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

  • Patent number: 9630467
    Abstract: A leaf spring assembly comprises a leaf spring having an axially extending member, an axis, a key portion disposed at an end thereof, first and second parallel elongate members extending radially from the attachment ring along an axis and include inner facing surfaces opposing one another along the axis to define a receiving slot that is configured to receive the end of the leaf spring. The leaf spring is joined with the leaf spring eye and a key slot, formed adjacent to a terminal end of the receiving slot and comprising an enlarged slot portion defined by a first shoulder formed in an inner facing surface of an elongate member and configured to receive the key portion disposed at the end of the axially extending member.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: April 25, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Peter J. Soles, Jian Chen
  • Patent number: 9635271
    Abstract: A method of distinguishing between daytime lighting conditions and nighttime lighting conditions based on a captured image by a vision-based imaging device along a path of travel. An image is captured by a vision-based imaging device. A region of interest is selected in the captured image. A light intensity value is determined for each pixel within the region of interest. A cumulative histogram is generated based on light intensity values within the region of interest. The cumulative histogram including a plurality of category bins representing the light intensity values. Each category bin identifies an aggregate value of light intensity values assigned to each respective category bin. An aggregate value is compared within a predetermined category bin of the histogram to a first predetermined threshold. A determination is made whether the image is captured during the daytime lighting conditions as a function of the aggregate value within the predetermined category bin.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Wende Zhang, Jinsong Wang
  • Patent number: 9631105
    Abstract: A metal electrode assembly for fuel cell applications includes a cathode catalyst layer, an anode catalyst layer, and an ion-conducting membrane disposed between the cathode catalyst layer and the anode catalyst layer. The cathode catalyst layer or the anode layer each independently including a catalyst composition and a first polymer wherein at least one of the cathode catalyst layer or the anode layer include a first polymer and polyphenylene sulfide-containing structures. A method for making a fuel cell catalyst layer is also provided.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: James Mitchell, Timothy J. Fuller
  • Patent number: 9630575
    Abstract: A panel assembly includes a first panel defining a surface, and a boom attenuation panel. The boom attenuation panel includes a circumferential edge, and a central portion. The boom attenuation panel is attached to the surface of the first panel, along the circumferential edge of the boom attenuation panel. The central portion of the boom attenuation panel is spaced from the surface of the first panel a gap distance to form a gas chamber between the surface of the first panel and the central portion of the boom attenuation panel. The gas chamber contains a gas that is moveable within the gas chamber in response to wave-like motion of the first panel. Movement of the gas increases the effective acoustic mass of the boom attenuation panel, and damped the wave-like motion of the first panel, which operates to reduce noise generated from the wave-like motion of the first panel.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Qijun Zhang, Mark A. Stebbins, Christopher A. Stirlen, Michael E. McGuire, Andrew J Baines, John E Howard, Joseph A. Schudt
  • Patent number: 9630576
    Abstract: A panel assembly includes a first panel and noise attenuation panel that is attached to the first panel. The noise attenuation panel includes a central portion having a length and a width. The central portion of the noise attenuation panel is spaced from the surface of the first panel by a gap distance to form a gas chamber between the surface of the first panel and the central portion of the noise attenuation panel. The panel assembly includes at least one wall structure that is disposed within the gas chamber. The wall structure extends between the central portion of the noise attenuation panel and the surface of the first panel, and includes a pattern that defines a fluid flow path through the gas chamber, which includes an effective length that is greater than both the length and the width of the central portion of the noise attenuation panel.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark A. Stebbins, Qijun Zhang, Joseph A. Schudt, Andrew J. Baines, John E. Howard
  • Patent number: 9630601
    Abstract: A method that compensates for fluid pressure variations in a vehicle brake system so that the fluid pressure, brake torque and/or brake force at the wheel more accurately reflects that requested by the driver. In an exemplary embodiment, the method determines the braking intent of the driver, determines a current stage of the braking event (e.g., an apply stage, release stage, etc.), uses the braking event stage and the driver braking intent to select a pressure compensation, and uses the pressure compensation to generate compensated brake command signals for operating the vehicle brake system. This method is well suited for use with brake-by-wire systems, such as an electrohydraulic braking (EHB) system.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: April 25, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Jon K. Logan, Patrick J. Monsere, Margaret C. Richards, Jonathan King, Danny Y. Mui
