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
  • Patent number: 10665398
    Abstract: A switch assembly includes a case and a direct current (DC) electronic solid-state switch coupled to the case. The case covers the DC electronic solid-state switch, and the DC electronic solid-state switch has an on-state and off-state. The DC electronic solid-state switch blocks between 650 volts and 1200 volts in a single direction in an off-state. The DC electronic solid-state switch continuously carries at least 400 amperes direct current with a voltage drop of less than one volt. The DC electronic solid-state switch also includes a plurality of semiconductor dies each forming a MOSFET. The DC electronic solid-state switch also includes a plurality of signal conductors.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: May 26, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Chandra S. Namuduri, Rashmi Prasad
  • Patent number: 10666099
    Abstract: Presented are slotted permanent magnets (PM) for electric machines, motor generator units using slotted PMs, methods for making/using slotted PMs, and motor vehicles equipped with an electric traction motor using slotted PMs. An electric machine includes an annular stator with a hollow core and one or more internal stator slots. One or more electrically conductive windings is/are disposed in the stator slot(s). A cylindrical rotor is rotatably disposed inside the hollow core of the stator. One or more permanent magnets is/are mounted to the rotor. Each permanent magnet includes a rigid, single-piece PM body with opposing first and second faces. A first set of elongated grooves is recessed into the first face. An optional second set of elongated grooves is recessed into the second face. Each of the grooves has a depth that is substantially parallel to a direction of a magnetic field generated by the permanent magnet.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: May 26, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Alireza Fatemi, Thomas W. Nehl, David J. Brooks
  • Patent number: 10665852
    Abstract: A method for reducing residual water content in a battery material includes placing the battery material having residual water adsorbed therein in a channel substantially sealed from an ambient environment. A gaseous mixture is caused to flow through the battery material in the channel. The gaseous mixture includes an organic solvent vapor present in an amount effective to hydrogen bond with at least some water molecules from the battery material. The gaseous mixture is caused to flow through the battery material for a predetermined amount of time, at a predetermined temperature, and at a predetermined pressure. The organic solvent vapor having at least some water molecules bonded thereto is removed from the battery material. The removing takes place for a predetermined amount of time, at a predetermined temperature, and at a predetermined pressure, thereby forming the battery material having reduced residual water content.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhiqiang Yu, Dewen Kong, Haijing Liu
  • Patent number: 10665913
    Abstract: A high voltage battery module includes a plurality of battery cells, a plurality of cooling fins dispersed between the battery cells, and a frame for holding the plurality of battery cells and the plurality of fins. An intumescent layer is proximate to at least one battery module component selected from the battery cells, the plurality of cooling fins, and the frame. The intumescent layer includes sodium silicate having formula Na2SiO3, pentaerythitol, a resin that is cross-linked by melamine, boron nitride particles, and triammonium phosphate.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Sami A. Syed, Herman K. Phlegm, Mahmoud H. Abd Elhamid, Edgar P. Calderon
  • Patent number: 10663309
    Abstract: A method for planning and adapting a recommended travel route to a route destination for a vehicle having various subsystems includes identifying the route destination and receiving vehicle health management (VHM)/state of health (SOH) information for each subsystem. The vehicle with a controller programmed to execute the method is also disclosed. The method includes calculating route characteristics of candidate travel routes to the destination using the VHM information and determining, from among the candidate travel routes, travel routes for which the characteristics meet a respective threshold requirement. Thereafter, the controller executes a control action by displaying a candidate route meeting the threshold requirements. An occupant is prompted to revise the mission requirements when no candidate route exists. A default route to a designated parking location or repair depot may be displayed when none of the candidate routes meet the threshold requirements.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 26, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Wen-Chiao Lin, Xiaoyu Huang, Shengbing Jiang, Youssef A. Ghoneim, Chaitanya Sankavaram, Azeem Sarwar, Steven W. Holland
  • Patent number: 10661829
