General Motors Patents
General Motors Company designs, builds and sells cars, trucks and automobile parts worldwide. Its main brands include Buick, Cadillac, Chevrolet and GMC. Outside of North America, it also markets vehicles under the Holden, Open and Vauxhall. In Asia, subsidiaries also design, manufacture, and market vehicles under the Alpheon, Baojun, Jiefan ang Wuling brands. The company provides automotive financing services through GM Financial.
General Motors Patents by Type- General Motors Patents Granted: General Motors patents that have been granted by the United States Patent and Trademark Office (USPTO).
- General Motors Patent Applications: General Motors patent applications that are pending before the United States Patent and Trademark Office (USPTO).
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Publication number: 20230299705Abstract: The disclosure includes a control system for a multi-phase electric machine that includes an inverter configured to transfer electric energy from a rechargeable energy storage device (RESS), and phase current sensors. A controller includes an executable instruction set to monitor, via the phase current sensors, the phase currents, and detect that one of the phase currents is outside a linear measurement range of a respective one of the phase current sensors. An extrapolated current for the respective one of the phase current sensors is determined based upon the phase currents from others of the phase current sensors. A current extrapolation routine evaluates the respective one of the phase current sensors. A fault is detected in the respective one of the phase current sensors based upon the current extrapolation routine and the extrapolated current.Type: ApplicationFiled: March 21, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Brent S. Gagas, Brian A. Welchko
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Publication number: 20230296448Abstract: A monitoring system for a multi-cell rechargeable energy storage system (RESS) that includes a plurality of battery cells is described. The monitoring system includes a sensor that is arranged to monitor one or multiple heat transfer plates thermally coupled to the plurality of battery cells, a controller is in communication with the sensor. The controller including an instruction set that is executable to monitor, via the sensor, a parameter of the heat transfer plate and detect a thermal runaway event when the parameter of the heat transfer plate exceeds a threshold. The thermal runaway event is communicated to a battery controller.Type: ApplicationFiled: March 17, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ryan P. Hickey, Kristopher A. Thor, David R. Clark
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Publication number: 20230299342Abstract: A free-standing electrolyte layer for use in an electrochemical cell is provided. The free-standing electrolyte layer includes a plurality of solid-state electrolyte particles, a (first) ionic liquid that surrounds each solid-state electrolyte particle of the plurality of solid-state electrolyte particles, and a plurality of polytetrafluoroethylene fibrils that provides a structural framework for the solid-state electrolyte particles. The free-standing electrolyte layer has an ionic conductivity greater than or equal to about 0.1 mS/cm at 40° C., and a thickness greater than or equal to about 5 micrometers to less than or equal to about 500 micrometers. Each of the polytetrafluoroethylene fibrils of the plurality of polytetrafluoroethylene fibrils has an average length of greater than or equal to about 2 micrometers to less than or equal to about 100 micrometers.Type: ApplicationFiled: August 9, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Zhe LI, Yong LU, Meiyuan WU, Haijing LIU
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Publication number: 20230299404Abstract: A battery cell pack has a plurality of battery cells that are assembled into a prismatic frame, with deformable separators interposed to accommodate elastic and plastic deformation caused by cyclic and acyclic expansion and contraction thereof during charging and discharging over the life of the battery cell pack. The battery cells are arranged in a horizontal stack within the prismatic frame, and the deformable separators are interposed between subsets of the battery cells. The deformable separators exert compressive force on the subsets of the battery cells along a longitudinal axis that is defined by the horizontal stack. The compressive force exerted by the deformable separators is at least a minimum force over a service life of the battery cell pack.Type: ApplicationFiled: March 15, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrew C. Bobel, Anil K. Sachdev, Patrick H. Clark, Pooja Suresh, Ran Wu, Jermain E. Onye, William Y. Chen, Li Yang, Chao Hu, Yunshan Liu, Kuo Sun