  • Patent number: 9630815
    Abstract: A movement device is moved along an X axis and a Y axis by providing a sensor configured to measure angle of rotation of at least one of a first and a second kinematic link about a respective axis of rotation. A force is imparted on the first and second kinematic links such that an angular displacement of the first and second kinematic links about the respective axis of rotation is achieved. The angular displacement of the first and second kinematic links about the respective axis of rotation is determined. The movement device is moved along the X axis and/or the Y axis in response to the determination of the angle of rotation of the first and second kinematic links about the respective axis of rotation until first and second kinematic links are vertical.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 25, 2017
    Assignees: GM Global Technology Operations LLC, Universite Laval
    Inventors: Dalong Gao, Alexandre Lecours, Thierry Laliberte, Simon Foucault, Clement Gosselin, Boris Mayer-St-Onge, Roland J. Menassa, Pierre-Luc Belzile
  • Patent number: 9630461
    Abstract: A tire assembly includes a reservoir, a tire, and a pressure module. The pressure module includes a first valve, a second valve, and a control unit. The first valve selectively directs air from the reservoir to the interior cavity. The second valve directs air from the interior cavity of the tire to the atmosphere. The control unit is configured to selectively send a first control signal to the first valve such that the first valve cycles from a first position, at which air is prevented from flowing from the reservoir to the interior cavity, to a second position, at which air is allowed to flow from the reservoir to the interior cavity of the tire. The control unit is configured to selectively send another first control signal to the first valve such that the first valve cycles from the second position to the first position.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Liviu Serbu, Joseph K. Moore
  • Patent number: 9631252
    Abstract: A system and method of induction heat treating a gear includes a workstation. The workstation has a power source, an inductor coil, and a rotational mechanism. The gear is induction heat treated at a first portion of the gear and a second portion of the gear remains untreated by induction hardening. The gear has an inner surface. The inner surface includes the first portion and the second portion. The first portion has a first width. The second portion has a second width. The inductor coil includes at least one heating loop and at least one non-heating loop. The inductor coil is energized to a predetermined frequency to create an alternating magnetic field, where the alternating magnetic field developed in the heating loop induces an eddy current in the first portion of the gear.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Madhu Sudan Chatterjee, William Irwin Stuehr
  • Patent number: 9631567
    Abstract: A fuel control system for a vehicle includes a pressure compensation module that compensates an intake oxygen signal based on an intake pressure signal and that generates a compensated intake oxygen signal. A blow-by estimation module generates an estimated blow-by flow. A purge flow estimation module estimates the purge flow based on the compensated intake oxygen signal and the estimated blow-by flow. A fuel control estimation module reduces fueling to injectors of an engine of the vehicle based on the purge flow.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: B. Jerry Song, Martino Casetti, Scott Jeffrey, Louis A. Avallone
  • Patent number: 9631703
    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 may include clutches and brakes and are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew W. Phillips, Scott H. Wittkopp, Clinton E. Carey, James M. Hart
  • Patent number: 9634892
    Abstract: A communication system and methods of using the communication system is described. One method includes configuring a telematics unit in a vehicle with at least one access point name (APN). The steps of the method include: configuring the telematics unit with a default APN prior to a legal transfer of possession of the vehicle; and thereafter, activating the telematics unit for the provision of content data in connection with the legal transfer of possession of the vehicle, wherein the activating includes replacing the default APN of the telematics unit with a geographically-specific APN.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: April 25, 2017
    Assignee: General Motors LLC
    Inventor: Swapan Das
  • Patent number: 9631538
