Patents Assigned to GM Global Technology Operations LLC
  • Publication number: 20220144308
    Abstract: The present application generally relates to a method and apparatus for controlling an autonomous vehicle. In particular, the method and apparatus are operative for detecting, by a sensor, an object within a first vehicle path, generating, by a processor, a second vehicle path in response to either the detection of the object such that the second vehicle path avoids the object, or a user initiated trajectory shift, generating, by the processor, an initial steering torque in response to the second vehicle path, performing, by the processor, an adaptation on the initial steering torque to generate an adapted steering torque in response to the initial steering torque exceeding a torque rate limit, and controlling, by a vehicle controller a host vehicle steering system to follow the second vehicle signal path in response to the adapted steering torque.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Amir Takhmar, Jayant Sachdev, Mohammed Raju Hossain, Nathan Fujimoto, Joshua M. Levin
  • Publication number: 20220144266
    Abstract: In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for implementing a lane-keeping assist unit of a vehicle by receiving information of a plurality of road geometries, and driving scenarios wherein at least one driving scenario is combined with a target path that is parallel and biased from a lane center by a desired path offset, and a reference path for guiding the vehicle to merge with the target path; adapting the reference path with control based on a selected road geometry and driving scenario; adjusting the desired path offset by considering lane markings during an intervention for an inner curve, an outer curve and a straight road; controlling the vehicle trajectory for enabling the vehicle to track the reference path; exiting the intervention once a trajectory tracking performance by the vehicle is confirmed; and aborting once an instability of the trajectory tracking performance is confirmed.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jayant Sachdev, Reza Zarringhalam, Amir Takhmar, Jimmy Zhong Yan Lu, Paul A. Adam, Tetyana V. Mamchuk
  • Publication number: 20220144309
    Abstract: An ego vehicle includes decider modules and a grader module coupled to a resolver module. The decider modules generate trajectory decisions at a current time, generate a current two-dimensional slice of a flat space around the ego vehicle, generate future two-dimensional slices of the flat space by projecting the current two-dimensional slice of the flat space forward in time, and generate a three-dimensional state space by stacking the current two-dimensional slice and the future two-dimensional slices. The grader module generates rewards for the trajectory decisions based on a recent behavior of an ego vehicle. The resolver module selects a final trajectory decision for the ego vehicle from the trajectory decisions based on the three-dimensional state space and the rewards. The current two-dimensional slice includes a current ego vehicle location and current neighboring vehicle locations. The future two-dimensional slices include future ego vehicle locations and future neighboring vehicle locations.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Tiffany J. Hwu, Iman Mohammadrezazadeh, Michael J. Daily, Rajan Bhattacharyya
  • Publication number: 20220144276
    Abstract: In accordance with an exemplary embodiment, methods and systems are provided for controlling automatic overtake functionality for a host vehicle. In on such exemplary embodiment, a disclosed method includes: (i) obtaining, via a plurality of sensors, sensor data pertaining to the host vehicle and a roadway on which the host vehicle is traveling; (ii) determining, via a processor, when an automatic overtake is recommended, using the sensor data in conjunction with one or more threshold values; (iii) receiving driver inputs pertaining to the automatic overtake; and (iv) adjusting, via the processor, the one or more threshold values for the automatic overtake based on the driver inputs.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jeffrey S. Parks, Namal P. Kumara, Paul A. Adam, Gabriel T. Choi, Michael J. Abowd, Braden J. Swantick
  • Publication number: 20220144341
    Abstract: A method for generating a steering command for controlling a vehicle is provided.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Amir Takhmar, Joshua M. Levin, Jimmy Zhong Yan Lu, Jayant Sachdev, Reza Zarringhalam
  • Publication number: 20220150966
    Abstract: The present application relates to a method and apparatus for intelligent wireless protocol optimization including receiving, by a processor, a request from a first media access controller to transmit a first data signal, transmitting, by the processor, a ready to send packet to the second media access controller in response to the second media access controller being currently transmitting a second data signal, transmitting the first data signal by the first media access controller, transmitting a clear to send packet by the second media access controller to the second media access controller in response to the transmitting of the first data signal by the first media access controller, and continuing transmission of the second data signal in response to a completion of the transmission of the first data signal by the first media controller.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lakshmi V. Thanayankizil, Steven Hartley
  • Patent number: 11328596
