Patents Assigned to GM
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Patent number: 9482339Abstract: A continuously variable transmission (CVT) includes input and output members, a primary variator pulley, and a secondary variator pulley. The respective variator pulleys are responsive to primary and secondary pressures. Speed sensors measure a respective rotational speed of each variator pulley. A controller executes a method by receiving the measured rotational speeds, calculating a current speed ratio of the CVT above a threshold CVT speed ratio using the rotational speeds, comparing the calculated current speed ratio to calibrated threshold ratios during a sudden stop event of the vehicle, and selectively executing a CVT control action after the calculated current speed ratio drops below the threshold CVT speed ratio during the sudden stop event. The control action depends on which of the threshold ratios is exceeded by the calculated current speed ratio after the calculated current speed ratio drops below the threshold CVT speed ratio, and on the measured rotational speeds.Type: GrantFiled: March 6, 2015Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventors: Paul G. Otanez, Zhen J. Zhang
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Patent number: 9482259Abstract: A fixing unit for a fastening device to fix a first vehicle component to a second vehicle component is disclosed. The fastening device includes a plate element fixed to a coupling section on an essentially flat surface of the first vehicle component. A threaded stud extends from the plate element and is configured to be arranged in a receptacle of a second vehicle component.Type: GrantFiled: October 27, 2014Date of Patent: November 1, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Jonas Buettner
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Patent number: 9482330Abstract: A transmission for transferring mechanical power between an input member and an output member is described, and includes a first synchronous electric machine including a first stator, a first distal rotor and a first proximal rotor and a second synchronous electric machine including a second stator, a second distal rotor and a second proximal rotor. The input member rotatably couples to the first distal rotor and to the second proximal rotor and the output member rotatably couples to the second distal rotor and to the first proximal rotor. Mechanical power is transferrable between the input member and the output member without torque being applied by the first stator.Type: GrantFiled: May 12, 2015Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventors: Alan G. Holmes, Norman K. Bucknor
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Patent number: 9482261Abstract: A fastening element is provided for a motor vehicle having a nut and a housing accommodating the nut, by which the fastening element can be fastened to a support part, in particular body panel, body attachment part or similar vehicle part of vehicle attachment part. It is provided that the housing is a plastic part with fixing device molded thereon for the clamping and/or positively joined fixing of the fastening element on the support part. A support part is further provided for a motor vehicle, on which a fastening element is fixed. A wiper motor is provided having such a support part.Type: GrantFiled: September 25, 2013Date of Patent: November 1, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Joachim Lacroix, Joerg Schneider
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Patent number: 9481488Abstract: A pallet assembly and a lid apparatus for the pallet assembly include a first lid segment and a second lid segment selectively cooperating with each other. The lid segments each include an outer edge and an inner edge spaced in an opposing relationship. The inner edges of the lid segments are configured to face each other. The first lid segment includes a first locking feature disposed proximal to the inner edge of the first lid segment and the second lid segment includes a second locking feature disposed proximal to the inner edge of the second lid segment. The lid segments are movable between an engaged position in which the locking features engage each other to secure the lid segments together to define a complete lid, and a disengaged position in which the locking features disengage from each other to separate the lid segments.Type: GrantFiled: February 27, 2015Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventor: Neal A. Lewis
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Patent number: 9482710Abstract: An electrical part testing system for evaluating quality of an insulated electrical part, including a computer-controlled switching apparatus for providing an original voltage to the electrical part automatically according to a pre-established testing scheme calling for provision of voltage to each phase of the part, in turn, while grounding the other phases of the part. A high-frequency filter for receiving receive the original voltage, receiving a load voltage emanating from the electrical part in response to the part receiving the original voltage, and filtering the original voltage from the load voltage to isolate any partial-discharge voltage added to the original voltage by the electrical part while the part is being electrified by the original voltage, yielding a filtered signal. A computing device determines, based on a comparison of a peak amplitude of the partial-discharge inception voltage to a voltage threshold, the quality of the electrical part being tested.Type: GrantFiled: September 11, 2013Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventors: John S. Agapiou, Thomas A. Perry, Jon Matthew Radlick
