Patents Assigned to GM Global Technologies Operations LLC
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Patent number: 10478916Abstract: A system, apparatus, or method for joining components is provided. The system applies force along an axis, with a friction pin, to a first substrate, such as with a joiner or joining apparatus. The system also frictionally melts a portion of the first substrate adjacent the friction pin by rotating the friction pin about the axis at a first speed within the first substrate. The system also applies force to the second substrate along the axis and frictionally melts a portion of the second substrate adjacent the friction pin by rotating the friction pin at a second speed within the second substrate. The system embeds a portion of the friction pin within the first substrate and the second substrate. In some configurations, the first speed and the second speed are substantially equivalent. In other configurations, the first speed is different from the second speed.Type: GrantFiled: November 2, 2017Date of Patent: November 19, 2019Assignee: GM Global Technology Operations LLCInventors: Joseph M. Polewarczyk, Hesham A. Ezzat
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Patent number: 10483592Abstract: A method of manufacturing a lithium ion battery cell. A non-aqueous liquid electrolyte solution is placed in contact with particles of a lithium ion-exchanged zeolite material for a time sufficient to remove water molecules from the liquid electrolyte solution. Thereafter, the liquid electrolyte solution may be introduced into an electrochemical cell assembly and hermetically sealed within a cell casing to form a lithium ion battery cell.Type: GrantFiled: August 30, 2017Date of Patent: November 19, 2019Assignee: GM Global Technology Operations LLCInventors: Xingcheng Xiao, Mark W. Verbrugge, Mei Cai, Sherman H. Zeng
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Patent number: 10479220Abstract: A powertrain includes a motor-generator that is coupled to an engine. A starter mechanism is coupled to the engine. A first energy storage device is disposed in a parallel electrical relationship with the starter mechanism. A second energy storage device is disposed in a parallel electrical relationship with the motor-generator. The electrical circuit exhibits a first electrical resistance between the first energy storage device and the motor-generator, and a second electrical resistance between the second energy storage device and the motor-generator. The first electrical resistance is greater than the second electrical resistance so that electrical energy from the motor-generator more easily flows to the second energy storage device than the first energy storage device, and the motor-generator more easily draws electrical energy from the second energy storage device than from the first energy storage device.Type: GrantFiled: April 11, 2017Date of Patent: November 19, 2019Assignee: GM Global Technology Operations LLCInventors: Chandra S. Namuduri, Venkata Prasad Atluri, Suresh Gopalakrishnan
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Patent number: 10481215Abstract: A method and an apparatus for evaluating a battery cell. The battery cell may include a hermetically sealed outer casing, a plurality of electrically conductive components enclosed within the outer casing, an electrically conductive terminal having a proximal end that extends within the outer casing and a distal end that extends in a longitudinal direction relative to the battery cell outside the outer casing, and a solid electrical and mechanical joint formed between one or more of the electrically conductive components and the proximal end of the electrically conductive terminal. Evaluation of the battery cell may include measuring the impedance of the battery cell while applying a longitudinal pulling force or a transverse bending force to the electrically conductive terminal and the solid electrical and mechanical joint.Type: GrantFiled: August 31, 2017Date of Patent: November 19, 2019Assignee: GM Global Technology Operations LLCInventors: Wayne Cai, Debejyo Chakraborty, Teresa J. Rinker, Megan E. McGovern, Ryan C. Sekol, Diana M. Wegner, Kevin B. Rober
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Publication number: 20190348701Abstract: A battery assembly includes a heat exchange device including a first conduit with a channel and a heat exchange plate contiguous with the first conduit. A unified frame having at least one wall is configured to at least partially encapsulate the heat exchange device. A first electrode stack is positioned at the first side of the heat exchange plate and configured to fit within a first cavity defined by the at least one wall and the first side of the heat exchange plate. In one example, the first conduit of the heat exchange device is embedded within the at least one wall. In another example, the first conduit extends along the at least one wall, the first conduit being outside of the first cavity. A method of forming the battery assembly may include forming the heat exchange device and joining a unified frame.Type: ApplicationFiled: May 11, 2018Publication date: November 14, 2019Applicant: GM Global Technology Operations LLCInventors: Michael P. Balogh, Ryan C. Sekol, Megan E. McGovern, Teresa J. Rinker, Ingrid A. Rousseau
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Publication number: 20190345616Abstract: A method monitoring a corrosion of a device includes conveying an electrical current through a monitoring component. The monitoring component includes a replaceable consumable electrode embedded in an electrolyte and disposed onboard and in electrical communication with the device. The electrode is configured to degrade before the device corrodes. The monitoring component includes a sensor disposed in electrical communication with the replaceable consumable electrode and the device. The sensor is configured for detecting a degradation of the electrode. After conveying, the method includes sending a first signal from the sensor to a storage medium. After sending the first signal, the method includes sending a second signal from the storage medium to a communication device to thereby monitor the corrosion. A monitoring system and a method of monitoring a corrosion of a plurality of joints of the device are also described.Type: ApplicationFiled: May 14, 2018Publication date: November 14, 2019Applicant: GM Global Technology Operations LLCInventors: Surender Maddela, Hua-Tzu Fan, Azeem Sarwar, Andrew C. Bobel, Jason Prince, Hongliang Wang, Venkateshwar R. Aitharaju