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Publication number: 20230299379Abstract: A battery module includes a first pouch battery cell and a neighboring second pouch battery cell. The battery module also includes a dielectric fluid in direct contact with and in circulation over and around each of the first and second pouch cells. The battery module additionally includes an immersion barrier positioned between the first and second pouch cells and defining an opening for controlling passage of the dielectric fluid between the first and the second pouch cells. The barrier thereby facilitates localization of a thermal runaway event in the first pouch cell by minimizing transfer of high temperature gases between the first and the second pouch cells via the dielectric fluid and controls propagation of the thermal runaway event in the module. The battery module further includes an enclosure housing and retaining each of the first and second pouch cells, the dielectric fluid, and the immersion barrier.Type: ApplicationFiled: March 17, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ryan P. Hickey, Matthew Swift, Goro Tamai
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Publication number: 20230299320Abstract: A distribution method and system for a plurality of fuel cell systems (FCSs) configured to provide electrical energy. The distribution being configured for determining a demand of a load for the electrical energy and correspondingly implementing a powering operation. The powering operation executing a startup operation according to a startup order specified for one or more secondary FCSs of the FCSs. The powering operation including individually performing the startup operations for each of the secondary FCSs according to the startup order, and while each of the second FCSs are performing the startup operation, controlling another one or more of the FCSs to mask a power variance associated therewith.Type: ApplicationFiled: March 21, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Matthew C. Kirklin, Alan B. Martin, Biju Edamana
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Publication number: 20230299365Abstract: A method for constant pressure regulation of battery cells includes disposing the cells in a stacked arrangement within a battery cell placement volume of an apparatus configured to maintain a constant pressure on the cells, providing a gas pressure within a chamber of the apparatus, thereby causing an initial pressure to be applied on the battery cells, and detecting an expansion of the battery cells during a predetermined timespan using a linear displacement sensor. During the predetermined timespan, if the detected expansion is less than a maximum allowable expansion minus a predetermined measurement error, then the gas pressure within the chamber is increased, and if the detected expansion is greater than the maximum allowable expansion plus the predetermined measurement error, then the gas pressure within the chamber is decreased. An apparatus for constant pressure regulation of battery cells is also provided.Type: ApplicationFiled: March 16, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Herman K. Phlegm, Srikanth Arisetty, Rajesh K. Bhagirath, Edgar P. Calderon
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Publication number: 20230294670Abstract: Presented are adaptive operator assistance systems for motor-assisted manually powered (MMP) vehicles, methods for making/using such systems, and electric scooters equipped with such systems. A method of operating an MMP vehicle using a handheld mobile computing device (MCD) includes the handheld MCD receiving path plan data for the MMP vehicle and then receiving, based on this path plan data, MMP-specific ambient data that is aligned with the vehicle's present location and contains surrounding environment data particular to the MMP vehicle. A wireless location device of the handheld MCD tracks the MMP vehicle's real-time location, and a sensing device of the handheld MCD detects MMP-specific threat data that is aligned with the vehicle's real-time location and contains user danger data particular to the MMP vehicle. The handheld MCD then commands a resident subsystem of the MMP vehicle to execute a control operation based on the MMP-specific ambient data and/or threat data.Type: ApplicationFiled: March 18, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Christopher L Oesterling, Anthony J. Sumcad, Russell A Patenaude
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Publication number: 20230297663Abstract: A method and system for authenticating soft part updates to an electronic control unit (ECU) or other processing device is contemplated. The authenticating may include a back office providing authentication data to a programming tool whereupon the ECU interacts with the programming tool to authenticate the soft part updates. The authenticating may optionally include the ECU identifying whether the soft part update is to be authenticated according to different types of authentications.Type: ApplicationFiled: March 17, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Brian Farrell
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Publication number: 20230298355Abstract: Systems and methods for generating alignment parameters for processing data associated with a vehicle. In one embodiment, a method includes: receiving image data associated with an environment of the vehicle; receiving lidar data associated with the environment of the vehicle; processing, by a processor, the image data to determine data points associated with at least one vehicle identified within image data; processing, by the processor, the lidar data to determine data points associated with at least one vehicle identified within the lidar data; selectively storing the data points in a data buffer based on at least one condition associated with a quality of the data points; processing, by the processor, the data points in the data buffer with a joint analysis method to generate alignment parameters between the lidar and the camera; and processing future data based on the alignment parameters.Type: ApplicationFiled: March 18, 2022Publication date: September 21, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yousef Omar, Mark Wolski, Hao Yu, Wende Zhang
