Patents Assigned to GM
  • Publication number: 20160363177
    Abstract: A transmission includes an input member, a hydraulic pump, a hydraulic circuit, a clutch assembly for transferring torque between the input member and an output member. A mechanically-driven hydraulic pump is rotatably coupled to the input member and is fluidly connected to the hydraulic circuit. The clutch assembly includes a friction clutch pack, a clutch-apply piston, a clutch-release piston and a coned-disc spring. The clutch-release piston is fluidly coupled to a first hydraulic chamber that is fluidly coupled to the hydraulic circuit. The clutch-apply piston is fluidly coupled to a second hydraulic chamber that is selectively fluidly coupled to the hydraulic circuit. A second spring urges the clutch-apply piston and the coned-disc spring urges the clutch-release piston. When the hydraulic pump is not rotating, the clutch assembly is activated by the coned-disc spring urging the clutch-release piston.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 15, 2016
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Farzad Samie, Tito R. Huffman, Chunhao J. Lee, Dongxu Li
  • Patent number: 9517727
    Abstract: A pocket forming trim panel for a vehicle door is provided. The pocket forming trim panel includes a panel portion and a pocket enclosure portion. The panel portion is configured to form a pocket opening. The pocket enclosure portion has a pocket floor portion and a pocket wall portion. The pocket enclosure portion is foldable with respect to the panel portion to complete the formation of a pocket on the door.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Adelchi R. Tiboni, Fernando A. Siqueira
  • Patent number: 9521397
    Abstract: A system includes a first camera defining a first camera coordinate system (C1) and configured to acquire a first image of a scene. A range sensor is spaced a first distance from the first camera and defines a range sensor coordinate system (R). A controller is operatively connected to the first camera and range sensor. The controller has a processor and a tangible, non-transitory memory device on which is recorded instructions for executing a method for obtaining a two-dimensional region of interest (u1*, v1*) in the first image, which is a two-dimensional intensity image. The first image is represented by a plurality of first points (u1, v1) in a first image plane. The controller is configured to acquire a range image of the scene with the range sensor. The range image is represented by a plurality of second points (u2, v2, d) in a second image plane.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Neil David McKay, James W. Wells, Roland J. Menassa
  • Patent number: 9517805
    Abstract: A notification system for an assembly process at an assembly plant includes a base unit of part of a product at the assembly plant and a first component coupled to the base unit at a station in the assembly plant to further define the product. A tag is coupled to one of the base unit and the first component. A reader is disposed downstream from the station at the assembly plant. The reader is configured to detect if the tag is coupled to one of the base unit and the first component when the product is scanned by the reader. Furthermore, a method of notifying a user during the assembly process at the assembly plant includes scanning the product, via the reader that is disposed downstream from the station at the assembly plant, to detect if the tag is coupled to one of the base unit and the first component.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventor: Tamara E Perry
  • Patent number: 9518618
    Abstract: A clutch assembly for a manual shift transmission includes a first shaft, which carries a first clutch disc, a second shaft that is coaxial to the first shaft. The second shaft carries an axially shiftable second clutch disc, a first ramp, of which at least one section describes a helical line that is coaxial to the shafts, and a first actuating body. The first actuating body is clamped between the first ramp and the second clutch disc and can be moved about a common axis of the shafts between an open position, in which the clutch discs are spaced from one another, and a closing position, in which the clutch discs contact one another in a frictionally joined manner.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: December 13, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christian Ruebsam, Mathias Remmler
  • Patent number: 9517804
    Abstract: A notification system for a vehicle assembly process at an assembly plant includes a base unit of a vehicle at the assembly plant and a first component coupled to the base unit at a station in the assembly plant to further define the vehicle. A tag is coupled to one of the base unit and the first component. A reader is disposed downstream from the station at the assembly plant. The reader is configured to detect if the tag is coupled to one of the base unit and the first component when the vehicle is scanned by the reader. Furthermore, a method of notifying a user during the vehicle assembly process at the assembly plant includes scanning the vehicle, via the reader that is disposed downstream from the station at the assembly plant, to detect if the tag is coupled to one of the base unit and the first component.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventor: Tamara E Perry
  • Patent number: 9517895
