Patents Assigned to GM Global Technologies Operations LLC
  • Publication number: 20200269689
    Abstract: A method includes receiving a set speed, a maximum allowed speed, and a minimum allowed speed, wherein the maximum allowed speed and the minimum allowed speed define an allowed speed range; commanding a propulsion system to produce a commanded axle torque to maintain the set speed; monitoring a current vehicle speed of the vehicle; determining whether the current vehicle speed is between a first speed value and a second speed value, wherein the first speed value is the minimum allowed speed plus a first predetermined value, and the second speed value is the maximum allowed speed minus a second predetermined value; and in response to determining that the current vehicle speed is not between the first speed value and the second speed value, commanding the propulsion system to adjust the commanded axle torque in order to maintain the current vehicle speed within the allowed speed range.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 27, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Matthew S. Zebiak, Amanpal S. Grewal
  • Publication number: 20200269674
    Abstract: A powertrain and an electro-mechanical drive unit includes a first electric machine and a second electric machine each operable as a motor to produce motor torque or as a generator to produce energy. The first and second electric machines are in electrical communication with each other. The electro-mechanical drive unit further includes a hydrodynamic coupling apparatus configured to transfer engine torque. The hydrodynamic coupling apparatus includes an impeller and a turbine fluidly connected to the impeller. The hydrodynamic coupling apparatus is coupled to one of the first and second electric machines to combine the engine torque transferred via the hydrodynamic coupling apparatus with the motor torque produced by the first and/or second electric machines when the first and/or second electric machines operate as the motor.
    Type: Application
    Filed: February 22, 2019
    Publication date: August 27, 2020
    Applicant: GM Global Technology Operations LLC
    Inventor: Shawn H. Swales
  • Publication number: 20200274204
    Abstract: An interconnect board (ICB) assembly is used with a battery module and a battery controller. The ICB assembly includes a printed circuit board assembly (PCBA) integrally formed from a printed circuit board (PCB) and a flex circuit. The PCB has a component surface populated with electronic components which measure and report parameters of the battery module to the battery controller. The flex circuit is constructed of conductive foil, and defines tabular flying leads that project from a periphery of the flex circuit. A window may be present in the flex circuit. A carrier frame has a support surface flanked by busbars. The PCBA is seated on the support surface, with the flying leads conductively joined to a corresponding busbar. A battery system includes the battery controller and the ICB assembly.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 27, 2020
    Applicant: GM Global Technology Operations LLC
    Inventor: Evan J. Dawley
  • Patent number: 10756385
    Abstract: High power lithium-ion batteries are disclosed. Such batteries may be used, for example, as the sole electric starter motor power sources for automotive vehicles powered by multi-cylinder engines with reciprocating pistons when the vehicles are to be operated in an engine start-stop mode to conserve fuel. Such batteries typically utilize non-aqueous solutions of lithium salts, such as LiPF6 or LiBF4, in combination with durable lithium intercalating electrodes. In accordance with this disclosure the performance of the battery's electrolyte and cells over a wide ambient temperature range is enhanced by a mixture of five miscible solvents formed of lower alkyl moieties. The quinary solvent mixture comprises two cyclic alkyl carbonates, two linear alkyl carbonates, and with a major portion of an alkyl ester.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 25, 2020
    Assignee: GM Global Technology Operations LLC
    Inventor: Shawn Deng
  • Patent number: 10751694
    Abstract: A method of making a metal organic framework (MOF)-polymer composite material includes forming a homogeneous solution comprising a solvent, a metal salt, a polymer which is soluble in the solvent, and a reactant which can be synthesized to provide an organic linker during formation of a MOF structure, synthesizing the homogeneous solution to crystallize a MOF structure in the homogenous solution to yield the MOF structure distributed in a remainder solution, applying an antisolvent to the remainder solution with the MOF structure distributed in the remainder solution to form a polymer-rich phase, where the MOF structure is integrated into the polymer matrix during forming of the polymer matrix to produce a MOF-polymer composite material. The MOF-polymer composite material can be formed on a substrate to produce a MOF structured object, which can be a membrane, film, or other object.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: August 25, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Anne M. Dailly, Fang Dai, Timothy J. Fuller
  • Patent number: 10751830
    Abstract: A welding electrode is disclosed that includes an electrode welding shell and a blind adapter that are joined together to cooperatively define an internal cavity. The electrode welding shell and the blind adapter may be integrally formed or they may be distinct components that are attached together. The presence of the internal cavity defined by the electrode welding shell and the blind adapter reduces the thermal mass of the welding electrode and slows the rate of conductive heat transfer from the weld face to a cooling fluid, which allows in the center of the weld face to retain heat for a longer duration once current flow through the welding electrode is terminated, thereby positively affecting the spot welding process for particular types of workpiece stack-ups including those that include an aluminum workpiece and an overlapping adjacent steel workpiece.