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Publication number: 20230291020Abstract: A battery cell monitoring system provides a direct measurement of electrical and heat distributions in a battery cell, using segmented elements that are in direct contact with an electrode of the battery. The battery cell monitoring system provides distributed local through-plane current, temperature, and pressure measurements with power for operation of the battery being supplied via battery tabs. An embodiment of a battery cell monitoring system includes a two-dimensional current collector array, a two-dimensional temperature sensor array, a plurality of pressure sensors, and a plurality of reference electrodes interspersed within the current collector array. The current collector array, the temperature sensor array, the pressure sensors, and the reference electrodes are arranged on a printed circuit board. The current collector array is configured to have direct physical contact with an electrode of the battery cell. The current collector array is disposed within a container of the battery cell.Type: ApplicationFiled: March 10, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yun Cai, Xingcheng Xiao, Yeh-Hung Lai, Taylor R. Garrick, Leng Mao
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Publication number: 20230290922Abstract: A battery system includes a battery cell, which includes an anode including a first current collector and an anode layer disposed on the first collector and including an anode active material. The cell includes a cathode including a second current collector and a cathode layer disposed on the second collector and including a cathode active material. The cell includes a solid-state electrolyte including one of a reduction tolerable solid electrolyte disposed in contact with the anode and an oxidation tolerable solid electrolyte disposed in contact with the cathode. The reduction tolerable solid electrolyte is present in an amount of from 0.1 part by weight to 5 parts by weight based upon 100 parts by weight of the anode layer. The oxidation tolerable solid electrolyte is present in an amount of from 1 part by weight to 10 parts by weight based upon 100 parts by weight of the cathode layer.Type: ApplicationFiled: May 5, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yong Lu, Zhe Li, Meiyuan Wu, Haijing Liu
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Publication number: 20230286550Abstract: In accordance with an exemplary embodiment, a method is provided that includes: obtaining sensor data via one or more sensors of a vehicle; determining, via a processor of the vehicle, a driving style of a driver of the vehicle based on use of the sensor data over multiple periods of time; and determining, via the processor, an indication as to whether the driver is attempting to spoof a control system of the vehicle with respect to one or more automated features of the vehicle, based on the sensor data and the style of the driver.Type: ApplicationFiled: March 9, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Mohammadali Shahriari, Reza Zarringhalam, Ashraf Abualfellat, Emily Frances Wolfangel, Nathan Fujimoto, Adam M. Mikalauskas
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Publication number: 20230286507Abstract: Systems, methods, and apparatus are provided in a vehicle to reduce the likelihood of a trailer jackknife condition. The method includes: receiving trailer profile information; receiving a dynamic vehicle steering angle (?) and dynamic hitch articulation angle (?) while the vehicle is moving in a reverse direction; continuously calculating a maximum safe vehicle speed (vmax) at which to proceed in reverse without jackknifing based on the trailer profile information, the ?, the ?, a predetermined safe time to jackknife (TTJ_ne), and a maximum hitch articulation angle (?JK); comparing a current vehicle longitudinal speed (v) to the vmax; automatically generating a speed correction signal to cause the vehicle to slow down below the vmax when the v exceeds the vmax; and sending the speed correction signal to a vehicle motion control system to instruct the vehicle motion control system to reduce the v below the vmax.Type: ApplicationFiled: March 8, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Avesta Goodarzi, Utkarsh Saini
