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

  • Publication number: 20180051993
    Abstract: A method and system are disclosed to account for improving the accuracy of a calculated position of a vehicle in transit. Position measurement values for different locations are collected. Position measurement values of a plurality of vehicles are collected such that the method is particularly effective in instances, in which dense traffic makes it desirable to determine the position of the vehicles in a particularly accurate fashion. Each position measurement value is allocated to a section of a traffic route. A systematic deviation is estimated based on a comparison of the position measurement values allocated to the section with a reference position. Finally, a position value measured along the traffic route section by the systematic deviation is corrected.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 22, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Nikolas WAGNER, Maximilian HARR
  • Publication number: 20180053419
    Abstract: A control system and method of controlling a mobile platform safety system is provided. User input including a modification to a predefined alert response associated with the mobile platform safety system is received, the modification being associated with a geographic location. The pre-defined response, the user modification, and global positioning system (GPS) data are processed to generate therefrom a location specific personalized alert response for the mobile platform safety system.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 22, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: RAYMOND J. KIEFER, MICHAEL G. CARPENTER, MICHAEL A. WUERGLER
  • Publication number: 20180050732
    Abstract: A system for a vehicle with a wheel housing includes a wheel well liner secured to the wheel housing and disposed in a wheel well defined by the wheel housing. The system further includes a heating element in contact with the wheel well liner and operable to heat the wheel well liner. A method of heating a wheel well liner includes determining whether an ambient temperature around the wheel well liner is less than a predetermined temperature, determining whether a weight of a load on the wheel well liner is greater than a predetermined weight, and activating a heating element in contact with the wheel well liner if the ambient temperature is less than the predetermined temperature and the weight on the wheel well liner is greater than the predetermined weight.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 22, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael A. Faucett, JR., David T. Renke
  • Publication number: 20180050604
    Abstract: An electrical system is usable with an offboard charging station and configured to dynamically adjust a power limit of the electrical system during a battery charging process. The system includes a battery pack, charge coupler, power electronic components, temperature sensor(s), and a controller. The components include a most-limiting component, and are electrically connected to the battery pack with corresponding temperature-based operating performance information. The information describes a maximum allowed charging current over different time intervals. The most-limiting component has a lowest allowed charging current. The controller executes a method by determining a component temperature using the measured temperature(s), and requests increased charging current from the power supply over one or more of the time intervals to supply the battery pack with the maximum allowed charging current of the most-limiting component.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 22, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William M. Hare, Michael A. Assenmacher, Nicholas J. Hainer, Christopher J. Twarog
  • Publication number: 20180051492
    Abstract: Disclosed are vehicle door handle chassis, methods for making such chassis, and vehicle door assemblies with handle chassis. An example is a handle chassis for a motor vehicle door assembly. The door assembly includes a door panel, which has either a thin or a thick door panel construction. The handle chassis includes a chassis frame that secures to the door panel. The chassis frame has handle apertures for securing the door handle to the chassis. A mounting boss, which projects from the chassis frame, includes a distal end with a stepped region having high and low end faces each with a distinct height. The high end face presses against the inboard surface of a door panel having the thin construction. For a door panel having the thick construction, the low end face presses against the inboard surface while the first end face seats inside a hole in this door panel.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 22, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Eric J. Smith
  • Publication number: 20180051622
    Abstract: An internal combustion engine is described, and includes a method for operating that includes determining an observed carbon monoxide (CO) ratio in an exhaust gas feedstream, determining an observed in-cylinder scavenging based upon the observed CO ratio in the exhaust gas feedstream, and controlling, by a controller, control states for the variable cam phasing system to control opening times of engine intake valves in relation to closing times of engine exhaust valves based upon the observed in-cylinder scavenging.
    Type: Application
    Filed: March 13, 2015
    Publication date: February 22, 2018
    Applicant: GM Global Technology Operations LLC
    Inventors: Jim LIU, Yongsheng HE
  • Publication number: 20180051496
    Abstract: A vehicle and a door assembly each include an inner panel and an outer panel coupled to each other to define a door. A first handle is attached to the outer panel. A mirror apparatus is supported by the door and spaced apart from the first handle. A lock apparatus is supported by at least one of the door and the mirror apparatus. The lock apparatus is disposed closer to the mirror apparatus than the first handle.
