Patents Assigned to GM Global Technologies Operations LLC
  • Patent number: 10193191
    Abstract: A battery module includes a pack section and a cover assembly. The pack section has an interconnect board, conductive channels, and battery cells extending through the interconnect board. Each battery cell includes electrode cell tabs joined to a corresponding conductive channel. The cover assembly is connectable to the pack section, and has conductive interconnect members, electrical fuses, and sense lines built into or integral with a cover plate. The interconnect members extend from the cover plate and form part of an electrical circuit between the conductive channels of the pack section and the fuses and sense lines of the cover plate when the cover assembly is connected to the pack section. An electrical system includes the battery module, a DC voltage bus, and at least one high-voltage component connected to the battery module via the DC voltage bus. The electrical system may be part of a motor vehicle.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Yue Fan, Charanjit S. Chawa, Pinakin Naik
  • Patent number: 10190481
    Abstract: A diagnostic system for an engine of a vehicle includes a temperature determination module, a comparison module, and a fault indication module. The temperature determination module receives an indication of whether one or more cylinders within the engine are deactivated and selects a first temperature threshold based on the indication. The comparison module selectively determines whether a temperature of engine coolant is less than the first temperature threshold. The fault indication module diagnoses a fault in response to the comparison module determining that the temperature of the engine coolant is less than the first temperature threshold.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Stephen Paul Levijoki, Eric E. Klauser, John W. Siekkinen
  • Patent number: 10189469
    Abstract: A method of controlling a powertrain of a vehicle includes opening and/or closing one or more of a first switching device, a second switching device, a third switching device, and engaging and/or disengaging at least one of a pair of actuators for a starter mechanism or a motor/generator clutch. Many different control modes are provided for the powertrain by changing the operation of a motor-generator between a motor or a generator, and changing the electrical connections between a first energy storage device, a second energy storage device, an auxiliary electric system, the starter mechanism, and the motor-generator.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Suresh Gopalakrishnan, Michael G. Reynolds, Chandra S. Namuduri, Kenneth J. Shoemaker, David W. Walters
  • Patent number: 10190684
    Abstract: A powertrain system including an internal combustion engine rotatably coupled to a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining minimum and maximum CVT input speeds in response to an accelerator pedal position, and monitoring vehicle speed and a CVT input speed. A target CVT input acceleration rate is determined based upon the vehicle speed, and a desired speed ratio is determined that is responsive to the target CVT input acceleration rate. The CVT is controlled based upon the desired speed ratio.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: David H. Vu, Christopher Jay Weingartz, Craig J. Hawkins, Pratap A. Naick
  • Patent number: 10190533
    Abstract: An internal combustion engine includes a component configured to be subjected to combustion gasses, the component includes a substrate presenting a surface and a coating applied to the surface of the substrate. The coating includes an insulating layer applied to the surface having a plurality of microspheres and a sealing layer bonded to the insulating layer and seals against the insulating layer.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Russell P. Durrett, Paul M. Najt, Peter P. Andruskiewicz, IV, Tobias A. Schaedler, Gary P. Hill, John H. Martin, Christopher J. Ro
  • Patent number: 10190483
    Abstract: A method of controlling an engine system, having both an electric driven compressor and an exhaust driven turbocharger for compressing a flow of combustion air for an internal combustion engine, includes defining a total pressure ratio target for the flow of combustion air, and defining a distribution factor to calculate a first portion of the total pressure ratio target and a second portion of the total pressure ratio target. The sum of the first portion of the total pressure ratio target and the second portion of the total pressure ratio target is equal to the total pressure ratio target. The electric driven compressor is controlled to provide the first portion of the total pressure ratio target, and the exhaust driven turbocharger is controlled to provide the second portion of the total pressure ratio target.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Rocco Fuso, Francesco Di Gennaro
  • Patent number: 10189227
    Abstract: A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Anil K. Sachdev, Raja K. Mishra, Jon T. Carter, Tyson W. Brown, Blair E. Carlson, David R. Sigler, Robert N. Saje, Matthew P. Simonin
  • Patent number: 10190559
    Abstract: A system includes an electric machine coupled to an engine and configured to start the engine from an inactive state. A controller executes a first control algorithm while output speed of the electric machine is less than a first speed threshold, and also executes a second control algorithm while the output speed is greater than the first speed threshold and less than a second speed threshold. Additionally, the controller is programmed to execute a third control algorithm while the output speed is greater than the second speed threshold. The first control algorithm includes operating the electric machine using trapezoidal current control with pulse width modulation. The second control algorithm includes operating the electric machine using six-step voltage control with a variable phase advance angle. The third control algorithm includes operating the electric machine using six-step voltage control with a predetermined fixed phase advance angle.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Chandra S. Namuduri, Thomas W. Nehl
  • Patent number: 10190561
    Abstract: A method of rapid starting an internal combustion engine includes determining that the engine is stopped and detecting an engine start request. The method also includes enabling a starter assembly having a brushless electric motor including a stator and a rotor and configured to drive a pinion gear, and engaging the pinion gear with the engine flywheel. The method also includes determining a present angular position of the rotor relative to the stator configured to generate a first rotor torque. The method additionally includes applying an electrical current to the motor, in response to the determined angular position of the rotor, to turn the rotor to a predetermined starting angular position configured to provide a second torque that is greater than the first torque. Furthermore, the method includes commanding the motor to spin the rotor and thereby apply the second torque via the pinion gear to start the engine.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Chandra S. Namuduri
