Patents Assigned to GM
  • Patent number: 8202191
    Abstract: A front wheel drive transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • Patent number: 8203818
    Abstract: An electronics system includes an electronic device, a power source and a temperature control switch. An actuator having a shape memory alloy is attached to the temperature control switch and moves the temperature control switch between an open position preventing a current flow between the power source and the electronic device, and a closed position permitting current flow between the power source and the electronic device. The shape memory alloy transforms shapes upon the ambient temperature falling below a low critical temperature or rising above a high critical temperature to move the temperature control switch into one of the closed position to permit current flow to the electronic device or the open position to prevent current flow to the electronics device respectively.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Nicholas W. Pinto, IV, Nancy L. Johnson, Paul W. Alexander
  • Patent number: 8201678
    Abstract: An automatic variable transmission with normally engaged disc clutches includes a main transmission pump connected to the transmission and at least one clutch located within the transmission. The clutch is in an engaged position when the main transmission pump is not operating. The clutch assembly includes a piston moveable between an engaged position and a disengaged position and at least one spring is operably connected to the piston. The piston is operable to move the at least one spring between the engaged position and a disengaged position. A plurality of clutch plates may transfer torque when the at least one spring is in the engaged position.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Gary L. Jones, Andrew L. Bartos
  • Patent number: 8202190
    Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, Scott H. Wittkopp, James M. Hart, Clinton E. Carey
  • Patent number: 8204656
    Abstract: A powertrain system includes a transmission device operative to transfer power between an input member and a plurality of torque machines and an output member. The torque machines are connected to an energy storage device and the transmission device is operative in one of a plurality of operating range states. A method for controlling the powertrain system includes monitoring available power from the energy storage device, determining system constraints, determining constraints on an output torque to the output member based upon the system constraints and the available power from the energy storage device, determining an operator torque request, determining an output torque command based upon the constraints on the output torque and the operator torque request, and determining preferred torque commands for each of the torque machines based upon the output torque command.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: June 19, 2012
    Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Anthony H. Heap, Jason J McConnell
  • Patent number: 8201850
    Abstract: A restraining belt comprising a webbing, and utilizing active material actuation for selectively modifying the tensile load strength of, stiffness of, or the tensioning applied to the webbing.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Alan L. Browne, Nancy L. Johnson
  • Patent number: 8202030
    Abstract: A fastener retainer is provided capable of retaining a fastener to a part prior to and during assembly. A first portion engages a fastener flange while leaving a fastener head exposed for assembly tool access. A second portion has flanges that engage the edges of the part.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Larry A. Walton, Baden Michael Powell, Gurdeep Singh, Mohammad A Khorrami
  • Patent number: 8204702
    Abstract: A method for estimating an operating life for an electrical energy storage system electrically connected to transmit power to a hybrid powertrain system includes monitoring temperature state-of-charge and electric current of the electrical energy storage system, calculating a battery life metric for a time interval based upon the temperature, the state-of-charge, and the electric current discharge, determining a total battery life metric therefrom and determining the remaining operating life of the electrical energy storage system.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: June 19, 2012
    Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Marc B. Center
  • Patent number: 8202195
    Abstract: The pinion gear assembly thus includes a first and a second pinion gear arranged with generally parallel axes of rotation. A first and a second washer, referred to herein as stationary washers, are provided. Each of the washers has two openings spaced to generally align with two predetermined, spaced mounting locations on the planet carrier member. The first and the second washers are positioned on opposing sides of the first and second pinion gears, with the axes of rotation of the first and second pinion gears generally centered at the respective spaced openings of the washers. Because the stationary washer spans the two pinion gears, which are secured to the carrier member, the stationary member is operatively connected at two locations to the carrier member, eliminating the need for anti-rotation features and corresponding carrier features.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Fredrick R. Poskie, Boris Burgman
  • Patent number: 8204277
    Abstract: A method is provided for detecting road lane markers in a vehicle road using an imaging device. Road input data is captured using the imaging device. Lighting normalization is applied to the road input data. The method detects the road lane markers in a few main orientations in the normalized input data. In each main orientation, the normalized input data is convolved with an oriented edge detection filter for generating an oriented edge-based filter response. The normalized input data is convolved with an oriented line detection filter for generating an oriented line-based filter response. Candidate lane markers are selected in response to the edge-based filter response and line-based filter response in each main orientation. A transformation technique is applied to the candidate lane markers for identifying the lane markings in each main orientation.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Wende Zhang, Varsha Sadekar
  • Patent number: 8202198
    Abstract: A vehicle includes a front-wheel drive (FWD) transmission having a case, a selectable one-way clutch (SOWC) indexed to the case, pressurized fluid, and a valve body assembly (VBA). The VBA has a piston in communication with the fluid, a return spring, and an actuator plate in continuous contact with or connected to each of the piston and a shift lever of the SOWC. Fluid moving the piston and plate in one direction locks the SOWC to enable a reverse mode, and the spring moves the piston and the plate in another direction to unlock the SOWC in a forward mode. A method prevents spin losses in the FWD transmission by positioning a two-mode SOWC within a case, positioning a VBA adjacently and externally to the case, and admitting pressurized fluid into the VBA to engage the SOWC only during a reverse operating mode.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Farzad Samie, Andrew L. Bartos, Chunhao J. Lee