    Abstract: A system includes a filtering module that filters a first signal that indicates an amount of nitrogen oxides (NOx) in exhaust gas upstream from a catalyst, and that filters a second signal that indicates amounts of NOx and ammonia (NH3) in exhaust gas downstream from the catalyst. A slip determination module determines whether NH3 is present in exhaust gas downstream from the catalyst based on a frequency response of the first and second signals.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Kevin Andrew Gady, Amin Abboud
  • Patent number: 9632012
    Abstract: A drive module and a system for performing NVH testing on the drive module are provided. The system includes two pins extending from a platform and at least one qualified surface. A differential housing includes two surfaces, each having an opening formed therein. The differential housing further includes a clamping surface. The drive module is mounted to the platform by inserting the pins into the openings to align the drive module in a plane. A clamping pressure clamps the differential housing to the qualified surface to align the drive module in a second direction that is perpendicular to the plane such that the drive module pinion and axles are aligned with the energy sources of the system.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: April 25, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Glenn Meinhardt, Eric L. Hartzell, Brad A. Davis, Anthony W. Jablonski
  • Patent number: 9632666
    Abstract: A team-oriented heating, ventilation, and air-conditioning system, for use in support of operations of a vehicle. The system includes instructions that cause a processor to perform operations including communicating, to a human user, via a vehicle-user interface, a request to participate regularly, actively, and collaboratively as a member of a collaborative HVAC team, to include the system, in an ongoing team relationship of cooperation regarding operating the team-oriented HVAC system over time. The operations further include providing, to the user, a commitment communication advising the user that the system will be dedicated to participating regularly, actively, and collaboratively as a team member. The operations also include receiving, from the user, an agreement communication to participate as a member of the collaborative HVAC team. And the operations include forming, responsive to receiving the agreement communication, the collaborative HVAC team including the user and team-oriented HVAC system.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Claudia V. Goldman-Shenhar, Asaf Degani, Omer Tsimhoni, Christopher T. Thibodeau
  • Patent number: 9631872
    Abstract: A thermal management system having a first heating device, such as a rechargeable energy storage system (RESS), and a second heating device, such as an internal combustion engine (ICE), for a vehicle is provided. The system may allow waste heat within an ICE to be stored in a RESS, and may cool the RESS by depositing heat in the ICE. The RESS and the ICE are located in a first coolant circuit and a second coolant circuit, respectively. The system also includes a third coolant circuit interconnected with the first coolant circuit, and in thermal communication with the second coolant circuit via a first heat exchanger. The first and third coolant circuits are configured to circulate a first coolant, and the second coolant circuit is configured to circulate a second coolant. The RESS and the ICE are each configured to selectively operate as a heat source or a heat sink.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Paul S. Lombardo, Lawrence P. Ziehr, Bryan M. Styles, Mark D. Nemesh
  • Patent number: 9631585
    Abstract: An automated method for diagnosing an EGHR having a coolant path, an exhaust path, a heat exchanger, and a valve. The coolant path passes through the heat exchanger and the valve selectively directs the exhaust path through the heat exchanger. The method includes monitoring an inlet temperature and an outlet temperature of the coolant path, determining an instantaneous coolant power from the monitored inlet temperature and outlet temperature, and integrating the instantaneous coolant power to determine a total energy recovered by the coolant path. The method monitors an instantaneous exhaust power, determines an instantaneous available EGHR power from the instantaneous exhaust power, and integrates the instantaneous available EGHR power to determine a nominal EGHR energy. A differential is calculated between the nominal EGHR energy and the total energy recovered by the coolant path. If the calculated differential is greater than an allowable tolerance, an EGHR error signal is sent.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Paul S. Lombardo, Brian L. Spohn
  • Patent number: 9633565
    Abstract: A method for use in an active safety system installed on a host vehicle is provided. The method comprises acquiring, for each of a plurality of target objects in the path of the host vehicle, a value of a parameter that is representative of a likelihood that the host vehicle will collide with the target object. In an exemplary embodiment, the parameter that is utilized comprises a time-to-collision between the host vehicle and the target object. The method further comprises evaluating one or more of the acquired parameter values to determine if the host vehicle is likely to collide with one or more of the target objects, and triggering one or more collision avoidance measures when it is determined that the host vehicle is likely to collide with one or more of the target objects. An active safety system configured to perform the methodology is also provided.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: April 25, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Kevin P. Conrad