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Publication number: 20230286215Abstract: Low waste methods for three-dimensional printing techniques are provided. A method includes performing a preceding additive infusion process including: solubilizing an additive into a medium in a supercritical fluid state; contacting a preceding material with the medium to infuse a portion of the additive into the preceding material to form a preceding additive-infused material; and separating remaining additive from the medium. Further, the method includes performing at least one succeeding additive infusion process including: solubilizing the remaining additive and, optionally, additional additive, into the medium in a supercritical fluid state; and contacting a succeeding material with the medium to infuse at least a portion of the remaining and additional additive into the succeeding material to form a succeeding additive-infused material, wherein the medium from the preceding additive infusion process is reused in the at least one succeeding additive infusion process.Type: ApplicationFiled: March 9, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James Joseph Deininger, Andrew Thomas Cunningham, Benjamin John LeBlanc, Dominick Michael Lentine
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Publication number: 20230287153Abstract: Methods for forming sulfur polyacrylonitrile are provide. In certain variations, the method includes contacting sulfur and polyacrylonitrile to form an admixture, sealing a container holding the admixture, heating the admixture to a first temperature venting the container holding the admixture to release gases generated during the heating of the admixture to the first temperature, re-sealing the container holding the admixture, and heating the admixture to a second temperature. In other variations, the method includes contacting sulfur and polyacrylonitrile to form an admixture, heating the admixture to a first temperature, sealing a container holding the admixture, and heating the admixture to a second temperature. The second temperature is greater than the first temperature.Type: ApplicationFiled: March 9, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Robert D. SCHMIDT, Shuru CHEN, Fang DAI, Mei CAI
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Publication number: 20230286213Abstract: Methods for manufacturing three-dimensional objects using an additive manufacturing technique, methods for forming dye-infused feed material for an additive manufacturing technique, and vehicles including additive manufactured components are provided. An exemplary method for manufacturing a three-dimensional object using an additive manufacturing technique includes solubilizing a dye into a medium in the form of a supercritical fluid and contacting a feed material with the medium to infuse the dye into the feed material to form dye-infused feed material. The method further includes locally melting the dye-infused feed material in selected regions of a layer corresponding to a cross-section of a three-dimensional object being formed and solidifying the dye-infused feed material into a solid layer of dye-infused material. Further, the method includes repeating the local melting and solidifying steps to form the three-dimensional object made up of a plurality of solid layers of dye-infused material.Type: ApplicationFiled: March 9, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: James Joseph Deininger, Andrew Thomas Cunningham
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Publication number: 20230289166Abstract: A system includes a source vehicle and a destination vehicle. The destination vehicle is configured to determine that the source vehicle and the destination vehicle are suitably close to exchange data through a wireless communications channel, compare current version numbers in the destination vehicle with approved version numbers in the source vehicle, approve an update for one or more current software components in the destination vehicle in response to one or more criteria, receive one or more approved software components at the destination vehicle from the source vehicle via the wireless communications channel in response to the current version numbers of the current software components approved for the update being different from corresponding ones of approved version numbers of the approved software components, and update the one or more current software components in the destination vehicle with the one or more approved software components received from the source vehicle.Type: ApplicationFiled: February 1, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Anthony J. Sumcad, Russell A. Patenaude, Christopher L. Oesterling
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Publication number: 20230286388Abstract: A battery electric system for a motor vehicle or another electrified system includes a battery pack connected to a direct current voltage bus, and having positive and negative battery terminals, a main pyrotechnic fuse (“pyro fuse”), a high-voltage (HV) component connected to the bus via an HV channel, a current sensing element connected to the HV component on the HV channel, and a control system configured to selectively disconnect the battery pack from the bus by transmitting a voltage signal to the main pyro fuse when a measured current value from the current sensor is indicative of a short-circuit fault. A channel switch may be connected to or integral with the current sensing element, and configured to disconnect the HV component from the bus by opening in response to the measured current value.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Rashmi Prasad, Robert J. Heydel, Andrew K. Chandler, Shubham V. Shedge, Chandra S. Namuduri, Eleni C. Pitses