    Type: Application
    Filed: August 16, 2016
    Publication date: February 22, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jeffrey L. Konchan, Terrence P. Costigan, Charles R. Quinn, James C. O'Kane
  • Patent number: 9897159
    Abstract: A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Robert P. Marble, Gary Klein, Charles C. Weddle, Michael E. Mcguire
  • Patent number: 9895961
    Abstract: An airflow outlet comprising at least a first plurality of airflow direction elements, a second plurality of airflow direction elements, and an actuation system is provided. Each of the respective first airflow direction elements and second airflow direction elements include a vane shaft and at least one vane element disposed along the vane shaft and integrally coupled thereto. The actuation system is configured to control the position of the vane elements of each of the airflow direction elements. The actuation system includes a drive element engaged with the driven element, which is further engaged with the vane shafts of each of the airflow direction elements. A rotation of the drive element causes a proportional rotation of the vane elements of the each of the airflow direction elements to an operating position, which defines an airflow direction through the airflow outlet.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventor: Gerard Alan Brinas
  • Patent number: 9897000
    Abstract: A piston compound internal combustion engine is disclosed with an expander piston deactivation feature. A piston internal combustion engine is compounded with a secondary expander piston, where the expander piston extracts energy from the exhaust gases being expelled from the primary power pistons. The secondary expander piston can be deactivated and immobilized, or its stroke can be reduced, under low load conditions in order to reduce parasitic losses and over-expansion. Two mechanizations are disclosed for the secondary expander piston's coupling with the power pistons and crankshaft. Control strategies for activation and deactivation of the secondary expander piston are also disclosed. In addition, six-cylinder engine configurations are defined by replicating groups of two power pistons and one expander piston.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Russell P. Durrett, Paul M. Najt, Peter P. Andruskiewicz
  • Patent number: 9896783
    Abstract: Methods of producing continuous carbon fibers for composites having enhanced moldability are provided. Discrete regions are introduced into a continuous precursor fiber comprising an acrylic polymer material, such as polyacrylonitrile (PAN), as the precursor fiber is formed. The precursors may be heterogeneous fibers having a second distinct material interspersed in discrete regions with the acrylic polymer material. Alternatively, the precursors may be heterogeneous fibers where laser is applied to the acrylic polymer material in discrete regions to cause localized molecular disruptions. After the continuous precursor fiber is heated for carbonization and/or graphitization, the precursor forms a continuous carbon fiber having a plurality of discrete weak regions. These relatively weak regions provide noncontiguous break points that reduce stiffness and improve moldability for carbon fiber polymeric composites, while retaining high strength levels.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Hamid G. Kia
  • Patent number: 9896979
    Abstract: A system is provided for controlling a temperature of oil in a power-plant operable to propel a vehicle. The system includes a heat-exchanger arranged relative to the power-plant. The heat-exchanger is configured to receive the oil from the power-plant, modify the temperature of the oil, and return the modified temperature oil to the power-plant. The system also includes a valve configured to direct the oil through the heat-exchanger during a warm-up operation of the power-plant such that the temperature of the oil is increased. The valve is also configured to direct the oil to bypass the heat-exchanger during a low load operation of the power-plant such that the temperature of the oil is increased. Additionally, the valve is configured to direct the oil through the heat-exchanger during a high load operation of the power-plant such that the temperature of the oil is decreased.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Joseph J. Noonchester, Jonathan Pung, Thomas A. Spix
  • Patent number: 9896010
    Abstract: A seat assembly includes a seatback, a seat cushion. The seat assembly also includes a seat frame having a first seat frame structure configured to support the seatback and a second seat frame structure configured to support the seat cushion. A hideaway table is positioned in the seat cushion. The first seat frame structure is operatively connected to the second seat frame structure. The seat cushion defines a seat cushion support surface for an occupant of the seat assembly and includes a first cushion portion fixed to the second seat frame structure and a second cushion portion operatively connected to the first cushion portion. The second cushion portion is configured to pivot relative to the first cushion portion to selectively cover and uncover the table. A vehicle having such a seat assembly is also disclosed.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventor: Mario A. Berno