  • Patent number: 9634340
    Abstract: A water vapor transfer unit having fluid flow conduits which distribute wet or dry fluid throughout the water vapor transfer unit, which are created by forming apertures in each wet and dry plate so that when the plates are stacked, fluid flow inlet and outlet headers are integrated into the flow stack. These integrated headers negate the need for traditional wet and dry fluid inlet and outlet manifolds external to the water vapor transfer unit stack. Because the plates are stacked and sealed so that the fluid flows cannot co-mingle, the fluids are introduced directly into the stack, flow across the flow fields, and exit the stack without leakage or flow contamination. The integrated header design allows for sealing the stack on no more than a single plane defined by the stack or on no more than two parallel opposing planes and allows for accommodation of stack expansion and contraction.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: David A. Martinchek, Ian R. Jermy, Jeffrey M. Guzda
  • Patent number: 9633397
    Abstract: A system and method that allow non-human autonomous agents to participate in a social internet network. The system defines the autonomous agent by a standard email address, website address, or other such identification, that allows human participants of the social network to contact the non-human autonomous agent to perform some operation through the Internet. In one non-limiting example, the non-human autonomous agent is a vehicle that allows the vehicle owner, or user, to contact the vehicle through the social network to perform some operation, such as unlocking the vehicle doors, and allow authorized participants of the social network to see the vehicle as a participant of the network to gain information therefrom, such as the location of the vehicle.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Steven W. Holland
  • Patent number: 9633499
    Abstract: A method for detecting presence of one or more security token comprises a host device transmitting a wake-up message for receipt by the security token. Based on the wake-up message and a condition of the one or more security token, the security token either awakens or returns to an inactive state. The wake-up message comprises a security code that is unique to a host device and an instruction code that is configured to selectively instruct at least one of the one or more security tokens associated with the vehicle to awaken. A system for detecting presence of a user includes a host device configured for transmitting a wake-up message to be received by a security token. The wake-up message comprises a unique security code and an instruction code that is configured to instruct security tokens associated with the vehicle to awaken.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: April 25, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Aaron P. Creguer, David T. Proefke
  • Publication number: 20170108139
    Abstract: A circuit and a method for a digital inlet valve having a shutter moveable between a closed and an open position and actuated by a linear electromagnetic actuator including a movable needle located inside a coil winding connected to a power source by a first electronic switch. An electric current is supplied to the coil winding. A parameter indicative of a movement of the needle is monitored. The electric current supply is adjusted when the monitored parameter exceeds a predetermined value.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Stefano NIEDDU, Andrea MOLLAR, Tiziano SORRENTINO
  • Publication number: 20170108098
    Abstract: An articulated compliance mechanism for use with a support structure includes a carriage and a pair of parallel four-bar linkage arrangements. The arrangements collectively have a first set of links configured to rigidly connect to the support structure, a second set of links rotatably coupled to the carriage a distance from the first set of links, and a third set of links rotatably coupled to and spanning the distance. The compliance mechanism supports and provides the carriage, e.g., a rectangular shaped frame, with a stable equilibrium point using a gravitational restoring force, and provides the carriage with a passive translational degree of freedom along a horizontal axis in response to an input force from an operator. An additional compliance mechanism may be serially connected to provide a passive translational degree of freedom along a vertical axis. A system includes the compliance mechanism and support structure.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 20, 2017
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Université Laval
    Inventors: Muhammad E. Abdallah, Clément Gosselin, Thierry Laliberte, Simon Foucault, Pascal Labrecque, James W. Wells
  • Publication number: 20170107923
