Patents Assigned to GM
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Publication number: 20240085490Abstract: A system for monitoring a battery module having a plurality of cells includes a sensor adapted to obtain respective cell voltages of the plurality of cells. The controller is adapted to receive data from the sensor, the controller having a processor and tangible, non-transitory memory on which instructions are recorded. The controller is configured to sort the respective cell voltages to create a voltage ranking. The voltage ranking is repeated with at least one new set of cell voltage readings obtained at a predefined checking frequency. Differences in the voltage ranking of the plurality of cells are analyzed. The controller is adapted to control operation of the battery module based in part on differences in the voltage ranking. The controller may be adapted to predict likelihood of a thermal runway event based in part on the differences in the voltage ranking.Type: ApplicationFiled: September 9, 2022Publication date: March 14, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Fang Wang, Yue-Yun Wang, Anthony P. Tata
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Publication number: 20240088568Abstract: An optically transparent coplanar microwave slot antenna formed between a first glass layer and a second glass layer is provided including a metal oxide layer, a first slot element and a second slot element formed in a dipole arrangement within the metal oxide layer wherein the first slot element is formed by a first triangular slot, a first trapezoidal slot, and a first rectangular slot and the second slot element is formed by a second triangular slot, a second trapezoidal slot, and a second rectangular slot, and a waveguide feedline for carrying microwave signals to the first slot element and the second slot elementType: ApplicationFiled: September 9, 2022Publication date: March 14, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sara Kaffash, Farhad Sheikh Hosseini Lori, William Hsiahua Wang, Hongguang Sun
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Publication number: 20240088521Abstract: A separator for an electrochemical cell that cycles lithium ions includes a microporous layer and one or more fire suppression layers disposed on at least one of a first side or an opposite second side of the microporous layer. The one or more fire suppression layers include crosslinked cyclopolyphosphazene particles.Type: ApplicationFiled: August 26, 2022Publication date: March 14, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yifan ZHAO, Xingcheng XIAO
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Publication number: 20240088430Abstract: A hybrid solid-state electrolyte layer for use in an electrochemical cell is provided. The hybrid solid-state electrolyte layer includes a polymeric material, a ceramic material, and an interfacial material adhering the polymeric material and the ceramic material. The interfacial material includes a branched copolymer that includes dopamine and a second monomer. The second monomer forms a polymeric moiety in the copolymer that is the same or similar to the polymeric material. In certain variations, the polymeric material defines a polymeric layer, the ceramic material defines a ceramic layer, and the interfacial material defines an interfacial layer that is disposed between the polymeric layer and the ceramic layer. In other variations, the polymeric material defines a polymeric matrix, the ceramic material defines a plurality of ceramic particles dispersed in the polymeric matrix, and the plurality of ceramic particles are coated with the interfacial material.Type: ApplicationFiled: August 26, 2022Publication date: March 14, 2024Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, WAYNE STATE UNIVERSITYInventors: Fan XU, Robert D. SCHMIDT, Mei CAI, Manuela Ferreira BORRAS, Yingxi Elaine ZHU
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Publication number: 20240088710Abstract: In accordance with exemplary embodiments, methods and systems are provided for providing electrical power for a manufacturing facility for manufacturing of a vehicle, the vehicle having a rechargeable energy storage system (RESS) and a processor, including: positioning the vehicle at the manufacturing facility, the manufacturing facility having an electrical component; and providing electrical power from the RESS of the vehicle to the electrical component of the manufacturing facility, in accordance with instructions provided by the processor.Type: ApplicationFiled: September 14, 2022Publication date: March 14, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael R. Kaphengst, Seog-Chan Oh, Joshua Lee Solomon, James W. Wells, Alfred Manser, Barry L. Farmer
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Publication number: 20240083230Abstract: Systems and methods provide active control of rotor cooling. In a number of embodiments, a system includes a controller coupled with an electric machine having a rotor. The controller evaluates parameters related to the electric machine for flow rate requirements of the rotor, where the flow rate requirements relate to cooling of the rotor. A flow rate of a fluid for cooling the rotor is computed, where the flow rate is based on a composite of the flow rate requirements. A control valve signal is delivered to set a control valve to supply the flow rate to the rotor based on the parameters.Type: ApplicationFiled: September 9, 2022Publication date: March 14, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jared Lee, Robert Seungmo Lee, Jeffrey R. Kelly, Addison T. Solak