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Patent number: 9481224Abstract: An active airflow outlet for a vehicle and method for facilitating airflow through an active airflow outlet are provided. The active airflow outlet may operate in one of a static mode and an active mode. The active airflow outlet may include a motor, a gear assembly, a plurality of vent blades, and at least one control mechanism. The gear assembly may be operatively connected to the motor and the plurality of vent blades. The plurality of vent blades may be capable of occupying one of an open position and a closed position. The at least one control mechanism may be configured to signal the plurality of vent blades to rotate from the closed position to the open position and signal the motor to rotate the gear assembly and the plurality of vent blades in the active mode to facilitate additional airflow through the active airflow outlet.Type: GrantFiled: November 1, 2012Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventor: Gerard Brinas
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Patent number: 9482173Abstract: An indicated mean effective pressure (IMEP) module determines IMEPs for combustion cycles of cylinders of an engine, respectively. A coldstart indication module indicates whether the engine is in a cold state after a startup of the engine. A fueling correction module, when the engine is in the cold state, selectively increases a fueling correction for one of the cylinders based on the IMEP of the one of the cylinders. An equivalence ratio (EQR) module selectively increases an EQR of the one of the cylinders based on the fueling correction for the one of the cylinders.Type: GrantFiled: August 12, 2014Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventors: Kenneth J. Buslepp, Julian R. Verdejo, Bruce F. Hunter, Daniel G. Brennan
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Patent number: 9482147Abstract: A method for controlling intake airflow in an internal combustion engine including an intake air compressor includes determining a first compressor boost signal based upon a predetermined intake manifold pressure command, determining a second compressor boost signal based upon a predetermined exhaust pressure limit, determining a compressor boost control command based upon the first compressor boost signal and a limit comprising one of a maximum boost setting and said second compressor boost signal, and controlling the intake air compressor in response to the compressor boost control command.Type: GrantFiled: May 22, 2013Date of Patent: November 1, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Yongjie Zhu, Yue-Yun Wang, Ibrahim Haskara
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Patent number: 9482328Abstract: A torque transmission device for a powertrain system is described, and includes a continuously variable unit (CVU) of a continuously variable transmission (CVT) arranged in parallel with a fixed-gear-ratio transmission to transfer torque between a transmission input member and a transmission output member. The fixed-gear-ratio transmission includes first and second planetary gear sets arranged to transfer torque between the transmission input member and the transmission output member in one of a plurality of fixed-gear-ratio modes by selectively activating a plurality of transmission clutches. The transmission input member rotatably couples to one of the nodes of the first planetary gear set and one of the nodes of the second planetary gear set. The torque transmission device transfers torque in one of a continuously variable mode, a fixed underdrive input/output speed ratio, or a fixed overdrive input/output speed ratio.Type: GrantFiled: January 8, 2015Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventors: Chi-Kuan Kao, Chunhao J. Lee, Kumaraswamy V. Hebbale, Farzad Samie
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Patent number: 9483707Abstract: A method for recognizing a known object in a field of view of a three-dimensional (3D) vision system includes capturing a bitmap image file of the field of view and executing a first feature extraction to generate appearance features including a color histogram and an edge direction histogram. A reduced search space is identified based upon the appearance features including the color histogram and the edge direction histogram. A second feature extraction of the bitmap image file is executed to identify geometric features including a viewpoint feature histogram and an ensemble of shape functions. The appearance features and the geometric features are fused with contents of the reduced search space. The fused appearance features, geometric features and contents of the reduced search space are compared with a plurality of predetermined partial views of a plurality of known objects to recognize one of the known objects.Type: GrantFiled: February 4, 2015Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventor: Zhichao Chen
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Patent number: 9482195Abstract: A number of variations of the invention may include a fuel supply system for an internal combustion engine and/or method, wherein heat is exchanged from gaseous fuel in a gaseous fuel line and at least one of a liquid fuel in a liquid fuel feed line or a liquid fuel return line which are connected to an injection fuel rail of an internal combustion engine. In a number of variations, a regulator or throttling valve is provided in the gaseous fuel line to expand gas flowing therein and reduce the temperature of the gas to further cool the liquid fuel flowing in the liquid fuel feed line or the liquid fuel return line. Another variation may include a method comprising exchanging heat from gaseous fuel in a gaseous fuel line and a liquid fuel in a liquid fuel feed line or a liquid fuel return line which are connected to an injection fuel rail of an internal combustion engine.Type: GrantFiled: March 14, 2013Date of Patent: November 1, 2016Assignee: GM Global Technology Operations LLCInventors: Mark D. Archer, Nicholas Carter, Richard W. Hurley, Jon D. Edsell
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Publication number: 20160315609Abstract: A method of controlling a slew rate of a MOSFET connected to a battery for supplying an electrical current to an electrical load is provided. A state transition of the MOSFET is provided and a drain-source voltage of the MOSFET is monitored. A variable current is provided through a gate of the MOSFET. A constant current is provided through the gate of the MOSFET, when the drain-source voltage of the MOSFET satisfies a predefined condition that is a function of a battery voltage.Type: ApplicationFiled: April 22, 2016Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Simone ALPE