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Publication number: 20230286214Abstract: Methods for forming a function-infused feed material for a three-dimensional printing technique, methods for manufacturing an additive-infused three-dimensional printed object, and vehicles including additive manufactured components are provided. An exemplary method for forming a function-infused feed material for a three-dimensional printing technique includes solubilizing a functional additive into a medium. Further, the method includes contacting a three-dimensional printing feed material with the medium to infuse the functional additive into the three-dimensional printing feed material to form the function-infused feed material.Type: ApplicationFiled: March 9, 2022Publication date: September 14, 2023Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, eCO2Dye, LLCInventors: James Joseph Deininger, Andrew Thomas Cunningham, Madhu Anand, Rolf Schlake
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Publication number: 20230291288Abstract: A rotor for an electric machine includes strengthened structural elements effected through surface alloying and heating via an induction heating fixture. A rotor includes laminations formed to have internal cavities and structural members adjacent the cavities. A number of the laminations are stacked to form a lamination stack. An alloying material is applied to the lamination stack at the structural members. The lamination stack is placed in a fixture so that an inductor extends along the structural members and cooling elements extend through the cavities. A current is applied to the inductor to heat the structural members, alloying the alloying material into the structural members.Type: ApplicationFiled: January 21, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alireza Fatemi, Thomas W. Nehl, Huaxin Li, Anil K. Sachdev
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Publication number: 20230290188Abstract: A method for use aboard a motor vehicle having a vehicle interior and a vehicle telematics unit (VTU) includes detecting, using an electronic control unit (ECU), an active voice call between the VTU and a remote call center, and processing sensor data via the ECU. The sensor data is indicative of an operator of the vehicle having exited the interior. In response to enabling conditions, the voice call is transferred to a personal mobile device, e.g., a smartphone, external to the interior. The enabling conditions may include receipt by the ECU of a call transfer approval signal. A motor vehicle includes a body and control system attached thereto. The control system includes the VTU, a sensor suite, and the ECU. A computer-readable storage medium includes instructions, the execution of which by a processor of the ECU causes the method to be performed.Type: ApplicationFiled: March 10, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Matthew Neely, Matthew E. Gilbert-Eyres, Eric T. Hosey, Russell A. Patenaude
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Publication number: 20230291077Abstract: Presented are electrochemical devices with in-stack reference electrodes, methods for making/using such devices, and battery cells with stacked electrodes segregated by electrode separator assemblies including thermal barriers and built-in reference electrodes. An electrochemical device, such as a lithium-class secondary battery cell, includes an insulated and sealed housing with an ion-conducting electrolyte located inside the housing. A stack of working electrodes is also located inside the device housing, in electrochemical contact with the electrolyte. At least one electrode separator assembly is located inside the device housing, interposed between a neighboring pair of (anode and cathode) working electrodes. The electrode separator assembly includes a separator layer fabricated with an electrically insulating material that is sufficiently porous to transmit therethrough the ions of the electrolyte.Type: ApplicationFiled: March 8, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jing Gao, Brian J. Koch, Xingcheng Xiao, Mark W. Verbrugge
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Publication number: 20230290953Abstract: An active material component of a composition for forming an electrode of a battery in a dry process is provided. The active material component includes a dry powder including a plurality of grains of an active material. The active material component further includes an electrically conductive filler material attached to each of the plurality of grains.Type: ApplicationFiled: May 5, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Dewen Kong, Meiyuan Wu, Si Chen, Haijing Liu
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Publication number: 20230288216Abstract: A system for optimizing charging for a vehicle having a rechargeable energy storage unit and travelling on a route includes a controller. The controller has a processor and tangible, non-transitory memory on which instructions are recorded. Execution of the instructions by the processor causes the controller to obtain details of the route, including surveying local charging infrastructure to determine availability of one or more charging stations within a predefined radius of the route. The controller is adapted to obtain respective station parameters pertaining to the one or more charging stations. Based on user input, at least one session goal is selected from a predefined set of goals. The controller is adapted to generate a recommended charging profile respectively for one or more stops along the route, based in part on the session goal and the respective station parameters.Type: ApplicationFiled: March 11, 2022Publication date: September 14, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Brian Trimboli, Matthew A. Thomas