    Abstract: A method is disclosed for operating an internal combustion engine having a turbocharger and an exhaust gas recirculation pipe fluidly connecting an exhaust system to an air intake system upstream of a compressor of the turbocharger. A first value of a parameter indicative of the density of a mixture of fresh air and exhaust gas in the air intake system is determined. A flowing of exhaust gas through the exhaust gas recirculation pipe is interrupted if the first value is lower than a first reference value thereof.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Massimiliano MELIS, Francesco Concetto PESCE, Joaquin DE LA MORENA
  • Publication number: 20170107927
    Abstract: A method of operating a fuel injector of an internal combustion engine includes setting a value of a target fuel quantity to be injected by the fuel injector, initializing a value of a fuel quantity requested from the fuel injector to the value of the target fuel quantity, and correcting the value of the requested fuel quantity. A first learning cycle is performed to correct the value of the requested fuel quantity in which a difference between the target fuel quantity and the injected fuel quantity is calculated and added to the requested fuel quantity to provide a corrected value. The corrected value of the requested fuel quantity is used to determine a reference value of an energizing time that causes the fuel injector to inject a fuel quantity corresponding to the target fuel quantity. The fuel injector is operated based on the determined reference value of the energizing time.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Serena TORDIN, Valerio NUZZO, Paul Leonardo CLAUDE, Angelo CANCELLIERI
  • Publication number: 20170107928
    Abstract: A first test injection of a fuel injector is performed with a first test Energizing Time and the actual fuel quantity injected is measured to obtain a first point of a characteristic curve representing a relationship between the injector Energizing Time and the fuel quantity which is actually injected. A ratio between the actual fuel quantity injected and a nominal fuel quantity corresponding to the first test Energizing Time is calculated and used to determine a plurality of corrected Energizing Times for subsequent test injections. The subsequent test injections are performed using the corrected Energizing Times and the actual fuel quantity that has been injected during each one of the subsequent test injections is measured to obtain further points of the characteristic curve. The characteristic curve of the fuel injector is modeled based on the obtained further points and used to control the operation of the fuel injector.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Angelo CANCELLIERI, Paul Leonardo CLAUDE
  • Publication number: 20170106470
    Abstract: A method of laser welding a first component to a second component includes moving at least one of a laser beam and the components via a controller along a weld path at least a portion of which is a spiral having a first order of continuity thereby welding the first component to the second component. In one embodiment, the spiral is an Archimedean spiral.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joshua L. Solomon, Hui-Ping Wang, William P. Payne
  • Publication number: 20170107886
    Abstract: A method and apparatus for cleaning up a particulate filter of an internal combustion engine is provided. The internal combustion engine is operated to regenerate the particulate filter measuring. During the regeneration, a value of an engine speed is determined. A temperature of the particulate filter is controlled, if the measured value of the engine speed is smaller than or equal to a predetermined threshold value thereof. The particulate filter temperature is controlled by boosting the internal combustion engine and supplying the internal combustion engine with an amount of recirculated exhaust gases.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Cesare Maria MEANO, Isadora RICCI, Stefano PELLEGRINO
  • Publication number: 20170107917
    Abstract: An engine control system includes a cylinder control module that deactivates and reactivates a cylinder of an engine based on a driver torque request while an ignition system associated with the engine is in an on position. A firing order module selectively adjusts a firing order of the engine based on a time when the cylinder is reactivated.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 20, 2017
    Applicant: GM Global Technology Operations LLC
    Inventors: Allen B. RAYL, Daniel G. Brennan
  • Publication number: 20170106625
    Abstract: A panel assembly is formed by a plurality of bonds between two sheet materials in a face to face relationship to form a preform. The plurality of bonds define a closed perimeter region between the two sheet materials and an open perimeter region between the two sheet materials. The preform may be formed into a predefined shape. Pressurized fluid is applied through an inlet into the open perimeter region to expand the preform. The pressurized fluid expands the open perimeter region such that the two sheet materials expand in an opposing direction, thereby defining an expanded open perimeter region. The closed perimeter region between the two sheet materials remains vacant of the pressurized fluid such that the closed perimeter region is not expanded. The expanded open perimeter region is filled with a filler material for improving a performance characteristic of the panel assembly, e.g., strength, sound absorption, or stiffness.