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Publication number: 20160311343Abstract: A motor vehicle seat arrangement is provided with two spaced apart seat rails, to which two spaced apart cross profiles are rigidly fastened. A seat structure is joined with the cross profiles.Type: ApplicationFiled: April 22, 2016Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Udo MILDNER, Frank LEOPOLD, Lothar TESKE
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Publication number: 20160312738Abstract: An internal combustion engine includes a cylinder block made of a first material having a plurality of cylinders and an insert made of a second material having a greater stiffness and a lower thermal coefficient of expansion than the first material and casted-in-place into the cylinder block. For each cylinder of the cylinder block, the insert includes a bolted anchor having a first threaded bore suitable to be engaged by an head bolt for fixing a cylinder head to the cylinder block, and a second threaded bore suitable to be engaged by a cap bolt for fixing a main bearing cap to the cylinder block, and a lubrication gallery connected to a plurality of the anchors.Type: ApplicationFiled: April 21, 2016Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Lorenzo MAGRO
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Publication number: 20160311355Abstract: A tailgate assembly includes a structure, and a handle assembly attached to the structure. The handle assembly is moveable relative to the structure between a stowed position, an intermediate position, and a deployed position. The handle assembly includes a handle portion, and a mounting system attached to the structure and rotatably supporting the handle portion relative to the structure. The mounting system supports the handle portion for rotation about both a first axis and a second axis. The handle portion rotates about the first axis to move between the stowed position and the intermediate position to position the handle portion outside an interior space of the structure. The handle portion rotates about the second axis to move between the intermediate position and the deployed position, whereby a user may grasp the handle portion.Type: ApplicationFiled: April 23, 2015Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gary W. Krajenke, Mark G. Rogers
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Publication number: 20160312754Abstract: A powertrain system is described, and includes an internal combustion engine and an electric machine configured to generate propulsion torque responsive to a driver torque request. A method for operating the powertrain system includes determining, in response to a request to execute an engine autostart operation, whether a driveline torque sag may occur. The method further includes forgoing executing the engine autostart operation when it is determined that a driveline torque sag will occur during the execution of the engine autostart operation.Type: ApplicationFiled: April 23, 2015Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Meng Wang, Anthony Christman, Poh Fong Chin, John Janczak, Anthony H. Heap, Kee Yong Kim, Bryan J. Morton, Goro Tamai
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Publication number: 20160311317Abstract: A cover assembly for a filling port of a vehicle includes a hinge structure and a cover portion. The hinge structure includes an interface portion having a plurality of retention tabs. Each of the plurality of retention tabs include an inboard surface that is spaced from an outboard surface of the interface portion. The cover portion includes a plurality of cover tabs. Each of the cover tabs include an outboard surface that is spaced from an inboard surface of the cover portion. The cover portion is disposed adjacent the outboard surface of the interface portion. Each of the retention tabs is engaged with one of the cover tabs in interlocking engagement. Each of the cover tabs is disposed between one of the retention tabs and the interface portion. Each of the retention tabs is disposed between one of the cover tabs and the cover portion.Type: ApplicationFiled: August 25, 2015Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Matthew M. Stack, Robin L. Champion
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Publication number: 20160311424Abstract: A powertrain system for a vehicle is described, and includes an internal combustion engine mechanically coupled to an electric machine to generate propulsion torque and electric power storable on an energy storage device. A method for controlling the powertrain system includes determining a first desired powertrain output power associated with a road load and determining a second desired powertrain output power associated with a feed-forward state-of-charge (SOC) for the energy storage device. The internal combustion engine and the electric machine are controlled responsive to the first and second desired powertrain output powers.Type: ApplicationFiled: April 23, 2015Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Luke David Shepley, Anthony H. Heap, Eric Piper, Kee Yong Kim
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Publication number: 20160313189Abstract: A resettable sensor assembly includes a body having a axis and defining a cavity therein. The body includes a first plurality of threads disposed about the axis. The assembly includes a housing mated to the body and including at least one electrical contact. The assembly further includes a plate. The assembly also includes 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: ApplicationFiled: April 21, 2016Publication date: October 27, 2016Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Richard J. Skurkis, Nancy L. Johnson, Paul W. Alexander, Dorel M. Sala, Nicholas W. Pinto, IV, Xiujie Gao