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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: 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: 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: 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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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: 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: 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: 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: 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: 20230275288Abstract: A battery electric device includes a battery cell, e.g., a pouch, prismatic, or cylindrical cell, connectable to an electric load, and a direct-to-air thermoelectric assembly (TEA) or another heat pump connected to a surface of the cell. A pressure control device maintains constant pressure on the cell surface when the cell is connected to the load. Connection to the load causes the TEA/heat pump to pump heat from the cell. A sensor, e.g., thermocouple(s) and/or heat flux sensor(s), generate an output voltage signal indicative of the quantity of heat. A battery system includes the device and a processor in communication with the cell, the load, and the power supply. The processor generates an electronic control signal in response to the quantity of heat.Type: ApplicationFiled: January 24, 2022Publication date: August 31, 2023Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Song-Yul Choe, Yang Hu, Taylor R. Garrick
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Publication number: 20230276365Abstract: A system for ambient temperature and battery voltage compensation for operation of a telematics module through an ignition-off low-power mode is provided. The system includes the telematics module configured for providing data communication and for operating in the ignition-off low-power mode through a telematics remaining reduced power operating period. The system further includes a battery system providing electrical power to the telematics module, a battery voltage sensor measuring a battery voltage of the battery system, and an ambient temperature sensor measuring an ambient temperature. The system further includes a computerized ignition-off low-power controller, including programming to periodically monitor the battery voltage, periodically monitor the ambient temperature, and determine a relative energy consumption ratio based upon comparing the measured values to nominal values.Type: ApplicationFiled: February 25, 2022Publication date: August 31, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Scott T. Droste, Alex J. Veloso, Reza Amini
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Publication number: 20230268589Abstract: The present disclosure provides a thermally stable battery pouch that includes one or more films assembled together to define a cavity, where a stack including a plurality of electrochemical cells and an electrolyte are disposed in the cavity. The cavity is at least about 50% larger than the stack. In certain variations, the thermally stable battery pouch further includes an elastic material film that coats at least a portion of an exterior surface of the one or more films. A method for forming the thermally stable battery pouch is also provided. The method includes adding the electrolyte to a precursor battery pouch via an opening, where the precursor battery pouch defines the cavity, and sealing the opening of the precursor battery pouch having the electrolyte and the stack disposed therein to form the thermally stable battery pouch.Type: ApplicationFiled: February 23, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Meng JIANG
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Publication number: 20230268478Abstract: A method of fabricating an electrode is provided. The method includes adding one or more dry powders to an extruder barrel of an extruder at a first location, adding one or more solvents to the extruder barrel at a second location that is downstream of the first location to form a material mixture, applying a mixing force to the material mixture to form a paste, and extruding the paste as a continuous film onto one or more surfaces of a current collector to form the electrode. The one or more dry powders include an electroactive material. The paste is a homogeneous semi-solid having a solids content greater than or equal to about 60% to less than or equal to about 90%. The continuous film has a thickness greater than or equal to about 50 ?m to less than or equal to about 500 ?m.Type: ApplicationFiled: February 18, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: William R. Rodgers, Cameron Christopher ROSE, Xiaosong HUANG
