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: 20170139530
    Abstract: Touch screen systems are disclosed that include a substrate, a plurality of touch zones, and a plurality of trace lines. Some of the touch screen systems are defined wherein a first trace line has a length, defined from a touch zone to a terminal, that is greater than a length of a second trace line, and wherein the first trace line has a width that is greater than a width of the second trace line. Others of the touch screen system are defined wherein each trace line is defined as having an irregular trace pattern. Further, yet others of the touch screen systems include an insulative coating disposed over the substrate, the touch zones and the plurality of trace lines, wherein the insulative coating has a refractive index that substantially matches a refractive index of a conductive material used to form the trace lines and touch zones.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: JAMES A. CARPENTER, THOMAS A. SEDER
  • Publication number: 20170138472
    Abstract: A continuously variable transmission (CVT) including a hydraulically-controllable variator is described. A method for controlling the CVT includes detecting a transient event causing a commanded change in a speed ratio of the variator and disabling feedback control of hydraulic pressure to the variator during the transient event. A target pressure that achieves the commanded change in the speed ratio of the variator is determined, and a pressure trajectory is determined based upon the target pressure. A feed-forward control of the hydraulic pressure to the variator is executed in response to the pressure trajectory during the transient event.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joseph W. Tatangelo, Zhen J. Zhang, Paul G. Otanez
  • Publication number: 20170137012
    Abstract: A powertrain includes a propulsion system having first and second torque sources, and first and second drive axles respectively connected to and independently driven by the first and second torque sources. A permissible range of torque contribution from the torque sources to the respective first and second drive axles is defined by a component torque window. The powertrain includes sensors for detecting a dynamic driving maneuver of a vehicle having the powertrain. A controller executes a method to adjust a size and/or orientation of a chassis torque window during the detected dynamic driving maneuver, determine an optimally efficient axle torque operating point that falls on a torque line within the component torque window in proximity to the chassis torque window, and command the torque contribution via transmission of torque control signals to the first and second torque sources to achieve the optimally efficient axle torque operating point.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xiaofeng Mao, Thomas A. Klingler, Eric E. Krueger, William R. Cawthorne, R. Travis Schwenke, Scott C. Mrdeza
  • Publication number: 20170136849
    Abstract: The present disclosure relates to a water tank cover for a motor vehicle, which has at least one air entry area for the supply of fresh air for a vehicle interior. The at least one air entry area is formed by a plurality of openings in the water tank cover, which exhibit a continuous edge that is elevated relative to an outer surface of the water tank cover.
    Type: Application
    Filed: November 10, 2016
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Fabian KEMPFER, Younes CHLYEH
  • Publication number: 20170136867
    Abstract: A powertrain includes a drive unit that can be modular and is adaptable to be used as an all-electric drive unit, an input power-split drive unit, or an input and compound power-split drive unit. The drive unit includes a first planetary gear set that has a sun gear member, a ring gear member, and a carrier member all rotatable about a first axis of rotation. The drive unit includes a first electric machine operable as a motor and having a rotor connected to rotate in unison with the sun gear member about the first axis of rotation. A first brake is selectively engageable to ground the ring gear member, a first clutch is operatively connected to the ring gear member, and an output member is connected to rotate in unison with the carrier member about the first axis of rotation. Multiple drive units can be used on a vehicle.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan G. Holmes, Joseph Ralph Littlefield
  • Publication number: 20170136870
    Abstract: A powertrain includes an output member, and first and second simple planetary gear sets. The planetary gear sets each have a first, a second, and a third member including a sun gear, carrier, and ring gear member. The drive unit includes a single electric machine operable as a motor and having a rotor connected to rotate in unison with and drive the sun gear member of the first planetary gear set. An interconnecting member connects the second member of the first planetary gear set to rotate in unison with the first member of the second planetary gear set. The third member of the first planetary gear set or the second member of the second planetary gear set is continuously grounded to the stationary member or operatively connected to be driven by an engine. The third member of the second planetary gear set is continuously operatively connected to the output member.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joseph Ralph Littlefield, Pete R. Garcia, Alan G. Holmes
  • Publication number: 20170138829