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Patent number: 11926221Abstract: A method for controlling transient operation of a variable flux machine (VFM) includes, during a shunt angle transition, receiving a commanded and measured shunt angle when operating in a predetermined operating region, e.g., maximum torque per ampere or field weakening. The method includes calculating d-axis and q-axis delta current terms (?Id and ?Iq) required to maintain an output torque level of the VFM through a duration of the shunt angle transition, then applying the required ?Id and ?Id terms as feed-forward terms to adjust a d-axis current (Id) term and a q-axis current (Iq) term from a respective lookup table. In this manner the controller maintains the output torque level of the VFM during the shunt angle transition. An electric powertrain includes the VFM, a TPIM, and the controller. A PM machine may be controlled by substituting temperature for shunt angle.Type: GrantFiled: September 24, 2020Date of Patent: March 12, 2024Assignee: GM Global Technology Operations LLCInventors: Xin Jing, Bojian Cao, Brent S. Gagas
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Patent number: 11926174Abstract: A casting system includes a casting for an automobile vehicle having an interior section. Multiple central portions are individually positioned in one of multiple areas of the interior section completely encapsulated by a metal of the casting. An insert member is positioned in individual ones of the multiple central portions, the insert member having a higher melting point than a melting point of a metal of the casting the insert member displaces.Type: GrantFiled: December 23, 2021Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Frank D. Risko, Lora Dawn Herron
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Patent number: 11928992Abstract: A system for calibrating a display for a vehicle includes a reference calibration system including a reference windscreen and a reference transparent windscreen display (TWD) projector including a reference TWD camera. The reference calibration system also includes a reference camera and a reference controller in electrical communication with the reference TWD projector and the reference camera. The reference controller is programmed to project a reference graphic on the reference windscreen using the reference TWD projector. The reference controller is further programmed to capture a first reference image of the reference graphic using the reference camera. The reference controller is further programmed to calculate at least one reference calibration matrix based at least in part on the first reference image of the reference graphic.Type: GrantFiled: April 3, 2023Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Thomas A. Seder, Joseph F. Szczerba, John P. Weiss, Manoj Sharma
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Patent number: 11929475Abstract: A device for thermal control of a battery system includes a heating control module electrically connected to the battery system and a conversion device configured to control power output from the battery system. The heating control module is configured to measure a current through the conversion device, the measured current provided by the battery system of a vehicle during vehicle operation or provided by an energy source during vehicle charging. The heating control module is also configured to control the conversion device to generate an alternating current (AC) heating current using the measured current, and apply the AC heating current to the battery system to heat the battery system to a desired temperature.Type: GrantFiled: June 23, 2022Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Neeraj S. Shidore, Chandra S. Namuduri, Lei Hao, Shuonan Xu, Suresh Gopalakrishnan, Satish P. Ketkar, Daniel Robert Tylutki
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Patent number: 11926491Abstract: An emblem installation system for installing emblems on a work piece includes an end effector for a robotic arm. The end effector has a base and multiple vacuum gripper modules repositionable along the base in different configurations. The vacuum gripper modules are configured to simultaneously grip multiple emblems and individually release the emblems. An emblem installation method includes applying a force within a first range of forces to the multiple emblems individually and in succession via vacuum gripper modules of an end effector on a robotic arm, with the emblems disposed at a first location, applying a vacuum to the vacuum gripper modules to grip the emblems with the vacuum gripper modules, and moving the robotic arm from the first location to a second location adjacent a workpiece with the emblems gripped by the vacuum gripper modules.Type: GrantFiled: January 14, 2021Date of Patent: March 12, 2024Assignee: GM Global Technology Operations LLCInventors: Wuhua Yang, Roberto E. Hirayama, Terebara A. Hughes
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Patent number: 11927231Abstract: A brake rotor having a composite structure may include an annular body defining opposite friction surfaces of the brake rotor. The annular body may include a core made of an Al—Si alloy, a thermal barrier layer made of a thermally insulating material disposed on the core, and a wear-resistant layer made of an Fe—Al—Si—Zr alloy disposed on the core over the thermal barrier layer. The wear-resistant layer may define a first one of the opposite friction surfaces of the annular body.Type: GrantFiled: July 12, 2022Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Heewook Lee, Zhongyi Liu, Anil K. Sachdev, Tyson Whittier Brown, Ratandeep Singh Kukreja