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Publication number: 20230267655Abstract: Methods and systems are provided for generating a virtual view of a scene associated with a vehicle. In one embodiment, a method includes: obtaining image data including a plurality of images captured by a plurality of cameras of the vehicle; obtaining steering angle data captured by a sensor of the vehicle; detecting, by a processor, a shadow in at least one image of the plurality of images; determining, by the processor, auto-white balance data for each image of the plurality of images; selectively combining, by the processor, the auto-white balance data of the images based on the detected shadow, and the steering angle data; and generating, by the processor, output image data based on the combined auto-white balance data and the image data.Type: ApplicationFiled: February 18, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Sai Vishnu Aluru, Yun Qian Miao, Sravan Daruri, Mohamed A. Naiel
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Publication number: 20230265808Abstract: In accordance with exemplary embodiments, methods and systems are provided for controlling fuel injection by a fuel injector of a direct injection engine. In one embodiment, a method includes: storing, in a first data storage device, a first table of values; storing, in a second data storage device, a second table of values; and adjusting, via instructions provided by a processor of the vehicle, a minimum mass value used to control the fuel injection based on an injector learned value, the first table, and the second table, wherein the injector learned value is set based on an amount of injector learning completed.Type: ApplicationFiled: February 18, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: J.Michael Gwidt, Daniel P Himes
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Publication number: 20230268547Abstract: The present disclosure provides an electrochemical cell that cycles lithium ions, where the electrochemical cell includes an electrode, a solid-state electrolyte layer, and a solid-state interlayer disposed between the electrode and the solid-state electrolyte layer. The solid-state interlayer includes a plurality of solid-state electrolyte particles. In certain instances, the solid-state interlayer includes a plurality of through-holes dispersed therewithin. The through-holes have an average diameter between about 0.05 to about 100 micrometers. The solid-state interlay covers between about 50% and about 100% of a total surface area of the electrode. In each variation, solid-state interlayer has a thickness greater than or equal to about 0.1 to less than or equal to about 8 micrometers, and the electrochemical cell may include a polymeric gel electrolyte that at least partially fills voids between solid-state electroactive particle and solid-state electrolyte particles.Type: ApplicationFiled: May 31, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Qili SU, Zhe LI, Xiaochao QUE, Haijing LIU
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Publication number: 20230268551Abstract: A gel polymer electrolyte for an electrochemical cell that cycles lithium ions comprises a polymer matrix infiltrated with a liquid electrolyte solution. The polymer matrix comprises poly(vinylidene fluoride-co-hexafluoropropylene). The liquid electrolyte solution comprises a nonaqueous organic solvent, a first lithium salt in the nonaqueous organic solvent, and a second lithium salt in the nonaqueous organic solvent. The first lithium salt comprises lithium difluoro(oxalato)borate and the second lithium salt comprises lithium bis(trifluoromethanesulfonyl)imide.Type: ApplicationFiled: May 6, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Zhe LI, Qili SU, Haijing LIU
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Publication number: 20230268570Abstract: A cell temperature measurement system for a battery includes a heat spreader and a temperature sensor. The heat spreader is configured to thermally conduct energy through a substrate from a cell contact to a sensor contact. The temperature sensor is configured to generate a measurement reflective of a cell or another component temperature of the battery. The temperature sensor may generate the temperature measurement according to readings taken with a probe positioned proximate the sensor contact.Type: ApplicationFiled: February 22, 2022Publication date: August 24, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Seth P. Mansfield, John M. Barnowsky, Ethan T. Quy, Matthew Pernot
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Publication number: 20230260291Abstract: Methods and systems for a vehicle are provided. In one embodiment, the method includes: receiving image data defining a plurality of images associated with an environment of the vehicle; determining, by a processor, feature points within at least one image of the plurality of images; selecting, by the processor, a subset of the feature points as ground points; determining, by the processor, a ground plane based on the subset of feature points; determining, by the processor, a ground normal vector from the ground plane; determining, by the processor, the ground normal vector based on a sliding widow method; determining, by the processor, a camera to ground alignment value based on the ground normal vector; and generating, by the processor, second image data based on the camera to ground alignment value.Type: ApplicationFiled: February 16, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: BINBIN LI, Xinyu Du, Yao Hu, Hao Yu, Wende Zhang