  • Patent number: 9896763
    Abstract: A powder coating apparatus reactor includes a loading port for a powder material, an inlet for one or more coating precursors, and a reaction chamber having an inner surface and a plurality of axial baffles. Each axial baffle extends inwardly from the inner surface of the reaction chamber of the rotary vessel. The plurality of axial baffles is configured to keep the powder material flowing within the reaction chamber during rotation of the rotary vessel to facilitate contact between the powder material and the one or more coating precursors. The powder coating apparatus further includes a rotary vacuum seal located at the loading port. The powder coating apparatus also includes a motor capable of actuating the rotary vessel about a center axis for rotation during reaction of the powder material with the coating precursors in the reaction chamber. Methods for coating powder materials with such a reactor are also provided.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gayatri V. Dadheech, Mei Cai, Prasad Gadgil
  • Patent number: 9898931
    Abstract: A method and apparatus for detecting a vehicle hazard are provided. The method includes: detecting a second vehicle based on information received from at least one sensor of a first vehicle; determining whether the second vehicle presents a hazard based on the information received from the at least one sensor of the first vehicle; and transmitting a notification alerting of the second vehicle if it is determined that the second vehicle presents a hazard.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: James N. Nickolaou
  • Patent number: 9895969
    Abstract: A push-push latch includes a slider slidably disposed on a frame. A resilient element is to urge the slider toward an extended state. The slider or the frame defines a cam-track. A pin member is connected to the frame or the slider. The pin member selectably engages a closed course in the cam-track to cause the slider to alternate between a retracted state and the extended state in response to alternating application and removal of an actuating force on the slider. An interference member is on the frame to selectively prevent the pin member from engaging the closed course thereby locking the slider in the retracted state. A pivotable catch is rotatably on the slider to open in the extended state and to close in the retracted state. A shape memory alloy actuator selectively causes the interference member to selectively prevent the pin member from engaging the closed course.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Paul W. Alexander, Roger Herbert Culver, Robert Dallos, Jr., Aragorn Zolno, James Holbrook Brown
  • Patent number: 9897097
    Abstract: A turbocharger for an internal combustion engine includes a bearing housing defining a bearing bore and a hybrid journal bearing system disposed within the bore. The hybrid journal bearing system includes first and second journal bearings. The first journal bearing is a semi-floating bearing and the second journal bearing is a full-floating bearing. The turbocharger also includes a shaft having a first end and a second end, wherein the shaft is supported by the journal bearing system for rotation about an axis within the bore. The turbocharger also includes a turbine wheel fixed to the shaft proximate to the first end and configured to be rotated about the axis by post-combustion gases emitted by the engine. Additionally, the turbocharger includes a compressor wheel fixed to the shaft proximate to the second end and configured to pressurize an airflow being received from the ambient for delivery to the engine.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Louis P. Begin, Dingfeng Deng, Isaac H. Y. Du
  • Patent number: 9897056
    Abstract: A protective cover assembly for a fuel pump in a motor vehicle includes a hooded cover having a first face and a second face in addition to distal and proximate stud bolts, and a base fastener. The hooded cover defines a plurality of apertures operatively configured to receive a corresponding fastener. The distal stud bolt may be operatively configured to affix a distal end of the hooded cover to a cam carrier. The proximate stud bolt may be operatively configured to affix a middle region of the hooded cover to the cam carrier while the base fastener may be operatively configured to affix a lower portion of the hooded cover to the cam carrier. The proximate stud bolt includes an outer diameter feature which is operatively configured to engage with a plunger region of the pump assembly when the proximate cover assembly is subjected to a load.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Matthew D Kimball, Marc L Friedrich
  • Patent number: 9897469
    Abstract: A resolver rotatably coupled to a rotatable member is described, including a method for evaluating an output signal therefrom. This includes supplying an excitation signal to the resolver and dynamically determining corresponding output signals from the resolver. A plurality of datasets are determined, with each dataset including digitized states of the excitation signal supplied to the resolver and corresponding output signals from the resolver. The digitized states of the excitation signal and the corresponding output signals from the resolver for each of the datasets are arithmetically combined, and a moving average thereof is determined. A phase shift error term is determined based upon the moving average, and a phase shift is determined between the excitation signal and the corresponding output signals based upon the phase shift error term.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Rachel L. Hoener, Yo Chan Son, Milan Ashok Vadera