    Abstract: A method for determining elastic properties of a motor vehicle cable harness is disclosed. At least one elastic property of at least one test cable is measured as a function of a force acting on the test cable. At least one elastic characteristic of the test cable is estimated from the measurement. At least one elastic property of a cable harness including a plurality of cables is calculated based on the at least one determined elastic characteristic.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Meike SCHAUB
  • Publication number: 20170137065
    Abstract: A motor vehicle body includes a steel support structure surrounding a passenger compartment and a sidewall covering the support structure. The sidewall includes a front and a rear fender, at least one of which is realized in the form of a lightweight component of light metal, as well as a steel roof frame element that borders on both fenders.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Marcus LANGE
  • Publication number: 20170136697
    Abstract: Methods for manufacturing structures are provided. The methods include manufacturing a shell structure by additive manufacturing methods and sectioning panels with predetermined shapes from the shell structure. The panels are subsequently coupled to shell structure. Devices for performing various steps of the methods are also provided.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 18, 2017
    Applicant: GM Global Technology Operations LLC
    Inventors: Hamid G. Kia, Ningjian Huang, John P. Spicer, Jorge F. Arinez
  • Publication number: 20170138471
    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: Application
    Filed: November 18, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David H. Vu, Christopher Jay Weingartz, Craig J. Hawkins, Pratap A. Naick
  • Publication number: 20170137068
    Abstract: A motor vehicle is disclosed with a windshield, a hood and an air and water guiding arrangement that extends from the base of the windshield underneath the hood. A base plate of the air and water guiding arrangement features at least one air passage opening underneath the hood. A transverse wall, in which passages for air are recessed, rises from the base plate along a rear edge of the hood.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Fabian KEMPFER, Younes CHLYEH
  • Publication number: 20170138295
    Abstract: An engine assembly includes a cylinder head having an intake side and an exhaust side opposite the intake side. The cylinder head has an intake port, an exhaust port, and a combustion chamber in fluid communication with the intake port and the exhaust port. The engine assembly further includes a port fuel injector coupled to the cylinder head. The port fuel injector is disposed closer to the exhaust side than to the intake side of the cylinder head. Further, the port fuel injector is fluid communication with the intake port to allow fuel to be injected directly into the intake port. The engine assembly further includes a direct fuel injector coupled to the cylinder head. The direct injector is in fluid communication with the combustion chamber to allow fuel to be injected directly into the combustion chamber.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan W. Hayman, Edward J. Keating, Rodney E. Baker
  • Publication number: 20170138099
    Abstract: A door brake system for braking and locking a hinged door of a motor vehicle includes a stop and a base body, which is moved relative to the stop via a swiveling motion of the door. The base body is hinged and/or detachably fastened to the door. The stop is arranged on the door frame or on a body of the motor vehicle. The base body is guided relative to the stop in a positive manner to improve an effect and/or the kinematics of the door brake system.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Marten WITTORF, Uwe SCHMITZ
  • Publication number: 20170136698
    Abstract: Methods and devices for manufacturing paneled structures are provided. The methods include manufacturing a frame structure by additive manufacturing methods and scanning a surface of the frame structure to determine whether there is more than a nominal surface deviation at a location where a panel will be disposed. When there is more than a nominal surface deviation, the methods also include generating a panel to be disposed at the location of the frame structure, wherein the panel has an engagement surface that is complimentary to the surface deviation.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hamid G. Kia, Jorge F. Arinez, John P. Spicer, Ningjian Huang
  • Publication number: 20170138468
    Abstract: A fixed-gear transmission including a plurality of planetary gear sets and a plurality of clutches is described. A method for controlling the fixed-gear transmission includes commanding a first iteration of a skip-at-sync transmission shift and monitoring clutch slip of an oncoming holding clutch associated with the skip-at-sync transmission shift during execution of the shift, which includes monitoring synchronization of the on-coming holding clutch and a maximum clutch slip overshoot value. A progressive clutch pressure ramp rate for the oncoming holding clutch is adaptively controlled in response to the clutch synchronization of the on-coming hold clutch during execution of a subsequent iteration of the skip-at-sync transmission shift.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brian H. Fiore, Matthew Pruski, Bryan Williams, Jason Mallory
  • Publication number: 20170138254