  • Patent number: 8201878
    Abstract: A seat arrangement is provided that includes, but is not limited to a first and a second vehicle seat, which are disposed adjacent to one another in a seat row and of which the first vehicle seat has a backrest, which can be pivoted from a substantially upright usage position in the seat direction forward into a substantially horizontal non-usage position. The backrest, includes, but is not limited to at least one height-adjustable cushion portion which, in the non-usage position of the backrest, can be moved by means of a four-bar mechanism having four articulation axes from a lower armrest non-usage position into an upper first armrest position to form an armrest for the second vehicle seat. The articulation axes extend transversely to the seat direction and are inclined with respect to a horizontal transverse to the seat direction. In an alternative embodiment, the articulation axes extend in the seat direction in the non-usage position of the backrest.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Jürgen Maier, Jens Winter, Thomas Dill, Heinrich Hammann, Viktor Enns, Ulf Schäffling
  • Patent number: 8201596
    Abstract: A method of initially filling a new and previously unused fuel tank with a fuel including Volatile Organic Compounds includes providing a dispensing unit with an elongated flexible dispensing tube, inserting the dispensing tube through a fuel inlet of the fuel tank until the dispensing tube is disposed adjacent a bottom surface of the fuel tank, and introducing the fuel onto the bottom surface of the fuel tank in a smooth flow without spraying the fuel. Introduction of the fuel onto the bottom surface of the fuel tank in a smooth flow disposes any fuel vapors formed therein adjacent the bottom surface of the fuel tank to limit displacement of the fuel vapor into the atmosphere outside the fuel tank as the air in the fuel tank is exhausted in response to filling the fuel tank.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Sam R. Reddy
  • Patent number: 8203441
    Abstract: A display system for displaying an opening state of a motor vehicle door is provided that includes, but is not limited to a sensor system for detecting an opening state of the motor vehicle door. A display unit is connected to the sensor system for displaying the opening state of the motor vehicle door. A display element is redundantly connected redundantly to the sensor system is provided for displaying the opening state of the motor vehicle door. The probability of the display system correctly indicating the opening state of the motor vehicle door is thereby increased.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventor: Dirk Bolduan
  • Patent number: 8203236
    Abstract: Systems and methods are disclosed for a dual voltage-source inverter system. The systems and methods selectively couple a first voltage source and a second voltage source to an inverter via a controllable switch.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Gabriel Gallegos-Lopez, Milun Perisic, Silva Hiti, George John, Gregory S. Smith, Khiet Le, Duc Q. Phan
  • Patent number: 8204095
    Abstract: A method is provided that determines a delay and phase of an ultra-wide band signal in a communication system using a single correlator. A pulse search is executed that includes correlating a signal template with a UWB signal and sampling a preamble of the UWB signal at various time positions until a pulse in the signal template matches a pulse in the preamble. A chip boundary at which the pulse in the preamble is detected is identified using the signal template. A code search is executed for determining the correct phase of the received signal. The code search utilizes a plurality of phases having a same time-hopping sequence as the received signal. Each pulse of the phases is positioned at the determined chip boundary within each respective chip pulse position. Chips pulse positions of the phases are compared with the chip pulse positions of the UWB signal for determining a phase match.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Xiangming Kong, Mohiuddin Ahmed
  • Patent number: 8201869
    Abstract: A tailgate assembly for connection to a vehicle body includes a first panel portion configured for hinged connection to the vehicle body, as well as a second panel portion hinged to the first panel portion. The second panel portion is configured to be pivoted from a first position in which the second panel portion is generally parallel with the first panel portion to a second position in which the second panel portion is generally perpendicular to the first panel portion to reduce a first height of the tailgate. In some embodiments, the tailgate assembly further includes a third panel portion hinged to the second panel portion and configured to be pivoted between a stowed position in which the third panel portion extends generally parallel with the second panel portion and a use position in which the third panel portion extends generally perpendicular to the second panel portion.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: June 19, 2012
    Assignee: GM Global Tehnology Operations LLC
    Inventors: Albert H. Butlin, Jr., James G. Gobart
  • Patent number: 8201444
    Abstract: A powertrain includes an internal combustion engine and an aftertreatment system having an aftertreatment device utilizing a catalyst to convert NOx. A method for indicating a malfunctioning catalyst includes monitoring an actual NOx content exiting the aftertreatment system, monitoring factors affecting conversion efficiency of the aftertreatment device, determining a predicted threshold NOx content exiting the aftertreatment system for an exemplary malfunctioning catalyst based upon the factors affecting conversion efficiency, comparing the actual NOx content exiting the aftertreatment system to the predicted threshold NOx content exiting the aftertreatment system, and indicating a malfunctioning catalyst based upon the comparing.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Yue-Yun Wang, Ognyan N. Yanakiev, Charles E. Solbrig
  • Patent number: 8202194
    Abstract: A front wheel drive transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and a brake arranged within a transmission housing. Each of the clutches and the brake are located within specific areas defined by the planetary gear sets and the housing walls.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: June 19, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Clinton E. Carey, Scott H. Wittkopp, James M. Hart, Andrew W. Phillips
  • Patent number: 8204664
    Abstract: A vehicle includes a friction braking system and a powertrain system including a torque machine operative to react tractive torque input from a wheel of the vehicle. A method for controlling braking in a vehicle includes monitoring operation of the powertrain system, determining a driver intended total brake torque, determining a regenerative braking capacity based upon the operation of the powertrain system, determining a regenerative braking request based upon a time-rate change in the regenerative braking capacity, and determining a motor torque command for the torque machine based upon the regenerative braking request.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 19, 2012
    Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Monika A Minarcin, Jon K. Logan, Jian M Wang, Eric M. Rask