  • Patent number: 9900315
    Abstract: A system includes a vehicle communications platform (VCP) operatively disposed in a vehicle and a control device. The control device selects a privacy ON mode or a privacy OFF mode. The privacy ON mode enables the VCP to synchronize a privacy setting of a mobile communications device to a vehicle notification setting, and is triggered when the privacy setting of the device is on, and either at least one passenger is present in the vehicle or a user indicates that the VCP should synchronize the privacy setting to the vehicle notification setting. The privacy OFF mode inhibits the VCP from synchronizing the privacy setting to the vehicle notification setting, and is triggered when the privacy setting of the device is off, or no passengers are present in the vehicle, or the user indicates that the VCP should not synchronize the privacy setting to the vehicle notification setting.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Munib Ahmed Yusuf, Shaun S. Marshall
  • Patent number: 9899902
    Abstract: An internal permanent magnet machine includes a wound stator, and a rotor core. The rotor core includes a plurality of first pole cavities, and a plurality of second pole cavities. One of a plurality of magnets is disposed within each of the pole cavities, and is injection molded into their respective cavity. The first pole cavities and the second pole cavities are each arranged in a pre-defined configuration, such that each pole cavity of the first pole cavities is identically positioned with one of the pole cavities of the second pole cavities within their respective pre-defined configurations, to define a corresponding pair of pole cavities. The pole cavity of the first pole cavities and the pole cavity of the second pole cavities of at least one of the corresponding pair of pole cavities define a different shape relative to each other.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Sinisa Jurkovic, Khwaja M. Rahman
  • Patent number: 9897025
    Abstract: A direct fuel injection internal combustion engine fluidly coupled to an exhaust aftertreatment system is described and includes a plurality of fluidly coupled exhaust purifying devices and an exhaust gas sensor. A method of controlling the engine includes, activating, via a heater controller, a heating element of the exhaust gas sensor in response to starting the internal combustion engine. An exhaust gas feedstream is monitored to determine a temperature of the exhaust gas sensor. Engine control to effect heating of one of the exhaust purifying devices is permitted only when a temperature of the exhaust gas sensor is greater than a threshold temperature.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 20, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Chad E. Marlett, James L. Meyer, Jianwen Li, Marco Girotto
  • Patent number: 9899691
    Abstract: System and methods for detecting anode contamination in a fuel cell system are presented. In certain embodiments, a high frequency resistance response of a fuel cell system may be measured at a plurality of frequencies. In some embodiments, the rate of change of high frequency resistance response over time may differ at varied frequencies based on an amount of anode contamination in the fuel cell system. Accordingly, systems and methods disclosed herein may compare high frequency resistance responses taken at a plurality of measured frequencies to detect anode contamination and initiate associated recovery procedures in the fuel cell system.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Donald H. Keskula, Mark P. Adams, Kenneth L. Kaye, Swaminatha P. Kumaraguru, Jingxin Zhang
  • Patent number: 9899685
    Abstract: One embodiment includes a method comprising the steps of providing a first dry catalyst coated gas diffusion media layer, depositing a wet first proton exchange membrane layer over the first catalyst coated gas diffusion media layer to form a first proton exchange membrane layer; providing a second dry catalyst coated gas diffusion media layer; contacting the second dry catalyst coated gas diffusion media layer with the first proton exchange membrane layer; and hot pressing together the first and second dry catalyst coated gas diffusion media layers with the wet proton exchange membrane layer therebetween.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Matthew J Beutel, Timothy J Fuller
  • Patent number: 9899018
    Abstract: An apparatus and system for addressing road noise are provided. The apparatus is configured to determine at least one from among a location of a vehicle and a noise feature of a road on which the vehicle is traveling, retrieve road noise cancellation information based on the determined at least one from among the location of the vehicle and the noise feature of the road on which the vehicle is traveling, and output a signal to cancel road noise based on the road noise cancellation information. The apparatus may be installed in vehicle to address road noise heard by occupants of the vehicle.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frank C Valeri, Christophe A Stirlen, Scott M. Reilly