    Type: Application
    Filed: August 31, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anil K. Sachdev, Raja K. Mishra, Jon T. Carter, Tyson W. Brown, Blair E. Carlson, David R. Sigler, Robert N. Saje, Matthew P. Simonin
  • Publication number: 20170107889
    Abstract: A cooling system for an internal combustion engine is disclosed. The engine has a cylinder block and a cylinder head. The cooling system includes a cylinder head cooling circuit and a cylinder block cooling circuit. The cylinder block cooling circuit includes cylinder block core prints channels on an upper portion thereof. The cylinder head cooling circuit includes a groove connected to an outlet of the cooling system and at least one cylinder block core print channel provided with at least one passage connecting the cylinder block cooling circuit with the groove.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michele TEMPESTA, Andrea PALMA, Fabio NUMIDI
  • Publication number: 20170107879
    Abstract: A method of managing a selective catalytic reduction system of a motor vehicle. During a first predetermined time period, a plurality of functionality checks of the sensor are performed for identifying if the sensor is able to provide a reliable measurement of the ammonia concentration. During the same first predetermined time period, a plurality of values of the ammonia concentration in the diesel exhaust fluid is measured by the sensor. A maintenance inducement strategy of the selective catalytic reduction system is activated if each of the values of the ammonia concentration measured during the first predetermined time period is smaller than a predetermined threshold value, and if each of the functionality checks of the sensor performed during the same first predetermined time period identifies that the sensor is able to provide a reliable measurement of the ammonia concentration.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mariano NOCERETO, Raffaello ARDANESE, Giovanni DAVID
  • Publication number: 20170106823
    Abstract: A bumper device for a motor vehicle is described. A cross member assembly includes a cross member running transverse to a traveling direction and a side element extending from an end of the cross member. A side member assembly has a first end configured to be fixed to a vehicle structure and a second end fixed to the cross member. A support member extends from the side member assembly towards an end of the side element opposite the cross member. The support member is configured to absorb and transfer an oblique load acting on the side element to the side member assembly, and to defect without substantial resistance to the longitudinal load acting on the cross member in the traveling direction.
    Type: Application
    Filed: October 14, 2015
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Wolfram LIEVEN, Michael WEIL
  • Publication number: 20170107338
    Abstract: Provided is a self-healing carbon fiber composite which may include a polymer matrix, a plurality of carbon fibers dispersed within the polymer matrix, and a self-healing polymer layer bonded onto at least a portion of the carbon fibers. Also provided herein are methods of manufacturing and repairing the carbon fiber composite.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Xiaosong Huang
  • Publication number: 20170107863
    Abstract: A roller tappet for a fuel unit pump of an internal combustion engine is provided with a roller tappet bore for inserting the roller tappet within the internal combustion engine. The roller tappet includes a roller tappet body having a body longitudinal axis for connecting the roller tappet to a reciprocating element of the fuel unit pump. A cam roller contacts a cam lobe of a rotatable shaft of the internal combustion engine. The cam roller is rotatably mounted to the roller tappet body around a cam roller rotation axis. The external surface of the roller tappet body is configured to allow tilting of the roller tappet within the roller tappet bore for aligning the roller tappet with respect to the cam lobe of the rotatable shaft.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Davide DI NUNNO, Mirco DE MARCO, Luca TRABUCCHI, Pierfrancesco DE GIOVANNI
  • Publication number: 20170107872
    Abstract: A fluid pump includes a housing defining a cavity. An end plate is disposed within the cavity and divides the cavity into a gear section and an end section. A gear set is disposed within the gear section and comprises at least one gear rotatable about an axis. The end plate is movable longitudinally along the axis for compressing the gear set. A channel is in fluidic communication with the end section for supplying a fluid to the end section to force the plate toward the gear set.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Sean M. McGowan, Bryan K. Pryor, John Byron Davis
  • Publication number: 20170106808