    Abstract: A method for optimizing vehicle steer-by-wire characteristics, includes collecting steer-by-wire steering system data for multiple predetermined data segments. Multiple driving quality objective indices are determined for each segment. A trend line is prepared based on the multiple predetermined data segments using a first algorithm, a second algorithm and a third algorithm, each assigned to one of the driving quality objective indices. Values obtained from the first algorithm, the second algorithm and the third algorithm are superimposed to create a net desired incremental change in damping, steering ratio and base assist. A steering calibration modification command is generated in real-time using the incremental change in damping, steering ratio and base assist.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Ibrahim A. Badiru
  • Patent number: 10663581
    Abstract: An ultra-short range radar (USRR) system of a vehicle includes an object detection module configured to, based on radar signals from USRR sensors of the vehicle: identify the presence of an object that is external to the vehicle; determine a location of the object; and determine at least one of a height, a length, and a width of the object. A remedial action module is configured to, based on the location of the object and the at least one dimension of the object, at least one of: selectively actuate an actuator of the vehicle; selectively generate an audible alert via at least one speaker of the vehicle; and selectively generate a visual alert via at least one light emitting device of the vehicle.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stephen W. Decker, Jeremy P. Gray, Igal Bilik, Shuqing Zeng
  • Patent number: 10662891
    Abstract: An engine block, an automotive structure, and a method of coating an inner surface of an engine cylinder bore of an engine cylinder are provided. The method includes providing an inner bore substrate defining an inner surface of the engine cylinder bore, the inner bore substrate being formed of a first material. The method further includes disposing a thermal spray coating onto the inner surface of the engine cylinder bore. The thermal spray coating is formed of a second material that is different than the first material. The method also includes melting at least a portion of the thermal spray coating with a laser after performing the step of disposing the thermal spray coating onto the inner surface of the engine cylinder bore. The automotive structure and the engine block have a substrate covered by a thermal spray coating and laser remelted sections anchoring the coating to the substrate.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Huaxin Li, Daniel J Wilson, Martin S Kramer, Dale A Gerard
  • Patent number: 10661840
    Abstract: An interlocking body and floor pan assembly for a below-floor energy stored vehicle includes a vehicle structural assembly having a front compartment section connected to a rear compartment section using first and second rocker members. The front compartment section includes a compartment front cross-beam and the rear compartment section includes a compartment rear cross-beam oriented parallel to the compartment front cross-beam. The vehicle structural assembly defines a bucket configuration having faces of the compartment front cross-beam and the compartment rear cross-beam angularly oriented from an upper outboard edge downwardly pitching to a lower inboard edge. A prefabricated sub-floor assembly seats on flange structure and is positioned with a clearance to the bucket configuration of the vehicle structural assembly. An outer perimeter of the sub-floor assembly is larger than an inner perimeter of the vehicle structural assembly where the sub-floor assembly contacts the vehicle structural assembly.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Robert N. Saje, Peter M. Parlow, Keith J. Saari, John R. Sulik, II
  • Patent number: 10665387
    Abstract: A method of fabricating a curvilinear magnet includes forming at least one slot in a material billet. The slotted material billet is inserted into a mold having a curvilinear pocket. The mold is closed around the slotted material billet such that the slotted material billet conforms to the curvilinear pocket and forms a curvilinear billet. The curvilinear billet is arranged in a structure. The curvilinear billet arranged in the structure is then magnetized.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: May 26, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael P. Balogh, Frederick E. Pinkerton, Anil Singh Bika, Ingrid A. Rousseau
  • Patent number: 10661804
    Abstract: A propulsion system, control system, and method use model predictive control systems to generate a plurality of sets of possible command values and determine a cost for each set of possible command values. The set of possible command values that has the lowest cost is determined and defined as a selected set of command values. In some circumstances, the MPC-determined command value may be replaced by another transmission ratio command based on override inputs. Minimum and maximum transmission ratios are determined based on the override inputs, and a constrained (or arbitrated) transmission ratio is determined therefrom. The constrained or arbitrated transmission ratio is used to determine whether to apply an MPC-determined transmission ratio or a transmission ratio based on the arbitrated transmission ratio to determine an ultimate commanded transmission ratio. Pressure(s) are commanded to a transmission pulley assembly, which is configured to implement the ultimate commanded transmission ratio.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Paul G. Otanez, Michael Livshiz, Christopher J. Weingartz, Cole Reinhold, Michael T. Sarzynski, Mateusz M. Nowak, Bharath Pattipati
  • Publication number: 20200158507
