Patents Assigned to GM Global Technology Operations LLC
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Patent number: 11970063Abstract: Examples described herein provide a computer-implemented method that includes calculating, by a processing device, a motor acceleration error based at least in part on a motor torque and a motor speed. The method further includes calculating, by the processing device, a regression fit line based at least in part on the motor acceleration error. The method further includes identifying, by the processing device, a zero point using the regression fit line. The method further includes comparing, by the processing device, the zero point to a datum reference to determine a difference. The method further includes integrating, by the processing device, the difference to determine the lash angle. The method further includes controlling, by the processing device, the motor based at least in part on the lash angle.Type: GrantFiled: August 10, 2021Date of Patent: April 30, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Noah Jon Lovins-Wilusz, Robert L. Morris
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Patent number: 11970072Abstract: An example of a vehicle electrical system includes a rechargeable energy storage system (RESS) having a first voltage and a power inverter electrically connected to the RESS. The system further includes an electric motor having a plurality of machine windings with each of the machine windings including a polyphase terminal electrically connected to the power inverter. The electric motor further includes a neutral terminal separate from the polyphase terminals. The system further includes an accessory load electrically connected to the power inverter and the neutral terminal of the electric motor, with the accessory load requiring a second voltage that is below the first voltage. A current flows through the machine windings to step down the first voltage to the second voltage. The power inverter is configured to cycle between first and second operational states, such that the power inverter steps down the first voltage to the second voltage.Type: GrantFiled: March 22, 2021Date of Patent: April 30, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Rashmi Prasad, Chandra S. Namuduri
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Patent number: 11970154Abstract: A control system for a vehicle includes wheel slip control loop including a wheel slip controller configured to control wheel slip based on wheel speed measured at one or more wheels of the vehicle. A wheel flare control loop includes a wheel flare controller configured to control wheel flare based on transmission output speed at an output of a transmission of the vehicle. A controller is configured to select one of the wheel slip controller to control the wheel slip and the wheel flare controller to control the wheel flare during operation of the vehicle.Type: GrantFiled: September 3, 2021Date of Patent: April 30, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jie Yang, Robert L. Morris, Shaochun Ye, Vino Mathew
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Patent number: 11970078Abstract: A system in a vehicle includes memory to store values obtained for a battery that supplies current to one or more loads. The values include battery state of charge. A processor obtains a measured battery current from a battery current sensor and a measured total current from a current sensor at a battery center that supplies the current directly to the one or more loads, obtain a generator current or a direct current-to-direct current (DC-DC) converter current from the measured total current and the battery current, determine a maximum available current as a sum of a maximum available battery current and either the generator current or the DC-DC converter current, and stop a supply of the current to one or more of the one or more loads based on a result of a comparison of the maximum available current with current draw by the one or more loads.Type: GrantFiled: September 2, 2022Date of Patent: April 30, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Chandra S. Namuduri, Suresh Gopalakrishnan, Lyall Kenneth Winger
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Patent number: 11973226Abstract: A hybrid electrochemical device including at least two electrically connected solid-state electrochemical cells is provided. Each electrochemical cell includes a first outer electrode having a first current collector and a first electroactive layer, a second outer electrode having a second current collector and a second electroactive layer, and one or more intervening electrodes disposed between the electroactive layers. At least one of the intervening electrodes includes one or more capacitor additives. The first outer electrode is electrically connected to at least one of the intervening electrodes in a first electrical configuration. The second outer electrode is electrically connected to at least one of the intervening electrodes in a second electrical configuration. The at least two electrochemical cells are electrically connected in a third electrical configuration.Type: GrantFiled: October 30, 2020Date of Patent: April 30, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mengyan Hou, Haijing Liu, Qili Su, Xiaochao Que