  • Patent number: 10189377
    Abstract: A seat assembly includes a first member and a second member located proximate to the first member. An adjustment system for adjustably positioning the first and second members of the seat assembly includes at least one positioning mechanism operatively connected to one or more of the first member and the second member and at least one actuator connected to the at least one positioning mechanism. A control assembly including a housing having a control region, one or more guide surfaces extending from the control region and one or more recessed areas cooperating with the one or more guide surfaces. At least one of the guide surfaces or recessed areas cooperates with at least one switch configured to send a first signal to a controller when a user activates the at least one switch. The controller is configured to generate an activation signal to activate the at least one actuator.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeff E. Nasca, Daniel W. Booth, William Otto, Leigh A. Berger, Scott D. Thomas
  • Patent number: 10190521
    Abstract: A method of operating an internal combustion engine having a turbocharger for pressurizing an intake airflow and an after-treatment (AT) system including an AT device for reducing nitrogen oxides (NOX) concentration in the engine exhaust gas. The method includes operating the engine with a variable high-pressure exhaust gas recirculation (EGR) and low-pressure EGR split in the intake airflow. The method also includes determining the NOX concentration in the exhaust gas and determining a current high-pressure EGR to low-pressure EGR split in the intake airflow. The method additionally includes determining an EGR corrective factor using the determined current high-pressure EGR to low-pressure EGR split and applying the determined EGR corrective factor to the determined NOX concentration to generate a corrected NOX concentration. Furthermore, the method includes regulating operation of the AT system to treat the exhaust gas via the AT device in response to the generated corrected NOX concentration.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Giorgio Sticchi, Francesco Castorina, Andrea Dutto
  • Publication number: 20190024727
    Abstract: A torque transmitting device (10) includes a clutch housing (14) rotatable about an axis (A), a first set of clutch plates (20A) splined to the clutch housing (14), and a second set of clutch plates (20B) interleaved with the first set and rotatable about the axis (A) of rotation. A push plate assembly (28) is splined to the clutch housing (14) for rotation therewith. A roller assembly (42) includes a roller housing (48) splined to the clutch housing (14), a roller supporter (54) housed in the roller housing (48), and a roller element (62) supported by the roller supporter (54). A wedge assembly (12) includes a wedge housing (64) connected to a wedge block (24). The wedge housing (64) includes a ramp member (70) defining a ramp surface (16) with the roller element (62) contacting the ramp surface (16).
    Type: Application
    Filed: March 9, 2016
    Publication date: January 24, 2019
    Applicants: GM Global Technology Operations LLC, Shanghai Jiao Tong University
    Inventors: Chunhao J. Lee, Jian Yao, Li Chen, Zhao Ding, Chengliang Yin
  • Patent number: 10184442
    Abstract: An interior permanent magnet electric machine includes a stator having a plurality of teeth disposed around a circumference oriented radially towards a center defining slots interposed between each of the teeth, and a conductive winding wrapped around each of the teeth of the stator to receive an electrical current. The electric machine also includes a rotor which is rotatable relative to the stator. The rotor defines a plurality of openings to receive permanent magnets near an outer portion of the rotor and a number of spokes interposed between mass reduction cutouts located closer to the center relative to the permanent magnets. Each of the permanent magnets defines a magnetic pole and each of the spokes is circumferentially aligned with one of the magnetic poles.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 22, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Lei Hao, Chandra S. Namuduri, Murali Pandi, Thomas W. Nehl
  • Patent number: 10183696
    Abstract: Methods and systems are provided for controlling a steering system of a vehicle is provided. A detection unit is configured to obtain a compass heading, a global positioning system (GPS) heading, or both. A processor is coupled to the detection unit, and is configured to determine whether a vehicle is on a straight line path using the compass heading, the GPS heading, or both, and to selectively implement a feature of the steering system based on whether it is determined that the vehicle is not on a straight line path.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: January 22, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Kenneth L. Oblizajek, Stephen R. Pastor, David M. Caldwell, John D. Sopoci
  • Patent number: 10179566
    Abstract: An electrical system includes a contactor having a pair of contacts and a coil configured to electrically close and open the contacts. The electrical system also includes a high voltage (“HV”) circuit including a power supply electrically connected to at least one of the contacts of the contactor. The electrical system further includes a low voltage (“LV”) circuit electrically connected to the coil and configured to selectively energize the coil of the contactor. A disconnect mechanism is coupled with the LV electrical circuit and operable to electrically open the LV electrical circuit to actuate electrical opening of the contacts of the contactor.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: January 15, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew J. Namou, David J. Mifsud
  • Patent number: D838016
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 8, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Robert B. McMahan, Gary W. Ruiz
  • Patent number: D838390
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 15, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Robert B. McMahan, Candice M. Willett
  • Patent number: D838391
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 15, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Robert B. McMahan, Gary W. Ruiz
  • Patent number: D839157
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian J. Smith, Robin Krieg
  • Patent number: D839163
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 29, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Therese A. Pinazzo, Robin Krieg