    Abstract: In accordance with certain embodiments, a vehicle is provided that includes a location system, an operation system, and a processor. The location system is configured to obtain location data pertaining to the vehicle. The operation system is configured to provide a feature for operation of the vehicle. The processor is coupled to the location system and the operation system, and is configured to: identify a point of interest in proximity to the vehicle based on the location data; determine a category to which the point of interest belongs; and provide instructions for the operation system to initiate a setting for the feature for operation of the vehicle based on the category for the point of interest that is in proximity to the vehicle and a history of the vehicle.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 21, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David T. De Carteret, Adam D. Stanton
  • Publication number: 20200162005
    Abstract: An electrical system includes a multi-level traction power inverter module (TPIM), a polyphase electric machine, and a controller. The TPIM has multiple switching sets collectively operable for inverting a DC voltage on a DC voltage bus into an AC voltage on an AC voltage bus. The electric machine has (m) multiple electrical phases. Each of the (m) multiple electrical phases is connected to and driven by a respective one of the switching sets of the TPIM. The controller determines when the electric machine enters a predetermined partial-load region of operation, and, responsive to entry into the predetermined partial-load region, selectively deactivates a predetermined number (n) of the (m) multiple electrical phases. This is done via switching state signals to corresponding ones of the switching sets, with n?m?2.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 21, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Alireza Fatemi, Derek F. Lahr
  • Publication number: 20200156586
    Abstract: A deployable headrest airbag includes an airbag chamber configured to be coupled to a headrest of a vehicle seat. The airbag chamber has a stowed position and a deployed position. In stowed position, the airbag chamber is disposed inside the headrest. In the deployed position, the deployable headrest airbag is disposed outside of the headrest to protect a head and a neck of a vehicle occupant.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 21, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Chin-Hsu Lin, Yi-Pen Cheng
  • Publication number: 20200158219
    Abstract: A torque converter assembly includes a pump and a turbine fluidly connected together. A vehicle includes the assembly operable between an output shaft of an engine and an input member of a transmission. The assembly includes a damper and a clutch operable between the pump and the turbine. The damper is operable upstream from the clutch such that oscillation from the pump is reduced by the damper before oscillation reaches the clutch. The clutch includes first and second plates and a friction plate disposed between the first and second plates. The assembly includes a casing that contains the pump, the turbine, the damper and the clutch. A first part of the casing and the first plate define a first chamber. A first part of the turbine and the second plate define a second chamber. The clutch between the first and second plates defines a third chamber.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 21, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Dongxu Li, Leonid Basin
  • Publication number: 20200156245
    Abstract: A jointed mechanism includes a passive pendulum system attached to and suspended from the multi-axis robot. The system includes one or more position sensors configured to measure a joint angle on the pendulum system, at least one arm, and an end-effector attached to a distal end of the pendulum system. A controller implements a method to selectively control motion of the robot in a plurality of control modes. The control modes include a Cooperative Mode and an Autonomous Mode. The controller is configured to detect contact with the end-effector when operating in the Autonomous Mode, and to automatically initiate a control action in response to the contact. The pendulum system may be a parallelogram arrangement.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Muhammad E. Abdallah, James W. Wells
  • Publication number: 20200161727
    Abstract: A thermal interface member configured to be disposed between a heat sink and a heat-releasing device includes a thermal interface member. The thermal interface member has a thermally conductive, cure-in-place, polymer foam pad configured to maintain uniform contact with each of the heat sink and the heat-releasing device. The thermal interface member is additionally configured to absorb the thermal energy released by the heat-releasing device and direct the released thermal energy to the heat sink. The polymer foam pad has a matrix structure including at least one of anisotropic and isotropic thermally conductive anisotropic filler material, and is characterized by foam material density below 0.5 g/cm3.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 21, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Herman K. Phlegm, Mahmoud Abd Elhamid, Timothy J. Fuller, Mark O. Vann
  • Publication number: 20200160125