    Abstract: An engine includes a crankshaft rotatable about a crank axis, and at least one balance shaft rotatable about a respective balance axis. The balance shaft rotates about the balance axis to balance the engine during rotation of the crankshaft about the crank axis. A torque transmitting mechanism is selectively moveable between an engaged position and a disengaged position. When the torque transmitting mechanism is disposed in the engaged position, the torque transmitting mechanism connects the crankshaft and the balance shaft in torque communication for rotating the balance shaft with the crankshaft to balance the engine, and when disposed in the disengaged position, the torque transmitting mechanism disconnects torque communication between the crankshaft and the balance shaft for not rotating the balance shaft with the crankshaft as the crankshaft rotates about the crank axis, to reduce spin losses of the engine.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrei Balaceanu, Dale E Murrish
  • Publication number: 20170138237
    Abstract: An exhaust system for a lean-burn internal combustion engine is described, and includes an injection system for injecting reductant into an exhaust gas feedstream upstream of a selective catalytic reduction device (SCR). A control method for controlling the injection system includes determining an upstream NOx gas concentration upstream of the SCR device, determining a measured downstream NOx gas concentration based upon a signal output from a sensor configured to monitor NOx gas concentration downstream of the SCR device, and determining an estimated downstream NOx gas concentration based upon an executable model. A first correlation between the upstream NOx gas concentration and the measured downstream NOx gas concentration is determined, and a second correlation between the upstream NOx gas concentration and the estimated downstream NOx gas concentration is determined. The reductant injection is controlled based upon the first and second correlations.
    Type: Application
    Filed: November 12, 2015
    Publication date: May 18, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Shifang Li, Min Sun, Kevin Andrew Gady, Raffaello Ardanese, Giuseppe Mazzara Bologna
  • Patent number: 9650043
    Abstract: An anticipatory speed-control system and method for generating a speed profile in real time by iteratively calculating proposed reduced speeds associated with an electronically identified target curve until the proposed speed is compliant with a lateral-acceleration-based comfort metric and a steering-angle-based safety metric and implementing the speed profile in accordance with a longitudinal comfort metric and providing a user with override options.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Jin-Woo Lee
  • Patent number: 9650978
    Abstract: A system according to the principles of the present invention includes a firing fraction module, an offset generation module, and a firing fraction module. The firing fraction module determines a firing fraction based on a driver torque request. The offset generation module randomly generates an offset. The firing control module adds the firing fraction to a running total each time that a crankshaft of an engine rotates through a predetermined angle, adds the offset to the running total, and executes a firing event in a cylinder of the engine when the running total is greater than or equal to a predetermined value.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Andrew W. Phillips
  • Patent number: 9650026
    Abstract: A rear cross traffic avoidance system includes an object detection device sensing remote objects rearward of a host vehicle. An object classifier distinguishes a remote dynamic object from remote static objects. The object classifier identifies a shape of the dynamic object. A tracking system tracks the remote dynamic object. A processor determines the remote object being on an intersecting path to the remote vehicle. The processor determines a warning threat assessment as a function of a time to intersect between the host vehicle and the remote dynamic object. The processor determines a brake threat assessment in response to an actuated warning of a collision. A brake actuation system actuates a braking operation for mitigating the collision.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Shuqing Zeng, Xiang Gong, Bakhtiar B. Litkouhi
  • Patent number: 9651212
    Abstract: The present disclosure provides a light assembly including a housing and a lens secured to the housing. The lens cooperates with the housing to define an interior region therebetween. The light assembly also includes a first light module disposed in the interior region. The first light module is selectively operable to emit light that is transmitted through the lens. The light assembly further includes a second light module selectively operable to emit light that is transmitted through the lens. At least a portion of the second light module is integrated into the lens.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrzej Wasilewski, Richard Tepper
  • Patent number: 9650016
    Abstract: Method for detecting seatbelt positioning in a vehicle having a seatbelt assembly and the image sensor and vehicle having the same. The seatbelt assembly includes belt webbing with a predefined webbing pattern. An image sensor is configured to take an image of at least a portion of the belt webbing. A controller is operatively connected to the image sensor and has a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for detecting positioning of the belt webbing. The controller is configured to determine a latch status of the seatbelt assembly as being latched or unlatched. If the latch status is latched, the controller is configured to take an image of at least a portion of the belt webbing with the image sensor. The method includes determining if the belt webbing is in a preferred position based at least partially on said image.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Margaret M. Andreen