    Abstract: In one example implementation, a computer-implemented method includes receiving, by a host processing device, timestamps from a vehicle processing system of a target vehicle, the timestamps being determined based at least in part on parking area data for a target parking area and vehicle data for the target vehicle. The method further includes calculating, by the host processing device, an arrival rate and a service rate based on the timestamps. The method further includes calculating, by the host processing device, a probability of parking availability for the target parking area based at least in part on the arrival rate and the service rate. The method further includes controlling, by the host processing device, the vehicle based at least in part on the probability of parking availability for the target parking area.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Shu Chen, Jinzhu Chen, Fan Bai, Donald K. Grimm
  • Patent number: 11326683
    Abstract: A method for controlling a process for manufacturing a bevel gear includes forming, via a first process, a ring gear and determining a first set of parameters associated with the ring gear, and forming, via a second process, the pinion gear, and determining a second set of parameters associated with the pinion gear. The ring gear and the pinion gear are paired, and a single-flank test is executed on the paired ring gear and pinion gear to determine a third set of parameters. The paired ring gear and pinion gear are assembled into a final assembly, and an end-of-line noise/vibration analysis of the final assembly is executed. The noise/vibration analysis, the first set of parameters, the second set of parameters, and the third set of parameters are evaluated, and one of the first process, the second process, the pairing process, and the assembly process are adjusted based thereon.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 10, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Hai Xu, Jeffrey N. Heaton, Scott M. Neher, Brian T. King, Syed M. Raza, Travis Bussell
  • Patent number: 11326505
    Abstract: A system for controlling a fan of a vehicle engine. The system comprises: i) a fan configured to selectively cool the vehicle engine; and ii) an engine control module configured to: a) turn on the fan when the engine temperature exceeds a selected temperature threshold; b) determine when the vehicle engine is operating in an engine braking mode; and c) in response to the engine operating in the engine braking mode, turn on the fan when the engine temperature is below the selected temperature threshold. The engine control module turns the fan off as a means of hardware protection of the fan clutch even during engine braking modes.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Maqsood Rizwan Ali Khan, Mark R. Claywell, Paul M. Riherd, II, Bryston Hollis
  • Patent number: 11328878
    Abstract: A porous carbon material includes a hierarchical porous structure including a primary microporous structure and at least one of a secondary mesoporous structure and a secondary macroporous structure. The porous carbon material is formed by combining a halogenated-hydrocarbon, an aprotic hydrocarbon solvent, and a reductant to initiate a reaction that forms intermediate particles having a microporous framework; and subjecting the intermediate particles to a heat treatment at a heat treatment temperature ranging from about 300° C. to less than 1,500° C. for a heat treatment time period ranging from about 20 minutes to about 10 hours to thereby form the porous carbon material. The aprotic hydrocarbon solvent is selected from the group consisting of toluene, hexane, cyclohexane, and combinations thereof.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Fang Dai, Jingmei Shen, Mei Cai, Anne M. Dailly
  • Patent number: 11326690
    Abstract: Presented are Brake Transmission Shift Interlock (BTSI) systems for vehicle powertrains, methods for making/operating such BTSI systems, and vehicles equipped with a BTSI system. A BTSI system for a motor vehicle includes a shifter solenoid with a solenoid body that mounts to the vehicle body, and a solenoid armature that is movably attached to the solenoid body to transition back-and-forth between locked and unlocked positions. The shifter solenoid is selectively operable via a brake control module to move the solenoid armature between the locked and unlocked positions to thereby block and unblock movement of a gear shifter from the park position, respectively. A position switch mounts to the vehicle body adjacent the shifter solenoid and detects the vehicle transmission being in a park mode. The position switch selectively mechanically engages with the shifter solenoid such that the solenoid armature, upon moving to the locked position, pushes closed the position switch.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: May 10, 2022
    Assignee: GM Global Technology Operations LLC
    Inventor: Michael A. Van Camp
  • Patent number: 11327170
    Abstract: A method and system involve obtaining reflected signals in a radar system using a first one-dimensional array of antenna elements and a second one-dimensional array of antenna elements. The reflected signals result from reflection of transmitted signals from the radar system by one or more objects. The method includes processing the reflected signals obtained using the first one-dimensional array of antenna elements to obtain a first array of angle of arrival likelihood values in a first plane, and processing the reflected signals obtained using the second one-dimensional array of antenna elements to obtain a second array of angle of arrival likelihood values. A four-dimensional image indicating a range, relative range rate, the first angle of arrival, and the second angle of arrival for each of the one or more objects is obtained.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Oded Bialer, Amnon Jonas
  • Patent number: 11325531
    Abstract: A system for promoting passenger trust and to mitigate motion sickness in a vehicle may include a first sensor structured to detect an operational status of the vehicle, a processor operably coupled to the first sensor; and a subliminal sensory system operably coupled to the processor. The processor may be structured to control the subliminal sensory system to subliminally provide information about the operational status of the vehicle to a passenger.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Joseph F. Szczerba, Jingyan Wan, Omer Tsimhoni