    Abstract: A signal processing system includes a central processing unit (CPU) in communication with an accelerator, and an instruction scheduler in communication with the accelerator. A first memory device including a first instruction set is configured to operate the accelerator, a second instruction set is configured to operate the CPU, and a second memory device is configured to receive a datafile. The accelerator includes a plurality of processing engines (PEs) and an instruction scheduler, the instruction set includes a plurality of operators, and the instruction scheduler is configured to implement the operators in the accelerator employing the PEs. The CPU employs the operators implemented in the accelerator to analyze the datafile to extract a feature therefrom.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 21, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Shige Wang, Wei Tong, Shuqing Zeng, Roman L. Millett
  • Patent number: 10654415
    Abstract: A system according to the present disclosure includes an edge detection module, a hitch identification module, a guidance line module, and a display control module. The edge detection module detects edges of an object within an image of a cargo bed of a vehicle. The hitch identification module identifies at least one of a type of a trailer hitch attached to the cargo bed and a size of the trailer hitch based on the detected edges of the object. The guidance line module determines a starting point of a guidance line for connecting a trailer to the trailer hitch based on at least one of the type of the trailer hitch and the size of the trailer hitch. The display control module controls an electronic display to display the image of the cargo bed and to display the guidance line on the image of the cargo bed.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 19, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Allan K. Lewis, Mohammad Naserian, Michael J. Bliss
  • Patent number: 10655583
    Abstract: A method for operating an electromagnetic actuator includes an actuation event utilizing a current waveform for the actuator characterized by an initial peak pull-in current in a first direction of current flow when the actuator is commanded to an actuated position; and a reversed peak current in a second opposite direction of current flow applied after the actuator is commanded to a rest position. The reversed peak current has a magnitude that is greater than the magnitude of the initial peak pull-in current.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Avoki M. Omekanda, Chandra S. Namuduri, Suresh Gopalakrishnan, Thomas W. Nehl
  • Patent number: 10658963
    Abstract: A method for regulating operation of an induction motor having a rotor includes calculating a rotor flux angle error value, via a flux observer of a controller, using estimated d-axis and q-axis flux values of the rotor, estimating rotor position using a position observer of the controller, and calculating slip position of the rotor using d-axis and q-axis stator currents. The method also includes estimating a rotor flux angle as a function of slip position and estimated rotor position, calculating a corrected rotor flux angle by selectively adding the rotor flux angle error value to the estimated rotor flux angle, and controlling output torque of the motor using the corrected rotor flux angle. A logic switch may be used to selectively add the rotor flux angle.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Anno Yoo, Nathan Minor
  • Patent number: 10655550
    Abstract: An engine control system includes a prediction module that, during an exhaust stroke of a first cylinder of an engine, determines a predicted intake manifold pressure at an end of a next intake stroke of a second cylinder following the first cylinder in a firing order of the cylinders. An air per cylinder (APC) module determines a predicted mass of air that will be trapped within the second cylinder at the end of the next intake stroke of the second cylinder based on the predicted intake manifold pressure. A fueling module controls fueling of the second cylinder during the next intake stroke based on the predicted mass of air.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 19, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Layne K. Wiggins, Rafat F. Hattar, Gary Robert Cygan, Jr., Ning Jin, Gregory P. Matthews
  • Patent number: 10654511
    Abstract: An exemplary method for controlling a vehicle includes providing a vehicle steering system including a moveable steering column assembly and a moveable steering wheel assembly, a first actuator and a second actuator, the first and second actuators configured to move vehicle steering system from a first position to a second position, providing a plurality of sensors, the sensors configured to measure a force characteristic, providing a controller electronically connected to the sensors and the vehicle steering system, monitoring first sensor data received from the first sensor and second sensor data received from the second sensor, generating a reference model based on a desired output displacement and the first and second sensor data, calculating, a revised output displacement based on the reference model, and automatically generating a first control signal to control the first actuator and a second control signal to control the second actuator.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Yu Cao, Bo Yu, Raed N. Abuaita
  • Patent number: 10658663