  • Patent number: 9649931
    Abstract: A vehicle differential assembly is provided. The differential assembly including a differential case rotationally coupled to a differential housing. A differential gear set is rotationally coupled to the differential case. A ring gear rotationally coupled to the differential case. A disconnect member operably coupled between the ring gear and the differential case. The disconnect member having a torque transmitting member movable between a coupled and an uncoupled position, wherein the ring gear is rotationally coupled to the differential case when the torque transmitting member is in the coupled position.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: May 16, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, LLC
    Inventor: Shaun X. Zhao
  • Patent number: 9649627
    Abstract: Catalysts that are resistant to high-temperature sintering and methods for preparing such catalysts that are resistant to sintering at high temperatures are provided. The catalysts include a metal nanoparticle bound to a metal oxide support, where the metal nanoparticle and support are coated with a porous metal oxide coating layer. The catalyst is prepared by contacting a metal nanoparticle bound to a metal oxide support with a solution of metal salts, drying the solution of metal salts, and calcining the metal salts to generate a porous metal oxide coating on the metal nanoparticle and metal oxide support.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 16, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Xingcheng Xiao, Ryan J. Day, Gongshin Qi
  • Patent number: 9649895
    Abstract: A system and method for detecting a missing vehicle tire and notifying a user of the vehicle about a potential vehicle tire theft. The method carried out by the system involves detecting that a tire is missing from a vehicle using a vehicle tire pressure monitoring (TPM) system and thereafter providing a notification of the missing tire via a wireless communication sent from a telematics unit on the vehicle. The wireless communication can be sent automatically by the telematics unit in response to the detection. Identification numbers or other data reported by sensors used in the TPM system can be used to determine if a tire is missing.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 16, 2017
    Assignee: General Motors LLC
    Inventors: Catherine L. McCormick, Steven Swanson
  • Patent number: 9650003
    Abstract: Provided is a load-carrying or non-load carrying structural component for a vehicle having improved impact resistance, such as a gas tank protection shield, an underbody shield, a structural panel, an interior floor, a floor pan, a roof, an exterior surface, a storage area, a glove box, a console box, a trunk, a trunk floor, a truck bed, and combinations thereof. The component has a support structure with ridges, each spaced apart from one another at predetermined intervals, to form a corrugated surface capable of load-carrying. The ridges are longitudinally extending, raised ridges. The corrugated designs provide support structures that are impact resistant.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 16, 2017
    Assignees: GM Global Technology Operations LLC, Teijin Limited
    Inventors: John N. Owens, Mark A. Voss, Bhavesh Shah, Venkat Aitharaju, Chris James Tadeusz Wisniewski, Yutaka Yagi, Tsukasa Arai
  • Patent number: 9650989
    Abstract: An engine assembly is provided including a block defining a plurality of cylinders. A plurality of pistons are disposed in the plurality of cylinders and a crankshaft is drivingly attached to the plurality of pistons. A cover is mounted to an end of the block and supports a crankshaft seal around the crankshaft. The cover includes a dimpled pattern in a surface adjacent to the crankshaft seal.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Eric D. Staley, Alan W. Hayman, Thomas A. Spix
  • Patent number: 9652566
    Abstract: A method of simulating aluminum oxides defects in aluminum castings comprises determining the free surface area for a plurality of particles of aluminum in an aluminum melt, storing the free surface area for each particle of aluminum, tracking the free surface area change during mold filling, and calculating the total area of entrained or surface oxide films based on the free surface area change during mold filling. The method may further comprise a scalar variable method and a discrete particle method coupled together to simulate the aluminum oxide defects in aluminum castings.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations, LLC
    Inventor: Qigui Wang
  • Patent number: 9651145
    Abstract: A fixed-gear transmission including a plurality of planetary gear sets and a plurality of clutches is described. A method for controlling the fixed-gear transmission includes commanding a first iteration of a skip-at-sync transmission shift and monitoring clutch slip of an oncoming holding clutch associated with the skip-at-sync transmission shift during execution of the shift, which includes monitoring synchronization of the on-coming holding clutch and a maximum clutch slip overshoot value. A progressive clutch pressure ramp rate for the oncoming holding clutch is adaptively controlled in response to the clutch synchronization of the on-coming hold clutch during execution of a subsequent iteration of the skip-at-sync transmission shift.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian H. Fiore, Matthew Pruski, Bryan Williams, Jason Mallory