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Patent number: 11929615Abstract: A system includes a battery system including a plurality of batteries and configured to be selectively coupled to and charged by a renewable energy source and selectively coupled to and charged by a power grid. The system further includes a DC bus shared by a plurality of loads and an energy management system connected between the battery system and the plurality of loads. The energy management system is configured to selectively connect individual ones of the plurality of batteries to at least one of the plurality of loads via the DC bus, selectively connect the battery system to the power grid and disconnect the battery system from the power grid, and selectively connect at least one of the plurality of loads directly to the power grid.Type: GrantFiled: February 11, 2022Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad Atluri, Ian J. Sutherland, Paul M. Najt, Chandra S. Namuduri
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Patent number: 11926130Abstract: A composite panel includes a backing substrate and a first plurality of fiber tows. The first plurality of fiber tows is stitched to a first surface of the backing substrate in a predetermined pattern to form a fiber reinforced insert. A first polymer layer encapsulates the first surface of the backing substrate and the first plurality of fiber tows.Type: GrantFiled: August 30, 2022Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Bradley Allen Newcomb, Thomas S. Prevost, Bhavesh Shah, Julien P Mourou, Xiaosong Huang
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Patent number: 11926370Abstract: A cargo bed extension system includes: a cargo bed; a tailgate configured to pivot to a down position via one or more first hinges, where the tailgate includes: an outer portion having first lateral sides and one or more second hinges; an inner portion having second lateral sides that are disposed adjacent to the first lateral sides when the tailgate is in the down position, where the inner portion is configured to rotate to a vertical position via the one or more second hinges, where the vertical position is approximately perpendicular to the down position; at least one first extension panel configured to move rearwardly and directly contact the inner portion when the inner portion is in the vertical position; and at least one second extension panel configured to move rearwardly and to directly contact the inner portion when the inner portion is in the vertical position.Type: GrantFiled: June 10, 2021Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Blaine D. Christensen, William A. McDonald, Carl J. Zipfel
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Patent number: 11926886Abstract: A master alloy including an alloy composition including magnesium (Mg) at a concentration of greater than or equal to about 1.00 wt. % to less than or equal to about 90 wt. %, boron (B) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 20 wt. %, and aluminum (Al) at a concentration of greater than or equal to about 0.1 wt. % to less than or equal to about 90 wt. %, wherein the alloy composition includes MgB2 particles at a volume fraction greater than or equal to about 0.01% to less than or equal to about 20%.Type: GrantFiled: December 30, 2021Date of Patent: March 12, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Henry Zhan, Congjie Wang
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Publication number: 20240079649Abstract: An electrochemical cell that cycles lithium ions is provided. The electrochemical cell may include a first porous electrode, a second porous electrode, and a separating layer disposed between the first electrode and the second electrode. The first porous electrode includes an electrolyte intermingled with a nickel-rich positive electroactive material. The second porous electrode includes the electrolyte intermingled a silicon-based negative electroactive material. The electrolyte includes greater than or equal to about 1 wt. % to less than or equal to about 3 wt. % of an electrolyte additive and a solvent mixture. The electrolyte additive may be selected from the group consisting of: succinic anhydride (SA), maleic anhydride, N-carboxyanhydride, glutaric anhydride, isatin anhydride, citraconic anhydride, and combinations thereof. The solvent mixture may include ethylene carbonate (EC) and dimethyl carbonate (DMC) in mass ratio of about 3:7.Type: ApplicationFiled: September 1, 2022Publication date: March 7, 2024Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Chuanlong WANG, Xiaosong HUANG
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Patent number: D1017489Type: GrantFiled: July 22, 2022Date of Patent: March 12, 2024Assignee: GM Global Technology Operations LLCInventor: Ramesh R. Gound
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Patent number: D1017500Type: GrantFiled: March 18, 2021Date of Patent: March 12, 2024Assignee: GM Global Technology Operations LLCInventor: Adam K. Scenna
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Patent number: D1017950Type: GrantFiled: December 17, 2021Date of Patent: March 12, 2024Assignee: GM CRUISE HOLDINGS LLCInventors: Timothy Jon Meador, Alexis DeStasio, Matthew Martin