    Abstract: Lithium-utilizing electrochemical cells, providing hybrid battery and capacitor activity, are formed of one or more lithium battery anodes, optionally also including a capacitor electrode, and one or more lithium battery cathodes, optionally with a capacitor electrode, provided that there is at least one capacitor electrode in the hybrid cell and that there are an equal number of electrodes of opposing charge. The respective electrodes are formed of porous layers of one of lithium anode material particles, lithium cathode material particles, or compatible capacitor material particles, formed on one or both sides of a compatible current collector foil. The amounts of active battery and capacitor particles are managed by the thickness of the porous coating layers, and one-side or two-side electrode coatings, to balance the capacities of the battery and capacitor particles to accept and release lithium ions during repeated charging and discharging of the hybrid cell.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: May 19, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xiusheng Zhang, Jingjing Wu
  • Patent number: 10654551
    Abstract: A method of planing a marine vessel propelled by an electric propulsion system operably connected to a rotatable propeller system including that a command input requesting an increase in throttle is received. The method also includes that it is determined whether the marine vessel is on plane and whether there is sufficient power and energy available in the electric propulsion system to reach planing speed when the marine vessel is not on plane. The method further includes that power output from the electric propulsion system is increased for a selected period of time such that the electric propulsion system is allowed to overshoot continuous power limits of one or more components of the electric propulsion system for the selected amount of time. The one or more components of the electric propulsion system including at least one of an electric motor, an energy storage device, and an electric controller.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: May 19, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jonathan D. Doremus, Trevor Fayer
  • Patent number: 10654531
    Abstract: An exemplary automotive vehicle includes a body having a wheelhouse, the wheelhouse including a wheelhouse edge defining a wheelhouse opening, and a wheel disposed in the wheelhouse opening, a suspension system including a suspension component adjacent to the wheelhouse, the suspension component configured to vertically deflect during vehicle operation, an aerodynamic system including an aerodynamic member disposed within the wheelhouse opening and coupled to the suspension component, the aerodynamic member having a first position with respect to the wheelhouse edge and the wheel and a second position with respect to the wheelhouse edge and the wheel, wherein the aerodynamic member moves from the first position to the second position with deflection of the suspension component such that a distance between the aerodynamic member and the wheel is greater when the aerodynamic member is in the second position than when the aerodynamic member is in the first position.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Steven A. Del Gaizo, William Fang, Joseph M. Polewarczyk, Jeffrey L. Konchan
  • Patent number: 10656248
    Abstract: A system, method and apparatus for detecting a plurality of targets in a radar device are disclosed. A transmitter transmits a source signal and a receiver receives echo signals from reflection of the source signal from the plurality of targets. A composite signal is generated that includes a plurality of target signals from the plurality of echo signals. A largest signal in the composite signal is identified and a value of a parameter of the largest signal is estimated. A representative signal is generated as a convolution of a point target having the estimated value of the parameter. The representative signal is subtracted from the composite signal to obtain a remaining signal. Another of the plurality of targets is determined using the remaining signal.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: May 19, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Igal Bilik, Alexander Pokrass, Moshe Laifenfeld
  • Patent number: 10658889
    Abstract: An electromagnetic machine includes a motor housing defining a cavity therein, and a stator disposed within the cavity. The stator has an external surface and a plurality of mounting ears each configured to receive a fastener and extending from the external surface towards the motor housing. The assembly includes a tunable insert ring disposed between the motor housing and the stator. The tunable insert ring and the stator define at least one cooling channel therebetween. The tunable insert ring encircles the external surface and includes a plurality of projections each extending towards and disposed in contact with the stator to thereby stiffen the electromagnetic machine and minimize vibration of the stator within the motor housing. A device including the electromagnetic machine is also described.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Xuan Q. Tran, Edward L. Kaiser, Song He
  • Patent number: 10654447