    Type: Grant
    Filed: April 8, 2017
    Date of Patent: August 25, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: David R. Sigler, David S. Yang
  • Patent number: 10754338
    Abstract: An autonomous vehicle controlled based upon the output of a trained object classifier is described herein. The object classifier is trained using labeled training data generated by a pipeline configured to assign labels to unlabeled sensor data. The pipeline includes transmitting sensor signal data capturing an object to individual computing devices for indications of an object type, wherein a label is assigned to the object based on the indications and provided to a data store as labeled training data. A learning system receives the labeled training data and generates a trained object classifier (e.g., a neural network) that is deployed in an autonomous vehicle to control operation of a mechanical system based on an output thereof.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 25, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Matthew Deiters, Quinn Johnson
  • Publication number: 20200263456
    Abstract: A system is used to control access into a vehicle having a vehicle body defining a vehicle interior, a vehicle exterior, and an access opening. The vehicle also has an access door for selectively covering and uncovering at least a portion of the access opening. The system includes a latch configured to selectively fasten the door to the vehicle body and release the door therefrom. The system also includes a cable configured to operate the latch and thereby release the door from the vehicle body. The system additionally includes a door presenter configured to shift the door away from the vehicle body. The system also includes a mechanism configured to sequentially actuate the cable and the door presenter. The system further includes an electric motor configured to power the mechanism such that the door is shifted away from the vehicle body by the door presenter after the door is released.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 20, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Besi Rrumbullaku, Jeffrey L. Konchan, Jeffrey R. Nowicki
  • Publication number: 20200263622
    Abstract: A system or method for determining virtual data of a system, relative to a measurement point having a sensor located nearby, is determined by a controller. The system calculates modeled data at the measurement point, filters the modeled data to determine filtered data, and calculates a differential between the modeled data and the filtered data to determine a compensation term. The system also determines raw-sensed data from the sensor at the measurement point, and combines that raw-sensed data with the compensation data to calculate the virtual data at the measurement point. In some configurations, the modeled data is determined from a physics-based model. Furthermore, filtering the modeled data may include using a low-pass filter, and a time constant for the low-pass filter may be calculated based on operating conditions of the system.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 20, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Giuseppe Conte, Carmen Pedicini, Vincenzo Alfieri
  • Patent number: 10746075
    Abstract: A vehicle system includes a vehicle component, a battery, and a thermoelectric module coupled to the component to allow heat transfer between the catalytic converter and the thermoelectric module, wherein the thermoelectric module is electrically connected to the battery. The vehicle system further includes a temperature sensor coupled to the vehicle component. The temperature sensor is configured to measure the temperature of the vehicle component. The vehicle system further includes a controller in electronic communication with the thermoelectric module. The controller is programmed to switch the thermoelectric module among the heating mode, the cooling mode, and the power-generation mode based on the temperature of the vehicle component. The vehicle component may be an exhaust manifold, a turbocharger turbine housing, an exhaust gas conduit coupled between an exhaust manifold and a catalytic converter, and/or a catalytic converter.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: August 18, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Su Jung Han, Sharon Xiaobin Li
  • Patent number: 10749268
    Abstract: A radio frequency (RF) antenna array for an RF printed circuit board (RF-PCB) having a PCB ground layer includes an interposer assembly, conductive pillars, and load element. The interposer assembly includes a substrate, a ground layer defining one or more apertures, a dielectric layer, and a microstrip trace. The substrate is spaced apart from the RF-PCB. The interposer ground layer is deposited onto the substrate. The dielectric layer is deposited onto the interposer ground layer. The microstrip trace, positioned on the dielectric layer, receives and directs incident RF energy along the longitudinal axis. The pillars electrically connect the ground layers and structurally support the substrate, such that RF energy along the trace couples to the upper surface of the interposer assembly through the aperture(s). The load element connects in series to the microstrip trace at a distal/terminal end of the array.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 18, 2020
    Assignee: GM Global Technology Operations LLC
    Inventor: Jonathan J. Lynch
  • Patent number: 10744718
    Abstract: A method or apparatus for joining a first component to a second component with an amalgamation plate includes heating the first component, the second component, the amalgamation plate, or combinations thereof, with either a joining tool or a heating element. The components are attached to the amalgamation plate with the joining tool, such that the first component, amalgamation plate, and the second component are fixedly attached to one another, and the amalgamation plate may be substantially surrounded by the first component and the second component, such that it is hidden from exposure. Portions of the amalgamation plate may be embedded into the components via rotation and/or linear force. A portion of the amalgamation plate may be recessed within the joining tool or an anvil before attaching the amalgamation plate to the either component.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: August 18, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Ryan Gergely, Matthew Simonin, Kevin Stang
  • Patent number: 10744682
    Abstract: A method of forming channels within a substrate includes: (a) molding a sacrificial component directly into the substrate; (b) igniting the sacrificial component to cause a deflagration of the sacrificial component, thereby forming a channel in the substrate; and (c) cleaning the channel in the substrate to remove byproducts of the deflagration of the sacrificial component. The sacrificial component includes a combustible material with a protective shell, and the substrate includes a polymeric material.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: August 18, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Nicole Ellison, Anthony M. Coppola