  • Patent number: 9898004
    Abstract: There is provided a method and system for operating a vehicle when a vehicle occupant experiences a potential medical condition. The system may include an external object control module (EOCM) configured to wirelessly receive diagnostic signals from an occupant-coupled device, such as a smart watch or implanted cardiac pacemaker. The method and system process the diagnostic signals, for example by determining the nature and/or severity of the potential medical condition and carrying out one or more responses in reaction thereto. The type of response carried out can depend on whether the occupant is a driver or passenger, as well as the nature and/or severity of the potential medical condition, and can range from giving medical instructions to vehicle occupants to automatically slowing the vehicle down and bringing it to a safe stop in the event that the driver is unable to do so.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Karl Mikkelsen
  • Patent number: 9897125
    Abstract: A fastener is provided. The fastener includes a fastening portion configured to fasten a body; and a retaining portion configured to retain a portion of the body after the fastening portion is fastened to the body. The fastener apparatus may be used to attach composite body materials to a vehicle.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: February 20, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bradley J. Blaski, Richard C. Janis, Pei-chung Wang
  • Publication number: 20180043756
    Abstract: A window system for a passenger compartment of a vehicle includes a window including an inner transparent layer, an outer transparent layer and a pixelated layer interposed therebetween. The pixelated layer includes a two-dimensional array of electrochromic cells and an electrode array that is electrically connected to the electrochromic cells. A controller determines, via an incident light monitoring subsystem, a field of view of a passenger and determines an intensity of incident light in relation to the field of view of the passenger. The controller is disposed to command a passenger compartment incident light management subsystem to activate selected electrochromic cells in the transparent window based upon the intensity of the incident light in relation to the field of view of the passenger.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael R. Kaphengst, Jamie L. Hamilton, Michael P. Van De Velde, Lara Jane S. Hadlocon, Breitner S. Marczewski, Dorel M. Sala, Ramona L. Winarski, Anthony J. Stefanski, Kyle Greene
  • Publication number: 20180043833
    Abstract: A key catcher for a storage unit including a trim panel, a compartment housing, and an openable compartment door having a length and an outer surface includes a sweeper and a biasing member. The sweeper is connected to the compartment housing and is configured to conform to the outer surface of the compartment door along the length of the compartment door. The biasing member is connected to the compartment housing and the sweeper and is configured to urge the sweeper toward the outer surface of the compartment door. The sweeper contacts the outer surface of the compartment door along the length of the compartment door when the compartment door is in an open position, a closed position, and any position between the open and closed positions such that a small item, such as a key, credit card, or change, cannot fall between the openable door and the trim panel.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Timothy A. Kiester, Douglas J. Amick, Kenton L. West
  • Publication number: 20180045290
    Abstract: A multi-speed clutch-damper assembly for selectively connecting an output of a power-source to an input of a transmission includes a planetary gear-set. The planetary gear-set is encased in a housing and configured to provide two selectable speed ratios and a damper between the power-source output and the transmission input. The planetary gear-set includes first, second, and third gear members. The second gear member is configured to be connected to the transmission input and the third gear member is configured to be selectively fixed to the housing. The planetary gear-set also includes an elastic element operatively connected to the second gear member and configured to generate torsional vibration damping between the output of the power-source and the input of the transmission. The clutch-damper assembly also includes a first clutch configured to selectively connect the power-source output to the first gear member for transmitting torque of the power-source to the transmission.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chi-kuan Kao, Kumar V. Hebbale, Dongxu Li
  • Publication number: 20180043900