    Abstract: A system for authorizing temporary access and operation of a vehicle via a mobile computing device, the system includes a processor and a memory device. The system also includes a SRWC module configured to communicate with the mobile computing device; and a CNG module being in communication with the SRWC module, the CNG module includes a NAD, configured to communicate with one or more remote entities over a wireless carrier system; a GPS module, configured to generate vehicle position information and communicate that position data to the one or more remote entities; a CGM, configured to monitor and control incoming communications from the SRWC module, NAD, and GPS module. The CGM further configured to establish communications across a CAN; and a CMS, configured to encrypt the communications established by CGM as well as store the communications in the memory device.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 19, 2020
    Assignee: GENERAL MOTORS LLC
    Inventors: Christopher L. Oesterling, Robert Miles, Hrushit B. Raval, Paul H. Pebbles
  • Patent number: 10657617
    Abstract: A method and system including a central processing unit (CPU), an accelerator, a communication bus and a system memory device for dynamically processing an image file are described. The accelerator includes a local memory buffer, a data transfer scheduler, and a plurality of processing engines. The data transfer scheduler is arranged to manage data transfer between the system memory device and the local memory buffer, wherein the data transfer includes data associated with the image file. The local memory buffer is configured as a circular line buffer, and the data transfer scheduler includes a ping-pong buffer for transferring output data from the one of the processing engines to the system memory device. The local memory buffer is configured to execute cross-layer usage of data associated with the image file.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Shige Wang, Wei Tong, Shuqing Zeng, Roman L. Millett
  • Patent number: 10654370
    Abstract: An apparatus for flexible DC fast charging of an electrified vehicle includes a charge receptacle and a vehicle charging controller programmed to establish a wireless communication with a charging station. The apparatus further includes a reconfigurable energy storage system selectively and electrically connected to the charge receptacle. The reconfigurable energy storage system includes a first rechargeable energy storage device selectively and electrically connected to the charge receptacle, a second rechargeable energy storage device selectively connected to the charge receptacle, and a plurality of low-loss switching devices selectively connected to the first rechargeable energy storage device and the second rechargeable energy storage device.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 19, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Chandra S. Namuduri, Thomas W. Nehl, Lei Hao, Michael Harpster, Andrew K. Chandler
  • Publication number: 20200147598
    Abstract: A method of forming a film system includes depositing a monolayer formed from a fluorocarbon onto a substrate. After depositing, the method includes ablating the monolayer to define a plurality of cavities therein, wherein each of the plurality of cavities is spaced apart from an adjacent one of the plurality of cavities along the monolayer. After ablating, the method includes embedding a photocatalytic material into each of the plurality of cavities to form a film on the substrate and thereby form the film system. The film system includes a plurality of regions including the photocatalytic material and disposed within the monolayer such that each of the plurality of regions abuts and is surrounded by the fluorocarbon.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gayatri V. DADHEECH, Thomas A. SEDER, James A. CARPENTER
  • Publication number: 20200149490
    Abstract: A vehicle system includes an engine defining a plurality of cylinders and configured to combust a fuel. A method of increasing efficiency of an engine includes controlling an amount of fuel being injected into the plurality of cylinders of the engine via a respective fuel injector. An exhaust gas recirculation (EGR) system is in selective fluid communication with a second subset of the plurality of cylinders and the air intake system to route the second exhaust product from the second subset of the plurality of cylinders to an air intake system. A valve is coupled to the EGR system and the exhaust system. A first sensor is disposed between the valve and the air intake system, and measures an amount of reformate in the second exhaust product when the valve is in a second position.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Martino A. Casetti, Michael J. Lucido, Ping Ge, Jennifer C. Wheeler
  • Publication number: 20200148210
    Abstract: A host vehicle includes an internal combustion engine, a turbocharger in fluid communication with the internal combustion engine, a communication system configured to transmit and receive a traffic-related message, and a controller in communication with the turbocharger and the communication system. The controller is programmed to: receive the traffic-related message via the communication system; and command the internal combustion engine to increase a power output to spool up the turbocharger in response to receiving the traffic-related message. The controller is programmed to determine a number of relevant vehicles. The number of relevant vehicles is a number of vehicles that are in front of the host vehicle and behind a traffic light and affect a movement of the host vehicle toward the traffic light. The traffic-related message is a one of a vehicle message from another vehicle and/or a traffic-light message from the traffic light.