    Abstract: A camera unit for a vehicle includes a camera and a closure element, which are moveable by a drive unit between a first position, in which the closure element covers the field of vision of the camera and a second position, in which a region of the surroundings of the vehicle to be monitored lies in the field of vision of the camera. A first movement direction of the camera from the first position into the second position and a second movement direction of the closure element from the first position into the second position define an angle and a surface normal of the outer skin of the vehicle at the place of installation of the camera unit lies within the angle.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael FUCHS, Friedrich HEIN
  • Patent number: 9624809
    Abstract: A monitoring system for a single can oxidation catalyst (OC)/particulate filter (PF) member includes a controller including a first temperature sensor input configured to receive a first exhaust temperature upstream of an OC portion of the single can OC/PF member, a second temperature sensor input configured to receive a second exhaust temperature downstream of the first temperature. The controller is configured and disposed to calculate an exothermic capacity of the OC portion and determine washcoat deterioration of a PF portion of the single can OC/PF member based on the exothermic capacity of the OC portion.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Vincent J. Tylutki, David N. Belton, Janean E. Kowalkowski, Igor Anilovich
  • Patent number: 9623803
    Abstract: An end-gate that is moveable from a closed position to an access position to allow access to an interior or storage area of a vehicle, comprises an interior or storage area facing panel and an inwardly extending step feature, formed in the interior or storage area facing panel, defining a stepping surface that allows an operator to step up and through an interior or storage area opening and into the interior or storage area of the vehicle.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: April 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Marcel W. Martins
  • Patent number: 9623811
    Abstract: A deployable camera system for a vehicle includes a body defining a cavity therein, and a camera including a housing having an exterior surface. The camera is reversibly transitionable between a stowed position in which the camera is recessed into the cavity and the exterior surface is substantially flush with the body, and a deployed position wherein the camera protrudes from the cavity and the exterior surface is not substantially flush with the body. The deployable camera system includes a first shape memory alloy element transitionable between a first state and a second state in response to a first thermal activation signal.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: April 18, 2017
    Assignees: GM Global Technology Operations LLC, DYNALLOY, INC.
    Inventors: Paul W. Alexander, Debbie E Nachtegall, Nancy L. Johnson, Scott R. Webb, James Ryan Yates, James Holbrook Brown, Aragorn Zolno
  • Patent number: 9623813
    Abstract: Fit and finish methods using shape memory polymers (“SMP”) are disclosed herein. In an example of the fit and finish method, a first part and a second part are positioned adjacent to one another such that a shape memory polymer in a temporary shape is adjacent to a gap between the first part and the second part. The SMP is heated to a switching temperature of the SMP, which causes the SMP to initiate conversion to a permanent shape so that the SMP extends into the gap to close the gap between the first part and the second part.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 18, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Alan L. Browne, Nancy L. Johnson
  • Patent number: 9623817
    Abstract: Methods and systems are provided for controlling an electrical system of a vehicle. Sensors are used to obtain first data for a first path of calculations and second data for a second path of calculations. The first path comprises a first plurality of calculations of generating a value of a parameter pertaining to the electrical system, and the second path comprises a second plurality of calculations of monitoring the electrical system with respect to the first path. A processor is coupled to the plurality of sensors, and is configured to determine whether a data frozen flag is active, perform the first plurality of calculations of the first path using the first data if the first data flag is inactive, and perform the second plurality of calculations of the second path if the first data flag is active.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Brian A. Welchko, Silva Hiti, Abbas Raftari, Jeong J. Park, Hanne Buur, Wei D. Wang, Brian R. Medema, William R. Cawthorne, Jackie L. Cui
  • Patent number: 9623819
    Abstract: A method for controlling a lighting brightness of a lit motor vehicle instrument is described in which a viewing direction of a driver is ascertained. From the viewing direction of the driver, a direct field of vision and a peripheral field of vision are ascertained. The lighting brightness of the motor vehicle instrument is increased, if it lies in the direct field of vision of the driver. The method may be implemented in a motor vehicle.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Markus Frommann, Michael Schreiber
  • Patent number: 9623836