  • Patent number: 11326590
    Abstract: A variable displacement pump for supplying fluid to a system is described. Controlling the variable displacement pump is determined based upon inputs from a fluidic pressure sensor and an accelerometer, and includes determining a desired fluidic pressure and monitoring, via the fluidic pressure sensor, an actual fluidic pressure. A pressure error term is determined based upon a difference between the actual fluidic pressure and the desired fluidic pressure. A time-integrated pressure error term is determined based upon the pressure error term, and a g-force is determined based upon an input signal from the accelerometer. The variable displacement pump is controlled in response to the time-integrated pressure error term when the g-force is greater than a threshold g-force.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: May 10, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark R. Claywell, Alex Cooley, Bryan K. Pryor
  • Patent number: 11326664
    Abstract: A method for reshaping an electric drive signal of a real-time damper in a sprung mass system includes detecting a periodic frequency and magnitude of a target periodic vibration of a sprung mass. The periodic vibration has velocity and elasticity components that are 90 degrees out-of-phase. An electric drive signal to the real-time damper is reshaped by a controller depending on polarity of the velocity component to thereby generate a composite drive signal. The damper is energized using the composite drive signal to modify a damper force. Reshaping the electric drive signal includes injecting a force and/or an intermittent drive suppression component onto the electric drive signal based on the frequency and magnitude. The sprung mass system may have a frame and body, motion and wheel speed sensors, the real-time dampers, road wheels, and a controller programmed to perform the method.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 10, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Kenneth L. Oblizajek, Larry G. Gepfrey, John D. Sopoci
  • Patent number: 11325594
    Abstract: Methods and systems to implement sensor fusion to determine collision potential for a vehicle include identifying a specific intersection that the vehicle is approaching, and identifying collision potential scenarios associated with one or more paths through the specific intersection. Each collision potential scenario defines a risk of a collision between the vehicle and an object in a specified area. A weight with which one or more information sources of the vehicle are considered is adjusted for each collision potential scenario such that a highest weight is given to one or more of the one or more information sources that provide most relevant and reliable information about the specified area. Sensor fusion is implemented based on the adjusting the weight of the one or more information sources and performing detection based on the sensor fusion, and an alert is provided or actions are implemented according to the detection.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Shengbing Jiang, Shuqing Zeng, Prakash Mohan Peranandam, Meng Jiang, Jiyu Zhang, Mohamed A. Layouni
  • Patent number: 11327901
    Abstract: A modular dynamically allocated capacity storage system (MODACS) is provided and includes a housing and a control module. The housing includes source terminals, switches, cells, and sensing module. The source terminals supplying power at a first voltage potential to a first plurality of loads and power at a second voltage potential to a second plurality of loads. The cells are configured to supply power to each of the source terminals based on states of the switches. The sensing modules are configured to determine parameters of each of the cells and generate corresponding status signals. The control module is configured to receive a power request signal, and based on the power request signal and the parameters of each of the cells, determine a connected configuration for the cells relative to each other and the plurality of source terminals and set states of the switches according to the connected configuration.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Suresh Gopalakrishnan, Chandra S. Namuduri, Lyall K. Winger, Dave G. Rich
  • Patent number: 11327506
    Abstract: A system and method for monitoring a road segment includes determining a geographic position of a vehicle in context of a digitized roadway map. A perceived point cloud and a mapped point cloud associated with the road segment are determined. An error vector is determined based upon a transformation between the mapped point cloud and the perceived point cloud. A first confidence interval is derived from a Gaussian process that is composed from past observations. A second confidence interval associated with a longitudinal dimension and a third confidence interval associated with a lateral dimension are determined based upon the mapped point cloud and the perceived point cloud. A Kalman filter analysis is executed to dynamically determine a position of the vehicle relative to the roadway map based upon the error vector, the first confidence interval, the second confidence interval, and the third confidence interval.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: May 10, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Lawrence A. Bush, Brent N. Bacchus, James P. Neville, Upali P. Mudalige
  • Patent number: 11325563
    Abstract: A system and method for actuating a vehicle system tracks approach to the vehicle and determines propriety of system actuation based upon trajectory information and other conditions.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Besi Rrumbullaku, Thiago Laserra Lima, Vincent C. Rovis
  • Patent number: D951497
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 10, 2022
    Assignee: GM Global Technology Operations LLC
    Inventor: Clayton R Davis