  • Patent number: 10745017
    Abstract: A method for controlling a transmission of a vehicle includes: determining, via an electronic controller, a predicted lateral G-force that will act on the vehicle while the vehicle moves along a road curve using image data from a front camera of the vehicle before the vehicle moves along the road curve; communicating, via the electronic controller, the predicted lateral G-force to a transmission controller; and and controlling, via the transmission controller, the transmission of the vehicle based on the predicted lateral G-force.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: August 18, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Henry R. Wright, Rakesh Mohanty, Crystal J. Nassouri
  • Publication number: 20200257292
    Abstract: Presented are automated driving systems for executing intelligent vehicle operations in mixed-mu road conditions, methods for making/using such systems, and vehicles with enhanced headway control for transitional surface friction conditions. A method for executing an automated driving operation includes a vehicle controller receiving sensor signals indicative of road surface conditions of adjoining road segments, and determining, based on these sensor signals, road friction values for the road segments. The controller determines whether the road friction value is increasing or decreasing, and if a difference between the road friction values is greater than a calibrated minimum differential. Responsive to the friction difference being greater than the calibrated minimum differential and the road friction value decreasing, the vehicle controller executes a first vehicle control action.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 13, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Qingrong Zhao, Bakhtiar B. Litkouhi, Nikolai K. Moshchuk
  • Publication number: 20200257304
    Abstract: Autonomous control of a subject vehicle including a longitudinal motion control system includes determining states of parameters associated with a trajectory for the subject vehicle and parameters associated with a control reference determined for the subject vehicle. A range control routine is executed to determine a first parameter associated with a range control command based upon the states of the plurality of parameters, and a speed control routine is executed to determine a second parameter associated with a speed control command based upon the states of the plurality of parameters. An arbitration routine is executed to evaluate the range control command and the speed control command, and operation of the subject vehicle is controlled to achieve a desired longitudinal state, wherein the desired longitudinal state is associated with a minimum of the range control command and the speed control command.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Nikolai K. Moshchuk, Kausalya Singuru, David Andrés Pérez Chaparro
  • Publication number: 20200256231
    Abstract: A reductant delivery system for an internal combustion engine is arranged to inject a reductant into the exhaust aftertreatment system upstream of a catalytic device. A method for controlling the reductant delivery system includes operating the fluidic pump at a preset state, operating the injector at a zero-flow state, and monitoring, via a pressure sensor, a pressure in the reductant delivery system upstream of the injector to determine a zero-flow pressure. The injector is activated under a preset condition and an actual pressure drop upstream of the injector is monitored. A pressure drop deviation is determined based upon the actual pressure drop upstream of the injector and an expected pressure drop upstream of the injector. An adjustment to the activation of the injector is determined based upon the pressure drop deviation, and the injector is controlled based upon the adjustment.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 13, 2020
    Applicant: GM Global Technology Operations LLC
    Inventor: Francesco Laviola
  • Patent number: 10741070
    Abstract: A method to control a host vehicle includes: detecting, by a controller of the host vehicle, objects, wherein detecting objects includes receiving remote-object data, the remote-object data includes class data and location data, the objects include remote vehicles and remote infrastructure; assigning, by the controller, an object class to each of the detected objects based on the class data; assigning, by the controller, a priority value to each of the detected objects based on the object class of each of the detected objects; and assigning, by the controller, a transmission time interval (TTI) to the CSMs based on the priority value to modify the TTI of each of the CSMs in accordance with the assigned TTI; and transmitting the CSMs to the remote vehicles.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: August 11, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Vivek Vijaya Kumar, Hariharan Krishnan, Bo Yu
  • Publication number: 20200249279
    Abstract: A method for diagnosing battery pack faults includes connecting a diagnostic service tool (DST) to the battery pack and measuring battery parameters using one or more electrical sensors, including a voltage of each cell/cell group. The method includes calculating, via the DST using the battery parameters, a section-average state of charge (SOC) of each battery section and identifying, from among the cells/cell groups of each respective section, a particular one of the cells or cell groups having a lowest cell SOC. For each respective battery section, a ?SOC value is calculated as a difference between the section-average and lowest cell SOC, including comparing the ?SOC value for each section to a calibrated threshold. A repair action is executed or initiated with respect to the battery pack, via the DST, responsive to the ?SOC value for one or more sections exceeding the calibrated threshold.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 6, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Andrew J. Cornelli, Ciro A. Spigno
  • Publication number: 20200248618
    Abstract: An engine control system of a vehicle includes a cylinder control module configured to: determine a target sequence for at least activating and deactivating cylinders of an engine based on a torque request; and activate and deactivate the cylinders of the engine according to the target sequence. A values module is configured to determine, based on the target sequence, a plurality of coefficients and an offset value. An indicated mean effective pressure (IMEP) determination module is configured to determine an IMEP of a first cylinder based on: the plurality of coefficients; the offset value; and a plurality of engine speeds at a predetermined crankshaft positions, respectively.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 6, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Colby T. Stanley, Xiangkun Kong, David S. Mathews, Nicholas J. Kalweit