    Abstract: Methods and systems are provided for determining a road surface friction coefficient and controlling a feature of the vehicle based thereon. In one embodiment, a method includes: receiving signals from an electronic power steering system and an inertial measurement unit; estimating parameters associated with an electronic power steering system model using an iterative optimization method; calculating an electronic power steering system variable using the electronic power steering system model, the estimated parameters and one or more of the received signals; determining whether the calculated electronic power steering system variable satisfies a fitness criterion; and when the calculated electronic power steering system variable does satisfy the fitness criterion, determining a road surface friction coefficient based on at least one of the estimated parameters.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: YADOLLAH SABRI, SIMON E. ZIMMERMAN, YINGMEI SI, STEVEN T. SCHWEITZER, QINGRONG ZHAO, QI ZHANG, NIKOLAI K. MOSHCHUK
  • Publication number: 20180046058
    Abstract: A window system for a passenger compartment of a vehicle includes a transparent window having a window treatment, an incident light monitoring subsystem, an incident light management subsystem and a controller. The incident light monitoring subsystem monitors incident light transmitted into the passenger compartment, determines a field of view of a passenger and determines an intensity of the incident light relative to the field of view of the passenger. The incident light management subsystem individually controls a plurality of light projectors to project a light beam that interacts with a subsection of the window treatment to modulate light transparency of one of the subsections of the window based upon the intensity of the incident light in relation to a field of view of the passenger.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael R. Kaphengst, Jamie L. Hamilton, Michael P. Van De Velde, Lara Jane S. Hadlocon, Breitner S. Marczewski, Dorel M. Sala, Ramona L. Winarski, Anthony J. Stefanski
  • Publication number: 20180045129
    Abstract: Methods and systems are provided for generating a predictive tachometer profile at a tachometer of a vehicle. An engine speed offset can be generated based on an engine acceleration and an accelerator pedal position rate. A predictive tachometer profile displayed at the tachometer can then be generated based on the engine speed offset and an actual engine speed.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: RICHARD I. CHANG, MATTHEW D. WHITTON
  • Publication number: 20180045236
    Abstract: An integrated amalgamation carrier can join parts. The integrated amalgamation carrier includes an amalgamation carrier body elongated along a longitudinal axis. In addition, the integrated amalgamation carrier includes a plurality of fasteners protruding from the amalgamation carrier body. The fasteners are integrated with the amalgamation body to form a one-piece structure.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Robert N. Saje, Bhavesh Shah, Matthew P. Simonin, Kevin Stang
  • Publication number: 20180045104
    Abstract: A turbocharger includes a compressor wheel configured to pressurize an airflow for delivery to an internal combustion engine. The turbocharger also includes a turbine wheel configured to be driven by the engine's post-combustion gases and drive the compressor wheel. The turbocharger additionally includes a waste-gate assembly. The waste-gate assembly includes a first waste-gate valve and a second waste-gate valve, wherein each of the first and second waste-gate valves is configured to selectively redirect at least a portion of the post-combustion gases away from the turbine wheel into the exhaust passage. A vehicle having an internal combustion engine operatively connected to such a turbocharger and also employing a controller configured to regulate the first and second waste-gate valves is also disclosed.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Maqsood Rizwan Ali Khan, Pulasti Bandara, Mark R. Claywell
  • Publication number: 20180043421
    Abstract: The indexing self-aligning hardware tool can join components and includes a first tool section including a die carrier, one or more dies coupled to the die carrier, and a first locator coupled to the die carrier. The indexing self-aligning hardware tool also includes a second tool section having a support body, one or more blankholders coupled to the support body, one or more punches movably disposed inside the blankholders, and a second locator coupled to the support body. The first locator and the second locator are configured to mate with a product feature locator of a component to align the first tool section relative to the second tool section.
    Type: Application
    Filed: August 12, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Matthew P. Simonin, Robert N. Saje, Bhavesh Shah, Kevin Stang
  • Publication number: 20180045126
    Abstract: An internal combustion engine includes a method for operating including, determining, using an accelerator pedal position sensor, an operator request for power and determining an engine operating point based upon the operator request for power. A motored-cylinder temperature is determined based upon the engine operating point, and a knock-limited combustion phasing point is determined based upon the motored-cylinder temperature and the engine operating point. Engine operating parameters associated with achieving the knock-limited combustion phasing point are selected. Operation includes controlling, by a controller, engine control states in response to the engine operating parameters associated with achieving the knock-limited combustion phasing point and the operator request for power.
