Patents Assigned to GM Global Technology Operation LLC
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Patent number: 9746073Abstract: A system for a vehicle includes a desired pressure module, a valve actuation module, a filter module, and a capacity detection module. The desired pressure module selectively generates an increase in a desired pressure of hydraulic fluid for a clutch of an automatic transmission. The valve actuation module actuates a solenoid valve based on the desired pressure. The solenoid valve supplies hydraulic fluid to a regulator valve, and the regulator valve supplies hydraulic fluid to the clutch. The filter module filters an acceleration of a shaft of the automatic transmission to generate a filtered acceleration. The capacity detection module indicates whether the clutch reached torque carrying capacity based on the filtered acceleration.Type: GrantFiled: January 25, 2011Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventors: Matthew D. Whitton, Timothy R. Stockdale, Amanda P. Igel, Nathaniel E. Wilke
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Patent number: 9746134Abstract: A method of storing and using natural gas (NG) in a vehicle includes selecting a vehicle having an NG tank for fueling an engine of the vehicle. The tank service pressure rating is 3600 psi (pounds per square inch) and an NG adsorbent is in the tank. A first quantity of NG is transferred into the tank from a first source having a first source pressure less than 725 psi. The adsorbent adsorbs a portion of the NG. After transferring the first quantity of NG, the engine is operated until NG is desorbed and consumed by the engine. NG is transferred into the tank from a second source to fill the tank to a second tank pressure of about 3600 psi. The adsorbent adsorbs some of the NG. After transferring the second quantity of the NG, the engine is operated until NG is desorbed and consumed by the engine.Type: GrantFiled: March 24, 2014Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventors: Anne M. Dailly, Arianna T. Morales, Mahmoud H. Abd Elhamid, Mei Cai
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Patent number: 9746044Abstract: A resettable sensor assembly includes an elongate valve body having a longitudinal axis and defining a cavity therein. A housing is at least partially disposed within a cooperates with the elongate valve body and includes at least one electrical contact. A support member disposed within the elongate valve body cavity cooperates with a plate to communicate with the at least one electrical contact. An actuator element configured for translating the plate along the axis between a first position in which the plate contacts the at least one electrical contact and a second position in which the plate is spaced apart from the at least one electrical contact. The element is formed from a shape memory alloy that is transitionable between an austenite crystallographic phase and a martensite crystallographic phase in response to a thermal activation signal to thereby translate the plate between the first position and the second position.Type: GrantFiled: April 15, 2016Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventors: Richard J. Skurkis, Paul W. Alexander, Nancy L. Johnson, Jason F. Laws, Nicholas W. Pinto, IV
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Patent number: 9737956Abstract: Resistance spot welding of a thin-gauge steel workpiece to another steel workpiece is achieved through the combined use of specific spot welding electrodes and a pulsating welding current. Each of the spot welding electrodes has a weld face that is smaller in diameter than a typical steel spot welding electrode. And the pulsating welding current that is used in conjunction with the smaller-sized spot welding electrodes includes at least two stages of electrical current pulses.Type: GrantFiled: June 14, 2013Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: David Yang, Michael J. Karagoulis, David R. Sigler
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Patent number: 9742014Abstract: A membrane humidifier assembly for a membrane humidifier for a fuel cell system and a method for making the same is disclosed, the method comprising the steps of providing a material for forming a diffusion medium; forming a plurality of channels in the material with one of a channel-forming roller, a means for etching the material, and a press for forming the diffusion medium; and providing a pair of membranes, wherein the diffusion medium is disposed between the pair of membranes.Type: GrantFiled: April 14, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Jeffrey M. Guzda, David A. Martinchek
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Patent number: 9740993Abstract: A method of detecting anomalies in the service repairs data of equipment. A failure mode-symptom correlation matrix correlates failure modes to symptoms. Diagnostic trouble codes are collected for an actual repair for the equipment. The diagnostic trouble codes are provided to a diagnostic reasoner for identifying failure modes. Diagnostic assessment is applied by the diagnostic reasoner for determining the recommended repairs to perform on the equipment in response to identifying the failure modes. Each of the recommended repairs is compared with the actual repair used to repair the equipment. A mismatch is identified in response to any recommended repair not matching the actual repair. Reports are generated for displaying all of the identified mismatches. The reports are analyzed for determining repair codes having an increase in a number of anomalies. Service centers are alerted of a correct repair for the identified failure mode.Type: GrantFiled: December 4, 2009Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Satnam Singh, Pulak Bandyopadhyay, Calvin E. Wolf