    Type: Application
    Filed: November 14, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Mohammad Naserian, Allan K. Lewis, Donald K. Grimm, Yiran Hu
  • Publication number: 20200149896
    Abstract: A method for autonomous vehicle map construction includes automatically capturing location data, movement data, and perception data from a vehicle that has traveled down a road, wherein the perception data includes data that identifies the location of lane edges and lane markers for the road, the location of traffic signs associated with the road, and the location of traffic signaling devices for the road. The method further includes pre-processing to associate the captured perception data with the captured location data, captured movement data, and navigation map data; determining, from the pre-processed data, lane boundary data, traffic device and sign location data, and lane level intersection data that connects the intersecting and adjoining lanes identified through the lane boundary data; and storing the lane boundary data, traffic device and sign location data, and lane level intersection data in a map file configured for use by an autonomous vehicle.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 14, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lawrence A. Bush, Michael A. Losh, Brent N. Bacchus, Aravindhan Mani
  • Publication number: 20200148121
    Abstract: A running board configured for absorbing energy includes an attachment portion extending along a longitudinal axis and a step-assist portion extending from the attachment portion along a latitudinal axis that is perpendicular to the longitudinal axis. The attachment portion defines a plurality of voids therein each disposed along a respective one of a plurality of horizontal axes that are perpendicular to the longitudinal axis. The running board further includes a plurality of tubes disposed within a respective one of the plurality of voids. A device including the running board and a method of forming a running board are also set forth.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Venkateshwar R. Aitharaju, Hamid G. Kia
  • Publication number: 20200152938
    Abstract: A battery of a vehicle includes a housing including: a lower portion that includes a plurality of separators extending vertically upward from a floor of the lower portion; and an upper portion that covers an opening of the lower portion and that is removable from the lower portion. The battery also includes: first and second terminals on the housing; third and fourth terminals on the housing; a plurality of individually housed batteries separated by the plurality of separators; a plurality of switches configured to selectively connect ones of the plurality of batteries to ones of the first, second, third, and fourth terminals; and a battery management module configured to control the plurality of switches.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Lyall K. WINGER, Dave G. Rich, Saad Hasan
  • Publication number: 20200148896
    Abstract: An aqueous or water-borne precursor for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor includes a fluorine-containing polyol precursor having a functionality >about 2 that forms a branched fluorine-containing polymer component defining a continuous phase in the anti-fouling heterophasic thermoset polymeric coating. The precursor also includes a fluorine-free precursor that forms a fluorine-free component present as a plurality of domains each having an average size of ?about 100 nm to ?about 5,000 nm defining a discrete phase within the continuous phase in the anti-fouling heterophasic thermoset polymeric coating. A crosslinking agent and water are also present. An emulsifier may also be included. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: April R. RODRIGUEZ, Adam F. GROSS, Ashley M. DUSTIN, Anthony L. SMITH, Andrew P. NOWAK, Kevin J. DRUMMEY
  • Publication number: 20200153051
    Abstract: A battery control system includes a battery comprising: first and second terminals; third and fourth terminals; a plurality of individually housed batteries; and a plurality of switches configured to connect ones of the batteries to and from ones of the first, second, third, and fourth terminals. A mode module is configured to set a mode of operation based on at least one of a plurality of present operating parameters. A switch control module is configured to control the plurality of switches based on the mode of operation.