  • Patent number: 9653737
    Abstract: A method of depositing a conductive material is described. The method includes: providing a plate selected from anode plates, cathode plates, bipolar plates, or combinations thereof, wherein the plate includes gas flow channels; providing a diffusion media in contact with the gas flow channel side of the plate to form an assembly; introducing a gaseous precursor of the conductive material into the assembly using a chemical vapor infiltration process; infiltrating the gaseous precursor into the diffusion media and gas flow channels of the plates; and depositing a coating of the conductive material on the diffusion media, the gas flow channels of the plate, or both. An assembly having a CVI conductive coating and a fuel cell incorporating the diffusion media having the CVI conductive coating are also described.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Paul D. Nicotera, Chunxin Ji, Thomas A. Trabold
  • Patent number: 9652980
    Abstract: A method for detecting a clear path of travel for a vehicle utilizing analysis of a plurality of images generated by a camera device located upon the vehicle includes monitoring the images. The images are analyzed including determining a clear path upon which a potential road surface can be estimated from other portions of the images that do not indicate a potential road surface, and determining an image of a traffic infrastructure indication. The method further includes determining the content of the traffic infrastructure indication, modifying the clear path based upon the content of the traffic infrastructure indication, and utilizing the modified clear path in navigation of the vehicle.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: May 16, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wende Zhang, Sanjeev M. Naik
  • Patent number: 9653001
    Abstract: Automotive vehicle driving aid includes a computer program with a training module having instructions for providing audio/visual feedback during training route (TR) execution, and dynamically adjusting the TR to enable practice of a maneuver and avoidance of another maneuver. The program includes a driver aid module, practice module and/or test module. Driver aid module includes instructions for providing feedback during driver aid route (DAR) execution, dynamically adjusting the DAR to enable practice of a maneuver and avoidance of another maneuver, and providing a notification upon recognizing an object outside a vehicle during DAR execution. Practice module includes instructions for receiving a learning preference input and generating a practice route including the learning preference. Test module includes instructions for disabling feedback systems, assessing a driving maneuver during a test route (TR), and upon completion of TR, providing a driving report.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Akkas A. Mughal, Roddi L. Macinnes, Neeraj R. Gautama, Jarvis Chau, Shaun S. Marshall, Cem U. Saraydar, Norman J. Weigert
  • Patent number: 9651118
    Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of interconnecting members and six torque transmitting mechanisms. The torque transmitting mechanisms include clutches and brakes that are actuatable in combinations of three to establish at least ten forward gear ratios and at least one reverse gear ratio.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations, LLC
    Inventors: James M. Hart, Elizabeth I. Wooden, Scott H. Wittkopp
  • Patent number: 9651132
    Abstract: A cast aluminum differential housing for a motor vehicle powertrain having cast iron inserts. The housing is cast of light weight aluminum which weighs approximately one-third that of iron which has formerly been used to fabricate such housings. At locations of significant loads and wear, such as the mountings for the stub shaft associated with the two idler bevel gears, iron inserts are cast into the housing. The housing thus weighs significantly less than a comparable iron differential housing but since the two significant wear and load bearing regions include cast iron inserts, the aluminum differential housing of the present invention has the ruggedness, durability and service life of the much heavier iron housing.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations, LLC
    Inventors: Mahesh Annasaheb Mummigatti, Sachin Chandrakant Pagare
  • Patent number: 9650981
    Abstract: A vehicle system includes an upstream oxygen monitoring module that monitors an upstream exhaust oxygen sensor and determines an upstream transition period based on a time at which the upstream exhaust oxygen sensor detects a rich-to-lean fueling transition. A delay determining module determines a delay period associated with the upstream exhaust oxygen sensor's detection of the fueling transition. An upstream correcting module determines a corrected upstream transition period based on the upstream transition period and the delay period. A downstream oxygen monitoring module monitors a downstream exhaust oxygen sensor and determines a downstream transition period based on the response of the downstream exhaust oxygen sensor to the fueling transition. An oxygen storage capacity (OSC) determining module determines an OSC period based on the corrected upstream transition period and the downstream transition period.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas J. Large, Grant J. Ovist, Sharianne Ziola, Timothy Wendling, J. Michael Gwidt