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Patent number: 9740178Abstract: A fault tolerant controller system includes a first controller and a second controller. One of the first and second controllers designated as a primary controller for generating control signals intended to control actuation devices on a vehicle under non-fault operating conditions, and the other of the first and second controllers designated as a secondary controller generating control signals intended to control actuation devices on the vehicle. The actuation devices are responsive only to the designated primary controller. An error is detected in the primary controller and a message is transmitted from the faulty controller to the non-faulty controller identifying the error. The non-faulty controller is subsequently designated as the primary controller. The control signals including an identifier that identifies the non-faulty controller as the designated primary controller. In response to detecting the error, the faulty controller is reset to operate in a safe operating mode as the secondary controller.Type: GrantFiled: March 14, 2013Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Rami I. Debouk, Stephen M. Baker, Jeffrey Joyce
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Patent number: 9742028Abstract: An example of a flexible membrane includes a porous membrane and a solid electrolyte coating formed on at least a portion of a surface of the porous membrane, in pores of the porous membrane, or both on the surface and in the pores. The solid electrolyte coating includes i) a polymer chain or ii) an inorganic ionically conductive material. The polymer chain or the inorganic material includes a group to interact or react with a polysulfide through covalent bonding or supramolecular interaction.Type: GrantFiled: August 4, 2014Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Weidong Zhou, Xingcheng Xiao, Mei Cai
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Patent number: 9739345Abstract: A transmission includes a transmission housing, five co-planar gear sets, a transmission input shaft, an output member, a first and second countershaft, and five synchronizer assemblies. The five synchronizer assemblies are selectively engaged to establish one of at least seven forward speed ratios and one reverse speed ratio between the transmission input shaft member and the output member.Type: GrantFiled: March 17, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations, LLCInventors: Yogesh Kumar Dewangan, Bhaskara Ch, Raphael Demelezi, Ganesan Sp
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Patent number: 9738285Abstract: A method of controlling a transmission includes determining if an internal combustion engine of the vehicle is currently operating with active fuel management, or if the internal combustion engine is currently operating without active fuel management. The vehicle controller further determines if a possible engine torque is equal to, greater than, or less than a required engine torque. The transmission is upshifted when the internal combustion engine is currently operating with active fuel management, and when the possible engine torque is equal to or greater than the required engine torque. When the possible engine torque is less than the required engine torque, active fuel management is exited so that the internal combustion engine is currently operating without active fuel management. When the internal combustion engine is currently operating without active fuel management, the vehicle controller upshifts the transmission from the current gear ratio to the higher gear ratio.Type: GrantFiled: October 12, 2016Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Mark A. Schang, Jeffrey M. Kaiser, Jeremy V. Horgan
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Patent number: 9739190Abstract: 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: GrantFiled: November 12, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Shifang Li, Min Sun, Kevin Andrew Gady, Raffaello Ardanese, Giuseppe Mazzara Bologna
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Patent number: 9742177Abstract: A seal assembly includes a circular resilient grommet-type seal having one or more through axial openings equal in number to the wires which pass through the seal and a rigid wire channel or guide which is received within a complementary pocket aligned with the seal between the seal and a reaction surface. The rigid wire channel or guide is retained in the pocket and carries any force exerted on the seal by pressure within the device to the aligned reaction surface. A method of installation includes the steps of mounting an electrical device within a component, routing the electrical wires leading from the device through an opening, routing the wires through corresponding openings in a grommet-type seal, pressing the seal into the opening, routing the wires through passageways in the rigid wire channel or guide and installing the guide in a complementary pocket which is aligned with the seal at one end and includes a reaction surface at the other end.Type: GrantFiled: April 1, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations, LLCInventors: Addison T. Solak, Edward J. Billings