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Publication number: 20240135795Abstract: Method of using a vehicle to alert to potential risks includes determining that a user of the vehicle will be absent; determining an estimated absence time; and sending an alert to authorities, via a control system, if the user does not return within the estimated absence time. The method may include receiving the estimated absence time from the user, or the control system of the vehicle determines the absence and the estimated absence time. The user may define the absence and input the estimated absence time through a centralized location, such that the alert is sent from the centralized location. Following expiration of the estimated absence time, detecting a pedestrian near the vehicle, and then playing a pre-recorded emergency message through speakers, such that the pedestrian is made aware of the pre-recorded emergency message. Vehicle lights/horn may operate to guide the user, possibly in decaying fashion.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Russell A. Patenaude, Michael A. Gutierrez
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Publication number: 20240131570Abstract: Presented are hybrid fixture assemblies with integrated additive manufactured features, methods for making/using such fixtures, and manufacturing systems equipped with such fixtures. A manufacturing fixture assembly includes a fixture support frame formed, at least in part, from a first material, and a fixture support shell formed, at least in part, from a second material distinct from the first material. The support frame, which seats on/mounts to a work surface, includes a skeletal substructure with multiple male connectors projecting therefrom. The skeletal substructure contains multiple first frame walls that are removably intermeshed with multiple second frame walls in a collapsible format. The support shell includes a support surface that holds a workpiece, an interface surface that abuts the skeletal substructure, and multiple female connectors that project from the interface surface.Type: ApplicationFiled: October 19, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrew Thomas Cunningham, Ali Shabbir, Hassan Ajami, Ibrahim El Khatib
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Publication number: 20240136533Abstract: The present disclosure provides electrode assemblies for safe nondestructive testing in ambient conditions. In certain variations, the electrode assembly includes a current collector and a non-reactive lithium mimic material disposed on or near one or more surfaces of the current collector or embedded in the current collector. In other variations, the electrode assembly includes include a current collector, a lithium metal material disposed on or near one or more surfaces of the current collector or embedded in the current collector to form an electrode assembly, and a non-conductive pouch holding the electrode assembly.Type: ApplicationFiled: October 23, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Robin JAMES, Megan E. MCGOVERN, Dmitriy BRUDER, Whitney Ann POLING, Erik Damon HUEMILLER, Shaomao XU, Caleb REESE
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Publication number: 20240135819Abstract: An object detection and predictive motion warning system for a vehicle. The system may include a plurality of weight sensors configured to generate weight values in response to pressure being applied thereto and an object detection and predictive motion controller configured to detect an object within the vehicle and to predict a motion assessment for the object as function thereof.Type: ApplicationFiled: October 19, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Umer Khalid, Russell A. Patenaude
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Publication number: 20240132056Abstract: Methods and systems are provided for controlling alignment of a vehicle during parking that include obtaining sensor data via one or more sensors of a vehicle, as to passenger occupancy of the vehicle and as to a parking location for the vehicle; identifying, via a processor of the vehicle, which passenger seats of the vehicle are occupied, based on the sensor data; identifying, via the processor, the parking location based on the sensor data; and determining, via the processor, an offset for parking of the vehicle in the parking location, based at least in part on which passenger seats of the vehicle are occupied.Type: ApplicationFiled: October 18, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Patrick Giancarlo Gabriel DiGioacchino, Utkarsh Saini, Fred W. Huntzicker
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Publication number: 20240136507Abstract: An electroactive material for an electrochemical cell that cycles lithium ions is provided. The electroactive material includes a plurality of atomic layers and a plurality of cations disposed between the atomic layers. The plurality of atomic layers includes an atom selected from the group consisting of: silicon, germanium, boron, and combinations thereof. The plurality of cations is selected from the group consisting of: calcium, magnesium, zinc, copper, nickel, potassium, sodium, and combinations thereof. A ratio of the cations to atoms that define the atomic layer may be less than about 1:2.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jeffrey David CAIN, Nicholas Paul William PIECZONKA, Anil K. Sachdev