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Publication number: 20230260157Abstract: Systems and methods for a vehicle are provided. In one embodiment, a method includes: receiving image data defining a plurality of images associated with an environment of the vehicle; determining, by a processor, feature points within at least one image of the plurality of images; selecting, by the processor, a subset of the feature points as ground points based on a fixed two dimensional image road mask and a three dimensional region; determining, by the processor, a ground plane based on the subset of feature points; determining, by the processor, a ground normal vector from the ground plane; determining, by the processor, a camera to ground alignment value based on the ground normal vector; and generating, by the processor, second image data based on the camera to ground alignment value.Type: ApplicationFiled: February 16, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: BINBIN LI, Xinyu Du, Yao Hu, Hao Yu, Wende Zhang
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Publication number: 20230261173Abstract: An electrode including an electrochemical layer defining a surface having a plurality of dimples formed thereon is provided. The dimples have an average lateral size greater than or equal to about 100 nm to less than or equal to about 100 ?m, and an average depth greater than or equal to about 100 nm to less than or equal to about 50 ?m. In certain variations, the dimples are formed in situ by applying a current to the electrochemical layer. In other variations, the dimples are formed by moving a roller having a plurality of shapes defined thereon along one or more surfaces of the electrochemical layer. In still other variations, the dimples are formed by contacting one or more surfaces of the electrochemical layer with a chemical etchant.Type: ApplicationFiled: February 16, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Caleb REESE, Leng MAO, Andrew Clay BOBEL, Jeffrey David Cain
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Publication number: 20230258262Abstract: A transmission system associated with a vehicle includes a shaft to rotate about an axis of rotation. The shaft is coupled to a gear set. The transmission system includes a sensor target to be coupled to the gear set and to rotate with the gear set. The sensor target includes at least one target. The transmission system includes a sensor spaced apart from the sensor target by a gap. The sensor is configured to observe the at least one target of the sensor target to determine a rotation speed of the shaft.Type: ApplicationFiled: February 14, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Angela M. Hutcheon, Joel H. Gunderson, Roman Shestakov
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Publication number: 20230261194Abstract: A thick cathode is provided. The thick cathode includes a current collector and a coating disposed on the current collector and formed from an electrode composition. The electrode composition includes an active material, a conductive carbon filler, and a binder including carboxylic acid groups on a polymer backbone. The thick cathode has a surface and an energy density of at least 4 milliamp hours per square centimeter of the surface.Type: ApplicationFiled: February 17, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Nicole D. Ellison, Xiaosong Huang
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Publication number: 20230256903Abstract: A system for detecting one or more characteristics of an object within an automotive vehicle includes one or more sensors mounted within an interior of the vehicle or on an exterior of the vehicle, with each sensor being configured to detect a location, an orientation, a size and/or an object type of the object, and a controller operably connected with the one or more sensors and configured to assess whether the object is disposed in a predetermined alertworthy disposition. A method for detecting characteristics of the object within the vehicle includes determining the location, orientation, size and/or object type of the object using the one or more sensors, and assessing whether the object is disposed in a predetermined alertworthy disposition.Type: ApplicationFiled: February 16, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Matthew E. Gilbert-Eyres, Russell A. Patenaude, Eric T. Hosey, Matthew Neely
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Publication number: 20230261330Abstract: A multi-level busbar for interconnecting flexible cell tabs within a battery module of a battery electric system, e.g., of a motor vehicle having a traction motor and road wheels, includes first and second busbar surfaces and an elongated step transition. The first busbar surface is arranged at a first level of the busbar and is configured to be welded to a first tab group of the cell tabs. The second busbar surface is arranged at a second level of the busbar, and configured to be welded to a second tab group of the cell tabs. The step transition has a height dimension configured to allow the first and second tab groups to overlap when folded against and welded to the busbar.Type: ApplicationFiled: February 11, 2022Publication date: August 17, 2023Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Robert H. Dietze, Tyler J. Murphy, Daniel J. Casoli