  • Patent number: 9650982
    Abstract: A fuel control system of a vehicle includes a first storing module that, in response to receipt of a vehicle shutdown command, stores a first temperature of liquefied petroleum gas (LPG) within an LPG fuel rail of an engine and a first pressure of LPG within the LPG fuel rail. A second storing module, in response to receipt of a vehicle startup command, stores a second temperature of LPG within the LPG fuel rail and a second pressure of LPG within the LPG fuel rail. A butane module determines an amount of butane in the LPG based on the first temperature, the first pressure, the second temperature, and the second pressure. A fuel control module controls LPG fueling of the engine based on the amount of butane in the LPG.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Xiaoyue Sherry Fang, Karl H. Kozole
  • Patent number: 9650990
    Abstract: A seal retention assembly is disclosed. The seal retention assembly includes a cover defining an aperture along a longitudinal axis. The seal retention assembly further includes a seal coupled to the cover adjacent to the aperture. The seal retention assembly also includes a retention device cooperating with the cover and the seal to secure the seal in engagement with the cover. In addition, a seal is disclosed. The seal includes a body portion, with the body portion including a first side and a second side opposing each other along a longitudinal axis. The body portion also includes an outer periphery disposed between the first and second sides and faces away from the longitudinal axis. The seal further includes a first retainer extending from at least one of the outer periphery and the first and second sides for securing the body portion to a cover.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Leonard Barry Griffiths, David R. Staley
  • Patent number: 9651101
    Abstract: A method of controlling a selectable one way clutch operable to selectively couple a shaft to a housing of a transmission includes determining if an electric motor is currently operating, and if the selectable one way clutch is currently engaged to couple the shaft to the housing. It is further determined whether or not wheel torque of at least one wheel is currently being actively managed by at least one vehicle control system. When the electric motor is operating with the selectable one way clutch engaged, and wheel torque of at least one wheel of the hybrid vehicle is currently being actively managed by at least one vehicle control system, then selectable one way clutch is disengaged to release the shaft from the housing and allow rotation of the shaft relative to the housing.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Goro Tamai, Anthony J. Corsetti
  • Patent number: 9651105
    Abstract: A number of variations may include a brake rotor having a surface oxide layer and methods of making the same.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael L. Holly, Douglas N. Reed
  • Publication number: 20170130837
    Abstract: A powertrain system including a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining, employing a first controller, a first desired speed ratio in response to an output torque request. The first desired speed ratio is evaluated to determine if it is valid and achievable. A second controller is employed to determine a second desired speed ratio, and a final desired speed ratio is determined based upon the first and second desired speed ratios. The final desired speed ratio is evaluated, and the CVT is controlled based upon the final desired speed ratio.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Artin Farahani
  • Publication number: 20170130834
    Abstract: A powertrain system including an internal combustion engine rotatably coupled to a variator of a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining an actual speed ratio, a desired speed ratio and a commanded speed ratio. A total speed ratio change rate is determined based upon the actual speed ratio, the desired speed ratio and the commanded speed ratio, and a commanded speed ratio trajectory is determined based upon the desired speed ratio and the commanded speed ratio. A ratio change coefficient and a force ratio factor are determined based upon the commanded speed ratio trajectory, and a shift force is determined based upon the total speed ratio change rate and the ratio change coefficient. A primary pulley force and a secondary pulley force for the CVT are controlled based upon the shift force and the force ratio factor.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhen J. Zhang, Paul G. Otanez, Shushan Bai
  • Publication number: 20170129560
    Abstract: A method for assembling an instrument panel to a vehicle chassis is disclosed, as well as a device and a centering bolt used therefor. In particular, a y-z-centering bolt and a z-centering bolt are aligned relative to the individual vehicle center by a device for use as a y-z-positioning gauge and a device for use as a z-positioning gauge and connected with struts. The struts are connected to the vehicle chassis. The fixture device of an instrument panel is aligned and connected with the strut by the y-z-centering bolt and the z-centering bolt. Subsequently, the instrument panel is connected with the fixture device.