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Publication number: 20240136534Abstract: An electrode assembly includes a current collector, a lithium metal foil, and an alloyed interface that chemically binds the current collector and the lithium metal foil. In certain variations, the alloyed interface includes an intermediate layer disposed between the current collector and the lithium metal foil, a portion of the current collector adjacent to the intermediate layer is alloyed with the indium, gallium, or alloy of indium and gallium defining the intermediate layer, and a portion of the lithium metal foil adjacent to the intermediate layer is alloyed with the indium, gallium, or alloy of indium and gallium defining the intermediate layer. In other variations, the alloyed interface includes a copper-lithium alloy.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Diptak BHATTACHARYA, Caleb REESE, Thomas E. MOYLAN, Andrew Clay BOBEL, Anil K. SACHDEV
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Publication number: 20240136612Abstract: An apparatus including a battery cell includes an electrode stack. The electrode stack includes an anode electrode, a cathode electrode, and a separator disposed between the anode electrode and the cathode electrode. The apparatus further includes an enclosure configured for encasing and mechanically protecting the electrode stack. The apparatus further includes an electrolyte. The apparatus further includes a thermally conductive and electrically insulated inert fill material located between the electrode stack and the enclosure configured for providing a thermally conductive connection between the electrode stack and the enclosure.Type: ApplicationFiled: October 19, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Liang Xi, Andrew P. Oury, Li Yang, SriLakshmi Katar
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Publication number: 20240135756Abstract: Systems and methods are provided for vehicular computation management. The system includes, onboard a vehicle, electric control units (ECUs), a battery, a communication system, and a controller. The controller is configured to monitor energy consumption, operate the vehicle as a computational hub when the energy consumption is less than a threshold, including providing computational resources to an external node, determine whether the vehicle has excess energy and computational capacity when the energy consumption is equal to or greater than the threshold, including determining a usage of each of the ECUs and determining an energy consumption of tasks executing thereon, and operate the vehicle as a hybrid computational hub when the vehicle has excess energy and computational capacity, including providing excess computational capacity of the ECUs to the external node.Type: ApplicationFiled: October 23, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Naga Siva Vikas Vemuri, Chandra S Namuduri, Andrew J. MacDonald, Omer Tsimhoni, Ashhad Mohammed
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Publication number: 20240131991Abstract: Methods and systems are provided for displaying a scene for a vehicle towing a trailer. A method includes: determining, by the processor, an angle of the trailer relative to the vehicle; determining, by the processor, a simulated trailer based on the angle of the trailer; determining, by the processor, a projection matrix based on the simulated trailer; generating, by the processor, scene data based on image data from a camera of the vehicle and image data from a camera of the trailer using the projection matrix; and generating, by the processor, display data to display the scene to an occupant of the vehicle based on the scene data.Type: ApplicationFiled: October 23, 2022Publication date: April 25, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Yovav Cohen Tene
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Patent number: 11964567Abstract: A propulsion control system has an electric motor configured to generate an axle torque in response to a final torque command, and has a motor constraint that specifies a maximum torque. A motor controller is configured to generate the final torque command in response to an intermediate torque command and a distributed power limit command. An open-loop function in supervisory controller is configured to calculate an initial torque command vector in response to a driver torque command, calculate an intended operating vector by mapping the initial torque command vector into a multidimensional power space, generate the intermediate torque command by clipping the intended operating vector in response to the motor constraint, generate a constrained command vector by clipping the intended operating vector in response to the motor constraint and a plurality of energy storage constraints, and generate the distributed power limit command in response to the constrained command vector.Type: GrantFiled: January 19, 2021Date of Patent: April 23, 2024Assignee: GM Global Technology Operations LLCInventors: Rashad K. Maady, Krunal P. Patel, Matthew Yard, Kristopher D. Lang
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Patent number: D1023881Type: GrantFiled: December 1, 2022Date of Patent: April 23, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Louis D. Thole, Gary W. Ruiz, Jingxu Zhan, Raphael M. Molina
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Patent number: D1023882Type: GrantFiled: January 27, 2023Date of Patent: April 23, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Tyler L. H. Moffett
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Patent number: D1024377Type: GrantFiled: November 15, 2022Date of Patent: April 23, 2024Assignee: GM Global Technology Operations LLCInventors: Shyam K. Alepalli, Raphael M. Molina
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Patent number: D1024893Type: GrantFiled: March 23, 2022Date of Patent: April 30, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Adam K. Scenna