress. The plurality of cutting teeth is configured to cut a threading into the expanded hole within the zone.Type: ApplicationFiled: February 22, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Lokesh Choudhary, Tiruttani Munikamal, Qigui Wang, David A. Wulbrecht
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Publication number: 20220267886Abstract: Presented are lithium-metal electrodes for electrochemical devices, systems and methods for manufacturing lithium-metal foils, and vehicle battery packs containing battery cells with lithium-metal anodes. A method of melt spinning lithium-metal foils includes melting lithium (Li) metal stock in an actively heated vessel to form molten Li metal. Using pressurized gas, the molten Li metal is ejected through a slotted nozzle at the base of the vessel. The ejected molten Li metal is directly impinged onto an actively cooled and spinning quench wheel or a carrier sheet that is fed across a support roller underneath the vessel. The molten Li metal is cooled and solidified on the spinning wheel/carrier sheet to form a Li-metal foil. The carrier sheet may be a polymeric carrier film or a copper current collector foil. An optional protective film may be applied onto an exposed surface of the Li-metal foil opposite the carrier sheet.Type: ApplicationFiled: February 19, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael P. Balogh, Jin Liu, Ryan C. Sekol, Shaomao Xu, Erik D. Huemiller
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Publication number: 20220271268Abstract: A method for fabricating an anode for a lithium ion battery cell is described and includes forming a solid electrolyte interface (SEI) layer on a raw anode prior to assembly into a battery cell by applying a first SEI-generating electrolyte to the raw anode to form a first intermediate anode, applying a second SEI-generating electrolyte to the first intermediate anode to form a second intermediate anode, and applying a third SEI-generating electrolyte to the second intermediate anode to form a cell anode, wherein the cell anode includes the raw anode having the SEI layer. Thus, a cell anode is formed by sequentially applying SEI-generating electrolytes to a raw anode to form the cell anode with an SEI layer, and a lithium ion battery cell is formed by assembling the cell anode into a cell pack, with a cathode, and a separator, and adding a cell electrolyte prior to sealing.Type: ApplicationFiled: February 19, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jin Liu, Jiazhi Hu, Raffaello Ardanese, Ryan C. Sekol, Lei Wang, Michael P. Balogh
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Publication number: 20220271552Abstract: A method for adapting a usage level of a battery pack includes measuring cell sense data for each respective battery cell using a cell sense circuit, the cell sense data including a cell voltage, current, and temperature. The method includes processing the cell sense data, for each respective battery cell, through multiple battery state functions of a controller to generate numeric cell degradation values (CDVs). The battery state functions are calibrated relationships of the cell sense data to predetermined battery fault conditions. Thereafter, the method includes automatically adapting the usage level of the battery pack during operation of the battery pack, via the controller, based on the numeric CDVs. An electric powertrain system includes the battery pack, cell sense circuit, a rotary electric machine, and a controller configured to execute the above method.Type: ApplicationFiled: February 25, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James C. Gibbs, Andrew M. Zettel, Calvin Goodman, Rajesh Nagappala
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Publication number: 20220266802Abstract: A sensor assembly includes a sensor and a cover disposed adjacent to the sensor to protect the sensor. The cover has an inner cover surface and an outer cover surface opposite the inner cover surface. The inner cover surface faces the sensor, and the outer cover surface faces away from the sensor. The cover has a first end wall and a second end wall apart from the first end wall along a first direction. The sensor assembly includes a cleaning system having a wiper movable along the outer cover surface of the cover in the first direction to clean to the outer cover surface. The wiper is at least partly made of a wiper material, and the wiper material includes a hydrophilic material to facilitate removal of water from the outer cover surface of the cover.Type: ApplicationFiled: February 23, 2021Publication date: August 25, 2022Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Zhe Li, Yuchuan Liu, Bo Yang, Julien P. Mourou
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Patent number: 11420523Abstract: Presented are high-voltage electrical systems with optimized pulse width modulation (PWM) control, methods for making/using such systems, and vehicles with enhanced electric drive capabilities via PWM type and frequency control. A method of operating an electrical system includes an electronic controller determining a PWM region layout with multiple PWM regions arranged in a torque-speed curve calibrated to an electric motor and power inverter. The controller selects one of the PWM regions based on a speed and torque of the motor, and selects a PWM type based on this selected PWM region. The controller selects a PWM switching frequency style based on the selected PWM region, and selects a PWM switching frequency based on the selected PWM region, switching frequency style, and PWM type. The controller commands a power inverter to regulate transfer of electrical power between a rechargeable battery and the motor based on the PWM type and switching frequency.Type: GrantFiled: September 25, 2020Date of Patent: August 23, 2022Assignee: GM Global Technology Operations LLCInventors: Brent S. Gagas, Brian A. Welchko, Kerrie M. Spaven
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Patent number: 11424442Abstract: A method of making a negative electrode material for an electrochemical cell that cycles lithium ions is provided that includes centrifugally distributing a molten precursor comprising silicon and lithium by contacting the molten precursor with a rotating surface in a centrifugal atomizing reactor. The molten precursor is solidified to form a plurality of substantially round solid electroactive particles comprising an alloy of lithium and silicon and having a D50 diameter of less than or equal to about 20 micrometers. In certain variations, the negative electroactive material particles may further have one or more coatings disposed thereon, such as a carbonaceous coating and/or an oxide-based coating.Type: GrantFiled: December 6, 2019Date of Patent: August 23, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Bradley R. Frieberg, Xiaosong Huang, Zhongyi Liu, Mark W. Verbrugge