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Patent number: 10473548Abstract: A device for detecting presence of a fluid is described, and includes a resistive sensing element including a first conductive element proximal to a second conductive element, wherein the first conductive element is electrically isolated from the second conductive element, and a controller disposed to monitor electrical conductivity between the first conductive element and the second conductive element. The controller includes an instruction set that is executable to periodically monitor a signal associated with the electrical conductivity between the first conductive element and the second conductive element. A baseline value for the electrical conductivity between the first conductive element and the second conductive element can be determined based upon the periodically monitored signal, and a signal waveform can be determined based upon the periodically monitored signal. The signal waveform can be characterized, and presence of a fluid can be detected based upon the characterized waveform.Type: GrantFiled: August 28, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Philip S. Jack, Douglas R. Drauch, John M. Thornton, Philip Wolschendorf, Joshua L. Engle, Derek M. Arrotta
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Patent number: 10471496Abstract: The indexing self-aligning hardware tool can join components and includes a first tool section including a die carrier, one or more dies coupled to the die carrier, and a first locator coupled to the die carrier. The indexing self-aligning hardware tool also includes a second tool section having a support body, one or more blankholders coupled to the support body, one or more punches movably disposed inside the blankholders, and a second locator coupled to the support body. The first locator and the second locator are configured to mate with a product feature locator of a component to align the first tool section relative to the second tool section.Type: GrantFiled: August 12, 2016Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Matthew P. Simonin, Robert N. Saje, Bhavesh Shah, Kevin Stang
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Patent number: 10473197Abstract: A torque transfer mechanism includes an input member to receive an input torque from a propulsion source and an output member coupled to the input member to transfer the input torque to a driveline component. The torque transfer mechanism also includes a damping mechanism having at least one spring element to restrict relative rotation between the input member and the output member. wherein the at least one spring element defines a first spring rate corresponding to an initial range of travel that is less than a second spring rate corresponding to a subsequent range of travel.Type: GrantFiled: June 6, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Derek F Lahr, Farzad Samie
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Patent number: 10471820Abstract: A drivetrain system for a vehicle is described, and includes an internal combustion engine, a geartrain, an electric machine, a power take-off unit, and a driveline. The internal combustion engine is coupled to the geartrain via a disconnect clutch and a torque converter. The geartrain includes a transmission and a differential gearset, including an output member of the transmission coupled to an input member of the differential gearset. The input member of the differential gearset is coupled to a rotor of the electric machine and the power take-off unit. The differential gearset is coupled to first and second intermediate driveshaft members of the driveline to transfer propulsion power to vehicle wheels that are arranged in a front-wheel configuration.Type: GrantFiled: May 1, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Derek F. Lahr, Farzad Samie, Norman K. Bucknor, Chunhao J. Lee, Dongxu Li, Chandra S. Namuduri, Alexandru Rajala
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Patent number: 10476348Abstract: An electric motor includes a rotor having a stack of laminations positioned axially relative to one another. The stack of laminations includes a first rotor lamination that is divided into a first portion and a second portion. The first rotor lamination is configured to have an asymmetric mass distribution such that the first portion has a first mass and the second portion has a second mass, with the first mass being different from the second mass. The electric motor is configured to selectively generate an unbalanced force during operation (i.e., when the rotor is spinning). The electric motor may include a stator configured to have an asymmetric magnetic field distribution. The electric motor may be employed in a haptic assembly and eliminates the need for a separate eccentric mass to generate a haptic signal.Type: GrantFiled: December 18, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Nilesh D. Mankame, Alireza Fatemi, Avoki M. Omekanda, Thomas W. Nehl, Lei Hao
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Patent number: 10473474Abstract: In various embodiments the present disclosure provides a system and a method for estimating energy usage in a vehicle. The system includes hardware that perform certain operations that include receiving data associated with a route to be taken by the vehicle. The operations include determining, based on the data associated with the route and a state of the vehicle, an estimate corresponding to the energy that would be used by the vehicle when traversing a segment of the route.Type: GrantFiled: October 3, 2014Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Sal S. V. Rajagopalan, Eric Wood, Jeff Gonder
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Patent number: 10472867Abstract: A system and method for controlling a door locking system includes a controller and at least one locking mechanism operatively connected to each of a plurality of doors. At least one lock switch connected to the controller selectively locks the at least one locking mechanism based at least partially on actuation of the at least one lock switch. At least one sensor array connected to the controller detects a vehicle condition from at least one of a first vehicle state and a second vehicle state.Type: GrantFiled: December 15, 2016Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Richard J. Lange, Jeffrey L. Konchan, Aaron P. Creguer