    Abstract: A system for turning over a vehicle frame defining openings and having a longitudinal center axis includes first and second robots each having an end effector. Each end effector has a pair of oppositely-positioned locator pins, at least one of which is selectively moveable toward the other. A controller is used to control the positioning of the frame via the robots and end effector by executing method instructions to cause the robots to align the locator pins of the end effectors with the openings of the frame, and to insert the aligned locator pins into the openings toward the center axis from outside of the vehicle frame. The robots lift the frame from a first conveyor, with weight of the vehicle frame born by the locator pins during the lift. The robots also rotate the frame about the center axis and lower the vehicle frame onto a second conveyor.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Bacalia, John M. Lux, Andrew J. Buckland, Theodore R. Burton, Douglas M. Linn
  • Patent number: 9517694
    Abstract: Vehicles, systems and a method for mitigating power hop in a vehicle are provided. The vehicle, for example, may include, but is not limited to a drivetrain, an electronic limited slip differential mechanically coupled to the drivetrain, and a controller communicatively coupled to the electronic limited slip differential, wherein the controller is configured to determine when the vehicle is experiencing a power hop event or when the vehicle may experience a future power hop event, and cause, when the vehicle is experiencing the power hop event or when the vehicle may experience the future power hop event, the electronic limited slip differential to apply torque differentiation pulses to the drivetrain.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: December 13, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jason J. Nolte, Dejvis Seitllari
  • Patent number: 9518498
    Abstract: A method is disclosed for regulating an exhaust after-treatment (AT) system having a diesel particulate filter (DPF) in fluid communication with a diesel engine. The method includes detecting operation of the diesel engine during which the engine generates a flow rate of particulate matter (PM) directed into the DPF. The method also includes detecting a flow rate of PM exiting the DPF in response to the flow rate of PM directed into the DPF. The method additionally includes tracking the detected flow rate alongside a predicted PM flow rate for monitoring and comparison thereof. The method also includes pausing in time the tracking of the predicted flow rate, if the detected flow rate has experienced a decline. Furthermore, the method includes resuming tracking the predicted flow rate when the detected flow rate returns to a value before the decline and using such value to regulate operation of the AT system.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Vincent J Tylutki, Igor Anilovich
  • Patent number: 9517706
    Abstract: A method for controlling a powertrain system includes deactivating a motor disconnect clutch during vehicle operation. Motor speed is decreased to a first inactive speed threshold and an inverter circuit is controlled to an inactive state while monitoring the motor speed. The inverter circuit is deactivated, and when the motor speed decreases to a second inactive speed threshold, the inverter circuit is pulse-activated to operate the electric machine to increase motor speed to the first inactive speed threshold, and then deactivated. The inverter circuit is activated to increase the motor speed to synchronize with speed of the driveline prior to activating the motor disconnect clutch.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Min-Joong Kim, Yo Chan Son, Norman K. Bucknor, R Travis Schwenke
  • Patent number: 9518316
    Abstract: A motor vehicle component, in particular body component, is disclosed in which a steel sheet has a corrosion protection coating arranged thereon. The steel sheet has a core with more than 90% of Martensite and an exterior zone with less than 90% Martensite. The corrosion protection coating is arranged on the exterior zone. A depth of this exterior zone amounts to at least 5 ?m and/or at least 0.5% of a wall thickness of the steel sheet.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: December 13, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Heike Kantereit
  • Patent number: 9518417
    Abstract: An obstacle detection system of a vehicle includes a first group of transceivers mounted on the first closure structure and a second group of transceivers mounted on the second closure structure. A controller is configured to, during the first mode, command the first group of transceivers to generate a first signal, command, upon receiving the first signal, the second group of transceivers to generate a second signal to be received by the first group of transceivers, and determine a presence or absence of an obstacle based on the second signal. The controller is configured to, during the second mode, command the first group of transceivers to generate a third signal such that the third signal is reflected off the second closure structure as a fourth signal to be received by the first group of transceivers, and determine the presence or absence of the obstacle based on the fourth signal.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 13, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Doru N. Serban, Khristopher S. Lee, Shawn G. Quinn
  • Patent number: 9521238