    Type: Application
    Filed: March 13, 2015
    Publication date: February 15, 2018
    Applicant: GM Global Technology Operations LLC
    Inventors: Yongsheng HE, Jim LIU, David SUN, Jonathan T. SHIBATA
  • Publication number: 20180043946
    Abstract: An active spoiler system for a vehicle includes a spoiler body having an airfoil shape in a cross-sectional view. The vehicle includes a vehicle body arranged along a longitudinal body axis and having a first vehicle body end configured to face oncoming ambient airflow and an opposing second vehicle body end. The spoiler body is configured to be moveably mounted between the first vehicle body end and the second vehicle body end to generate an aerodynamic downforce on the vehicle body when the vehicle is in motion. The spoiler system also includes a first mechanism configured to selectively translate the spoiler body along the longitudinal body axis to thereby adjust along the longitudinal body axis a location of the aerodynamic downforce generated by the spoiler body.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Christopher J. Barber
  • Publication number: 20180043931
    Abstract: A method for performing autonomous operation of a vehicle is provided. The method identifies, by at least one processor, an error condition of an electric power steering (EPS) device onboard the vehicle; obtains, by the at least one processor, input trajectory data for the autonomous operation of the vehicle; calculates, by the at least one processor, a feedforward rear steer angle, based on the input trajectory data; calculates, by the at least one processor, a feedback signal of the feedforward rear steer angle; calculates, by the at least one processor, a final steer angle command, using the feedforward rear steer angle and the feedback signal; and operates a steering mechanism of the vehicle using the final steer angle command, to autonomously maneuver the vehicle according to the final steer angle command.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: PINAKI GUPTA, JIN-WOO LEE
  • Publication number: 20180045096
    Abstract: A method for controlling an exhaust after-treatment system connected to a diesel engine via a gas passage and having a diesel oxidation catalyst (DOC) and a “diesel-exhaust-fluid” (DEF) injector arranged downstream of the DOC and upstream of a selective catalytic reduction catalyst (SCR) includes detecting a flow of exhaust gas emitted by the engine into the gas passage. The method also includes detecting a level of nitrogen oxides (NOx) in the exhaust gas downstream of the SCR. The method additionally includes activating the DEF injector for a period of time to reduce the level of NOx to a predetermined NOx value. Furthermore, the method includes regulating an injection of fuel upstream of the DOC to clean the DEF injector via a stream of superheated exhaust gas if the period of time used to reduce the level of NOx to the predetermined NOx value is greater than a predetermined threshold value.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Raffaello Ardanese, Giovanni David, Luciano Nunziato Di Perna, Pablo E. Hernandez Garcia
  • Patent number: 9890857
    Abstract: A continuously variable transmission (CVT) includes an input member, an output member, a variator assembly having a primary variator pulley operable for receiving an input torque via the input member, a secondary variator pulley operable for transmitting an output torque via the output member, and an endless rotatable drive element in frictional engagement with the primary and secondary variator pulleys, first and second speed sensors operable for measuring a respective rotational speed of the primary and secondary variator pulleys, and a controller. The controller executes a method to detect gross slip of the endless rotatable drive element with respect to the primary and secondary variator pulleys using the measured rotational speeds, and in response to the detected gross slip, to request a reduction in the input torque by a calculated amount over a calibrated duration until a level of the detected gross slip reaches a calibrated slip level.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Bret M. Olson, Ronald W. VanDiepen, Paul G. Otanez
  • Patent number: 9894613
    Abstract: A passive entry-passive start portable device detection system. A portable device includes a transceiver. At least one vehicle-based transceiver broadcasts an interrogation signal. The transceiver of the portable device transmits a response signal in response to the interrogation signal. A controller determining at least a range of the portable device as a function of the time-of-flight of the interrogation and response signals. The controller controls a measurement duty cycle of the interrogation signal as a function of the determined range.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Kobi J. Scheim, Moshe Laifenfeld, Nadav Lavi
  • Patent number: 9889892
    Abstract: An attachment for connecting a chassis structure to a hollow beam of a body structure includes a tube nut, a bulkhead, and a bolt. The bulkhead has a cavity surface configured to conform to a cylindrical outer surface of the tube nut. The bulkhead is disposed within the hollow beam and is attached to at least two walls of the hollow beam and to the tube nut. A first portion of the cylindrical outer surface of the tube nut is disposed in close proximity to the cavity surface of the bulkhead. A bottom surface of the tube nut contacts an inner surface of a bottom wall of the hollow beam. The bolt extends from the chassis structure, through a hole formed in the bottom wall of the hollow beam, and into the tube nut to connect the chassis structure to the body structure. The attachment may include a second bulkhead.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Travis W. Walker, Darek G. Villeneuve, Terry A. Swartzell, Daniel C. Dokter
  • Patent number: 9889827