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Patent number: 10473182Abstract: A system for absorbing vibration and transmitting torque from a rotating power source to a rotatable load includes a rotatable driving member configured as an input to be driven by the power source to rotate about an axis of rotation. The system has a cam plate with a cam surface. A spring is configured to extend lengthwise in a radial direction relative to the axis of rotation. The spring is configured to be compressed due to the cam surface during relative rotation of the driving member and a driven member when the cam plate is operatively connected to rotate in unison with said one of the driving member and the driven member. The spring therefore has an effective spring rate dependent upon the cam surface, compression of the spring absorbs torsional vibration of the driving member, and the cam plate.Type: GrantFiled: April 27, 2018Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Dongxu Li, Leonid Basin, Shushan Bai
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Patent number: 10473627Abstract: An apparatus for in-situ monitoring of a workpiece includes a fluidic container defining a cavity and having a peripheral portion that defines an aperture. The fluidic container contains an acoustic transmission fluid. A conformable membrane is sealably disposed about the peripheral portion of the aperture of the fluidic container. The conformable membrane is disposed to sealably contain the acoustic transmission fluid within the fluidic container and to conform to a surface of a portion of the workpiece absent an interposed fluid. An acoustic source transducer is disposed in the cavity of the fluidic container and in contact with the acoustic transmission fluid. The acoustic source transducer is disposed to generate a first acoustic wave in the direction of the workpiece. An acoustic receiving transducer is disposed to monitor a residual acoustic wave that is reflected from the workpiece in response to the first acoustic wave.Type: GrantFiled: April 28, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Megan E. McGovern, Teresa J. Rinker
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Patent number: 10471990Abstract: A steering system for an automotive vehicle is disclosed. The steering system includes, in some embodiments, a steering shaft, a steering column jacket encircling at least a portion of the steering shaft, an emulator enclosed within a housing, the emulator coupled to the steering shaft, and a travel limiter assembly enclosed within the housing and coupled with the steering shaft, the travel limiter assembly comprising at least one rotational member having a pin and a groove configured to receive the pin, the groove including a stop portion. In some embodiments, the at least one rotational member and at least a portion of the steering shaft rotates within the housing and the pin travels within the groove until the pin encounters the stop portion after a predetermined degree of rotation of the steering shaft.Type: GrantFiled: June 20, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: John T. Zuzelski, David Juarez
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Patent number: 10473081Abstract: An electric starter system includes a brushless alternating current (AC) starter motor selectively coupled to an engine and having a rotor with a rotor position. A position sensor generates measured position signals indicative of rotor position. A controller is in communication with the sensor. The controller has sensorless logic, e.g., a BEMF, inductance, or high-frequency signal injection method, for generating an estimated rotor position. The controller executes a method in which, below a threshold speed of the starter motor, the controller calibrates the sensorless logic using the measured position signals and controls a torque operation of the starter motor using the measured position signals. Above the threshold speed, the torque operation is controlled solely using the estimated rotor position. A powertrain includes the engine, a transmission, a drive shaft, and a load, along with the electric starter system.Type: GrantFiled: April 24, 2018Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Lei Hao, Suresh Gopalakrishnan, Chandra S. Namuduri
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Patent number: 10473195Abstract: A continuously-variable transmission (CVT) assembly is employed for transmitting a torque from an external power-source. The CVT includes a variable-diameter input pulley and a variable-diameter output pulley, each having a respective range of adjustment. The CVT also includes a continuous torque-transmitting element extending between the variable-diameter input pulley and the variable-diameter output pulley, and thereby operatively connecting the input pulley to the output pulley. The CVT additionally includes a first elastic element having a first zero stiffness over the range of adjustment of the variable-diameter input pulley and configured to apply a first constant spring clamping force via the input pulley to the continuous torque-transmitting element.Type: GrantFiled: June 6, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Chengwu Duan, Farzad Samie, Jian Yao, Chi-Kuan Kao
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Patent number: 10473303Abstract: 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 formed of a material having embedded light diffusing particles and operative to be selectively operable to emit light that is transmitted through the lens to create a broad viewing angle. At least a portion of the second light module is integrated into the lens.Type: GrantFiled: May 3, 2018Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Andrzej Wasilewski, Matthew K. Monden
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Patent number: 10473213Abstract: A method of controlling a continuously variable transmission includes monitoring powertrain operating conditions, and calculating, via an electronic controller, a commanded clamping force based on the powertrain operating conditions, wherein the commanded clamping force includes a commanded clamping force of an input pulley and a commanded clamping force of an output pulley on the endless rotatable device. The method also includes activating, via the electronic controller, at least one of the input actuator and the output actuator such that an axial component of the input wedge force and the axial force of the input actuator together provide the commanded clamping force of the input pulley, and an axial component of the output wedge force and the axial force of the output actuator together provide the commanded clamping force of the output pulley.Type: GrantFiled: December 1, 2017Date of Patent: November 12, 2019Assignee: GM Global Technology Operations LLCInventors: Ying Huang, Chunhao J. Lee, Jian Yao, Chengwu Duan