    Type: Application
    Filed: February 14, 2019
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Lyall K. Winger, Dave G. Rich, Saad Hasan
  • Publication number: 20200153050
    Abstract: A battery control system includes a battery comprising: first and second terminals; third and fourth terminals; a plurality of individually housed batteries; and a plurality of switches configured to connect ones of the batteries to and from ones of the first, second, third, and fourth terminals. A mode module is configured to set a mode of operation based on at least one of a plurality of present operating parameters. A switch control module is configured to control the plurality of switches based on the mode of operation.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Lyall K. WINGER, Dave G. RICH, Saad HASAN
  • Publication number: 20200150182
    Abstract: A battery control system includes T contactor paths connected in parallel between a battery and a load, where T is an integer greater than one. Each of the T contactor paths includes a first contactor and a second contactor connected in series with the first contactor. Each of the T contactor paths includes at least one of a first voltage sensor configured to sense a first voltage between the first contactor and the second contactor; and a current sensor configured to sense current flowing through the first contactor and the second contactor. A second voltage sensor is configured to sense a second voltage at one end of the T contactor paths. A third voltage sensor is configured to sense a third voltage at an opposite end of the T contactor paths.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Dave G. RICH, Jonathan O. CONELL, Robert A. DE STEFANO, Saad HASAN, Benjamin G. WROBLEWSKI, Lyall K. WINGER
  • Publication number: 20200149993
    Abstract: A machine bearing disposed on a rotatable member, such as may be present on a vehicle, is described. A method for monitoring a state of health of the machine bearing includes monitoring, via a microphone, an acoustic signal, and coincidently determining a rotational speed of the rotatable member associated with the machine bearing. The sound spectrum is correlated to the rotational speed of the rotating member, and a time-frequency analysis is executed to determine a sound spectrum. The sound spectrum is transformed to a residual spectrum. A first feature associated with a first frequency band and a second feature associated with a second frequency band are extracted from the residual spectrum. The state of health associated with the machine bearing is detected based upon the first and second features, and is communicated to a second controller.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 14, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Jianshe Feng, Xinyu Du, Mutasim Salman, Kevin A. Cansiani
  • Publication number: 20200153299
    Abstract: A permanent magnet electric machine (PM machine) includes a rotor with rotatable magnets and a stator defining an air gap with the rotor. An actuator rotates the rotatable magnets at predetermined operating points through an angular distance sufficient for changing magnetic pole orientations of the rotatable magnets, and thus modifies magnetic flux linkage with stator windings across the air gap. Fixed magnets may be arranged around a circumference of the rotor. The actuator may be actively or passively driven. Flux-shunting elements are optionally disposed in the rotor to further modify the flux linkage. A gear set connected to torque transfer elements may be driven by the actuator to rotate the rotatable magnets. A vehicle includes drive wheels, a transmission, and the PM machine. A method controls magnetic flux linkage in the PM machine noted above.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Shawn H. Swales, Khwaja M. Rahman, Craig S. Ross, Goro Tamai
  • Patent number: 10651740
    Abstract: An electric drive system for a vehicle may include positive and negative bus rails carrying a direct current (DC) bus voltage, an energy storage system (ESS), a power inverter having a plurality of semiconductor switches operable for inverting the DC bus voltage into an alternating current (AC) bus voltage, and an electric machine. A DC-DC converter may be connected to the bus rails between the capacitor and the power inverter and may include a converter semiconductor switch disposed in the positive bus rail, an inductor coil connected to the positive bus rail and receiving current flowing through the converter semiconductor switch, at least one diode, and a bypass switch connected to the positive bus rail and configured to allow current to bypass the converter. The DC-DC converter may be configured to output a DC bus voltage to the power inverter with a same polarity as the battery polarity.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: May 12, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mingyuan Zhang, Chengwu Duan, Lei Hao, Jian Yao
  • Patent number: 10647222
    Abstract: A system to limit adjustment capabilities of a vehicle seat, the system including: a controller; a camera located in a vehicle configured to record images of a visual content, where the visual content is at least a portion of the vehicle seat; the vehicle seat being capable of being remotely controlled to be adjusted between an upright arrangement and a folded arrangement; a sensor configured to produce an output when a seatbelt tongue is inserted into a corresponding seatbelt buckle; where executable instructions enable the controller to: operate the camera to record images of the visual content; determine whether an object exists in the visual content; determine whether the sensor has produced an output; and when at least one object exists in the visual content or the sensor has produced an output, limit the vehicle seat adjustment capabilities such that the vehicle seat is restricted to the upright arrangement.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 12, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Orhan Demirovic, Mingyang Yang, Bongkyu Park, Jaywan Kim
  • Patent number: D884939
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: May 19, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Timothy P. Kozub
  • Patent number: D885261
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Carl J. Zipfel
  • Patent number: D885265
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Carl J. Zipfel
  • Patent number: D885270
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Carl J. Zipfel
  • Patent number: D885618
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: May 26, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John P. Mack, Scott P. Wassell