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Patent number: 11421114Abstract: An aqueous precursor liquid for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor liquid includes a first fluorine-containing polyol precursor having a functionality >about 2 that forms a fluorine-containing polymer component defining a first phase in the coating. The precursor liquid also includes a second precursor that forms a second component present as a second phase. The first phase can be a continuous phase and the second phase can be a discrete phase, or the second phase can be the continuous phase and the first phase can be the discrete phase. The discrete phase includes a plurality of domains each having an average size of ?to about 500 nm to ?to about 25,000 nm. A crosslinking agent, water, and optional acid or base are also present. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.Type: GrantFiled: January 29, 2020Date of Patent: August 23, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kevin J. Drummey, Adam F. Gross, Ashley M. Dustin, Anthony L. Smith, April R. Rodriguez
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Patent number: 11424581Abstract: A charge port module for an electric vehicle (EV) includes a charge port body having a first side, a second side, and an interface for mounting to an EV body. The module also includes a receptacle on the charge port body first side and configured to accept a charging plug. The module additionally includes an electrical connector on the charge port body second side, in electrical communication with the receptacle, and configured to engage an EV electrical system. The first side of the charge port body defines a channel. The module also includes a cartridge configured to slidingly engage the channel. The cartridge includes a cartridge body defining an access opening configured to facilitate charging plug access to the receptacle after the cartridge has engaged and has seated in the channel. A light element is arranged on the cartridge body and configured to illuminate the receptacle.Type: GrantFiled: March 16, 2020Date of Patent: August 23, 2022Assignee: GM Global Technology Operations LLCInventors: Matthew M. Stack, Omair Mustafa, Dayananda Narasimhaiah
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Patent number: 11420638Abstract: A vehicle and a system and method of operating a vehicle. The system includes a processor. The processor learns a driver's behavior of a driver of the vehicle as the driver navigates a road segment, creates a behavior policy based on the driver's behavior and a threshold associated with the road segment, and controls the vehicle to navigate the road segment using the behavior policy.Type: GrantFiled: January 9, 2020Date of Patent: August 23, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mohammadali Shahriari, Amir Takhmar, Reza Zarringhalam
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Patent number: 11425287Abstract: An apparatus for protecting a camera from foreign debris incudes a first body and a second body removably coupled to the first body. The first body has a first inner surface and a first outer surface opposite the first inner surface. The first inner surface defines a first cavity. The first inner surface has an inner circumference. The first body includes a protrusion extending directly from the first inner surface toward the first cavity. The protrusion extending along an entirety of the inner circumference of the first inner surface and is shaped as a half-torus. The second body has a second inner surface and a second outer surface opposite the second inner surface. The second inner surface defines a second cavity. The second cavity is in fluid communication with the first cavity to facilitate flow of the fluid from the first cavity to the second cavity.Type: GrantFiled: January 12, 2021Date of Patent: August 23, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Joel L. Smith
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Patent number: 11424635Abstract: A method for estimating a state of a battery pack using a controller having battery state estimator (BSE) logic includes receiving or delivering a constant baseline current via the battery pack. Current oscillations having time-variant frequency content are selectively injected into the baseline current via the controller in response to a predetermined condition. The baseline current and the current oscillations combine to form a final current. The method includes estimating a battery parameter via the BSE logic concurrently with the current oscillations to generate an estimated battery parameter, and estimating the present state of the battery pack via the controller using the estimated battery parameter. An electrical system includes a rotary electric machine that is electrically connected to and driven by the battery pack, and a controller configured to execute the method.Type: GrantFiled: April 27, 2020Date of Patent: August 23, 2022Assignee: GM Global Technology Operations LLCInventors: Meixian Wang, Yue-Yun Wang, Houchun Xia, Justin Bunnell, Charles W. Wampler
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Patent number: 11420656Abstract: A vehicle system comprising a plurality of subsystems, each of the plurality of subsystems configured to perform at least a portion of at least one of a plurality of functions. The plurality of functions are organized in a hierarchy of functions including complex higher order functions and simpler lower order functions. The vehicle system further comprises an advanced computing module configured to control the plurality of subsystems in order to perform a higher order function and a lower order function that supports the higher order function. The advanced computing module comprises software instructions including a first gate point. The first gate point may be activated to prevent the advanced computing module from performing the higher order function.Type: GrantFiled: July 13, 2020Date of Patent: August 23, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Joseph E. Ploucha, Kevin M. Baltes
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Patent number: 11423321Abstract: A system and method of determining system status in a vehicle system. The method including collecting, by a computing system, a plurality of data associated with a test specimen and the vehicle system, selecting a relevant data set of the plurality of data, the selecting based on at least one correlation coefficient associated with the plurality of data, and transforming at least a portion of the selected relevant data to form a transformed data set, the transforming based on mathematical properties. The method also includes collecting statistics associated with the selected relevant data set and the transformed data set to form a statistics data set, classifying the selected relevant data set, transformed data set, and the statistics data set; and predicting a status of a system based on the classifying.Type: GrantFiled: August 22, 2018Date of Patent: August 23, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alessandra Neri, Maria Camuglia, Alessia Tuninetti, Elena Baralis, Flavio Giobergia, Davide Tricarico