    Abstract: A mobile communication system and a method of establishing a wireless connection between a vehicle and at least one mobile device. The method includes: establishing a first short range wireless communication (SRWC) link between the vehicle and the mobile device; and using the first SRWC link to establish a second SRWC link between the vehicle and the mobile device, wherein the first and second SRWC links use different SRWC protocols.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Lakshmi V. Thanayankizil, Fan Bai, Wen Gu
  • Patent number: 9518644
    Abstract: A sliding camshaft for shifting to a selected one of a plurality of selectable cam lobes includes an inner shaft and an outer shaft. The inner shaft has an external spline. The outer shaft has an inner surface, an outer surface, a coating, and an outer portion. The inner surface is subjectable to wear and is configured with an internal spline for transferring torque from and sliding axially on the external spline of the inner shaft. The outer surface is subjectable to wear and loading and is configured with the plurality of selectable cam lobes. The coating on the inner surface is for wear resistance. The outer portion is case hardened for wear resistance of the outer surface and to create a compressive residual stress in the outer portion for load carrying capability.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Glenn E. Clever, Jason J. Wiedyk
  • Patent number: 9520600
    Abstract: A flow field plate for fuel cell applications includes a metal with a carbon layer disposed over at least a portion of the metal plate. The carbon layer is overcoated with a titanium oxide layer to form a titanium oxide/carbon bilayer. The titanium oxide/carbon bilayer may be activated to increase hydrophilicity. The flow field plate is included in a fuel cell with a minimal increase in contact resistance. Methods for forming the flow field plates are also provided.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Gayatri Vyas Dadheech, Michael J. Lukitsch
  • Patent number: 9517673
    Abstract: A vehicle and a suspension system for the vehicle are disclosed. The suspension system includes a first suspension corner assembly adapted to support a structure of the vehicle and a second suspension corner assembly adapted to support the structure. The first suspension corner assembly includes a first bell crank and the second suspension corner assembly includes a second bell crank. The suspension system also includes an actuator device attached to the first and second bell cranks to selectively change at least one of a first spring rate and a preload.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventor: Robert G. Izak
  • Patent number: 9520604
    Abstract: A device and method for ensuring proper fuel cell system warmup or shutdown during freeze conditions. A three-way valve is used in conjunction with a flow-controlling orifice to ensure that the orifice avoids ice blockage during frozen conditions. Dry, warm air is delivered as a slip stream under pressure to a cathode flowpath, where the construction of the orifice is such that it is structurally compliant to promote flexing in response to the pressurized slip stream, thereby helping to break up any small amount of ice that may have formed in or on the orifice.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: James K. Leary, Bruce J. Clingerman, Ronald J. Daum
  • Patent number: 9517802
    Abstract: An active aerodynamic feature for an underside of a vehicle includes a static panel and a dynamic panel. The static panel has a leading edge attached to a front fascia of the vehicle, and a trailing edge distal from the front fascia. The dynamic panel is movably attached to the trailing edge of the static panel. An actuator is configured to locate the dynamic panel in at least two fixed positions relative to the static panel. The fixed positions include a stowed position, which is substantially aligned with the trailing edge of the static panel, and a deployed position, which is at an offset angle relative to the trailing edge of the static panel and also to the stowed position.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas H. Froling, Timothy J. Herrick, Joseph Hanna, Titus H. Sgro, Changyoung Heo
  • Patent number: 9520753
    Abstract: A stator assembly includes a plurality of stator slots defining multiple slot layers. The assembly includes a plurality of hairpins each having a respective first leg positioned in one of the multiple slot layers and a respective second leg positioned in another of the multiple slot layers. Each hairpin is configured to allow a current to flow from the respective first leg to the respective second leg. The plurality of hairpins is divided into multiple hairpin layers. The hairpins form multiple winding sets, such as first, second, third and fourth winding sets. Each of the winding sets at least partially includes the hairpins from at least two of the multiple hairpin layers. The multiple slot layers may include six slot layers. The multiple hairpin layers may include six hairpin layers. Thus, at least one of the hairpin layers may be “shared” by two winding sets.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Khwaja M. Rahman, Edward L. Kaiser, Sinisa Jurkovic, Peter J. Savagian
  • Patent number: D774226
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: December 13, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: Steven M. McCabe, Garrick Zack