    Type: Application
    Filed: August 11, 2016
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Michael-Albert RATTLER
  • Publication number: 20170130835
    Abstract: A powertrain system including an internal combustion engine rotatably coupled to a variator of a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining a first speed ratio change rate based upon a desired speed ratio and a commanded speed ratio, and determining a commanded speed ratio trajectory based upon the first speed ratio change rate, an actual speed ratio and a commanded speed ratio. A ratio change coefficient and a force ratio factor are determined based upon the commanded speed ratio trajectory. A shift force is determined based upon the ratio change coefficient and a total speed ratio change rate. A primary pulley pressure and a secondary pulley pressure for the CVT are controlled based upon the shift force and the force ratio factor.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Zhen J. Zhang, Paul G. Otanez, Shushan Bai
  • Publication number: 20170129335
    Abstract: Systems and methods are provided for controlling a vehicle based on a physiological trait. The method includes: receiving physiological data from one or more physiological sensors; processing the received physiological data, by a processor, to determine one or more physiological conditions; and based on the determined physiological condition, outputting one or more control signals to a vehicle system to control an operation of the vehicle system.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: PENG LU, XIAOSONG HUANG, JOSEPH F. SZCZERBA, TRICIA E. NEIIENDAM
  • Publication number: 20170130836
    Abstract: A powertrain system including a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining a target clamping pressure and an actual clamping pressure, and determining a proportional correction term and an integral correction term based upon the target clamping pressure and the actual clamping pressure. An adapt correction term is determined based upon the target clamping pressure and a temperature of the CVT. A commanded clamping pressure for controlling the CVT is determined based upon the proportional correction term, the integral correction term and the adapt correction term. A pressure command is employed to drive an actuator of a moveable sheave of a pulley of a variator of the CVT based upon the commanded clamping pressure.
    Type: Application
    Filed: November 9, 2015
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joseph William Tatangelo, Paul G. Otanez, Zhen J. Zhang
  • Publication number: 20170129212
    Abstract: A workpiece of sheet steel has a surface, which locally includes regions that are hardened by alloying in an additional element, as well as unhardened regions. At least one hardened region extends between a crack starting zone and an unhardened region.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Hartmut BAUMGART, Ronald SANDERS
  • Publication number: 20170133153
    Abstract: A workpiece made of plate is subjected to a treatment which locally modifies its magnetic permeability. Subsequently, the magnetic permeability of the workpiece is examined locally resolved by a probe in order to find at least one surface region which is suitable for intended processing, and the processing is performed locally limited to the selected region.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ronald SANDERS, Hartmut BAUMGART
  • Publication number: 20170129435
    Abstract: A vehicle communication system for a vehicle is described with at least one crash sensor configured to recognize a crash of the vehicle. A passenger recognition system recognizes the number and/or location of passengers in the vehicle. A controller is connected to the at least one crash sensor, the passenger recognition system and a transmitter and configured to generate crash information using crash sensor readout. The controller is further configured to generate a data set including the crash information and number and/or location of passengers in the vehicle from the passenger recognition system. A transmitter is configured to send the data set.
    Type: Application
    Filed: November 10, 2016
    Publication date: May 11, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Stephane VITET
  • Patent number: D786743
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian J. Smith, Robin Krieg
  • Patent number: D786750
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: May 16, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Hwasup Lee