    Abstract: A number of variations may include a product comprising: a pretensioner that moves from a first position to a second position, several with a with guide loop assembly comprising: a guide loop; a pretensioner, wherein the pretensioner is attached to the guide loop; and wherein the pretensioner moves a guide loop from a first position to a second position upon deployment. A number of variations may also include a slot in the pretensioner body through which motion is communicated to a seatbelt anchor or guide loop to move it from a first position to a second position.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 18, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Peter P. Kujawa, George J. Strnad, Matt R. Gohlke, Scott D. Thomas
  • Patent number: 9623877
    Abstract: A system for use at a vehicle to estimate vehicle pitch angle and road grade angle, in real time and generally simultaneously. The system includes a sensor configured to measure vehicle pitch rate, a processor, and a computer-readable medium. The medium includes computer-executable instructions that, when executed by the processor, cause the processor to perform operations comprising estimating, using an observer and the vehicle pitch rate measured by the sensor, an estimated vehicle pitch rate. The operations further comprise estimating, using an observer and the measured vehicle pitch rate, the vehicle pitch angle, and estimating, based on the estimated vehicle pitch rate and the vehicle pitch angle estimated, the road grade angle.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: April 18, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Shih-ken Chen, Nikolai K. Moshchuk, Jin-Jae Chen, David M. Sidlosky
  • Patent number: 9624883
    Abstract: An apparatus for closed loop operation of a solenoid-activated actuator includes an external control module and a power source which are electrically and operatively coupled to an activation controller of the actuator. The external control module and the power source are located externally to the actuator. The apparatus further includes an activation controller which is integrated within the body of the actuator. The activation controller includes a control module and an actuator driver and is configured to communicate with the external control module and to receive electrical power from the power source. The apparatus additionally includes at least one sensor device which is integrated within the body of the actuator and is electrically and operatively coupled to the activation controller. The at least one sensor device is configured to measure one or more parameters during operation of the actuator and the measured parameters are provided as feedback to the activation controller.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chandra S. Namuduri, Thomas Wolfgang Nehl, Avoki M. Omekanda, Suresh Gopalakrishnan
  • Patent number: 9624846
    Abstract: In a vehicle having a manual transmission, various sensors such as pedal and gearshift position sensors and accelerometers provide data to a control module such as an engine control module. The control module includes a microprocessor which calculates derivatives, i.e., the rate of change (first derivative) or the rate of change of the rate of change (second derivative) of the data from the sensors. Based on these derivatives, the microprocessor classifies the current driving activity into one of two, three or more modes, for example, track, sport and touring. During a shift, from the data from the gearshift sensor, the microprocessor determines whether an upshift or downshift is imminent or in progress and decreases or increases the engine speed to achieve zero or negligible cross clutch speed differential upon clutch engagement, rapidly if in the first (track) mode, less rapidly in the second (sport) mode and less rapidly still in the third (touring) mode.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: April 18, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: William L. Cousins, Bradford W. Bur
  • Patent number: 9624847
    Abstract: A method for controlling operation of a multi-mode powertrain system includes periodically determining a power cost difference between a first power cost and a second power cost. This includes determining the first power cost associated with operating the powertrain system with the engine operating in a presently commanded engine state in response to an operator torque request and determining the second power cost associated with an expected powertrain operation with the engine operating in a non-commanded engine state in response to the operator torque request. The first power cost is compared with the second power cost, and successive iterations of the periodically determined power cost difference between the first power cost and the second power cost are integrated to determine an integrated power cost difference. A transition to the non-commanded engine state is commanded when the integrated power cost difference is greater than a threshold.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: April 18, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Kee Yong Kim, Anthony H. Heap, John Janczak, Samantha Victoria Lado, YaoYao Wei
  • Patent number: D784877
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Hwasup Lee
  • Patent number: D784886
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Brian J. Smith, Robin Krieg