    Abstract: Methods and systems are provided for preventing vehicle roll. In one embodiment, a method includes: determining a first switch state; determining a second switch state; evaluating the first switch state and the second switch state to determine whether a condition of a mechanical linkage between a range selection device and a transmission has occurred; and selectively generating at least one of a control signal to control an electronic park brake and a notification message based on the determination.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: February 13, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David A. Provenza, Michael A. Van Camp, William A. Arnold
  • Patent number: 9891628
    Abstract: A system for generating mapping data includes a host vehicle and at least one sensor coupled to the host vehicle. The sensor is capable of detecting a traffic control device and capable of detecting motion of a vehicle. The system additionally includes non-transient data storage and a processor. The processor is in communication with the sensor and the data storage. The processor is configured to, in response to the at least one sensor detecting a traffic control device and detecting motion of a vehicle during a drive cycle, identify a lane of traffic associated with the vehicle, associate the lane of traffic with the traffic control device, and store the association of the lane of traffic with the traffic control device in the data storage for subsequent access by an automated driving system.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventor: James N. Nickolaou
  • Patent number: 9889878
    Abstract: A method of tuning a calibration table for an electric power steering system includes connecting the electric power steering system to an actuator machine, and communicating a control input from a vehicle simulator to the actuator machine. Input forces and steering angles are applied to the electric power steering system with the actuator machine, based on the control input. The electric power steering system is controlled with a steering controller, to apply a steering setting, i.e., and assistive torque. The steering controller uses the calibration table to define the steering setting, based on the applied input forces and steering angles. A steering torque in the electric power steering system generated in response to the applied steering setting is sensed, and communicated to the vehicle controller, thereby establishing a closed loop, feedback system. The calibration table may then be re-defined based on the sensed steering response for the applied input forces.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Theodore P. Konieczny, Scott P. Sherman, Aaron Ronald, Nathan M. Picot
  • Patent number: 9889835
    Abstract: A vehicle includes a brake system. The brake system includes a hydraulic brake line having a line pressure. The vehicle additionally includes a vacuum reservoir. The vacuum reservoir is selectively fluidly coupled to the hydraulic brake line. The vacuum reservoir is configured to, when fluidly coupled to the hydraulic brake line, reduce the line pressure during a drive cycle.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: David B. Antanaitis, Kevin D. Connor, Douglas N. Reed
  • Patent number: 9889782
    Abstract: An assist handle assembly includes a bracket, and a handle. The bracket includes a tubular portion concentric with and extending along a vertical axis. The handle includes a vertical portion and a horizontal portion. The vertical portion is partially disposed within and supported by the tubular portion, and is concentric with and extends along the vertical axis. The horizontal portion extends from an upper end of the vertical portion in a direction that is transverse to the vertical axis. The handle is rotatable about the vertical axis between a stowed position and an intermediate position, and is slideable axially along the vertical axis within the tubular portion of the bracket, between the intermediate position and a deployed position. A latching mechanism secures the handle relative to the bracket when in the deployed position.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventor: James G. Gobart
  • Patent number: 9889799
    Abstract: A key catcher for a storage unit including a trim panel, a compartment housing, and an openable compartment door having a length and an outer surface includes a sweeper and a biasing member. The sweeper is connected to the compartment housing and is configured to conform to the outer surface of the compartment door along the length of the compartment door. The biasing member is connected to the compartment housing and the sweeper and is configured to urge the sweeper toward the outer surface of the compartment door. The sweeper contacts the outer surface of the compartment door along the length of the compartment door when the compartment door is in an open position, a closed position, and any position between the open and closed positions such that a small item, such as a key, credit card, or change, cannot fall between the openable door and the trim panel.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: February 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Timothy A. Kiester, Douglas J. Amick, Kenton L. West
  • Patent number: 9889806
    Abstract: Disclosed herein is a bus bar comprising a bar manufactured from a material that has a density of less than or equal to 2.70 grams per cubic centimeter; where the bar comprises a plurality of holes for facilitating contact between the bus bar and a grounding attachment. Disclosed herein too is a method comprising affixing one or more grounding attachments to a bus bar, where the bus bar comprises a bar manufactured from a material that has a density of less than or equal to 2.70 grams per cubic centimeter; where the bar comprises a plurality of holes for facilitating contact between the bus bar and a grounding attachment; and affixing the bus bar to the frame of an automobile.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: February 13, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eric Roselli, Mark J. McGuire, Edward D. Moss, Daniel K. Davis