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Patent number: 9739180Abstract: A camshaft-drive tensioner system is disclosed for an internal combustion engine having a camshaft-drive element. The camshaft-drive tensioner system includes a tensioner configured to be energized by a pressurized fluid in order to apply a force to the camshaft-drive element. The camshaft-drive tensioner system also includes a fluid pump configured to supply the pressurized fluid. The camshaft-drive tensioner system additionally includes a controller configured to regulate either volume or pressure of the fluid supplied to the tensioner by the fluid pump to thereby selectively vary the force applied to the camshaft-drive element. An internal combustion engine having such a camshaft-drive tensioner system and a method of selectively varying a force applied to the camshaft-drive element are also disclosed.Type: GrantFiled: August 7, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventor: Thomas A. Spix
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Patent number: 9739355Abstract: A dual clutch transmission includes a pair of concentric clutches which selectively drive a pair of concentric drive shafts, pairs of gears in constant mesh, a first portion of which are associated with the first drive shaft and a first, parallel countershaft and a second portion of which are associated with the second drive shaft and a second, parallel countershaft. Synchronizer clutches disposed adjacent the gears on the countershafts selectively connect the gears to the countershafts. Both countershafts drive a single output shaft through transfer gears. The output shaft is coupled to a drive (input) pulley of a continuously variable final drive assembly which receives a chain which drives a driven (output) pulley which is coupled to and drives the cage of a differential assembly. A pair of axles are driven by the side gears of the differential and, in turn, drive the vehicle wheel.Type: GrantFiled: May 29, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations, LLCInventors: Tushar P. Khanzode, Sachin Chandrakant Pagare
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Patent number: 9738328Abstract: A splitter system for a vehicle includes a splitter body having a first splitter body side-section and a second splitter body side-section. The vehicle includes a vehicle body arranged along a longitudinal body axis and having a first vehicle body end configured to face incident ambient airflow. The splitter body is mounted at the first vehicle body end to generate an aerodynamic downforce thereon when the vehicle is in motion. A mechanism is configured to selectively and individually shift each of the first splitter body side-section and the second splitter body side-section relative to the first vehicle body end. The shifting of the splitter body side-sections by the mechanism in turn adjusts the aerodynamic downforce generated by the splitter body side-sections on the first vehicle body end.Type: GrantFiled: December 4, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Jason D. Fahland, Joshua R. Auden, David Dominguez
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Patent number: 9739339Abstract: An isolating torque coupler includes a drive element assembled between annular cage elements of a driven element. The cage elements each include a plurality of aligned voids. The drive element includes a hub portion and a plurality of lobes with each of the lobes including a first edge and a second edge. Openings in the drive element are aligned with the voids of the cage elements to accommodate isolator springs. Each isolator spring is a helical coil compression spring having squared ends. A first edge of each of the lobes of the drive element is parallel to a second end of the corresponding one of the voids of the driven element. A second edge of each of the lobes of the drive element is non-parallel to a first end of the corresponding one of the voids of the driven element.Type: GrantFiled: January 7, 2015Date of Patent: August 22, 2017Assignee: GM Global Technology Operations LLCInventors: Victor M. Roses, Peter W. Mack
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Patent number: D795747Type: GrantFiled: September 9, 2015Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventor: Jess R. Bailie
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Patent number: D795759Type: GrantFiled: October 26, 2015Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventors: Timothy P. Kozub, Stuart Cooper, Jonghyuk Park
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Patent number: D795762Type: GrantFiled: December 22, 2015Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventor: Hwasup Lee
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Patent number: D796088Type: GrantFiled: January 19, 2016Date of Patent: August 29, 2017Assignee: GM Global Technology Operations LLCInventors: Steven M. McCabe, Maxwell A. Sullivan